From 6b87c21fc4c472e6a6fcb4c0683032e0df3d13b7 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 15 Dec 2018 23:34:13 +0100
Subject: [PATCH 001/191] chore/doc: Add more release docs

---
 CONTRIBUTING.md | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index e443bd6a1..a73a6b34b 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -81,7 +81,9 @@ npm link handlebars
 npm test
 ```
 
-## Releasing
+## Releasing the latest version
+
+*When releasing a previous version of Handlebars, please look into the CONTRIBUNG.md in the corresponding branch.*
 
 Handlebars utilizes the [release yeoman generator][generator-release] to perform most release tasks.
 
@@ -97,7 +99,15 @@ gem build handlebars-source.gemspec
 gem push handlebars-source-*.gem
 ```
 
-After this point the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.
+After the release, you should check that all places have really been updated. Especially verify that the `latest`-tags
+in those places still point to the latest version
+
+* [The npm-package](https://www.npmjs.com/package/handlebars) (check latest-tag)
+* [The bower package](https://github.com/components/handlebars.js) (check the package.json)
+* [The AWS S3 Bucket](http://builds.handlebarsjs.com.s3.amazonaws.com/) (check latest-tag)
+* [RubyGems](https://rubygems.org/gems/handlebars-source)
+
+When everything is OK, the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.
 
 [generator-release]: https://github.com/walmartlabs/generator-release
 [pull-request]: https://github.com/wycats/handlebars.js/pull/new/master

From 78dd89c13aa26c82bf73d27b2e29f1c01283d7a4 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 15 Dec 2018 23:40:08 +0100
Subject: [PATCH 002/191] chore: Use node 10 to build handlebars

Node 10 is LTS now...
---
 .travis.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 00c8b0013..ce9690a9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,12 +13,11 @@ env:
   - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
 matrix:
   include:
-  - node_js: '5'
+  - node_js: '10'
     env:
     - PUBLISH=true
     - secure: pLTzghtVll9yGKJI0AaB0uI8GypfWxLTaIB0ZL8//yN3nAEIKMhf/RRilYTsn/rKj2NUa7vt2edYILi3lttOUlCBOwTc9amiRms1W8Lwr/3IdWPeBLvLuH1zNJRm2lBAwU4LBSqaOwhGaxOQr6KHTnWudhNhgOucxpZfvfI/dFw=
     - secure: yERYCf7AwL11D9uMtacly/THGV8BlzsMmrt+iQVvGA3GaY6QMmfYqf6P6cCH98sH5etd1Y+1e6YrPeMjqI6lyRllT7FptoyOdHulazQe86VQN4sc0EpqMlH088kB7gGjTut9Z+X9ViooT5XEh9WA5jXEI9pXhQJNoIHkWPuwGuY=
-  - node_js: '4'
 cache:
   directories:
   - node_modules

From 27ac1ee39637813bd1c634f73f5a4fd8a063bee7 Mon Sep 17 00:00:00 2001
From: Timothy Lindvall <tlindvall@linkedin.com>
Date: Tue, 18 Dec 2018 15:14:16 -0800
Subject: [PATCH 003/191] Feat: Import TypeScript typings

- Import typings from DefinitelyTyped into repo.
- Update typings header to cite contributors from history and git blame.
- Update package.json to add typings field.
---
 lib/handlebars.d.ts | 356 ++++++++++++++++++++++++++++++++++++++++++++
 package.json        |   1 +
 2 files changed, 357 insertions(+)
 create mode 100644 lib/handlebars.d.ts

diff --git a/lib/handlebars.d.ts b/lib/handlebars.d.ts
new file mode 100644
index 000000000..181ef2ff5
--- /dev/null
+++ b/lib/handlebars.d.ts
@@ -0,0 +1,356 @@
+/* These definitions were imported from https://github.com/DefinitelyTyped/DefinitelyTyped
+ * and includes previous contributions from the DefinitelyTyped community by:
+ *   - Albert Willemsen <https://github.com/AlbertWillemsen-Centric>
+ *   - Boris Yankov <https://github.com/borisyankov>
+ *   - Jessica Franco <https://github.com/Kovensky>
+ *   - Masahiro Wakame <https://github.com/vvakame>
+ *   - Raanan Weber <https://github.com/RaananW>
+ *   - Sergei Dorogin <https://github.com/evil-shrike>
+ *   - webbiesdk <https://github.com/webbiesdk>
+ * For full history prior to their migration to handlebars.js, please see:
+ * https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/handlebars
+ */
+
+declare namespace Handlebars {
+  export interface TemplateDelegate<T = any> {
+      (context: T, options?: RuntimeOptions): string;
+  }
+
+  export type Template<T = any> = TemplateDelegate<T>|string;
+
+  export interface RuntimeOptions {
+      partial?: boolean;
+      depths?: any[];
+      helpers?: { [name: string]: Function };
+      partials?: { [name: string]: HandlebarsTemplateDelegate };
+      decorators?: { [name: string]: Function };
+      data?: any;
+      blockParams?: any[];
+  }
+
+  export interface HelperOptions {
+      fn: TemplateDelegate;
+      inverse: TemplateDelegate;
+      hash: any;
+      data?: any;
+  }
+
+  export interface HelperDelegate {
+      (context?: any, arg1?: any, arg2?: any, arg3?: any, arg4?: any, arg5?: any, options?: HelperOptions): any;
+  }
+  export interface HelperDeclareSpec {
+      [key: string]: HelperDelegate;
+  }
+
+  export interface ParseOptions {
+      srcName?: string,
+      ignoreStandalone?: boolean
+  }
+
+  export function registerHelper(name: string, fn: HelperDelegate): void;
+  export function registerHelper(name: HelperDeclareSpec): void;
+  export function unregisterHelper(name: string): void;
+
+  export function registerPartial(name: string, fn: Template): void;
+  export function registerPartial(spec: { [name: string]: HandlebarsTemplateDelegate }): void;
+  export function unregisterPartial(name: string): void;
+
+  // TODO: replace Function with actual signature
+  export function registerDecorator(name: string, fn: Function): void;
+  export function unregisterDecorator(name: string): void;
+
+  export function K(): void;
+  export function createFrame(object: any): any;
+  export function blockParams(obj: any[], ids: any[]): any[];
+  export function Exception(message: string): void;
+  export function log(level: number, obj: any): void;
+  export function parse(input: string, options?: ParseOptions): hbs.AST.Program;
+  export function compile<T = any>(input: any, options?: CompileOptions): HandlebarsTemplateDelegate<T>;
+  export function precompile(input: any, options?: PrecompileOptions): TemplateSpecification;
+  export function template<T = any>(precompilation: TemplateSpecification): HandlebarsTemplateDelegate<T>;
+
+  export function create(): typeof Handlebars;
+
+  export const escapeExpression: typeof Utils.escapeExpression;
+  //export const Utils: typeof hbs.Utils;
+  export const logger: Logger;
+  export const templates: HandlebarsTemplates;
+  export const helpers: { [name: string]: HelperDelegate };
+  export const partials: { [name: string]: any };
+  // TODO: replace Function with actual signature
+  export const decorators: { [name: string]: Function };
+
+  export function noConflict(): typeof Handlebars;
+
+  export class SafeString {
+      constructor(str: string);
+      toString(): string;
+      toHTML(): string;
+  }
+
+  export namespace Utils {
+      export function escapeExpression(str: string): string;
+      export function createFrame(object: any): any;
+      export function blockParams(obj: any[], ids: any[]): any[];
+      export function isEmpty(obj: any) : boolean;
+      export function extend(obj: any, ...source: any[]): any;
+      export function toString(obj: any): string;
+      export function isArray(obj: any): boolean;
+      export function isFunction(obj: any): boolean;
+  }
+
+  export namespace AST {
+      export const helpers: hbs.AST.helpers;
+  }
+
+  interface ICompiler {
+      accept(node: hbs.AST.Node): void;
+      Program(program: hbs.AST.Program): void;
+      BlockStatement(block: hbs.AST.BlockStatement): void;
+      PartialStatement(partial: hbs.AST.PartialStatement): void;
+      PartialBlockStatement(partial: hbs.AST.PartialBlockStatement): void;
+      DecoratorBlock(decorator: hbs.AST.DecoratorBlock): void;
+      Decorator(decorator: hbs.AST.Decorator): void;
+      MustacheStatement(mustache: hbs.AST.MustacheStatement): void;
+      ContentStatement(content: hbs.AST.ContentStatement): void;
+      CommentStatement(comment?: hbs.AST.CommentStatement): void;
+      SubExpression(sexpr: hbs.AST.SubExpression): void;
+      PathExpression(path: hbs.AST.PathExpression): void;
+      StringLiteral(str: hbs.AST.StringLiteral): void;
+      NumberLiteral(num: hbs.AST.NumberLiteral): void;
+      BooleanLiteral(bool: hbs.AST.BooleanLiteral): void;
+      UndefinedLiteral(): void;
+      NullLiteral(): void;
+      Hash(hash: hbs.AST.Hash): void;
+  }
+
+  export class Visitor implements ICompiler {
+      accept(node: hbs.AST.Node): void;
+      acceptKey(node: hbs.AST.Node, name: string): void;
+      acceptArray(arr: hbs.AST.Expression[]): void;
+      Program(program: hbs.AST.Program): void;
+      BlockStatement(block: hbs.AST.BlockStatement): void;
+      PartialStatement(partial: hbs.AST.PartialStatement): void;
+      PartialBlockStatement(partial: hbs.AST.PartialBlockStatement): void;
+      DecoratorBlock(decorator: hbs.AST.DecoratorBlock): void;
+      Decorator(decorator: hbs.AST.Decorator): void;
+      MustacheStatement(mustache: hbs.AST.MustacheStatement): void;
+      ContentStatement(content: hbs.AST.ContentStatement): void;
+      CommentStatement(comment?: hbs.AST.CommentStatement): void;
+      SubExpression(sexpr: hbs.AST.SubExpression): void;
+      PathExpression(path: hbs.AST.PathExpression): void;
+      StringLiteral(str: hbs.AST.StringLiteral): void;
+      NumberLiteral(num: hbs.AST.NumberLiteral): void;
+      BooleanLiteral(bool: hbs.AST.BooleanLiteral): void;
+      UndefinedLiteral(): void;
+      NullLiteral(): void;
+      Hash(hash: hbs.AST.Hash): void;
+  }
+}
+
+/**
+* Implement this interface on your MVW/MVVM/MVC views such as Backbone.View
+**/
+interface HandlebarsTemplatable {
+  template: HandlebarsTemplateDelegate;
+}
+
+// NOTE: for backward compatibility of this typing
+type HandlebarsTemplateDelegate<T = any> = Handlebars.TemplateDelegate<T>;
+
+interface HandlebarsTemplates {
+  [index: string]: HandlebarsTemplateDelegate;
+}
+
+interface TemplateSpecification {
+
+}
+
+// for backward compatibility of this typing
+type RuntimeOptions = Handlebars.RuntimeOptions;
+
+interface CompileOptions {
+  data?: boolean;
+  compat?: boolean;
+  knownHelpers?: {
+      helperMissing?: boolean;
+      blockHelperMissing?: boolean;
+      each?: boolean;
+      if?: boolean;
+      unless?: boolean;
+      with?: boolean;
+      log?: boolean;
+      lookup?: boolean;
+  };
+  knownHelpersOnly?: boolean;
+  noEscape?: boolean;
+  strict?: boolean;
+  assumeObjects?: boolean;
+  preventIndent?: boolean;
+  ignoreStandalone?: boolean;
+  explicitPartialContext?: boolean;
+}
+
+interface PrecompileOptions extends CompileOptions {
+  srcName?: string;
+  destName?: string;
+}
+
+declare namespace hbs {
+  // for backward compatibility of this typing
+  type SafeString = Handlebars.SafeString;
+
+  type Utils = typeof Handlebars.Utils;
+}
+
+interface Logger {
+  DEBUG: number;
+  INFO: number;
+  WARN: number;
+  ERROR: number;
+  level: number;
+
+  methodMap: { [level: number]: string };
+
+  log(level: number, obj: string): void;
+}
+
+declare namespace hbs {
+  namespace AST {
+      interface Node {
+          type: string;
+          loc: SourceLocation;
+      }
+
+      interface SourceLocation {
+          source: string;
+          start: Position;
+          end: Position;
+      }
+
+      interface Position {
+          line: number;
+          column: number;
+      }
+
+      interface Program extends Node {
+          body: Statement[];
+          blockParams: string[];
+      }
+
+      interface Statement extends Node {}
+
+      interface MustacheStatement extends Statement {
+          path: PathExpression | Literal;
+          params: Expression[];
+          hash: Hash;
+          escaped: boolean;
+          strip: StripFlags;
+      }
+
+      interface Decorator extends MustacheStatement { }
+
+      interface BlockStatement extends Statement {
+          path: PathExpression;
+          params: Expression[];
+          hash: Hash;
+          program: Program;
+          inverse: Program;
+          openStrip: StripFlags;
+          inverseStrip: StripFlags;
+          closeStrip: StripFlags;
+      }
+
+      interface DecoratorBlock extends BlockStatement { }
+
+      interface PartialStatement extends Statement {
+          name: PathExpression | SubExpression;
+          params: Expression[];
+          hash: Hash;
+          indent: string;
+          strip: StripFlags;
+      }
+
+      interface PartialBlockStatement extends Statement {
+          name: PathExpression | SubExpression;
+          params: Expression[];
+          hash: Hash;
+          program: Program;
+          openStrip: StripFlags;
+          closeStrip: StripFlags;
+      }
+
+      interface ContentStatement extends Statement {
+          value: string;
+          original: StripFlags;
+      }
+
+      interface CommentStatement extends Statement {
+          value: string;
+          strip: StripFlags;
+      }
+
+      interface Expression extends Node {}
+
+      interface SubExpression extends Expression {
+          path: PathExpression;
+          params: Expression[];
+          hash: Hash;
+      }
+
+      interface PathExpression extends Expression {
+          data: boolean;
+          depth: number;
+          parts: string[];
+          original: string;
+      }
+
+      interface Literal extends Expression {}
+      interface StringLiteral extends Literal {
+          value: string;
+          original: string;
+      }
+
+      interface BooleanLiteral extends Literal {
+          value: boolean;
+          original: boolean;
+      }
+
+      interface NumberLiteral extends Literal {
+          value: number;
+          original: number;
+      }
+
+      interface UndefinedLiteral extends Literal {}
+
+      interface NullLiteral extends Literal {}
+
+      interface Hash extends Node {
+          pairs: HashPair[];
+      }
+
+      interface HashPair extends Node {
+          key: string;
+          value: Expression;
+      }
+
+      interface StripFlags {
+          open: boolean;
+          close: boolean;
+      }
+
+      interface helpers {
+          helperExpression(node: Node): boolean;
+          scopeId(path: PathExpression): boolean;
+          simpleId(path: PathExpression): boolean;
+      }
+  }
+}
+
+declare module "handlebars" {
+  export = Handlebars;
+}
+
+declare module "handlebars/runtime" {
+  export = Handlebars;
+}
diff --git a/package.json b/package.json
index 0da60a10b..8f18bcffe 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
     "webpack-dev-server": "^1.12.1"
   },
   "main": "lib/index.js",
+  "types": "lib/handlebars.d.ts",
   "bin": {
     "handlebars": "bin/handlebars"
   },

From bacd473fe6cce76e16c69e2f7f49139062fffa03 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Jan 2019 01:06:20 +0100
Subject: [PATCH 004/191] chore: fix components/handlebars package.json and
 auto-update on release

---
 components/package.json | 3 ++-
 tasks/version.js        | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/components/package.json b/components/package.json
index 9d9c961e6..a81e45d96 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,5 +1,6 @@
 {
-  "version": "4.0.11",
+  "name": "handlebars",
+  "version": "4.0.12",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/tasks/version.js b/tasks/version.js
index 8bc4d8250..3fe3efab1 100644
--- a/tasks/version.js
+++ b/tasks/version.js
@@ -20,6 +20,7 @@ module.exports = function(grunt) {
     async.each([
         ['lib/handlebars/base.js', (/const VERSION = ['"](.*)['"];/), 'const VERSION = \'' + version + '\';'],
         ['components/bower.json', (/"version":.*/), '"version": "' + version + '",'],
+        ['components/package.json', /"version":.*/, '"version": "' + version + '",'],
         ['components/handlebars.js.nuspec', (/<version>.*<\/version>/), '<version>' + version + '</version>']
       ],
       function(args, callback) {

From edc6220d51139b32c28e51641fadad59a543ae57 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 30 Jan 2019 22:21:44 +0100
Subject: [PATCH 005/191] fix: disallow access to the constructor in templates
 to prevent RCE

This commit fixes a Remote Code Execution (RCE) reported by
npm-security. Access to non-enumerable "constructor"-properties
is now prohibited by the compiled template-code, because this
the first step on the way to creating and execution arbitrary
JavaScript code.
The vulnerability affects systems where an attacker is allowed to
inject templates into the Handlebars setup.
Further details of the attack may be disclosed by npm-security.

Closes #1267
Closes #1495
---
 .../compiler/javascript-compiler.js           |  3 +++
 spec/security.js                              | 23 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 spec/security.js

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 471144dd3..ff98ad9e4 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -13,6 +13,9 @@ JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
   nameLookup: function(parent, name/* , type*/) {
+    if (name === 'constructor') {
+      return ['(', parent, '.propertyIsEnumerable(\'constructor\') ? ', parent, '.constructor : undefined', ')'];
+    }
     if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
       return [parent, '.', name];
     } else {
diff --git a/spec/security.js b/spec/security.js
new file mode 100644
index 000000000..45b96c34b
--- /dev/null
+++ b/spec/security.js
@@ -0,0 +1,23 @@
+describe('security issues', function() {
+    describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
+        it('should not allow constructors to be accessed', function() {
+            shouldCompileTo('{{constructor.name}}', {}, '');
+        });
+
+        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+            shouldCompileTo('{{constructor.name}}', {'constructor': {
+                'name': 'here we go'
+            }}, 'here we go');
+        });
+
+        it('should allow prototype properties that are not constructors', function() {
+            class TestClass {
+                get abc() {
+                    return 'xyz';
+                }
+            }
+            shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
+                new TestClass(), 'xyz');
+        });
+    });
+});

From 2db0d123c8501a7cf67b8252523ac3000c9c028f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 08:42:04 +0100
Subject: [PATCH 006/191] chore: add .idea and yarn-error.log to .gitignore

---
 .gitignore | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.gitignore b/.gitignore
index 3c6d099f1..42b64dde0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ node_modules
 *.sublime-workspace
 npm-debug.log
 sauce_connect.log*
+.idea
+yarn-error.log

From 05e6293bb37979d39d020d233c42756c8132ad0e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 09:53:09 +0100
Subject: [PATCH 007/191] chore: bump version of grunt-saucelabs

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8f18bcffe..379eb2737 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "grunt-contrib-uglify": "^1",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-eslint": "^20.1.0",
-    "grunt-saucelabs": "8.x",
+    "grunt-saucelabs": "9.x",
     "grunt-webpack": "^1.0.8",
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",

From ee3022228b40ae595e1574923362d8a6db0ec2d7 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:04:17 +0100
Subject: [PATCH 008/191] chore: disable sauce-labs

Related to #1497
---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index ce85e9a4a..7542a7ffc 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -228,7 +228,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
+  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 

From 56fc6768d1231e8e4d7cd37ba0ff792a1db82f98 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:14:44 +0100
Subject: [PATCH 009/191] test: run appveyor tests in Node 10

---
 appveyor.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index b67fb4ca5..563aaf93c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,8 +1,7 @@
 # Test against these versions of Node.js
 environment:
   matrix:
-    - nodejs_version: "4"
-    - nodejs_version: "5"
+    - nodejs_version: "10"
 
 platform:
   - x64

From 42841c41a49bf9dc0c9c2eebefd54f35b38d9544 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 30 Jan 2019 22:21:44 +0100
Subject: [PATCH 010/191] fix: disallow access to the constructor in templates
 to prevent RCE

This commit fixes a Remote Code Execution (RCE) reported by
npm-security. Access to non-enumerable "constructor"-properties
is now prohibited by the compiled template-code, because this
the first step on the way to creating and execution arbitrary
JavaScript code.
The vulnerability affects systems where an attacker is allowed to
inject templates into the Handlebars setup.
Further details of the attack may be disclosed by npm-security.

Closes #1267
Closes #1495
---
 .../compiler/javascript-compiler.js           |  3 +++
 spec/security.js                              | 23 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 spec/security.js

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 471144dd3..ff98ad9e4 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -13,6 +13,9 @@ JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
   nameLookup: function(parent, name/* , type*/) {
+    if (name === 'constructor') {
+      return ['(', parent, '.propertyIsEnumerable(\'constructor\') ? ', parent, '.constructor : undefined', ')'];
+    }
     if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
       return [parent, '.', name];
     } else {
diff --git a/spec/security.js b/spec/security.js
new file mode 100644
index 000000000..45b96c34b
--- /dev/null
+++ b/spec/security.js
@@ -0,0 +1,23 @@
+describe('security issues', function() {
+    describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
+        it('should not allow constructors to be accessed', function() {
+            shouldCompileTo('{{constructor.name}}', {}, '');
+        });
+
+        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+            shouldCompileTo('{{constructor.name}}', {'constructor': {
+                'name': 'here we go'
+            }}, 'here we go');
+        });
+
+        it('should allow prototype properties that are not constructors', function() {
+            class TestClass {
+                get abc() {
+                    return 'xyz';
+                }
+            }
+            shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
+                new TestClass(), 'xyz');
+        });
+    });
+});

From c6a8fc1c045b6b7d6fdb94a32b991b2803bff205 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 08:42:04 +0100
Subject: [PATCH 011/191] chore: add .idea and yarn-error.log to .gitignore

---
 .gitignore | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.gitignore b/.gitignore
index 3c6d099f1..42b64dde0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@ node_modules
 *.sublime-workspace
 npm-debug.log
 sauce_connect.log*
+.idea
+yarn-error.log

From dbc50ac7050f030743bc9a1186c1eea521fe1fff Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 09:53:09 +0100
Subject: [PATCH 012/191] chore: bump version of grunt-saucelabs

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8f18bcffe..379eb2737 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "grunt-contrib-uglify": "^1",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-eslint": "^20.1.0",
-    "grunt-saucelabs": "8.x",
+    "grunt-saucelabs": "9.x",
     "grunt-webpack": "^1.0.8",
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",

From f1c8b2e2a2837e77f188e4e6cbadaae0749d5628 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:04:17 +0100
Subject: [PATCH 013/191] chore: disable sauce-labs

Related to #1497
---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index ce85e9a4a..7542a7ffc 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -228,7 +228,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
+  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 

From b02e9a25eea6a8829e5b794f5506d7806d48c73b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:14:44 +0100
Subject: [PATCH 014/191] test: run appveyor tests in Node 10

---
 appveyor.yml | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/appveyor.yml b/appveyor.yml
index b67fb4ca5..563aaf93c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,8 +1,7 @@
 # Test against these versions of Node.js
 environment:
   matrix:
-    - nodejs_version: "4"
-    - nodejs_version: "5"
+    - nodejs_version: "10"
 
 platform:
   - x64

From 7bd34fb4662c69a86e654311ff317f5710c9c11e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:46:01 +0100
Subject: [PATCH 015/191] Update release notes

---
 release-notes.md | 39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 8af103799..5b54c5e73 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,44 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...master)
+
+## v4.1.0 - February 7th, 2019
+New Features
+
+- import TypeScript typings - 27ac1ee
+
+Security fixes:
+
+- disallow access to the constructor in templates to prevent RCE - 42841c4, #1495
+
+Housekeeping
+
+- chore: fix components/handlebars package.json and auto-update on release - bacd473
+- chore: Use node 10 to build handlebars - 78dd89c
+- chore/doc: Add more release docs - 6b87c21
+
+Compatibility notes:
+
+Access to class constructors (i.e. `({}).constructor`) is now prohibited to prevent
+Remote Code Execution. This means that following construct will no work anymore:
+
+```
+class SomeClass {
+}
+
+SomeClass.staticProperty = 'static'
+
+var template = Handlebars.compile('{{constructor.staticProperty}}');
+document.getElementById('output').innerHTML = template(new SomeClass());
+// expected: 'static', but now this is empty.
+```
+
+This kind of access is not the intended use of Handlebars and leads to the vulnerability described in #1495. We will **not** increase the major version, because such use is not intended or documented, and because of the potential impact of the issue (we fear that most people won't use a new major version and the issue may not be resolved on many systems).
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.1.0)
 
 ## v4.0.12 - September 4th, 2018
 New features:

From 7caca944b1ae64b5bc11cba67d21e4b51ba6196a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 7 Feb 2019 10:46:32 +0100
Subject: [PATCH 016/191] v4.1.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 2bf984f20..af87b72af 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.0.12",
+  "version": "4.1.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index bb463ce5f..a4740212a 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.0.12</version>
+		<version>4.1.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index a81e45d96..7013be4a4 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.0.12",
+  "version": "4.1.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 127be4b7e..22307b9da 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.0.12';
+export const VERSION = '4.1.0';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index 379eb2737..de4efbf87 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.0.12",
+  "version": "4.1.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From b92589a3b0b6e9f29413b1ec0fdaf715c35ef71f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 17 Feb 2019 22:03:15 +0100
Subject: [PATCH 017/191] test: add test for NodeJS compatibility

The test is a simple addition to the existing tests. It should ensure
that the built Handlebars artifact only uses language features that are
available in old versions of NodeJS. A simple program and the
precompiler are started with NodeJS 0.10 to 11
---
 .travis.yml                         |   1 +
 Gruntfile.js                        |   3 +-
 multi-nodejs-test/.eslintrc.js      | 114 ++++++++++++++++++++++++++++
 multi-nodejs-test/expected.txt      |   1 +
 multi-nodejs-test/run-handlebars.js |  13 ++++
 multi-nodejs-test/run-tests.sh      |  21 +++++
 multi-nodejs-test/template.txt.hbs  |   1 +
 7 files changed, 153 insertions(+), 1 deletion(-)
 create mode 100644 multi-nodejs-test/.eslintrc.js
 create mode 100644 multi-nodejs-test/expected.txt
 create mode 100755 multi-nodejs-test/run-handlebars.js
 create mode 100755 multi-nodejs-test/run-tests.sh
 create mode 100644 multi-nodejs-test/template.txt.hbs

diff --git a/.travis.yml b/.travis.yml
index ce9690a9c..b8c200dd2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,7 @@ before_install:
 - npm install -g grunt-cli
 script:
 - grunt --stack travis
+- multi-nodejs-test/run-tests.sh 0.10 0.12 4 5 6 7 8 9 10 11
 email:
   on_failure: change
   on_success: never
diff --git a/Gruntfile.js b/Gruntfile.js
index 7542a7ffc..ff89c737d 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -12,7 +12,8 @@ module.exports = function(grunt) {
         'bench/**/*.js',
         'tasks/**/*.js',
         'lib/**/!(*.min|parser).js',
-        'spec/**/!(*.amd|json2|require).js'
+        'spec/**/!(*.amd|json2|require).js',
+        'multi-nodejs-test/*.js'
       ]
     },
 
diff --git a/multi-nodejs-test/.eslintrc.js b/multi-nodejs-test/.eslintrc.js
new file mode 100644
index 000000000..6d3592c7b
--- /dev/null
+++ b/multi-nodejs-test/.eslintrc.js
@@ -0,0 +1,114 @@
+module.exports = {
+  "extends": "eslint:recommended",
+  "globals": {
+    "self": false
+  },
+  "env": {
+    "node": true
+  },
+  "rules": {
+    // overrides eslint:recommended defaults
+    "no-sparse-arrays": "off",
+    "no-func-assign": "off",
+    "no-console": "off",
+    "no-debugger": "warn",
+    "no-unreachable": "warn",
+
+    // Possible Errors //
+    //-----------------//
+    "no-unsafe-negation": "error",
+
+
+    // Best Practices //
+    //----------------//
+    "curly": "error",
+    "default-case": "warn",
+    "dot-notation": ["error", { "allowKeywords": false }],
+    "guard-for-in": "warn",
+    "no-alert": "error",
+    "no-caller": "error",
+    "no-div-regex": "warn",
+    "no-eval": "error",
+    "no-extend-native": "error",
+    "no-extra-bind": "error",
+    "no-floating-decimal": "error",
+    "no-implied-eval": "error",
+    "no-iterator": "error",
+    "no-labels": "error",
+    "no-lone-blocks": "error",
+    "no-loop-func": "error",
+    "no-multi-spaces": "error",
+    "no-multi-str": "warn",
+    "no-global-assign": "error",
+    "no-new": "error",
+    "no-new-func": "error",
+    "no-new-wrappers": "error",
+    "no-octal-escape": "error",
+    "no-process-env": "error",
+    "no-proto": "error",
+    "no-return-assign": "error",
+    "no-script-url": "error",
+    "no-self-compare": "error",
+    "no-sequences": "error",
+    "no-throw-literal": "error",
+    "no-unused-expressions": "error",
+    "no-warning-comments": "warn",
+    "no-with": "error",
+    "radix": "error",
+    "wrap-iife": "error",
+
+
+    // Variables //
+    //-----------//
+    "no-catch-shadow": "error",
+    "no-label-var": "error",
+    "no-shadow-restricted-names": "error",
+    "no-undef-init": "error",
+    "no-use-before-define": ["error", "nofunc"],
+
+
+    // Stylistic Issues //
+    //------------------//
+    "comma-dangle": ["error", "never"],
+    "quote-props": ["error", "as-needed", { "keywords": true, "unnecessary": false }],
+    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
+    "camelcase": "error",
+    "comma-spacing": ["error", { "before": false, "after": true }],
+    "comma-style": ["error", "last"],
+    "consistent-this": ["warn", "self"],
+    "eol-last": "error",
+    "func-style": ["error", "declaration"],
+    "key-spacing": ["error", {
+      "beforeColon": false,
+      "afterColon": true
+    }],
+    "new-cap": "error",
+    "new-parens": "error",
+    "no-array-constructor": "error",
+    "no-lonely-if": "error",
+    "no-mixed-spaces-and-tabs": "error",
+    "no-nested-ternary": "warn",
+    "no-new-object": "error",
+    "no-spaced-func": "error",
+    "no-trailing-spaces": "error",
+    "no-extra-parens": ["error", "functions"],
+    "quotes": ["error", "single", "avoid-escape"],
+    "semi": "error",
+    "semi-spacing": ["error", { "before": false, "after": true }],
+    "keyword-spacing": "error",
+    "space-before-blocks": ["error", "always"],
+    "space-before-function-paren": ["error", { "anonymous": "never", "named": "never" }],
+    "space-in-parens": ["error", "never"],
+    "space-infix-ops": "error",
+    "space-unary-ops": "error",
+    "spaced-comment": ["error", "always", { "markers": [","] }],
+    "wrap-regex": "warn",
+
+    // ECMAScript 6 //
+    //--------------//
+    "no-var": "off"
+  },
+  "parserOptions": {
+    "sourceType": "module"
+  }
+}
\ No newline at end of file
diff --git a/multi-nodejs-test/expected.txt b/multi-nodejs-test/expected.txt
new file mode 100644
index 000000000..19a4be2d7
--- /dev/null
+++ b/multi-nodejs-test/expected.txt
@@ -0,0 +1 @@
+Author: Yehuda
diff --git a/multi-nodejs-test/run-handlebars.js b/multi-nodejs-test/run-handlebars.js
new file mode 100755
index 000000000..58bc8d495
--- /dev/null
+++ b/multi-nodejs-test/run-handlebars.js
@@ -0,0 +1,13 @@
+// This test should run with node 0.10 as long as Handlebars has been compiled before
+var Handlebars = require('../');
+var fs = require('fs');
+
+console.log('Testing build Handlebars with Node version ' + process.version);
+var template = fs.readFileSync(require.resolve('./template.txt.hbs'), 'utf-8');
+var compiledOutput = Handlebars.compile(template)({author: 'Yehuda'}).trim();
+var expectedOutput = fs.readFileSync(require.resolve('./expected.txt'), 'utf-8').trim();
+
+if (compiledOutput !== expectedOutput) {
+    throw new Error('Compiled output (' + compiledOutput + ') did not match expected output (' + expectedOutput + ')');
+}
+console.log('Success');
diff --git a/multi-nodejs-test/run-tests.sh b/multi-nodejs-test/run-tests.sh
new file mode 100755
index 000000000..174a12ccb
--- /dev/null
+++ b/multi-nodejs-test/run-tests.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+cd "$( dirname "$( readlink -f "$0" )" )"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+# This script tests with precompiler and the built distribution with multiple NodeJS version.
+# The rest of the travis-build will only work with newer NodeJS versions, because the build
+# tools don't support older versions.
+# However, the built distribution should work with older NodeJS versions as well.
+# This test is simple by design. It merely ensures, that calling Handlebars does not fail with old versions.
+# It does (almost) not test for correctness, because that is already done in the mocha-tests.
+# And it does not use any NodeJS based testing framwork to make this part independent of the Node version.
+
+# A list of NodeJS versions is expected as cli-args
+echo "Handlebars should be able to run in various versions of NodeJS"
+for i in "$@" ; do
+    nvm install "$i"
+    nvm exec "$i" node ./run-handlebars.js >/dev/null || exit 1
+    nvm exec "$i" node ../bin/handlebars template.txt.hbs >/dev/null || exit 1
+    echo Success
+done
\ No newline at end of file
diff --git a/multi-nodejs-test/template.txt.hbs b/multi-nodejs-test/template.txt.hbs
new file mode 100644
index 000000000..61d4dd7fa
--- /dev/null
+++ b/multi-nodejs-test/template.txt.hbs
@@ -0,0 +1 @@
+Author: {{author}} 

From 048f2ce7d21c556fc7253ff014079597219c01fd Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 16 Feb 2019 22:15:37 +0100
Subject: [PATCH 018/191] refactor: replace "async" with "neo-async"

The main reason is that neo-async takes a lot less space due to the missing lodash-dependency.
The other is speed.

closes #1431
---
 bench/dist-size.js | 2 +-
 lib/precompiler.js | 2 +-
 package.json       | 2 +-
 tasks/metrics.js   | 2 +-
 tasks/publish.js   | 4 ++--
 tasks/version.js   | 2 +-
 6 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/bench/dist-size.js b/bench/dist-size.js
index 9176054d5..d0bd24892 100644
--- a/bench/dist-size.js
+++ b/bench/dist-size.js
@@ -1,4 +1,4 @@
-var async = require('async'),
+var async = require('neo-async'),
     fs = require('fs'),
     zlib = require('zlib');
 
diff --git a/lib/precompiler.js b/lib/precompiler.js
index ab3eb201d..ecf264eff 100644
--- a/lib/precompiler.js
+++ b/lib/precompiler.js
@@ -1,5 +1,5 @@
 /* eslint-disable no-console */
-import Async from 'async';
+import Async from 'neo-async';
 import fs from 'fs';
 import * as Handlebars from './handlebars';
 import {basename} from 'path';
diff --git a/package.json b/package.json
index de4efbf87..87b4e8423 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "node": ">=0.4.7"
   },
   "dependencies": {
-    "async": "^2.5.0",
+    "neo-async": "^2.6.0",
     "optimist": "^0.6.1",
     "source-map": "^0.6.1"
   },
diff --git a/tasks/metrics.js b/tasks/metrics.js
index b04967dd0..a1fa5c95a 100644
--- a/tasks/metrics.js
+++ b/tasks/metrics.js
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    async = require('async'),
+    async = require('neo-async'),
     metrics = require('../bench');
 
 module.exports = function(grunt) {
diff --git a/tasks/publish.js b/tasks/publish.js
index 38039c6d4..c3729596b 100644
--- a/tasks/publish.js
+++ b/tasks/publish.js
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    async = require('async'),
+    async = require('neo-async'),
     AWS = require('aws-sdk'),
     git = require('./util/git'),
     semver = require('semver');
@@ -66,7 +66,7 @@ module.exports = function(grunt) {
     var s3 = new AWS.S3(),
         bucket = process.env.S3_BUCKET_NAME;
 
-    async.forEach(_.keys(files), function(file, callback) {
+    async.each(_.keys(files), function(file, callback) {
         var params = {Bucket: bucket, Key: file, Body: grunt.file.read(files[file])};
         s3.putObject(params, function(err) {
           if (err) {
diff --git a/tasks/version.js b/tasks/version.js
index 3fe3efab1..05f703419 100644
--- a/tasks/version.js
+++ b/tasks/version.js
@@ -1,4 +1,4 @@
-var async = require('async'),
+var async = require('neo-async'),
     git = require('./util/git'),
     semver = require('semver');
 

From b2e2cfe56d844a351e763bba8b04c2571bba3380 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 19 Feb 2019 10:31:42 +0100
Subject: [PATCH 019/191] chore: re-activate saucelabs

---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index ff89c737d..838e7b395 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -229,7 +229,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
+  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 

From 40fb115e537e49f0fc8c95aa529cacfa0ff7cbe9 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 19 Feb 2019 10:49:24 +0100
Subject: [PATCH 020/191] Revert "chore: re-activate saucelabs"

This reverts commit b2e2cfe56d844a351e763bba8b04c2571bba3380.
---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 838e7b395..ff89c737d 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -229,7 +229,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
+  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 

From 5cedd62d7b6da77fb6b86fe7e2579ce27100a560 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 22 Feb 2019 00:30:51 +0100
Subject: [PATCH 021/191] fix: add "runtime.d.ts" to allow
 "require('handlebars/runtime')"

see #1499
---
 runtime.d.ts | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 runtime.d.ts

diff --git a/runtime.d.ts b/runtime.d.ts
new file mode 100644
index 000000000..0d5105eb7
--- /dev/null
+++ b/runtime.d.ts
@@ -0,0 +1,5 @@
+import Handlebars = require('handlebars')
+
+declare module "handlebars/runtime" {
+   
+}
\ No newline at end of file

From 445ae12fa473ec5b0d54483b679736ed70bab5a3 Mon Sep 17 00:00:00 2001
From: Qiang Li <qiang@sumologic.com>
Date: Tue, 26 Feb 2019 00:18:18 -0800
Subject: [PATCH 022/191] deprecate substr method and use existing strip
 function in grammar

---
 lib/handlebars/compiler/helpers.js | 2 +-
 src/handlebars.l                   | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/handlebars/compiler/helpers.js b/lib/handlebars/compiler/helpers.js
index 432df877c..f26b4e15c 100644
--- a/lib/handlebars/compiler/helpers.js
+++ b/lib/handlebars/compiler/helpers.js
@@ -24,7 +24,7 @@ export function SourceLocation(source, locInfo) {
 
 export function id(token) {
   if (/^\[.*\]$/.test(token)) {
-    return token.substr(1, token.length - 2);
+    return token.substring(1, token.length - 1);
   } else {
     return token;
   }
diff --git a/src/handlebars.l b/src/handlebars.l
index e9de1029b..90acffec0 100644
--- a/src/handlebars.l
+++ b/src/handlebars.l
@@ -4,7 +4,7 @@
 %{
 
 function strip(start, end) {
-  return yytext = yytext.substr(start, yyleng-end);
+  return yytext = yytext.substring(start, yyleng - end + start);
 }
 
 %}
@@ -59,7 +59,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                   if (this.conditionStack[this.conditionStack.length-1] === 'raw') {
                                     return 'CONTENT';
                                   } else {
-                                    yytext = yytext.substr(5, yyleng-9);
+                                    strip(5, 9);
                                     return 'END_RAW_BLOCK';
                                   }
                                  }

From 7840ab66a5cf754e2325ce269c0134ad8aff5b6b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 15 Mar 2019 22:39:36 +0100
Subject: [PATCH 023/191] test: make security testcase internet explorer
 compatible

Internet Explorer does not support the 'class Testclass {}' notation,
and tests are not compiled using babel.

closes #1497
---
 spec/security.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/spec/security.js b/spec/security.js
index 45b96c34b..12b96e629 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -11,11 +11,16 @@ describe('security issues', function() {
         });
 
         it('should allow prototype properties that are not constructors', function() {
-            class TestClass {
-                get abc() {
+            function TestClass() {
+            }
+
+            Object.defineProperty(TestClass.prototype, 'abc', {
+                get: function() {
                     return 'xyz';
                 }
-            }
+
+            });
+
             shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
                 new TestClass(), 'xyz');
         });

From 684f1032c62758d1cb548d4ff9e7582a6554d313 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 15 Mar 2019 22:49:36 +0100
Subject: [PATCH 024/191] chore: reactivate saucelabs-tests

---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index ff89c737d..838e7b395 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -229,7 +229,7 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', [] /* process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : [] */);
+  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
 
   grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 

From e5c39375ac423bf752cd1c5b99affce23b528c4d Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 16 Mar 2019 22:24:34 +0100
Subject: [PATCH 025/191] Update release notes

---
 release-notes.md | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 5b54c5e73..15ac15539 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,21 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...master)
+
+## v4.1.1 - March 16th, 2019
+Bugfixes:
+- fix: add "runtime.d.ts" to allow "require('handlebars/runtime')" in TypeScript - 5cedd62
+
+Refactorings:
+- replace "async" with "neo-async" - 048f2ce
+- use "substring"-function instead of "substr" - 445ae12
+
+Compatibility notes:
+- This is a bugfix release. There are no breaking change and no new features.
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.1)
 
 ## v4.1.0 - February 7th, 2019
 New Features

From 25b2e11dd9b40f0d4437855174bfab184edfb4cc Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 16 Mar 2019 22:28:03 +0100
Subject: [PATCH 026/191] Update release notes

---
 release-notes.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/release-notes.md b/release-notes.md
index 15ac15539..10b6455de 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -16,6 +16,20 @@ Compatibility notes:
 - This is a bugfix release. There are no breaking change and no new features.
 
 
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...v4.1.1)
+
+## v4.1.1 - March 16th, 2019
+Bugfixes:
+- fix: add "runtime.d.ts" to allow "require('handlebars/runtime')" in TypeScript - 5cedd62
+
+Refactorings:
+- replace "async" with "neo-async" - 048f2ce
+- use "substring"-function instead of "substr" - 445ae12
+
+Compatibility notes:
+- This is a bugfix release. There are no breaking change and no new features.
+
+
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.1)
 
 ## v4.1.0 - February 7th, 2019

From f691db546e7563e1db3437d5a72f478f9e556714 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 16 Mar 2019 22:28:38 +0100
Subject: [PATCH 027/191] v4.1.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index af87b72af..ffd98e358 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index a4740212a..e6a38c6f2 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.1.0</version>
+		<version>4.1.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 7013be4a4..ced91e119 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 22307b9da..a1278d1e5 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.1.0';
+export const VERSION = '4.1.1';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index 87b4e8423..edf11b7c2 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 3fb668701363fe85eef7dd8b8fc3e451ae8bd0b9 Mon Sep 17 00:00:00 2001
From: Timothy Lindvall <tlindvall@linkedin.com>
Date: Tue, 19 Mar 2019 16:07:05 -0700
Subject: [PATCH 028/191] Port over linting and test for typings

- Move typings from lib/ to types/.
- Add dtslint for validating types.
- Use grunt-bg-shell to call out to dtslint during build step.
---
 Gruntfile.js                            | 10 +++
 package.json                            |  8 ++-
 lib/handlebars.d.ts => types/index.d.ts |  3 +-
 types/test.ts                           | 91 +++++++++++++++++++++++++
 types/tsconfig.json                     | 16 +++++
 types/tslint.json                       | 79 +++++++++++++++++++++
 6 files changed, 204 insertions(+), 3 deletions(-)
 rename lib/handlebars.d.ts => types/index.d.ts (98%)
 create mode 100644 types/test.ts
 create mode 100644 types/tsconfig.json
 create mode 100644 types/tslint.json

diff --git a/Gruntfile.js b/Gruntfile.js
index 838e7b395..738a8c792 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -187,6 +187,14 @@ module.exports = function(grunt) {
       }
     },
 
+    bgShell: {
+      checkTypes: {
+        cmd: 'npm run checkTypes',
+        bg: false,
+        fail: true
+      }
+    },
+
     watch: {
       scripts: {
         options: {
@@ -202,6 +210,7 @@ module.exports = function(grunt) {
   // Build a new version of the library
   this.registerTask('build', 'Builds a distributable version of the current project', [
                     'eslint',
+                    'bgShell:checkTypes',
                     'parser',
                     'node',
                     'globals']);
@@ -222,6 +231,7 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-contrib-uglify');
   grunt.loadNpmTasks('grunt-contrib-watch');
   grunt.loadNpmTasks('grunt-babel');
+  grunt.loadNpmTasks('grunt-bg-shell');
   grunt.loadNpmTasks('grunt-eslint');
   grunt.loadNpmTasks('grunt-saucelabs');
   grunt.loadNpmTasks('grunt-webpack');
diff --git a/package.json b/package.json
index edf11b7c2..de504a42a 100644
--- a/package.json
+++ b/package.json
@@ -33,10 +33,12 @@
     "babel-loader": "^5.0.0",
     "babel-runtime": "^5.1.10",
     "benchmark": "~1.0",
+    "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
     "grunt": "^1.0.3",
     "grunt-babel": "^5.0.0",
+    "grunt-bg-shell": "^2.3.3",
     "grunt-cli": "^1",
     "grunt-contrib-clean": "^1",
     "grunt-contrib-concat": "^1",
@@ -59,11 +61,12 @@
     "webpack-dev-server": "^1.12.1"
   },
   "main": "lib/index.js",
-  "types": "lib/handlebars.d.ts",
+  "types": "types/index.d.ts",
   "bin": {
     "handlebars": "bin/handlebars"
   },
   "scripts": {
+    "checkTypes": "dtslint types",
     "test": "grunt"
   },
   "jspm": {
@@ -83,6 +86,7 @@
     "lib",
     "print-script",
     "release-notes.md",
-    "runtime.js"
+    "runtime.js",
+    "types/*.d.ts"
   ]
 }
diff --git a/lib/handlebars.d.ts b/types/index.d.ts
similarity index 98%
rename from lib/handlebars.d.ts
rename to types/index.d.ts
index 181ef2ff5..237bfa580 100644
--- a/lib/handlebars.d.ts
+++ b/types/index.d.ts
@@ -8,8 +8,9 @@
  *   - Sergei Dorogin <https://github.com/evil-shrike>
  *   - webbiesdk <https://github.com/webbiesdk>
  * For full history prior to their migration to handlebars.js, please see:
- * https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/handlebars
+ * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/index.d.ts
  */
+// TypeScript Version: 2.3
 
 declare namespace Handlebars {
   export interface TemplateDelegate<T = any> {
diff --git a/types/test.ts b/types/test.ts
new file mode 100644
index 000000000..fd0b7bb1b
--- /dev/null
+++ b/types/test.ts
@@ -0,0 +1,91 @@
+/* These test cases were imported from https://github.com/DefinitelyTyped/DefinitelyTyped
+ * and includes previous contributions from the DefinitelyTyped community.
+ * For full history prior to their migration to handlebars.js, please see:
+ * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/handlebars-tests.ts
+ */
+
+import * as Handlebars from 'handlebars';
+
+const context = {
+  author: { firstName: 'Alan', lastName: 'Johnson' },
+  body: 'I Love Handlebars',
+  comments: [{
+    author: { firstName: 'Yehuda', lastName: 'Katz' },
+    body: 'Me too!'
+  }]
+};
+Handlebars.registerHelper('fullName', (person: typeof context.author) => {
+  return person.firstName + ' ' + person.lastName;
+});
+
+Handlebars.registerHelper('agree_button', function(this: any) {
+  return new Handlebars.SafeString(
+    '<button>I agree. I ' + this.emotion + ' ' + this.name + '</button>'
+  );
+});
+
+const source1 = '<p>Hello, my name is {{name}}. I am from {{hometown}}. I have ' +
+                '{{kids.length}} kids:</p>' +
+                '<ul>{{#kids}}<li>{{name}} is {{age}}</li>{{/kids}}</ul>';
+const template1 = Handlebars.compile(source1);
+template1({ name: "Alan", hometown: "Somewhere, TX", kids: [{name: "Jimmy", age: 12}, {name: "Sally", age: 4}]});
+
+Handlebars.registerHelper('link_to', (context: typeof post) => {
+  return '<a href="' + context.url + '">' + context.body + '</a>';
+});
+const post = { url: "/hello-world", body: "Hello World!" };
+const context2 = { posts: [post] };
+const source2 = '<ul>{{#posts}}<li>{{{link_to this}}}</li>{{/posts}}</ul>';
+const template2: HandlebarsTemplateDelegate<{ posts: { url: string, body: string }[] }> = Handlebars.compile(source2);
+template2(context2);
+
+Handlebars.registerHelper('link_to', (title: string, context: typeof post) => {
+  return '<a href="/posts' + context.url + '">' + title + '!</a>';
+});
+const context3 = { posts: [{url: '/hello-world', body: 'Hello World!'}] };
+const source3 = '<ul>{{#posts}}<li>{{{link_to "Post" this}}}</li>{{/posts}}</ul>';
+const template3 = Handlebars.compile<typeof context3>(source3);
+template3(context3);
+
+const source4 = '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>';
+Handlebars.registerHelper('link', function(this: any, context: any) {
+  return '<a href="/people/' + this.id + '">' + context.fn(this) + '</a>';
+});
+const template4 = Handlebars.compile<{ people: { name: string, id: number }[] }>(source4);
+const data2 = { 'people': [
+    { 'name': 'Alan', 'id': 1 },
+    { 'name': 'Yehuda', 'id': 2 }
+]};
+template4(data2);
+
+const source5 = '<ul>{{#people}}<li>{{> link}}</li>{{/people}}</ul>';
+Handlebars.registerPartial('link', '<a href="/people/{{id}}">{{name}}</a>');
+const template5 = Handlebars.compile(source5);
+const data3 = { 'people': [
+    { 'name': 'Alan', 'id': 1 },
+    { 'name': 'Yehuda', 'id': 2 }
+]};
+template5(data3);
+
+const source6 = '{{#list nav}}<a href="{{url}}">{{title}}</a>{{/list}}';
+const template6 = Handlebars.compile(source6);
+Handlebars.registerHelper('list', (context, options: Handlebars.HelperOptions) => {
+  let ret = "<ul>";
+  for(let i=0, j=context.length; i<j; i++) {
+    ret = ret + "<li>" + options.fn(context[i]) + "</li>";
+  }
+  return ret + "</ul>";
+});
+template6([{url:"", title:""}])
+
+
+const escapedExpression = Handlebars.Utils.escapeExpression('<script>alert(\'xss\');</script>');
+
+Handlebars.helpers !== undefined;
+
+const parsedTmpl = Handlebars.parse('<p>Hello, my name is {{name}}.</p>', {
+  srcName: "/foo/bar/baz.hbs",
+  ignoreStandalone: true
+});
+
+const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}.</p>');
\ No newline at end of file
diff --git a/types/tsconfig.json b/types/tsconfig.json
new file mode 100644
index 000000000..86328ebb1
--- /dev/null
+++ b/types/tsconfig.json
@@ -0,0 +1,16 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": ["es6"],
+    "noImplicitAny": true,
+    "noImplicitThis": true,
+    "strictNullChecks": true,
+    "strictFunctionTypes": true,
+    "noEmit": true,
+
+    "baseUrl": ".",
+    "paths": {
+      "handlebars": ["."]
+    }
+  }
+}
\ No newline at end of file
diff --git a/types/tslint.json b/types/tslint.json
new file mode 100644
index 000000000..a484bf6b0
--- /dev/null
+++ b/types/tslint.json
@@ -0,0 +1,79 @@
+{
+  "extends": "dtslint/dtslint.json",
+  "rules": {
+    "adjacent-overload-signatures": false,
+    "array-type": false,
+    "arrow-return-shorthand": false,
+    "ban-types": false,
+    "callable-types": false,
+    "comment-format": false,
+    "dt-header": false,
+    "eofline": false,
+    "export-just-namespace": false,
+    "import-spacing": false,
+    "interface-name": false,
+    "interface-over-type-literal": false,
+    "jsdoc-format": false,
+    "max-line-length": false,
+    "member-access": false,
+    "new-parens": false,
+    "no-any-union": false,
+    "no-boolean-literal-compare": false,
+    "no-conditional-assignment": false,
+    "no-consecutive-blank-lines": false,
+    "no-construct": false,
+    "no-declare-current-package": false,
+    "no-duplicate-imports": false,
+    "no-duplicate-variable": false,
+    "no-empty-interface": false,
+    "no-for-in-array": false,
+    "no-inferrable-types": false,
+    "no-internal-module": false,
+    "no-irregular-whitespace": false,
+    "no-mergeable-namespace": false,
+    "no-misused-new": false,
+    "no-namespace": false,
+    "no-object-literal-type-assertion": false,
+    "no-padding": false,
+    "no-redundant-jsdoc": false,
+    "no-redundant-jsdoc-2": false,
+    "no-redundant-undefined": false,
+    "no-reference-import": false,
+    "no-relative-import-in-test": false,
+    "no-self-import": false,
+    "no-single-declare-module": false,
+    "no-string-throw": false,
+    "no-unnecessary-callback-wrapper": false,
+    "no-unnecessary-class": false,
+    "no-unnecessary-generics": false,
+    "no-unnecessary-qualifier": false,
+    "no-unnecessary-type-assertion": false,
+    "no-useless-files": false,
+    "no-var-keyword": false,
+    "no-var-requires": false,
+    "no-void-expression": false,
+    "no-trailing-whitespace": false,
+    "object-literal-key-quotes": false,
+    "object-literal-shorthand": false,
+    "one-line": false,
+    "one-variable-per-declaration": false,
+    "only-arrow-functions": false,
+    "prefer-conditional-expression": false,
+    "prefer-const": false,
+    "prefer-declare-function": false,
+    "prefer-for-of": false,
+    "prefer-method-signature": false,
+    "prefer-template": false,
+    "radix": false,
+    "semicolon": false,
+    "space-before-function-paren": false,
+    "space-within-parens": false,
+    "strict-export-declare-modifiers": false,
+    "trim-file": false,
+    "triple-equals": false,
+    "typedef-whitespace": false,
+    "unified-signatures": false,
+    "void-return": false,
+    "whitespace": false
+  }
+}
\ No newline at end of file

From 002561be948f79965d7355038ad344ae0a000f38 Mon Sep 17 00:00:00 2001
From: Phil Davis <phil@jankaritech.com>
Date: Wed, 20 Mar 2019 18:10:47 +0545
Subject: [PATCH 029/191] Revert "Update release notes"

This reverts commit 25b2e11dd9b40f0d4437855174bfab184edfb4cc.
---
 release-notes.md | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 10b6455de..15ac15539 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -16,20 +16,6 @@ Compatibility notes:
 - This is a bugfix release. There are no breaking change and no new features.
 
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...v4.1.1)
-
-## v4.1.1 - March 16th, 2019
-Bugfixes:
-- fix: add "runtime.d.ts" to allow "require('handlebars/runtime')" in TypeScript - 5cedd62
-
-Refactorings:
-- replace "async" with "neo-async" - 048f2ce
-- use "substring"-function instead of "substr" - 445ae12
-
-Compatibility notes:
-- This is a bugfix release. There are no breaking change and no new features.
-
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.1)
 
 ## v4.1.0 - February 7th, 2019

From be442462214d37d14bf9a909644d0c4455c0771d Mon Sep 17 00:00:00 2001
From: Phil Davis <phil@jankaritech.com>
Date: Wed, 20 Mar 2019 18:19:30 +0545
Subject: [PATCH 030/191] Remove triplicate of v4.0.12 release notes

---
 release-notes.md | 58 ------------------------------------------------
 1 file changed, 58 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 15ac15539..83eee15e1 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -82,64 +82,6 @@ Removed obsolete code:
 Compatibility notes:
 - No compatibility issues are to be expected
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.0.12)
-
-## v4.0.12 - September 4th, 2018
-New features:
-
-- none
-
-Various dependency updates
-
-- [#1464](https://github.com/wycats/handlebars.js/pull/1464) - Bump versions of grunt-plugins to 1.x
-- [#1398](https://github.com/wycats/handlebars.js/pull/1398) - Chore: updated various dev dependencies
-- upgrade uglify-js - d3d3942
-- Update grunt-eslint to 20.1.0 - 7729aa9
-- Update dependencies "async" to 2.5.0 and "source-map" to 0.6.1 (73d5637)
-
-Bugfixes:
-
-- [components/handlebars.js#24](https://github.com/components/handlebars.js#24) Add package.json to components shim
-- Updated `source-map`-package should work better with `rollup`[#1463](https://github.com/wycats/handlebars.js/issues/1463)
-
-Removed obsolete code:
-
-- unnecessary check - 0ddff8b
-- Use `files` field - 69c6ca5
-- Update jsfiddle to 4.0.11 - 8947dd0
-
-Compatibility notes:
-- No compatibility issues are to be expected
-
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.0.12)
-
-## v4.0.12 - September 4th, 2018
-New features:
-
-- none
-
-Various dependency updates
-
-- [#1464](https://github.com/wycats/handlebars.js/pull/1464) - Bump versions of grunt-plugins to 1.x
-- [#1398](https://github.com/wycats/handlebars.js/pull/1398) - Chore: updated various dev dependencies
-- upgrade uglify-js - d3d3942
-- Update grunt-eslint to 20.1.0 - 7729aa9
-- Update dependencies "async" to 2.5.0 and "source-map" to 0.6.1 (73d5637)
-
-Bugfixes:
-
-- [components/handlebars.js#24](https://github.com/components/handlebars.js#24) Add package.json to components shim
-- Updated `source-map`-package should work better with `rollup`[#1463](https://github.com/wycats/handlebars.js/issues/1463)
-
-Removed obsolete code:
-
-- unnecessary check - 0ddff8b
-- Use `files` field - 69c6ca5
-- Update jsfiddle to 4.0.11 - 8947dd0
-
-Compatibility notes:
-- No compatibility issues are to be expected
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.11...v4.0.12)
 
 ## v4.0.11 - October 17th, 2017

From cd38583216dce3252831916323202749431c773e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 11 Apr 2019 17:46:27 +0200
Subject: [PATCH 031/191] fix: prevent RCE through the "lookup"-helper

- The "lookup" helper could also be used to run a remote code execution
  by manipulating the template. The same check as for regular
  path queries now also is done in the "lookup"-helper
---
 lib/handlebars/helpers/lookup.js | 8 +++++++-
 spec/security.js                 | 7 +++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index a52e77a04..dcd585178 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -1,5 +1,11 @@
 export default function(instance) {
   instance.registerHelper('lookup', function(obj, field) {
-    return obj && obj[field];
+    if (!obj) {
+      return obj;
+    }
+    if (field === 'constructor' && !obj.propertyIsEnumerable(field)) {
+      return undefined;
+    }
+    return obj[field];
   });
 }
diff --git a/spec/security.js b/spec/security.js
index 12b96e629..4a7d83773 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -2,12 +2,16 @@ describe('security issues', function() {
     describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
         it('should not allow constructors to be accessed', function() {
             shouldCompileTo('{{constructor.name}}', {}, '');
+            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {}, '');
         });
 
         it('should allow the "constructor" property to be accessed if it is enumerable', function() {
             shouldCompileTo('{{constructor.name}}', {'constructor': {
                 'name': 'here we go'
             }}, 'here we go');
+            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {'constructor': {
+                'name': 'here we go'
+            }}, 'here we go');
         });
 
         it('should allow prototype properties that are not constructors', function() {
@@ -23,6 +27,9 @@ describe('security issues', function() {
 
             shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
                 new TestClass(), 'xyz');
+            shouldCompileTo('{{#with this as |obj|}}{{lookup obj "abc"}}{{/with}}',
+                new TestClass(), 'xyz');
+
         });
     });
 });

From 871acccbb1409c2864b8dfd69d936878ea3458e3 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 13 Apr 2019 15:55:52 +0200
Subject: [PATCH 032/191] test: remove safari from saucelabs

---
 Gruntfile.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 738a8c792..8fd258601 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -167,8 +167,8 @@ module.exports = function(grunt) {
           browsers: [
             {browserName: 'chrome'},
             {browserName: 'firefox', platform: 'Linux'},
-            {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
-            {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
+            // {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
+            // {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
             {browserName: 'internet explorer', version: 11, platform: 'Windows 8.1'},
             {browserName: 'internet explorer', version: 10, platform: 'Windows 8'}
           ]

From 594f1e30dde4a862ed40a7bad3a5b2db3ed97f3c Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 13 Apr 2019 16:04:43 +0200
Subject: [PATCH 033/191] chore: add missing typescript dependency, add
 package-lock.json

I suspect that the current problems with
saucelabs are due to a change transitive
dependency, but I'm not sure. I'm not
adding the package-lock.json to ensure
that this does not happen in the future.
---
 package-lock.json | 8676 +++++++++++++++++++++++++++++++++++++++++++++
 package.json      |    1 +
 2 files changed, 8677 insertions(+)
 create mode 100644 package-lock.json

diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 000000000..bb74117ea
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,8676 @@
+{
+  "name": "handlebars",
+  "version": "4.1.1",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "@types/parsimmon": {
+      "version": "1.10.0",
+      "resolved": "https://registry.npmjs.org/@types/parsimmon/-/parsimmon-1.10.0.tgz",
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+      "dev": true
+    },
+    "JSONSelect": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/JSONSelect/-/JSONSelect-0.4.0.tgz",
+      "integrity": "sha1-oI7cxn6z/L6Z7WMIVTRKDPKCu40=",
+      "dev": true
+    },
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
+      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "dev": true
+    },
+    "accepts": {
+      "version": "1.3.5",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
+      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "dev": true,
+      "requires": {
+        "mime-types": "~2.1.18",
+        "negotiator": "0.6.1"
+      }
+    },
+    "acorn": {
+      "version": "5.7.3",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
+      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+      "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
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+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
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+            "readable-stream": "^2.0.1"
+          }
+        },
+        "mime": {
+          "version": "1.6.0",
+          "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
+          "integrity": "sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==",
+          "dev": true
+        }
+      }
+    },
+    "webpack-dev-server": {
+      "version": "1.16.5",
+      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-1.16.5.tgz",
+      "integrity": "sha1-DL1fLSrI1OWTqs1clwLnu9XlmJI=",
+      "dev": true,
+      "requires": {
+        "compression": "^1.5.2",
+        "connect-history-api-fallback": "^1.3.0",
+        "express": "^4.13.3",
+        "http-proxy-middleware": "~0.17.1",
+        "open": "0.0.5",
+        "optimist": "~0.6.1",
+        "serve-index": "^1.7.2",
+        "sockjs": "^0.3.15",
+        "sockjs-client": "^1.0.3",
+        "stream-cache": "~0.0.1",
+        "strip-ansi": "^3.0.0",
+        "supports-color": "^3.1.1",
+        "webpack-dev-middleware": "^1.10.2"
+      },
+      "dependencies": {
+        "has-flag": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-1.0.0.tgz",
+          "integrity": "sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "3.2.3",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-3.2.3.tgz",
+          "integrity": "sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=",
+          "dev": true,
+          "requires": {
+            "has-flag": "^1.0.0"
+          }
+        }
+      }
+    },
+    "websocket-driver": {
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.0.tgz",
+      "integrity": "sha1-DK+dLXVdk67gSdS90NP+LMoqJOs=",
+      "dev": true,
+      "requires": {
+        "http-parser-js": ">=0.4.0",
+        "websocket-extensions": ">=0.1.1"
+      }
+    },
+    "websocket-extensions": {
+      "version": "0.1.3",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
+      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "dev": true
+    },
+    "when": {
+      "version": "3.7.8",
+      "resolved": "https://registry.npmjs.org/when/-/when-3.7.8.tgz",
+      "integrity": "sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I=",
+      "dev": true
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "which-module": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
+      "dev": true
+    },
+    "window-size": {
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.4.tgz",
+      "integrity": "sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY=",
+      "dev": true
+    },
+    "wordwrap": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+    },
+    "wrap-ansi": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "dev": true,
+      "requires": {
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.1"
+      },
+      "dependencies": {
+        "is-fullwidth-code-point": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
+          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+          "dev": true,
+          "requires": {
+            "number-is-nan": "^1.0.0"
+          }
+        },
+        "string-width": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
+          "requires": {
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
+          }
+        }
+      }
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "write": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
+      "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
+      "dev": true,
+      "requires": {
+        "mkdirp": "^0.5.1"
+      }
+    },
+    "xml2js": {
+      "version": "0.4.19",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
+      "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
+      "dev": true,
+      "requires": {
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~9.0.1"
+      }
+    },
+    "xmlbuilder": {
+      "version": "9.0.7",
+      "resolved": "https://registry.npmjs.org/xmlbuilder/-/xmlbuilder-9.0.7.tgz",
+      "integrity": "sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=",
+      "dev": true
+    },
+    "xtend": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "dev": true
+    },
+    "y18n": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
+      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+      "dev": true
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
+    "yargs": {
+      "version": "3.27.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.27.0.tgz",
+      "integrity": "sha1-ISBUaTFuk5Ex1Z8toMbX+YIh6kA=",
+      "dev": true,
+      "requires": {
+        "camelcase": "^1.2.1",
+        "cliui": "^2.1.0",
+        "decamelize": "^1.0.0",
+        "os-locale": "^1.4.0",
+        "window-size": "^0.1.2",
+        "y18n": "^3.2.0"
+      }
+    },
+    "yargs-parser": {
+      "version": "11.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
+      "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "dev": true
+        }
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index de504a42a..7a514ec20 100644
--- a/package.json
+++ b/package.json
@@ -56,6 +56,7 @@
     "mock-stdin": "^0.3.0",
     "mustache": "^2.1.3",
     "semver": "^5.0.1",
+    "typescript": "^3.4.3",
     "underscore": "^1.5.1",
     "webpack": "^1.12.6",
     "webpack-dev-server": "^1.12.1"

From dd0144c77127a6336b66f16415a80a9ba03cd91e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 13 Apr 2019 16:18:37 +0200
Subject: [PATCH 034/191] Update release notes

---
 release-notes.md | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 83eee15e1..0d63048d9 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,28 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...master)
+
+## v4.1.2 - April 13th, 2019
+Chore/Test:
+- [#1515](https://github.com/wycats/handlebars.js/pull/1515) - Port over linting and test for typings ([@zimmi88](https://api.github.com/users/zimmi88))
+- chore: add missing typescript dependency, add package-lock.json - 594f1e3
+- test: remove safari from saucelabs - 871accc
+
+Bugfixes: 
+- fix: prevent RCE through the "lookup"-helper - cd38583
+
+Compatibility notes:
+
+Access to the constructor of a class thought `{{lookup obj "constructor" }}` is now prohibited. This closes 
+a leak that only half closed in versions 4.0.13 and 4.1.0, but it is a slight incompatibility.
+
+This kind of access is not the intended use of Handlebars and leads to the vulnerability described
+in #1495. We will **not** increase the major version, because such use is not intended or documented, 
+and because of the potential impact of the issue (we fear that most people won't use a new major version
+and the issue may not be resolved on many systems). 
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...v4.1.2)
 
 ## v4.1.1 - March 16th, 2019
 Bugfixes:

From 10b5fcf92e6f3ddcbcec93c05c00cfdbb2e8d303 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 13 Apr 2019 16:19:22 +0200
Subject: [PATCH 035/191] v4.1.2

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index ffd98e358..b84af54cd 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index e6a38c6f2..bae498e04 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.1.1</version>
+		<version>4.1.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index ced91e119..cf5e4964d 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index a1278d1e5..768870069 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.1.1';
+export const VERSION = '4.1.2';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index 7a514ec20..2d9a1bd95 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 5eb59a530245a65fbcbf86b449bd7e22577c66d0 Mon Sep 17 00:00:00 2001
From: Toby Harris <tobyharris93@gmail.com>
Date: Thu, 22 Aug 2019 10:36:13 +1000
Subject: [PATCH 036/191] added browser to package.json, resolves #1102

---
 package.json | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package.json b/package.json
index 2d9a1bd95..985327ea2 100644
--- a/package.json
+++ b/package.json
@@ -63,6 +63,10 @@
   },
   "main": "lib/index.js",
   "types": "types/index.d.ts",
+  "browser": {
+    ".": "./dist/handlebars.min.js",
+    "./runtime": "./dist/handlebars.runtime.min.js"
+  },
   "bin": {
     "handlebars": "bin/handlebars"
   },

From fde409ace653c60c6199333b076b260b9b9c358d Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 25 Aug 2019 18:05:56 +0200
Subject: [PATCH 037/191] Update release notes

---
 release-notes.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 0d63048d9..100fda684 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,15 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2-0...master)
+
+## v4.1.2-0 - August 25th, 2019
+[#1540](https://github.com/wycats/handlebars.js/pull/1540) - added browser to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
+
+Compatibility notes:
+- We are not sure if imports via webpack are still working, which is why this release is a pre-release
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.1.2-0)
 
 ## v4.1.2 - April 13th, 2019
 Chore/Test:

From f98c6a54256fec0b36ae1adc4c36ab5412ca3b88 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 25 Aug 2019 18:06:35 +0200
Subject: [PATCH 038/191] v4.1.2-0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index b84af54cd..9b52d6927 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.2",
+  "version": "4.1.2-0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index bae498e04..8685b6a4d 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.1.2</version>
+		<version>4.1.2-0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index cf5e4964d..1cc2e70e7 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.2",
+  "version": "4.1.2-0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 768870069..0bbd67110 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.1.2';
+export const VERSION = '4.1.2-0';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index 985327ea2..520b08e31 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.1.2",
+  "version": "4.1.2-0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 16572cd848a6ed9915e3f6d445a0a1a864d18e21 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 29 Aug 2019 22:53:09 +0200
Subject: [PATCH 039/191] feat: enhance typescript definition for knownHelpers

- Add support for custom helpers while keeping
  the list of builtin-helpers to maintain for
  autocompletion support

closes #1544
---
 types/index.d.ts | 27 +++++++++++++++++----------
 types/test.ts    | 12 ++++++++++--
 2 files changed, 27 insertions(+), 12 deletions(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index 237bfa580..d075e234a 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -173,16 +173,7 @@ type RuntimeOptions = Handlebars.RuntimeOptions;
 interface CompileOptions {
   data?: boolean;
   compat?: boolean;
-  knownHelpers?: {
-      helperMissing?: boolean;
-      blockHelperMissing?: boolean;
-      each?: boolean;
-      if?: boolean;
-      unless?: boolean;
-      with?: boolean;
-      log?: boolean;
-      lookup?: boolean;
-  };
+  knownHelpers?: KnownHelpers;
   knownHelpersOnly?: boolean;
   noEscape?: boolean;
   strict?: boolean;
@@ -192,6 +183,22 @@ interface CompileOptions {
   explicitPartialContext?: boolean;
 }
 
+type KnownHelpers = {
+  [name in BuiltinHelperName | CustomHelperName]: boolean;
+};
+
+type BuiltinHelperName =
+  "helperMissing"|
+  "blockHelperMissing"|
+  "each"|
+  "if"|
+  "unless"|
+  "with"|
+  "log"|
+  "lookup";
+
+type CustomHelperName = string;
+
 interface PrecompileOptions extends CompileOptions {
   srcName?: string;
   destName?: string;
diff --git a/types/test.ts b/types/test.ts
index fd0b7bb1b..f242f55bc 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -76,7 +76,7 @@ Handlebars.registerHelper('list', (context, options: Handlebars.HelperOptions) =
   }
   return ret + "</ul>";
 });
-template6([{url:"", title:""}])
+template6([{url:"", title:""}]);
 
 
 const escapedExpression = Handlebars.Utils.escapeExpression('<script>alert(\'xss\');</script>');
@@ -88,4 +88,12 @@ const parsedTmpl = Handlebars.parse('<p>Hello, my name is {{name}}.</p>', {
   ignoreStandalone: true
 });
 
-const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}.</p>');
\ No newline at end of file
+const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}.</p>');
+
+// #1544, allow custom helpers in knownHelpers
+Handlebars.compile('test', {
+  knownHelpers: {
+    each: true,
+    customHelper: true
+  }
+});

From f9cce4dd02577743a304bbf181dc90e371673be8 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 31 Aug 2019 13:18:47 +0200
Subject: [PATCH 040/191] chore: add framework for various integration tests

---
 .travis.yml                                   |   2 +-
 Gruntfile.js                                  |   2 +-
 integration-testing/README.md                 |  12 ++
 .../multi-nodejs-test/.eslintrc.js            |  12 ++
 .../multi-nodejs-test/.gitignore              |   1 +
 .../precompile-test-template.txt.hbs          |   1 +
 .../multi-nodejs-test/run-handlebars.js       |  14 +++
 .../multi-nodejs-test/test.sh                 |   8 +-
 integration-testing/run-integration-tests.sh  |  12 ++
 .../.gitignore                                |   0
 .../package-lock.json                         |  17 +++
 .../package.json                              |  15 +++
 .../test.sh                                   |   3 +
 multi-nodejs-test/.eslintrc.js                | 114 ------------------
 multi-nodejs-test/expected.txt                |   1 -
 multi-nodejs-test/run-handlebars.js           |  13 --
 multi-nodejs-test/template.txt.hbs            |   1 -
 17 files changed, 94 insertions(+), 134 deletions(-)
 create mode 100644 integration-testing/README.md
 create mode 100644 integration-testing/multi-nodejs-test/.eslintrc.js
 create mode 100644 integration-testing/multi-nodejs-test/.gitignore
 create mode 100644 integration-testing/multi-nodejs-test/precompile-test-template.txt.hbs
 create mode 100755 integration-testing/multi-nodejs-test/run-handlebars.js
 rename multi-nodejs-test/run-tests.sh => integration-testing/multi-nodejs-test/test.sh (78%)
 create mode 100755 integration-testing/run-integration-tests.sh
 create mode 100644 integration-testing/webpack-handlebars-loader-test-npm/.gitignore
 create mode 100644 integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
 create mode 100644 integration-testing/webpack-handlebars-loader-test-npm/package.json
 create mode 100755 integration-testing/webpack-handlebars-loader-test-npm/test.sh
 delete mode 100644 multi-nodejs-test/.eslintrc.js
 delete mode 100644 multi-nodejs-test/expected.txt
 delete mode 100755 multi-nodejs-test/run-handlebars.js
 delete mode 100644 multi-nodejs-test/template.txt.hbs

diff --git a/.travis.yml b/.travis.yml
index b8c200dd2..20e7c895a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,7 @@ before_install:
 - npm install -g grunt-cli
 script:
 - grunt --stack travis
-- multi-nodejs-test/run-tests.sh 0.10 0.12 4 5 6 7 8 9 10 11
+- integration-testing/run-integration-tests.sh
 email:
   on_failure: change
   on_success: never
diff --git a/Gruntfile.js b/Gruntfile.js
index 8fd258601..871ea4611 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -13,7 +13,7 @@ module.exports = function(grunt) {
         'tasks/**/*.js',
         'lib/**/!(*.min|parser).js',
         'spec/**/!(*.amd|json2|require).js',
-        'multi-nodejs-test/*.js'
+        'integration-testing/**/*.js'
       ]
     },
 
diff --git a/integration-testing/README.md b/integration-testing/README.md
new file mode 100644
index 000000000..bd9554c53
--- /dev/null
+++ b/integration-testing/README.md
@@ -0,0 +1,12 @@
+Add a new integration test by creating a new subfolder
+
+Add a file "test.sh" to that runs the test. "test.sh" should exit with a non-zero exit code 
+and display an error message, if something goes wrong.
+
+* An integration test should reflect real-world setups that use handlebars.
+* It should compile a minimal template and compare the output to an expected output.
+* It should use "../.." as dependency for Handlebars so that the currently built library is used.
+
+Currently, integration tests are only running on Linux, especially in travis-ci.
+
+  
\ No newline at end of file
diff --git a/integration-testing/multi-nodejs-test/.eslintrc.js b/integration-testing/multi-nodejs-test/.eslintrc.js
new file mode 100644
index 000000000..7f583d1c5
--- /dev/null
+++ b/integration-testing/multi-nodejs-test/.eslintrc.js
@@ -0,0 +1,12 @@
+module.exports = {
+  "extends": "eslint:recommended",
+  "globals": {
+    "self": false
+  },
+  "env": {
+    "node": true
+  },
+  "rules": {
+    'no-console': 'off'
+  }
+}
\ No newline at end of file
diff --git a/integration-testing/multi-nodejs-test/.gitignore b/integration-testing/multi-nodejs-test/.gitignore
new file mode 100644
index 000000000..1de565933
--- /dev/null
+++ b/integration-testing/multi-nodejs-test/.gitignore
@@ -0,0 +1 @@
+target
\ No newline at end of file
diff --git a/integration-testing/multi-nodejs-test/precompile-test-template.txt.hbs b/integration-testing/multi-nodejs-test/precompile-test-template.txt.hbs
new file mode 100644
index 000000000..d29a17914
--- /dev/null
+++ b/integration-testing/multi-nodejs-test/precompile-test-template.txt.hbs
@@ -0,0 +1 @@
+Author: {{author}}
\ No newline at end of file
diff --git a/integration-testing/multi-nodejs-test/run-handlebars.js b/integration-testing/multi-nodejs-test/run-handlebars.js
new file mode 100755
index 000000000..126354dbe
--- /dev/null
+++ b/integration-testing/multi-nodejs-test/run-handlebars.js
@@ -0,0 +1,14 @@
+// This test should run successfully with node 0.10 as long as Handlebars has been compiled before
+var assert = require('assert');
+var Handlebars = require('../../');
+
+console.log('Testing build Handlebars with Node version ' + process.version);
+
+var output = Handlebars.compile('Author: {{author}}')({author: 'Yehuda'});
+if (output !== 'Author: Yehuda') {
+    throw new Error('Compiled output (' + compiledOutput + ') did not match expected output (' + expectedOutput + ')');
+}
+
+assert.equal(output, 'Author: Yehuda')
+
+console.log('Success');
diff --git a/multi-nodejs-test/run-tests.sh b/integration-testing/multi-nodejs-test/test.sh
similarity index 78%
rename from multi-nodejs-test/run-tests.sh
rename to integration-testing/multi-nodejs-test/test.sh
index 174a12ccb..92e7e47de 100755
--- a/multi-nodejs-test/run-tests.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-cd "$( dirname "$( readlink -f "$0" )" )"
+cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 
 # This script tests with precompiler and the built distribution with multiple NodeJS version.
@@ -13,9 +13,11 @@ cd "$( dirname "$( readlink -f "$0" )" )"
 
 # A list of NodeJS versions is expected as cli-args
 echo "Handlebars should be able to run in various versions of NodeJS"
-for i in "$@" ; do
+for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
+    rm target -rf
+    mkdir target
     nvm install "$i"
     nvm exec "$i" node ./run-handlebars.js >/dev/null || exit 1
-    nvm exec "$i" node ../bin/handlebars template.txt.hbs >/dev/null || exit 1
+    nvm exec "$i" node ../../bin/handlebars precompile-test-template.txt.hbs -f target/precompile-test-template.js || exit 1
     echo Success
 done
\ No newline at end of file
diff --git a/integration-testing/run-integration-tests.sh b/integration-testing/run-integration-tests.sh
new file mode 100755
index 000000000..79bfa87a4
--- /dev/null
+++ b/integration-testing/run-integration-tests.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+for i in */test.sh ; do
+  (
+    echo "----------------------------------------"
+    echo "-- Running integration test: $i"
+    echo "----------------------------------------"
+    cd "$( dirname "$i" )" || exit 1
+    ./test.sh || exit 1
+  )
+done
\ No newline at end of file
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/.gitignore b/integration-testing/webpack-handlebars-loader-test-npm/.gitignore
new file mode 100644
index 000000000..e69de29bb
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json b/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
new file mode 100644
index 000000000..f5074caf6
--- /dev/null
+++ b/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
@@ -0,0 +1,17 @@
+{
+  "name": "webpack-handlebars-loader-test",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "handlebars": {
+      "version": "file:../..",
+      "requires": {
+        "neo-async": "^2.6.0",
+        "optimist": "^0.6.1",
+        "source-map": "^0.6.1",
+        "uglify-js": "^3.1.4"
+      }
+    }
+  }
+}
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/package.json b/integration-testing/webpack-handlebars-loader-test-npm/package.json
new file mode 100644
index 000000000..7bc7d19d0
--- /dev/null
+++ b/integration-testing/webpack-handlebars-loader-test-npm/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "webpack-handlebars-loader-test",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\""
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "handlebars": "file:../.."
+  }
+}
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/test.sh b/integration-testing/webpack-handlebars-loader-test-npm/test.sh
new file mode 100755
index 000000000..45816bd25
--- /dev/null
+++ b/integration-testing/webpack-handlebars-loader-test-npm/test.sh
@@ -0,0 +1,3 @@
+npm install
+npm test
+
diff --git a/multi-nodejs-test/.eslintrc.js b/multi-nodejs-test/.eslintrc.js
deleted file mode 100644
index 6d3592c7b..000000000
--- a/multi-nodejs-test/.eslintrc.js
+++ /dev/null
@@ -1,114 +0,0 @@
-module.exports = {
-  "extends": "eslint:recommended",
-  "globals": {
-    "self": false
-  },
-  "env": {
-    "node": true
-  },
-  "rules": {
-    // overrides eslint:recommended defaults
-    "no-sparse-arrays": "off",
-    "no-func-assign": "off",
-    "no-console": "off",
-    "no-debugger": "warn",
-    "no-unreachable": "warn",
-
-    // Possible Errors //
-    //-----------------//
-    "no-unsafe-negation": "error",
-
-
-    // Best Practices //
-    //----------------//
-    "curly": "error",
-    "default-case": "warn",
-    "dot-notation": ["error", { "allowKeywords": false }],
-    "guard-for-in": "warn",
-    "no-alert": "error",
-    "no-caller": "error",
-    "no-div-regex": "warn",
-    "no-eval": "error",
-    "no-extend-native": "error",
-    "no-extra-bind": "error",
-    "no-floating-decimal": "error",
-    "no-implied-eval": "error",
-    "no-iterator": "error",
-    "no-labels": "error",
-    "no-lone-blocks": "error",
-    "no-loop-func": "error",
-    "no-multi-spaces": "error",
-    "no-multi-str": "warn",
-    "no-global-assign": "error",
-    "no-new": "error",
-    "no-new-func": "error",
-    "no-new-wrappers": "error",
-    "no-octal-escape": "error",
-    "no-process-env": "error",
-    "no-proto": "error",
-    "no-return-assign": "error",
-    "no-script-url": "error",
-    "no-self-compare": "error",
-    "no-sequences": "error",
-    "no-throw-literal": "error",
-    "no-unused-expressions": "error",
-    "no-warning-comments": "warn",
-    "no-with": "error",
-    "radix": "error",
-    "wrap-iife": "error",
-
-
-    // Variables //
-    //-----------//
-    "no-catch-shadow": "error",
-    "no-label-var": "error",
-    "no-shadow-restricted-names": "error",
-    "no-undef-init": "error",
-    "no-use-before-define": ["error", "nofunc"],
-
-
-    // Stylistic Issues //
-    //------------------//
-    "comma-dangle": ["error", "never"],
-    "quote-props": ["error", "as-needed", { "keywords": true, "unnecessary": false }],
-    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
-    "camelcase": "error",
-    "comma-spacing": ["error", { "before": false, "after": true }],
-    "comma-style": ["error", "last"],
-    "consistent-this": ["warn", "self"],
-    "eol-last": "error",
-    "func-style": ["error", "declaration"],
-    "key-spacing": ["error", {
-      "beforeColon": false,
-      "afterColon": true
-    }],
-    "new-cap": "error",
-    "new-parens": "error",
-    "no-array-constructor": "error",
-    "no-lonely-if": "error",
-    "no-mixed-spaces-and-tabs": "error",
-    "no-nested-ternary": "warn",
-    "no-new-object": "error",
-    "no-spaced-func": "error",
-    "no-trailing-spaces": "error",
-    "no-extra-parens": ["error", "functions"],
-    "quotes": ["error", "single", "avoid-escape"],
-    "semi": "error",
-    "semi-spacing": ["error", { "before": false, "after": true }],
-    "keyword-spacing": "error",
-    "space-before-blocks": ["error", "always"],
-    "space-before-function-paren": ["error", { "anonymous": "never", "named": "never" }],
-    "space-in-parens": ["error", "never"],
-    "space-infix-ops": "error",
-    "space-unary-ops": "error",
-    "spaced-comment": ["error", "always", { "markers": [","] }],
-    "wrap-regex": "warn",
-
-    // ECMAScript 6 //
-    //--------------//
-    "no-var": "off"
-  },
-  "parserOptions": {
-    "sourceType": "module"
-  }
-}
\ No newline at end of file
diff --git a/multi-nodejs-test/expected.txt b/multi-nodejs-test/expected.txt
deleted file mode 100644
index 19a4be2d7..000000000
--- a/multi-nodejs-test/expected.txt
+++ /dev/null
@@ -1 +0,0 @@
-Author: Yehuda
diff --git a/multi-nodejs-test/run-handlebars.js b/multi-nodejs-test/run-handlebars.js
deleted file mode 100755
index 58bc8d495..000000000
--- a/multi-nodejs-test/run-handlebars.js
+++ /dev/null
@@ -1,13 +0,0 @@
-// This test should run with node 0.10 as long as Handlebars has been compiled before
-var Handlebars = require('../');
-var fs = require('fs');
-
-console.log('Testing build Handlebars with Node version ' + process.version);
-var template = fs.readFileSync(require.resolve('./template.txt.hbs'), 'utf-8');
-var compiledOutput = Handlebars.compile(template)({author: 'Yehuda'}).trim();
-var expectedOutput = fs.readFileSync(require.resolve('./expected.txt'), 'utf-8').trim();
-
-if (compiledOutput !== expectedOutput) {
-    throw new Error('Compiled output (' + compiledOutput + ') did not match expected output (' + expectedOutput + ')');
-}
-console.log('Success');
diff --git a/multi-nodejs-test/template.txt.hbs b/multi-nodejs-test/template.txt.hbs
deleted file mode 100644
index 61d4dd7fa..000000000
--- a/multi-nodejs-test/template.txt.hbs
+++ /dev/null
@@ -1 +0,0 @@
-Author: {{author}} 

From a26633f20485c420d1967e191ce852bf37ae9bce Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 31 Aug 2019 19:27:11 +0200
Subject: [PATCH 041/191] chore: fix integration tests

---
 .travis.yml                                      |  1 -
 Gruntfile.js                                     | 11 +++++++++--
 integration-testing/multi-nodejs-test/.gitignore |  3 ++-
 .../multi-nodejs-test/package.json               | 16 ++++++++++++++++
 .../multi-nodejs-test/run-handlebars.js          | 15 ++++++---------
 integration-testing/multi-nodejs-test/test.sh    |  9 ++++++---
 .../webpack-handlebars-loader-test-npm/test.sh   |  2 ++
 7 files changed, 41 insertions(+), 16 deletions(-)
 create mode 100644 integration-testing/multi-nodejs-test/package.json

diff --git a/.travis.yml b/.travis.yml
index 20e7c895a..ce9690a9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,7 +3,6 @@ before_install:
 - npm install -g grunt-cli
 script:
 - grunt --stack travis
-- integration-testing/run-integration-tests.sh
 email:
   on_failure: change
   on_success: never
diff --git a/Gruntfile.js b/Gruntfile.js
index 871ea4611..fad1be391 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -17,7 +17,7 @@ module.exports = function(grunt) {
       ]
     },
 
-    clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js'],
+    clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js', 'integration-testing/**/node_modules'],
 
     copy: {
       dist: {
@@ -192,7 +192,13 @@ module.exports = function(grunt) {
         cmd: 'npm run checkTypes',
         bg: false,
         fail: true
+      },
+      integrationTests: {
+        cmd: './integration-testing/run-integration-tests.sh',
+        bg: false,
+        fail: true
       }
+
     },
 
     watch: {
@@ -241,8 +247,9 @@ module.exports = function(grunt) {
   grunt.registerTask('bench', ['metrics']);
   grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
 
-  grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'sauce', 'metrics', 'publish:latest'] : ['default']);
+  grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'bgShell:integrationTests', 'sauce', 'metrics', 'publish:latest'] : ['default']);
 
   grunt.registerTask('dev', ['clean', 'connect', 'watch']);
   grunt.registerTask('default', ['clean', 'build', 'test', 'release']);
+  grunt.registerTask('integration-tests', ['default', 'bgShell:integrationTests']);
 };
diff --git a/integration-testing/multi-nodejs-test/.gitignore b/integration-testing/multi-nodejs-test/.gitignore
index 1de565933..c9e965691 100644
--- a/integration-testing/multi-nodejs-test/.gitignore
+++ b/integration-testing/multi-nodejs-test/.gitignore
@@ -1 +1,2 @@
-target
\ No newline at end of file
+target
+package-lock.json
\ No newline at end of file
diff --git a/integration-testing/multi-nodejs-test/package.json b/integration-testing/multi-nodejs-test/package.json
new file mode 100644
index 000000000..2fac51d2d
--- /dev/null
+++ b/integration-testing/multi-nodejs-test/package.json
@@ -0,0 +1,16 @@
+{
+  "name": "multi-nodejs-test",
+  "version": "1.0.0",
+  "description": "Simple integration test with all relevant NodeJS-versions.",
+  "keywords": [],
+  "author": "Nils Knappmeier",
+  "private": true,
+  "license": "MIT",
+  "dependencies": {
+    "handlebars": "file:../.."
+  },
+  "scripts": {
+    "test": "node run-handlebars.js",
+    "test-precompile": "handlebars precompile-test-template.txt.hbs"
+  }
+}
diff --git a/integration-testing/multi-nodejs-test/run-handlebars.js b/integration-testing/multi-nodejs-test/run-handlebars.js
index 126354dbe..9aded26cf 100755
--- a/integration-testing/multi-nodejs-test/run-handlebars.js
+++ b/integration-testing/multi-nodejs-test/run-handlebars.js
@@ -1,14 +1,11 @@
-// This test should run successfully with node 0.10 as long as Handlebars has been compiled before
+// This test should run successfully with node 0.10++ as long as Handlebars has been compiled before
 var assert = require('assert');
-var Handlebars = require('../../');
+var Handlebars = require('handlebars');
 
-console.log('Testing build Handlebars with Node version ' + process.version);
+console.log('Testing built Handlebars with Node version ' + process.version);
 
-var output = Handlebars.compile('Author: {{author}}')({author: 'Yehuda'});
-if (output !== 'Author: Yehuda') {
-    throw new Error('Compiled output (' + compiledOutput + ') did not match expected output (' + expectedOutput + ')');
-}
-
-assert.equal(output, 'Author: Yehuda')
+var template = Handlebars.compile('Author: {{author}}');
+var output = template({author: 'Yehuda'});
+assert.strictEqual(output, 'Author: Yehuda');
 
 console.log('Success');
diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index 92e7e47de..953949bb2 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+# shellcheck disable=SC1090
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
 
 # This script tests with precompiler and the built distribution with multiple NodeJS version.
@@ -14,10 +15,12 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 # A list of NodeJS versions is expected as cli-args
 echo "Handlebars should be able to run in various versions of NodeJS"
 for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
-    rm target -rf
+    rm target node_modules package-lock.json -rf
     mkdir target
     nvm install "$i"
-    nvm exec "$i" node ./run-handlebars.js >/dev/null || exit 1
-    nvm exec "$i" node ../../bin/handlebars precompile-test-template.txt.hbs -f target/precompile-test-template.js || exit 1
+    nvm exec "$i" npm install
+    nvm exec "$i" npm run test || exit 1
+    nvm exec "$i" npm run test-precompile || exit 1
+
     echo Success
 done
\ No newline at end of file
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/test.sh b/integration-testing/webpack-handlebars-loader-test-npm/test.sh
index 45816bd25..828e8a6da 100755
--- a/integration-testing/webpack-handlebars-loader-test-npm/test.sh
+++ b/integration-testing/webpack-handlebars-loader-test-npm/test.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 npm install
 npm test
 

From a57b6824e0d6cbbdb1d8c9ded21fd875d9320713 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 31 Aug 2019 21:00:14 +0200
Subject: [PATCH 042/191] add webpack test

---
 .gitignore                                    |  1 +
 integration-testing/run-integration-tests.sh  |  1 +
 .../.gitignore                                |  0
 .../package-lock.json                         | 17 --------------
 .../package.json                              | 15 -------------
 .../test.sh                                   |  5 -----
 integration-testing/webpack-test/.gitignore   |  3 +++
 integration-testing/webpack-test/package.json | 21 ++++++++++++++++++
 .../handlebars-default-import-pre-4.2-test.js |  6 +++++
 .../src/handlebars-default-import-test.js     |  6 +++++
 .../src/handlebars-loader-test.js             |  8 +++++++
 ...handlebars-wildcard-import-pre-4.2-test.js |  6 +++++
 .../src/handlebars-wildcard-import-test.js    |  5 +++++
 .../webpack-test/src/lib/assert.js            |  5 +++++
 .../webpack-test/src/test-template.handlebars |  2 ++
 integration-testing/webpack-test/test.sh      | 16 ++++++++++++++
 .../webpack-test/webpack.config.js            | 22 +++++++++++++++++++
 package-lock.json                             |  2 +-
 18 files changed, 103 insertions(+), 38 deletions(-)
 delete mode 100644 integration-testing/webpack-handlebars-loader-test-npm/.gitignore
 delete mode 100644 integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
 delete mode 100644 integration-testing/webpack-handlebars-loader-test-npm/package.json
 delete mode 100755 integration-testing/webpack-handlebars-loader-test-npm/test.sh
 create mode 100644 integration-testing/webpack-test/.gitignore
 create mode 100644 integration-testing/webpack-test/package.json
 create mode 100644 integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
 create mode 100644 integration-testing/webpack-test/src/handlebars-default-import-test.js
 create mode 100644 integration-testing/webpack-test/src/handlebars-loader-test.js
 create mode 100644 integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
 create mode 100644 integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
 create mode 100644 integration-testing/webpack-test/src/lib/assert.js
 create mode 100644 integration-testing/webpack-test/src/test-template.handlebars
 create mode 100755 integration-testing/webpack-test/test.sh
 create mode 100644 integration-testing/webpack-test/webpack.config.js

diff --git a/.gitignore b/.gitignore
index 42b64dde0..4c97eecd6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ npm-debug.log
 sauce_connect.log*
 .idea
 yarn-error.log
+/handlebars-release.tgz
diff --git a/integration-testing/run-integration-tests.sh b/integration-testing/run-integration-tests.sh
index 79bfa87a4..dd6e72764 100755
--- a/integration-testing/run-integration-tests.sh
+++ b/integration-testing/run-integration-tests.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+
 for i in */test.sh ; do
   (
     echo "----------------------------------------"
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/.gitignore b/integration-testing/webpack-handlebars-loader-test-npm/.gitignore
deleted file mode 100644
index e69de29bb..000000000
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json b/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
deleted file mode 100644
index f5074caf6..000000000
--- a/integration-testing/webpack-handlebars-loader-test-npm/package-lock.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-  "name": "webpack-handlebars-loader-test",
-  "version": "1.0.0",
-  "lockfileVersion": 1,
-  "requires": true,
-  "dependencies": {
-    "handlebars": {
-      "version": "file:../..",
-      "requires": {
-        "neo-async": "^2.6.0",
-        "optimist": "^0.6.1",
-        "source-map": "^0.6.1",
-        "uglify-js": "^3.1.4"
-      }
-    }
-  }
-}
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/package.json b/integration-testing/webpack-handlebars-loader-test-npm/package.json
deleted file mode 100644
index 7bc7d19d0..000000000
--- a/integration-testing/webpack-handlebars-loader-test-npm/package.json
+++ /dev/null
@@ -1,15 +0,0 @@
-{
-  "name": "webpack-handlebars-loader-test",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\""
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "dependencies": {
-    "handlebars": "file:../.."
-  }
-}
diff --git a/integration-testing/webpack-handlebars-loader-test-npm/test.sh b/integration-testing/webpack-handlebars-loader-test-npm/test.sh
deleted file mode 100755
index 828e8a6da..000000000
--- a/integration-testing/webpack-handlebars-loader-test-npm/test.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/bash
-
-npm install
-npm test
-
diff --git a/integration-testing/webpack-test/.gitignore b/integration-testing/webpack-test/.gitignore
new file mode 100644
index 000000000..3a8ec2b3f
--- /dev/null
+++ b/integration-testing/webpack-test/.gitignore
@@ -0,0 +1,3 @@
+node_modules
+dist
+package-lock.json
\ No newline at end of file
diff --git a/integration-testing/webpack-test/package.json b/integration-testing/webpack-test/package.json
new file mode 100644
index 000000000..bb5757f48
--- /dev/null
+++ b/integration-testing/webpack-test/package.json
@@ -0,0 +1,21 @@
+{
+  "name": "webpack-test",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "build": "webpack --config webpack.config.js",
+    "test": "node dist/main.js"
+  },
+  "private": true,
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {},
+  "devDependencies": {
+    "handlebars": "file:../..",
+    "handlebars-loader": "^1.7.1",
+    "webpack": "^4.39.3",
+    "webpack-cli": "^3.3.7"
+  },
+  "description": ""
+}
diff --git a/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js b/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
new file mode 100644
index 000000000..6bc630da3
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
@@ -0,0 +1,6 @@
+import Handlebars from 'handlebars/dist/handlebars';
+
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-default-import-test.js b/integration-testing/webpack-test/src/handlebars-default-import-test.js
new file mode 100644
index 000000000..97fc3f8b7
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-default-import-test.js
@@ -0,0 +1,6 @@
+import Handlebars from 'handlebars';
+import {assertEquals} from './lib/assert';
+
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-loader-test.js b/integration-testing/webpack-test/src/handlebars-loader-test.js
new file mode 100644
index 000000000..4727c7a3a
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-loader-test.js
@@ -0,0 +1,8 @@
+import {assertEquals} from './lib/assert';
+
+import testTemplate from './test-template.handlebars';
+assertEquals(testTemplate({author: 'Yehuda'}).trim(), 'Author: Yehuda');
+
+
+const testTemplateRequire = require('./test-template.handlebars');
+assertEquals(testTemplateRequire({author: 'Yehuda'}).trim(), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js b/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
new file mode 100644
index 000000000..3731c5ac8
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
@@ -0,0 +1,6 @@
+import * as Handlebars from 'handlebars/dist/handlebars';
+
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js b/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
new file mode 100644
index 000000000..2ea0c1b49
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
@@ -0,0 +1,5 @@
+import * as Handlebars from 'handlebars';
+import {assertEquals} from './lib/assert';
+
+const template = Handlebars.compile('Author: {{author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/lib/assert.js b/integration-testing/webpack-test/src/lib/assert.js
new file mode 100644
index 000000000..9f33188db
--- /dev/null
+++ b/integration-testing/webpack-test/src/lib/assert.js
@@ -0,0 +1,5 @@
+export function assertEquals(actual, expected) {
+    if (actual !== expected) {
+        throw new Error(`Expected "${actual}" to equal "${expected}"`);
+    }
+}
diff --git a/integration-testing/webpack-test/src/test-template.handlebars b/integration-testing/webpack-test/src/test-template.handlebars
new file mode 100644
index 000000000..788f9c05d
--- /dev/null
+++ b/integration-testing/webpack-test/src/test-template.handlebars
@@ -0,0 +1,2 @@
+Author: {{author}}
+
diff --git a/integration-testing/webpack-test/test.sh b/integration-testing/webpack-test/test.sh
new file mode 100755
index 000000000..a45d5625f
--- /dev/null
+++ b/integration-testing/webpack-test/test.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+
+# Cleanup: package-lock and "npm ci" is not working with local dependencies
+rm dist package-lock.json -rf
+npm install
+npm run build
+
+for i in dist/*-test.js ; do
+  echo "----------------------"
+  echo "-- Running $i"
+  echo "----------------------"
+  node "$i"
+  echo "Success"
+done
\ No newline at end of file
diff --git a/integration-testing/webpack-test/webpack.config.js b/integration-testing/webpack-test/webpack.config.js
new file mode 100644
index 000000000..957321223
--- /dev/null
+++ b/integration-testing/webpack-test/webpack.config.js
@@ -0,0 +1,22 @@
+const fs = require('fs');
+
+const testFiles = fs.readdirSync('src');
+const entryPoints = {};
+testFiles
+    .filter(file => file.match(/-test.js$/))
+    .forEach(file => {
+        entryPoints[file] = `./src/${file}`;
+    });
+
+module.exports = {
+    entry: entryPoints,
+    output: {
+        filename: '[name]',
+        path: __dirname + '/dist'
+    },
+    module: {
+        rules: [
+            {test: /\.handlebars$/, loader: 'handlebars-loader'}
+        ]
+    }
+};
diff --git a/package-lock.json b/package-lock.json
index bb74117ea..bf7c18267 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.1",
+  "version": "4.1.2-0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

From 62b64ecc3d76033b8fc69dd1dcb0bef786b3e022 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 31 Aug 2019 23:53:28 +0200
Subject: [PATCH 043/191] chore: add comment to integration test

---
 integration-testing/webpack-test/package.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/integration-testing/webpack-test/package.json b/integration-testing/webpack-test/package.json
index bb5757f48..0940fe5f7 100644
--- a/integration-testing/webpack-test/package.json
+++ b/integration-testing/webpack-test/package.json
@@ -1,5 +1,6 @@
 {
   "name": "webpack-test",
+  "description": "Various tests with Handlebars and Webpack",
   "version": "1.0.0",
   "main": "index.js",
   "scripts": {
@@ -16,6 +17,5 @@
     "handlebars-loader": "^1.7.1",
     "webpack": "^4.39.3",
     "webpack-cli": "^3.3.7"
-  },
-  "description": ""
+  }
 }

From f119497312dc990c5043f65ca96083ef8fd729ac Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 31 Aug 2019 23:58:21 +0200
Subject: [PATCH 044/191] chore: attempt to fix saucelabs problems with custom
 lib

- custom "grunt-saucelabs"
- which uses custom "sauce-tunnel"
- which uses current "sauce connect proxy"
---
 package-lock.json | 501 ++++++++++++++++++++++++----------------------
 package.json      |   2 +-
 2 files changed, 266 insertions(+), 237 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index bf7c18267..1e8462001 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,7 +7,7 @@
     "@types/parsimmon": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/@types/parsimmon/-/parsimmon-1.10.0.tgz",
-      "integrity": "sha512-bsTIJFVQv7jnvNiC42ld2pQW2KRI+pAG243L+iATvqzy3X6+NH1obz2itRKDZZ8VVhN3wjwYax/VBGCcXzgTqQ==",
+      "integrity": "sha1-/7gcsCP/Q1pB1HEKKasjxWHcn98=",
       "dev": true
     },
     "JSONSelect": {
@@ -19,7 +19,7 @@
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
-      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
+      "integrity": "sha1-+PLIh60Qv2f2NPAFtph/7TF5qsg=",
       "dev": true
     },
     "accepts": {
@@ -35,7 +35,7 @@
     "acorn": {
       "version": "5.7.3",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
-      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+      "integrity": "sha1-Z6ojG/iBKXS4UjWpZ3Hra9B+onk=",
       "dev": true
     },
     "acorn-jsx": {
@@ -56,9 +56,9 @@
       }
     },
     "agent-base": {
-      "version": "4.2.1",
-      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.2.1.tgz",
-      "integrity": "sha512-JVwXMr9nHYTUXsBFKUqhJwvlcYU/blreOEUkhNR2eXZIvwd+c+o5V4MgDPKWnMS/56awN3TRzIP+KoPn+roQtg==",
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-4.3.0.tgz",
+      "integrity": "sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==",
       "dev": true,
       "requires": {
         "es6-promisify": "^5.0.0"
@@ -111,7 +111,7 @@
     "ansi-escapes": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
-      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==",
+      "integrity": "sha1-h4C5j/nb9WOBUtHx/lwde0RCl2s=",
       "dev": true
     },
     "ansi-regex": {
@@ -129,7 +129,7 @@
     "anymatch": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-1.3.2.tgz",
-      "integrity": "sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==",
+      "integrity": "sha1-VT3Lj5HjyImEXf26NMd3IbkLnXo=",
       "dev": true,
       "requires": {
         "micromatch": "^2.1.5",
@@ -139,7 +139,7 @@
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
-      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "integrity": "sha1-vNZ5HqWuCXJeF+WtmIE0zUCz2RE=",
       "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
@@ -165,7 +165,7 @@
     "arr-flatten": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/arr-flatten/-/arr-flatten-1.1.0.tgz",
-      "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
+      "integrity": "sha1-NgSLv/TntH4TZkQxbJlmnqWukfE=",
       "dev": true
     },
     "arr-union": {
@@ -195,7 +195,7 @@
     "array-slice": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
-      "integrity": "sha512-B1qMD3RBP7O8o0H2KbrXDyB0IccejMF15+87Lvlor12ONPRHP6gTjXMNkt/d3ZuOGbAe66hFmaCfECI24Ufp6w==",
+      "integrity": "sha1-42jqFfibxwaff/uJrsOmx9SsItQ=",
       "dev": true
     },
     "array-unique": {
@@ -207,7 +207,7 @@
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
-      "integrity": "sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==",
+      "integrity": "sha1-jSR136tVO7M+d7VOWeiAu4ziMTY=",
       "dev": true,
       "requires": {
         "safer-buffer": "~2.1.0"
@@ -284,7 +284,7 @@
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
-      "integrity": "sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==",
+      "integrity": "sha1-bZUX654DDSQ2ZmZR6GvZ9vE1M8k=",
       "dev": true
     },
     "aws-sdk": {
@@ -313,7 +313,7 @@
     "aws4": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.8.0.tgz",
-      "integrity": "sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==",
+      "integrity": "sha1-8OAD2cqef1nHpQiUXXsu+aBKVC8=",
       "dev": true
     },
     "babel-code-frame": {
@@ -528,7 +528,7 @@
     "base": {
       "version": "0.11.2",
       "resolved": "https://registry.npmjs.org/base/-/base-0.11.2.tgz",
-      "integrity": "sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==",
+      "integrity": "sha1-e95c7RRbbVUakNuH+DxVi060io8=",
       "dev": true,
       "requires": {
         "cache-base": "^1.0.1",
@@ -552,7 +552,7 @@
         "is-accessor-descriptor": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz",
-          "integrity": "sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==",
+          "integrity": "sha1-FpwvbT3x+ZJhgHI2XJsOofaHhlY=",
           "dev": true,
           "requires": {
             "kind-of": "^6.0.0"
@@ -561,7 +561,7 @@
         "is-data-descriptor": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz",
-          "integrity": "sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==",
+          "integrity": "sha1-2Eh2Mh0Oet0DmQQGq7u9NrqSaMc=",
           "dev": true,
           "requires": {
             "kind-of": "^6.0.0"
@@ -570,7 +570,7 @@
         "is-descriptor": {
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/is-descriptor/-/is-descriptor-1.0.2.tgz",
-          "integrity": "sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==",
+          "integrity": "sha1-OxWXRqZmBLBPjIFSS6NlxfFNhuw=",
           "dev": true,
           "requires": {
             "is-accessor-descriptor": "^1.0.0",
@@ -587,7 +587,7 @@
         "kind-of": {
           "version": "6.0.2",
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
-          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
+          "integrity": "sha1-ARRrNqYhjmTljzqNZt5df8b20FE=",
           "dev": true
         }
       }
@@ -601,7 +601,7 @@
     "basic-auth": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/basic-auth/-/basic-auth-2.0.1.tgz",
-      "integrity": "sha512-NF+epuEdnUYVlGuhaxbbq+dvJttwLnGY+YixlXlME5KpQ5W3CnXA5cVTneY3SPbPDRkcjMbifrwmFYcClgOZeg==",
+      "integrity": "sha1-uZgnm/R844NEtPPPkW1Gebv1Hjo=",
       "dev": true,
       "requires": {
         "safe-buffer": "5.1.2"
@@ -631,7 +631,7 @@
     "big.js": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.2.0.tgz",
-      "integrity": "sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==",
+      "integrity": "sha1-pfwpi4G54Nyi5FiCR4S2XFK6WI4=",
       "dev": true
     },
     "binary-extensions": {
@@ -714,7 +714,7 @@
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
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       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "integrity": "sha1-G0r0lV6zB3xQHCOHL8ZROBFYcTE=",
       "dev": true
     },
     "v8flags": {
@@ -8273,7 +8302,7 @@
     "validate-npm-package-license": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
-      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+      "integrity": "sha1-/JH2uce6FchX9MssXe/uw51PQQo=",
       "dev": true,
       "requires": {
         "spdx-correct": "^3.0.0",
@@ -8445,7 +8474,7 @@
     "webpack-dev-middleware": {
       "version": "1.12.2",
       "resolved": "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz",
-      "integrity": "sha512-FCrqPy1yy/sN6U/SaEZcHKRXGlqU0DUaEBL45jkUYoB8foVb6wCnbIJ1HKIx+qUFTW+3JpVcCJCxZ8VATL4e+A==",
+      "integrity": "sha1-+PwRIM47T8VoDO7LQ9d3lmshEF4=",
       "dev": true,
       "requires": {
         "memory-fs": "~0.4.1",
@@ -8524,7 +8553,7 @@
     "websocket-extensions": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
-      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
+      "integrity": "sha1-XS/yKXcAPsaHpLhwc9+7rBRszyk=",
       "dev": true
     },
     "when": {
@@ -8536,7 +8565,7 @@
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
-      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "integrity": "sha1-pFBD1U9YBTFtqNYvn1CRjT2nCwo=",
       "dev": true,
       "requires": {
         "isexe": "^2.0.0"
@@ -8657,7 +8686,7 @@
     "yargs-parser": {
       "version": "11.1.1",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-      "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+      "integrity": "sha1-h5oIZZc7yp9rq1y987HGfsfTvPQ=",
       "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
@@ -8667,7 +8696,7 @@
         "camelcase": {
           "version": "5.3.1",
           "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "integrity": "sha1-48mzFWnhBoEd8kL3FXJaH0xJQyA=",
           "dev": true
         }
       }
diff --git a/package.json b/package.json
index 520b08e31..f1a1ed1d2 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "grunt-contrib-uglify": "^1",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-eslint": "^20.1.0",
-    "grunt-saucelabs": "9.x",
+    "grunt-saucelabs": "github:nknapp/grunt-saucelabs",
     "grunt-webpack": "^1.0.8",
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",

From 133b96a2ff463dda71febbdae434057271e025ed Mon Sep 17 00:00:00 2001
From: Andrew Leedham <AndrewLeedham@Outlook.com>
Date: Wed, 3 Jul 2019 20:37:42 +0100
Subject: [PATCH 045/191] Add "Handlebars.VM.resolvePartial" to type
 definitions

- Handlebars.VM is actually not part of the API,
  but Handlebars.VM.resolvePartial is mentioned
  in the documentation and is thus now treated
  as part of the API.

Closes #1534
---
 lib/handlebars/runtime.js |  3 +++
 types/index.d.ts          | 11 +++++++++++
 types/test.ts             | 10 ++++++++++
 3 files changed, 24 insertions(+)

diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 3884e88c8..a73ebd280 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -209,6 +209,9 @@ export function wrapProgram(container, i, fn, data, declaredBlockParams, blockPa
   return prog;
 }
 
+/**
+ * This is currently part of the official API, therefore implementation details should not be changed.
+ */
 export function resolvePartial(partial, context, options) {
   if (!partial) {
     if (options.name === '@partial-block') {
diff --git a/types/index.d.ts b/types/index.d.ts
index d075e234a..99ec21364 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -7,6 +7,7 @@
  *   - Raanan Weber <https://github.com/RaananW>
  *   - Sergei Dorogin <https://github.com/evil-shrike>
  *   - webbiesdk <https://github.com/webbiesdk>
+ *   - Andrew Leedham <https://github.com/AndrewLeedham>
  * For full history prior to their migration to handlebars.js, please see:
  * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/index.d.ts
  */
@@ -20,6 +21,7 @@ declare namespace Handlebars {
   export type Template<T = any> = TemplateDelegate<T>|string;
 
   export interface RuntimeOptions {
+      name?: string;
       partial?: boolean;
       depths?: any[];
       helpers?: { [name: string]: Function };
@@ -147,6 +149,13 @@ declare namespace Handlebars {
       NullLiteral(): void;
       Hash(hash: hbs.AST.Hash): void;
   }
+
+  export namespace VM {
+    /**
+     * @deprecated
+     */
+    export function resolvePartial<T = any>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: RuntimeOptions): HandlebarsTemplateDelegate<T>;
+  }
 }
 
 /**
@@ -223,6 +232,8 @@ interface Logger {
   log(level: number, obj: string): void;
 }
 
+type CompilerInfo = [number/* revision */, string /* versions */];
+
 declare namespace hbs {
   namespace AST {
       interface Node {
diff --git a/types/test.ts b/types/test.ts
index f242f55bc..24951f48b 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -90,6 +90,16 @@ const parsedTmpl = Handlebars.parse('<p>Hello, my name is {{name}}.</p>', {
 
 const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}.</p>');
 
+// Custom partial resolution.
+const originalResolvePartial = Handlebars.VM.resolvePartial;
+Handlebars.VM.resolvePartial = <T>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: RuntimeOptions): HandlebarsTemplateDelegate<T> => {
+  const name = options.name;
+  // transform name.
+  options.name = name;
+  return originalResolvePartial(partial, context, options);
+}
+
+
 // #1544, allow custom helpers in knownHelpers
 Handlebars.compile('test', {
   knownHelpers: {

From 888750ec27e6b9126b3af61cf526590b09ef8bd9 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Sep 2019 21:32:41 +0200
Subject: [PATCH 046/191] fix typings of resolvePartial-options

- derived from the object structure seen in the debugger

closes #1534
---
 Gruntfile.js     |  6 +++---
 types/index.d.ts | 13 +++++++++++--
 types/test.ts    |  4 ++--
 3 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index fad1be391..7e028a052 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -5,15 +5,15 @@ module.exports = function(grunt) {
     pkg: grunt.file.readJSON('package.json'),
 
     eslint: {
-      options: {
-      },
       files: [
         '*.js',
         'bench/**/*.js',
         'tasks/**/*.js',
         'lib/**/!(*.min|parser).js',
         'spec/**/!(*.amd|json2|require).js',
-        'integration-testing/**/*.js'
+        'integration-testing/multi-nodejs-test/*.js',
+        'integration-testing/webpack-test/*.js',
+        'integration-testing/webpack-test/src/*.js'
       ]
     },
 
diff --git a/types/index.d.ts b/types/index.d.ts
index 99ec21364..a142119a4 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -8,6 +8,7 @@
  *   - Sergei Dorogin <https://github.com/evil-shrike>
  *   - webbiesdk <https://github.com/webbiesdk>
  *   - Andrew Leedham <https://github.com/AndrewLeedham>
+ *   - Nils Knappmeier <https://github.com/nknapp>
  * For full history prior to their migration to handlebars.js, please see:
  * https://github.com/DefinitelyTyped/DefinitelyTyped/commits/1ce60bdc07f10e0b076778c6c953271c072bc894/types/handlebars/index.d.ts
  */
@@ -21,7 +22,6 @@ declare namespace Handlebars {
   export type Template<T = any> = TemplateDelegate<T>|string;
 
   export interface RuntimeOptions {
-      name?: string;
       partial?: boolean;
       depths?: any[];
       helpers?: { [name: string]: Function };
@@ -150,11 +150,20 @@ declare namespace Handlebars {
       Hash(hash: hbs.AST.Hash): void;
   }
 
+
+  export interface ResolvePartialOptions {
+    name: string;
+    helpers?: { [name: string]: Function };
+    partials?: { [name: string]: HandlebarsTemplateDelegate };
+    decorators?: { [name: string]: Function };
+    data?: any;
+  }
+
   export namespace VM {
     /**
      * @deprecated
      */
-    export function resolvePartial<T = any>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: RuntimeOptions): HandlebarsTemplateDelegate<T>;
+    export function resolvePartial<T = any>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: ResolvePartialOptions): HandlebarsTemplateDelegate<T>;
   }
 }
 
diff --git a/types/test.ts b/types/test.ts
index 24951f48b..341a3c2f9 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -92,8 +92,8 @@ const parsedTmplWithoutOptions = Handlebars.parse('<p>Hello, my name is {{name}}
 
 // Custom partial resolution.
 const originalResolvePartial = Handlebars.VM.resolvePartial;
-Handlebars.VM.resolvePartial = <T>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: RuntimeOptions): HandlebarsTemplateDelegate<T> => {
-  const name = options.name;
+Handlebars.VM.resolvePartial = <T>(partial: HandlebarsTemplateDelegate<T> | undefined, context: any, options: Handlebars.ResolvePartialOptions): HandlebarsTemplateDelegate<T> => {
+  const name = options.name.replace(/my/,'your');
   // transform name.
   options.name = name;
   return originalResolvePartial(partial, context, options);

From 6ab48d8def548f013a13a08d40971f4d41d22d16 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Sep 2019 21:57:30 +0200
Subject: [PATCH 047/191] Update release notes

---
 release-notes.md | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 100fda684..ffdb176d0 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,29 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2-0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.0...master)
+
+## v4.2.0 - September 3rd, 2019
+Chore/Test:
+- Use custom `grunt-saucelab` with current sauce-connect proxy - f119497
+- Add framework for various integration tests - f9cce4d
+- Add integration test for webpack - a57b682
+
+
+Bugfixes:
+- [#1544](https://github.com/wycats/handlebars.js/issues/1544) - Typescript types: `knownHelpers` doesnt allow for custom helpers ([@NickCis](https://api.github.com/users/NickCis))
+- [#1534](https://github.com/wycats/handlebars.js/pull/1534) - Add typings for "Handlebars.VM.resolvePartial ([@AndrewLeedham](https://api.github.com/users/AndrewLeedham))
+
+Features:
+- [#1540](https://github.com/wycats/handlebars.js/pull/1540) - added "browser"-property to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
+
+Compatibility notes:
+- The new "browser"-property should not break anything, but you can never be sure. The integration test for webpack 
+  shows that it works, but if it doesn't please open an issue.
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2-0...v4.2.0)
 
 ## v4.1.2-0 - August 25th, 2019
 [#1540](https://github.com/wycats/handlebars.js/pull/1540) - added browser to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))

From 164c7ceea4ce074f70f2fefeba81e2e551757ea6 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Sep 2019 21:58:07 +0200
Subject: [PATCH 048/191] v4.2.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 9b52d6927..e80ca3ed7 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.2-0",
+  "version": "4.2.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 8685b6a4d..c99b588b8 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.1.2-0</version>
+		<version>4.2.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 1cc2e70e7..6641b0f52 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.1.2-0",
+  "version": "4.2.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 0bbd67110..6cbdcb48c 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.1.2-0';
+export const VERSION = '4.2.0';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index f1a1ed1d2..5a0e08475 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.1.2-0",
+  "version": "4.2.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From c55a7bed781b4cff132d18d778bf16268ce34f01 Mon Sep 17 00:00:00 2001
From: Paul Falgout <paul@otterball.com>
Date: Thu, 19 Sep 2019 16:19:09 +0900
Subject: [PATCH 049/191] fix: use cjs for browser fields

We should not be using pre-built files for the `browser`.  Resolves https://github.com/wycats/handlebars.js/issues/1553
---
 package.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 5a0e08475..607f4e169 100644
--- a/package.json
+++ b/package.json
@@ -64,8 +64,8 @@
   "main": "lib/index.js",
   "types": "types/index.d.ts",
   "browser": {
-    ".": "./dist/handlebars.min.js",
-    "./runtime": "./dist/handlebars.runtime.min.js"
+    ".": "./dist/cjs/handlebars.js",
+    "./runtime": "./dist/cjs/handlebars.runtime.js"
   },
   "bin": {
     "handlebars": "bin/handlebars"

From e47b5ec192392cee548c5c01dc85b72b0fc8419b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 18 Sep 2019 22:53:35 +0200
Subject: [PATCH 050/191] integration-tests for various webpack-scenarios

related to #1553

- registering helpers on an instance retrieved via
  `import`, compiling the template on an instance
   retrieved via `require`
- using `@roundingwellos/babel-plugin-handlebars-inline-precompile` to load plugins inline
---
 .../webpack-babel-test/.babelrc               | 11 +++++++
 .../webpack-babel-test/.gitignore             |  3 ++
 .../webpack-babel-test/package.json           | 24 ++++++++++++++
 .../src/handlebars-inline-precompile-test.js  | 12 +++++++
 .../webpack-babel-test/src/lib/assert.js      |  5 +++
 .../webpack-babel-test/test.sh                | 16 ++++++++++
 .../webpack-babel-test/webpack.config.js      | 32 +++++++++++++++++++
 .../src/handlebars-require-vs-import-test.js  | 10 ++++++
 8 files changed, 113 insertions(+)
 create mode 100644 integration-testing/webpack-babel-test/.babelrc
 create mode 100644 integration-testing/webpack-babel-test/.gitignore
 create mode 100644 integration-testing/webpack-babel-test/package.json
 create mode 100644 integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
 create mode 100644 integration-testing/webpack-babel-test/src/lib/assert.js
 create mode 100755 integration-testing/webpack-babel-test/test.sh
 create mode 100644 integration-testing/webpack-babel-test/webpack.config.js
 create mode 100644 integration-testing/webpack-test/src/handlebars-require-vs-import-test.js

diff --git a/integration-testing/webpack-babel-test/.babelrc b/integration-testing/webpack-babel-test/.babelrc
new file mode 100644
index 000000000..6c1ec732b
--- /dev/null
+++ b/integration-testing/webpack-babel-test/.babelrc
@@ -0,0 +1,11 @@
+{
+  "plugins": [
+    "@roundingwellos/babel-plugin-handlebars-inline-precompile"
+   // "istanbul"
+  ],
+  "presets": [
+    [
+      "@babel/preset-env"
+    ]
+  ]
+}
\ No newline at end of file
diff --git a/integration-testing/webpack-babel-test/.gitignore b/integration-testing/webpack-babel-test/.gitignore
new file mode 100644
index 000000000..3a8ec2b3f
--- /dev/null
+++ b/integration-testing/webpack-babel-test/.gitignore
@@ -0,0 +1,3 @@
+node_modules
+dist
+package-lock.json
\ No newline at end of file
diff --git a/integration-testing/webpack-babel-test/package.json b/integration-testing/webpack-babel-test/package.json
new file mode 100644
index 000000000..dd21ae0af
--- /dev/null
+++ b/integration-testing/webpack-babel-test/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "webpack-babel-test",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@babel/core": "^7.5.5",
+    "@babel/preset-env": "^7.5.5",
+    "@roundingwellos/babel-plugin-handlebars-inline-precompile": "^3.0.1",
+    "babel-loader": "^8.0.6",
+    "babel-plugin-istanbul": "^5.2.0",
+    "handlebars": "file:../..",
+    "handlebars-loader": "^1.7.1",
+    "nyc": "^14.1.1",
+    "webpack": "^4.39.3",
+    "webpack-cli": "^3.3.7"
+  },
+  "scripts": {
+    "build": "webpack --config webpack.config.js"
+  }
+}
diff --git a/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js b/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
new file mode 100644
index 000000000..7f764e328
--- /dev/null
+++ b/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
@@ -0,0 +1,12 @@
+import * as Handlebars from 'handlebars/runtime'
+import hbs from 'handlebars-inline-precompile';
+import {assertEquals} from "../../webpack-test/src/lib/assert";
+
+Handlebars.registerHelper('loud', function(text) {
+    return text.toUpperCase();
+});
+
+const template = hbs`{{loud name}}`;
+const output = template({name: 'yehuda'})
+
+assertEquals(output, 'YEHUDA')
\ No newline at end of file
diff --git a/integration-testing/webpack-babel-test/src/lib/assert.js b/integration-testing/webpack-babel-test/src/lib/assert.js
new file mode 100644
index 000000000..9f33188db
--- /dev/null
+++ b/integration-testing/webpack-babel-test/src/lib/assert.js
@@ -0,0 +1,5 @@
+export function assertEquals(actual, expected) {
+    if (actual !== expected) {
+        throw new Error(`Expected "${actual}" to equal "${expected}"`);
+    }
+}
diff --git a/integration-testing/webpack-babel-test/test.sh b/integration-testing/webpack-babel-test/test.sh
new file mode 100755
index 000000000..a45d5625f
--- /dev/null
+++ b/integration-testing/webpack-babel-test/test.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -e
+
+# Cleanup: package-lock and "npm ci" is not working with local dependencies
+rm dist package-lock.json -rf
+npm install
+npm run build
+
+for i in dist/*-test.js ; do
+  echo "----------------------"
+  echo "-- Running $i"
+  echo "----------------------"
+  node "$i"
+  echo "Success"
+done
\ No newline at end of file
diff --git a/integration-testing/webpack-babel-test/webpack.config.js b/integration-testing/webpack-babel-test/webpack.config.js
new file mode 100644
index 000000000..9ad0a09b2
--- /dev/null
+++ b/integration-testing/webpack-babel-test/webpack.config.js
@@ -0,0 +1,32 @@
+const fs = require('fs');
+
+const testFiles = fs.readdirSync('src');
+const entryPoints = {};
+testFiles
+    .filter(file => file.match(/-test.js$/))
+    .forEach(file => {
+        entryPoints[file] = `./src/${file}`;
+    });
+
+module.exports = {
+    entry: entryPoints,
+    output: {
+        filename: '[name]',
+        path: __dirname + '/dist'
+    },
+    module: {
+        rules: [
+            {
+                test: /\.js?$/,
+                exclude: /node_modules/,
+                use: {
+                    loader: 'babel-loader',
+                    options: { cacheDirectory: false },
+                }
+            }
+        ]
+    },
+    optimization: {
+        minimize: false
+    }
+};
diff --git a/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js b/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js
new file mode 100644
index 000000000..13e2c97d7
--- /dev/null
+++ b/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js
@@ -0,0 +1,10 @@
+import * as HandlebarsViaImport from 'handlebars';
+const HandlebarsViaRequire = require('handlebars');
+import {assertEquals} from './lib/assert';
+
+HandlebarsViaImport.registerHelper('loud', function(text) {
+    return text.toUpperCase();
+});
+
+const template = HandlebarsViaRequire.compile('Author: {{loud author}}');
+assertEquals(template({author: 'Yehuda'}), 'Author: YEHUDA');

From 00b4f2ff98bf6285cc551f090166a92a70196124 Mon Sep 17 00:00:00 2001
From: Caleb Mazalevskis <maikuolan@gmail.com>
Date: Fri, 12 Apr 2019 14:02:48 +0800
Subject: [PATCH 051/191] Fix some small typos.

---
 lib/handlebars/compiler/whitespace-control.js | 2 +-
 lib/handlebars/runtime.js                     | 2 +-
 release-notes.md                              | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/handlebars/compiler/whitespace-control.js b/lib/handlebars/compiler/whitespace-control.js
index e11483c91..8ebfbef57 100644
--- a/lib/handlebars/compiler/whitespace-control.js
+++ b/lib/handlebars/compiler/whitespace-control.js
@@ -206,7 +206,7 @@ function omitLeft(body, i, multiple) {
     return;
   }
 
-  // We omit the last node if it's whitespace only and not preceeded by a non-content node.
+  // We omit the last node if it's whitespace only and not preceded by a non-content node.
   let original = current.value;
   current.value = current.value.replace(multiple ? (/\s+$/) : (/[ \t]+$/), '');
   current.leftStripped = current.value !== original;
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index a73ebd280..a00f71e06 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -32,7 +32,7 @@ export function template(templateSpec, env) {
   templateSpec.main.decorator = templateSpec.main_d;
 
   // Note: Using env.VM references rather than local var references throughout this section to allow
-  // for external users to override these as psuedo-supported APIs.
+  // for external users to override these as pseudo-supported APIs.
   env.VM.checkRevision(templateSpec.compiler);
 
   function invokePartialWrapper(partial, context, options) {
diff --git a/release-notes.md b/release-notes.md
index ffdb176d0..6a93164b1 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -406,7 +406,7 @@ Compatibility notes:
 - Lines containing only block statements and whitespace are now removed. This matches the Mustache spec but may cause issues with code that expects whitespace to exist but would not otherwise.
 - Partials that are standalone will now indent their rendered content
 - `AST.ProgramNode`'s signature has changed. 
-- Numerious methods/features removed from psuedo-API classes
+- Numerious methods/features removed from pseudo-API classes
   - `JavaScriptCompiler.register`
   - `JavaScriptCompiler.replaceStack` no longer supports non-inline replace
   - `Compiler.disassemble`
@@ -597,7 +597,7 @@ Compatibility notes:
 ## v1.0.11 / 1.0.0-rc4 - May 13 2013
 
 - [#458](https://github.com/wycats/handlebars.js/issues/458) - Fix `./foo` syntax ([@jpfiset](https://github.com/jpfiset))
-- [#460](https://github.com/wycats/handlebars.js/issues/460) - Allow `:` in unescaped identifers ([@jpfiset](https://github.com/jpfiset))
+- [#460](https://github.com/wycats/handlebars.js/issues/460) - Allow `:` in unescaped identifiers ([@jpfiset](https://github.com/jpfiset))
 - [#471](https://github.com/wycats/handlebars.js/issues/471) - Create release notes (These!)
 - [#456](https://github.com/wycats/handlebars.js/issues/456) - Allow escaping of `\\`
 - [#211](https://github.com/wycats/handlebars.js/issues/211) - Fix exception in `escapeExpression`

From 35bcd4405fad758520308754f05b88c97c7b380c Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 20 Sep 2019 19:40:10 +0200
Subject: [PATCH 052/191] Update release notes

---
 release-notes.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 6a93164b1..48fc00146 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,17 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.1...master)
+
+## v4.2.1 - September 20th, 2019
+Bugfixes: 
+
+- The "browser" property in the package.json has been updated to use the common-js builds instead of the minified UMD - c55a7be, #1553
+
+Compatibility notes:
+- No compatibility issues should arise
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.0...v4.2.1)
 
 ## v4.2.0 - September 3rd, 2019
 Chore/Test:

From fff3e40402c9f9cd790984560658646a26e1c930 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 20 Sep 2019 19:40:48 +0200
Subject: [PATCH 053/191] v4.2.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index e80ca3ed7..f590c5669 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index c99b588b8..04c194afd 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.2.0</version>
+		<version>4.2.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 6641b0f52..8f1e063fb 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 6cbdcb48c..b0df08e0c 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.2.0';
+export const VERSION = '4.2.1';
 export const COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index 607f4e169..def528265 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 2078c727c627f25d4a149962f05c1e069beb18bc Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 16 Sep 2019 23:42:09 +0200
Subject: [PATCH 054/191] Disallow calling "helperMissing" and
 "blockHelperMissing" directly

closes #1558
---
 .../compiler/javascript-compiler.js           | 32 ++++++++---
 lib/handlebars/helpers.js                     |  9 +++
 lib/handlebars/runtime.js                     | 35 ++++++------
 lib/handlebars/utils.js                       |  1 +
 spec/security.js                              | 56 +++++++++++++++++++
 types/index.d.ts                              |  1 +
 6 files changed, 109 insertions(+), 25 deletions(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index ff98ad9e4..1b9b2318d 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -311,7 +311,7 @@ JavaScriptCompiler.prototype = {
   // replace it on the stack with the result of properly
   // invoking blockHelperMissing.
   blockValue: function(name) {
-    let blockHelperMissing = this.aliasable('helpers.blockHelperMissing'),
+    let blockHelperMissing = this.aliasable('container.hooks.blockHelperMissing'),
         params = [this.contextName(0)];
     this.setupHelperArgs(name, 0, params);
 
@@ -329,7 +329,7 @@ JavaScriptCompiler.prototype = {
   // On stack, after, if lastHelper: value
   ambiguousBlockValue: function() {
     // We're being a bit cheeky and reusing the options value from the prior exec
-    let blockHelperMissing = this.aliasable('helpers.blockHelperMissing'),
+    let blockHelperMissing = this.aliasable('container.hooks.blockHelperMissing'),
         params = [this.contextName(0)];
     this.setupHelperArgs('', 0, params, true);
 
@@ -622,18 +622,32 @@ JavaScriptCompiler.prototype = {
   // If the helper is not found, `helperMissing` is called.
   invokeHelper: function(paramSize, name, isSimple) {
     let nonHelper = this.popStack(),
-        helper = this.setupHelper(paramSize, name),
-        simple = isSimple ? [helper.name, ' || '] : '';
+        helper = this.setupHelper(paramSize, name);
 
-    let lookup = ['('].concat(simple, nonHelper);
+    let possibleFunctionCalls = [];
+
+    if (isSimple) { // direct call to helper
+      possibleFunctionCalls.push(helper.name);
+    }
+    // call a function from the input object
+    possibleFunctionCalls.push(nonHelper);
     if (!this.options.strict) {
-      lookup.push(' || ', this.aliasable('helpers.helperMissing'));
+      possibleFunctionCalls.push(this.aliasable('container.hooks.helperMissing'));
     }
-    lookup.push(')');
 
-    this.push(this.source.functionCall(lookup, 'call', helper.callParams));
+    let functionLookupCode = ['(', this.itemsSeparatedBy(possibleFunctionCalls, '||'), ')'];
+    let functionCall = this.source.functionCall(functionLookupCode, 'call', helper.callParams);
+    this.push(functionCall);
   },
 
+  itemsSeparatedBy: function(items, separator) {
+    let result = [];
+    result.push(items[0]);
+    for (let i = 1; i < items.length; i++) {
+      result.push(separator, items[i]);
+    }
+    return result;
+  },
   // [invokeKnownHelper]
   //
   // On stack, before: hash, inverse, program, params..., ...
@@ -673,7 +687,7 @@ JavaScriptCompiler.prototype = {
       lookup[0] = '(helper = ';
       lookup.push(
         ' != null ? helper : ',
-        this.aliasable('helpers.helperMissing')
+        this.aliasable('container.hooks.helperMissing')
       );
     }
 
diff --git a/lib/handlebars/helpers.js b/lib/handlebars/helpers.js
index 7a4365aea..804796820 100644
--- a/lib/handlebars/helpers.js
+++ b/lib/handlebars/helpers.js
@@ -15,3 +15,12 @@ export function registerDefaultHelpers(instance) {
   registerLookup(instance);
   registerWith(instance);
 }
+
+export function moveHelperToHooks(instance, helperName, keepHelper) {
+  if (instance.helpers[helperName]) {
+    instance.hooks[helperName] = instance.helpers[helperName];
+    if (!keepHelper) {
+      delete instance.helpers[helperName];
+    }
+  }
+}
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index a00f71e06..ce4630463 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -1,6 +1,7 @@
 import * as Utils from './utils';
 import Exception from './exception';
-import { COMPILER_REVISION, REVISION_CHANGES, createFrame } from './base';
+import {COMPILER_REVISION, createFrame, REVISION_CHANGES} from './base';
+import {moveHelperToHooks} from './helpers';
 
 export function checkRevision(compilerInfo) {
   const compilerRevision = compilerInfo && compilerInfo[0] || 1,
@@ -21,6 +22,7 @@ export function checkRevision(compilerInfo) {
 }
 
 export function template(templateSpec, env) {
+
   /* istanbul ignore next */
   if (!env) {
     throw new Exception('No environment passed to template');
@@ -42,13 +44,15 @@ export function template(templateSpec, env) {
         options.ids[0] = true;
       }
     }
-
     partial = env.VM.resolvePartial.call(this, partial, context, options);
-    let result = env.VM.invokePartial.call(this, partial, context, options);
+
+    let optionsWithHooks = Utils.extend({}, options, {hooks: this.hooks});
+
+    let result = env.VM.invokePartial.call(this, partial, context, optionsWithHooks);
 
     if (result == null && env.compile) {
       options.partials[options.name] = env.compile(partial, templateSpec.compilerOptions, env);
-      result = options.partials[options.name](context, options);
+      result = options.partials[options.name](context, optionsWithHooks);
     }
     if (result != null) {
       if (options.indent) {
@@ -115,15 +119,6 @@ export function template(templateSpec, env) {
       }
       return value;
     },
-    merge: function(param, common) {
-      let obj = param || common;
-
-      if (param && common && (param !== common)) {
-        obj = Utils.extend({}, common, param);
-      }
-
-      return obj;
-    },
     // An empty object to use as replacement for null-contexts
     nullContext: Object.seal({}),
 
@@ -158,19 +153,27 @@ export function template(templateSpec, env) {
 
   ret._setup = function(options) {
     if (!options.partial) {
-      container.helpers = container.merge(options.helpers, env.helpers);
+      container.helpers = Utils.extend({}, env.helpers, options.helpers);
 
       if (templateSpec.usePartial) {
-        container.partials = container.merge(options.partials, env.partials);
+        container.partials = Utils.extend({}, env.partials, options.partials);
       }
       if (templateSpec.usePartial || templateSpec.useDecorators) {
-        container.decorators = container.merge(options.decorators, env.decorators);
+        container.decorators = Utils.extend({}, env.decorators, options.decorators);
       }
+
+      container.hooks = {};
+      let keepHelper = options.allowCallsToHelperMissing;
+      moveHelperToHooks(container, 'helperMissing', keepHelper);
+      moveHelperToHooks(container, 'blockHelperMissing', keepHelper);
+
     } else {
       container.helpers = options.helpers;
       container.partials = options.partials;
       container.decorators = options.decorators;
+      container.hooks = options.hooks;
     }
+
   };
 
   ret._child = function(i, data, blockParams, depths) {
diff --git a/lib/handlebars/utils.js b/lib/handlebars/utils.js
index 2584601ef..8e1a4014f 100644
--- a/lib/handlebars/utils.js
+++ b/lib/handlebars/utils.js
@@ -1,3 +1,4 @@
+
 const escape = {
   '&': '&amp;',
   '<': '&lt;',
diff --git a/spec/security.js b/spec/security.js
index 4a7d83773..4c092b1c0 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -32,4 +32,60 @@ describe('security issues', function() {
 
         });
     });
+
+    describe('GH-xxxx: Prevent explicit call of helperMissing-helpers', function() {
+        if (!Handlebars.compile) {
+            return;
+        }
+
+        describe('without the option "allowExplicitCallOfHelperMissing"', function() {
+            it('should throw an exception when calling  "{{helperMissing}}" ', function() {
+                shouldThrow(function() {
+                    var template = Handlebars.compile('{{helperMissing}}');
+                    template({});
+                }, Error);
+            });
+            it('should throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
+                shouldThrow(function() {
+                    var template = Handlebars.compile('{{#helperMissing}}{{/helperMissing}}');
+                    template({});
+                }, Error);
+            });
+            it('should throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
+                var functionCalls = [];
+                shouldThrow(function() {
+                    var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
+                    template({ fn: function() { functionCalls.push('called'); }});
+                }, Error);
+                equals(functionCalls.length, 0);
+            });
+            it('should throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
+                shouldThrow(function() {
+                    var template = Handlebars.compile('{{#blockHelperMissing .}}{{/blockHelperMissing}}');
+                    template({ fn: function() { return 'functionInData';}});
+                }, Error);
+            });
+        });
+
+        describe('with the option "allowCallsToHelperMissing" set to true', function() {
+            it('should not throw an exception when calling  "{{helperMissing}}" ', function() {
+                    var template = Handlebars.compile('{{helperMissing}}');
+                    template({}, {allowCallsToHelperMissing: true});
+            });
+            it('should not throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
+                    var template = Handlebars.compile('{{#helperMissing}}{{/helperMissing}}');
+                    template({}, {allowCallsToHelperMissing: true});
+            });
+            it('should not throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
+                    var functionCalls = [];
+                    var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
+                    template({ fn: function() { functionCalls.push('called'); }}, {allowCallsToHelperMissing: true});
+                    equals(functionCalls.length, 1);
+            });
+            it('should not throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
+                    var template = Handlebars.compile('{{#blockHelperMissing true}}sdads{{/blockHelperMissing}}');
+                    template({}, {allowCallsToHelperMissing: true});
+            });
+        });
+    });
 });
diff --git a/types/index.d.ts b/types/index.d.ts
index a142119a4..bf8d17564 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -29,6 +29,7 @@ declare namespace Handlebars {
       decorators?: { [name: string]: Function };
       data?: any;
       blockParams?: any[];
+      allowCallsToHelperMissing: boolean;
   }
 
   export interface HelperOptions {

From 06b7224ed94ad00d342be416250305a8cb92112b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 21 Sep 2019 16:00:43 +0200
Subject: [PATCH 055/191] adjust compiler revision

---
 lib/handlebars/base.js     | 5 +++--
 spec/expected/empty.amd.js | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index b0df08e0c..db3f40277 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
 export const VERSION = '4.2.1';
-export const COMPILER_REVISION = 7;
+export const COMPILER_REVISION = 8;
 
 export const REVISION_CHANGES = {
   1: '<= 1.0.rc.2', // 1.0.rc.2 is actually rev2 but doesn't report it
@@ -14,7 +14,8 @@ export const REVISION_CHANGES = {
   4: '== 1.x.x',
   5: '== 2.0.0-alpha.x',
   6: '>= 2.0.0-beta.1',
-  7: '>= 4.0.0'
+  7: '>= 4.0.0 <4.3.0',
+  8: '>= 4.3.0'
 };
 
 const objectType = '[object Object]';
diff --git a/spec/expected/empty.amd.js b/spec/expected/empty.amd.js
index 1cf1eabc9..9728609ef 100644
--- a/spec/expected/empty.amd.js
+++ b/spec/expected/empty.amd.js
@@ -1,6 +1,6 @@
 define(['handlebars.runtime'], function(Handlebars) {
   Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
-return templates['empty'] = template({"compiler":[7,">= 4.0.0"],"main":function(container,depth0,helpers,partials,data) {
+return templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
     return "";
 },"useData":true});
 });

From bba65605b111965bc1e1643a489a3b3c56f190b3 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 24 Sep 2019 08:03:52 +0200
Subject: [PATCH 056/191] Update release notes

---
 release-notes.md | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 48fc00146..8d11f07ba 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,43 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.0...master)
+
+## v4.3.0 - September 24th, 2019
+Fixes:
+
+- Security: Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
+- Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
+
+Features:
+
+- Add new runtime option `allowCallsToHelperMissing` to allow calling `blockHelperMissing` and `helperMissing`.
+
+Breaking changes:
+
+Compatibility notes:
+- Compiler revision increased - 06b7224
+  - This means that template compiled with versions prior to 4.3.0 will not work with runtimes >= 4.3.0
+    The increase was done because the "helperMissing" and "blockHelperMissing" are now moved from the helpers
+    to the internal "container.hooks" object, so old templates will not be able to call them anymore. We suggest
+    that you always recompile your templates with the latest compiler in your build pipelines.
+
+- Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
+  - Calling "helperMissing" and "blockHelperMissing" directly from a template (like in `{{blockHelperMissing}}` was 
+    never intended and was part of the exploits that have been revealed early in 2019 
+    (see https://github.com/wycats/handlebars.js/issues/1495). *It is also part of a new exploit that 
+    is not captured by the earlier fix.* In order to harden Handlebars against such exploits, calling thos helpers 
+    is now not possible anymore. *Overriding* those helpers is still possible.
+  - If you really need this behavior, you can set the runtime option `allowCallsToHelperMissing` to `true` and the
+    calls will again be possible
+
+Both bullet points imly that Handlebars is not 100% percent compatible to 4.2.0, despite the minor version bump.
+
+We consider it more important to resolve a major security issue than to maintain 100% compatibility.
+
+    
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.2.1...v4.3.0)
 
 ## v4.2.1 - September 20th, 2019
 Bugfixes: 

From a89081d440a9da9f3f25835f47de837907b0094a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 24 Sep 2019 08:04:35 +0200
Subject: [PATCH 057/191] v4.3.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index f590c5669..60e09e4d4 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.2.1",
+  "version": "4.3.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 04c194afd..ff656b2ea 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.2.1</version>
+		<version>4.3.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 8f1e063fb..a8cfd290a 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.2.1",
+  "version": "4.3.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index db3f40277..2703dafd6 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.2.1';
+export const VERSION = '4.3.0';
 export const COMPILER_REVISION = 8;
 
 export const REVISION_CHANGES = {
diff --git a/package.json b/package.json
index def528265..6b56332cb 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.2.1",
+  "version": "4.3.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From d148d7cb1fc11106426d9741d784cb60dcddb7c3 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 24 Sep 2019 08:36:46 +0200
Subject: [PATCH 058/191] check "allowCallsToHelperMissing"

---
 types/test.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/types/test.ts b/types/test.ts
index 341a3c2f9..9ecc2d167 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -97,7 +97,7 @@ Handlebars.VM.resolvePartial = <T>(partial: HandlebarsTemplateDelegate<T> | unde
   // transform name.
   options.name = name;
   return originalResolvePartial(partial, context, options);
-}
+};
 
 
 // #1544, allow custom helpers in knownHelpers
@@ -107,3 +107,5 @@ Handlebars.compile('test', {
     customHelper: true
   }
 });
+
+Handlebars.compile('test')({},{allowCallsToHelperMissing: true});

From 93444c58db259bb1e5073d4e815a5aab65440e33 Mon Sep 17 00:00:00 2001
From: Matt Hinchliffe <i-like-robots@users.noreply.github.com>
Date: Tue, 24 Sep 2019 14:02:55 +0100
Subject: [PATCH 059/191] Ensure allowCallsToHelperMissing runtime option is
 optional in typings

---
 types/index.d.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index bf8d17564..a1b1693e9 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -29,7 +29,7 @@ declare namespace Handlebars {
       decorators?: { [name: string]: Function };
       data?: any;
       blockParams?: any[];
-      allowCallsToHelperMissing: boolean;
+      allowCallsToHelperMissing?: boolean;
   }
 
   export interface HelperOptions {

From 64ecb9ea84f691bac1427879c5088d01b46b4c7a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 24 Sep 2019 22:28:52 +0200
Subject: [PATCH 060/191] add test for #1560

---
 types/test.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/types/test.ts b/types/test.ts
index 9ecc2d167..72d6ff70a 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -109,3 +109,5 @@ Handlebars.compile('test', {
 });
 
 Handlebars.compile('test')({},{allowCallsToHelperMissing: true});
+
+Handlebars.compile('test')({},{});
\ No newline at end of file

From 12668388294ee8bb1c07c0d9d5c6ee083910f3a5 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 24 Sep 2019 23:45:09 +0200
Subject: [PATCH 061/191] do not break on precompiled templates from Handlebars
 >=4.0.0 <4.3.0

- The version-range above have compiler version 7 and
  precompiled templates expecte the (block)
  HelperMissing-functions in "helpers" and not in "container.hooks".
- Handlebars now accepts precompiled templates of version 7.
- If a precompiled template with version 7 is loaded,
  the (block)HelperMissing-functions are kept in "helpers"
---
 lib/handlebars/base.js    |  1 +
 lib/handlebars/runtime.js | 36 +++++++++++++++++++++---------------
 spec/regressions.js       | 32 ++++++++++++++++++++++++++++++++
 spec/runtime.js           |  2 +-
 4 files changed, 55 insertions(+), 16 deletions(-)

diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 2703dafd6..a327fc6c7 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -6,6 +6,7 @@ import logger from './logger';
 
 export const VERSION = '4.3.0';
 export const COMPILER_REVISION = 8;
+export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
 export const REVISION_CHANGES = {
   1: '<= 1.0.rc.2', // 1.0.rc.2 is actually rev2 but doesn't report it
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index ce4630463..763016de7 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -1,23 +1,25 @@
 import * as Utils from './utils';
 import Exception from './exception';
-import {COMPILER_REVISION, createFrame, REVISION_CHANGES} from './base';
+import {COMPILER_REVISION, createFrame, LAST_COMPATIBLE_COMPILER_REVISION, REVISION_CHANGES} from './base';
 import {moveHelperToHooks} from './helpers';
 
 export function checkRevision(compilerInfo) {
   const compilerRevision = compilerInfo && compilerInfo[0] || 1,
         currentRevision = COMPILER_REVISION;
 
-  if (compilerRevision !== currentRevision) {
-    if (compilerRevision < currentRevision) {
-      const runtimeVersions = REVISION_CHANGES[currentRevision],
-            compilerVersions = REVISION_CHANGES[compilerRevision];
-      throw new Exception('Template was precompiled with an older version of Handlebars than the current runtime. ' +
-            'Please update your precompiler to a newer version (' + runtimeVersions + ') or downgrade your runtime to an older version (' + compilerVersions + ').');
-    } else {
-      // Use the embedded version info since the runtime doesn't know about this revision yet
-      throw new Exception('Template was precompiled with a newer version of Handlebars than the current runtime. ' +
-            'Please update your runtime to a newer version (' + compilerInfo[1] + ').');
-    }
+  if (compilerRevision >= LAST_COMPATIBLE_COMPILER_REVISION && compilerRevision <= COMPILER_REVISION) {
+    return;
+  }
+
+  if (compilerRevision < LAST_COMPATIBLE_COMPILER_REVISION) {
+    const runtimeVersions = REVISION_CHANGES[currentRevision],
+          compilerVersions = REVISION_CHANGES[compilerRevision];
+    throw new Exception('Template was precompiled with an older version of Handlebars than the current runtime. ' +
+          'Please update your precompiler to a newer version (' + runtimeVersions + ') or downgrade your runtime to an older version (' + compilerVersions + ').');
+  } else {
+    // Use the embedded version info since the runtime doesn't know about this revision yet
+    throw new Exception('Template was precompiled with a newer version of Handlebars than the current runtime. ' +
+          'Please update your runtime to a newer version (' + compilerInfo[1] + ').');
   }
 }
 
@@ -37,6 +39,9 @@ export function template(templateSpec, env) {
   // for external users to override these as pseudo-supported APIs.
   env.VM.checkRevision(templateSpec.compiler);
 
+  // backwards compatibility for precompiled templates with compiler-version 7 (<4.3.0)
+  const templateWasPrecompiledWithCompilerV7 = templateSpec.compiler && templateSpec.compiler[0] === 7;
+
   function invokePartialWrapper(partial, context, options) {
     if (options.hash) {
       context = Utils.extend({}, context, options.hash);
@@ -163,9 +168,10 @@ export function template(templateSpec, env) {
       }
 
       container.hooks = {};
-      let keepHelper = options.allowCallsToHelperMissing;
-      moveHelperToHooks(container, 'helperMissing', keepHelper);
-      moveHelperToHooks(container, 'blockHelperMissing', keepHelper);
+
+      let keepHelperInHelpers = options.allowCallsToHelperMissing || templateWasPrecompiledWithCompilerV7;
+      moveHelperToHooks(container, 'helperMissing', keepHelperInHelpers);
+      moveHelperToHooks(container, 'blockHelperMissing', keepHelperInHelpers);
 
     } else {
       container.helpers = options.helpers;
diff --git a/spec/regressions.js b/spec/regressions.js
index 1678d80c1..a06360c2b 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -291,4 +291,36 @@ describe('Regressions', function() {
     };
     shouldCompileToWithPartials(string, [{}, {}, partials], true, 'template  block  partial  block  template');
   });
+
+  describe('GH-1561: 4.3.x should still work with precompiled templates from 4.0.0 <= x < 4.3.0', function() {
+
+    it('should compile and execute templates', function() {
+      var newHandlebarsInstance = Handlebars.create();
+
+      registerTemplate(newHandlebarsInstance);
+      newHandlebarsInstance.registerHelper('loud', function(value) {
+        return value.toUpperCase();
+      });
+      let result = newHandlebarsInstance.templates['test.hbs']({name: 'yehuda'});
+      equals(result.trim(), 'YEHUDA');
+    });
+
+    it('should call "helperMissing" if a helper is missing', function() {
+      var newHandlebarsInstance = Handlebars.create();
+
+      shouldThrow(() => {
+        registerTemplate(newHandlebarsInstance);
+        newHandlebarsInstance.templates['test.hbs']({});
+      }, Handlebars.Exception, 'Missing helper: "loud"');
+    });
+
+    // This is a only slightly modified precompiled templated from compiled with 4.2.1
+    function registerTemplate(Handlebars) {
+      var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+      templates['test.hbs'] = template({'compiler': [7, '>= 4.0.0'], 'main': function(container, depth0, helpers, partials, data) {
+          return container.escapeExpression((helpers.loud || (depth0 && depth0.loud) || helpers.helperMissing).call(depth0 != null ? depth0 : (container.nullContext || {}), (depth0 != null ? depth0.name : depth0), {'name': 'loud', 'hash': {}, 'data': data}))
+              + '\n\n';
+        }, 'useData': true});
+    }
+  });
 });
diff --git a/spec/runtime.js b/spec/runtime.js
index a4830ad0c..3549640b7 100644
--- a/spec/runtime.js
+++ b/spec/runtime.js
@@ -21,7 +21,7 @@ describe('runtime', function() {
       shouldThrow(function() {
         Handlebars.template({
           main: {},
-          compiler: [Handlebars.COMPILER_REVISION - 1]
+          compiler: [Handlebars.LAST_COMPATIBLE_COMPILER_REVISION - 1]
         });
       }, Error, /Template was precompiled with an older version of Handlebars than the current runtime/);
       shouldThrow(function() {

From c2a17c7b30009059743e3cb3c677d0adc2002775 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 25 Sep 2019 00:00:51 +0200
Subject: [PATCH 062/191] fix saucelabs tests (internet explorer)

---
 spec/regressions.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spec/regressions.js b/spec/regressions.js
index a06360c2b..99042b5a2 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -308,7 +308,7 @@ describe('Regressions', function() {
     it('should call "helperMissing" if a helper is missing', function() {
       var newHandlebarsInstance = Handlebars.create();
 
-      shouldThrow(() => {
+      shouldThrow(function() {
         registerTemplate(newHandlebarsInstance);
         newHandlebarsInstance.templates['test.hbs']({});
       }, Handlebars.Exception, 'Missing helper: "loud"');

From e3639e240755ef713e128e7c67d30443ea01b732 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 25 Sep 2019 00:18:02 +0200
Subject: [PATCH 063/191] fix saucelabs tests (internet explorer)

---
 spec/regressions.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spec/regressions.js b/spec/regressions.js
index 99042b5a2..58db65bcd 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -301,7 +301,7 @@ describe('Regressions', function() {
       newHandlebarsInstance.registerHelper('loud', function(value) {
         return value.toUpperCase();
       });
-      let result = newHandlebarsInstance.templates['test.hbs']({name: 'yehuda'});
+      var result = newHandlebarsInstance.templates['test.hbs']({name: 'yehuda'});
       equals(result.trim(), 'YEHUDA');
     });
 

From 2d5579078b36734b7db7f65b24a1ce5340164f78 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 25 Sep 2019 00:31:48 +0200
Subject: [PATCH 064/191] Update release notes

---
 release-notes.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 8d11f07ba..45c90a162 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,17 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.1...master)
+
+## v4.3.1 - September 25th, 2019
+Fixes:
+
+- do not break on precompiled templates from Handlebars >=4.0.0 <4.3.0 - 1266838, #1561
+- Ensure allowCallsToHelperMissing runtime option is optional in typings - 93444c5, 64ecb9e, #1560
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.0...v4.3.1)
 
 ## v4.3.0 - September 24th, 2019
 Fixes:

From 050cca0866b3496852d9b198141807c32e4dae81 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 25 Sep 2019 00:32:32 +0200
Subject: [PATCH 065/191] v4.3.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 60e09e4d4..f26015d4c 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index ff656b2ea..7f708a582 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.3.0</version>
+		<version>4.3.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index a8cfd290a..09278636f 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index a327fc6c7..631f5b0f8 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.3.0';
+export const VERSION = '4.3.1';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 6b56332cb..f616e4879 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 213c0bbe3c4bd83a534d67384e5afa0000347ff6 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 26 Sep 2019 23:55:14 +0200
Subject: [PATCH 066/191] Use Object.prototype.propertyIsEnumerable to check
 for constructors

- context.propertyIsEnumerable can be replaced
  via __definedGetter__
- This is a fix specific to counter a known RCE exploit.
  Other fixes will follow.

closes #1563
---
 .../compiler/javascript-compiler.js           | 36 +++++++++++--------
 spec/security.js                              | 12 ++++++-
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 1b9b2318d..3491aad8e 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -14,12 +14,20 @@ JavaScriptCompiler.prototype = {
   // alternative compiled forms for name lookup and buffering semantics
   nameLookup: function(parent, name/* , type*/) {
     if (name === 'constructor') {
-      return ['(', parent, '.propertyIsEnumerable(\'constructor\') ? ', parent, '.constructor : undefined', ')'];
+      return ['(', _isEnumerable(), '?', _actualLookup(), ' : undefined)'];
     }
-    if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
-      return [parent, '.', name];
-    } else {
-      return [parent, '[', JSON.stringify(name), ']'];
+    return _actualLookup();
+
+    function _isEnumerable() {
+      return `Object.prototype.propertyIsEnumerable.call(${parent},'constructor')`;
+    }
+
+    function _actualLookup() {
+      if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
+        return [parent, '.', name];
+      } else {
+        return [parent, '[', JSON.stringify(name), ']'];
+      }
     }
   },
   depthedLookup: function(name) {
@@ -339,9 +347,9 @@ JavaScriptCompiler.prototype = {
     params.splice(1, 0, current);
 
     this.pushSource([
-        'if (!', this.lastHelper, ') { ',
-          current, ' = ', this.source.functionCall(blockHelperMissing, 'call', params),
-        '}']);
+      'if (!', this.lastHelper, ') { ',
+      current, ' = ', this.source.functionCall(blockHelperMissing, 'call', params),
+      '}']);
   },
 
   // [appendContent]
@@ -686,16 +694,16 @@ JavaScriptCompiler.prototype = {
     if (!this.options.strict) {
       lookup[0] = '(helper = ';
       lookup.push(
-        ' != null ? helper : ',
-        this.aliasable('container.hooks.helperMissing')
+          ' != null ? helper : ',
+          this.aliasable('container.hooks.helperMissing')
       );
     }
 
     this.push([
-        '(', lookup,
-        (helper.paramsInit ? ['),(', helper.paramsInit] : []), '),',
-        '(typeof helper === ', this.aliasable('"function"'), ' ? ',
-        this.source.functionCall('helper', 'call', helper.callParams), ' : helper))'
+      '(', lookup,
+      (helper.paramsInit ? ['),(', helper.paramsInit] : []), '),',
+      '(typeof helper === ', this.aliasable('"function"'), ' ? ',
+      this.source.functionCall('helper', 'call', helper.callParams), ' : helper))'
     ]);
   },
 
diff --git a/spec/security.js b/spec/security.js
index 4c092b1c0..418541f67 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -33,7 +33,7 @@ describe('security issues', function() {
         });
     });
 
-    describe('GH-xxxx: Prevent explicit call of helperMissing-helpers', function() {
+    describe('GH-1558: Prevent explicit call of helperMissing-helpers', function() {
         if (!Handlebars.compile) {
             return;
         }
@@ -88,4 +88,14 @@ describe('security issues', function() {
             });
         });
     });
+
+    describe('GH-1563', function() {
+        it('should not allow to access constructor after overriding via __defineGetter__', function() {
+            shouldCompileTo('{{__defineGetter__ "undefined" valueOf }}' +
+                '{{#with __lookupGetter__ }}' +
+                '{{__defineGetter__ "propertyIsEnumerable" (this.bind (this.bind 1)) }}' +
+                '{{constructor.name}}' +
+                '{{/with}}', {}, '');
+        });
+    });
 });

From c5cbeac039de4a05113dbe1f5e14f29175228c78 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 26 Sep 2019 23:58:13 +0200
Subject: [PATCH 067/191] Update release notes

---
 release-notes.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 45c90a162..9c21c53b0 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,15 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.2...master)
+
+## v4.3.2 - September 26th, 2019
+- Use Object.prototype.propertyIsEnumerable to check for constructors - 213c0bb, #1563
+
+Compatibility notes:
+- There are no breaking changes
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.1...v4.3.2)
 
 ## v4.3.1 - September 25th, 2019
 Fixes:

From 2357140c68d17cb4f8ab74431e8737de6b4b39b5 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 26 Sep 2019 23:58:48 +0200
Subject: [PATCH 068/191] v4.3.2

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index f26015d4c..3a6ce5344 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.1",
+  "version": "4.3.2",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 7f708a582..346e1174c 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.3.1</version>
+		<version>4.3.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 09278636f..1842c2796 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.1",
+  "version": "4.3.2",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 631f5b0f8..205978f49 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.3.1';
+export const VERSION = '4.3.2';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index f616e4879..1ae2c833e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.3.1",
+  "version": "4.3.2",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 8742bde70159559b0898d3c2c72eb4a2a1c6dd04 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 27 Sep 2019 00:09:04 +0200
Subject: [PATCH 069/191] fix test case for browsers that do not support
 __defineGetter__

---
 spec/security.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/spec/security.js b/spec/security.js
index 418541f67..c50bda6d0 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -91,6 +91,9 @@ describe('security issues', function() {
 
     describe('GH-1563', function() {
         it('should not allow to access constructor after overriding via __defineGetter__', function() {
+            if (({}).__defineGetter__ == null || ({}).__lookupGetter__ == null) {
+                return; // Browser does not support this exploit anyway
+            }
             shouldCompileTo('{{__defineGetter__ "undefined" valueOf }}' +
                 '{{#with __lookupGetter__ }}' +
                 '{{__defineGetter__ "propertyIsEnumerable" (this.bind (this.bind 1)) }}' +

From 54f7e11b28d81852cfc2cdf9d75c013af989495b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 27 Sep 2019 07:46:12 +0200
Subject: [PATCH 070/191] Update release notes

---
 release-notes.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 9c21c53b0..1f8da4a70 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,13 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.3...master)
+
+## v4.3.3 - September 27th, 2019
+ - fix test case for browsers that do not support __defineGetter__ - 8742bde
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.2...v4.3.3)
 
 ## v4.3.2 - September 26th, 2019
 - Use Object.prototype.propertyIsEnumerable to check for constructors - 213c0bb, #1563

From e4738491b3e8db97aa9b4f9967f04093ceba1a1f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 27 Sep 2019 07:46:55 +0200
Subject: [PATCH 071/191] v4.3.3

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 3a6ce5344..77ea1a51e 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.2",
+  "version": "4.3.3",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 346e1174c..0da828312 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.3.2</version>
+		<version>4.3.3</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 1842c2796..3b544d7a5 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.2",
+  "version": "4.3.3",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 205978f49..c047af8de 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.3.2';
+export const VERSION = '4.3.3';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 1ae2c833e..5c115c307 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.3.2",
+  "version": "4.3.3",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From ff4d827c0974003fedadaef1073d7d873954514c Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 28 Sep 2019 10:36:49 +0200
Subject: [PATCH 072/191] fix: harden "propertyIsEnumerable"-check

- "container" is an internal object that is most likely
  not accessible through templateing (unlike the proto of "Object", which might be.)
  In order to prevent overriding this method, we
  use "propertyIsEnumerable" from the constructor.
---
 lib/handlebars/compiler/javascript-compiler.js | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 3491aad8e..dec107e8b 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -13,15 +13,13 @@ JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
   nameLookup: function(parent, name/* , type*/) {
+    const isEnumerable = [ this.aliasable('container.propertyIsEnumerable'), '.call(', parent, ',"constructor")'];
+
     if (name === 'constructor') {
-      return ['(', _isEnumerable(), '?', _actualLookup(), ' : undefined)'];
+      return ['(', isEnumerable, '?', _actualLookup(), ' : undefined)'];
     }
     return _actualLookup();
 
-    function _isEnumerable() {
-      return `Object.prototype.propertyIsEnumerable.call(${parent},'constructor')`;
-    }
-
     function _actualLookup() {
       if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
         return [parent, '.', name];
@@ -222,7 +220,6 @@ JavaScriptCompiler.prototype = {
     let aliasCount = 0;
     for (let alias in this.aliases) { // eslint-disable-line guard-for-in
       let node = this.aliases[alias];
-
       if (this.aliases.hasOwnProperty(alias) && node.children && node.referenceCount > 1) {
         varDeclarations += ', alias' + (++aliasCount) + '=' + alias;
         node.children[0] = 'alias' + aliasCount;

From b250b2d53af0c5e984eaaa912e5a6b93477d32dc Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 28 Sep 2019 13:24:18 +0200
Subject: [PATCH 073/191] Update release notes

---
 release-notes.md | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 1f8da4a70..dec4f9861 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,15 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.3...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.4...master)
+
+## v4.3.4 - September 28th, 2019
+- fix: harden "propertyIsEnumerable"-check - ff4d827
+
+Compatibility notes:
+- No incompatibilities are known.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.3...v4.3.4)
 
 ## v4.3.3 - September 27th, 2019
  - fix test case for browsers that do not support __defineGetter__ - 8742bde

From c958cc89550ca411a78fefa426b0acee80c702eb Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 28 Sep 2019 13:25:05 +0200
Subject: [PATCH 074/191] v4.3.4

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 77ea1a51e..9f8f5ec0f 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 0da828312..eb693b3cf 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.3.3</version>
+		<version>4.3.4</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 3b544d7a5..11d5e3b70 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index c047af8de..312090345 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.3.3';
+export const VERSION = '4.3.4';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 5c115c307..788600ce8 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.3.3",
+  "version": "4.3.4",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From cf7545ef5a5da07e4583c4c41a0191868e31c5ae Mon Sep 17 00:00:00 2001
From: antelle <dmitryvit@gmail.com>
Date: Sun, 29 Sep 2019 14:57:47 +0200
Subject: [PATCH 075/191] Added support for iterable objects in {{#each}}
 helper (#1557)

* Added support for iterable object in {{#each}} helper
Currently {{#each}} helper supports either arrays, or objects,
however nowadays you can define custom iterable objects by overriding
a special method called Symbol.iterator, which results in empty result
being rendered.
* improved a test for iterables in {{#each}} returning empty result
* #each helper: using ES5 instead of generator functions in tests
* #each helper: using ES5 in the helper itself
---
 lib/handlebars/helpers/each.js | 10 ++++++++++
 spec/builtins.js               | 31 +++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/lib/handlebars/helpers/each.js b/lib/handlebars/helpers/each.js
index fb11903c8..ce549b5c7 100644
--- a/lib/handlebars/helpers/each.js
+++ b/lib/handlebars/helpers/each.js
@@ -49,6 +49,16 @@ export default function(instance) {
             execIteration(i, i, i === context.length - 1);
           }
         }
+      } else if (global.Symbol && context[global.Symbol.iterator]) {
+        const newContext = [];
+        const iterator = context[global.Symbol.iterator]();
+        for (let it = iterator.next(); !it.done; it = iterator.next()) {
+          newContext.push(it.value);
+        }
+        context = newContext;
+        for (let j = context.length; i < j; i++) {
+          execIteration(i, i, i === context.length - 1);
+        }
       } else {
         let priorKey;
 
diff --git a/spec/builtins.js b/spec/builtins.js
index ce6d8f4e8..b29927f06 100644
--- a/spec/builtins.js
+++ b/spec/builtins.js
@@ -254,6 +254,37 @@ describe('builtin helpers', function() {
         template({});
       }, handlebarsEnv.Exception, 'Must pass iterator to #each');
     });
+
+    if (global.Symbol && global.Symbol.iterator) {
+      it('each on iterable', function() {
+        function Iterator(arr) {
+          this.arr = arr;
+          this.index = 0;
+        }
+        Iterator.prototype.next = function() {
+          var value = this.arr[this.index];
+          var done = this.index === this.arr.length;
+          if (!done) {
+            this.index++;
+          }
+          return { value: value, done: done };
+        };
+        function Iterable(arr) {
+          this.arr = arr;
+        }
+        Iterable.prototype[global.Symbol.iterator] = function() {
+          return new Iterator(this.arr);
+        };
+        var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
+        var goodbyes = new Iterable([{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}]);
+        var goodbyesEmpty = new Iterable([]);
+        var hash = {goodbyes: goodbyes, world: 'world'};
+        shouldCompileTo(string, hash, 'goodbye! Goodbye! GOODBYE! cruel world!',
+          'each with array argument iterates over the contents when not empty');
+        shouldCompileTo(string, {goodbyes: goodbyesEmpty, world: 'world'}, 'cruel world!',
+          'each with array argument ignores the contents when empty');
+      });
+    }
   });
 
   describe('#log', function() {

From 8f6047cdfd045e8f65874b7178c36401c1d0f75f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 29 Sep 2019 15:28:36 +0200
Subject: [PATCH 076/191] Update release notes

---
 release-notes.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index dec4f9861..c8d7c6d50 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,13 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.4...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.0...master)
+
+## v4.4.0 - September 29th, 2019
+- Added support for iterable objects in {{#each}} helper (#1557) - cf7545e
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.3.4...v4.4.0)
 
 ## v4.3.4 - September 28th, 2019
 - fix: harden "propertyIsEnumerable"-check - ff4d827

From 059b33057925ebda96536421cfc7c4c75e5c61e3 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 29 Sep 2019 15:29:13 +0200
Subject: [PATCH 077/191] v4.4.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 9f8f5ec0f..5d706f568 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.4",
+  "version": "4.4.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index eb693b3cf..349fe4e89 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.3.4</version>
+		<version>4.4.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 11d5e3b70..326734da9 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.3.4",
+  "version": "4.4.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 312090345..cf0df5220 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.3.4';
+export const VERSION = '4.4.0';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 788600ce8..78e414b21 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.3.4",
+  "version": "4.4.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From c53f3403746f6a53fad919b27d0ebc9df995e6ee Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 21:46:16 +0200
Subject: [PATCH 078/191] chore: use @knappi/grunt-saucelabs instead of
 github-dependency

- mostly because installing dependencies from github takes really
  long in this case.
---
 package-lock.json | 140 +++++++++++++++++++++++-----------------------
 package.json      |   2 +-
 2 files changed, 72 insertions(+), 70 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 1e8462001..d99846f4a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,79 @@
 {
   "name": "handlebars",
-  "version": "4.1.2-0",
+  "version": "4.4.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@knappi/grunt-saucelabs": {
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.1.tgz",
+      "integrity": "sha512-KmFjxwr5LuhS9ifFTMhcpXMpZ+2oNL5OZ5LlY6cXz4s3Mji8VSHGFucbpT/WjIGMt5YjEuqI69XfRK9bK42aRA==",
+      "dev": true,
+      "requires": {
+        "@knappi/sauce-tunnel": "^2.5.0",
+        "colors": "~1.1.2",
+        "lodash": "^4.17.11",
+        "q": "~1.4.1",
+        "requestretry": "~1.9.0",
+        "saucelabs": "^1.5.0"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        },
+        "q": {
+          "version": "1.4.1",
+          "resolved": "https://registry.npmjs.org/q/-/q-1.4.1.tgz",
+          "integrity": "sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=",
+          "dev": true
+        }
+      }
+    },
+    "@knappi/sauce-tunnel": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/@knappi/sauce-tunnel/-/sauce-tunnel-2.5.0.tgz",
+      "integrity": "sha512-8f60HrHH4SRHOspcVLbN0gpDiBYLQjmZCXwmqibhzJDHGaD/fflPpdUD2kJJyeioydcf1T0xfpbMcJW0dLjpnw==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.2",
+        "request": "^2.88.0",
+        "split": "^1.0.1"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          }
+        },
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
     "@types/parsimmon": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/@types/parsimmon/-/parsimmon-1.10.0.tgz",
@@ -3703,33 +3773,6 @@
         }
       }
     },
-    "grunt-saucelabs": {
-      "version": "github:nknapp/grunt-saucelabs#5b9b7150e66051dbf68e9212fbb89561e447e855",
-      "from": "github:nknapp/grunt-saucelabs",
-      "dev": true,
-      "requires": {
-        "colors": "~1.1.2",
-        "lodash": "^4.17.11",
-        "q": "~1.4.1",
-        "requestretry": "~1.9.0",
-        "sauce-tunnel": "github:nknapp/sauce-tunnel",
-        "saucelabs": "^1.5.0"
-      },
-      "dependencies": {
-        "lodash": {
-          "version": "4.17.15",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
-          "dev": true
-        },
-        "q": {
-          "version": "1.4.1",
-          "resolved": "https://registry.npmjs.org/q/-/q-1.4.1.tgz",
-          "integrity": "sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=",
-          "dev": true
-        }
-      }
-    },
     "grunt-webpack": {
       "version": "1.0.18",
       "resolved": "https://registry.npmjs.org/grunt-webpack/-/grunt-webpack-1.0.18.tgz",
@@ -7020,47 +7063,6 @@
       "integrity": "sha1-RPoWGwGHuVSd2Eu5GAL5vYOFzWo=",
       "dev": true
     },
-    "sauce-tunnel": {
-      "version": "github:nknapp/sauce-tunnel#746744c71b9bec69ca612e751e7121f61a37d489",
-      "from": "github:nknapp/sauce-tunnel",
-      "dev": true,
-      "requires": {
-        "chalk": "^2.4.2",
-        "request": "^2.88.0",
-        "split": "^1.0.1"
-      },
-      "dependencies": {
-        "ansi-styles": {
-          "version": "3.2.1",
-          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
-          "dev": true,
-          "requires": {
-            "color-convert": "^1.9.0"
-          }
-        },
-        "chalk": {
-          "version": "2.4.2",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
-          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
-          "dev": true,
-          "requires": {
-            "ansi-styles": "^3.2.1",
-            "escape-string-regexp": "^1.0.5",
-            "supports-color": "^5.3.0"
-          }
-        },
-        "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
-        }
-      }
-    },
     "saucelabs": {
       "version": "1.5.0",
       "resolved": "https://registry.npmjs.org/saucelabs/-/saucelabs-1.5.0.tgz",
diff --git a/package.json b/package.json
index 78e414b21..357c4d5c3 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,7 @@
     "uglify-js": "^3.1.4"
   },
   "devDependencies": {
+    "@knappi/grunt-saucelabs": "^9.0.1",
     "aws-sdk": "^2.1.49",
     "babel-loader": "^5.0.0",
     "babel-runtime": "^5.1.10",
@@ -48,7 +49,6 @@
     "grunt-contrib-uglify": "^1",
     "grunt-contrib-watch": "^1.1.0",
     "grunt-eslint": "^20.1.0",
-    "grunt-saucelabs": "github:nknapp/grunt-saucelabs",
     "grunt-webpack": "^1.0.8",
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",

From 9cb31653a464be9cdc759ee2bdc51e745155690d Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 21:51:56 +0200
Subject: [PATCH 079/191] Update release notes

---
 release-notes.md | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index c8d7c6d50..8c358c4ae 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,14 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.1...master)
+
+## v4.4.1 - October 2nd, 2019
+- [#1562](https://github.com/wycats/handlebars.js/issues/1562) - Error message for syntax error missing location in 4.2.1+
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.0...v4.4.1)
 
 ## v4.4.0 - September 29th, 2019
 - Added support for iterable objects in {{#each}} helper (#1557) - cf7545e

From b8e769fcb624664a6bc7114c8739c2438d46dbe9 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 21:52:34 +0200
Subject: [PATCH 080/191] v4.4.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 5d706f568..d26ccee89 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.0",
+  "version": "4.4.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 349fe4e89..35e535824 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.0</version>
+		<version>4.4.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 326734da9..0c8b73edd 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.0",
+  "version": "4.4.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index cf0df5220..16d9331e5 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.0';
+export const VERSION = '4.4.1';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 357c4d5c3..01fd8a954 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.0",
+  "version": "4.4.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From b7eada01496da2c507143a83fc7f189d2d70b232 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 22:42:52 +0200
Subject: [PATCH 081/191] chore: fix grunt-saucelabs dependency

---
 Gruntfile.js      | 2 +-
 package-lock.json | 8 ++++----
 package.json      | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 7e028a052..430a0c60a 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -239,7 +239,7 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-babel');
   grunt.loadNpmTasks('grunt-bg-shell');
   grunt.loadNpmTasks('grunt-eslint');
-  grunt.loadNpmTasks('grunt-saucelabs');
+  grunt.loadNpmTasks('@knappi/grunt-saucelabs');
   grunt.loadNpmTasks('grunt-webpack');
 
   grunt.task.loadTasks('tasks');
diff --git a/package-lock.json b/package-lock.json
index d99846f4a..c884c05ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,13 @@
 {
   "name": "handlebars",
-  "version": "4.4.0",
+  "version": "4.4.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
     "@knappi/grunt-saucelabs": {
-      "version": "9.0.1",
-      "resolved": "https://registry.npmjs.org/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.1.tgz",
-      "integrity": "sha512-KmFjxwr5LuhS9ifFTMhcpXMpZ+2oNL5OZ5LlY6cXz4s3Mji8VSHGFucbpT/WjIGMt5YjEuqI69XfRK9bK42aRA==",
+      "version": "9.0.2",
+      "resolved": "https://registry.npmjs.org/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.2.tgz",
+      "integrity": "sha512-PHnusXA+begWFgZS084ZAC8kT7FNRvvJIWg5FOqusRjr4LSe++RIk2HRULAQ8Dx+6HiKJiQXzrAsDagKh3k1pw==",
       "dev": true,
       "requires": {
         "@knappi/sauce-tunnel": "^2.5.0",
diff --git a/package.json b/package.json
index 01fd8a954..47598f27f 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "uglify-js": "^3.1.4"
   },
   "devDependencies": {
-    "@knappi/grunt-saucelabs": "^9.0.1",
+    "@knappi/grunt-saucelabs": "^9.0.2",
     "aws-sdk": "^2.1.49",
     "babel-loader": "^5.0.0",
     "babel-runtime": "^5.1.10",

From 26d0f7a80d92c4b6d98197188accf52c7b07152c Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 22:44:03 +0200
Subject: [PATCH 082/191] Update release notes

---
 release-notes.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 8c358c4ae..713990a49 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,13 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.2...master)
+
+## v4.4.2 - October 2nd, 2019
+- chore: fix grunt-saucelabs dependency - b7eada0
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.1...v4.4.2)
 
 ## v4.4.1 - October 2nd, 2019
 - [#1562](https://github.com/wycats/handlebars.js/issues/1562) - Error message for syntax error missing location in 4.2.1+

From b793350fec0bb652c0bb2658089d7002af27a76b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 2 Oct 2019 22:44:36 +0200
Subject: [PATCH 083/191] v4.4.2

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index d26ccee89..cdc450704 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 35e535824..41400dbd8 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.1</version>
+		<version>4.4.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 0c8b73edd..23058be48 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 16d9331e5..14575756c 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.1';
+export const VERSION = '4.4.2';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 47598f27f..9d54050cb 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.1",
+  "version": "4.4.2",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 0440af214738a611b51c15abdd84254aca200a85 Mon Sep 17 00:00:00 2001
From: Alexander Schramm <alexander.schramm96@gmail.com>
Date: Mon, 7 Oct 2019 23:09:08 +0200
Subject: [PATCH 084/191] added missing type fields in typings and tests for
 them

---
 types/index.d.ts | 21 ++++++++++--
 types/test.ts    | 84 +++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 102 insertions(+), 3 deletions(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index a1b1693e9..6fdaf0f9c 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -270,6 +270,7 @@ declare namespace hbs {
       interface Statement extends Node {}
 
       interface MustacheStatement extends Statement {
+          type: 'MustacheStatement';
           path: PathExpression | Literal;
           params: Expression[];
           hash: Hash;
@@ -280,6 +281,7 @@ declare namespace hbs {
       interface Decorator extends MustacheStatement { }
 
       interface BlockStatement extends Statement {
+          type: 'BlockStatement';
           path: PathExpression;
           params: Expression[];
           hash: Hash;
@@ -293,6 +295,7 @@ declare namespace hbs {
       interface DecoratorBlock extends BlockStatement { }
 
       interface PartialStatement extends Statement {
+          type: 'PartialStatement';
           name: PathExpression | SubExpression;
           params: Expression[];
           hash: Hash;
@@ -301,6 +304,7 @@ declare namespace hbs {
       }
 
       interface PartialBlockStatement extends Statement {
+          type: 'PartialBlockStatement';
           name: PathExpression | SubExpression;
           params: Expression[];
           hash: Hash;
@@ -310,11 +314,13 @@ declare namespace hbs {
       }
 
       interface ContentStatement extends Statement {
+          type: 'ContentStatement';
           value: string;
           original: StripFlags;
       }
 
       interface CommentStatement extends Statement {
+          type: 'CommentStatement';
           value: string;
           strip: StripFlags;
       }
@@ -322,12 +328,14 @@ declare namespace hbs {
       interface Expression extends Node {}
 
       interface SubExpression extends Expression {
+          type: 'SubExpression';
           path: PathExpression;
           params: Expression[];
           hash: Hash;
       }
 
       interface PathExpression extends Expression {
+          type: 'PathExpression';
           data: boolean;
           depth: number;
           parts: string[];
@@ -336,29 +344,38 @@ declare namespace hbs {
 
       interface Literal extends Expression {}
       interface StringLiteral extends Literal {
+          type: 'StringLiteral';
           value: string;
           original: string;
       }
 
       interface BooleanLiteral extends Literal {
+          type: 'BooleanLiteral';
           value: boolean;
           original: boolean;
       }
 
       interface NumberLiteral extends Literal {
+          type: 'NumberLiteral';
           value: number;
           original: number;
       }
 
-      interface UndefinedLiteral extends Literal {}
+      interface UndefinedLiteral extends Literal {
+          type: 'UndefinedLiteral';
+	  }
 
-      interface NullLiteral extends Literal {}
+      interface NullLiteral extends Literal {
+          type: 'NullLiteral';
+	  }
 
       interface Hash extends Node {
+          type: 'Hash';
           pairs: HashPair[];
       }
 
       interface HashPair extends Node {
+          type: 'HashPair';
           key: string;
           value: Expression;
       }
diff --git a/types/test.ts b/types/test.ts
index 72d6ff70a..ff435916e 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -110,4 +110,86 @@ Handlebars.compile('test', {
 
 Handlebars.compile('test')({},{allowCallsToHelperMissing: true});
 
-Handlebars.compile('test')({},{});
\ No newline at end of file
+Handlebars.compile('test')({},{});
+
+
+const allthings = {} as hbs.AST.MustacheStatement |
+  hbs.AST.BlockStatement |
+  hbs.AST.PartialStatement |
+  hbs.AST.PartialBlockStatement |
+  hbs.AST.ContentStatement |
+  hbs.AST.CommentStatement |
+  hbs.AST.SubExpression |
+  hbs.AST.PathExpression |
+  hbs.AST.StringLiteral |
+  hbs.AST.BooleanLiteral |
+  hbs.AST.NumberLiteral |
+  hbs.AST.UndefinedLiteral |
+  hbs.AST.NullLiteral |
+  hbs.AST.Hash |
+  hbs.AST.HashPair;
+
+switch(allthings.type) {
+  case "MustacheStatement":
+    let mustacheStatement: hbs.AST.MustacheStatement;
+    mustacheStatement = allthings;
+    break;
+  case "BlockStatement":
+    let blockStatement: hbs.AST.BlockStatement;
+    blockStatement = allthings;
+    break;
+  case "PartialStatement":
+    let partialStatement: hbs.AST.PartialStatement;
+    partialStatement = allthings;
+    break;
+  case "PartialBlockStatement":
+    let partialBlockStatement: hbs.AST.PartialBlockStatement;
+    partialBlockStatement = allthings;
+    break;
+  case "ContentStatement":
+    let ContentStatement: hbs.AST.ContentStatement;
+    ContentStatement = allthings;
+    break;
+  case "CommentStatement":
+    let CommentStatement: hbs.AST.CommentStatement;
+    CommentStatement = allthings;
+    break;
+  case "SubExpression":
+    let SubExpression: hbs.AST.SubExpression;
+    SubExpression = allthings;
+    break;
+  case "PathExpression":
+    let PathExpression: hbs.AST.PathExpression;
+    PathExpression = allthings;
+    break;
+  case "StringLiteral":
+    let StringLiteral: hbs.AST.StringLiteral;
+    StringLiteral = allthings;
+    break;
+  case "BooleanLiteral":
+    let BooleanLiteral: hbs.AST.BooleanLiteral;
+    BooleanLiteral = allthings;
+    break;
+  case "NumberLiteral":
+    let NumberLiteral: hbs.AST.NumberLiteral;
+    NumberLiteral = allthings;
+    break;
+  case "UndefinedLiteral":
+    let UndefinedLiteral: hbs.AST.UndefinedLiteral;
+    UndefinedLiteral = allthings;
+    break;
+  case "NullLiteral":
+    let NullLiteral: hbs.AST.NullLiteral;
+    NullLiteral = allthings;
+    break;
+  case "Hash":
+    let Hash: hbs.AST.Hash;
+    Hash = allthings;
+    break;
+  case "HashPair":
+    let HashPair: hbs.AST.HashPair;
+    HashPair = allthings;
+    break;
+  default:
+    break;
+}
\ No newline at end of file

From ba570c42cf505073dfd59b95614e000962b77a89 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 8 Oct 2019 22:04:57 +0200
Subject: [PATCH 085/191] Update release notes

---
 release-notes.md | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 713990a49..c20a86cbc 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,17 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.3...master)
+
+## v4.4.3 - October 8th, 2019
+Bugfixes
+
+Typings:
+- add missing type fields to AST typings and add tests for them - 0440af2
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.2...v4.4.3)
 
 ## v4.4.2 - October 2nd, 2019
 - chore: fix grunt-saucelabs dependency - b7eada0

From 2e53fba68f8c51f9aca97615944fdbdeba94ff62 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 8 Oct 2019 22:05:35 +0200
Subject: [PATCH 086/191] v4.4.3

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index cdc450704..ea6ba5fb8 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.2",
+  "version": "4.4.3",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 41400dbd8..1c69e0abb 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.2</version>
+		<version>4.4.3</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 23058be48..0b116e797 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.2",
+  "version": "4.4.3",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 14575756c..7d649de09 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.2';
+export const VERSION = '4.4.3';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 9d54050cb..54daa5c9a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.2",
+  "version": "4.4.3",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 0b593bfe5d123d7a29d1ad40093162027460f0db Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 8 Oct 2019 22:19:01 +0200
Subject: [PATCH 087/191] chore: link to s3 bucket with https, add "npm ci" to
 build instructions

---
 CONTRIBUTING.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index a73a6b34b..5dc1c9fb5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -90,6 +90,7 @@ Handlebars utilizes the [release yeoman generator][generator-release] to perform
 A full release may be completed with the following:
 
 ```
+npm ci
 yo release
 npm publish
 yo release:publish components handlebars.js dist/components/
@@ -104,7 +105,7 @@ in those places still point to the latest version
 
 * [The npm-package](https://www.npmjs.com/package/handlebars) (check latest-tag)
 * [The bower package](https://github.com/components/handlebars.js) (check the package.json)
-* [The AWS S3 Bucket](http://builds.handlebarsjs.com.s3.amazonaws.com/) (check latest-tag)
+* [The AWS S3 Bucket](https://s3.amazonaws.com/builds.handlebarsjs.com) (check latest-tag)
 * [RubyGems](https://rubygems.org/gems/handlebars-source)
 
 When everything is OK, the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.

From feb60f85c90826369672cf93bf97343f0e246717 Mon Sep 17 00:00:00 2001
From: sohibe <sohibe@gmail.com>
Date: Wed, 29 May 2019 03:39:03 +0300
Subject: [PATCH 088/191] show source location for the strict lookup exceptions

---
 .../compiler/javascript-compiler.js           |  3 ++-
 lib/handlebars/exception.js                   | 15 +++++++++++++--
 lib/handlebars/runtime.js                     |  6 +++---
 spec/strict.js                                | 19 +++++++++++++++++++
 4 files changed, 37 insertions(+), 6 deletions(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index dec107e8b..cc26eb240 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -1091,6 +1091,7 @@ JavaScriptCompiler.prototype = {
 
   setupHelperArgs: function(helper, paramSize, params, useRegister) {
     let options = this.setupParams(helper, paramSize, params);
+    options.loc = JSON.stringify(this.source.currentLocation);
     options = this.objectLiteral(options);
     if (useRegister) {
       this.useRegister('options');
@@ -1150,7 +1151,7 @@ function strictLookup(requireTerminal, compiler, parts, type) {
   }
 
   if (requireTerminal) {
-    return [compiler.aliasable('container.strict'), '(', stack, ', ', compiler.quotedString(parts[i]), ')'];
+    return [compiler.aliasable('container.strict'), '(', stack, ', ', compiler.quotedString(parts[i]), ', ', JSON.stringify(compiler.source.currentLocation), ' )'];
   } else {
     return stack;
   }
diff --git a/lib/handlebars/exception.js b/lib/handlebars/exception.js
index b9a5557b6..6333f1907 100644
--- a/lib/handlebars/exception.js
+++ b/lib/handlebars/exception.js
@@ -1,13 +1,18 @@
 
-const errorProps = ['description', 'fileName', 'lineNumber', 'message', 'name', 'number', 'stack'];
+const errorProps = ['description', 'fileName', 'lineNumber', 'endLineNumber', 'message', 'name', 'number', 'stack'];
 
 function Exception(message, node) {
   let loc = node && node.loc,
       line,
-      column;
+      endLineNumber,
+      column,
+      endColumn;
+
   if (loc) {
     line = loc.start.line;
+    endLineNumber = loc.end.line;
     column = loc.start.column;
+    endColumn = loc.end.column;
 
     message += ' - ' + line + ':' + column;
   }
@@ -27,6 +32,7 @@ function Exception(message, node) {
   try {
     if (loc) {
       this.lineNumber = line;
+      this.endLineNumber = endLineNumber;
 
       // Work around issue under safari where we can't directly set the column value
       /* istanbul ignore next */
@@ -35,8 +41,13 @@ function Exception(message, node) {
           value: column,
           enumerable: true
         });
+        Object.defineProperty(this, 'endColumn', {
+          value: endColumn,
+          enumerable: true
+        });
       } else {
         this.column = column;
+        this.endColumn = endColumn;
       }
     }
   } catch (nop) {
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 763016de7..958afc3ef 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -79,9 +79,9 @@ export function template(templateSpec, env) {
 
   // Just add water
   let container = {
-    strict: function(obj, name) {
-      if (!(name in obj)) {
-        throw new Exception('"' + name + '" not defined in ' + obj);
+    strict: function(obj, name, loc) {
+      if (!obj || !(name in obj)) {
+        throw new Exception('"' + name + '" not defined in ' + obj, { loc: loc });
       }
       return obj[name];
     },
diff --git a/spec/strict.js b/spec/strict.js
index 05ce35d9e..3bd7cc18e 100644
--- a/spec/strict.js
+++ b/spec/strict.js
@@ -95,6 +95,25 @@ describe('strict', function() {
       };
       equals(template({}, {helpers: helpers}), 'success');
     });
+
+    it('should show error location on missing property lookup', function() {
+      shouldThrow(function() {
+        var template = CompilerContext.compile('\n\n\n   {{hello}}', {strict: true});
+        template({});
+      }, Exception, '"hello" not defined in [object Object] - 4:5');
+    });
+
+    it('should error contains correct location properties on missing property lookup', function() {
+      try {
+        var template = CompilerContext.compile('\n\n\n   {{hello}}', {strict: true});
+        template({});
+      } catch (error) {
+        equals(error.lineNumber, 4);
+        equals(error.endLineNumber, 4);
+        equals(error.column, 5);
+        equals(error.endColumn, 10);
+      }
+    });
   });
 
   describe('assume objects', function() {

From aaab6099f298bf196855238e89c8e9e52ff2b14e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Sun, 20 Oct 2019 21:23:02 +0200
Subject: [PATCH 089/191] fix: prevent zero length tokens in raw-blocks (#1577)

This comment ensures that the lexer is not stuck on zero-length tokens, in raw-blocks like {{{{a}}}} {{{{/a}}}}
---
 spec/helpers.js   | 35 ++++++++++++++++++++++++++++-------
 src/handlebars.l  |  2 +-
 src/handlebars.yy |  2 +-
 3 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/spec/helpers.js b/spec/helpers.js
index 15bc2f121..0e756aba3 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -28,14 +28,35 @@ describe('helpers', function() {
                     'raw block helper gets raw content');
   });
 
-  it('helper for nested raw block gets raw content', function() {
-    var string = '{{{{a}}}} {{{{b}}}} {{{{/b}}}} {{{{/a}}}}';
-    var helpers = {
-        a: function(options) {
+  describe('raw block parsing (with identity helper-function)', function() {
+
+    function runWithIdentityHelper(template, expected) {
+      var helpers = {
+        identity: function(options) {
           return options.fn();
-      }
-    };
-    shouldCompileTo(string, [{}, helpers], ' {{{{b}}}} {{{{/b}}}} ', 'raw block helper should get nested raw block as raw content');
+        }
+      };
+      shouldCompileTo(template, [{}, helpers], expected);
+    }
+
+    it('helper for nested raw block gets raw content', function() {
+      runWithIdentityHelper('{{{{identity}}}} {{{{b}}}} {{{{/b}}}} {{{{/identity}}}}', ' {{{{b}}}} {{{{/b}}}} ');
+    });
+
+    it('helper for nested raw block works with empty content', function() {
+      runWithIdentityHelper('{{{{identity}}}}{{{{/identity}}}}', '');
+    });
+
+    it('helper for nested raw block works if nested raw blocks are broken', function() {
+      runWithIdentityHelper('{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}', ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} ');
+    });
+
+    it('helper for nested raw block throw exception when with missing closing braces', function() {
+      var string = '{{{{a}}}} {{{{/a';
+      shouldThrow(function() {
+        Handlebars.compile(string)();
+      });
+    });
   });
 
   it('helper block with identical context', function() {
diff --git a/src/handlebars.l b/src/handlebars.l
index 90acffec0..2b27a9fab 100644
--- a/src/handlebars.l
+++ b/src/handlebars.l
@@ -63,7 +63,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                     return 'END_RAW_BLOCK';
                                   }
                                  }
-<raw>[^\x00]*?/("{{{{")          { return 'CONTENT'; }
+<raw>[^\x00]+/("{{{{")          { return 'CONTENT'; }
 
 <com>[\s\S]*?"--"{RIGHT_STRIP}?"}}" {
   this.popState();
diff --git a/src/handlebars.yy b/src/handlebars.yy
index ce0649838..cab04c61a 100644
--- a/src/handlebars.yy
+++ b/src/handlebars.yy
@@ -39,7 +39,7 @@ content
   };
 
 rawBlock
-  : openRawBlock content+ END_RAW_BLOCK -> yy.prepareRawBlock($1, $2, $3, @$)
+  : openRawBlock content* END_RAW_BLOCK -> yy.prepareRawBlock($1, $2, $3, @$)
   ;
 
 openRawBlock

From f1752fe66f1c4047fbb242af4652b9c026ec6562 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Sun, 20 Oct 2019 21:23:02 +0200
Subject: [PATCH 090/191] fix: prevent zero length tokens in raw-blocks (#1577)

This comment ensures that the lexer is not stuck on zero-length tokens, in raw-blocks like {{{{a}}}} {{{{/a}}}}
---
 spec/helpers.js   | 35 ++++++++++++++++++++++++++++-------
 src/handlebars.l  |  2 +-
 src/handlebars.yy |  2 +-
 3 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/spec/helpers.js b/spec/helpers.js
index 15bc2f121..0e756aba3 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -28,14 +28,35 @@ describe('helpers', function() {
                     'raw block helper gets raw content');
   });
 
-  it('helper for nested raw block gets raw content', function() {
-    var string = '{{{{a}}}} {{{{b}}}} {{{{/b}}}} {{{{/a}}}}';
-    var helpers = {
-        a: function(options) {
+  describe('raw block parsing (with identity helper-function)', function() {
+
+    function runWithIdentityHelper(template, expected) {
+      var helpers = {
+        identity: function(options) {
           return options.fn();
-      }
-    };
-    shouldCompileTo(string, [{}, helpers], ' {{{{b}}}} {{{{/b}}}} ', 'raw block helper should get nested raw block as raw content');
+        }
+      };
+      shouldCompileTo(template, [{}, helpers], expected);
+    }
+
+    it('helper for nested raw block gets raw content', function() {
+      runWithIdentityHelper('{{{{identity}}}} {{{{b}}}} {{{{/b}}}} {{{{/identity}}}}', ' {{{{b}}}} {{{{/b}}}} ');
+    });
+
+    it('helper for nested raw block works with empty content', function() {
+      runWithIdentityHelper('{{{{identity}}}}{{{{/identity}}}}', '');
+    });
+
+    it('helper for nested raw block works if nested raw blocks are broken', function() {
+      runWithIdentityHelper('{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}', ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} ');
+    });
+
+    it('helper for nested raw block throw exception when with missing closing braces', function() {
+      var string = '{{{{a}}}} {{{{/a';
+      shouldThrow(function() {
+        Handlebars.compile(string)();
+      });
+    });
   });
 
   it('helper block with identical context', function() {
diff --git a/src/handlebars.l b/src/handlebars.l
index 90acffec0..2b27a9fab 100644
--- a/src/handlebars.l
+++ b/src/handlebars.l
@@ -63,7 +63,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                     return 'END_RAW_BLOCK';
                                   }
                                  }
-<raw>[^\x00]*?/("{{{{")          { return 'CONTENT'; }
+<raw>[^\x00]+/("{{{{")          { return 'CONTENT'; }
 
 <com>[\s\S]*?"--"{RIGHT_STRIP}?"}}" {
   this.popState();
diff --git a/src/handlebars.yy b/src/handlebars.yy
index ce0649838..cab04c61a 100644
--- a/src/handlebars.yy
+++ b/src/handlebars.yy
@@ -39,7 +39,7 @@ content
   };
 
 rawBlock
-  : openRawBlock content+ END_RAW_BLOCK -> yy.prepareRawBlock($1, $2, $3, @$)
+  : openRawBlock content* END_RAW_BLOCK -> yy.prepareRawBlock($1, $2, $3, @$)
   ;
 
 openRawBlock

From 143ac806dadd3314ef4390234fb66232413ac3ae Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 21:32:09 +0200
Subject: [PATCH 091/191] Update release notes

---
 release-notes.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index c20a86cbc..eb60913a5 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,19 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.3...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...master)
+
+## v4.4.4 - October 20th, 2019
+Bugfixes:
+- fix: prevent zero length tokens in raw-blocks (#1577, #1578) - f1752fe
+
+Chore: 
+- chore: link to s3 bucket with https, add "npm ci" to build instructions - 0b593bf
+
+Compatibility notes:
+- no compatibility issues are expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.3...v4.4.4)
 
 ## v4.4.3 - October 8th, 2019
 Bugfixes

From 2ab261eab7835e9c80ad1cb7ef9fc9b0f46d6a57 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 21:33:00 +0200
Subject: [PATCH 092/191] v4.4.4

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index ea6ba5fb8..fc7a33709 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.3",
+  "version": "4.4.4",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 1c69e0abb..653078c14 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.3</version>
+		<version>4.4.4</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 0b116e797..e8e6f1cba 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.3",
+  "version": "4.4.4",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 7d649de09..2b7709200 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.3';
+export const VERSION = '4.4.4';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 54daa5c9a..de7e3da01 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.3",
+  "version": "4.4.4",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 8d5530ee2c3ea9f0aee3fde310b9f36887d00b8b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 22:53:56 +0200
Subject: [PATCH 093/191] fix: non-eager matching raw-block-contents

In 4.4.4 the block-contents was matched with an eager match, which means
that with multiple raw-blocks of the same kind, the block was spanned
over the first ending-tag until the last one.
This commit replaces this by a non-eager match.

closes #1579
---
 spec/helpers.js   | 10 +++++++++-
 spec/tokenizer.js |  5 +++++
 src/handlebars.l  |  2 +-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/spec/helpers.js b/spec/helpers.js
index 0e756aba3..f95817c6a 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -47,10 +47,18 @@ describe('helpers', function() {
       runWithIdentityHelper('{{{{identity}}}}{{{{/identity}}}}', '');
     });
 
-    it('helper for nested raw block works if nested raw blocks are broken', function() {
+    xit('helper for nested raw block works if nested raw blocks are broken', function() {
+      // This test was introduced in 4.4.4, but it was not the actual problem that lead to the patch release
+      // The test is deactivated, because in 3.x this template cases an exception and it also does not work in 4.4.3
+      // If anyone can make this template work without breaking everything else, then go for it,
+      // but for now, this is just a known bug, that will be documented.
       runWithIdentityHelper('{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}', ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} ');
     });
 
+    it('helper for nested raw block closes after first matching close', function() {
+      runWithIdentityHelper('{{{{identity}}}}abc{{{{/identity}}}} {{{{identity}}}}abc{{{{/identity}}}}', 'abc abc');
+    });
+
     it('helper for nested raw block throw exception when with missing closing braces', function() {
       var string = '{{{{a}}}} {{{{/a';
       shouldThrow(function() {
diff --git a/spec/tokenizer.js b/spec/tokenizer.js
index 1a361b754..ec15d597f 100644
--- a/spec/tokenizer.js
+++ b/spec/tokenizer.js
@@ -441,4 +441,9 @@ describe('Tokenizer', function() {
     result = tokenize('{{else foo as |bar baz|}}');
     shouldMatchTokens(result, ['OPEN_INVERSE_CHAIN', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
   });
+
+  it('tokenizes raw blocks', function() {
+    var result = tokenize('{{{{a}}}} abc {{{{/a}}}} aaa {{{{a}}}} abc {{{{/a}}}}');
+    shouldMatchTokens(result, ['OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK', 'CONTENT', 'OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK']);
+  });
 });
diff --git a/src/handlebars.l b/src/handlebars.l
index 2b27a9fab..fbf208b48 100644
--- a/src/handlebars.l
+++ b/src/handlebars.l
@@ -63,7 +63,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                     return 'END_RAW_BLOCK';
                                   }
                                  }
-<raw>[^\x00]+/("{{{{")          { return 'CONTENT'; }
+<raw>[^\x00]+?/("{{{{")          { return 'CONTENT'; }
 
 <com>[\s\S]*?"--"{RIGHT_STRIP}?"}}" {
   this.popState();

From fd2e5c983dd8c3a76fc2196557eda5a9f7c58396 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 22:53:56 +0200
Subject: [PATCH 094/191] fix: non-eager matching raw-block-contents

In 4.4.4 the block-contents was matched with an eager match, which means
that with multiple raw-blocks of the same kind, the block was spanned
over the first ending-tag until the last one.
This commit replaces this by a non-eager match.

closes #1579
---
 spec/helpers.js   | 10 +++++++++-
 spec/tokenizer.js |  5 +++++
 src/handlebars.l  |  2 +-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/spec/helpers.js b/spec/helpers.js
index 0e756aba3..f95817c6a 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -47,10 +47,18 @@ describe('helpers', function() {
       runWithIdentityHelper('{{{{identity}}}}{{{{/identity}}}}', '');
     });
 
-    it('helper for nested raw block works if nested raw blocks are broken', function() {
+    xit('helper for nested raw block works if nested raw blocks are broken', function() {
+      // This test was introduced in 4.4.4, but it was not the actual problem that lead to the patch release
+      // The test is deactivated, because in 3.x this template cases an exception and it also does not work in 4.4.3
+      // If anyone can make this template work without breaking everything else, then go for it,
+      // but for now, this is just a known bug, that will be documented.
       runWithIdentityHelper('{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}', ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} ');
     });
 
+    it('helper for nested raw block closes after first matching close', function() {
+      runWithIdentityHelper('{{{{identity}}}}abc{{{{/identity}}}} {{{{identity}}}}abc{{{{/identity}}}}', 'abc abc');
+    });
+
     it('helper for nested raw block throw exception when with missing closing braces', function() {
       var string = '{{{{a}}}} {{{{/a';
       shouldThrow(function() {
diff --git a/spec/tokenizer.js b/spec/tokenizer.js
index 1a361b754..ec15d597f 100644
--- a/spec/tokenizer.js
+++ b/spec/tokenizer.js
@@ -441,4 +441,9 @@ describe('Tokenizer', function() {
     result = tokenize('{{else foo as |bar baz|}}');
     shouldMatchTokens(result, ['OPEN_INVERSE_CHAIN', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
   });
+
+  it('tokenizes raw blocks', function() {
+    var result = tokenize('{{{{a}}}} abc {{{{/a}}}} aaa {{{{a}}}} abc {{{{/a}}}}');
+    shouldMatchTokens(result, ['OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK', 'CONTENT', 'OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK']);
+  });
 });
diff --git a/src/handlebars.l b/src/handlebars.l
index 2b27a9fab..fbf208b48 100644
--- a/src/handlebars.l
+++ b/src/handlebars.l
@@ -63,7 +63,7 @@ ID    [^\s!"#%-,\.\/;->@\[-\^`\{-~]+/{LOOKAHEAD}
                                     return 'END_RAW_BLOCK';
                                   }
                                  }
-<raw>[^\x00]+/("{{{{")          { return 'CONTENT'; }
+<raw>[^\x00]+?/("{{{{")          { return 'CONTENT'; }
 
 <com>[\s\S]*?"--"{RIGHT_STRIP}?"}}" {
   this.popState();

From def79fd5d60bc73ead4c69125dc6f24e4793a056 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 23:07:22 +0200
Subject: [PATCH 095/191] Update release notes

---
 release-notes.md | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index eb60913a5..4d5bfbf68 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,16 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.5...master)
+
+## v4.4.5 - October 20th, 2019
+Bugfixes: 
+
+- Contents of raw-blocks must be matched with non-eager regex-matching - 8d5530e, #1579
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...v4.4.5)
 
 ## v4.4.4 - October 20th, 2019
 Bugfixes:

From 8e1cce79186ab6caeb8c6ec9c1f8bcfa1a40e83d Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 20 Oct 2019 23:08:10 +0200
Subject: [PATCH 096/191] v4.4.5

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index fc7a33709..de0d3edf7 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.4",
+  "version": "4.4.5",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 653078c14..5c03a0795 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.4</version>
+		<version>4.4.5</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index e8e6f1cba..db8c6a638 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.4",
+  "version": "4.4.5",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 2b7709200..eccdb4753 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.4';
+export const VERSION = '4.4.5';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index de7e3da01..40391a611 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.4",
+  "version": "4.4.5",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From c76ded8f0f184ba0d2a74d47aec158e58d9737b9 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <github.erisds@gmail.com>
Date: Sun, 27 Oct 2019 14:41:35 +0000
Subject: [PATCH 097/191] fix: add guard to if & unless helpers (#1549)

fixes #1548

- add a guard to show readable syntax error for if / unless helper
- prevents against 3 different errors that can be generated by different systax errors
---
 lib/handlebars/helpers/if.js   |    5 +-
 lib/handlebars/helpers/with.js |    4 +-
 spec/helpers.js                |   66 +
 yarn.lock                      | 5839 ++++++++++++++++++++++++++++++++
 4 files changed, 5912 insertions(+), 2 deletions(-)
 create mode 100644 yarn.lock

diff --git a/lib/handlebars/helpers/if.js b/lib/handlebars/helpers/if.js
index 11d08df91..5be88b70a 100644
--- a/lib/handlebars/helpers/if.js
+++ b/lib/handlebars/helpers/if.js
@@ -1,7 +1,9 @@
-import {isEmpty, isFunction} from '../utils';
+import { isEmpty, isFunction } from '../utils';
+import Exception from '../exception';
 
 export default function(instance) {
   instance.registerHelper('if', function(conditional, options) {
+    if (arguments.length != 2) { throw new Exception('#if requires exactly one argument');}
     if (isFunction(conditional)) { conditional = conditional.call(this); }
 
     // Default behavior is to render the positive path if the value is truthy and not empty.
@@ -15,6 +17,7 @@ export default function(instance) {
   });
 
   instance.registerHelper('unless', function(conditional, options) {
+    if (arguments.length != 2) { throw new Exception('#unless requires exactly one argument');}
     return instance.helpers['if'].call(this, conditional, {fn: options.inverse, inverse: options.fn, hash: options.hash});
   });
 }
diff --git a/lib/handlebars/helpers/with.js b/lib/handlebars/helpers/with.js
index 7418cd066..cfeab4240 100644
--- a/lib/handlebars/helpers/with.js
+++ b/lib/handlebars/helpers/with.js
@@ -1,7 +1,9 @@
-import {appendContextPath, blockParams, createFrame, isEmpty, isFunction} from '../utils';
+import { appendContextPath, blockParams, createFrame, isEmpty, isFunction } from '../utils';
+import Exception from '../exception';
 
 export default function(instance) {
   instance.registerHelper('with', function(context, options) {
+    if (arguments.length != 2) { throw new Exception('#with requires exactly one argument');}
     if (isFunction(context)) { context = context.call(this); }
 
     let fn = options.fn;
diff --git a/spec/helpers.js b/spec/helpers.js
index f95817c6a..634d7027e 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -766,4 +766,70 @@ describe('helpers', function() {
       shouldCompileTo('{{#if bar}}{{else goodbyes as |value|}}{{value}}{{/if}}{{value}}', [hash, helpers], '1foo');
     });
   });
+
+  describe('built-in helpers malformed arguments ', function() {
+    it('if helper - too few arguments', function() {
+      var template = CompilerContext.compile('{{#if}}{{/if}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#if requires exactly one argument/);
+    });
+
+    it('if helper - too many arguments, string', function() {
+      var template = CompilerContext.compile('{{#if test "string"}}{{/if}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#if requires exactly one argument/);
+    });
+
+    it('if helper - too many arguments, undefined', function() {
+      var template = CompilerContext.compile('{{#if test undefined}}{{/if}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#if requires exactly one argument/);
+    });
+
+    it('if helper - too many arguments, null', function() {
+      var template = CompilerContext.compile('{{#if test null}}{{/if}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#if requires exactly one argument/);
+    });
+
+    it('unless helper - too few arguments', function() {
+      var template = CompilerContext.compile('{{#unless}}{{/unless}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#unless requires exactly one argument/);
+    });
+
+    it('unless helper - too many arguments', function() {
+      var template = CompilerContext.compile('{{#unless test null}}{{/unless}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#unless requires exactly one argument/);
+    });
+
+    it('with helper - too few arguments', function() {
+      var template = CompilerContext.compile('{{#with}}{{/with}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#with requires exactly one argument/);
+    });
+
+    it('with helper - too many arguments', function() {
+      var template = CompilerContext.compile('{{#with test "string"}}{{/with}}');
+        shouldThrow(function() {
+
+            template({});
+        }, undefined, /#with requires exactly one argument/);
+    });
+  });
 });
diff --git a/yarn.lock b/yarn.lock
new file mode 100644
index 000000000..bf9a353ba
--- /dev/null
+++ b/yarn.lock
@@ -0,0 +1,5839 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+"@babel/code-frame@^7.0.0":
+  version "7.5.5"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.5.5.tgz#bc0782f6d69f7b7d49531219699b988f669a8f9d"
+  integrity sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==
+  dependencies:
+    "@babel/highlight" "^7.0.0"
+
+"@babel/highlight@^7.0.0":
+  version "7.5.0"
+  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.5.0.tgz#56d11312bd9248fa619591d02472be6e8cb32540"
+  integrity sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==
+  dependencies:
+    chalk "^2.0.0"
+    esutils "^2.0.2"
+    js-tokens "^4.0.0"
+
+"@knappi/grunt-saucelabs@^9.0.2":
+  version "9.0.2"
+  resolved "https://registry.yarnpkg.com/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.2.tgz#ac3cf06bb2006e52174a9da43a73c32123fb5b95"
+  integrity sha512-PHnusXA+begWFgZS084ZAC8kT7FNRvvJIWg5FOqusRjr4LSe++RIk2HRULAQ8Dx+6HiKJiQXzrAsDagKh3k1pw==
+  dependencies:
+    "@knappi/sauce-tunnel" "^2.5.0"
+    colors "~1.1.2"
+    lodash "^4.17.11"
+    q "~1.4.1"
+    requestretry "~1.9.0"
+    saucelabs "^1.5.0"
+
+"@knappi/sauce-tunnel@^2.5.0":
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/@knappi/sauce-tunnel/-/sauce-tunnel-2.5.0.tgz#b0161a95c211e438b39a80a5ddf0d5a57a0c6ca4"
+  integrity sha512-8f60HrHH4SRHOspcVLbN0gpDiBYLQjmZCXwmqibhzJDHGaD/fflPpdUD2kJJyeioydcf1T0xfpbMcJW0dLjpnw==
+  dependencies:
+    chalk "^2.4.2"
+    request "^2.88.0"
+    split "^1.0.1"
+
+"@types/parsimmon@^1.3.0":
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/@types/parsimmon/-/parsimmon-1.10.0.tgz#ffb81cb023ff435a41d4710a29ab23c561dc9fdf"
+  integrity sha512-bsTIJFVQv7jnvNiC42ld2pQW2KRI+pAG243L+iATvqzy3X6+NH1obz2itRKDZZ8VVhN3wjwYax/VBGCcXzgTqQ==
+
+JSONSelect@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/JSONSelect/-/JSONSelect-0.4.0.tgz#a08edcc67eb3fcbe99ed630855344a0cf282bb8d"
+  integrity sha1-oI7cxn6z/L6Z7WMIVTRKDPKCu40=
+
+"JSV@>= 4.0.x":
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/JSV/-/JSV-4.0.2.tgz#d077f6825571f82132f9dffaed587b4029feff57"
+  integrity sha1-0Hf2glVx+CEy+d/67Vh7QCn+/1c=
+
+abbrev@1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
+  integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
+
+abbrev@1.0.x:
+  version "1.0.9"
+  resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.0.9.tgz#91b4792588a7738c25f35dd6f63752a2f8776135"
+  integrity sha1-kbR5JYinc4wl813W9jdSovh3YTU=
+
+accepts@~1.3.4, accepts@~1.3.5, accepts@~1.3.7:
+  version "1.3.7"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
+  integrity sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==
+  dependencies:
+    mime-types "~2.1.24"
+    negotiator "0.6.2"
+
+acorn-jsx@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-3.0.1.tgz#afdf9488fb1ecefc8348f6fb22f464e32a58b36b"
+  integrity sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=
+  dependencies:
+    acorn "^3.0.4"
+
+acorn@^3.0.0, acorn@^3.0.4:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
+  integrity sha1-ReN/s56No/JbruP/U2niu18iAXo=
+
+acorn@^5.2.1, acorn@^5.5.0:
+  version "5.7.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
+  integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
+
+agent-base@^4.3.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.3.0.tgz#8165f01c436009bccad0b1d122f05ed770efc6ee"
+  integrity sha512-salcGninV0nPrwpGNn4VTXBb1SOuXQBiqbrNXoeizJsHrsL6ERFM2Ne3JUSBWRE6aeNJI2ROP/WEEIDUiDe3cg==
+  dependencies:
+    es6-promisify "^5.0.0"
+
+ajv-keywords@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ajv-keywords/-/ajv-keywords-2.1.1.tgz#617997fc5f60576894c435f940d819e135b80762"
+  integrity sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=
+
+ajv@^5.2.3, ajv@^5.3.0:
+  version "5.5.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.2.tgz#73b5eeca3fab653e3d3f9422b341ad42205dc965"
+  integrity sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=
+  dependencies:
+    co "^4.6.0"
+    fast-deep-equal "^1.0.0"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.3.0"
+
+ajv@^6.5.5:
+  version "6.10.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.2.tgz#d3cea04d6b017b2894ad69040fec8b623eb4bd52"
+  integrity sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==
+  dependencies:
+    fast-deep-equal "^2.0.1"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.4.1"
+    uri-js "^4.2.2"
+
+align-text@^0.1.1, align-text@^0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/align-text/-/align-text-0.1.4.tgz#0cd90a561093f35d0a99256c22b7069433fad117"
+  integrity sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=
+  dependencies:
+    kind-of "^3.0.2"
+    longest "^1.0.1"
+    repeat-string "^1.5.2"
+
+alter@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/alter/-/alter-0.2.0.tgz#c7588808617572034aae62480af26b1d4d1cb3cd"
+  integrity sha1-x1iICGF1cgNKrmJICvJrHU0cs80=
+  dependencies:
+    stable "~0.1.3"
+
+amdefine@>=0.0.4:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/amdefine/-/amdefine-1.0.1.tgz#4a5282ac164729e93619bcfd3ad151f817ce91f5"
+  integrity sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=
+
+ansi-escapes@^3.0.0:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.2.0.tgz#8780b98ff9dbf5638152d1f1fe5c1d7b4442976b"
+  integrity sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ==
+
+ansi-regex@^2.0.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-2.1.1.tgz#c3b33ab5ee360d86e0e628f0468ae7ef27d654df"
+  integrity sha1-w7M6te42DYbg5ijwRorn7yfWVN8=
+
+ansi-regex@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-regex/-/ansi-regex-3.0.0.tgz#ed0317c322064f79466c02966bddb605ab37d998"
+  integrity sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=
+
+ansi-styles@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-2.2.1.tgz#b432dd3358b634cf75e1e4664368240533c1ddbe"
+  integrity sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=
+
+ansi-styles@^3.2.1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-3.2.1.tgz#41fbb20243e50b12be0f04b8dedbf07520ce841d"
+  integrity sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==
+  dependencies:
+    color-convert "^1.9.0"
+
+ansi-styles@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/ansi-styles/-/ansi-styles-1.0.0.tgz#cb102df1c56f5123eab8b67cd7b98027a0279178"
+  integrity sha1-yxAt8cVvUSPquLZ817mAJ6AnkXg=
+
+anymatch@^1.3.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/anymatch/-/anymatch-1.3.2.tgz#553dcb8f91e3c889845dfdba34c77721b90b9d7a"
+  integrity sha512-0XNayC8lTHQ2OI8aljNCN3sSx6hsr/1+rlcDAotXJR7C1oZZHCNsfpbKwMjRA3Uqb5tF1Rae2oloTr4xpq+WjA==
+  dependencies:
+    micromatch "^2.1.5"
+    normalize-path "^2.0.0"
+
+aproba@^1.0.3:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/aproba/-/aproba-1.2.0.tgz#6802e6264efd18c790a1b0d517f0f2627bf2c94a"
+  integrity sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==
+
+are-we-there-yet@~1.1.2:
+  version "1.1.5"
+  resolved "https://registry.yarnpkg.com/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz#4b35c2944f062a8bfcda66410760350fe9ddfc21"
+  integrity sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==
+  dependencies:
+    delegates "^1.0.0"
+    readable-stream "^2.0.6"
+
+argparse@^1.0.7:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
+  integrity sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
+  dependencies:
+    sprintf-js "~1.0.2"
+
+arr-diff@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-2.0.0.tgz#8f3b827f955a8bd669697e4a4256ac3ceae356cf"
+  integrity sha1-jzuCf5Vai9ZpaX5KQlasPOrjVs8=
+  dependencies:
+    arr-flatten "^1.0.1"
+
+arr-diff@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/arr-diff/-/arr-diff-4.0.0.tgz#d6461074febfec71e7e15235761a329a5dc7c520"
+  integrity sha1-1kYQdP6/7HHn4VI1dhoyml3HxSA=
+
+arr-flatten@^1.0.1, arr-flatten@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/arr-flatten/-/arr-flatten-1.1.0.tgz#36048bbff4e7b47e136644316c99669ea5ae91f1"
+  integrity sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==
+
+arr-union@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/arr-union/-/arr-union-3.1.0.tgz#e39b09aea9def866a8f206e288af63919bae39c4"
+  integrity sha1-45sJrqne+Gao8gbiiK9jkZuuOcQ=
+
+array-each@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/array-each/-/array-each-1.0.1.tgz#a794af0c05ab1752846ee753a1f211a05ba0c44f"
+  integrity sha1-p5SvDAWrF1KEbudTofIRoFugxE8=
+
+array-find-index@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
+  integrity sha1-3wEKoSh+Fku9pvlyOwqWoexBh6E=
+
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+  integrity sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=
+
+array-slice@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/array-slice/-/array-slice-1.1.0.tgz#e368ea15f89bc7069f7ffb89aec3a6c7d4ac22d4"
+  integrity sha512-B1qMD3RBP7O8o0H2KbrXDyB0IccejMF15+87Lvlor12ONPRHP6gTjXMNkt/d3ZuOGbAe66hFmaCfECI24Ufp6w==
+
+array-unique@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.2.1.tgz#a1d97ccafcbc2625cc70fadceb36a50c58b01a53"
+  integrity sha1-odl8yvy8JiXMcPrc6zalDFiwGlM=
+
+array-unique@^0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/array-unique/-/array-unique-0.3.2.tgz#a894b75d4bc4f6cd679ef3244a9fd8f46ae2d428"
+  integrity sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg=
+
+asn1@~0.2.3:
+  version "0.2.4"
+  resolved "https://registry.yarnpkg.com/asn1/-/asn1-0.2.4.tgz#8d2475dfab553bb33e77b54e59e880bb8ce23136"
+  integrity sha512-jxwzQpLQjSmWXgwaCZE9Nz+glAG01yF1QnWgbhGwHI5A6FRIEY6IVqtHhIepHqI7/kyEyQEagBC5mBEFlIYvdg==
+  dependencies:
+    safer-buffer "~2.1.0"
+
+assert-plus@1.0.0, assert-plus@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assert-plus/-/assert-plus-1.0.0.tgz#f12e0f3c5d77b0b1cdd9146942e4e96c1e4dd525"
+  integrity sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=
+
+assert@^1.1.1:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/assert/-/assert-1.5.0.tgz#55c109aaf6e0aefdb3dc4b71240c70bf574b18eb"
+  integrity sha512-EDsgawzwoun2CZkCgtxJbv392v4nbk9XDD06zI+kQYoBM/3RBWLlEyJARDOmhAAosBjWACEkKL6S+lIZtcAubA==
+  dependencies:
+    object-assign "^4.1.1"
+    util "0.10.3"
+
+assign-symbols@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/assign-symbols/-/assign-symbols-1.0.0.tgz#59667f41fadd4f20ccbc2bb96b8d4f7f78ec0367"
+  integrity sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=
+
+ast-traverse@~0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ast-traverse/-/ast-traverse-0.1.1.tgz#69cf2b8386f19dcda1bb1e05d68fe359d8897de6"
+  integrity sha1-ac8rg4bxnc2hux4F1o/jWdiJfeY=
+
+ast-types@0.8.12:
+  version "0.8.12"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.8.12.tgz#a0d90e4351bb887716c83fd637ebf818af4adfcc"
+  integrity sha1-oNkOQ1G7iHcWyD/WN+v4GK9K38w=
+
+ast-types@0.8.15:
+  version "0.8.15"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.8.15.tgz#8eef0827f04dff0ec8857ba925abe3fea6194e52"
+  integrity sha1-ju8IJ/BN/w7IhXupJavj/qYZTlI=
+
+ast-types@0.9.6:
+  version "0.9.6"
+  resolved "https://registry.yarnpkg.com/ast-types/-/ast-types-0.9.6.tgz#102c9e9e9005d3e7e3829bf0c4fa24ee862ee9b9"
+  integrity sha1-ECyenpAF0+fjgpvwxPok7oYu6bk=
+
+async-each@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/async-each/-/async-each-1.0.3.tgz#b727dbf87d7651602f06f4d4ac387f47d91b0cbf"
+  integrity sha512-z/WhQ5FPySLdvREByI2vZiTWwCnF0moMJ1hK9YQwDTHKh6I7/uSckMetoRGb5UBZPC1z0jlw+n/XCgjeH7y1AQ==
+
+async@1.5.2, async@1.x, async@^1.3.0, async@^1.5.2, async@~1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
+  integrity sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=
+
+async@^0.9.0:
+  version "0.9.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-0.9.2.tgz#aea74d5e61c1f899613bf64bda66d4c78f2fd17d"
+  integrity sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0=
+
+async@^2.6.0:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.3.tgz#d72625e2344a3656e3a3ad4fa749fa83299d82ff"
+  integrity sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==
+  dependencies:
+    lodash "^4.17.14"
+
+async@~0.2.6:
+  version "0.2.10"
+  resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
+  integrity sha1-trvgsGdLnXGXCMo43owjfLUmw9E=
+
+asynckit@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
+  integrity sha1-x57Zf380y48robyXkLzDZkdLS3k=
+
+atob@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
+  integrity sha512-Wm6ukoaOGJi/73p/cl2GvLjTI5JM1k/O14isD73YML8StrH/7/lRFgmg8nICZgD3bZZvjwCGxtMOD3wWNAu8cg==
+
+aws-sdk@^2.1.49:
+  version "2.556.0"
+  resolved "https://registry.yarnpkg.com/aws-sdk/-/aws-sdk-2.556.0.tgz#5c96bacf7942b530b20c94f3307e6650a97fd7be"
+  integrity sha512-qILMUNl/a7FYWU67Y24OGsXFhyDHM4qYdplMR2tps/g17pN9bEQ5ijxvGzW2T8VVyAsTanmn+dFyl/CH38pC5Q==
+  dependencies:
+    buffer "4.9.1"
+    events "1.1.1"
+    ieee754 "1.1.13"
+    jmespath "0.15.0"
+    querystring "0.2.0"
+    sax "1.2.1"
+    url "0.10.3"
+    uuid "3.3.2"
+    xml2js "0.4.19"
+
+aws-sign2@~0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/aws-sign2/-/aws-sign2-0.7.0.tgz#b46e890934a9591f2d2f6f86d7e6a9f1b3fe76a8"
+  integrity sha1-tG6JCTSpWR8tL2+G1+ap8bP+dqg=
+
+aws4@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.8.0.tgz#f0e003d9ca9e7f59c7a508945d7b2ef9a04a542f"
+  integrity sha512-ReZxvNHIOv88FlT7rxcXIIC0fPt4KZqZbOlivyWtXLt8ESx84zd3kMC6iK5jVeS2qt+g7ftS7ye4fi06X5rtRQ==
+
+babel-code-frame@^6.22.0:
+  version "6.26.0"
+  resolved "https://registry.yarnpkg.com/babel-code-frame/-/babel-code-frame-6.26.0.tgz#63fd43f7dc1e3bb7ce35947db8fe369a3f58c74b"
+  integrity sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=
+  dependencies:
+    chalk "^1.1.3"
+    esutils "^2.0.2"
+    js-tokens "^3.0.2"
+
+babel-core@^5.0.0, babel-core@^5.4.0:
+  version "5.8.38"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-5.8.38.tgz#1fcaee79d7e61b750b00b8e54f6dfc9d0af86558"
+  integrity sha1-H8ruedfmG3ULALjlT238nQr4ZVg=
+  dependencies:
+    babel-plugin-constant-folding "^1.0.1"
+    babel-plugin-dead-code-elimination "^1.0.2"
+    babel-plugin-eval "^1.0.1"
+    babel-plugin-inline-environment-variables "^1.0.1"
+    babel-plugin-jscript "^1.0.4"
+    babel-plugin-member-expression-literals "^1.0.1"
+    babel-plugin-property-literals "^1.0.1"
+    babel-plugin-proto-to-assign "^1.0.3"
+    babel-plugin-react-constant-elements "^1.0.3"
+    babel-plugin-react-display-name "^1.0.3"
+    babel-plugin-remove-console "^1.0.1"
+    babel-plugin-remove-debugger "^1.0.1"
+    babel-plugin-runtime "^1.0.7"
+    babel-plugin-undeclared-variables-check "^1.0.2"
+    babel-plugin-undefined-to-void "^1.1.6"
+    babylon "^5.8.38"
+    bluebird "^2.9.33"
+    chalk "^1.0.0"
+    convert-source-map "^1.1.0"
+    core-js "^1.0.0"
+    debug "^2.1.1"
+    detect-indent "^3.0.0"
+    esutils "^2.0.0"
+    fs-readdir-recursive "^0.1.0"
+    globals "^6.4.0"
+    home-or-tmp "^1.0.0"
+    is-integer "^1.0.4"
+    js-tokens "1.0.1"
+    json5 "^0.4.0"
+    lodash "^3.10.0"
+    minimatch "^2.0.3"
+    output-file-sync "^1.1.0"
+    path-exists "^1.0.0"
+    path-is-absolute "^1.0.0"
+    private "^0.1.6"
+    regenerator "0.8.40"
+    regexpu "^1.3.0"
+    repeating "^1.1.2"
+    resolve "^1.1.6"
+    shebang-regex "^1.0.0"
+    slash "^1.0.0"
+    source-map "^0.5.0"
+    source-map-support "^0.2.10"
+    to-fast-properties "^1.0.0"
+    trim-right "^1.0.0"
+    try-resolve "^1.0.0"
+
+babel-loader@^5.0.0:
+  version "5.4.2"
+  resolved "https://registry.yarnpkg.com/babel-loader/-/babel-loader-5.4.2.tgz#77fe28d8e60d0f056b1c1bca25b8494cdaab9c76"
+  integrity sha1-d/4o2OYNDwVrHBvKJbhJTNqrnHY=
+  dependencies:
+    babel-core "^5.4.0"
+    loader-utils "^0.2.9"
+    object-assign "^3.0.0"
+
+babel-plugin-constant-folding@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-constant-folding/-/babel-plugin-constant-folding-1.0.1.tgz#8361d364c98e449c3692bdba51eff0844290aa8e"
+  integrity sha1-g2HTZMmORJw2kr26Ue/whEKQqo4=
+
+babel-plugin-dead-code-elimination@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-dead-code-elimination/-/babel-plugin-dead-code-elimination-1.0.2.tgz#5f7c451274dcd7cccdbfbb3e0b85dd28121f0f65"
+  integrity sha1-X3xFEnTc18zNv7s+C4XdKBIfD2U=
+
+babel-plugin-eval@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-eval/-/babel-plugin-eval-1.0.1.tgz#a2faed25ce6be69ade4bfec263f70169195950da"
+  integrity sha1-ovrtJc5r5preS/7CY/cBaRlZUNo=
+
+babel-plugin-inline-environment-variables@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-inline-environment-variables/-/babel-plugin-inline-environment-variables-1.0.1.tgz#1f58ce91207ad6a826a8bf645fafe68ff5fe3ffe"
+  integrity sha1-H1jOkSB61qgmqL9kX6/mj/X+P/4=
+
+babel-plugin-jscript@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/babel-plugin-jscript/-/babel-plugin-jscript-1.0.4.tgz#8f342c38276e87a47d5fa0a8bd3d5eb6ccad8fcc"
+  integrity sha1-jzQsOCduh6R9X6CovT1etsytj8w=
+
+babel-plugin-member-expression-literals@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-member-expression-literals/-/babel-plugin-member-expression-literals-1.0.1.tgz#cc5edb0faa8dc927170e74d6d1c02440021624d3"
+  integrity sha1-zF7bD6qNyScXDnTW0cAkQAIWJNM=
+
+babel-plugin-property-literals@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-property-literals/-/babel-plugin-property-literals-1.0.1.tgz#0252301900192980b1c118efea48ce93aab83336"
+  integrity sha1-AlIwGQAZKYCxwRjv6kjOk6q4MzY=
+
+babel-plugin-proto-to-assign@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/babel-plugin-proto-to-assign/-/babel-plugin-proto-to-assign-1.0.4.tgz#c49e7afd02f577bc4da05ea2df002250cf7cd123"
+  integrity sha1-xJ56/QL1d7xNoF6i3wAiUM980SM=
+  dependencies:
+    lodash "^3.9.3"
+
+babel-plugin-react-constant-elements@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/babel-plugin-react-constant-elements/-/babel-plugin-react-constant-elements-1.0.3.tgz#946736e8378429cbc349dcff62f51c143b34e35a"
+  integrity sha1-lGc26DeEKcvDSdz/YvUcFDs041o=
+
+babel-plugin-react-display-name@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/babel-plugin-react-display-name/-/babel-plugin-react-display-name-1.0.3.tgz#754fe38926e8424a4e7b15ab6ea6139dee0514fc"
+  integrity sha1-dU/jiSboQkpOexWrbqYTne4FFPw=
+
+babel-plugin-remove-console@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-remove-console/-/babel-plugin-remove-console-1.0.1.tgz#d8f24556c3a05005d42aaaafd27787f53ff013a7"
+  integrity sha1-2PJFVsOgUAXUKqqv0neH9T/wE6c=
+
+babel-plugin-remove-debugger@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/babel-plugin-remove-debugger/-/babel-plugin-remove-debugger-1.0.1.tgz#fd2ea3cd61a428ad1f3b9c89882ff4293e8c14c7"
+  integrity sha1-/S6jzWGkKK0fO5yJiC/0KT6MFMc=
+
+babel-plugin-runtime@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/babel-plugin-runtime/-/babel-plugin-runtime-1.0.7.tgz#bf7c7d966dd56ecd5c17fa1cb253c9acb7e54aaf"
+  integrity sha1-v3x9lm3Vbs1cF/ocslPJrLflSq8=
+
+babel-plugin-undeclared-variables-check@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/babel-plugin-undeclared-variables-check/-/babel-plugin-undeclared-variables-check-1.0.2.tgz#5cf1aa539d813ff64e99641290af620965f65dee"
+  integrity sha1-XPGqU52BP/ZOmWQSkK9iCWX2Xe4=
+  dependencies:
+    leven "^1.0.2"
+
+babel-plugin-undefined-to-void@^1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/babel-plugin-undefined-to-void/-/babel-plugin-undefined-to-void-1.1.6.tgz#7f578ef8b78dfae6003385d8417a61eda06e2f81"
+  integrity sha1-f1eO+LeN+uYAM4XYQXph7aBuL4E=
+
+babel-runtime@^5.1.10:
+  version "5.8.38"
+  resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-5.8.38.tgz#1c0b02eb63312f5f087ff20450827b425c9d4c19"
+  integrity sha1-HAsC62MxL18If/IEUIJ7QlydTBk=
+  dependencies:
+    core-js "^1.0.0"
+
+babylon@^5.8.38:
+  version "5.8.38"
+  resolved "https://registry.yarnpkg.com/babylon/-/babylon-5.8.38.tgz#ec9b120b11bf6ccd4173a18bf217e60b79859ffd"
+  integrity sha1-7JsSCxG/bM1Bc6GL8hfmC3mFn/0=
+
+balanced-match@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
+  integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
+
+base64-js@^1.0.2:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.1.tgz#58ece8cb75dd07e71ed08c736abc5fac4dbf8df1"
+  integrity sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==
+
+base@^0.11.1:
+  version "0.11.2"
+  resolved "https://registry.yarnpkg.com/base/-/base-0.11.2.tgz#7bde5ced145b6d551a90db87f83c558b4eb48a8f"
+  integrity sha512-5T6P4xPgpp0YDFvSWwEZ4NoE3aM4QBQXDzmVbraCkFj8zHM+mba8SyqB5DbZWyR7mYHo6Y7BdQo3MoA4m0TeQg==
+  dependencies:
+    cache-base "^1.0.1"
+    class-utils "^0.3.5"
+    component-emitter "^1.2.1"
+    define-property "^1.0.0"
+    isobject "^3.0.1"
+    mixin-deep "^1.2.0"
+    pascalcase "^0.1.1"
+
+basic-auth@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.1.tgz#b998279bf47ce38344b4f3cf916d4679bbf51e3a"
+  integrity sha512-NF+epuEdnUYVlGuhaxbbq+dvJttwLnGY+YixlXlME5KpQ5W3CnXA5cVTneY3SPbPDRkcjMbifrwmFYcClgOZeg==
+  dependencies:
+    safe-buffer "5.1.2"
+
+batch@0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/batch/-/batch-0.6.1.tgz#dc34314f4e679318093fc760272525f94bf25c16"
+  integrity sha1-3DQxT05nkxgJP8dgJyUl+UvyXBY=
+
+bcrypt-pbkdf@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz#a4301d389b6a43f9b67ff3ca11a3f6637e360e9e"
+  integrity sha1-pDAdOJtqQ/m2f/PKEaP2Y342Dp4=
+  dependencies:
+    tweetnacl "^0.14.3"
+
+benchmark@~1.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/benchmark/-/benchmark-1.0.0.tgz#2f1e2fa4c359f11122aa183082218e957e390c73"
+  integrity sha1-Lx4vpMNZ8REiqhgwgiGOlX45DHM=
+
+big.js@^3.1.3:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/big.js/-/big.js-3.2.0.tgz#a5fc298b81b9e0dca2e458824784b65c52ba588e"
+  integrity sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==
+
+binary-extensions@^1.0.0:
+  version "1.13.1"
+  resolved "https://registry.yarnpkg.com/binary-extensions/-/binary-extensions-1.13.1.tgz#598afe54755b2868a5330d2aff9d4ebb53209b65"
+  integrity sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==
+
+bluebird@^2.9.33:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-2.11.0.tgz#534b9033c022c9579c56ba3b3e5a5caafbb650e1"
+  integrity sha1-U0uQM8AiyVecVro7Plpcqvu2UOE=
+
+body-parser@1.19.0:
+  version "1.19.0"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.0.tgz#96b2709e57c9c4e09a6fd66a8fd979844f69f08a"
+  integrity sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==
+  dependencies:
+    bytes "3.1.0"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "1.7.2"
+    iconv-lite "0.4.24"
+    on-finished "~2.3.0"
+    qs "6.7.0"
+    raw-body "2.4.0"
+    type-is "~1.6.17"
+
+body@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/body/-/body-5.1.0.tgz#e4ba0ce410a46936323367609ecb4e6553125069"
+  integrity sha1-5LoM5BCkaTYyM2dgnstOZVMSUGk=
+  dependencies:
+    continuable-cache "^0.3.1"
+    error "^7.0.0"
+    raw-body "~1.1.0"
+    safe-json-parse "~1.0.1"
+
+brace-expansion@^1.0.0, brace-expansion@^1.1.7:
+  version "1.1.11"
+  resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
+  integrity sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==
+  dependencies:
+    balanced-match "^1.0.0"
+    concat-map "0.0.1"
+
+braces@^1.8.2:
+  version "1.8.5"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-1.8.5.tgz#ba77962e12dff969d6b76711e914b737857bf6a7"
+  integrity sha1-uneWLhLf+WnWt2cR6RS3N4V79qc=
+  dependencies:
+    expand-range "^1.8.1"
+    preserve "^0.2.0"
+    repeat-element "^1.1.2"
+
+braces@^2.3.1:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-2.3.2.tgz#5979fd3f14cd531565e5fa2df1abfff1dfaee729"
+  integrity sha512-aNdbnj9P8PjdXU4ybaWLK2IF3jc/EoDYbC7AazW6to3TRsfXxscC9UXOB5iDiEQrkyIbWp2SLQda4+QAa7nc3w==
+  dependencies:
+    arr-flatten "^1.1.0"
+    array-unique "^0.3.2"
+    extend-shallow "^2.0.1"
+    fill-range "^4.0.0"
+    isobject "^3.0.1"
+    repeat-element "^1.1.2"
+    snapdragon "^0.8.1"
+    snapdragon-node "^2.0.1"
+    split-string "^3.0.2"
+    to-regex "^3.0.1"
+
+breakable@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/breakable/-/breakable-1.0.0.tgz#784a797915a38ead27bad456b5572cb4bbaa78c1"
+  integrity sha1-eEp5eRWjjq0nutRWtVcstLuqeME=
+
+browser-stdout@1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/browser-stdout/-/browser-stdout-1.3.1.tgz#baa559ee14ced73452229bad7326467c61fabd60"
+  integrity sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==
+
+browserify-aes@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/browserify-aes/-/browserify-aes-0.4.0.tgz#067149b668df31c4b58533e02d01e806d8608e2c"
+  integrity sha1-BnFJtmjfMcS1hTPgLQHoBthgjiw=
+  dependencies:
+    inherits "^2.0.1"
+
+browserify-zlib@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/browserify-zlib/-/browserify-zlib-0.1.4.tgz#bb35f8a519f600e0fa6b8485241c979d0141fb2d"
+  integrity sha1-uzX4pRn2AOD6a4SFJByXnQFB+y0=
+  dependencies:
+    pako "~0.2.0"
+
+buffer-from@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
+  integrity sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==
+
+buffer@4.9.1, buffer@^4.9.0:
+  version "4.9.1"
+  resolved "https://registry.yarnpkg.com/buffer/-/buffer-4.9.1.tgz#6d1bb601b07a4efced97094132093027c95bc298"
+  integrity sha1-bRu2AbB6TvztlwlBMgkwJ8lbwpg=
+  dependencies:
+    base64-js "^1.0.2"
+    ieee754 "^1.1.4"
+    isarray "^1.0.0"
+
+builtin-modules@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
+  integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
+
+builtin-status-codes@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
+  integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
+
+bytes@1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-1.0.0.tgz#3569ede8ba34315fab99c3e92cb04c7220de1fa8"
+  integrity sha1-NWnt6Lo0MV+rmcPpLLBMciDeH6g=
+
+bytes@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.0.0.tgz#d32815404d689699f85a4ea4fa8755dd13a96048"
+  integrity sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=
+
+bytes@3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.0.tgz#f6cf7933a360e0588fa9fde85651cdc7f805d1f6"
+  integrity sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==
+
+cache-base@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/cache-base/-/cache-base-1.0.1.tgz#0a7f46416831c8b662ee36fe4e7c59d76f666ab2"
+  integrity sha512-AKcdTnFSWATd5/GCPRxr2ChwIJ85CeyrEyjRHlKxQ56d4XJMGym0uAiKn0xbLOGOl3+yRpOTi484dVCEc5AUzQ==
+  dependencies:
+    collection-visit "^1.0.0"
+    component-emitter "^1.2.1"
+    get-value "^2.0.6"
+    has-value "^1.0.0"
+    isobject "^3.0.1"
+    set-value "^2.0.0"
+    to-object-path "^0.3.0"
+    union-value "^1.0.0"
+    unset-value "^1.0.0"
+
+caller-path@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/caller-path/-/caller-path-0.1.0.tgz#94085ef63581ecd3daa92444a8fe94e82577751f"
+  integrity sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=
+  dependencies:
+    callsites "^0.2.0"
+
+callsites@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/callsites/-/callsites-0.2.0.tgz#afab96262910a7f33c19a5775825c69f34e350ca"
+  integrity sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=
+
+camelcase-keys@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/camelcase-keys/-/camelcase-keys-2.1.0.tgz#308beeaffdf28119051efa1d932213c91b8f92e7"
+  integrity sha1-MIvur/3ygRkFHvodkyITyRuPkuc=
+  dependencies:
+    camelcase "^2.0.0"
+    map-obj "^1.0.0"
+
+camelcase@^1.0.2, camelcase@^1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-1.2.1.tgz#9bb5304d2e0b56698b2c758b08a3eaa9daa58a39"
+  integrity sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=
+
+camelcase@^2.0.0, camelcase@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-2.1.1.tgz#7c1d16d679a1bbe59ca02cacecfb011e201f5a1f"
+  integrity sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=
+
+camelcase@^5.0.0:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/camelcase/-/camelcase-5.3.1.tgz#e3c9b31569e106811df242f715725a1f4c494320"
+  integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
+
+caseless@~0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/caseless/-/caseless-0.12.0.tgz#1b681c21ff84033c826543090689420d187151dc"
+  integrity sha1-G2gcIf+EAzyCZUMJBolCDRhxUdw=
+
+center-align@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/center-align/-/center-align-0.1.3.tgz#aa0d32629b6ee972200411cbd4461c907bc2b7ad"
+  integrity sha1-qg0yYptu6XIgBBHL1EYckHvCt60=
+  dependencies:
+    align-text "^0.1.3"
+    lazy-cache "^1.0.3"
+
+chalk@^1.0.0, chalk@^1.1.1, chalk@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-1.1.3.tgz#a8115c55e4a702fe4d150abd3872822a7e09fc98"
+  integrity sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=
+  dependencies:
+    ansi-styles "^2.2.1"
+    escape-string-regexp "^1.0.2"
+    has-ansi "^2.0.0"
+    strip-ansi "^3.0.0"
+    supports-color "^2.0.0"
+
+chalk@^2.0.0, chalk@^2.1.0, chalk@^2.3.0, chalk@^2.4.2, chalk@~2.4.1:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-2.4.2.tgz#cd42541677a54333cf541a49108c1432b44c9424"
+  integrity sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==
+  dependencies:
+    ansi-styles "^3.2.1"
+    escape-string-regexp "^1.0.5"
+    supports-color "^5.3.0"
+
+chalk@~0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-0.4.0.tgz#5199a3ddcd0c1efe23bc08c1b027b06176e0c64f"
+  integrity sha1-UZmj3c0MHv4jvAjBsCewYXbgxk8=
+  dependencies:
+    ansi-styles "~1.0.0"
+    has-color "~0.1.0"
+    strip-ansi "~0.1.0"
+
+chardet@^0.4.0:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
+  integrity sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=
+
+chokidar@^1.0.0:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.7.0.tgz#798e689778151c8076b4b360e5edd28cda2bb468"
+  integrity sha1-eY5ol3gVHIB2tLNg5e3SjNortGg=
+  dependencies:
+    anymatch "^1.3.0"
+    async-each "^1.0.0"
+    glob-parent "^2.0.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^2.0.0"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+  optionalDependencies:
+    fsevents "^1.0.0"
+
+chokidar@~1.5.1:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/chokidar/-/chokidar-1.5.2.tgz#293e728640cc93dd8277424334b3c6d4ad3a348a"
+  integrity sha1-KT5yhkDMk92Cd0JDNLPG1K06NIo=
+  dependencies:
+    anymatch "^1.3.0"
+    async-each "^1.0.0"
+    glob-parent "^2.0.0"
+    inherits "^2.0.1"
+    is-binary-path "^1.0.0"
+    is-glob "^2.0.0"
+    path-is-absolute "^1.0.0"
+    readdirp "^2.0.0"
+  optionalDependencies:
+    fsevents "^1.0.0"
+
+chownr@^1.1.1:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.3.tgz#42d837d5239688d55f303003a508230fa6727142"
+  integrity sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw==
+
+circular-json@^0.3.1:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"
+  integrity sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==
+
+cjson@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/cjson/-/cjson-0.3.0.tgz#e6439b90703d312ff6e2224097bea92ce3d02a14"
+  integrity sha1-5kObkHA9MS/24iJAl76pLOPQKhQ=
+  dependencies:
+    jsonlint "1.6.0"
+
+class-utils@^0.3.5:
+  version "0.3.6"
+  resolved "https://registry.yarnpkg.com/class-utils/-/class-utils-0.3.6.tgz#f93369ae8b9a7ce02fd41faad0ca83033190c463"
+  integrity sha512-qOhPa/Fj7s6TY8H8esGu5QNpMMQxz79h+urzrNYN6mn+9BnxlDGf5QZ+XeCDsxSjPqsSR56XOZOJmpeurnLMeg==
+  dependencies:
+    arr-union "^3.1.0"
+    define-property "^0.2.5"
+    isobject "^3.0.0"
+    static-extend "^0.1.1"
+
+cli-cursor@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cli-cursor/-/cli-cursor-2.1.0.tgz#b35dac376479facc3e94747d41d0d0f5238ffcb5"
+  integrity sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=
+  dependencies:
+    restore-cursor "^2.0.0"
+
+cli-width@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/cli-width/-/cli-width-2.2.0.tgz#ff19ede8a9a5e579324147b0c11f0fbcbabed639"
+  integrity sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=
+
+cli@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/cli/-/cli-1.0.1.tgz#22817534f24bfa4950c34d532d48ecbc621b8c14"
+  integrity sha1-IoF1NPJL+klQw01TLUjsvGIbjBQ=
+  dependencies:
+    exit "0.1.2"
+    glob "^7.1.1"
+
+cliui@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-2.1.0.tgz#4b475760ff80264c762c3a1719032e91c7fea0d1"
+  integrity sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=
+  dependencies:
+    center-align "^0.1.1"
+    right-align "^0.1.1"
+    wordwrap "0.0.2"
+
+cliui@^3.0.3:
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-3.2.0.tgz#120601537a916d29940f934da3b48d585a39213d"
+  integrity sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wrap-ansi "^2.0.0"
+
+cliui@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/cliui/-/cliui-4.1.0.tgz#348422dbe82d800b3022eef4f6ac10bf2e4d1b49"
+  integrity sha512-4FG+RSG9DL7uEwRUZXZn3SS34DiDPfzP0VOiEwtUWlE+AR2EIg+hSyvrIgUUfhdgR/UkAeW2QHgeP+hWrXs7jQ==
+  dependencies:
+    string-width "^2.1.1"
+    strip-ansi "^4.0.0"
+    wrap-ansi "^2.0.0"
+
+clone@^1.0.2:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/clone/-/clone-1.0.4.tgz#da309cc263df15994c688ca902179ca3c7cd7c7e"
+  integrity sha1-2jCcwmPfFZlMaIypAheco8fNfH4=
+
+co@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/co/-/co-4.6.0.tgz#6ea6bdf3d853ae54ccb8e47bfa0bf3f9031fb184"
+  integrity sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=
+
+code-point-at@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
+  integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
+
+coffee-script@>=1.2.0:
+  version "1.12.7"
+  resolved "https://registry.yarnpkg.com/coffee-script/-/coffee-script-1.12.7.tgz#c05dae0cb79591d05b3070a8433a98c9a89ccc53"
+  integrity sha512-fLeEhqwymYat/MpTPUjSKHVYYl0ec2mOyALEMLmzr5i1isuG+6jfI2j2d5oBO3VIzgUXgBVIcOT9uH1TFxBckw==
+
+coffeescript@~1.10.0:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/coffeescript/-/coffeescript-1.10.0.tgz#e7aa8301917ef621b35d8a39f348dcdd1db7e33e"
+  integrity sha1-56qDAZF+9iGzXYo580jc3R234z4=
+
+collection-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/collection-visit/-/collection-visit-1.0.0.tgz#4bc0373c164bc3291b4d368c829cf1a80a59dca0"
+  integrity sha1-S8A3PBZLwykbTTaMgpzxqApZ3KA=
+  dependencies:
+    map-visit "^1.0.0"
+    object-visit "^1.0.0"
+
+color-convert@^1.9.0:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/color-convert/-/color-convert-1.9.3.tgz#bb71850690e1f136567de629d2d5471deda4c1e8"
+  integrity sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==
+  dependencies:
+    color-name "1.1.3"
+
+color-name@1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
+  integrity sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=
+
+colors@0.5.x:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-0.5.1.tgz#7d0023eaeb154e8ee9fce75dcb923d0ed1667774"
+  integrity sha1-fQAj6usVTo7p/Oddy5I9DtFmd3Q=
+
+colors@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.1.2.tgz#168a4701756b6a7f51a12ce0c97bfa28c084ed63"
+  integrity sha1-FopHAXVran9RoSzgyXv6KMCE7WM=
+
+combined-stream@^1.0.6, combined-stream@~1.0.6:
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
+  integrity sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==
+  dependencies:
+    delayed-stream "~1.0.0"
+
+commander@2.15.1:
+  version "2.15.1"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.15.1.tgz#df46e867d0fc2aec66a34662b406a9ccafff5b0f"
+  integrity sha512-VlfT9F3V0v+jr4yxPc5gg9s62/fIVWsd2Bk2iD435um1NlGMYdVCq+MjcXnhYq2icNOizHr1kK+5TI6H0Hy0ag==
+
+commander@^2.12.1, commander@^2.5.0, commander@~2.20.3:
+  version "2.20.3"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.20.3.tgz#fd485e84c03eb4881c20722ba48035e8531aeb33"
+  integrity sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==
+
+commoner@~0.10.3:
+  version "0.10.8"
+  resolved "https://registry.yarnpkg.com/commoner/-/commoner-0.10.8.tgz#34fc3672cd24393e8bb47e70caa0293811f4f2c5"
+  integrity sha1-NPw2cs0kOT6LtH5wyqApOBH08sU=
+  dependencies:
+    commander "^2.5.0"
+    detective "^4.3.1"
+    glob "^5.0.15"
+    graceful-fs "^4.1.2"
+    iconv-lite "^0.4.5"
+    mkdirp "^0.5.0"
+    private "^0.1.6"
+    q "^1.1.2"
+    recast "^0.11.17"
+
+component-emitter@^1.2.1:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.0.tgz#16e4070fba8ae29b679f2215853ee181ab2eabc0"
+  integrity sha512-Rd3se6QB+sO1TwqZjscQrurpEPIfO0/yYnSin6Q/rD3mOutHvUrCAhJub3r90uNb+SESBuE0QYoB90YdfatsRg==
+
+compressible@~2.0.16:
+  version "2.0.17"
+  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.17.tgz#6e8c108a16ad58384a977f3a482ca20bff2f38c1"
+  integrity sha512-BGHeLCK1GV7j1bSmQQAi26X+GgWcTjLr/0tzSvMCl3LH1w1IJ4PFSPoV5316b30cneTziC+B1a+3OjoSUcQYmw==
+  dependencies:
+    mime-db ">= 1.40.0 < 2"
+
+compression@^1.5.2:
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/compression/-/compression-1.7.4.tgz#95523eff170ca57c29a0ca41e6fe131f41e5bb8f"
+  integrity sha512-jaSIDzP9pZVS4ZfQ+TzvtiWhdpFhE2RDHz8QJkpX9SIpLq88VueF5jJw6t+6CUQcAoA6t+x89MLrWAqpfDE8iQ==
+  dependencies:
+    accepts "~1.3.5"
+    bytes "3.0.0"
+    compressible "~2.0.16"
+    debug "2.6.9"
+    on-headers "~1.0.2"
+    safe-buffer "5.1.2"
+    vary "~1.1.2"
+
+concat-map@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
+  integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
+
+concat-stream@^1.4.1, concat-stream@^1.6.0:
+  version "1.6.2"
+  resolved "https://registry.yarnpkg.com/concat-stream/-/concat-stream-1.6.2.tgz#904bdf194cd3122fc675c77fc4ac3d4ff0fd1a34"
+  integrity sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==
+  dependencies:
+    buffer-from "^1.0.0"
+    inherits "^2.0.3"
+    readable-stream "^2.2.2"
+    typedarray "^0.0.6"
+
+connect-history-api-fallback@^1.3.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/connect-history-api-fallback/-/connect-history-api-fallback-1.6.0.tgz#8b32089359308d111115d81cad3fceab888f97bc"
+  integrity sha512-e54B99q/OUoH64zYYRf3HBP5z24G38h5D3qXu23JGRoigpX5Ss4r9ZnDk3g0Z8uQC2x2lPaJ+UlWBc1ZWBWdLg==
+
+connect-livereload@^0.5.0:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/connect-livereload/-/connect-livereload-0.5.4.tgz#80157d1371c9f37cc14039ab1895970d119dc3bc"
+  integrity sha1-gBV9E3HJ83zBQDmrGJWXDRGdw7w=
+
+connect@^3.4.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/connect/-/connect-3.7.0.tgz#5d49348910caa5e07a01800b030d0c35f20484f8"
+  integrity sha512-ZqRXc+tZukToSNmh5C2iWMSoV3X1YUcPbqEM4DkEG5tNQXrQUZCNVGGv3IuicnkMtPfGf3Xtp8WCXs295iQ1pQ==
+  dependencies:
+    debug "2.6.9"
+    finalhandler "1.1.2"
+    parseurl "~1.3.3"
+    utils-merge "1.0.1"
+
+console-browserify@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-browserify/-/console-browserify-1.1.0.tgz#f0241c45730a9fc6323b206dbf38edc741d0bb10"
+  integrity sha1-8CQcRXMKn8YyOyBtvzjtx0HQuxA=
+  dependencies:
+    date-now "^0.1.4"
+
+console-control-strings@^1.0.0, console-control-strings@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/console-control-strings/-/console-control-strings-1.1.0.tgz#3d7cf4464db6446ea644bf4b39507f9851008e8e"
+  integrity sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=
+
+constants-browserify@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/constants-browserify/-/constants-browserify-1.0.0.tgz#c20b96d8c617748aaf1c16021760cd27fcb8cb75"
+  integrity sha1-wguW2MYXdIqvHBYCF2DNJ/y4y3U=
+
+content-disposition@0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.3.tgz#e130caf7e7279087c5616c2007d0485698984fbd"
+  integrity sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==
+  dependencies:
+    safe-buffer "5.1.2"
+
+content-type@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
+  integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
+
+continuable-cache@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/continuable-cache/-/continuable-cache-0.3.1.tgz#bd727a7faed77e71ff3985ac93351a912733ad0f"
+  integrity sha1-vXJ6f67XfnH/OYWskzUakSczrQ8=
+
+convert-source-map@^1.1.0, convert-source-map@^1.1.1:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/convert-source-map/-/convert-source-map-1.6.0.tgz#51b537a8c43e0f04dec1993bffcdd504e758ac20"
+  integrity sha512-eFu7XigvxdZ1ETfbgPBohgyQ/Z++C0eEhTor0qRwBw9unw+L0/6V8wkSuGgzdThkiS5lSpdptOQPD8Ak40a+7A==
+  dependencies:
+    safe-buffer "~5.1.1"
+
+cookie-signature@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
+  integrity sha1-4wOogrNCzD7oylE6eZmXNNqzriw=
+
+cookie@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.0.tgz#beb437e7022b3b6d49019d088665303ebe9c14ba"
+  integrity sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg==
+
+copy-descriptor@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/copy-descriptor/-/copy-descriptor-0.1.1.tgz#676f6eb3c39997c2ee1ac3a924fd6124748f578d"
+  integrity sha1-Z29us8OZl8LuGsOpJP1hJHSPV40=
+
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+  integrity sha1-ZSKUwUZR2yj6k70tX/KYOk8IxjY=
+
+core-util-is@1.0.2, core-util-is@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
+  integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
+
+cross-spawn@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-5.1.0.tgz#e8bd0efee58fcff6f8f94510a0a554bbfa235449"
+  integrity sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=
+  dependencies:
+    lru-cache "^4.0.1"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
+cross-spawn@^6.0.0:
+  version "6.0.5"
+  resolved "https://registry.yarnpkg.com/cross-spawn/-/cross-spawn-6.0.5.tgz#4a5ec7c64dfae22c3a14124dbacdee846d80cbc4"
+  integrity sha512-eTVLrBSt7fjbDygz805pMnstIs2VTBNkRm0qxZd+M7A5XDdxVRWO5MxGBXZhjY4cqLYLdtrGqRf8mBPmzwSpWQ==
+  dependencies:
+    nice-try "^1.0.4"
+    path-key "^2.0.1"
+    semver "^5.5.0"
+    shebang-command "^1.2.0"
+    which "^1.2.9"
+
+crypto-browserify@3.3.0:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/crypto-browserify/-/crypto-browserify-3.3.0.tgz#b9fc75bb4a0ed61dcf1cd5dae96eb30c9c3e506c"
+  integrity sha1-ufx1u0oO1h3PHNXa6W6zDJw+UGw=
+  dependencies:
+    browserify-aes "0.4.0"
+    pbkdf2-compat "2.0.1"
+    ripemd160 "0.2.0"
+    sha.js "2.2.6"
+
+currently-unhandled@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
+  integrity sha1-mI3zP+qxke95mmE2nddsF635V+o=
+  dependencies:
+    array-find-index "^1.0.1"
+
+dashdash@^1.12.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/dashdash/-/dashdash-1.14.1.tgz#853cfa0f7cbe2fed5de20326b8dd581035f6e2f0"
+  integrity sha1-hTz6D3y+L+1d4gMmuN1YEDX24vA=
+  dependencies:
+    assert-plus "^1.0.0"
+
+date-now@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/date-now/-/date-now-0.1.4.tgz#eaf439fd4d4848ad74e5cc7dbef200672b9e345b"
+  integrity sha1-6vQ5/U1ISK105cx9vvIAZyueNFs=
+
+dateformat@~1.0.12:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/dateformat/-/dateformat-1.0.12.tgz#9f124b67594c937ff706932e4a642cca8dbbfee9"
+  integrity sha1-nxJLZ1lMk3/3BpMuSmQsyo27/uk=
+  dependencies:
+    get-stdin "^4.0.1"
+    meow "^3.3.0"
+
+debug@2.6.9, debug@^2.1.1, debug@^2.2.0, debug@^2.3.3:
+  version "2.6.9"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
+  integrity sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==
+  dependencies:
+    ms "2.0.0"
+
+debug@3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
+  integrity sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==
+  dependencies:
+    ms "2.0.0"
+
+debug@^3.0.0, debug@^3.1.0, debug@^3.2.5, debug@^3.2.6:
+  version "3.2.6"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-3.2.6.tgz#e83d17de16d8a7efb7717edbe5fb10135eee629b"
+  integrity sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==
+  dependencies:
+    ms "^2.1.1"
+
+decamelize@^1.0.0, decamelize@^1.1.1, decamelize@^1.1.2, decamelize@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-1.2.0.tgz#f6534d15148269b20352e7bee26f501f9a191290"
+  integrity sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=
+
+decode-uri-component@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+  integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
+
+deep-extend@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"
+  integrity sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==
+
+deep-is@~0.1.2, deep-is@~0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/deep-is/-/deep-is-0.1.3.tgz#b369d6fb5dbc13eecf524f91b070feedc357cf34"
+  integrity sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=
+
+define-property@^0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-0.2.5.tgz#c35b1ef918ec3c990f9a5bc57be04aacec5c8116"
+  integrity sha1-w1se+RjsPJkPmlvFe+BKrOxcgRY=
+  dependencies:
+    is-descriptor "^0.1.0"
+
+define-property@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-1.0.0.tgz#769ebaaf3f4a63aad3af9e8d304c9bbe79bfb0e6"
+  integrity sha1-dp66rz9KY6rTr56NMEybvnm/sOY=
+  dependencies:
+    is-descriptor "^1.0.0"
+
+define-property@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/define-property/-/define-property-2.0.2.tgz#d459689e8d654ba77e02a817f8710d702cb16e9d"
+  integrity sha512-jwK2UV4cnPpbcG7+VRARKTZPUWowwXA8bzH5NP6ud0oeAxyYPuGZUAC7hMugpCdz4BeSZl2Dl9k66CHJ/46ZYQ==
+  dependencies:
+    is-descriptor "^1.0.2"
+    isobject "^3.0.1"
+
+defined@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/defined/-/defined-1.0.0.tgz#c98d9bcef75674188e110969151199e39b1fa693"
+  integrity sha1-yY2bzvdWdBiOEQlpFRGZ45sfppM=
+
+definitelytyped-header-parser@^1.0.1, definitelytyped-header-parser@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/definitelytyped-header-parser/-/definitelytyped-header-parser-1.2.0.tgz#f21374b8a18fabcd3ba4b008a0bcbc9db2b7b4c4"
+  integrity sha512-xpg8uu/2YD/reaVsZV4oJ4g7UDYFqQGWvT1W9Tsj6q4VtWBSaig38Qgah0ZMnQGF9kAsAim08EXDO1nSi0+Nog==
+  dependencies:
+    "@types/parsimmon" "^1.3.0"
+    parsimmon "^1.2.0"
+
+defs@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/defs/-/defs-1.1.1.tgz#b22609f2c7a11ba7a3db116805c139b1caffa9d2"
+  integrity sha1-siYJ8sehG6ej2xFoBcE5scr/qdI=
+  dependencies:
+    alter "~0.2.0"
+    ast-traverse "~0.1.1"
+    breakable "~1.0.0"
+    esprima-fb "~15001.1001.0-dev-harmony-fb"
+    simple-fmt "~0.1.0"
+    simple-is "~0.2.0"
+    stringmap "~0.2.2"
+    stringset "~0.2.1"
+    tryor "~0.1.2"
+    yargs "~3.27.0"
+
+delayed-stream@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
+  integrity sha1-3zrhmayt+31ECqrgsp4icrJOxhk=
+
+delegates@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/delegates/-/delegates-1.0.0.tgz#84c6e159b81904fdca59a0ef44cd870d31250f9a"
+  integrity sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=
+
+depd@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
+  integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
+
+destroy@~1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
+  integrity sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=
+
+detect-file@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/detect-file/-/detect-file-1.0.0.tgz#f0d66d03672a825cb1b73bdb3fe62310c8e552b7"
+  integrity sha1-8NZtA2cqglyxtzvbP+YjEMjlUrc=
+
+detect-indent@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/detect-indent/-/detect-indent-3.0.1.tgz#9dc5e5ddbceef8325764b9451b02bc6d54084f75"
+  integrity sha1-ncXl3bzu+DJXZLlFGwK8bVQIT3U=
+  dependencies:
+    get-stdin "^4.0.1"
+    minimist "^1.1.0"
+    repeating "^1.1.0"
+
+detect-libc@^1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/detect-libc/-/detect-libc-1.0.3.tgz#fa137c4bd698edf55cd5cd02ac559f91a4c4ba9b"
+  integrity sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=
+
+detective@^4.3.1:
+  version "4.7.1"
+  resolved "https://registry.yarnpkg.com/detective/-/detective-4.7.1.tgz#0eca7314338442febb6d65da54c10bb1c82b246e"
+  integrity sha512-H6PmeeUcZloWtdt4DAkFyzFL94arpHr3NOwwmVILFiy+9Qd4JTxxXrzfyGk/lmct2qVGBwTSwSXagqu2BxmWig==
+  dependencies:
+    acorn "^5.2.1"
+    defined "^1.0.0"
+
+diff@3.5.0:
+  version "3.5.0"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-3.5.0.tgz#800c0dd1e0a8bfbc95835c202ad220fe317e5a12"
+  integrity sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA==
+
+diff@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.1.tgz#0c667cb467ebbb5cea7f14f135cc2dba7780a8ff"
+  integrity sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q==
+
+doctrine@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-2.1.0.tgz#5cd01fc101621b42c4cd7f5d1a66243716d3f39d"
+  integrity sha512-35mSku4ZXK0vfCuHEDAwt55dg2jNajHZ1odvF+8SSr82EsZY4QmXfuWso8oEd8zRhVObSN18aM0CjSdoBX7zIw==
+  dependencies:
+    esutils "^2.0.2"
+
+domain-browser@^1.1.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/domain-browser/-/domain-browser-1.2.0.tgz#3d31f50191a6749dd1375a7f522e823d42e54eda"
+  integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
+
+download-file-sync@^1.0.4:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/download-file-sync/-/download-file-sync-1.0.4.tgz#d3e3c543f836f41039455b9034c72e355b036019"
+  integrity sha1-0+PFQ/g29BA5RVuQNMcuNVsDYBk=
+
+dts-critic@^1.0.4:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/dts-critic/-/dts-critic-1.2.0.tgz#fc358cad7461180ad426438ab88b249fedebd5c0"
+  integrity sha512-z6VI1Sz7xxy0BgN6YsWuG9hbRIfph3U9hwrfNHLnLzsq865VYyjo5xKKUgXPuqMgJ04BUF1LGYQJ+kWyWwvUvQ==
+  dependencies:
+    definitelytyped-header-parser "^1.2.0"
+    download-file-sync "^1.0.4"
+    yargs "^12.0.5"
+
+dtslint@^0.5.5:
+  version "0.5.9"
+  resolved "https://registry.yarnpkg.com/dtslint/-/dtslint-0.5.9.tgz#462299c97f675a224758a3aafa2a519737584f9c"
+  integrity sha512-/RU8h05QMS1DLZsMsDpJ6rvtEXrXQ0KRGT0q7IkqvDbCDa3fJRGLqGrVFLLaUTCl/4p2+sgsOEBCPsFqV5BRXA==
+  dependencies:
+    definitelytyped-header-parser "^1.0.1"
+    dts-critic "^1.0.4"
+    fs-extra "^6.0.1"
+    request "^2.88.0"
+    strip-json-comments "^2.0.1"
+    tslint "^5.14.0"
+    typescript next
+
+dustjs-linkedin@^2.0.2:
+  version "2.7.5"
+  resolved "https://registry.yarnpkg.com/dustjs-linkedin/-/dustjs-linkedin-2.7.5.tgz#618f063f72c19b78c8055ac2301c75b7b6bbdccc"
+  integrity sha1-YY8GP3LBm3jIBVrCMBx1t7a73Mw=
+  dependencies:
+    chokidar "~1.5.1"
+    cli "^1.0.1"
+
+ebnf-parser@0.1.10:
+  version "0.1.10"
+  resolved "https://registry.yarnpkg.com/ebnf-parser/-/ebnf-parser-0.1.10.tgz#cd1f6ba477c5638c40c97ed9b572db5bab5d8331"
+  integrity sha1-zR9rpHfFY4xAyX7ZtXLbW6tdgzE=
+
+ecc-jsbn@~0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/ecc-jsbn/-/ecc-jsbn-0.1.2.tgz#3a83a904e54353287874c564b7549386849a98c9"
+  integrity sha1-OoOpBOVDUyh4dMVkt1SThoSamMk=
+  dependencies:
+    jsbn "~0.1.0"
+    safer-buffer "^2.1.0"
+
+eco@~1.1.0-rc-3:
+  version "1.1.0-rc-3"
+  resolved "https://registry.yarnpkg.com/eco/-/eco-1.1.0-rc-3.tgz#742a32c4615af705ab3e9a46b6ce5c16dbc57262"
+  integrity sha1-dCoyxGFa9wWrPppGts5cFtvFcmI=
+  dependencies:
+    coffee-script ">=1.2.0"
+    strscan ">=1.0.1"
+
+ee-first@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
+  integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
+
+emojis-list@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/emojis-list/-/emojis-list-2.1.0.tgz#4daa4d9db00f9819880c79fa457ae5b09a1fd389"
+  integrity sha1-TapNnbAPmBmIDHn6RXrlsJof04k=
+
+encodeurl@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+  integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
+
+end-of-stream@^1.1.0:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/end-of-stream/-/end-of-stream-1.4.4.tgz#5ae64a5f45057baf3626ec14da0ca5e4b2431eb0"
+  integrity sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==
+  dependencies:
+    once "^1.4.0"
+
+enhanced-resolve@~0.9.0:
+  version "0.9.1"
+  resolved "https://registry.yarnpkg.com/enhanced-resolve/-/enhanced-resolve-0.9.1.tgz#4d6e689b3725f86090927ccc86cd9f1635b89e2e"
+  integrity sha1-TW5omzcl+GCQknzMhs2fFjW4ni4=
+  dependencies:
+    graceful-fs "^4.1.2"
+    memory-fs "^0.2.0"
+    tapable "^0.1.8"
+
+errno@^0.1.3:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/errno/-/errno-0.1.7.tgz#4684d71779ad39af177e3f007996f7c67c852618"
+  integrity sha512-MfrRBDWzIWifgq6tJj60gkAwtLNb6sQPlcFrSOflcP1aFmmruKQ2wRnze/8V6kgyz7H3FF8Npzv78mZ7XLLflg==
+  dependencies:
+    prr "~1.0.1"
+
+error-ex@^1.2.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
+  integrity sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==
+  dependencies:
+    is-arrayish "^0.2.1"
+
+error@^7.0.0:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/error/-/error-7.2.0.tgz#80c989885635b41df9309d145834a4f125ae2245"
+  integrity sha512-M6t3j3Vt3uDicrViMP5fLq2AeADNrCVFD8Oj4Qt2MHsX0mPYG7D5XdnEfSdRpaHQzjAJ19wu+I1mw9rQYMTAPg==
+  dependencies:
+    string-template "~0.2.1"
+
+es6-promise@^4.0.3:
+  version "4.2.8"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
+  integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
+
+es6-promisify@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
+  integrity sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=
+  dependencies:
+    es6-promise "^4.0.3"
+
+escape-html@~1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
+  integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
+
+escape-string-regexp@1.0.5, escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
+  integrity sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=
+
+escodegen@1.3.x:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.3.3.tgz#f024016f5a88e046fd12005055e939802e6c5f23"
+  integrity sha1-8CQBb1qI4Eb9EgBQVek5gC5sXyM=
+  dependencies:
+    esprima "~1.1.1"
+    estraverse "~1.5.0"
+    esutils "~1.0.0"
+  optionalDependencies:
+    source-map "~0.1.33"
+
+escodegen@1.7.x:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/escodegen/-/escodegen-1.7.1.tgz#30ecfcf66ca98dc67cd2fd162abeb6eafa8ce6fc"
+  integrity sha1-MOz89mypjcZ80v0WKr626vqM5vw=
+  dependencies:
+    esprima "^1.2.2"
+    estraverse "^1.9.1"
+    esutils "^2.0.2"
+    optionator "^0.5.0"
+  optionalDependencies:
+    source-map "~0.2.0"
+
+eslint-scope@^3.7.1:
+  version "3.7.3"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.3.tgz#bb507200d3d17f60247636160b4826284b108535"
+  integrity sha512-W+B0SvF4gamyCTmUc+uITPY0989iXVfKvhwtmJocTaYoc/3khEHmEmvfY/Gn9HA9VV75jrQECsHizkNw1b68FA==
+  dependencies:
+    esrecurse "^4.1.0"
+    estraverse "^4.1.1"
+
+eslint-visitor-keys@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
+  integrity sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==
+
+eslint@^4.0.0:
+  version "4.19.1"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.19.1.tgz#32d1d653e1d90408854bfb296f076ec7e186a300"
+  integrity sha512-bT3/1x1EbZB7phzYu7vCr1v3ONuzDtX8WjuM9c0iYxe+cq+pwcKEoQjl7zd3RpC6YOLgnSy3cTN58M2jcoPDIQ==
+  dependencies:
+    ajv "^5.3.0"
+    babel-code-frame "^6.22.0"
+    chalk "^2.1.0"
+    concat-stream "^1.6.0"
+    cross-spawn "^5.1.0"
+    debug "^3.1.0"
+    doctrine "^2.1.0"
+    eslint-scope "^3.7.1"
+    eslint-visitor-keys "^1.0.0"
+    espree "^3.5.4"
+    esquery "^1.0.0"
+    esutils "^2.0.2"
+    file-entry-cache "^2.0.0"
+    functional-red-black-tree "^1.0.1"
+    glob "^7.1.2"
+    globals "^11.0.1"
+    ignore "^3.3.3"
+    imurmurhash "^0.1.4"
+    inquirer "^3.0.6"
+    is-resolvable "^1.0.0"
+    js-yaml "^3.9.1"
+    json-stable-stringify-without-jsonify "^1.0.1"
+    levn "^0.3.0"
+    lodash "^4.17.4"
+    minimatch "^3.0.2"
+    mkdirp "^0.5.1"
+    natural-compare "^1.4.0"
+    optionator "^0.8.2"
+    path-is-inside "^1.0.2"
+    pluralize "^7.0.0"
+    progress "^2.0.0"
+    regexpp "^1.0.1"
+    require-uncached "^1.0.3"
+    semver "^5.3.0"
+    strip-ansi "^4.0.0"
+    strip-json-comments "~2.0.1"
+    table "4.0.2"
+    text-table "~0.2.0"
+
+espree@^3.5.4:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-3.5.4.tgz#b0f447187c8a8bed944b815a660bddf5deb5d1a7"
+  integrity sha512-yAcIQxtmMiB/jL32dzEp2enBeidsB7xWPLNiw3IIkpVds1P+h7qF9YwJq1yUNzp2OKXgAprs4F61ih66UsoD1A==
+  dependencies:
+    acorn "^5.5.0"
+    acorn-jsx "^3.0.0"
+
+esprima-fb@~15001.1001.0-dev-harmony-fb:
+  version "15001.1001.0-dev-harmony-fb"
+  resolved "https://registry.yarnpkg.com/esprima-fb/-/esprima-fb-15001.1001.0-dev-harmony-fb.tgz#43beb57ec26e8cf237d3dd8b33e42533577f2659"
+  integrity sha1-Q761fsJujPI3092LM+QlM1d/Jlk=
+
+esprima@1.1.x, esprima@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-1.1.1.tgz#5b6f1547f4d102e670e140c509be6771d6aeb549"
+  integrity sha1-W28VR/TRAuZw4UDFCb5ncdautUk=
+
+esprima@2.5.x:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.5.0.tgz#f387a46fd344c1b1a39baf8c20bfb43b6d0058cc"
+  integrity sha1-84ekb9NEwbGjm6+MIL+0O20AWMw=
+
+esprima@^1.2.2:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-1.2.5.tgz#0993502feaf668138325756f30f9a51feeec11e9"
+  integrity sha1-CZNQL+r2aBODJXVvMPmlH+7sEek=
+
+esprima@^2.6.0:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+  integrity sha1-luO3DVd59q1JzQMmc9HDEnZ7pYE=
+
+esprima@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
+  integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
+
+esprima@~3.1.0:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
+  integrity sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=
+
+esquery@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.0.1.tgz#406c51658b1f5991a5f9b62b1dc25b00e3e5c708"
+  integrity sha512-SmiyZ5zIWH9VM+SRUReLS5Q8a7GxtRdxEBVZpm98rJM7Sb+A9DVCndXfkeFUd3byderg+EbDkfnevfCwynWaNA==
+  dependencies:
+    estraverse "^4.0.0"
+
+esrecurse@^4.1.0:
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.2.1.tgz#007a3b9fdbc2b3bb87e4879ea19c92fdbd3942cf"
+  integrity sha512-64RBB++fIOAXPw3P9cy89qfMlvZEXZkqqJkjqqXIvzP5ezRZjW+lPWjw35UX/3EhUPFYbg5ER4JYgDw4007/DQ==
+  dependencies:
+    estraverse "^4.1.0"
+
+estraverse@^1.9.1:
+  version "1.9.3"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.9.3.tgz#af67f2dc922582415950926091a4005d29c9bb44"
+  integrity sha1-r2fy3JIlgkFZUJJgkaQAXSnJu0Q=
+
+estraverse@^4.0.0, estraverse@^4.1.0, estraverse@^4.1.1:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-4.3.0.tgz#398ad3f3c5a24948be7725e83d11a7de28cdbd1d"
+  integrity sha512-39nnKffWz8xN1BU/2c79n9nB9HDzo0niYUqx6xyqUnyoAnQyyWpOTdZEeiCch8BBu515t4wp9ZmgVfVhn9EBpw==
+
+estraverse@~1.5.0:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/estraverse/-/estraverse-1.5.1.tgz#867a3e8e58a9f84618afb6c2ddbcd916b7cbaf71"
+  integrity sha1-hno+jlip+EYYr7bC3bzZFrfLr3E=
+
+esutils@^2.0.0, esutils@^2.0.2:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
+  integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
+
+esutils@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/esutils/-/esutils-1.0.0.tgz#8151d358e20c8acc7fb745e7472c0025fe496570"
+  integrity sha1-gVHTWOIMisx/t0XnRywAJf5JZXA=
+
+etag@~1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
+  integrity sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=
+
+eventemitter2@~0.4.13:
+  version "0.4.14"
+  resolved "https://registry.yarnpkg.com/eventemitter2/-/eventemitter2-0.4.14.tgz#8f61b75cde012b2e9eb284d4545583b5643b61ab"
+  integrity sha1-j2G3XN4BKy6esoTUVFWDtWQ7Yas=
+
+eventemitter3@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-4.0.0.tgz#d65176163887ee59f386d64c82610b696a4a74eb"
+  integrity sha512-qerSRB0p+UDEssxTtm6EDKcE7W4OaoisfIMl4CngyEhjpYglocpNg6UEqCvemdGhosAsg4sO2dXJOdyBifPGCg==
+
+events@1.1.1, events@^1.0.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/events/-/events-1.1.1.tgz#9ebdb7635ad099c70dcc4c2a1f5004288e8bd924"
+  integrity sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ=
+
+eventsource@^1.0.7:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
+  integrity sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==
+  dependencies:
+    original "^1.0.0"
+
+execa@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/execa/-/execa-1.0.0.tgz#c6236a5bb4df6d6f15e88e7f017798216749ddd8"
+  integrity sha512-adbxcyWV46qiHyvSp50TKt05tB4tK3HcmF7/nxfAdhnox83seTDbwnaqKO4sXRy7roHAIFqJP/Rw/AuEbX61LA==
+  dependencies:
+    cross-spawn "^6.0.0"
+    get-stream "^4.0.0"
+    is-stream "^1.1.0"
+    npm-run-path "^2.0.0"
+    p-finally "^1.0.0"
+    signal-exit "^3.0.0"
+    strip-eof "^1.0.0"
+
+exit@0.1.2, exit@~0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/exit/-/exit-0.1.2.tgz#0632638f8d877cc82107d30a0fff1a17cba1cd0c"
+  integrity sha1-BjJjj42HfMghB9MKD/8aF8uhzQw=
+
+expand-brackets@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-0.1.5.tgz#df07284e342a807cd733ac5af72411e581d1177b"
+  integrity sha1-3wcoTjQqgHzXM6xa9yQR5YHRF3s=
+  dependencies:
+    is-posix-bracket "^0.1.0"
+
+expand-brackets@^2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/expand-brackets/-/expand-brackets-2.1.4.tgz#b77735e315ce30f6b6eff0f83b04151a22449622"
+  integrity sha1-t3c14xXOMPa27/D4OwQVGiJEliI=
+  dependencies:
+    debug "^2.3.3"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    posix-character-classes "^0.1.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+expand-range@^1.8.1:
+  version "1.8.2"
+  resolved "https://registry.yarnpkg.com/expand-range/-/expand-range-1.8.2.tgz#a299effd335fe2721ebae8e257ec79644fc85337"
+  integrity sha1-opnv/TNf4nIeuujiV+x5ZE/IUzc=
+  dependencies:
+    fill-range "^2.1.0"
+
+expand-tilde@^2.0.0, expand-tilde@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/expand-tilde/-/expand-tilde-2.0.2.tgz#97e801aa052df02454de46b02bf621642cdc8502"
+  integrity sha1-l+gBqgUt8CRU3kawK/YhZCzchQI=
+  dependencies:
+    homedir-polyfill "^1.0.1"
+
+express@^4.13.3:
+  version "4.17.1"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
+  integrity sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==
+  dependencies:
+    accepts "~1.3.7"
+    array-flatten "1.1.1"
+    body-parser "1.19.0"
+    content-disposition "0.5.3"
+    content-type "~1.0.4"
+    cookie "0.4.0"
+    cookie-signature "1.0.6"
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "~1.1.2"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.5"
+    qs "6.7.0"
+    range-parser "~1.2.1"
+    safe-buffer "5.1.2"
+    send "0.17.1"
+    serve-static "1.14.1"
+    setprototypeof "1.1.1"
+    statuses "~1.5.0"
+    type-is "~1.6.18"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
+extend-shallow@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  integrity sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=
+  dependencies:
+    is-extendable "^0.1.0"
+
+extend-shallow@^3.0.0, extend-shallow@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-3.0.2.tgz#26a71aaf073b39fb2127172746131c2704028db8"
+  integrity sha1-Jqcarwc7OfshJxcnRhMcJwQCjbg=
+  dependencies:
+    assign-symbols "^1.0.0"
+    is-extendable "^1.0.1"
+
+extend@^3.0.0, extend@~3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
+  integrity sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==
+
+external-editor@^2.0.4:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-2.2.0.tgz#045511cfd8d133f3846673d1047c154e214ad3d5"
+  integrity sha512-bSn6gvGxKt+b7+6TKEv1ZycHleA7aHhRHyAqJyp5pbUFuYYNIzpZnQDk7AsYckyWdEnTeAnay0aCy2aV6iTk9A==
+  dependencies:
+    chardet "^0.4.0"
+    iconv-lite "^0.4.17"
+    tmp "^0.0.33"
+
+extglob@^0.3.1:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-0.3.2.tgz#2e18ff3d2f49ab2765cec9023f011daa8d8349a1"
+  integrity sha1-Lhj/PS9JqydlzskCPwEdqo2DSaE=
+  dependencies:
+    is-extglob "^1.0.0"
+
+extglob@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/extglob/-/extglob-2.0.4.tgz#ad00fe4dc612a9232e8718711dc5cb5ab0285543"
+  integrity sha512-Nmb6QXkELsuBr24CJSkilo6UHHgbekK5UiZgfE6UHD3Eb27YC6oD+bhcT+tJ6cl8dmsgdQxnWlcry8ksBIBLpw==
+  dependencies:
+    array-unique "^0.3.2"
+    define-property "^1.0.0"
+    expand-brackets "^2.1.4"
+    extend-shallow "^2.0.1"
+    fragment-cache "^0.2.1"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+extsprintf@1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
+  integrity sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=
+
+extsprintf@^1.2.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
+  integrity sha1-4mifjzVvrWLMplo6kcXfX5VRaS8=
+
+fast-deep-equal@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.1.0.tgz#c053477817c86b51daa853c81e059b733d023614"
+  integrity sha1-wFNHeBfIa1HaqFPIHgWbcz0CNhQ=
+
+fast-deep-equal@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
+  integrity sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=
+
+fast-json-stable-stringify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
+  integrity sha1-1RQsDK7msRifh9OnYREGT4bIu/I=
+
+fast-levenshtein@~1.0.0:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-1.0.7.tgz#0178dcdee023b92905193af0959e8a7639cfdcb9"
+  integrity sha1-AXjc3uAjuSkFGTrwlZ6KdjnP3Lk=
+
+fast-levenshtein@~2.0.4:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/fast-levenshtein/-/fast-levenshtein-2.0.6.tgz#3d8a5c66883a16a30ca8643e851f19baa7797917"
+  integrity sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=
+
+faye-websocket@^0.10.0, faye-websocket@~0.10.0:
+  version "0.10.0"
+  resolved "https://registry.yarnpkg.com/faye-websocket/-/faye-websocket-0.10.0.tgz#4e492f8d04dfb6f89003507f6edbf2d501e7c6f4"
+  integrity sha1-TkkvjQTftviQA1B/btvy1QHnxvQ=
+  dependencies:
+    websocket-driver ">=0.5.1"
+
+faye-websocket@~0.11.1:
+  version "0.11.3"
+  resolved "https://registry.yarnpkg.com/faye-websocket/-/faye-websocket-0.11.3.tgz#5c0e9a8968e8912c286639fde977a8b209f2508e"
+  integrity sha512-D2y4bovYpzziGgbHYtGCMjlJM36vAl/y+xUyn1C+FVx8szd1E+86KwVw6XvYSzOP8iMpm1X0I4xJD+QtUb36OA==
+  dependencies:
+    websocket-driver ">=0.5.1"
+
+fg-lodash@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/fg-lodash/-/fg-lodash-0.0.2.tgz#988352537f427da6af222129bb63acca49e62fa3"
+  integrity sha1-mINSU39CfaavIiEpu2OsyknmL6M=
+  dependencies:
+    lodash "^2.4.1"
+    underscore.string "~2.3.3"
+
+figures@^1.0.1:
+  version "1.7.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-1.7.0.tgz#cbe1e3affcf1cd44b80cadfed28dc793a9701d2e"
+  integrity sha1-y+Hjr/zxzUS4DK3+0o3Hk6lwHS4=
+  dependencies:
+    escape-string-regexp "^1.0.5"
+    object-assign "^4.1.0"
+
+figures@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/figures/-/figures-2.0.0.tgz#3ab1a2d2a62c8bfb431a0c94cb797a2fce27c962"
+  integrity sha1-OrGi0qYsi/tDGgyUy3l6L84nyWI=
+  dependencies:
+    escape-string-regexp "^1.0.5"
+
+file-entry-cache@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-2.0.0.tgz#c392990c3e684783d838b8c84a45d8a048458361"
+  integrity sha1-w5KZDD5oR4PYOLjISkXYoEhFg2E=
+  dependencies:
+    flat-cache "^1.2.1"
+    object-assign "^4.0.1"
+
+file-sync-cmp@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/file-sync-cmp/-/file-sync-cmp-0.1.1.tgz#a5e7a8ffbfa493b43b923bbd4ca89a53b63b612b"
+  integrity sha1-peeo/7+kk7Q7kju9TKiaU7Y7YSs=
+
+filename-regex@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/filename-regex/-/filename-regex-2.0.1.tgz#c1c4b9bee3e09725ddb106b75c1e301fe2f18b26"
+  integrity sha1-wcS5vuPglyXdsQa3XB4wH+LxiyY=
+
+fileset@0.2.x:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/fileset/-/fileset-0.2.1.tgz#588ef8973c6623b2a76df465105696b96aac8067"
+  integrity sha1-WI74lzxmI7KnbfRlEFaWuWqsgGc=
+  dependencies:
+    glob "5.x"
+    minimatch "2.x"
+
+fill-range@^2.1.0:
+  version "2.2.4"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-2.2.4.tgz#eb1e773abb056dcd8df2bfdf6af59b8b3a936565"
+  integrity sha512-cnrcCbj01+j2gTG921VZPnHbjmdAf8oQV/iGeV2kZxGSyfYjjTyY79ErsK1WJWMpw6DaApEX72binqJE+/d+5Q==
+  dependencies:
+    is-number "^2.1.0"
+    isobject "^2.0.0"
+    randomatic "^3.0.0"
+    repeat-element "^1.1.2"
+    repeat-string "^1.5.2"
+
+fill-range@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-4.0.0.tgz#d544811d428f98eb06a63dc402d2403c328c38f7"
+  integrity sha1-1USBHUKPmOsGpj3EAtJAPDKMOPc=
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+    to-regex-range "^2.1.0"
+
+finalhandler@1.1.2, finalhandler@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
+  integrity sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==
+  dependencies:
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    statuses "~1.5.0"
+    unpipe "~1.0.0"
+
+find-up@^1.0.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-1.1.2.tgz#6b2e9822b1a2ce0a60ab64d610eccad53cb24d0f"
+  integrity sha1-ay6YIrGizgpgq2TWEOzK1TyyTQ8=
+  dependencies:
+    path-exists "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+find-up@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/find-up/-/find-up-3.0.0.tgz#49169f1d7993430646da61ecc5ae355c21c97b73"
+  integrity sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==
+  dependencies:
+    locate-path "^3.0.0"
+
+findup-sync@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-2.0.0.tgz#9326b1488c22d1a6088650a86901b2d9a90a2cbc"
+  integrity sha1-kyaxSIwi0aYIhlCoaQGy2akKLLw=
+  dependencies:
+    detect-file "^1.0.0"
+    is-glob "^3.1.0"
+    micromatch "^3.0.4"
+    resolve-dir "^1.0.1"
+
+findup-sync@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/findup-sync/-/findup-sync-0.3.0.tgz#37930aa5d816b777c03445e1966cc6790a4c0b16"
+  integrity sha1-N5MKpdgWt3fANEXhlmzGeQpMCxY=
+  dependencies:
+    glob "~5.0.0"
+
+fined@^1.0.1:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/fined/-/fined-1.2.0.tgz#d00beccf1aa2b475d16d423b0238b713a2c4a37b"
+  integrity sha512-ZYDqPLGxDkDhDZBjZBb+oD1+j0rA4E0pXY50eplAAOPg2N/gUBSSk5IM1/QhPfyVo19lJ+CvXpqfvk+b2p/8Ng==
+  dependencies:
+    expand-tilde "^2.0.2"
+    is-plain-object "^2.0.3"
+    object.defaults "^1.1.0"
+    object.pick "^1.2.0"
+    parse-filepath "^1.0.1"
+
+flagged-respawn@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/flagged-respawn/-/flagged-respawn-1.0.1.tgz#e7de6f1279ddd9ca9aac8a5971d618606b3aab41"
+  integrity sha512-lNaHNVymajmk0OJMBn8fVUAU1BtDeKIqKoVhk4xAALB57aALg6b4W0MfJ/cUE0g9YBXy5XhSlPIpYIJ7HaY/3Q==
+
+flat-cache@^1.2.1:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-1.3.4.tgz#2c2ef77525cc2929007dfffa1dd314aa9c9dee6f"
+  integrity sha512-VwyB3Lkgacfik2vhqR4uv2rvebqmDvFu4jlN/C1RzWoJEo8I7z4Q404oiqYCkq41mni8EzQnm95emU9seckwtg==
+  dependencies:
+    circular-json "^0.3.1"
+    graceful-fs "^4.1.2"
+    rimraf "~2.6.2"
+    write "^0.2.1"
+
+follow-redirects@^1.0.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.9.0.tgz#8d5bcdc65b7108fe1508649c79c12d732dcedb4f"
+  integrity sha512-CRcPzsSIbXyVDl0QI01muNDu69S8trU4jArW9LpOt2WtC6LyUJetcIrmfHsRBx7/Jb6GHJUiuqyYxPooFfNt6A==
+  dependencies:
+    debug "^3.0.0"
+
+for-in@^1.0.1, for-in@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
+  integrity sha1-gQaNKVqBQuwKxybG4iAMMPttXoA=
+
+for-own@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-0.1.5.tgz#5265c681a4f294dabbf17c9509b6763aa84510ce"
+  integrity sha1-UmXGgaTylNq78XyVCbZ2OqhFEM4=
+  dependencies:
+    for-in "^1.0.1"
+
+for-own@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/for-own/-/for-own-1.0.0.tgz#c63332f415cedc4b04dbfe70cf836494c53cb44b"
+  integrity sha1-xjMy9BXO3EsE2/5wz4NklMU8tEs=
+  dependencies:
+    for-in "^1.0.1"
+
+forever-agent@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/forever-agent/-/forever-agent-0.6.1.tgz#fbc71f0c41adeb37f96c577ad1ed42d8fdacca91"
+  integrity sha1-+8cfDEGt6zf5bFd60e1C2P2sypE=
+
+form-data@~2.3.2:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
+  integrity sha512-1lLKB2Mu3aGP1Q/2eCOx0fNbRMe7XdwktwOruhfqqd0rIJWwN4Dh+E3hrPSlDCXnSR7UtZ1N38rVXm+6+MEhJQ==
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.6"
+    mime-types "^2.1.12"
+
+forwarded@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
+  integrity sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=
+
+fragment-cache@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/fragment-cache/-/fragment-cache-0.2.1.tgz#4290fad27f13e89be7f33799c6bc5a0abfff0d19"
+  integrity sha1-QpD60n8T6Jvn8zeZxrxaCr//DRk=
+  dependencies:
+    map-cache "^0.2.2"
+
+fresh@0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
+  integrity sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=
+
+fs-extra@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-6.0.1.tgz#8abc128f7946e310135ddc93b98bddb410e7a34b"
+  integrity sha512-GnyIkKhhzXZUWFCaJzvyDLEEgDkPfb4/TPvJCJVuS8MWZgoSsErf++QpiAlDnKFcqhRlm+tIOcencCjyJE6ZCA==
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
+fs-minipass@^1.2.5:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.7.tgz#ccff8570841e7fe4265693da88936c55aed7f7c7"
+  integrity sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==
+  dependencies:
+    minipass "^2.6.0"
+
+fs-readdir-recursive@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/fs-readdir-recursive/-/fs-readdir-recursive-0.1.2.tgz#315b4fb8c1ca5b8c47defef319d073dad3568059"
+  integrity sha1-MVtPuMHKW4xH3v7zGdBz2tNWgFk=
+
+fs.realpath@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
+  integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
+
+fsevents@^1.0.0:
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/fsevents/-/fsevents-1.2.9.tgz#3f5ed66583ccd6f400b5a00db6f7e861363e388f"
+  integrity sha512-oeyj2H3EjjonWcFjD5NvZNE9Rqe4UW+nQBU2HNeKw0koVLEFIhtyETyAakeAM3de7Z/SW5kcA+fZUait9EApnw==
+  dependencies:
+    nan "^2.12.1"
+    node-pre-gyp "^0.12.0"
+
+functional-red-black-tree@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/functional-red-black-tree/-/functional-red-black-tree-1.0.1.tgz#1b0ab3bd553b2a0d6399d29c0e3ea0b252078327"
+  integrity sha1-GwqzvVU7Kg1jmdKcDj6gslIHgyc=
+
+gauge@~2.7.3:
+  version "2.7.4"
+  resolved "https://registry.yarnpkg.com/gauge/-/gauge-2.7.4.tgz#2c03405c7538c39d7eb37b317022e325fb018bf7"
+  integrity sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=
+  dependencies:
+    aproba "^1.0.3"
+    console-control-strings "^1.0.0"
+    has-unicode "^2.0.0"
+    object-assign "^4.1.0"
+    signal-exit "^3.0.0"
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+    wide-align "^1.1.0"
+
+gaze@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/gaze/-/gaze-1.1.3.tgz#c441733e13b927ac8c0ff0b4c3b033f28812924a"
+  integrity sha512-BRdNm8hbWzFzWHERTrejLqwHDfS4GibPoq5wjTPIoJHoBtKGPg3xAFfxmM+9ztbXelxcf2hwQcaz1PtmFeue8g==
+  dependencies:
+    globule "^1.0.0"
+
+get-caller-file@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.3.tgz#f978fa4c90d1dfe7ff2d6beda2a515e713bdcf4a"
+  integrity sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==
+
+get-stdin@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
+  integrity sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=
+
+get-stream@^4.0.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-4.1.0.tgz#c1b255575f3dc21d59bfc79cd3d2b46b1c3a54b5"
+  integrity sha512-GMat4EJ5161kIy2HevLlr4luNjBgvmj413KaQA7jt4V8B4RDsfpHk7WQ9GVqfYyyx8OS/L66Kox+rJRNklLK7w==
+  dependencies:
+    pump "^3.0.0"
+
+get-value@^2.0.3, get-value@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/get-value/-/get-value-2.0.6.tgz#dc15ca1c672387ca76bd37ac0a395ba2042a2c28"
+  integrity sha1-3BXKHGcjh8p2vTesCjlbogQqLCg=
+
+getobject@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/getobject/-/getobject-0.1.0.tgz#047a449789fa160d018f5486ed91320b6ec7885c"
+  integrity sha1-BHpEl4n6Fg0Bj1SG7ZEyC27HiFw=
+
+getpass@^0.1.1:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/getpass/-/getpass-0.1.7.tgz#5eff8e3e684d569ae4cb2b1282604e8ba62149fa"
+  integrity sha1-Xv+OPmhNVprkyysSgmBOi6YhSfo=
+  dependencies:
+    assert-plus "^1.0.0"
+
+glob-base@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
+  integrity sha1-27Fk9iIbHAscz4Kuoyi0l98Oo8Q=
+  dependencies:
+    glob-parent "^2.0.0"
+    is-glob "^2.0.0"
+
+glob-parent@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-2.0.0.tgz#81383d72db054fcccf5336daa902f182f6edbb28"
+  integrity sha1-gTg9ctsFT8zPUzbaqQLxgvbtuyg=
+  dependencies:
+    is-glob "^2.0.0"
+
+glob@5.x, glob@^5.0.15, glob@~5.0.0:
+  version "5.0.15"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-5.0.15.tgz#1bc936b9e02f4a603fcc222ecf7633d30b8b93b1"
+  integrity sha1-G8k2ueAvSmA/zCIuz3Yz0wuLk7E=
+  dependencies:
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "2 || 3"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@7.1.2:
+  version "7.1.2"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.2.tgz#c19c9df9a028702d678612384a6552404c636d15"
+  integrity sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@^7.1.1, glob@^7.1.2, glob@^7.1.3, glob@~7.1.1:
+  version "7.1.5"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.5.tgz#6714c69bee20f3c3e64c4dd905553e532b40cdc0"
+  integrity sha512-J9dlskqUXK1OeTOYBEn5s8aMukWMwWfs+rPTn/jn50Ux4MNXVhubL1wu/j2t+H4NVI+cXEcCaYellqaPVGXNqQ==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+glob@~7.0.0:
+  version "7.0.6"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.0.6.tgz#211bafaf49e525b8cd93260d14ab136152b3f57a"
+  integrity sha1-IRuvr0nlJbjNkyYNFKsTYVKz9Xo=
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.2"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
+global-modules@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/global-modules/-/global-modules-1.0.0.tgz#6d770f0eb523ac78164d72b5e71a8877265cc3ea"
+  integrity sha512-sKzpEkf11GpOFuw0Zzjzmt4B4UZwjOcG757PPvrfhxcLFbq0wpsgpOqxpxtxFiCG4DtG93M6XRVbF2oGdev7bg==
+  dependencies:
+    global-prefix "^1.0.1"
+    is-windows "^1.0.1"
+    resolve-dir "^1.0.0"
+
+global-prefix@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/global-prefix/-/global-prefix-1.0.2.tgz#dbf743c6c14992593c655568cb66ed32c0122ebe"
+  integrity sha1-2/dDxsFJklk8ZVVoy2btMsASLr4=
+  dependencies:
+    expand-tilde "^2.0.2"
+    homedir-polyfill "^1.0.1"
+    ini "^1.3.4"
+    is-windows "^1.0.1"
+    which "^1.2.14"
+
+globals@^11.0.1:
+  version "11.12.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-11.12.0.tgz#ab8795338868a0babd8525758018c2a7eb95c42e"
+  integrity sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==
+
+globals@^6.4.0:
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-6.4.1.tgz#8498032b3b6d1cc81eebc5f79690d8fe29fabf4f"
+  integrity sha1-hJgDKzttHMge68X3lpDY/in6v08=
+
+globule@^1.0.0:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/globule/-/globule-1.2.1.tgz#5dffb1b191f22d20797a9369b49eab4e9839696d"
+  integrity sha512-g7QtgWF4uYSL5/dn71WxubOrS7JVGCnFPEnoeChJmBnyR9Mw8nGoEwOgJL/RC2Te0WhbsEUCejfH8SZNJ+adYQ==
+  dependencies:
+    glob "~7.1.1"
+    lodash "~4.17.10"
+    minimatch "~3.0.2"
+
+graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.4, graceful-fs@^4.1.6:
+  version "4.2.3"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.3.tgz#4a12ff1b60376ef09862c2093edd908328be8423"
+  integrity sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==
+
+growl@1.10.5:
+  version "1.10.5"
+  resolved "https://registry.yarnpkg.com/growl/-/growl-1.10.5.tgz#f2735dc2283674fa67478b10181059355c369e5e"
+  integrity sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==
+
+grunt-babel@^5.0.0:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/grunt-babel/-/grunt-babel-5.0.3.tgz#86220eb3202efae233a8418a1d7f87b60adee323"
+  integrity sha1-hiIOsyAu+uIzqEGKHX+Htgre4yM=
+  dependencies:
+    babel-core "^5.0.0"
+
+grunt-bg-shell@^2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/grunt-bg-shell/-/grunt-bg-shell-2.3.3.tgz#139ae8f9c76f68a0db4ee9dbbd4ec825b9227fff"
+  integrity sha1-E5ro+cdvaKDbTunbvU7IJbkif/8=
+
+grunt-cli@^1:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/grunt-cli/-/grunt-cli-1.3.2.tgz#60f12d12c1b5aae94ae3469c6b5fe24e960014e8"
+  integrity sha512-8OHDiZZkcptxVXtMfDxJvmN7MVJNE8L/yIcPb4HB7TlyFD1kDvjHrb62uhySsU14wJx9ORMnTuhRMQ40lH/orQ==
+  dependencies:
+    grunt-known-options "~1.1.0"
+    interpret "~1.1.0"
+    liftoff "~2.5.0"
+    nopt "~4.0.1"
+    v8flags "~3.1.1"
+
+grunt-cli@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/grunt-cli/-/grunt-cli-1.2.0.tgz#562b119ebb069ddb464ace2845501be97b35b6a8"
+  integrity sha1-VisRnrsGndtGSs4oRVAb6Xs1tqg=
+  dependencies:
+    findup-sync "~0.3.0"
+    grunt-known-options "~1.1.0"
+    nopt "~3.0.6"
+    resolve "~1.1.0"
+
+grunt-contrib-clean@^1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-clean/-/grunt-contrib-clean-1.1.0.tgz#564abf2d0378a983a15b9e3f30ee75b738c40638"
+  integrity sha1-Vkq/LQN4qYOhW54/MO51tzjEBjg=
+  dependencies:
+    async "^1.5.2"
+    rimraf "^2.5.1"
+
+grunt-contrib-concat@^1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-concat/-/grunt-contrib-concat-1.0.1.tgz#61509863084e871d7e86de48c015259ed97745bd"
+  integrity sha1-YVCYYwhOhx1+ht5IwBUlntl3Rb0=
+  dependencies:
+    chalk "^1.0.0"
+    source-map "^0.5.3"
+
+grunt-contrib-connect@^1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-connect/-/grunt-contrib-connect-1.0.2.tgz#5cf933b91a67386044273c0b2444603cd98879ba"
+  integrity sha1-XPkzuRpnOGBEJzwLJERgPNmIebo=
+  dependencies:
+    async "^1.5.2"
+    connect "^3.4.0"
+    connect-livereload "^0.5.0"
+    http2 "^3.3.4"
+    morgan "^1.6.1"
+    opn "^4.0.0"
+    portscanner "^1.0.0"
+    serve-index "^1.7.1"
+    serve-static "^1.10.0"
+
+grunt-contrib-copy@^1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-copy/-/grunt-contrib-copy-1.0.0.tgz#7060c6581e904b8ab0d00f076e0a8f6e3e7c3573"
+  integrity sha1-cGDGWB6QS4qw0A8HbgqPbj58NXM=
+  dependencies:
+    chalk "^1.1.1"
+    file-sync-cmp "^0.1.0"
+
+grunt-contrib-requirejs@^1:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-requirejs/-/grunt-contrib-requirejs-1.0.0.tgz#ec1670cafc32713902ee53569454715b2e3cbad5"
+  integrity sha1-7BZwyvwycTkC7lNWlFRxWy48utU=
+  dependencies:
+    requirejs "^2.1.0"
+
+grunt-contrib-uglify@^1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-uglify/-/grunt-contrib-uglify-1.0.2.tgz#ae67a46f9153edd4cb11813a55eb69c70d7db2fb"
+  integrity sha1-rmekb5FT7dTLEYE6Vetpxw19svs=
+  dependencies:
+    chalk "^1.0.0"
+    lodash "^4.0.1"
+    maxmin "^1.1.0"
+    uglify-js "~2.6.2"
+    uri-path "^1.0.0"
+
+grunt-contrib-watch@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/grunt-contrib-watch/-/grunt-contrib-watch-1.1.0.tgz#c143ca5b824b288a024b856639a5345aedb78ed4"
+  integrity sha512-yGweN+0DW5yM+oo58fRu/XIRrPcn3r4tQx+nL7eMRwjpvk+rQY6R8o94BPK0i2UhTg9FN21hS+m8vR8v9vXfeg==
+  dependencies:
+    async "^2.6.0"
+    gaze "^1.1.0"
+    lodash "^4.17.10"
+    tiny-lr "^1.1.1"
+
+grunt-eslint@^20.1.0:
+  version "20.2.0"
+  resolved "https://registry.yarnpkg.com/grunt-eslint/-/grunt-eslint-20.2.0.tgz#beeda46fa9b84e00863742aa4bcc84846cd27bca"
+  integrity sha512-XPrN3lyFwiTdQWpblZqvKvKtk74aZNs/6tUdKZqSCl/YNq+iaoE477w7I/082OwTSjyXi4ylE1P5fhHWuzxu1w==
+  dependencies:
+    chalk "^2.1.0"
+    eslint "^4.0.0"
+
+grunt-known-options@~1.1.0:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/grunt-known-options/-/grunt-known-options-1.1.1.tgz#6cc088107bd0219dc5d3e57d91923f469059804d"
+  integrity sha512-cHwsLqoighpu7TuYj5RonnEuxGVFnztcUqTqp5rXFGYL4OuPFofwC4Ycg7n9fYwvK6F5WbYgeVOwph9Crs2fsQ==
+
+grunt-legacy-log-utils@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/grunt-legacy-log-utils/-/grunt-legacy-log-utils-2.0.1.tgz#d2f442c7c0150065d9004b08fd7410d37519194e"
+  integrity sha512-o7uHyO/J+i2tXG8r2bZNlVk20vlIFJ9IEYyHMCQGfWYru8Jv3wTqKZzvV30YW9rWEjq0eP3cflQ1qWojIe9VFA==
+  dependencies:
+    chalk "~2.4.1"
+    lodash "~4.17.10"
+
+grunt-legacy-log@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/grunt-legacy-log/-/grunt-legacy-log-2.0.0.tgz#c8cd2c6c81a4465b9bbf2d874d963fef7a59ffb9"
+  integrity sha512-1m3+5QvDYfR1ltr8hjiaiNjddxGdQWcH0rw1iKKiQnF0+xtgTazirSTGu68RchPyh1OBng1bBUjLmX8q9NpoCw==
+  dependencies:
+    colors "~1.1.2"
+    grunt-legacy-log-utils "~2.0.0"
+    hooker "~0.2.3"
+    lodash "~4.17.5"
+
+grunt-legacy-util@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/grunt-legacy-util/-/grunt-legacy-util-1.1.1.tgz#e10624e7c86034e5b870c8a8616743f0a0845e42"
+  integrity sha512-9zyA29w/fBe6BIfjGENndwoe1Uy31BIXxTH3s8mga0Z5Bz2Sp4UCjkeyv2tI449ymkx3x26B+46FV4fXEddl5A==
+  dependencies:
+    async "~1.5.2"
+    exit "~0.1.1"
+    getobject "~0.1.0"
+    hooker "~0.2.3"
+    lodash "~4.17.10"
+    underscore.string "~3.3.4"
+    which "~1.3.0"
+
+grunt-webpack@^1.0.8:
+  version "1.0.18"
+  resolved "https://registry.yarnpkg.com/grunt-webpack/-/grunt-webpack-1.0.18.tgz#ff26c43ff35bae6cca707a93c4bcdd950a3ecbb7"
+  integrity sha1-/ybEP/NbrmzKcHqTxLzdlQo+y7c=
+  dependencies:
+    lodash "^4.7.0"
+
+grunt@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/grunt/-/grunt-1.0.4.tgz#c799883945a53a3d07622e0737c8f70bfe19eb38"
+  integrity sha512-PYsMOrOC+MsdGEkFVwMaMyc6Ob7pKmq+deg1Sjr+vvMWp35sztfwKE7qoN51V+UEtHsyNuMcGdgMLFkBHvMxHQ==
+  dependencies:
+    coffeescript "~1.10.0"
+    dateformat "~1.0.12"
+    eventemitter2 "~0.4.13"
+    exit "~0.1.1"
+    findup-sync "~0.3.0"
+    glob "~7.0.0"
+    grunt-cli "~1.2.0"
+    grunt-known-options "~1.1.0"
+    grunt-legacy-log "~2.0.0"
+    grunt-legacy-util "~1.1.1"
+    iconv-lite "~0.4.13"
+    js-yaml "~3.13.0"
+    minimatch "~3.0.2"
+    mkdirp "~0.5.1"
+    nopt "~3.0.6"
+    path-is-absolute "~1.0.0"
+    rimraf "~2.6.2"
+
+gzip-size@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/gzip-size/-/gzip-size-1.0.0.tgz#66cf8b101047227b95bace6ea1da0c177ed5c22f"
+  integrity sha1-Zs+LEBBHInuVus5uodoMF37Vwi8=
+  dependencies:
+    browserify-zlib "^0.1.4"
+    concat-stream "^1.4.1"
+
+handlebars@^4.0.1:
+  version "4.4.5"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.4.5.tgz#1b1f94f9bfe7379adda86a8b73fb570265a0dddd"
+  integrity sha512-0Ce31oWVB7YidkaTq33ZxEbN+UDxMMgThvCe8ptgQViymL5DPis9uLdTA13MiRPhgvqyxIegugrP97iK3JeBHg==
+  dependencies:
+    neo-async "^2.6.0"
+    optimist "^0.6.1"
+    source-map "^0.6.1"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
+har-schema@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
+  integrity sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=
+
+har-validator@~5.1.0:
+  version "5.1.3"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.3.tgz#1ef89ebd3e4996557675eed9893110dc350fa080"
+  integrity sha512-sNvOCzEQNr/qrvJgc3UG/kD4QtlHycrzwS+6mfTrrSq97BvaYcPZZI1ZSqGSPR73Cxn4LKTD4PttRwfU7jWq5g==
+  dependencies:
+    ajv "^6.5.5"
+    har-schema "^2.0.0"
+
+has-ansi@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/has-ansi/-/has-ansi-2.0.0.tgz#34f5049ce1ecdf2b0649af3ef24e45ed35416d91"
+  integrity sha1-NPUEnOHs3ysGSa8+8k5F7TVBbZE=
+  dependencies:
+    ansi-regex "^2.0.0"
+
+has-color@~0.1.0:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/has-color/-/has-color-0.1.7.tgz#67144a5260c34fc3cca677d041daf52fe7b78b2f"
+  integrity sha1-ZxRKUmDDT8PMpnfQQdr1L+e3iy8=
+
+has-flag@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-1.0.0.tgz#9d9e793165ce017a00f00418c43f942a7b1d11fa"
+  integrity sha1-nZ55MWXOAXoA8AQYxD+UKnsdEfo=
+
+has-flag@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/has-flag/-/has-flag-3.0.0.tgz#b5d454dc2199ae225699f3467e5a07f3b955bafd"
+  integrity sha1-tdRU3CGZriJWmfNGfloH87lVuv0=
+
+has-unicode@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/has-unicode/-/has-unicode-2.0.1.tgz#e0e6fe6a28cf51138855e086d1691e771de2a8b9"
+  integrity sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=
+
+has-value@^0.3.1:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-0.3.1.tgz#7b1f58bada62ca827ec0a2078025654845995e1f"
+  integrity sha1-ex9YutpiyoJ+wKIHgCVlSEWZXh8=
+  dependencies:
+    get-value "^2.0.3"
+    has-values "^0.1.4"
+    isobject "^2.0.0"
+
+has-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-value/-/has-value-1.0.0.tgz#18b281da585b1c5c51def24c930ed29a0be6b177"
+  integrity sha1-GLKB2lhbHFxR3vJMkw7SmgvmsXc=
+  dependencies:
+    get-value "^2.0.6"
+    has-values "^1.0.0"
+    isobject "^3.0.0"
+
+has-values@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-0.1.4.tgz#6d61de95d91dfca9b9a02089ad384bff8f62b771"
+  integrity sha1-bWHeldkd/Km5oCCJrThL/49it3E=
+
+has-values@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/has-values/-/has-values-1.0.0.tgz#95b0b63fec2146619a6fe57fe75628d5a39efe4f"
+  integrity sha1-lbC2P+whRmGab+V/51Yo1aOe/k8=
+  dependencies:
+    is-number "^3.0.0"
+    kind-of "^4.0.0"
+
+he@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
+  integrity sha1-k0EP0hsAlzUVH4howvJx80J+I/0=
+
+home-or-tmp@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-1.0.0.tgz#4b9f1e40800c3e50c6c27f781676afcce71f3985"
+  integrity sha1-S58eQIAMPlDGwn94FnavzOcfOYU=
+  dependencies:
+    os-tmpdir "^1.0.1"
+    user-home "^1.1.1"
+
+homedir-polyfill@^1.0.1:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/homedir-polyfill/-/homedir-polyfill-1.0.3.tgz#743298cef4e5af3e194161fbadcc2151d3a058e8"
+  integrity sha512-eSmmWE5bZTK2Nou4g0AI3zZ9rswp7GRKoKXS1BLUkvPviOqs4YTN1djQIqrXy9k5gEtdLPy86JjRwsNM9tnDcA==
+  dependencies:
+    parse-passwd "^1.0.0"
+
+hooker@~0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/hooker/-/hooker-0.2.3.tgz#b834f723cc4a242aa65963459df6d984c5d3d959"
+  integrity sha1-uDT3I8xKJCqmWWNFnfbZhMXT2Vk=
+
+hosted-git-info@^2.1.4:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.5.tgz#759cfcf2c4d156ade59b0b2dfabddc42a6b9c70c"
+  integrity sha512-kssjab8CvdXfcXMXVcvsXum4Hwdq9XGtRD3TteMEvEbq0LXyiNQr6AprqKqfeaDXze7SxWvRxdpwE6ku7ikLkg==
+
+http-errors@1.7.2:
+  version "1.7.2"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.2.tgz#4f5029cf13239f31036e5b2e55292bcfbcc85c8f"
+  integrity sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.3"
+    setprototypeof "1.1.1"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.0"
+
+http-errors@~1.6.2:
+  version "1.6.3"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.3.tgz#8b55680bb4be283a0b5bf4ea2e38580be1d9320d"
+  integrity sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.3"
+    setprototypeof "1.1.0"
+    statuses ">= 1.4.0 < 2"
+
+http-errors@~1.7.2:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.3.tgz#6c619e4f9c60308c38519498c14fbb10aacebb06"
+  integrity sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==
+  dependencies:
+    depd "~1.1.2"
+    inherits "2.0.4"
+    setprototypeof "1.1.1"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.0"
+
+"http-parser-js@>=0.4.0 <0.4.11":
+  version "0.4.10"
+  resolved "https://registry.yarnpkg.com/http-parser-js/-/http-parser-js-0.4.10.tgz#92c9c1374c35085f75db359ec56cc257cbb93fa4"
+  integrity sha1-ksnBN0w1CF912zWexWzCV8u5P6Q=
+
+http-proxy-middleware@~0.17.1:
+  version "0.17.4"
+  resolved "https://registry.yarnpkg.com/http-proxy-middleware/-/http-proxy-middleware-0.17.4.tgz#642e8848851d66f09d4f124912846dbaeb41b833"
+  integrity sha1-ZC6ISIUdZvCdTxJJEoRtuutBuDM=
+  dependencies:
+    http-proxy "^1.16.2"
+    is-glob "^3.1.0"
+    lodash "^4.17.2"
+    micromatch "^2.3.11"
+
+http-proxy@^1.16.2:
+  version "1.18.0"
+  resolved "https://registry.yarnpkg.com/http-proxy/-/http-proxy-1.18.0.tgz#dbe55f63e75a347db7f3d99974f2692a314a6a3a"
+  integrity sha512-84I2iJM/n1d4Hdgc6y2+qY5mDaz2PUVjlg9znE9byl+q0uC3DeByqBGReQu5tpLK0TAqTIXScRUV+dg7+bUPpQ==
+  dependencies:
+    eventemitter3 "^4.0.0"
+    follow-redirects "^1.0.0"
+    requires-port "^1.0.0"
+
+http-signature@~1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/http-signature/-/http-signature-1.2.0.tgz#9aecd925114772f3d95b65a60abb8f7c18fbace1"
+  integrity sha1-muzZJRFHcvPZW2WmCruPfBj7rOE=
+  dependencies:
+    assert-plus "^1.0.0"
+    jsprim "^1.2.2"
+    sshpk "^1.7.0"
+
+http2@^3.3.4:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/http2/-/http2-3.3.7.tgz#78396eb1e0bcd1db1f4b138d997c682e23414fbc"
+  integrity sha512-puSi8M8WNlFJm9Pk4c/Mbz9Gwparuj3gO9/RRO5zv6piQ0FY+9Qywp0PdWshYgsMJSalixFY7eC6oPu0zRxLAQ==
+
+https-browserify@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/https-browserify/-/https-browserify-0.0.1.tgz#3f91365cabe60b77ed0ebba24b454e3e09d95a82"
+  integrity sha1-P5E2XKvmC3ftDruiS0VOPgnZWoI=
+
+https-proxy-agent@^2.2.1:
+  version "2.2.3"
+  resolved "https://registry.yarnpkg.com/https-proxy-agent/-/https-proxy-agent-2.2.3.tgz#fb6cd98ed5b9c35056b5a73cd01a8a721d7193d1"
+  integrity sha512-Ytgnz23gm2DVftnzqRRz2dOXZbGd2uiajSw/95bPp6v53zPRspQjLm/AfBgqbJ2qfeRXWIOMVLpp86+/5yX39Q==
+  dependencies:
+    agent-base "^4.3.0"
+    debug "^3.1.0"
+
+iconv-lite@0.4.24, iconv-lite@^0.4.17, iconv-lite@^0.4.4, iconv-lite@^0.4.5, iconv-lite@~0.4.13:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
+  integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
+
+ieee754@1.1.13, ieee754@^1.1.4:
+  version "1.1.13"
+  resolved "https://registry.yarnpkg.com/ieee754/-/ieee754-1.1.13.tgz#ec168558e95aa181fd87d37f55c32bbcb6708b84"
+  integrity sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==
+
+ignore-walk@^3.0.1:
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/ignore-walk/-/ignore-walk-3.0.3.tgz#017e2447184bfeade7c238e4aefdd1e8f95b1e37"
+  integrity sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==
+  dependencies:
+    minimatch "^3.0.4"
+
+ignore@^3.3.3:
+  version "3.3.10"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-3.3.10.tgz#0a97fb876986e8081c631160f8f9f389157f0043"
+  integrity sha512-Pgs951kaMm5GXP7MOvxERINe3gsaVjUWFm+UZPSq9xYriQAksyhg0csnS0KXSNRD5NmNdapXEpjxG49+AKh/ug==
+
+imurmurhash@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/imurmurhash/-/imurmurhash-0.1.4.tgz#9218b9b2b928a238b13dc4fb6b6d576f231453ea"
+  integrity sha1-khi5srkoojixPcT7a21XbyMUU+o=
+
+indent-string@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
+  integrity sha1-ji1INIdCEhtKghi3oTfppSBJ3IA=
+  dependencies:
+    repeating "^2.0.0"
+
+indexof@0.0.1:
+  version "0.0.1"
+  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
+  integrity sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=
+
+inflight@^1.0.4:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
+  integrity sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=
+  dependencies:
+    once "^1.3.0"
+    wrappy "1"
+
+inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3, inherits@~2.0.1, inherits@~2.0.3:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
+  integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
+
+inherits@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.1.tgz#b17d08d326b4423e568eff719f91b0b1cbdf69f1"
+  integrity sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=
+
+inherits@2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
+  integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
+
+ini@^1.3.4, ini@~1.3.0:
+  version "1.3.5"
+  resolved "https://registry.yarnpkg.com/ini/-/ini-1.3.5.tgz#eee25f56db1c9ec6085e0c22778083f596abf927"
+  integrity sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==
+
+inquirer@^3.0.6:
+  version "3.3.0"
+  resolved "https://registry.yarnpkg.com/inquirer/-/inquirer-3.3.0.tgz#9dd2f2ad765dcab1ff0443b491442a20ba227dc9"
+  integrity sha512-h+xtnyk4EwKvFWHrUYsWErEVR+igKtLdchu+o0Z1RL7VU/jVMFbYir2bp6bAj8efFNxWqHX0dIss6fJQ+/+qeQ==
+  dependencies:
+    ansi-escapes "^3.0.0"
+    chalk "^2.0.0"
+    cli-cursor "^2.1.0"
+    cli-width "^2.0.0"
+    external-editor "^2.0.4"
+    figures "^2.0.0"
+    lodash "^4.3.0"
+    mute-stream "0.0.7"
+    run-async "^2.2.0"
+    rx-lite "^4.0.8"
+    rx-lite-aggregates "^4.0.8"
+    string-width "^2.1.0"
+    strip-ansi "^4.0.0"
+    through "^2.3.6"
+
+interpret@^0.6.4:
+  version "0.6.6"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-0.6.6.tgz#fecd7a18e7ce5ca6abfb953e1f86213a49f1625b"
+  integrity sha1-/s16GOfOXKar+5U+H4YhOknxYls=
+
+interpret@~1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/interpret/-/interpret-1.1.0.tgz#7ed1b1410c6a0e0f78cf95d3b8440c63f78b8614"
+  integrity sha1-ftGxQQxqDg94z5XTuEQMY/eLhhQ=
+
+invert-kv@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-1.0.0.tgz#104a8e4aaca6d3d8cd157a8ef8bfab2d7a3ffdb6"
+  integrity sha1-EEqOSqym09jNFXqO+L+rLXo//bY=
+
+invert-kv@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/invert-kv/-/invert-kv-2.0.0.tgz#7393f5afa59ec9ff5f67a27620d11c226e3eec02"
+  integrity sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==
+
+ipaddr.js@1.9.0:
+  version "1.9.0"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.0.tgz#37df74e430a0e47550fe54a2defe30d8acd95f65"
+  integrity sha512-M4Sjn6N/+O6/IXSJseKqHoFc+5FdGJ22sXqnjTpdZweHK64MzEPAyQZyEU3R/KRv2GLoa7nNtg/C2Ev6m7z+eA==
+
+is-absolute@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-absolute/-/is-absolute-1.0.0.tgz#395e1ae84b11f26ad1795e73c17378e48a301576"
+  integrity sha512-dOWoqflvcydARa360Gvv18DZ/gRuHKi2NU/wU5X1ZFzdYfH29nkiNZsF3mp4OJ3H4yo9Mx8A/uAGNzpzPN3yBA==
+  dependencies:
+    is-relative "^1.0.0"
+    is-windows "^1.0.1"
+
+is-accessor-descriptor@^0.1.6:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-0.1.6.tgz#a9e12cb3ae8d876727eeef3843f8a0897b5c98d6"
+  integrity sha1-qeEss66Nh2cn7u84Q/igiXtcmNY=
+  dependencies:
+    kind-of "^3.0.2"
+
+is-accessor-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-accessor-descriptor/-/is-accessor-descriptor-1.0.0.tgz#169c2f6d3df1f992618072365c9b0ea1f6878656"
+  integrity sha512-m5hnHTkcVsPfqx3AKlyttIPb7J+XykHvJP2B9bZDjlhLIoEq4XoK64Vg7boZlVWYK6LUY94dYPEE7Lh0ZkZKcQ==
+  dependencies:
+    kind-of "^6.0.0"
+
+is-arrayish@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-arrayish/-/is-arrayish-0.2.1.tgz#77c99840527aa8ecb1a8ba697b80645a7a926a9d"
+  integrity sha1-d8mYQFJ6qOyxqLppe4BkWnqSap0=
+
+is-binary-path@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-binary-path/-/is-binary-path-1.0.1.tgz#75f16642b480f187a711c814161fd3a4a7655898"
+  integrity sha1-dfFmQrSA8YenEcgUFh/TpKdlWJg=
+  dependencies:
+    binary-extensions "^1.0.0"
+
+is-buffer@^1.1.5:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+  integrity sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==
+
+is-data-descriptor@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-0.1.4.tgz#0b5ee648388e2c860282e793f1856fec3f301b56"
+  integrity sha1-C17mSDiOLIYCgueT8YVv7D8wG1Y=
+  dependencies:
+    kind-of "^3.0.2"
+
+is-data-descriptor@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-data-descriptor/-/is-data-descriptor-1.0.0.tgz#d84876321d0e7add03990406abbbbd36ba9268c7"
+  integrity sha512-jbRXy1FmtAoCjQkVmIVYwuuqDFUbaOeDjmed1tOGPrsMhtJA4rD9tkgA0F1qJ3gRFRXcHYVkdeaP50Q5rE/jLQ==
+  dependencies:
+    kind-of "^6.0.0"
+
+is-descriptor@^0.1.0:
+  version "0.1.6"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-0.1.6.tgz#366d8240dde487ca51823b1ab9f07a10a78251ca"
+  integrity sha512-avDYr0SB3DwO9zsMov0gKCESFYqCnE4hq/4z3TdUlukEy5t9C0YRq7HLrsN52NAcqXKaepeCD0n+B0arnVG3Hg==
+  dependencies:
+    is-accessor-descriptor "^0.1.6"
+    is-data-descriptor "^0.1.4"
+    kind-of "^5.0.0"
+
+is-descriptor@^1.0.0, is-descriptor@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-descriptor/-/is-descriptor-1.0.2.tgz#3b159746a66604b04f8c81524ba365c5f14d86ec"
+  integrity sha512-2eis5WqQGV7peooDyLmNEPUrps9+SXX5c9pL3xEB+4e9HnGuDa7mB7kHxHw4CbqS9k1T2hOH3miL8n8WtiYVtg==
+  dependencies:
+    is-accessor-descriptor "^1.0.0"
+    is-data-descriptor "^1.0.0"
+    kind-of "^6.0.2"
+
+is-dotfile@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/is-dotfile/-/is-dotfile-1.0.3.tgz#a6a2f32ffd2dfb04f5ca25ecd0f6b83cf798a1e1"
+  integrity sha1-pqLzL/0t+wT1yiXs0Pa4PPeYoeE=
+
+is-equal-shallow@^0.1.3:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/is-equal-shallow/-/is-equal-shallow-0.1.3.tgz#2238098fc221de0bcfa5d9eac4c45d638aa1c534"
+  integrity sha1-IjgJj8Ih3gvPpdnqxMRdY4qhxTQ=
+  dependencies:
+    is-primitive "^2.0.0"
+
+is-extendable@^0.1.0, is-extendable@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+  integrity sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik=
+
+is-extendable@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-1.0.1.tgz#a7470f9e426733d81bd81e1155264e3a3507cab4"
+  integrity sha512-arnXMxT1hhoKo9k1LZdmlNyJdDDfy2v0fXjFlmok4+i8ul/6WlbVge9bhM74OpNPQPMGUToDtz+KXa1PneJxOA==
+  dependencies:
+    is-plain-object "^2.0.4"
+
+is-extglob@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-1.0.0.tgz#ac468177c4943405a092fc8f29760c6ffc6206c0"
+  integrity sha1-rEaBd8SUNAWgkvyPKXYMb/xiBsA=
+
+is-extglob@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+  integrity sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=
+
+is-finite@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.0.2.tgz#cc6677695602be550ef11e8b4aa6305342b6d0aa"
+  integrity sha1-zGZ3aVYCvlUO8R6LSqYwU0K20Ko=
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz#ef9e31386f031a7f0d643af82fde50c457ef00cb"
+  integrity sha1-754xOG8DGn8NZDr4L95QxFfvAMs=
+  dependencies:
+    number-is-nan "^1.0.0"
+
+is-fullwidth-code-point@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
+  integrity sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=
+
+is-glob@^2.0.0, is-glob@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-2.0.1.tgz#d096f926a3ded5600f3fdfd91198cb0888c2d863"
+  integrity sha1-0Jb5JqPe1WAPP9/ZEZjLCIjC2GM=
+  dependencies:
+    is-extglob "^1.0.0"
+
+is-glob@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-3.1.0.tgz#7ba5ae24217804ac70707b96922567486cc3e84a"
+  integrity sha1-e6WuJCF4BKxwcHuWkiVnSGzD6Eo=
+  dependencies:
+    is-extglob "^2.1.0"
+
+is-integer@^1.0.4:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/is-integer/-/is-integer-1.0.7.tgz#6bde81aacddf78b659b6629d629cadc51a886d5c"
+  integrity sha1-a96Bqs3feLZZtmKdYpytxRqIbVw=
+  dependencies:
+    is-finite "^1.0.0"
+
+is-number@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-2.1.0.tgz#01fcbbb393463a548f2f466cce16dece49db908f"
+  integrity sha1-Afy7s5NGOlSPL0ZszhbezknbkI8=
+  dependencies:
+    kind-of "^3.0.2"
+
+is-number@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-3.0.0.tgz#24fd6201a4782cf50561c810276afc7d12d71195"
+  integrity sha1-JP1iAaR4LPUFYcgQJ2r8fRLXEZU=
+  dependencies:
+    kind-of "^3.0.2"
+
+is-number@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-4.0.0.tgz#0026e37f5454d73e356dfe6564699867c6a7f0ff"
+  integrity sha512-rSklcAIlf1OmFdyAqbnWTLVelsQ58uvZ66S/ZyawjWqIviTWCjg2PzVGw8WUA+nNuPTqb4wgA+NszrJ+08LlgQ==
+
+is-plain-object@^2.0.3, is-plain-object@^2.0.4:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/is-plain-object/-/is-plain-object-2.0.4.tgz#2c163b3fafb1b606d9d17928f05c2a1c38e07677"
+  integrity sha512-h5PpgXkWitc38BBMYawTYMWJHFZJVnBquFE57xFpjB8pJFiF6gZ+bU+WyI/yqXiFR5mdLsgYNaPe8uao6Uv9Og==
+  dependencies:
+    isobject "^3.0.1"
+
+is-posix-bracket@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+  integrity sha1-MzTceXdDaOkvAW5vvAqI9c1ua8Q=
+
+is-primitive@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
+  integrity sha1-IHurkWOEmcB7Kt8kCkGochADRXU=
+
+is-promise@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
+  integrity sha1-eaKp7OfwlugPNtKy87wWwf9L8/o=
+
+is-relative@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-relative/-/is-relative-1.0.0.tgz#a1bb6935ce8c5dba1e8b9754b9b2dcc020e2260d"
+  integrity sha512-Kw/ReK0iqwKeu0MITLFuj0jbPAmEiOsIwyIXvvbfa6QfmN9pkD1M+8pdk7Rl/dTKbH34/XBFMbgD4iMJhLQbGA==
+  dependencies:
+    is-unc-path "^1.0.0"
+
+is-resolvable@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-resolvable/-/is-resolvable-1.1.0.tgz#fb18f87ce1feb925169c9a407c19318a3206ed88"
+  integrity sha512-qgDYXFSR5WvEfuS5dMj6oTMEbrrSaM0CrFk2Yiq/gXnBvD9pMa2jGXxyhGLfvhZpuMZe18CJpFxAt3CRs42NMg==
+
+is-stream@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+  integrity sha1-EtSj3U5o4Lec6428hBc66A2RykQ=
+
+is-typedarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
+  integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
+
+is-unc-path@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-unc-path/-/is-unc-path-1.0.0.tgz#d731e8898ed090a12c352ad2eaed5095ad322c9d"
+  integrity sha512-mrGpVd0fs7WWLfVsStvgF6iEJnbjDFZh9/emhRDcGWTduTfNHd9CHeUwH3gYIjdbwo4On6hunkztwOaAw0yllQ==
+  dependencies:
+    unc-path-regex "^0.1.2"
+
+is-utf8@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/is-utf8/-/is-utf8-0.2.1.tgz#4b0da1442104d1b336340e80797e865cf39f7d72"
+  integrity sha1-Sw2hRCEE0bM2NA6AeX6GXPOffXI=
+
+is-windows@^1.0.1, is-windows@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/is-windows/-/is-windows-1.0.2.tgz#d1850eb9791ecd18e6182ce12a30f396634bb19d"
+  integrity sha512-eXK1UInq2bPmjyX6e3VHIzMLobc4J94i4AWn+Hpq3OU5KkrRC96OAcR3PRJ/pGu6m8TRnBHP9dkXQVsT/COVIA==
+
+isarray@1.0.0, isarray@^1.0.0, isarray@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/isarray/-/isarray-1.0.0.tgz#bb935d48582cba168c06834957a54a3e07124f11"
+  integrity sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=
+
+isexe@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/isexe/-/isexe-2.0.0.tgz#e8fbf374dc556ff8947a10dcb0572d633f2cfa10"
+  integrity sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=
+
+isobject@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-2.1.0.tgz#f065561096a3f1da2ef46272f815c840d87e0c89"
+  integrity sha1-8GVWEJaj8dou9GJy+BXIQNh+DIk=
+  dependencies:
+    isarray "1.0.0"
+
+isobject@^3.0.0, isobject@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/isobject/-/isobject-3.0.1.tgz#4e431e92b11a9731636aa1f9c8d1ccbcfdab78df"
+  integrity sha1-TkMekrEalzFjaqH5yNHMvP2reN8=
+
+isstream@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/isstream/-/isstream-0.1.2.tgz#47e63f7af55afa6f92e1500e690eb8b8529c099a"
+  integrity sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=
+
+istanbul@kpdecker/istanbul:
+  version "0.4.0"
+  resolved "https://codeload.github.com/kpdecker/istanbul/tar.gz/dd1228d2f0a6e8506cbb5dba398a8297b1dbaf22"
+  dependencies:
+    abbrev "1.0.x"
+    async "1.x"
+    convert-source-map "^1.1.1"
+    escodegen "1.7.x"
+    esprima "2.5.x"
+    fileset "0.2.x"
+    handlebars "^4.0.1"
+    js-yaml "3.x"
+    mkdirp "0.5.x"
+    nopt "3.x"
+    once "1.x"
+    resolve "1.1.x"
+    source-map "^0.4.4"
+    source-map-support "^0.3.2"
+    supports-color "^3.1.0"
+    which "^1.1.1"
+    wordwrap "^1.0.0"
+
+jison-lex@0.3.x:
+  version "0.3.4"
+  resolved "https://registry.yarnpkg.com/jison-lex/-/jison-lex-0.3.4.tgz#81ca28d84f84499dfa8c594dcde3d8a3f26ec7a5"
+  integrity sha1-gcoo2E+ESZ36jFlNzePYo/Jux6U=
+  dependencies:
+    lex-parser "0.1.x"
+    nomnom "1.5.2"
+
+jison@0.4.16:
+  version "0.4.16"
+  resolved "https://registry.yarnpkg.com/jison/-/jison-0.4.16.tgz#1337103f5949f0ed7159399426885ce10cc160b5"
+  integrity sha1-EzcQP1lJ8O1xWTmUJohc4QzBYLU=
+  dependencies:
+    JSONSelect "0.4.0"
+    cjson "0.3.0"
+    ebnf-parser "0.1.10"
+    escodegen "1.3.x"
+    esprima "1.1.x"
+    jison-lex "0.3.x"
+    lex-parser "~0.1.3"
+    nomnom "1.5.2"
+
+jmespath@0.15.0:
+  version "0.15.0"
+  resolved "https://registry.yarnpkg.com/jmespath/-/jmespath-0.15.0.tgz#a3f222a9aae9f966f5d27c796510e28091764217"
+  integrity sha1-o/Iiqarp+Wb10nx5ZRDigJF2Qhc=
+
+js-tokens@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-1.0.1.tgz#cc435a5c8b94ad15acb7983140fc80182c89aeae"
+  integrity sha1-zENaXIuUrRWst5gxQPyAGCyJrq4=
+
+js-tokens@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
+  integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
+
+js-tokens@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+  integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
+
+js-yaml@3.x, js-yaml@^3.13.1, js-yaml@^3.9.1, js-yaml@~3.13.0:
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
+  integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
+jsbn@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
+  integrity sha1-peZUwuWi3rXyAdls77yoDA7y9RM=
+
+jsesc@~0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
+  integrity sha1-597mbjXW/Bb3EP6R1c9p9w8IkR0=
+
+json-schema-traverse@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.3.1.tgz#349a6d44c53a51de89b40805c5d5e59b417d3340"
+  integrity sha1-NJptRMU6Ud6JtAgFxdXlm0F9M0A=
+
+json-schema-traverse@^0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
+  integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
+
+json-schema@0.2.3:
+  version "0.2.3"
+  resolved "https://registry.yarnpkg.com/json-schema/-/json-schema-0.2.3.tgz#b480c892e59a2f05954ce727bd3f2a4e882f9e13"
+  integrity sha1-tIDIkuWaLwWVTOcnvT8qTogvnhM=
+
+json-stable-stringify-without-jsonify@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
+  integrity sha1-nbe1lJatPzz+8wp1FC0tkwrXJlE=
+
+json-stringify-safe@~5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/json-stringify-safe/-/json-stringify-safe-5.0.1.tgz#1296a2d58fd45f19a0f6ce01d65701e2c735b6eb"
+  integrity sha1-Epai1Y/UXxmg9s4B1lcB4sc1tus=
+
+json3@^3.3.2:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/json3/-/json3-3.3.3.tgz#7fc10e375fc5ae42c4705a5cc0aa6f62be305b81"
+  integrity sha512-c7/8mbUsKigAbLkD5B010BK4D9LZm7A1pNItkEwiUZRpIN66exu/e7YQWysGun+TRKaJp8MhemM+VkfWv42aCA==
+
+json5@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.4.0.tgz#054352e4c4c80c86c0923877d449de176a732c8d"
+  integrity sha1-BUNS5MTIDIbAkjh31EneF2pzLI0=
+
+json5@^0.5.0:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
+  integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
+
+jsonfile@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
+  integrity sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
+jsonlint@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/jsonlint/-/jsonlint-1.6.0.tgz#88aa46bc289a7ac93bb46cae2d58a187a9bb494a"
+  integrity sha1-iKpGvCiaesk7tGyuLVihh6m7SUo=
+  dependencies:
+    JSV ">= 4.0.x"
+    nomnom ">= 1.5.x"
+
+jsprim@^1.2.2:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/jsprim/-/jsprim-1.4.1.tgz#313e66bc1e5cc06e438bc1b7499c2e5c56acb6a2"
+  integrity sha1-MT5mvB5cwG5Di8G3SZwuXFastqI=
+  dependencies:
+    assert-plus "1.0.0"
+    extsprintf "1.3.0"
+    json-schema "0.2.3"
+    verror "1.10.0"
+
+kind-of@^3.0.2, kind-of@^3.0.3, kind-of@^3.2.0:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-3.2.2.tgz#31ea21a734bab9bbb0f32466d893aea51e4a3c64"
+  integrity sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-4.0.0.tgz#20813df3d712928b207378691a45066fae72dd57"
+  integrity sha1-IIE989cSkosgc3hpGkUGb65y3Vc=
+  dependencies:
+    is-buffer "^1.1.5"
+
+kind-of@^5.0.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-5.1.0.tgz#729c91e2d857b7a419a1f9aa65685c4c33f5845d"
+  integrity sha512-NGEErnH6F2vUuXDh+OlbcKW7/wOcfdRHaZ7VWtqCztfHri/++YKmP51OdWeGPuqCOba6kk2OTe5d02VmTB80Pw==
+
+kind-of@^6.0.0, kind-of@^6.0.2:
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.2.tgz#01146b36a6218e64e58f3a8d66de5d7fc6f6d051"
+  integrity sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==
+
+lazy-cache@^1.0.3:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
+  integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
+
+lcid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-1.0.0.tgz#308accafa0bc483a3867b4b6f2b9506251d1b835"
+  integrity sha1-MIrMr6C8SDo4Z7S28rlQYlHRuDU=
+  dependencies:
+    invert-kv "^1.0.0"
+
+lcid@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/lcid/-/lcid-2.0.0.tgz#6ef5d2df60e52f82eb228a4c373e8d1f397253cf"
+  integrity sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==
+  dependencies:
+    invert-kv "^2.0.0"
+
+leven@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/leven/-/leven-1.0.2.tgz#9144b6eebca5f1d0680169f1a6770dcea60b75c3"
+  integrity sha1-kUS27ryl8dBoAWnxpncNzqYLdcM=
+
+levn@^0.3.0, levn@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.3.0.tgz#3b09924edf9f083c0490fdd4c0bc4421e04764ee"
+  integrity sha1-OwmSTt+fCDwEkP3UwLxEIeBHZO4=
+  dependencies:
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+
+levn@~0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/levn/-/levn-0.2.5.tgz#ba8d339d0ca4a610e3a3f145b9caf48807155054"
+  integrity sha1-uo0znQykphDjo/FFucr0iAcVUFQ=
+  dependencies:
+    prelude-ls "~1.1.0"
+    type-check "~0.3.1"
+
+lex-parser@0.1.x, lex-parser@~0.1.3:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/lex-parser/-/lex-parser-0.1.4.tgz#64c4f025f17fd53bfb45763faeb16f015a747550"
+  integrity sha1-ZMTwJfF/1Tv7RXY/rrFvAVp0dVA=
+
+liftoff@~2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/liftoff/-/liftoff-2.5.0.tgz#2009291bb31cea861bbf10a7c15a28caf75c31ec"
+  integrity sha1-IAkpG7Mc6oYbvxCnwVooyvdcMew=
+  dependencies:
+    extend "^3.0.0"
+    findup-sync "^2.0.0"
+    fined "^1.0.1"
+    flagged-respawn "^1.0.0"
+    is-plain-object "^2.0.4"
+    object.map "^1.0.0"
+    rechoir "^0.6.2"
+    resolve "^1.1.7"
+
+livereload-js@^2.3.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/livereload-js/-/livereload-js-2.4.0.tgz#447c31cf1ea9ab52fc20db615c5ddf678f78009c"
+  integrity sha512-XPQH8Z2GDP/Hwz2PCDrh2mth4yFejwA1OZ/81Ti3LgKyhDcEjsSsqFWZojHG0va/duGd+WyosY7eXLDoOyqcPw==
+
+load-json-file@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
+  integrity sha1-lWkFcI1YtLq0wiYbBPWfMcmTdMA=
+  dependencies:
+    graceful-fs "^4.1.2"
+    parse-json "^2.2.0"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+    strip-bom "^2.0.0"
+
+loader-utils@^0.2.11, loader-utils@^0.2.9:
+  version "0.2.17"
+  resolved "https://registry.yarnpkg.com/loader-utils/-/loader-utils-0.2.17.tgz#f86e6374d43205a6e6c60e9196f17c0299bfb348"
+  integrity sha1-+G5jdNQyBabmxg6RlvF8Apm/s0g=
+  dependencies:
+    big.js "^3.1.3"
+    emojis-list "^2.0.0"
+    json5 "^0.5.0"
+    object-assign "^4.0.1"
+
+locate-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
+  integrity sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==
+  dependencies:
+    p-locate "^3.0.0"
+    path-exists "^3.0.0"
+
+lodash@^2.4.1:
+  version "2.4.2"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-2.4.2.tgz#fadd834b9683073da179b3eae6d9c0d15053f73e"
+  integrity sha1-+t2DS5aDBz2hebPq5tnA0VBT9z4=
+
+lodash@^3.10.0, lodash@^3.9.3:
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
+  integrity sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=
+
+lodash@^4.0.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.3.0, lodash@^4.7.0, lodash@~4.17.10, lodash@~4.17.5:
+  version "4.17.15"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
+  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
+
+longest@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/longest/-/longest-1.0.1.tgz#30a0b2da38f73770e8294a0d22e6625ed77d0097"
+  integrity sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=
+
+loud-rejection@^1.0.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
+  integrity sha1-W0b4AUft7leIcPCG0Eghz5mOVR8=
+  dependencies:
+    currently-unhandled "^0.4.1"
+    signal-exit "^3.0.0"
+
+lru-cache@^4.0.1:
+  version "4.1.5"
+  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.5.tgz#8bbe50ea85bed59bc9e33dcab8235ee9bcf443cd"
+  integrity sha512-sWZlbEP2OsHNkXrMl5GYk/jKk70MBng6UU4YI/qGDYbgf6YbP4EvmqISbXCoJiRKs+1bSpFHVgQxvJ17F2li5g==
+  dependencies:
+    pseudomap "^1.0.2"
+    yallist "^2.1.2"
+
+make-iterator@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/make-iterator/-/make-iterator-1.0.1.tgz#29b33f312aa8f547c4a5e490f56afcec99133ad6"
+  integrity sha512-pxiuXh0iVEq7VM7KMIhs5gxsfxCux2URptUQaXo4iZZJxBAzTPOLE2BumO5dbfVYq/hBJFBR/a1mFDmOx5AGmw==
+  dependencies:
+    kind-of "^6.0.2"
+
+map-age-cleaner@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/map-age-cleaner/-/map-age-cleaner-0.1.3.tgz#7d583a7306434c055fe474b0f45078e6e1b4b92a"
+  integrity sha512-bJzx6nMoP6PDLPBFmg7+xRKeFZvFboMrGlxmNj9ClvX53KrmvM5bXFXEWjbz4cz1AFn+jWJ9z/DJSz7hrs0w3w==
+  dependencies:
+    p-defer "^1.0.0"
+
+map-cache@^0.2.0, map-cache@^0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/map-cache/-/map-cache-0.2.2.tgz#c32abd0bd6525d9b051645bb4f26ac5dc98a0dbf"
+  integrity sha1-wyq9C9ZSXZsFFkW7TyasXcmKDb8=
+
+map-obj@^1.0.0, map-obj@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/map-obj/-/map-obj-1.0.1.tgz#d933ceb9205d82bdcf4886f6742bdc2b4dea146d"
+  integrity sha1-2TPOuSBdgr3PSIb2dCvcK03qFG0=
+
+map-visit@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/map-visit/-/map-visit-1.0.0.tgz#ecdca8f13144e660f1b5bd41f12f3479d98dfb8f"
+  integrity sha1-7Nyo8TFE5mDxtb1B8S80edmN+48=
+  dependencies:
+    object-visit "^1.0.0"
+
+math-random@^1.0.1:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/math-random/-/math-random-1.0.4.tgz#5dd6943c938548267016d4e34f057583080c514c"
+  integrity sha512-rUxjysqif/BZQH2yhd5Aaq7vXMSx9NdEsQcyA07uEzIvxgI7zIr33gGsh+RU0/XjmQpCW7RsVof1vlkvQVCK5A==
+
+maxmin@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/maxmin/-/maxmin-1.1.0.tgz#71365e84a99dd8f8b3f7d5fde2f00d1e7f73be61"
+  integrity sha1-cTZehKmd2Piz99X94vANHn9zvmE=
+  dependencies:
+    chalk "^1.0.0"
+    figures "^1.0.1"
+    gzip-size "^1.0.0"
+    pretty-bytes "^1.0.0"
+
+media-typer@0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
+  integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
+
+mem@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/mem/-/mem-4.3.0.tgz#461af497bc4ae09608cdb2e60eefb69bff744178"
+  integrity sha512-qX2bG48pTqYRVmDB37rn/6PT7LcR8T7oAX3bf99u1Tt1nzxYfxkgqDwUwolPlXweM0XzBOBFzSx4kfp7KP1s/w==
+  dependencies:
+    map-age-cleaner "^0.1.1"
+    mimic-fn "^2.0.0"
+    p-is-promise "^2.0.0"
+
+memory-fs@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.2.0.tgz#f2bb25368bc121e391c2520de92969caee0a0290"
+  integrity sha1-8rslNovBIeORwlIN6Slpyu4KApA=
+
+memory-fs@~0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.3.0.tgz#7bcc6b629e3a43e871d7e29aca6ae8a7f15cbb20"
+  integrity sha1-e8xrYp46Q+hx1+Kaymrop/FcuyA=
+  dependencies:
+    errno "^0.1.3"
+    readable-stream "^2.0.1"
+
+memory-fs@~0.4.1:
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
+  integrity sha1-OpoguEYlI+RHz7x+i7gO1me/xVI=
+  dependencies:
+    errno "^0.1.3"
+    readable-stream "^2.0.1"
+
+meow@^3.1.0, meow@^3.3.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
+  integrity sha1-cstmi0JSKCkKu/qFaJJYcwioAfs=
+  dependencies:
+    camelcase-keys "^2.0.0"
+    decamelize "^1.1.2"
+    loud-rejection "^1.0.0"
+    map-obj "^1.0.1"
+    minimist "^1.1.3"
+    normalize-package-data "^2.3.4"
+    object-assign "^4.0.1"
+    read-pkg-up "^1.0.1"
+    redent "^1.0.0"
+    trim-newlines "^1.0.0"
+
+merge-descriptors@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
+  integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
+
+methods@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
+  integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
+
+micromatch@^2.1.5, micromatch@^2.3.11:
+  version "2.3.11"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
+  integrity sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=
+  dependencies:
+    arr-diff "^2.0.0"
+    array-unique "^0.2.1"
+    braces "^1.8.2"
+    expand-brackets "^0.1.4"
+    extglob "^0.3.1"
+    filename-regex "^2.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.1"
+    kind-of "^3.0.2"
+    normalize-path "^2.0.1"
+    object.omit "^2.0.0"
+    parse-glob "^3.0.4"
+    regex-cache "^0.4.2"
+
+micromatch@^3.0.4, micromatch@^3.1.10:
+  version "3.1.10"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
+  integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    braces "^2.3.1"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    extglob "^2.0.4"
+    fragment-cache "^0.2.1"
+    kind-of "^6.0.2"
+    nanomatch "^1.2.9"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.2"
+
+mime-db@1.40.0:
+  version "1.40.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.40.0.tgz#a65057e998db090f732a68f6c276d387d4126c32"
+  integrity sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==
+
+"mime-db@>= 1.40.0 < 2":
+  version "1.42.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.42.0.tgz#3e252907b4c7adb906597b4b65636272cf9e7bac"
+  integrity sha512-UbfJCR4UAVRNgMpfImz05smAXK7+c+ZntjaA26ANtkXLlOe947Aag5zdIcKQULAiF9Cq4WxBi9jUs5zkA84bYQ==
+
+mime-types@^2.1.12, mime-types@~2.1.17, mime-types@~2.1.19, mime-types@~2.1.24:
+  version "2.1.24"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.24.tgz#b6f8d0b3e951efb77dedeca194cff6d16f676f81"
+  integrity sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==
+  dependencies:
+    mime-db "1.40.0"
+
+mime@1.6.0, mime@^1.5.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
+
+mimic-fn@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
+  integrity sha512-jf84uxzwiuiIVKiOLpfYk7N46TSy8ubTonmneY9vrpHNAnp0QBt2BxWV9dO3/j+BoVAb+a5G6YDPW3M5HOdMWQ==
+
+mimic-fn@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
+  integrity sha512-OqbOk5oEQeAZ8WXWydlu9HJjz9WVdEIvamMCcXmuqUYjTknH/sqsWvhQ3vgwKFRR1HpjvNBKQ37nbJgYzGqGcg==
+
+"minimatch@2 || 3", minimatch@3.0.4, minimatch@^3.0.2, minimatch@^3.0.4, minimatch@~3.0.2:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
+  integrity sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==
+  dependencies:
+    brace-expansion "^1.1.7"
+
+minimatch@2.x, minimatch@^2.0.3:
+  version "2.0.10"
+  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-2.0.10.tgz#8d087c39c6b38c001b97fca7ce6d0e1e80afbac7"
+  integrity sha1-jQh8OcazjAAbl/ynzm0OHoCvusc=
+  dependencies:
+    brace-expansion "^1.0.0"
+
+minimist@0.0.8:
+  version "0.0.8"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
+  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
+
+minimist@^1.1.0, minimist@^1.1.3, minimist@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
+  integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
+
+minimist@~0.0.1:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
+  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+
+minipass@^2.6.0, minipass@^2.8.6, minipass@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
+  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
+  dependencies:
+    safe-buffer "^5.1.2"
+    yallist "^3.0.0"
+
+minizlib@^1.2.1:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
+  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
+  dependencies:
+    minipass "^2.9.0"
+
+mixin-deep@^1.2.0:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.2.tgz#1120b43dc359a785dce65b55b82e257ccf479566"
+  integrity sha512-WRoDn//mXBiJ1H40rqa3vH0toePwSsGb45iInWlTySa+Uu4k3tYUSxa2v1KqAiLtvlrSzaExqS1gtk96A9zvEA==
+  dependencies:
+    for-in "^1.0.2"
+    is-extendable "^1.0.1"
+
+mkdirp@0.5.1, mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.0, mkdirp@~0.5.1:
+  version "0.5.1"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
+  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
+  dependencies:
+    minimist "0.0.8"
+
+mocha@^5:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-5.2.0.tgz#6d8ae508f59167f940f2b5b3c4a612ae50c90ae6"
+  integrity sha512-2IUgKDhc3J7Uug+FxMXuqIyYzH7gJjXECKe/w43IGgQHTSj3InJi+yAA7T24L9bQMRKiUEHxEX37G5JpVUGLcQ==
+  dependencies:
+    browser-stdout "1.3.1"
+    commander "2.15.1"
+    debug "3.1.0"
+    diff "3.5.0"
+    escape-string-regexp "1.0.5"
+    glob "7.1.2"
+    growl "1.10.5"
+    he "1.1.1"
+    minimatch "3.0.4"
+    mkdirp "0.5.1"
+    supports-color "5.4.0"
+
+mock-stdin@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/mock-stdin/-/mock-stdin-0.3.1.tgz#c657d9642d90786435c64ca5e99bbd4d09bd7dd3"
+  integrity sha1-xlfZZC2QeGQ1xkyl6Zu9TQm9fdM=
+
+morgan@^1.6.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.9.1.tgz#0a8d16734a1d9afbc824b99df87e738e58e2da59"
+  integrity sha512-HQStPIV4y3afTiCYVxirakhlCfGkI161c76kKFca7Fk1JusM//Qeo1ej2XaMniiNeaZklMVrh3vTtIzpzwbpmA==
+  dependencies:
+    basic-auth "~2.0.0"
+    debug "2.6.9"
+    depd "~1.1.2"
+    on-finished "~2.3.0"
+    on-headers "~1.0.1"
+
+ms@2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
+  integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
+
+ms@2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
+  integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
+
+ms@^2.1.1:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
+  integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
+
+mustache@^2.1.3:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/mustache/-/mustache-2.3.2.tgz#a6d4d9c3f91d13359ab889a812954f9230a3d0c5"
+  integrity sha512-KpMNwdQsYz3O/SBS1qJ/o3sqUJ5wSb8gb0pul8CO0S56b9Y2ALm8zCfsjPXsqGFfoNBkDwZuZIAjhsZI03gYVQ==
+
+mute-stream@0.0.7:
+  version "0.0.7"
+  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
+  integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
+
+nan@^2.12.1:
+  version "2.14.0"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
+  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
+
+nanomatch@^1.2.9:
+  version "1.2.13"
+  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
+  integrity sha512-fpoe2T0RbHwBTBUOftAfBPaDEi06ufaUai0mE6Yn1kacc3SnTErfb/h+X94VXzI64rKFHYImXSvdwGGCmwOqCA==
+  dependencies:
+    arr-diff "^4.0.0"
+    array-unique "^0.3.2"
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    fragment-cache "^0.2.1"
+    is-windows "^1.0.2"
+    kind-of "^6.0.2"
+    object.pick "^1.3.0"
+    regex-not "^1.0.0"
+    snapdragon "^0.8.1"
+    to-regex "^3.0.1"
+
+natural-compare@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
+  integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
+
+needle@^2.2.1:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/needle/-/needle-2.4.0.tgz#6833e74975c444642590e15a750288c5f939b57c"
+  integrity sha512-4Hnwzr3mi5L97hMYeNl8wRW/Onhy4nUKR/lVemJ8gJedxxUyBLm9kkrDColJvoSfwi0jCNhD+xCdOtiGDQiRZg==
+  dependencies:
+    debug "^3.2.6"
+    iconv-lite "^0.4.4"
+    sax "^1.2.4"
+
+negotiator@0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
+  integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
+
+neo-async@^2.6.0:
+  version "2.6.1"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.1.tgz#ac27ada66167fa8849a6addd837f6b189ad2081c"
+  integrity sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw==
+
+nice-try@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
+  integrity sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==
+
+node-libs-browser@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/node-libs-browser/-/node-libs-browser-0.7.0.tgz#3e272c0819e308935e26674408d7af0e1491b83b"
+  integrity sha1-PicsCBnjCJNeJmdECNevDhSRuDs=
+  dependencies:
+    assert "^1.1.1"
+    browserify-zlib "^0.1.4"
+    buffer "^4.9.0"
+    console-browserify "^1.1.0"
+    constants-browserify "^1.0.0"
+    crypto-browserify "3.3.0"
+    domain-browser "^1.1.1"
+    events "^1.0.0"
+    https-browserify "0.0.1"
+    os-browserify "^0.2.0"
+    path-browserify "0.0.0"
+    process "^0.11.0"
+    punycode "^1.2.4"
+    querystring-es3 "^0.2.0"
+    readable-stream "^2.0.5"
+    stream-browserify "^2.0.1"
+    stream-http "^2.3.1"
+    string_decoder "^0.10.25"
+    timers-browserify "^2.0.2"
+    tty-browserify "0.0.0"
+    url "^0.11.0"
+    util "^0.10.3"
+    vm-browserify "0.0.4"
+
+node-pre-gyp@^0.12.0:
+  version "0.12.0"
+  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.12.0.tgz#39ba4bb1439da030295f899e3b520b7785766149"
+  integrity sha512-4KghwV8vH5k+g2ylT+sLTjy5wmUOb9vPhnM8NHvRf9dHmnW/CndrFXy2aRPaPST6dugXSdHXfeaHQm77PIz/1A==
+  dependencies:
+    detect-libc "^1.0.2"
+    mkdirp "^0.5.1"
+    needle "^2.2.1"
+    nopt "^4.0.1"
+    npm-packlist "^1.1.6"
+    npmlog "^4.0.2"
+    rc "^1.2.7"
+    rimraf "^2.6.1"
+    semver "^5.3.0"
+    tar "^4"
+
+nomnom@1.5.2:
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/nomnom/-/nomnom-1.5.2.tgz#f4345448a853cfbd5c0d26320f2477ab0526fe2f"
+  integrity sha1-9DRUSKhTz71cDSYyDyR3qwUm/i8=
+  dependencies:
+    colors "0.5.x"
+    underscore "1.1.x"
+
+"nomnom@>= 1.5.x":
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/nomnom/-/nomnom-1.8.1.tgz#2151f722472ba79e50a76fc125bb8c8f2e4dc2a7"
+  integrity sha1-IVH3Ikcrp55Qp2/BJbuMjy5Nwqc=
+  dependencies:
+    chalk "~0.4.0"
+    underscore "~1.6.0"
+
+nopt@3.x, nopt@~3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-3.0.6.tgz#c6465dbf08abcd4db359317f79ac68a646b28ff9"
+  integrity sha1-xkZdvwirzU2zWTF/eaxopkayj/k=
+  dependencies:
+    abbrev "1"
+
+nopt@^4.0.1, nopt@~4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/nopt/-/nopt-4.0.1.tgz#d0d4685afd5415193c8c7505602d0d17cd64474d"
+  integrity sha1-0NRoWv1UFRk8jHUFYC0NF81kR00=
+  dependencies:
+    abbrev "1"
+    osenv "^0.1.4"
+
+normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/normalize-package-data/-/normalize-package-data-2.5.0.tgz#e66db1838b200c1dfc233225d12cb36520e234a8"
+  integrity sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==
+  dependencies:
+    hosted-git-info "^2.1.4"
+    resolve "^1.10.0"
+    semver "2 || 3 || 4 || 5"
+    validate-npm-package-license "^3.0.1"
+
+normalize-path@^2.0.0, normalize-path@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/normalize-path/-/normalize-path-2.1.1.tgz#1ab28b556e198363a8c1a6f7e6fa20137fe6aed9"
+  integrity sha1-GrKLVW4Zg2Oowab35vogE3/mrtk=
+  dependencies:
+    remove-trailing-separator "^1.0.1"
+
+npm-bundled@^1.0.1:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/npm-bundled/-/npm-bundled-1.0.6.tgz#e7ba9aadcef962bb61248f91721cd932b3fe6bdd"
+  integrity sha512-8/JCaftHwbd//k6y2rEWp6k1wxVfpFzB6t1p825+cUb7Ym2XQfhwIC5KwhrvzZRJu+LtDE585zVaS32+CGtf0g==
+
+npm-packlist@^1.1.6:
+  version "1.4.6"
+  resolved "https://registry.yarnpkg.com/npm-packlist/-/npm-packlist-1.4.6.tgz#53ba3ed11f8523079f1457376dd379ee4ea42ff4"
+  integrity sha512-u65uQdb+qwtGvEJh/DgQgW1Xg7sqeNbmxYyrvlNznaVTjV3E5P6F/EFjM+BVHXl7JJlsdG8A64M0XI8FI/IOlg==
+  dependencies:
+    ignore-walk "^3.0.1"
+    npm-bundled "^1.0.1"
+
+npm-run-path@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/npm-run-path/-/npm-run-path-2.0.2.tgz#35a9232dfa35d7067b4cb2ddf2357b1871536c5f"
+  integrity sha1-NakjLfo11wZ7TLLd8jV7GHFTbF8=
+  dependencies:
+    path-key "^2.0.0"
+
+npmlog@^4.0.2:
+  version "4.1.2"
+  resolved "https://registry.yarnpkg.com/npmlog/-/npmlog-4.1.2.tgz#08a7f2a8bf734604779a9efa4ad5cc717abb954b"
+  integrity sha512-2uUqazuKlTaSI/dC8AzicUck7+IrEaOnN/e0jd3Xtt1KcGpwx30v50mL7oPyr/h9bL3E4aZccVwpwP+5W9Vjkg==
+  dependencies:
+    are-we-there-yet "~1.1.2"
+    console-control-strings "~1.1.0"
+    gauge "~2.7.3"
+    set-blocking "~2.0.0"
+
+number-is-nan@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
+  integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
+
+oauth-sign@~0.9.0:
+  version "0.9.0"
+  resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.9.0.tgz#47a7b016baa68b5fa0ecf3dee08a85c679ac6455"
+  integrity sha512-fexhUFFPTGV8ybAtSIGbV6gOkSv8UtRbDBnAyLQw4QPKkgNlsH2ByPGtMUqdWkos6YCRmAqViwgZrJc/mRDzZQ==
+
+object-assign@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-3.0.0.tgz#9bedd5ca0897949bca47e7ff408062d549f587f2"
+  integrity sha1-m+3VygiXlJvKR+f/QIBi1Un1h/I=
+
+object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+  integrity sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM=
+
+object-copy@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/object-copy/-/object-copy-0.1.0.tgz#7e7d858b781bd7c991a41ba975ed3812754e998c"
+  integrity sha1-fn2Fi3gb18mRpBupde04EnVOmYw=
+  dependencies:
+    copy-descriptor "^0.1.0"
+    define-property "^0.2.5"
+    kind-of "^3.0.3"
+
+object-visit@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object-visit/-/object-visit-1.0.1.tgz#f79c4493af0c5377b59fe39d395e41042dd045bb"
+  integrity sha1-95xEk68MU3e1n+OdOV5BBC3QRbs=
+  dependencies:
+    isobject "^3.0.0"
+
+object.defaults@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/object.defaults/-/object.defaults-1.1.0.tgz#3a7f868334b407dea06da16d88d5cd29e435fecf"
+  integrity sha1-On+GgzS0B96gbaFtiNXNKeQ1/s8=
+  dependencies:
+    array-each "^1.0.1"
+    array-slice "^1.0.0"
+    for-own "^1.0.0"
+    isobject "^3.0.0"
+
+object.map@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/object.map/-/object.map-1.0.1.tgz#cf83e59dc8fcc0ad5f4250e1f78b3b81bd801d37"
+  integrity sha1-z4Plncj8wK1fQlDh94s7gb2AHTc=
+  dependencies:
+    for-own "^1.0.0"
+    make-iterator "^1.0.0"
+
+object.omit@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/object.omit/-/object.omit-2.0.1.tgz#1a9c744829f39dbb858c76ca3579ae2a54ebd1fa"
+  integrity sha1-Gpx0SCnznbuFjHbKNXmuKlTr0fo=
+  dependencies:
+    for-own "^0.1.4"
+    is-extendable "^0.1.1"
+
+object.pick@^1.2.0, object.pick@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/object.pick/-/object.pick-1.3.0.tgz#87a10ac4c1694bd2e1cbf53591a66141fb5dd747"
+  integrity sha1-h6EKxMFpS9Lhy/U1kaZhQftd10c=
+  dependencies:
+    isobject "^3.0.1"
+
+on-finished@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
+  integrity sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=
+  dependencies:
+    ee-first "1.1.1"
+
+on-headers@~1.0.1, on-headers@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.2.tgz#772b0ae6aaa525c399e489adfad90c403eb3c28f"
+  integrity sha512-pZAE+FJLoyITytdqK0U5s+FIpjN0JP3OzFi/u8Rx+EV5/W+JTWGXG8xFzevE7AjBfDqHv/8vL8qQsIhHnqRkrA==
+
+once@1.x, once@^1.3.0, once@^1.3.1, once@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
+  integrity sha1-WDsap3WWHUsROsF9nFC6753Xa9E=
+  dependencies:
+    wrappy "1"
+
+onetime@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/onetime/-/onetime-2.0.1.tgz#067428230fd67443b2794b22bba528b6867962d4"
+  integrity sha1-BnQoIw/WdEOyeUsiu6UotoZ5YtQ=
+  dependencies:
+    mimic-fn "^1.0.0"
+
+open@0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/open/-/open-0.0.5.tgz#42c3e18ec95466b6bf0dc42f3a2945c3f0cad8fc"
+  integrity sha1-QsPhjslUZra/DcQvOilFw/DK2Pw=
+
+opn@^4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/opn/-/opn-4.0.2.tgz#7abc22e644dff63b0a96d5ab7f2790c0f01abc95"
+  integrity sha1-erwi5kTf9jsKltWrfyeQwPAavJU=
+  dependencies:
+    object-assign "^4.0.1"
+    pinkie-promise "^2.0.0"
+
+optimist@^0.6.1, optimist@~0.6.0, optimist@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
+  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
+  dependencies:
+    minimist "~0.0.1"
+    wordwrap "~0.0.2"
+
+optionator@^0.5.0:
+  version "0.5.0"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.5.0.tgz#b75a8995a2d417df25b6e4e3862f50aa88651368"
+  integrity sha1-t1qJlaLUF98ltuTjhi9QqohlE2g=
+  dependencies:
+    deep-is "~0.1.2"
+    fast-levenshtein "~1.0.0"
+    levn "~0.2.5"
+    prelude-ls "~1.1.1"
+    type-check "~0.3.1"
+    wordwrap "~0.0.2"
+
+optionator@^0.8.2:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.2.tgz#364c5e409d3f4d6301d6c0b4c05bba50180aeb64"
+  integrity sha1-NkxeQJ0/TWMB1sC0wFu6UBgK62Q=
+  dependencies:
+    deep-is "~0.1.3"
+    fast-levenshtein "~2.0.4"
+    levn "~0.3.0"
+    prelude-ls "~1.1.2"
+    type-check "~0.3.2"
+    wordwrap "~1.0.0"
+
+original@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
+  integrity sha512-hyBVl6iqqUOJ8FqRe+l/gS8H+kKYjrEndd5Pm1MfBtsEKA038HkkdbAl/72EAXGyonD/PFsvmVG+EvcIpliMBg==
+  dependencies:
+    url-parse "^1.4.3"
+
+os-browserify@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/os-browserify/-/os-browserify-0.2.1.tgz#63fc4ccee5d2d7763d26bbf8601078e6c2e0044f"
+  integrity sha1-Y/xMzuXS13Y9Jrv4YBB45sLgBE8=
+
+os-homedir@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-homedir/-/os-homedir-1.0.2.tgz#ffbc4988336e0e833de0c168c7ef152121aa7fb3"
+  integrity sha1-/7xJiDNuDoM94MFox+8VISGqf7M=
+
+os-locale@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-1.4.0.tgz#20f9f17ae29ed345e8bde583b13d2009803c14d9"
+  integrity sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=
+  dependencies:
+    lcid "^1.0.0"
+
+os-locale@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/os-locale/-/os-locale-3.1.0.tgz#a802a6ee17f24c10483ab9935719cef4ed16bf1a"
+  integrity sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==
+  dependencies:
+    execa "^1.0.0"
+    lcid "^2.0.0"
+    mem "^4.0.0"
+
+os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/os-tmpdir/-/os-tmpdir-1.0.2.tgz#bbe67406c79aa85c5cfec766fe5734555dfa1274"
+  integrity sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=
+
+osenv@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/osenv/-/osenv-0.1.5.tgz#85cdfafaeb28e8677f416e287592b5f3f49ea410"
+  integrity sha512-0CWcCECdMVc2Rw3U5w9ZjqX6ga6ubk1xDVKxtBQPK7wis/0F2r9T6k4ydGYhecl7YUBxBVxhL5oisPsNxAPe2g==
+  dependencies:
+    os-homedir "^1.0.0"
+    os-tmpdir "^1.0.0"
+
+output-file-sync@^1.1.0:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/output-file-sync/-/output-file-sync-1.1.2.tgz#d0a33eefe61a205facb90092e826598d5245ce76"
+  integrity sha1-0KM+7+YaIF+suQCS6CZZjVJFznY=
+  dependencies:
+    graceful-fs "^4.1.4"
+    mkdirp "^0.5.1"
+    object-assign "^4.1.0"
+
+p-defer@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-defer/-/p-defer-1.0.0.tgz#9f6eb182f6c9aa8cd743004a7d4f96b196b0fb0c"
+  integrity sha1-n26xgvbJqozXQwBKfU+WsZaw+ww=
+
+p-finally@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/p-finally/-/p-finally-1.0.0.tgz#3fbcfb15b899a44123b34b6dcc18b724336a2cae"
+  integrity sha1-P7z7FbiZpEEjs0ttzBi3JDNqLK4=
+
+p-is-promise@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/p-is-promise/-/p-is-promise-2.1.0.tgz#918cebaea248a62cf7ffab8e3bca8c5f882fc42e"
+  integrity sha512-Y3W0wlRPK8ZMRbNq97l4M5otioeA5lm1z7bkNkxCka8HSPjR0xRWmpCmc9utiaLP9Jb1eD8BgeIxTW4AIF45Pg==
+
+p-limit@^2.0.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.2.1.tgz#aa07a788cc3151c939b5131f63570f0dd2009537"
+  integrity sha512-85Tk+90UCVWvbDavCLKPOLC9vvY8OwEX/RtKF+/1OADJMVlFfEHOiMTPVyxg7mk/dKa+ipdHm0OUkTvCpMTuwg==
+  dependencies:
+    p-try "^2.0.0"
+
+p-locate@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/p-locate/-/p-locate-3.0.0.tgz#322d69a05c0264b25997d9f40cd8a891ab0064a4"
+  integrity sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==
+  dependencies:
+    p-limit "^2.0.0"
+
+p-try@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
+  integrity sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==
+
+pako@~0.2.0:
+  version "0.2.9"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-0.2.9.tgz#f3f7522f4ef782348da8161bad9ecfd51bf83a75"
+  integrity sha1-8/dSL073gjSNqBYbrZ7P1Rv4OnU=
+
+parse-filepath@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/parse-filepath/-/parse-filepath-1.0.2.tgz#a632127f53aaf3d15876f5872f3ffac763d6c891"
+  integrity sha1-pjISf1Oq89FYdvWHLz/6x2PWyJE=
+  dependencies:
+    is-absolute "^1.0.0"
+    map-cache "^0.2.0"
+    path-root "^0.1.1"
+
+parse-glob@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/parse-glob/-/parse-glob-3.0.4.tgz#b2c376cfb11f35513badd173ef0bb6e3a388391c"
+  integrity sha1-ssN2z7EfNVE7rdFz7wu246OIORw=
+  dependencies:
+    glob-base "^0.3.0"
+    is-dotfile "^1.0.0"
+    is-extglob "^1.0.0"
+    is-glob "^2.0.0"
+
+parse-json@^2.2.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/parse-json/-/parse-json-2.2.0.tgz#f480f40434ef80741f8469099f8dea18f55a4dc9"
+  integrity sha1-9ID0BDTvgHQfhGkJn43qGPVaTck=
+  dependencies:
+    error-ex "^1.2.0"
+
+parse-passwd@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/parse-passwd/-/parse-passwd-1.0.0.tgz#6d5b934a456993b23d37f40a382d6f1666a8e5c6"
+  integrity sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=
+
+parseurl@~1.3.2, parseurl@~1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
+  integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
+
+parsimmon@^1.2.0:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/parsimmon/-/parsimmon-1.13.0.tgz#6e4ef3dbd45ed6ea6808be600ac4b9c8a44228cf"
+  integrity sha512-5UIrOCW+gjbILkjKPgTgmq8LKf8TT3Iy7kN2VD7OtQ81facKn8B4gG1X94jWqXYZsxG2KbJhrv/Yq/5H6BQn7A==
+
+pascalcase@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/pascalcase/-/pascalcase-0.1.1.tgz#b363e55e8006ca6fe21784d2db22bd15d7917f14"
+  integrity sha1-s2PlXoAGym/iF4TS2yK9FdeRfxQ=
+
+path-browserify@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/path-browserify/-/path-browserify-0.0.0.tgz#a0b870729aae214005b7d5032ec2cbbb0fb4451a"
+  integrity sha1-oLhwcpquIUAFt9UDLsLLuw+0RRo=
+
+path-exists@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-1.0.0.tgz#d5a8998eb71ef37a74c34eb0d9eba6e878eea081"
+  integrity sha1-1aiZjrce83p0w06w2eum6HjuoIE=
+
+path-exists@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-2.1.0.tgz#0feb6c64f0fc518d9a754dd5efb62c7022761f4b"
+  integrity sha1-D+tsZPD8UY2adU3V77YscCJ2H0s=
+  dependencies:
+    pinkie-promise "^2.0.0"
+
+path-exists@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/path-exists/-/path-exists-3.0.0.tgz#ce0ebeaa5f78cb18925ea7d810d7b59b010fd515"
+  integrity sha1-zg6+ql94yxiSXqfYENe1mwEP1RU=
+
+path-is-absolute@^1.0.0, path-is-absolute@~1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
+  integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
+
+path-is-inside@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/path-is-inside/-/path-is-inside-1.0.2.tgz#365417dede44430d1c11af61027facf074bdfc53"
+  integrity sha1-NlQX3t5EQw0cEa9hAn+s8HS9/FM=
+
+path-key@^2.0.0, path-key@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/path-key/-/path-key-2.0.1.tgz#411cadb574c5a140d3a4b1910d40d80cc9f40b40"
+  integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
+
+path-parse@^1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
+  integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
+
+path-root-regex@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/path-root-regex/-/path-root-regex-0.1.2.tgz#bfccdc8df5b12dc52c8b43ec38d18d72c04ba96d"
+  integrity sha1-v8zcjfWxLcUsi0PsONGNcsBLqW0=
+
+path-root@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/path-root/-/path-root-0.1.1.tgz#9a4a6814cac1c0cd73360a95f32083c8ea4745b7"
+  integrity sha1-mkpoFMrBwM1zNgqV8yCDyOpHRbc=
+  dependencies:
+    path-root-regex "^0.1.0"
+
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+  integrity sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=
+
+path-type@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-1.1.0.tgz#59c44f7ee491da704da415da5a4070ba4f8fe441"
+  integrity sha1-WcRPfuSR2nBNpBXaWkBwuk+P5EE=
+  dependencies:
+    graceful-fs "^4.1.2"
+    pify "^2.0.0"
+    pinkie-promise "^2.0.0"
+
+pbkdf2-compat@2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pbkdf2-compat/-/pbkdf2-compat-2.0.1.tgz#b6e0c8fa99494d94e0511575802a59a5c142f288"
+  integrity sha1-tuDI+plJTZTgURV1gCpZpcFC8og=
+
+performance-now@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/performance-now/-/performance-now-2.1.0.tgz#6309f4e0e5fa913ec1c69307ae364b4b377c9e7b"
+  integrity sha1-Ywn04OX6kT7BxpMHrjZLSzd8nns=
+
+pify@^2.0.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
+  integrity sha1-7RQaasBDqEnqWISY59yosVMw6Qw=
+
+pinkie-promise@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pinkie-promise/-/pinkie-promise-2.0.1.tgz#2135d6dfa7a358c069ac9b178776288228450ffa"
+  integrity sha1-ITXW36ejWMBprJsXh3YogihFD/o=
+  dependencies:
+    pinkie "^2.0.0"
+
+pinkie@^2.0.0:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/pinkie/-/pinkie-2.0.4.tgz#72556b80cfa0d48a974e80e77248e80ed4f7f870"
+  integrity sha1-clVrgM+g1IqXToDnckjoDtT3+HA=
+
+pluralize@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-7.0.0.tgz#298b89df8b93b0221dbf421ad2b1b1ea23fc6777"
+  integrity sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==
+
+portscanner@^1.0.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/portscanner/-/portscanner-1.2.0.tgz#b14bbda257d14c310fa9cc09682af02d40961802"
+  integrity sha1-sUu9olfRTDEPqcwJaCrwLUCWGAI=
+  dependencies:
+    async "1.5.2"
+
+posix-character-classes@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/posix-character-classes/-/posix-character-classes-0.1.1.tgz#01eac0fe3b5af71a2a6c02feabb8c1fef7e00eab"
+  integrity sha1-AerA/jta9xoqbAL+q7jB/vfgDqs=
+
+prelude-ls@~1.1.0, prelude-ls@~1.1.1, prelude-ls@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
+  integrity sha1-IZMqVJ9eUv/ZqCf1cOBL5iqX2lQ=
+
+preserve@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
+  integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
+
+pretty-bytes@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/pretty-bytes/-/pretty-bytes-1.0.4.tgz#0a22e8210609ad35542f8c8d5d2159aff0751c84"
+  integrity sha1-CiLoIQYJrTVUL4yNXSFZr/B1HIQ=
+  dependencies:
+    get-stdin "^4.0.1"
+    meow "^3.1.0"
+
+private@^0.1.6, private@~0.1.5:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/private/-/private-0.1.8.tgz#2381edb3689f7a53d653190060fcf822d2f368ff"
+  integrity sha512-VvivMrbvd2nKkiG38qjULzlc+4Vx4wm/whI9pQD35YrARNnhxeiRktSOhSukRLFNlzg6Br/cJPet5J/u19r/mg==
+
+process-nextick-args@~2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.1.tgz#7820d9b16120cc55ca9ae7792680ae7dba6d7fe2"
+  integrity sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==
+
+process@^0.11.0:
+  version "0.11.10"
+  resolved "https://registry.yarnpkg.com/process/-/process-0.11.10.tgz#7332300e840161bda3e69a1d1d91a7d4bc16f182"
+  integrity sha1-czIwDoQBYb2j5podHZGn1LwW8YI=
+
+progress@^2.0.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/progress/-/progress-2.0.3.tgz#7e8cf8d8f5b8f239c1bc68beb4eb78567d572ef8"
+  integrity sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==
+
+proxy-addr@~2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.5.tgz#34cbd64a2d81f4b1fd21e76f9f06c8a45299ee34"
+  integrity sha512-t/7RxHXPH6cJtP0pRG6smSr9QJidhB+3kXu0KgXnbGYMgzEnUxRQ4/LDdfOwZEMyIh3/xHb8PX3t+lfL9z+YVQ==
+  dependencies:
+    forwarded "~0.1.2"
+    ipaddr.js "1.9.0"
+
+prr@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/prr/-/prr-1.0.1.tgz#d3fc114ba06995a45ec6893f484ceb1d78f5f476"
+  integrity sha1-0/wRS6BplaRexok/SEzrHXj19HY=
+
+pseudomap@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
+  integrity sha1-8FKijacOYYkX7wqKw0wa5aaChrM=
+
+psl@^1.1.24:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/psl/-/psl-1.4.0.tgz#5dd26156cdb69fa1fdb8ab1991667d3f80ced7c2"
+  integrity sha512-HZzqCGPecFLyoRj5HLfuDSKYTJkAfB5thKBIkRHtGjWwY7p1dAyveIbXIq4tO0KYfDF2tHqPUgY9SDnGm00uFw==
+
+pump@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/pump/-/pump-3.0.0.tgz#b4a2116815bde2f4e1ea602354e8c75565107a64"
+  integrity sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==
+  dependencies:
+    end-of-stream "^1.1.0"
+    once "^1.3.1"
+
+punycode@1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
+  integrity sha1-llOgNvt8HuQjQvIyXM7v6jkmxI0=
+
+punycode@^1.2.4, punycode@^1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
+  integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
+
+punycode@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"
+  integrity sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A==
+
+q@^1.1.2:
+  version "1.5.1"
+  resolved "https://registry.yarnpkg.com/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
+  integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
+
+q@~1.4.1:
+  version "1.4.1"
+  resolved "https://registry.yarnpkg.com/q/-/q-1.4.1.tgz#55705bcd93c5f3673530c2c2cbc0c2b3addc286e"
+  integrity sha1-VXBbzZPF82c1MMLCy8DCs63cKG4=
+
+qs@6.7.0:
+  version "6.7.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
+  integrity sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==
+
+qs@^6.4.0:
+  version "6.9.0"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.9.0.tgz#d1297e2a049c53119cb49cca366adbbacc80b409"
+  integrity sha512-27RP4UotQORTpmNQDX8BHPukOnBP3p1uUJY5UnDhaJB+rMt9iMsok724XL+UHU23bEFOHRMQ2ZhI99qOWUMGFA==
+
+qs@~6.5.2:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+  integrity sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA==
+
+querystring-es3@^0.2.0:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
+  integrity sha1-nsYfeQSYdXB9aUFFlv2Qek1xHnM=
+
+querystring@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
+  integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
+
+querystringify@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
+  integrity sha512-w7fLxIRCRT7U8Qu53jQnJyPkYZIaR4n5151KMfcJlO/A9397Wxb1amJvROTK6TOnp7PfoAmg/qXiNHI+08jRfA==
+
+randomatic@^3.0.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-3.1.1.tgz#b776efc59375984e36c537b2f51a1f0aff0da1ed"
+  integrity sha512-TuDE5KxZ0J461RVjrJZCJc+J+zCkTb1MbH9AQUq68sMhOMcy9jLcb3BrZKgp9q9Ncltdg4QVqWrH02W2EFFVYw==
+  dependencies:
+    is-number "^4.0.0"
+    kind-of "^6.0.0"
+    math-random "^1.0.1"
+
+range-parser@^1.0.3, range-parser@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
+
+raw-body@2.4.0:
+  version "2.4.0"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.0.tgz#a1ce6fb9c9bc356ca52e89256ab59059e13d0332"
+  integrity sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==
+  dependencies:
+    bytes "3.1.0"
+    http-errors "1.7.2"
+    iconv-lite "0.4.24"
+    unpipe "1.0.0"
+
+raw-body@~1.1.0:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-1.1.7.tgz#1d027c2bfa116acc6623bca8f00016572a87d425"
+  integrity sha1-HQJ8K/oRasxmI7yo8AAWVyqH1CU=
+  dependencies:
+    bytes "1"
+    string_decoder "0.10"
+
+rc@^1.2.7:
+  version "1.2.8"
+  resolved "https://registry.yarnpkg.com/rc/-/rc-1.2.8.tgz#cd924bf5200a075b83c188cd6b9e211b7fc0d3ed"
+  integrity sha512-y3bGgqKj3QBdxLbLkomlohkvsA8gdAiUQlSBJnBhfn+BPxg4bc62d8TcBW15wavDfgexCgccckhcZvywyQYPOw==
+  dependencies:
+    deep-extend "^0.6.0"
+    ini "~1.3.0"
+    minimist "^1.2.0"
+    strip-json-comments "~2.0.1"
+
+read-pkg-up@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
+  integrity sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=
+  dependencies:
+    find-up "^1.0.0"
+    read-pkg "^1.0.0"
+
+read-pkg@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/read-pkg/-/read-pkg-1.1.0.tgz#f5ffaa5ecd29cb31c0474bca7d756b6bb29e3f28"
+  integrity sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=
+  dependencies:
+    load-json-file "^1.0.0"
+    normalize-package-data "^2.3.2"
+    path-type "^1.0.0"
+
+readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.5, readable-stream@^2.0.6, readable-stream@^2.2.2, readable-stream@^2.3.6:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  integrity sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.3"
+    isarray "~1.0.0"
+    process-nextick-args "~2.0.0"
+    safe-buffer "~5.1.1"
+    string_decoder "~1.1.1"
+    util-deprecate "~1.0.1"
+
+readdirp@^2.0.0:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/readdirp/-/readdirp-2.2.1.tgz#0e87622a3325aa33e892285caf8b4e846529a525"
+  integrity sha512-1JU/8q+VgFZyxwrJ+SVIOsh+KywWGpds3NTqikiKpDMZWScmAYyKIgqkO+ARvNWJfXeXR1zxz7aHF4u4CyH6vQ==
+  dependencies:
+    graceful-fs "^4.1.11"
+    micromatch "^3.1.10"
+    readable-stream "^2.0.2"
+
+recast@0.10.33:
+  version "0.10.33"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.10.33.tgz#942808f7aa016f1fa7142c461d7e5704aaa8d697"
+  integrity sha1-lCgI96oBbx+nFCxGHX5XBKqo1pc=
+  dependencies:
+    ast-types "0.8.12"
+    esprima-fb "~15001.1001.0-dev-harmony-fb"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
+recast@^0.10.10:
+  version "0.10.43"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.10.43.tgz#b95d50f6d60761a5f6252e15d80678168491ce7f"
+  integrity sha1-uV1Q9tYHYaX2JS4V2AZ4FoSRzn8=
+  dependencies:
+    ast-types "0.8.15"
+    esprima-fb "~15001.1001.0-dev-harmony-fb"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
+recast@^0.11.17:
+  version "0.11.23"
+  resolved "https://registry.yarnpkg.com/recast/-/recast-0.11.23.tgz#451fd3004ab1e4df9b4e4b66376b2a21912462d3"
+  integrity sha1-RR/TAEqx5N+bTktmN2sqIZEkYtM=
+  dependencies:
+    ast-types "0.9.6"
+    esprima "~3.1.0"
+    private "~0.1.5"
+    source-map "~0.5.0"
+
+rechoir@^0.6.2:
+  version "0.6.2"
+  resolved "https://registry.yarnpkg.com/rechoir/-/rechoir-0.6.2.tgz#85204b54dba82d5742e28c96756ef43af50e3384"
+  integrity sha1-hSBLVNuoLVdC4oyWdW70OvUOM4Q=
+  dependencies:
+    resolve "^1.1.6"
+
+redent@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
+  integrity sha1-z5Fqsf1fHxbfsggi3W7H9zDCr94=
+  dependencies:
+    indent-string "^2.1.0"
+    strip-indent "^1.0.1"
+
+regenerate@^1.2.1:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/regenerate/-/regenerate-1.4.0.tgz#4a856ec4b56e4077c557589cae85e7a4c8869a11"
+  integrity sha512-1G6jJVDWrt0rK99kBjvEtziZNCICAuvIPkSiUFIQxVP06RCVpq3dmDo2oi6ABpYaDYaTRr67BEhL8r1wgEZZKg==
+
+regenerator@0.8.40:
+  version "0.8.40"
+  resolved "https://registry.yarnpkg.com/regenerator/-/regenerator-0.8.40.tgz#a0e457c58ebdbae575c9f8cd75127e93756435d8"
+  integrity sha1-oORXxY69uuV1yfjNdRJ+k3VkNdg=
+  dependencies:
+    commoner "~0.10.3"
+    defs "~1.1.0"
+    esprima-fb "~15001.1001.0-dev-harmony-fb"
+    private "~0.1.5"
+    recast "0.10.33"
+    through "~2.3.8"
+
+regex-cache@^0.4.2:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/regex-cache/-/regex-cache-0.4.4.tgz#75bdc58a2a1496cec48a12835bc54c8d562336dd"
+  integrity sha512-nVIZwtCjkC9YgvWkpM55B5rBhBYRZhAaJbgcFYXXsHnbZ9UZI9nnVWYZpBlCqv9ho2eZryPnWrZGsOdPwVWXWQ==
+  dependencies:
+    is-equal-shallow "^0.1.3"
+
+regex-not@^1.0.0, regex-not@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/regex-not/-/regex-not-1.0.2.tgz#1f4ece27e00b0b65e0247a6810e6a85d83a5752c"
+  integrity sha512-J6SDjUgDxQj5NusnOtdFxDwN/+HWykR8GELwctJ7mdqhcyy1xEc4SRFHUXvxTp661YaVKAjfRLZ9cCqS6tn32A==
+  dependencies:
+    extend-shallow "^3.0.2"
+    safe-regex "^1.1.0"
+
+regexpp@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/regexpp/-/regexpp-1.1.0.tgz#0e3516dd0b7904f413d2d4193dce4618c3a689ab"
+  integrity sha512-LOPw8FpgdQF9etWMaAfG/WRthIdXJGYp4mJ2Jgn/2lpkbod9jPn0t9UqN7AxBOKNfzRbYyVfgc7Vk4t/MpnXgw==
+
+regexpu@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/regexpu/-/regexpu-1.3.0.tgz#e534dc991a9e5846050c98de6d7dd4a55c9ea16d"
+  integrity sha1-5TTcmRqeWEYFDJjebX3UpVyeoW0=
+  dependencies:
+    esprima "^2.6.0"
+    recast "^0.10.10"
+    regenerate "^1.2.1"
+    regjsgen "^0.2.0"
+    regjsparser "^0.1.4"
+
+regjsgen@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/regjsgen/-/regjsgen-0.2.0.tgz#6c016adeac554f75823fe37ac05b92d5a4edb1f7"
+  integrity sha1-bAFq3qxVT3WCP+N6wFuS1aTtsfc=
+
+regjsparser@^0.1.4:
+  version "0.1.5"
+  resolved "https://registry.yarnpkg.com/regjsparser/-/regjsparser-0.1.5.tgz#7ee8f84dc6fa792d3fd0ae228d24bd949ead205c"
+  integrity sha1-fuj4Tcb6eS0/0K4ijSS9lJ6tIFw=
+  dependencies:
+    jsesc "~0.5.0"
+
+remove-trailing-separator@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz#c24bce2a283adad5bc3f58e0d48249b92379d8ef"
+  integrity sha1-wkvOKig62tW8P1jg1IJJuSN52O8=
+
+repeat-element@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/repeat-element/-/repeat-element-1.1.3.tgz#782e0d825c0c5a3bb39731f84efee6b742e6b1ce"
+  integrity sha512-ahGq0ZnV5m5XtZLMb+vP76kcAM5nkLqk0lpqAuojSKGgQtn4eRi4ZZGm2olo2zKFH+sMsWaqOCW1dqAnOru72g==
+
+repeat-string@^1.5.2, repeat-string@^1.6.1:
+  version "1.6.1"
+  resolved "https://registry.yarnpkg.com/repeat-string/-/repeat-string-1.6.1.tgz#8dcae470e1c88abc2d600fff4a776286da75e637"
+  integrity sha1-jcrkcOHIirwtYA//Sndihtp15jc=
+
+repeating@^1.1.0, repeating@^1.1.2:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/repeating/-/repeating-1.1.3.tgz#3d4114218877537494f97f77f9785fab810fa4ac"
+  integrity sha1-PUEUIYh3U3SU+X93+Xhfq4EPpKw=
+  dependencies:
+    is-finite "^1.0.0"
+
+repeating@^2.0.0:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/repeating/-/repeating-2.0.1.tgz#5214c53a926d3552707527fbab415dbc08d06dda"
+  integrity sha1-UhTFOpJtNVJwdSf7q0FdvAjQbdo=
+  dependencies:
+    is-finite "^1.0.0"
+
+request@^2.74.x, request@^2.88.0:
+  version "2.88.0"
+  resolved "https://registry.yarnpkg.com/request/-/request-2.88.0.tgz#9c2fca4f7d35b592efe57c7f0a55e81052124fef"
+  integrity sha512-NAqBSrijGLZdM0WZNsInLJpkJokL72XYjUpnB0iwsRgxh7dB6COrHnTBNwN0E+lHDAJzu7kLAkDeY08z2/A0hg==
+  dependencies:
+    aws-sign2 "~0.7.0"
+    aws4 "^1.8.0"
+    caseless "~0.12.0"
+    combined-stream "~1.0.6"
+    extend "~3.0.2"
+    forever-agent "~0.6.1"
+    form-data "~2.3.2"
+    har-validator "~5.1.0"
+    http-signature "~1.2.0"
+    is-typedarray "~1.0.0"
+    isstream "~0.1.2"
+    json-stringify-safe "~5.0.1"
+    mime-types "~2.1.19"
+    oauth-sign "~0.9.0"
+    performance-now "^2.1.0"
+    qs "~6.5.2"
+    safe-buffer "^5.1.2"
+    tough-cookie "~2.4.3"
+    tunnel-agent "^0.6.0"
+    uuid "^3.3.2"
+
+requestretry@~1.9.0:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/requestretry/-/requestretry-1.9.1.tgz#0a2a004eaf211969c4cc2cfebf3fe9e57b92c74e"
+  integrity sha1-CioATq8hGWnEzCz+vz/p5XuSx04=
+  dependencies:
+    extend "^3.0.0"
+    fg-lodash "0.0.2"
+    request "^2.74.x"
+    when "~3.7.5"
+
+require-directory@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
+  integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
+
+require-main-filename@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-1.0.1.tgz#97f717b69d48784f5f526a6c5aa8ffdda055a4d1"
+  integrity sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=
+
+require-uncached@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/require-uncached/-/require-uncached-1.0.3.tgz#4e0d56d6c9662fd31e43011c4b95aa49955421d3"
+  integrity sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=
+  dependencies:
+    caller-path "^0.1.0"
+    resolve-from "^1.0.0"
+
+requirejs@^2.1.0:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/requirejs/-/requirejs-2.3.6.tgz#e5093d9601c2829251258c0b9445d4d19fa9e7c9"
+  integrity sha512-ipEzlWQe6RK3jkzikgCupiTbTvm4S0/CAU5GlgptkN5SO6F3u0UD0K18wy6ErDqiCyP4J4YYe1HuAShvsxePLg==
+
+requires-port@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
+
+resolve-dir@^1.0.0, resolve-dir@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-dir/-/resolve-dir-1.0.1.tgz#79a40644c362be82f26effe739c9bb5382046f43"
+  integrity sha1-eaQGRMNivoLybv/nOcm7U4IEb0M=
+  dependencies:
+    expand-tilde "^2.0.0"
+    global-modules "^1.0.0"
+
+resolve-from@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/resolve-from/-/resolve-from-1.0.1.tgz#26cbfe935d1aeeeabb29bc3fe5aeb01e93d44226"
+  integrity sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=
+
+resolve-url@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/resolve-url/-/resolve-url-0.2.1.tgz#2c637fe77c893afd2a663fe21aa9080068e2052a"
+  integrity sha1-LGN/53yJOv0qZj/iGqkIAGjiBSo=
+
+resolve@1.1.x, resolve@~1.1.0:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.1.7.tgz#203114d82ad2c5ed9e8e0411b3932875e889e97b"
+  integrity sha1-IDEU2CrSxe2ejgQRs5ModeiJ6Xs=
+
+resolve@^1.1.6, resolve@^1.1.7, resolve@^1.10.0, resolve@^1.3.2:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/resolve/-/resolve-1.12.0.tgz#3fc644a35c84a48554609ff26ec52b66fa577df6"
+  integrity sha512-B/dOmuoAik5bKcD6s6nXDCjzUKnaDvdkRyAk6rsmsKLipWj4797iothd7jmmUhWTfinVMU+wc56rYKsit2Qy4w==
+  dependencies:
+    path-parse "^1.0.6"
+
+restore-cursor@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
+  integrity sha1-n37ih/gv0ybU/RYpI9YhKe7g368=
+  dependencies:
+    onetime "^2.0.0"
+    signal-exit "^3.0.2"
+
+ret@~0.1.10:
+  version "0.1.15"
+  resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
+  integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
+
+right-align@^0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
+  integrity sha1-YTObci/mo1FWiSENJOFMlhSGE+8=
+  dependencies:
+    align-text "^0.1.1"
+
+rimraf@^2.5.1, rimraf@^2.6.1:
+  version "2.7.1"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.7.1.tgz#35797f13a7fdadc566142c29d4f07ccad483e3ec"
+  integrity sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==
+  dependencies:
+    glob "^7.1.3"
+
+rimraf@~2.6.2:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
+  integrity sha512-mwqeW5XsA2qAejG46gYdENaxXjx9onRNCfn7L0duuP4hCuTIi/QO7PDK07KJfp1d+izWPrzEJDcSqBa0OZQriA==
+  dependencies:
+    glob "^7.1.3"
+
+ripemd160@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/ripemd160/-/ripemd160-0.2.0.tgz#2bf198bde167cacfa51c0a928e84b68bbe171fce"
+  integrity sha1-K/GYveFnys+lHAqSjoS2i74XH84=
+
+run-async@^2.2.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/run-async/-/run-async-2.3.0.tgz#0371ab4ae0bdd720d4166d7dfda64ff7a445a6c0"
+  integrity sha1-A3GrSuC91yDUFm19/aZP96RFpsA=
+  dependencies:
+    is-promise "^2.1.0"
+
+rx-lite-aggregates@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz#753b87a89a11c95467c4ac1626c4efc4e05c67be"
+  integrity sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=
+  dependencies:
+    rx-lite "*"
+
+rx-lite@*, rx-lite@^4.0.8:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/rx-lite/-/rx-lite-4.0.8.tgz#0b1e11af8bc44836f04a6407e92da42467b79444"
+  integrity sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=
+
+safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+  integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
+
+safe-buffer@>=5.1.0, safe-buffer@^5.0.1, safe-buffer@^5.1.2:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
+  integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
+
+safe-json-parse@~1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/safe-json-parse/-/safe-json-parse-1.0.1.tgz#3e76723e38dfdda13c9b1d29a1e07ffee4b30b57"
+  integrity sha1-PnZyPjjf3aE8mx0poeB//uSzC1c=
+
+safe-regex@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
+  integrity sha1-QKNmnzsHfR6UPURinhV91IAjvy4=
+  dependencies:
+    ret "~0.1.10"
+
+"safer-buffer@>= 2.1.2 < 3", safer-buffer@^2.0.2, safer-buffer@^2.1.0, safer-buffer@~2.1.0:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+  integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
+
+saucelabs@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/saucelabs/-/saucelabs-1.5.0.tgz#9405a73c360d449b232839919a86c396d379fd9d"
+  integrity sha512-jlX3FGdWvYf4Q3LFfFWS1QvPg3IGCGWxIc8QBFdPTbpTJnt/v17FHXYVAn7C8sHf1yUXo2c7yIM0isDryfYtHQ==
+  dependencies:
+    https-proxy-agent "^2.2.1"
+
+sax@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.1.tgz#7b8e656190b228e81a66aea748480d828cd2d37a"
+  integrity sha1-e45lYZCyKOgaZq6nSEgNgozS03o=
+
+sax@>=0.6.0, sax@^1.2.4:
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
+  integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
+
+"semver@2 || 3 || 4 || 5", semver@^5.0.1, semver@^5.3.0, semver@^5.5.0:
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
+  integrity sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==
+
+send@0.17.1:
+  version "0.17.1"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.17.1.tgz#c1d8b059f7900f7466dd4938bdc44e11ddb376c8"
+  integrity sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==
+  dependencies:
+    debug "2.6.9"
+    depd "~1.1.2"
+    destroy "~1.0.4"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "~1.7.2"
+    mime "1.6.0"
+    ms "2.1.1"
+    on-finished "~2.3.0"
+    range-parser "~1.2.1"
+    statuses "~1.5.0"
+
+serve-index@^1.7.1, serve-index@^1.7.2:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.9.1.tgz#d3768d69b1e7d82e5ce050fff5b453bea12a9239"
+  integrity sha1-03aNabHn2C5c4FD/9bRTvqEqkjk=
+  dependencies:
+    accepts "~1.3.4"
+    batch "0.6.1"
+    debug "2.6.9"
+    escape-html "~1.0.3"
+    http-errors "~1.6.2"
+    mime-types "~2.1.17"
+    parseurl "~1.3.2"
+
+serve-static@1.14.1, serve-static@^1.10.0:
+  version "1.14.1"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.1.tgz#666e636dc4f010f7ef29970a88a674320898b2f9"
+  integrity sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==
+  dependencies:
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    parseurl "~1.3.3"
+    send "0.17.1"
+
+set-blocking@^2.0.0, set-blocking@~2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
+  integrity sha1-BF+XgtARrppoA93TgrJDkrPYkPc=
+
+set-value@^2.0.0, set-value@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/set-value/-/set-value-2.0.1.tgz#a18d40530e6f07de4228c7defe4227af8cad005b"
+  integrity sha512-JxHc1weCN68wRY0fhCoXpyK55m/XPHafOmK4UWD7m2CI14GMcFypt4w/0+NV5f/ZMby2F6S2wwA7fgynh9gWSw==
+  dependencies:
+    extend-shallow "^2.0.1"
+    is-extendable "^0.1.1"
+    is-plain-object "^2.0.3"
+    split-string "^3.0.1"
+
+setimmediate@^1.0.4:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+  integrity sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU=
+
+setprototypeof@1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.0.tgz#d0bd85536887b6fe7c0d818cb962d9d91c54e656"
+  integrity sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==
+
+setprototypeof@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.1.1.tgz#7e95acb24aa92f5885e0abef5ba131330d4ae683"
+  integrity sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==
+
+sha.js@2.2.6:
+  version "2.2.6"
+  resolved "https://registry.yarnpkg.com/sha.js/-/sha.js-2.2.6.tgz#17ddeddc5f722fb66501658895461977867315ba"
+  integrity sha1-F93t3F9yL7ZlAWWIlUYZd4ZzFbo=
+
+shebang-command@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/shebang-command/-/shebang-command-1.2.0.tgz#44aac65b695b03398968c39f363fee5deafdf1ea"
+  integrity sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=
+  dependencies:
+    shebang-regex "^1.0.0"
+
+shebang-regex@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-1.0.0.tgz#da42f49740c0b42db2ca9728571cb190c98efea3"
+  integrity sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=
+
+signal-exit@^3.0.0, signal-exit@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"
+  integrity sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=
+
+simple-fmt@~0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/simple-fmt/-/simple-fmt-0.1.0.tgz#191bf566a59e6530482cb25ab53b4a8dc85c3a6b"
+  integrity sha1-GRv1ZqWeZTBILLJatTtKjchcOms=
+
+simple-is@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/simple-is/-/simple-is-0.2.0.tgz#2abb75aade39deb5cc815ce10e6191164850baf0"
+  integrity sha1-Krt1qt453rXMgVzhDmGRFkhQuvA=
+
+slash@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-1.0.0.tgz#c41f2f6c39fc16d1cd17ad4b5d896114ae470d55"
+  integrity sha1-xB8vbDn8FtHNF61LXYlhFK5HDVU=
+
+slice-ansi@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-1.0.0.tgz#044f1a49d8842ff307aad6b505ed178bd950134d"
+  integrity sha512-POqxBK6Lb3q6s047D/XsDVNPnF9Dl8JSaqe9h9lURl0OdNqy/ujDrOiIHtsqXMGbWWTIomRzAMaTyawAU//Reg==
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+
+snapdragon-node@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"
+  integrity sha512-O27l4xaMYt/RSQ5TR3vpWCAB5Kb/czIcqUFOM/C4fYcLnbZUc1PkjTAMjof2pBWaSTwOUd6qUHcFGVGj7aIwnw==
+  dependencies:
+    define-property "^1.0.0"
+    isobject "^3.0.0"
+    snapdragon-util "^3.0.1"
+
+snapdragon-util@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/snapdragon-util/-/snapdragon-util-3.0.1.tgz#f956479486f2acd79700693f6f7b805e45ab56e2"
+  integrity sha512-mbKkMdQKsjX4BAL4bRYTj21edOf8cN7XHdYUJEe+Zn99hVEYcMvKPct1IqNe7+AZPirn8BCDOQBHQZknqmKlZQ==
+  dependencies:
+    kind-of "^3.2.0"
+
+snapdragon@^0.8.1:
+  version "0.8.2"
+  resolved "https://registry.yarnpkg.com/snapdragon/-/snapdragon-0.8.2.tgz#64922e7c565b0e14204ba1aa7d6964278d25182d"
+  integrity sha512-FtyOnWN/wCHTVXOMwvSv26d+ko5vWlIDD6zoUJ7LW8vh+ZBC8QdljveRP+crNrtBwioEUWy/4dMtbBjA4ioNlg==
+  dependencies:
+    base "^0.11.1"
+    debug "^2.2.0"
+    define-property "^0.2.5"
+    extend-shallow "^2.0.1"
+    map-cache "^0.2.2"
+    source-map "^0.5.6"
+    source-map-resolve "^0.5.0"
+    use "^3.1.0"
+
+sockjs-client@^1.0.3:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/sockjs-client/-/sockjs-client-1.4.0.tgz#c9f2568e19c8fd8173b4997ea3420e0bb306c7d5"
+  integrity sha512-5zaLyO8/nri5cua0VtOrFXBPK1jbL4+1cebT/mmKA1E1ZXOvJrII75bPu0l0k843G/+iAbhEqzyKr0w/eCCj7g==
+  dependencies:
+    debug "^3.2.5"
+    eventsource "^1.0.7"
+    faye-websocket "~0.11.1"
+    inherits "^2.0.3"
+    json3 "^3.3.2"
+    url-parse "^1.4.3"
+
+sockjs@^0.3.15:
+  version "0.3.19"
+  resolved "https://registry.yarnpkg.com/sockjs/-/sockjs-0.3.19.tgz#d976bbe800af7bd20ae08598d582393508993c0d"
+  integrity sha512-V48klKZl8T6MzatbLlzzRNhMepEys9Y4oGFpypBFFn1gLI/QQ9HtLLyWJNbPlwGLelOVOEijUbTTJeLLI59jLw==
+  dependencies:
+    faye-websocket "^0.10.0"
+    uuid "^3.0.1"
+
+source-list-map@~0.1.7:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-0.1.8.tgz#c550b2ab5427f6b3f21f5afead88c4f5587b2106"
+  integrity sha1-xVCyq1Qn9rPyH1r+rYjE9Vh7IQY=
+
+source-map-resolve@^0.5.0:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
+  integrity sha512-MjqsvNwyz1s0k81Goz/9vRBe9SZdB09Bdw+/zYyO+3CuPk6fouTaxscHkgtE8jKvf01kVfl8riHzERQ/kefaSA==
+  dependencies:
+    atob "^2.1.1"
+    decode-uri-component "^0.2.0"
+    resolve-url "^0.2.1"
+    source-map-url "^0.4.0"
+    urix "^0.1.0"
+
+source-map-support@^0.2.10:
+  version "0.2.10"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.2.10.tgz#ea5a3900a1c1cb25096a0ae8cc5c2b4b10ded3dc"
+  integrity sha1-6lo5AKHByyUJagrozFwrSxDe09w=
+  dependencies:
+    source-map "0.1.32"
+
+source-map-support@^0.3.2:
+  version "0.3.3"
+  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.3.3.tgz#34900977d5ba3f07c7757ee72e73bb1a9b53754f"
+  integrity sha1-NJAJd9W6PwfHdX7nLnO7GptTdU8=
+  dependencies:
+    source-map "0.1.32"
+
+source-map-url@^0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/source-map-url/-/source-map-url-0.4.0.tgz#3e935d7ddd73631b97659956d55128e87b5084a3"
+  integrity sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=
+
+source-map@0.1.32:
+  version "0.1.32"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.32.tgz#c8b6c167797ba4740a8ea33252162ff08591b266"
+  integrity sha1-yLbBZ3l7pHQKjqMyUhYv8IWRsmY=
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.4.4, source-map@~0.4.1:
+  version "0.4.4"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.4.4.tgz#eba4f5da9c0dc999de68032d8b4f76173652036b"
+  integrity sha1-66T12pwNyZneaAMti092FzZSA2s=
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@^0.5.0, source-map@^0.5.3, source-map@^0.5.6, source-map@~0.5.0, source-map@~0.5.1:
+  version "0.5.7"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.7.tgz#8a039d2d1021d22d1ea14c80d8ea468ba2ef3fcc"
+  integrity sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=
+
+source-map@^0.6.1, source-map@~0.6.1:
+  version "0.6.1"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
+  integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==
+
+source-map@~0.1.33:
+  version "0.1.43"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.1.43.tgz#c24bc146ca517c1471f5dacbe2571b2b7f9e3346"
+  integrity sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=
+  dependencies:
+    amdefine ">=0.0.4"
+
+source-map@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.2.0.tgz#dab73fbcfc2ba819b4de03bd6f6eaa48164b3f9d"
+  integrity sha1-2rc/vPwrqBm03gO9b26qSBZLP50=
+  dependencies:
+    amdefine ">=0.0.4"
+
+spdx-correct@^3.0.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/spdx-correct/-/spdx-correct-3.1.0.tgz#fb83e504445268f154b074e218c87c003cd31df4"
+  integrity sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==
+  dependencies:
+    spdx-expression-parse "^3.0.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-exceptions@^2.1.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz#2ea450aee74f2a89bfb94519c07fcd6f41322977"
+  integrity sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==
+
+spdx-expression-parse@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz#99e119b7a5da00e05491c9fa338b7904823b41d0"
+  integrity sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==
+  dependencies:
+    spdx-exceptions "^2.1.0"
+    spdx-license-ids "^3.0.0"
+
+spdx-license-ids@^3.0.0:
+  version "3.0.5"
+  resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz#3694b5804567a458d3c8045842a6358632f62654"
+  integrity sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==
+
+split-string@^3.0.1, split-string@^3.0.2:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/split-string/-/split-string-3.1.0.tgz#7cb09dda3a86585705c64b39a6466038682e8fe2"
+  integrity sha512-NzNVhJDYpwceVVii8/Hu6DKfD2G+NrQHlS/V/qgv763EYudVwEcMQNxd2lh+0VrUByXN/oJkl5grOhYWvQUYiw==
+  dependencies:
+    extend-shallow "^3.0.0"
+
+split@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/split/-/split-1.0.1.tgz#605bd9be303aa59fb35f9229fbea0ddec9ea07d9"
+  integrity sha512-mTyOoPbrivtXnwnIxZRFYRrPNtEFKlpB2fvjSnCQUiAA6qAZzqwna5envK4uk6OIeP17CsdF3rSBGYVBsU0Tkg==
+  dependencies:
+    through "2"
+
+sprintf-js@^1.0.3:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.1.2.tgz#da1765262bf8c0f571749f2ad6c26300207ae673"
+  integrity sha512-VE0SOVEHCk7Qc8ulkWw3ntAzXuqf7S2lvwQaDLRnUeIEaKNQJzV6BwmLKhOqT61aGhfUMrXeaBk+oDGCzvhcug==
+
+sprintf-js@~1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
+  integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
+
+sshpk@^1.7.0:
+  version "1.16.1"
+  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.16.1.tgz#fb661c0bef29b39db40769ee39fa70093d6f6877"
+  integrity sha512-HXXqVUq7+pcKeLqqZj6mHFUMvXtOJt1uoUx09pFW6011inTMxqI8BA8PM95myrIyyKwdnzjdFjLiE6KBPVtJIg==
+  dependencies:
+    asn1 "~0.2.3"
+    assert-plus "^1.0.0"
+    bcrypt-pbkdf "^1.0.0"
+    dashdash "^1.12.0"
+    ecc-jsbn "~0.1.1"
+    getpass "^0.1.1"
+    jsbn "~0.1.0"
+    safer-buffer "^2.0.2"
+    tweetnacl "~0.14.0"
+
+stable@~0.1.3:
+  version "0.1.8"
+  resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
+  integrity sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w==
+
+static-extend@^0.1.1:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"
+  integrity sha1-YICcOcv/VTNyJv1eC1IPNB8ftcY=
+  dependencies:
+    define-property "^0.2.5"
+    object-copy "^0.1.0"
+
+"statuses@>= 1.4.0 < 2", "statuses@>= 1.5.0 < 2", statuses@~1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
+  integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
+
+stream-browserify@^2.0.1:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/stream-browserify/-/stream-browserify-2.0.2.tgz#87521d38a44aa7ee91ce1cd2a47df0cb49dd660b"
+  integrity sha512-nX6hmklHs/gr2FuxYDltq8fJA1GDlxKQCz8O/IM4atRqBH8OORmBNgfvW5gG10GT/qQ9u0CzIvr2X5Pkt6ntqg==
+  dependencies:
+    inherits "~2.0.1"
+    readable-stream "^2.0.2"
+
+stream-cache@~0.0.1:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/stream-cache/-/stream-cache-0.0.2.tgz#1ac5ad6832428ca55667dbdee395dad4e6db118f"
+  integrity sha1-GsWtaDJCjKVWZ9ve45Xa1ObbEY8=
+
+stream-http@^2.3.1:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/stream-http/-/stream-http-2.8.3.tgz#b2d242469288a5a27ec4fe8933acf623de6514fc"
+  integrity sha512-+TSkfINHDo4J+ZobQLWiMouQYB+UVYFttRA94FpEzzJ7ZdqcL4uUUQ7WkdkI4DSozGmgBUE/a47L+38PenXhUw==
+  dependencies:
+    builtin-status-codes "^3.0.0"
+    inherits "^2.0.1"
+    readable-stream "^2.3.6"
+    to-arraybuffer "^1.0.0"
+    xtend "^4.0.0"
+
+string-template@~0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/string-template/-/string-template-0.2.1.tgz#42932e598a352d01fc22ec3367d9d84eec6c9add"
+  integrity sha1-QpMuWYo1LQH8IuwzZ9nYTuxsmt0=
+
+string-width@^1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-1.0.2.tgz#118bdf5b8cdc51a2a7e70d211e07e2b0b9b107d3"
+  integrity sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=
+  dependencies:
+    code-point-at "^1.0.0"
+    is-fullwidth-code-point "^1.0.0"
+    strip-ansi "^3.0.0"
+
+"string-width@^1.0.2 || 2", string-width@^2.0.0, string-width@^2.1.0, string-width@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"
+  integrity sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==
+  dependencies:
+    is-fullwidth-code-point "^2.0.0"
+    strip-ansi "^4.0.0"
+
+string_decoder@0.10, string_decoder@^0.10.25:
+  version "0.10.31"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
+  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
+
+string_decoder@~1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.1.1.tgz#9cf1611ba62685d7030ae9e4ba34149c3af03fc8"
+  integrity sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==
+  dependencies:
+    safe-buffer "~5.1.0"
+
+stringmap@~0.2.2:
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/stringmap/-/stringmap-0.2.2.tgz#556c137b258f942b8776f5b2ef582aa069d7d1b1"
+  integrity sha1-VWwTeyWPlCuHdvWy71gqoGnX0bE=
+
+stringset@~0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/stringset/-/stringset-0.2.1.tgz#ef259c4e349344377fcd1c913dd2e848c9c042b5"
+  integrity sha1-7yWcTjSTRDd/zRyRPdLoSMnAQrU=
+
+strip-ansi@^3.0.0, strip-ansi@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-3.0.1.tgz#6a385fb8853d952d5ff05d0e8aaf94278dc63dcf"
+  integrity sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=
+  dependencies:
+    ansi-regex "^2.0.0"
+
+strip-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-4.0.0.tgz#a8479022eb1ac368a871389b635262c505ee368f"
+  integrity sha1-qEeQIusaw2iocTibY1JixQXuNo8=
+  dependencies:
+    ansi-regex "^3.0.0"
+
+strip-ansi@~0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-0.1.1.tgz#39e8a98d044d150660abe4a6808acf70bb7bc991"
+  integrity sha1-OeipjQRNFQZgq+SmgIrPcLt7yZE=
+
+strip-bom@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
+  integrity sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=
+  dependencies:
+    is-utf8 "^0.2.0"
+
+strip-eof@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-eof/-/strip-eof-1.0.0.tgz#bb43ff5598a6eb05d89b59fcd129c983313606bf"
+  integrity sha1-u0P/VZim6wXYm1n80SnJgzE2Br8=
+
+strip-indent@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/strip-indent/-/strip-indent-1.0.1.tgz#0c7962a6adefa7bbd4ac366460a638552ae1a0a2"
+  integrity sha1-DHlipq3vp7vUrDZkYKY4VSrhoKI=
+  dependencies:
+    get-stdin "^4.0.1"
+
+strip-json-comments@^2.0.1, strip-json-comments@~2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/strip-json-comments/-/strip-json-comments-2.0.1.tgz#3c531942e908c2697c0ec344858c286c7ca0a60a"
+  integrity sha1-PFMZQukIwml8DsNEhYwobHygpgo=
+
+strscan@>=1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/strscan/-/strscan-1.0.1.tgz#472d9bc00c68e906ef2fc22cdf762be7c61acc4d"
+  integrity sha1-Ry2bwAxo6QbvL8Is33Yr58YazE0=
+
+supports-color@5.4.0:
+  version "5.4.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.4.0.tgz#1c6b337402c2137605efe19f10fec390f6faab54"
+  integrity sha512-zjaXglF5nnWpsq470jSv6P9DwPvgLkuapYmfDm3JWOm0vkNTVF2tI4UrN2r6jH1qM/uc/WtxYY1hYoA2dOKj5w==
+  dependencies:
+    has-flag "^3.0.0"
+
+supports-color@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-2.0.0.tgz#535d045ce6b6363fa40117084629995e9df324c7"
+  integrity sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=
+
+supports-color@^3.1.0, supports-color@^3.1.1:
+  version "3.2.3"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-3.2.3.tgz#65ac0504b3954171d8a64946b2ae3cbb8a5f54f6"
+  integrity sha1-ZawFBLOVQXHYpklGsq48u4pfVPY=
+  dependencies:
+    has-flag "^1.0.0"
+
+supports-color@^5.3.0:
+  version "5.5.0"
+  resolved "https://registry.yarnpkg.com/supports-color/-/supports-color-5.5.0.tgz#e2e69a44ac8772f78a1ec0b35b689df6530efc8f"
+  integrity sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==
+  dependencies:
+    has-flag "^3.0.0"
+
+table@4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/table/-/table-4.0.2.tgz#a33447375391e766ad34d3486e6e2aedc84d2e36"
+  integrity sha512-UUkEAPdSGxtRpiV9ozJ5cMTtYiqz7Ni1OGqLXRCynrvzdtR1p+cfOWe2RJLwvUG8hNanaSRjecIqwOjqeatDsA==
+  dependencies:
+    ajv "^5.2.3"
+    ajv-keywords "^2.1.0"
+    chalk "^2.1.0"
+    lodash "^4.17.4"
+    slice-ansi "1.0.0"
+    string-width "^2.1.1"
+
+tapable@^0.1.8, tapable@~0.1.8:
+  version "0.1.10"
+  resolved "https://registry.yarnpkg.com/tapable/-/tapable-0.1.10.tgz#29c35707c2b70e50d07482b5d202e8ed446dafd4"
+  integrity sha1-KcNXB8K3DlDQdIK10gLo7URtr9Q=
+
+tar@^4:
+  version "4.4.13"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
+  integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==
+  dependencies:
+    chownr "^1.1.1"
+    fs-minipass "^1.2.5"
+    minipass "^2.8.6"
+    minizlib "^1.2.1"
+    mkdirp "^0.5.0"
+    safe-buffer "^5.1.2"
+    yallist "^3.0.3"
+
+text-table@~0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/text-table/-/text-table-0.2.0.tgz#7f5ee823ae805207c00af2df4a84ec3fcfa570b4"
+  integrity sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=
+
+through@2, through@^2.3.6, through@~2.3.8:
+  version "2.3.8"
+  resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
+  integrity sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=
+
+time-stamp@^2.0.0:
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/time-stamp/-/time-stamp-2.2.0.tgz#917e0a66905688790ec7bbbde04046259af83f57"
+  integrity sha512-zxke8goJQpBeEgD82CXABeMh0LSJcj7CXEd0OHOg45HgcofF7pxNwZm9+RknpxpDhwN4gFpySkApKfFYfRQnUA==
+
+timers-browserify@^2.0.2:
+  version "2.0.11"
+  resolved "https://registry.yarnpkg.com/timers-browserify/-/timers-browserify-2.0.11.tgz#800b1f3eee272e5bc53ee465a04d0e804c31211f"
+  integrity sha512-60aV6sgJ5YEbzUdn9c8kYGIqOubPoUdqQCul3SBAsRCZ40s6Y5cMcrW4dt3/k/EsbLVJNl9n6Vz3fTc+k2GeKQ==
+  dependencies:
+    setimmediate "^1.0.4"
+
+tiny-lr@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/tiny-lr/-/tiny-lr-1.1.1.tgz#9fa547412f238fedb068ee295af8b682c98b2aab"
+  integrity sha512-44yhA3tsaRoMOjQQ+5v5mVdqef+kH6Qze9jTpqtVufgYjYt08zyZAwNwwVBj3i1rJMnR52IxOW0LK0vBzgAkuA==
+  dependencies:
+    body "^5.1.0"
+    debug "^3.1.0"
+    faye-websocket "~0.10.0"
+    livereload-js "^2.3.0"
+    object-assign "^4.1.0"
+    qs "^6.4.0"
+
+tmp@^0.0.33:
+  version "0.0.33"
+  resolved "https://registry.yarnpkg.com/tmp/-/tmp-0.0.33.tgz#6d34335889768d21b2bcda0aa277ced3b1bfadf9"
+  integrity sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==
+  dependencies:
+    os-tmpdir "~1.0.2"
+
+to-arraybuffer@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz#7d229b1fcc637e466ca081180836a7aabff83f43"
+  integrity sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M=
+
+to-fast-properties@^1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
+  integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
+
+to-object-path@^0.3.0:
+  version "0.3.0"
+  resolved "https://registry.yarnpkg.com/to-object-path/-/to-object-path-0.3.0.tgz#297588b7b0e7e0ac08e04e672f85c1f4999e17af"
+  integrity sha1-KXWIt7Dn4KwI4E5nL4XB9JmeF68=
+  dependencies:
+    kind-of "^3.0.2"
+
+to-regex-range@^2.1.0:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-2.1.1.tgz#7c80c17b9dfebe599e27367e0d4dd5590141db38"
+  integrity sha1-fIDBe53+vlmeJzZ+DU3VWQFB2zg=
+  dependencies:
+    is-number "^3.0.0"
+    repeat-string "^1.6.1"
+
+to-regex@^3.0.1, to-regex@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/to-regex/-/to-regex-3.0.2.tgz#13cfdd9b336552f30b51f33a8ae1b42a7a7599ce"
+  integrity sha512-FWtleNAtZ/Ki2qtqej2CXTOayOH9bHDQF+Q48VpWyDXjbYxA4Yz8iDB31zXOBUlOHHKidDbqGVrTUvQMPmBGBw==
+  dependencies:
+    define-property "^2.0.2"
+    extend-shallow "^3.0.2"
+    regex-not "^1.0.2"
+    safe-regex "^1.1.0"
+
+toidentifier@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"
+  integrity sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==
+
+tough-cookie@~2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/tough-cookie/-/tough-cookie-2.4.3.tgz#53f36da3f47783b0925afa06ff9f3b165280f781"
+  integrity sha512-Q5srk/4vDM54WJsJio3XNn6K2sCG+CQ8G5Wz6bZhRZoAe/+TxjWB/GlFAnYEbkYVlON9FMk/fE3h2RLpPXo4lQ==
+  dependencies:
+    psl "^1.1.24"
+    punycode "^1.4.1"
+
+trim-newlines@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
+  integrity sha1-WIeWa7WCpFA6QetST301ARgVphM=
+
+trim-right@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
+  integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
+
+try-resolve@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/try-resolve/-/try-resolve-1.0.1.tgz#cfde6fabd72d63e5797cfaab873abbe8e700e912"
+  integrity sha1-z95vq9ctY+V5fPqrhzq76OcA6RI=
+
+tryor@~0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/tryor/-/tryor-0.1.2.tgz#8145e4ca7caff40acde3ccf946e8b8bb75b4172b"
+  integrity sha1-gUXkynyv9ArN48z5Rui4u3W0Fys=
+
+tslib@^1.8.0, tslib@^1.8.1:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
+  integrity sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==
+
+tslint@^5.14.0:
+  version "5.20.0"
+  resolved "https://registry.yarnpkg.com/tslint/-/tslint-5.20.0.tgz#fac93bfa79568a5a24e7be9cdde5e02b02d00ec1"
+  integrity sha512-2vqIvkMHbnx8acMogAERQ/IuINOq6DFqgF8/VDvhEkBqQh/x6SP0Y+OHnKth9/ZcHQSroOZwUQSN18v8KKF0/g==
+  dependencies:
+    "@babel/code-frame" "^7.0.0"
+    builtin-modules "^1.1.1"
+    chalk "^2.3.0"
+    commander "^2.12.1"
+    diff "^4.0.1"
+    glob "^7.1.1"
+    js-yaml "^3.13.1"
+    minimatch "^3.0.4"
+    mkdirp "^0.5.1"
+    resolve "^1.3.2"
+    semver "^5.3.0"
+    tslib "^1.8.0"
+    tsutils "^2.29.0"
+
+tsutils@^2.29.0:
+  version "2.29.0"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.29.0.tgz#32b488501467acbedd4b85498673a0812aca0b99"
+  integrity sha512-g5JVHCIJwzfISaXpXE1qvNalca5Jwob6FjI4AoPlqMusJ6ftFE7IkkFoMhVLRgK+4Kx3gkzb8UZK5t5yTTvEmA==
+  dependencies:
+    tslib "^1.8.1"
+
+tty-browserify@0.0.0:
+  version "0.0.0"
+  resolved "https://registry.yarnpkg.com/tty-browserify/-/tty-browserify-0.0.0.tgz#a157ba402da24e9bf957f9aa69d524eed42901a6"
+  integrity sha1-oVe6QC2iTpv5V/mqadUk7tQpAaY=
+
+tunnel-agent@^0.6.0:
+  version "0.6.0"
+  resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
+  integrity sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=
+  dependencies:
+    safe-buffer "^5.0.1"
+
+tweetnacl@^0.14.3, tweetnacl@~0.14.0:
+  version "0.14.5"
+  resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
+  integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
+
+type-check@~0.3.1, type-check@~0.3.2:
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/type-check/-/type-check-0.3.2.tgz#5884cab512cf1d355e3fb784f30804b2b520db72"
+  integrity sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=
+  dependencies:
+    prelude-ls "~1.1.2"
+
+type-is@~1.6.17, type-is@~1.6.18:
+  version "1.6.18"
+  resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
+  integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==
+  dependencies:
+    media-typer "0.3.0"
+    mime-types "~2.1.24"
+
+typedarray@^0.0.6:
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
+  integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
+
+typescript@^3.4.3:
+  version "3.6.4"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.6.4.tgz#b18752bb3792bc1a0281335f7f6ebf1bbfc5b91d"
+  integrity sha512-unoCll1+l+YK4i4F8f22TaNVPRHcD9PA3yCuZ8g5e0qGqlVlJ/8FSateOLLSagn+Yg5+ZwuPkL8LFUc0Jcvksg==
+
+typescript@next:
+  version "3.8.0-dev.20191025"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.0-dev.20191025.tgz#680191c15791aee9eda7ce7ca131772d7ff3105a"
+  integrity sha512-5cjThi6BKQy3C40gW9HeBLiMH+vrASAtT8RwrYzn5IMaAepiF8mv3gKqji4pkjCTBlf0iNDu6fuujKm7yO1HEw==
+
+uglify-js@^3.1.4:
+  version "3.6.4"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.6.4.tgz#88cc880c6ed5cf9868fdfa0760654e7bed463f1d"
+  integrity sha512-9Yc2i881pF4BPGhjteCXQNaXx1DCwm3dtOyBaG2hitHjLWOczw/ki8vD1bqyT3u6K0Ms/FpCShkmfg+FtlOfYA==
+  dependencies:
+    commander "~2.20.3"
+    source-map "~0.6.1"
+
+uglify-js@~2.6.2:
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.6.4.tgz#65ea2fb3059c9394692f15fed87c2b36c16b9adf"
+  integrity sha1-ZeovswWck5RpLxX+2HwrNsFrmt8=
+  dependencies:
+    async "~0.2.6"
+    source-map "~0.5.1"
+    uglify-to-browserify "~1.0.0"
+    yargs "~3.10.0"
+
+uglify-js@~2.7.3:
+  version "2.7.5"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.7.5.tgz#4612c0c7baaee2ba7c487de4904ae122079f2ca8"
+  integrity sha1-RhLAx7qu4rp8SH3kkErhIgefLKg=
+  dependencies:
+    async "~0.2.6"
+    source-map "~0.5.1"
+    uglify-to-browserify "~1.0.0"
+    yargs "~3.10.0"
+
+uglify-to-browserify@~1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
+  integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
+
+unc-path-regex@^0.1.2:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/unc-path-regex/-/unc-path-regex-0.1.2.tgz#e73dd3d7b0d7c5ed86fbac6b0ae7d8c6a69d50fa"
+  integrity sha1-5z3T17DXxe2G+6xrCufYxqadUPo=
+
+underscore.string@~2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-2.3.3.tgz#71c08bf6b428b1133f37e78fa3a21c82f7329b0d"
+  integrity sha1-ccCL9rQosRM/N+ePo6Icgvcymw0=
+
+underscore.string@~3.3.4:
+  version "3.3.5"
+  resolved "https://registry.yarnpkg.com/underscore.string/-/underscore.string-3.3.5.tgz#fc2ad255b8bd309e239cbc5816fd23a9b7ea4023"
+  integrity sha512-g+dpmgn+XBneLmXXo+sGlW5xQEt4ErkS3mgeN2GFbremYeMBSJKr9Wf2KJplQVaiPY/f7FN6atosWYNm9ovrYg==
+  dependencies:
+    sprintf-js "^1.0.3"
+    util-deprecate "^1.0.2"
+
+underscore@1.1.x:
+  version "1.1.7"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.1.7.tgz#40bab84bad19d230096e8d6ef628bff055d83db0"
+  integrity sha1-QLq4S60Z0jAJbo1u9ii/8FXYPbA=
+
+underscore@^1.5.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.9.1.tgz#06dce34a0e68a7babc29b365b8e74b8925203961"
+  integrity sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg==
+
+underscore@~1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.6.0.tgz#8b38b10cacdef63337b8b24e4ff86d45aea529a8"
+  integrity sha1-izixDKze9jM3uLJOT/htRa6lKag=
+
+union-value@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/union-value/-/union-value-1.0.1.tgz#0b6fe7b835aecda61c6ea4d4f02c14221e109847"
+  integrity sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==
+  dependencies:
+    arr-union "^3.1.0"
+    get-value "^2.0.6"
+    is-extendable "^0.1.1"
+    set-value "^2.0.1"
+
+universalify@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
+  integrity sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==
+
+unpipe@1.0.0, unpipe@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
+  integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
+
+unset-value@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/unset-value/-/unset-value-1.0.0.tgz#8376873f7d2335179ffb1e6fc3a8ed0dfc8ab559"
+  integrity sha1-g3aHP30jNRef+x5vw6jtDfyKtVk=
+  dependencies:
+    has-value "^0.3.1"
+    isobject "^3.0.0"
+
+uri-js@^4.2.2:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/uri-js/-/uri-js-4.2.2.tgz#94c540e1ff772956e2299507c010aea6c8838eb0"
+  integrity sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==
+  dependencies:
+    punycode "^2.1.0"
+
+uri-path@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/uri-path/-/uri-path-1.0.0.tgz#9747f018358933c31de0fccfd82d138e67262e32"
+  integrity sha1-l0fwGDWJM8Md4PzP2C0TjmcmLjI=
+
+urix@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/urix/-/urix-0.1.0.tgz#da937f7a62e21fec1fd18d49b35c2935067a6c72"
+  integrity sha1-2pN/emLiH+wf0Y1Js1wpNQZ6bHI=
+
+url-parse@^1.4.3:
+  version "1.4.7"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.4.7.tgz#a8a83535e8c00a316e403a5db4ac1b9b853ae278"
+  integrity sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==
+  dependencies:
+    querystringify "^2.1.1"
+    requires-port "^1.0.0"
+
+url@0.10.3:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/url/-/url-0.10.3.tgz#021e4d9c7705f21bbf37d03ceb58767402774c64"
+  integrity sha1-Ah5NnHcF8hu/N9A861h2dAJ3TGQ=
+  dependencies:
+    punycode "1.3.2"
+    querystring "0.2.0"
+
+url@^0.11.0:
+  version "0.11.0"
+  resolved "https://registry.yarnpkg.com/url/-/url-0.11.0.tgz#3838e97cfc60521eb73c525a8e55bfdd9e2e28f1"
+  integrity sha1-ODjpfPxgUh63PFJajlW/3Z4uKPE=
+  dependencies:
+    punycode "1.3.2"
+    querystring "0.2.0"
+
+use@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/use/-/use-3.1.1.tgz#d50c8cac79a19fbc20f2911f56eb973f4e10070f"
+  integrity sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ==
+
+user-home@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/user-home/-/user-home-1.1.1.tgz#2b5be23a32b63a7c9deb8d0f28d485724a3df190"
+  integrity sha1-K1viOjK2Onyd640PKNSFcko98ZA=
+
+util-deprecate@^1.0.2, util-deprecate@~1.0.1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
+  integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
+
+util@0.10.3:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.10.3.tgz#7afb1afe50805246489e3db7fe0ed379336ac0f9"
+  integrity sha1-evsa/lCAUkZInj23/g7TeTNqwPk=
+  dependencies:
+    inherits "2.0.1"
+
+util@^0.10.3:
+  version "0.10.4"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.10.4.tgz#3aa0125bfe668a4672de58857d3ace27ecb76901"
+  integrity sha512-0Pm9hTQ3se5ll1XihRic3FDIku70C+iHUdT/W926rSgHV5QgXsYbKZN8MSC3tJtSkhuROzvsQjAaFENRXr+19A==
+  dependencies:
+    inherits "2.0.3"
+
+utils-merge@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+  integrity sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=
+
+uuid@3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
+  integrity sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==
+
+uuid@^3.0.1, uuid@^3.3.2:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.3.tgz#4568f0216e78760ee1dbf3a4d2cf53e224112866"
+  integrity sha512-pW0No1RGHgzlpHJO1nsVrHKpOEIxkGg1xB+v0ZmdNH5OAeAwzAVrCnI2/6Mtx+Uys6iaylxa+D3g4j63IKKjSQ==
+
+v8flags@~3.1.1:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/v8flags/-/v8flags-3.1.3.tgz#fc9dc23521ca20c5433f81cc4eb9b3033bb105d8"
+  integrity sha512-amh9CCg3ZxkzQ48Mhcb8iX7xpAfYJgePHxWMQCBWECpOSqJUXgY26ncA61UTV0BkPqfhcy6mzwCIoP4ygxpW8w==
+  dependencies:
+    homedir-polyfill "^1.0.1"
+
+validate-npm-package-license@^3.0.1:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz#fc91f6b9c7ba15c857f4cb2c5defeec39d4f410a"
+  integrity sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==
+  dependencies:
+    spdx-correct "^3.0.0"
+    spdx-expression-parse "^3.0.0"
+
+vary@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
+  integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
+
+verror@1.10.0:
+  version "1.10.0"
+  resolved "https://registry.yarnpkg.com/verror/-/verror-1.10.0.tgz#3a105ca17053af55d6e270c1f8288682e18da400"
+  integrity sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=
+  dependencies:
+    assert-plus "^1.0.0"
+    core-util-is "1.0.2"
+    extsprintf "^1.2.0"
+
+vm-browserify@0.0.4:
+  version "0.0.4"
+  resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-0.0.4.tgz#5d7ea45bbef9e4a6ff65f95438e0a87c357d5a73"
+  integrity sha1-XX6kW7755Kb/ZflUOOCofDV9WnM=
+  dependencies:
+    indexof "0.0.1"
+
+watchpack@^0.2.1:
+  version "0.2.9"
+  resolved "https://registry.yarnpkg.com/watchpack/-/watchpack-0.2.9.tgz#62eaa4ab5e5ba35fdfc018275626e3c0f5e3fb0b"
+  integrity sha1-Yuqkq15bo1/fwBgnVibjwPXj+ws=
+  dependencies:
+    async "^0.9.0"
+    chokidar "^1.0.0"
+    graceful-fs "^4.1.2"
+
+webpack-core@~0.6.9:
+  version "0.6.9"
+  resolved "https://registry.yarnpkg.com/webpack-core/-/webpack-core-0.6.9.tgz#fc571588c8558da77be9efb6debdc5a3b172bdc2"
+  integrity sha1-/FcViMhVjad76e+23r3Fo7FyvcI=
+  dependencies:
+    source-list-map "~0.1.7"
+    source-map "~0.4.1"
+
+webpack-dev-middleware@^1.10.2:
+  version "1.12.2"
+  resolved "https://registry.yarnpkg.com/webpack-dev-middleware/-/webpack-dev-middleware-1.12.2.tgz#f8fc1120ce3b4fc5680ceecb43d777966b21105e"
+  integrity sha512-FCrqPy1yy/sN6U/SaEZcHKRXGlqU0DUaEBL45jkUYoB8foVb6wCnbIJ1HKIx+qUFTW+3JpVcCJCxZ8VATL4e+A==
+  dependencies:
+    memory-fs "~0.4.1"
+    mime "^1.5.0"
+    path-is-absolute "^1.0.0"
+    range-parser "^1.0.3"
+    time-stamp "^2.0.0"
+
+webpack-dev-server@^1.12.1:
+  version "1.16.5"
+  resolved "https://registry.yarnpkg.com/webpack-dev-server/-/webpack-dev-server-1.16.5.tgz#0cbd5f2d2ac8d4e593aacd5c9702e7bbd5e59892"
+  integrity sha1-DL1fLSrI1OWTqs1clwLnu9XlmJI=
+  dependencies:
+    compression "^1.5.2"
+    connect-history-api-fallback "^1.3.0"
+    express "^4.13.3"
+    http-proxy-middleware "~0.17.1"
+    open "0.0.5"
+    optimist "~0.6.1"
+    serve-index "^1.7.2"
+    sockjs "^0.3.15"
+    sockjs-client "^1.0.3"
+    stream-cache "~0.0.1"
+    strip-ansi "^3.0.0"
+    supports-color "^3.1.1"
+    webpack-dev-middleware "^1.10.2"
+
+webpack@^1.12.6:
+  version "1.15.0"
+  resolved "https://registry.yarnpkg.com/webpack/-/webpack-1.15.0.tgz#4ff31f53db03339e55164a9d468ee0324968fe98"
+  integrity sha1-T/MfU9sDM55VFkqdRo7gMklo/pg=
+  dependencies:
+    acorn "^3.0.0"
+    async "^1.3.0"
+    clone "^1.0.2"
+    enhanced-resolve "~0.9.0"
+    interpret "^0.6.4"
+    loader-utils "^0.2.11"
+    memory-fs "~0.3.0"
+    mkdirp "~0.5.0"
+    node-libs-browser "^0.7.0"
+    optimist "~0.6.0"
+    supports-color "^3.1.0"
+    tapable "~0.1.8"
+    uglify-js "~2.7.3"
+    watchpack "^0.2.1"
+    webpack-core "~0.6.9"
+
+websocket-driver@>=0.5.1:
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/websocket-driver/-/websocket-driver-0.7.3.tgz#a2d4e0d4f4f116f1e6297eba58b05d430100e9f9"
+  integrity sha512-bpxWlvbbB459Mlipc5GBzzZwhoZgGEZLuqPaR0INBGnPAY1vdBX6hPnoFXiw+3yWxDuHyQjO2oXTMyS8A5haFg==
+  dependencies:
+    http-parser-js ">=0.4.0 <0.4.11"
+    safe-buffer ">=5.1.0"
+    websocket-extensions ">=0.1.1"
+
+websocket-extensions@>=0.1.1:
+  version "0.1.3"
+  resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
+  integrity sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==
+
+when@~3.7.5:
+  version "3.7.8"
+  resolved "https://registry.yarnpkg.com/when/-/when-3.7.8.tgz#c7130b6a7ea04693e842cdc9e7a1f2aa39a39f82"
+  integrity sha1-xxMLan6gRpPoQs3J56Hyqjmjn4I=
+
+which-module@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"
+  integrity sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=
+
+which@^1.1.1, which@^1.2.14, which@^1.2.9, which@~1.3.0:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/which/-/which-1.3.1.tgz#a45043d54f5805316da8d62f9f50918d3da70b0a"
+  integrity sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==
+  dependencies:
+    isexe "^2.0.0"
+
+wide-align@^1.1.0:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/wide-align/-/wide-align-1.1.3.tgz#ae074e6bdc0c14a431e804e624549c633b000457"
+  integrity sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==
+  dependencies:
+    string-width "^1.0.2 || 2"
+
+window-size@0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.0.tgz#5438cd2ea93b202efa3a19fe8887aee7c94f9c9d"
+  integrity sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=
+
+window-size@^0.1.2, window-size@^0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.1.4.tgz#f8e1aa1ee5a53ec5bf151ffa09742a6ad7697876"
+  integrity sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY=
+
+wordwrap@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.2.tgz#b79669bb42ecb409f83d583cad52ca17eaa1643f"
+  integrity sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=
+
+wordwrap@^1.0.0, wordwrap@~1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
+
+wordwrap@~0.0.2:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
+  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
+
+wrap-ansi@^2.0.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
+  integrity sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=
+  dependencies:
+    string-width "^1.0.1"
+    strip-ansi "^3.0.1"
+
+wrappy@1:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
+  integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
+
+write@^0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
+  integrity sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=
+  dependencies:
+    mkdirp "^0.5.1"
+
+xml2js@0.4.19:
+  version "0.4.19"
+  resolved "https://registry.yarnpkg.com/xml2js/-/xml2js-0.4.19.tgz#686c20f213209e94abf0d1bcf1efaa291c7827a7"
+  integrity sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==
+  dependencies:
+    sax ">=0.6.0"
+    xmlbuilder "~9.0.1"
+
+xmlbuilder@~9.0.1:
+  version "9.0.7"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
+  integrity sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=
+
+xtend@^4.0.0:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
+  integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
+
+y18n@^3.2.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
+  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
+
+"y18n@^3.2.1 || ^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
+  integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
+
+yallist@^2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
+  integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
+
+yallist@^3.0.0, yallist@^3.0.3:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
+  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
+
+yargs-parser@^11.1.1:
+  version "11.1.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-11.1.1.tgz#879a0865973bca9f6bab5cbdf3b1c67ec7d3bcf4"
+  integrity sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==
+  dependencies:
+    camelcase "^5.0.0"
+    decamelize "^1.2.0"
+
+yargs@^12.0.5:
+  version "12.0.5"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
+  integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==
+  dependencies:
+    cliui "^4.0.0"
+    decamelize "^1.2.0"
+    find-up "^3.0.0"
+    get-caller-file "^1.0.1"
+    os-locale "^3.0.0"
+    require-directory "^2.1.1"
+    require-main-filename "^1.0.1"
+    set-blocking "^2.0.0"
+    string-width "^2.0.0"
+    which-module "^2.0.0"
+    y18n "^3.2.1 || ^4.0.0"
+    yargs-parser "^11.1.1"
+
+yargs@^3.32.0:
+  version "3.32.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
+  integrity sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=
+  dependencies:
+    camelcase "^2.0.1"
+    cliui "^3.0.3"
+    decamelize "^1.1.1"
+    os-locale "^1.4.0"
+    string-width "^1.0.1"
+    window-size "^0.1.4"
+    y18n "^3.2.0"
+
+yargs@~3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
+  integrity sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=
+  dependencies:
+    camelcase "^1.0.2"
+    cliui "^2.1.0"
+    decamelize "^1.0.0"
+    window-size "0.1.0"
+
+yargs@~3.27.0:
+  version "3.27.0"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.27.0.tgz#21205469316e939131d59f2da0c6d7f98221ea40"
+  integrity sha1-ISBUaTFuk5Ex1Z8toMbX+YIh6kA=
+  dependencies:
+    camelcase "^1.2.1"
+    cliui "^2.1.0"
+    decamelize "^1.0.0"
+    os-locale "^1.4.0"
+    window-size "^0.1.2"
+    y18n "^3.2.0"

From 7fcf9d24f8f4aa8de331f8bda13690ba5b85eff1 Mon Sep 17 00:00:00 2001
From: kpdecker <kpdecker@gmail.com>
Date: Sat, 12 Mar 2016 05:16:18 +0100
Subject: [PATCH 098/191] Use objects for hash value tracking

The use of arrays was incorrect for the data type and causing problems when hash keys conflicted with array behaviors.

Fixes #1194

(cherry picked from commit 768ddbd6616f47a7a77ae2046775c43c2fe3e5ee)
---
 lib/handlebars/compiler/javascript-compiler.js |  2 +-
 spec/regressions.js                            | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index cc26eb240..b21df1d8a 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -543,7 +543,7 @@ JavaScriptCompiler.prototype = {
     if (this.hash) {
       this.hashes.push(this.hash);
     }
-    this.hash = {values: [], types: [], contexts: [], ids: []};
+    this.hash = {values: {}, types: [], contexts: [], ids: []};
   },
   popHash: function() {
     let hash = this.hash;
diff --git a/spec/regressions.js b/spec/regressions.js
index 58db65bcd..a8879067e 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -323,4 +323,15 @@ describe('Regressions', function() {
         }, 'useData': true});
     }
   });
+
+  it('should allow hash with protected array names', function() {
+    var obj = {array: [1], name: 'John'};
+    var helpers = {
+      helpa: function(options) {
+        return options.hash.length;
+      }
+    };
+
+    shouldCompileTo('{{helpa length="foo"}}', [obj, helpers], 'foo');
+  });
 });

From 62ed3c25c76445deb8c51a5b36ce52f7f1be3411 Mon Sep 17 00:00:00 2001
From: Robert Jackson <me@rwjblue.com>
Date: Sun, 27 Oct 2019 19:28:28 -0400
Subject: [PATCH 099/191] Add Handlebars.parseWithoutProcessing (#1584)

When authoring tooling that parses Handlebars files and emits Handlebars
files, you often want to preserve the **exact** formatting of the input.
The changes in this commit add a new method to the `Handlebars`
namespace: `parseWithoutProcessing`. Unlike, `Handlebars.parse` (which
will mutate the parsed AST to apply whitespace control) this method will
parse the template and return it directly (**without** processing
:wink:).

For example, parsing the following template:

```hbs
 {{#foo}}
   {{~bar~}} {{baz~}}
 {{/foo}}
```

Using `Handlebars.parse`, the AST returned would have truncated the
following whitespace:

* The whitespace prior to the `{{#foo}}`
* The newline following `{{#foo}}`
* The leading whitespace before `{{~bar~}}`
* The whitespace between `{{~bar~}}` and `{{baz~}}`
* The newline after `{{baz~}}`
* The whitespace prior to the `{{/foo}}`

When `Handlebars.parse` is used from  `Handlebars.precompile` or
`Handlebars.compile`, this whitespace stripping is **very** important
(these behaviors are intentional, and generally lead to better rendered
output).

When the same template is parsed with
`Handlebars.parseWithoutProcessing` none of those modifications to the
AST are made. This enables "codemod tooling" (e.g. `prettier` and
`ember-template-recast`) to preserve the **exact** initial formatting.
Prior to these changes, those tools would have to _manually_ reconstruct
the whitespace that is lost prior to emitting source.
---
 docs/compiler-api.md            |  28 +++++++++
 lib/handlebars.js               |   3 +-
 lib/handlebars/compiler/base.js |  12 +++-
 spec/ast.js                     | 105 ++++++++++++++++++++++++++++++++
 types/index.d.ts                |   5 +-
 types/test.ts                   |  10 ++-
 6 files changed, 157 insertions(+), 6 deletions(-)

diff --git a/docs/compiler-api.md b/docs/compiler-api.md
index f419fbcd2..99b950693 100644
--- a/docs/compiler-api.md
+++ b/docs/compiler-api.md
@@ -16,6 +16,34 @@ var ast = Handlebars.parse(myTemplate);
 Handlebars.precompile(ast);
 ```
 
+### Parsing
+
+There are two primary APIs that are used to parse an existing template into the AST:
+
+#### parseWithoutProcessing
+
+`Handlebars.parseWithoutProcessing` is the primary mechanism to turn a raw template string into the Handlebars AST described in this document. No processing is done on the resulting AST which makes this ideal for codemod (for source to source transformation) tooling.
+
+Example:
+
+```js
+let ast = Handlebars.parseWithoutProcessing(myTemplate);
+```
+
+#### parse
+
+`Handlebars.parse` will parse the template with `parseWithoutProcessing` (see above) then it will update the AST to strip extraneous whitespace. The whitespace stripping functionality handles two distinct situations:
+
+* Removes whitespace around dynamic statements that are on a line by themselves (aka "stand alone")
+* Applies "whitespace control" characters (i.e. `~`) by truncating the `ContentStatement` `value` property appropriately (e.g. `\n\n{{~foo}}` would have a `ContentStatement` with a `value` of `''`)
+
+`Handlebars.parse` is used internally by `Handlebars.precompile` and `Handlebars.compile`.
+
+Example:
+
+```js
+let ast = Handlebars.parse(myTemplate);
+```
 
 ### Basic
 
diff --git a/lib/handlebars.js b/lib/handlebars.js
index f11495905..69bcb410b 100644
--- a/lib/handlebars.js
+++ b/lib/handlebars.js
@@ -2,7 +2,7 @@ import runtime from './handlebars.runtime';
 
 // Compiler imports
 import AST from './handlebars/compiler/ast';
-import { parser as Parser, parse } from './handlebars/compiler/base';
+import { parser as Parser, parse, parseWithoutProcessing } from './handlebars/compiler/base';
 import { Compiler, compile, precompile } from './handlebars/compiler/compiler';
 import JavaScriptCompiler from './handlebars/compiler/javascript-compiler';
 import Visitor from './handlebars/compiler/visitor';
@@ -25,6 +25,7 @@ function create() {
   hb.JavaScriptCompiler = JavaScriptCompiler;
   hb.Parser = Parser;
   hb.parse = parse;
+  hb.parseWithoutProcessing = parseWithoutProcessing;
 
   return hb;
 }
diff --git a/lib/handlebars/compiler/base.js b/lib/handlebars/compiler/base.js
index c6871d399..19989ca5e 100644
--- a/lib/handlebars/compiler/base.js
+++ b/lib/handlebars/compiler/base.js
@@ -8,7 +8,7 @@ export { parser };
 let yy = {};
 extend(yy, Helpers);
 
-export function parse(input, options) {
+export function parseWithoutProcessing(input, options) {
   // Just return if an already-compiled AST was passed in.
   if (input.type === 'Program') { return input; }
 
@@ -19,6 +19,14 @@ export function parse(input, options) {
     return new yy.SourceLocation(options && options.srcName, locInfo);
   };
 
+  let ast = parser.parse(input);
+
+  return ast;
+}
+
+export function parse(input, options) {
+  let ast = parseWithoutProcessing(input, options);
   let strip = new WhitespaceControl(options);
-  return strip.accept(parser.parse(input));
+
+  return strip.accept(ast);
 }
diff --git a/spec/ast.js b/spec/ast.js
index e43438be7..09034739f 100644
--- a/spec/ast.js
+++ b/spec/ast.js
@@ -123,6 +123,40 @@ describe('ast', function() {
      });
   });
 
+  describe('whitespace control', function() {
+    describe('parse', function() {
+      it('mustache', function() {
+        let ast = Handlebars.parse('  {{~comment~}} ');
+
+        equals(ast.body[0].value, '');
+        equals(ast.body[2].value, '');
+      });
+
+      it('block statements', function() {
+        var ast = Handlebars.parse(' {{# comment~}} \nfoo\n {{~/comment}}');
+
+        equals(ast.body[0].value, '');
+        equals(ast.body[1].program.body[0].value, 'foo');
+      });
+    });
+
+    describe('parseWithoutProcessing', function() {
+      it('mustache', function() {
+        let ast = Handlebars.parseWithoutProcessing('  {{~comment~}} ');
+
+        equals(ast.body[0].value, '  ');
+        equals(ast.body[2].value, ' ');
+      });
+
+      it('block statements', function() {
+        var ast = Handlebars.parseWithoutProcessing(' {{# comment~}} \nfoo\n {{~/comment}}');
+
+        equals(ast.body[0].value, ' ');
+        equals(ast.body[1].program.body[0].value, ' \nfoo\n ');
+      });
+    });
+  });
+
   describe('standalone flags', function() {
     describe('mustache', function() {
       it('does not mark mustaches as standalone', function() {
@@ -131,6 +165,54 @@ describe('ast', function() {
         equals(!!ast.body[2].value, true);
       });
     });
+    describe('blocks - parseWithoutProcessing', function() {
+      it('block mustaches', function() {
+        var ast = Handlebars.parseWithoutProcessing(' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
+          block = ast.body[1];
+
+        equals(ast.body[0].value, ' ');
+
+        equals(block.program.body[0].value, ' \nfoo\n ');
+        equals(block.inverse.body[0].value, ' \n  bar \n  ');
+
+        equals(ast.body[2].value, ' ');
+      });
+      it('initial block mustaches', function() {
+        var ast = Handlebars.parseWithoutProcessing('{{# comment}} \nfoo\n {{/comment}}'),
+          block = ast.body[0];
+
+        equals(block.program.body[0].value, ' \nfoo\n ');
+      });
+      it('mustaches with children', function() {
+        var ast = Handlebars.parseWithoutProcessing('{{# comment}} \n{{foo}}\n {{/comment}}'),
+          block = ast.body[0];
+
+        equals(block.program.body[0].value, ' \n');
+        equals(block.program.body[1].path.original, 'foo');
+        equals(block.program.body[2].value, '\n ');
+      });
+      it('nested block mustaches', function() {
+        var ast = Handlebars.parseWithoutProcessing('{{#foo}} \n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} \n{{/foo}}'),
+          body = ast.body[0].program.body,
+          block = body[1];
+
+        equals(body[0].value, ' \n');
+
+        equals(block.program.body[0].value, ' \nfoo\n ');
+        equals(block.inverse.body[0].value, ' \n  bar \n  ');
+      });
+      it('column 0 block mustaches', function() {
+        var ast = Handlebars.parseWithoutProcessing('test\n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
+            block = ast.body[1];
+
+        equals(ast.body[0].omit, undefined);
+
+        equals(block.program.body[0].value, ' \nfoo\n ');
+        equals(block.inverse.body[0].value, ' \n  bar \n  ');
+
+        equals(ast.body[2].value, ' ');
+      });
+    });
     describe('blocks', function() {
       it('marks block mustaches as standalone', function() {
         var ast = Handlebars.parse(' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
@@ -204,6 +286,18 @@ describe('ast', function() {
         equals(ast.body[2].value, '');
       });
     });
+    describe('partials - parseWithoutProcessing', function() {
+      it('simple partial', function() {
+        var ast = Handlebars.parseWithoutProcessing('{{> partial }} ');
+        equals(ast.body[1].value, ' ');
+      });
+      it('indented partial', function() {
+        var ast = Handlebars.parseWithoutProcessing('  {{> partial }} ');
+        equals(ast.body[0].value, '  ');
+        equals(ast.body[1].indent, '');
+        equals(ast.body[2].value, ' ');
+      });
+    });
     describe('partials', function() {
       it('marks partial as standalone', function() {
         var ast = Handlebars.parse('{{> partial }} ');
@@ -223,6 +317,17 @@ describe('ast', function() {
         equals(ast.body[1].omit, undefined);
       });
     });
+    describe('comments - parseWithoutProcessing', function() {
+      it('simple comment', function() {
+        var ast = Handlebars.parseWithoutProcessing('{{! comment }} ');
+        equals(ast.body[1].value, ' ');
+      });
+      it('indented comment', function() {
+        var ast = Handlebars.parseWithoutProcessing('  {{! comment }} ');
+        equals(ast.body[0].value, '  ');
+        equals(ast.body[2].value, ' ');
+      });
+    });
     describe('comments', function() {
       it('marks comment as standalone', function() {
         var ast = Handlebars.parse('{{! comment }} ');
diff --git a/types/index.d.ts b/types/index.d.ts
index 6fdaf0f9c..00e04d427 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -47,8 +47,8 @@ declare namespace Handlebars {
   }
 
   export interface ParseOptions {
-      srcName?: string,
-      ignoreStandalone?: boolean
+      srcName?: string;
+      ignoreStandalone?: boolean;
   }
 
   export function registerHelper(name: string, fn: HelperDelegate): void;
@@ -69,6 +69,7 @@ declare namespace Handlebars {
   export function Exception(message: string): void;
   export function log(level: number, obj: any): void;
   export function parse(input: string, options?: ParseOptions): hbs.AST.Program;
+  export function parseWithoutProcessing(input: string, options?: ParseOptions): hbs.AST.Program;
   export function compile<T = any>(input: any, options?: CompileOptions): HandlebarsTemplateDelegate<T>;
   export function precompile(input: any, options?: PrecompileOptions): TemplateSpecification;
   export function template<T = any>(precompilation: TemplateSpecification): HandlebarsTemplateDelegate<T>;
diff --git a/types/test.ts b/types/test.ts
index ff435916e..cef0d5981 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -192,4 +192,12 @@ switch(allthings.type) {
     break;
   default:
     break;
-}
\ No newline at end of file
+}
+
+function testParseWithoutProcessing() {
+  const parsedTemplate: hbs.AST.Program = Handlebars.parseWithoutProcessing('<p>Hello, my name is {{name}}.</p>', {
+    srcName: "/foo/bar/baz.hbs",
+  });
+
+  const parsedTemplateWithoutOptions: hbs.AST.Program = Handlebars.parseWithoutProcessing('<p>Hello, my name is {{name}}.</p>');
+}

From b8913fcc6598ee7e6d1ef5f1dec98a002f0c36c6 Mon Sep 17 00:00:00 2001
From: Kabir Baidhya <kabirbaidhya@gmail.com>
Date: Mon, 28 Oct 2019 20:43:59 +0545
Subject: [PATCH 100/191] Add missing types for the Exception class properties
 (#1583)

* Convert Exception to a class
* Add node param type declaration
* Test the types
---
 types/index.d.ts | 15 ++++++++++++++-
 types/test.ts    | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/types/index.d.ts b/types/index.d.ts
index 00e04d427..bb0656a51 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -66,7 +66,6 @@ declare namespace Handlebars {
   export function K(): void;
   export function createFrame(object: any): any;
   export function blockParams(obj: any[], ids: any[]): any[];
-  export function Exception(message: string): void;
   export function log(level: number, obj: any): void;
   export function parse(input: string, options?: ParseOptions): hbs.AST.Program;
   export function parseWithoutProcessing(input: string, options?: ParseOptions): hbs.AST.Program;
@@ -87,6 +86,20 @@ declare namespace Handlebars {
 
   export function noConflict(): typeof Handlebars;
 
+  export class Exception {
+      constructor(message: string, node?: hbs.AST.Node);
+      description: string;
+      fileName: string;
+      lineNumber?: any;
+      endLineNumber?: any;
+      message: string;
+      name: string;
+      number: number;
+      stack?: string;
+      column?: any;
+      endColumn?: any;
+  }
+
   export class SafeString {
       constructor(str: string);
       toString(): string;
diff --git a/types/test.ts b/types/test.ts
index cef0d5981..fa9832683 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -201,3 +201,42 @@ function testParseWithoutProcessing() {
 
   const parsedTemplateWithoutOptions: hbs.AST.Program = Handlebars.parseWithoutProcessing('<p>Hello, my name is {{name}}.</p>');
 }
+
+function testExceptionTypings() {
+  // Test exception constructor with a single argument - message.
+  let exception: Handlebars.Exception = new Handlebars.Exception('message');
+
+  // Fields
+  let message: string = exception.message;
+  let lineNumber: number = exception.lineNumber;
+  let column: number = exception.column;
+  let endLineNumber: number = exception.endLineNumber;
+  let endColumn: number = exception.endColumn;
+  let description = exception.description;
+  let name: string = exception.name;
+  let fileName: string = exception.fileName;
+  let stack: string | undefined = exception.stack;
+}
+
+function testExceptionWithNodeTypings() {
+  // Test exception constructor with both arguments.
+  const exception: Handlebars.Exception = new Handlebars.Exception('message', {
+    type: 'MustacheStatement',
+    loc: {
+      source: 'source',
+      start: { line: 1, column: 5 },
+      end: { line: 10, column: 2 }
+    }
+  });
+
+  // Fields
+  let message: string = exception.message;
+  let lineNumber: number = exception.lineNumber;
+  let column: number = exception.column;
+  let endLineNumber: number = exception.endLineNumber;
+  let endColumn: number = exception.endColumn;
+  let description = exception.description;
+  let name: string = exception.name;
+  let fileName: string = exception.fileName;
+  let stack: string | undefined = exception.stack;
+}

From 7052e88068025aa5547f3c96d740283045bbbc2c Mon Sep 17 00:00:00 2001
From: Kabir Baidhya <kabirbaidhya@gmail.com>
Date: Mon, 28 Oct 2019 23:17:49 +0545
Subject: [PATCH 101/191] Resolve deprecation warning message from eslint while
 running eslint (#1586)

* Resolve eslint deprecation warning

  There was a DeprecationWarning message from eslint saying that `ecmaFeatures` property has
  been deprecated.
  Moved it under the `parserOptions` as per recommended here -
  https://eslint.org/docs/user-guide/migrating-to-2.0.0.
* Set escmaVersion = 6
* Use ES6 built-in global variables
* Remove flags in favor of ecmaVersion
---
 .eslintrc.js | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/.eslintrc.js b/.eslintrc.js
index 34daed78d..0b71556ff 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -4,22 +4,8 @@ module.exports = {
     "self": false
   },
   "env": {
-    "node": true
-  },
-  "ecmaFeatures": {
-    // Enabling features that can be implemented without polyfills. Want to avoid polyfills at this time.
-    "arrowFunctions": true,
-    "blockBindings": true,
-    "defaultParams": true,
-    "destructuring": true,
-    "modules": true,
-    "objectLiteralComputedProperties": true,
-    "objectLiteralDuplicateProperties": true,
-    "objectLiteralShorthandMethods": true,
-    "objectLiteralShorthandProperties": true,
-    "restParams": true,
-    "spread": true,
-    "templateStrings": true
+    "node": true,
+    "es6": true
   },
   "rules": {
     // overrides eslint:recommended defaults
@@ -124,6 +110,8 @@ module.exports = {
     "no-var": "warn"
   },
   "parserOptions": {
-    "sourceType": "module"
+    "sourceType": "module",
+    "ecmaVersion": 6,
+    "ecmaFeatures": {}
   }
-}
\ No newline at end of file
+}

From 088e61812a111f5c0ebf1e583852bc6640efcc3a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 28 Oct 2019 19:17:57 +0100
Subject: [PATCH 102/191] chore: add eslint-plugin-compat and eslint-plugin-es5

- tests are not compiled with babel and must thus be in
  es5
- we don't use polyfills, so we need to make sure no
  functions aren't used that are not supported by popular browsers. (like Object.assign in Safari and IE11)
- Boths are errors that usually only appear when running
  tests in SauceLabs, which happens only on _after_
  merging a PR.
---
 .eslintrc.js        |   2 +-
 package-lock.json   | 103 ++++++++++++++++++++++++++++++++++++++++++--
 package.json        |   2 +
 spec/.eslintrc      |   9 +++-
 spec/ast.js         |   4 +-
 spec/env/browser.js |   2 +-
 6 files changed, 113 insertions(+), 9 deletions(-)

diff --git a/.eslintrc.js b/.eslintrc.js
index 0b71556ff..3ba423055 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,5 +1,5 @@
 module.exports = {
-  "extends": "eslint:recommended",
+  "extends": ["eslint:recommended","plugin:compat/recommended"],
   "globals": {
     "self": false
   },
diff --git a/package-lock.json b/package-lock.json
index c884c05ed..d975d7515 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,17 @@
 {
   "name": "handlebars",
-  "version": "4.4.1",
+  "version": "4.4.5",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/runtime": {
+      "version": "7.6.3",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.6.3.tgz",
+      "integrity": "sha512-kq6anf9JGjW8Nt5rYfEuGRaEAaH1mkv3Bbu6rYvLOpPh/RusSJXuKPEAoZ7L7gybZkchE8+NV5g9vKF4AGAtsA==",
+      "requires": {
+        "regenerator-runtime": "^0.13.2"
+      }
+    },
     "@knappi/grunt-saucelabs": {
       "version": "9.0.2",
       "resolved": "https://registry.npmjs.org/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.2.tgz",
@@ -321,6 +329,11 @@
       "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c=",
       "dev": true
     },
+    "ast-metadata-inferer": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/ast-metadata-inferer/-/ast-metadata-inferer-0.1.1.tgz",
+      "integrity": "sha512-hc9w8Qrgg9Lf9iFcZVhNjUnhrd2BBpTlyCnegPVvCe6O0yMrF57a6Cmh7k+xUsfUOMh9wajOL5AsGOBNEyTCcw=="
+    },
     "ast-traverse": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ast-traverse/-/ast-traverse-0.1.1.tgz",
@@ -832,6 +845,16 @@
         "pako": "~0.2.0"
       }
     },
+    "browserslist": {
+      "version": "4.7.2",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.7.2.tgz",
+      "integrity": "sha512-uZavT/gZXJd2UTi9Ov7/Z340WOSQ3+m1iBVRUknf+okKxonL9P83S3ctiBDtuRmRu8PiCHjqyueqQ9HYlJhxiw==",
+      "requires": {
+        "caniuse-lite": "^1.0.30001004",
+        "electron-to-chromium": "^1.3.295",
+        "node-releases": "^1.1.38"
+      }
+    },
     "buffer": {
       "version": "4.9.1",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-4.9.1.tgz",
@@ -931,6 +954,16 @@
         }
       }
     },
+    "caniuse-db": {
+      "version": "1.0.30001005",
+      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001005.tgz",
+      "integrity": "sha512-MSRfm2N6FRDSpAJ00ipCuFe0CNink5JJOFzl4S7fLSBJdowhGq3uMxzkWGTjvvReo1PuWfK5YYJydJJ+9mJebw=="
+    },
+    "caniuse-lite": {
+      "version": "1.0.30001005",
+      "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001005.tgz",
+      "integrity": "sha512-g78miZm1Z5njjYR216a5812oPiLgV1ssndgGxITHWUopmjUrCswMisA0a2kSB7a0vZRox6JOKhM51+efmYN8Mg=="
+    },
     "caseless": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz",
@@ -1747,6 +1780,11 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=",
       "dev": true
     },
+    "electron-to-chromium": {
+      "version": "1.3.296",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.296.tgz",
+      "integrity": "sha512-s5hv+TSJSVRsxH190De66YHb50pBGTweT9XGWYu/LMR20KX6TsjFzObo36CjVAzM+PUeeKSBRtm/mISlCzeojQ=="
+    },
     "emojis-list": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-2.1.0.tgz",
@@ -2067,6 +2105,33 @@
         }
       }
     },
+    "eslint-plugin-compat": {
+      "version": "3.3.0",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-compat/-/eslint-plugin-compat-3.3.0.tgz",
+      "integrity": "sha512-QCgYy3pZ+zH10dkBJus1xER0359h1UhJjufhQRqp9Owm6BEoLZeSqxf2zINwL1OGao9Yc96xPYIW3nQj5HUryg==",
+      "requires": {
+        "@babel/runtime": "^7.4.5",
+        "ast-metadata-inferer": "^0.1.1",
+        "browserslist": "^4.6.3",
+        "caniuse-db": "^1.0.30000977",
+        "lodash.memoize": "4.1.2",
+        "mdn-browser-compat-data": "^0.0.84",
+        "semver": "^6.1.2"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
+    "eslint-plugin-es5": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-es5/-/eslint-plugin-es5-1.4.1.tgz",
+      "integrity": "sha512-kktkmkF2O7pnSZYgrMiYMbt3wCKRIiXePwILv8USDG95YgP0PzhIxSIROLLKmiQQ/Z6LuhDGWTHK04gnbXBvkg==",
+      "dev": true
+    },
     "eslint-scope": {
       "version": "3.7.3",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-3.7.3.tgz",
@@ -2295,8 +2360,7 @@
     "extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
-      "integrity": "sha1-+LETa0Bx+9jrFAr/hYsQGewpFfo=",
-      "dev": true
+      "integrity": "sha1-+LETa0Bx+9jrFAr/hYsQGewpFfo="
     },
     "extend-shallow": {
       "version": "3.0.2",
@@ -5129,6 +5193,11 @@
       "integrity": "sha1-W/Rejkm6QYnhfUgnid/RW9FAt7Y=",
       "dev": true
     },
+    "lodash.memoize": {
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
+      "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4="
+    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
@@ -5220,6 +5289,14 @@
         "pretty-bytes": "^1.0.0"
       }
     },
+    "mdn-browser-compat-data": {
+      "version": "0.0.84",
+      "resolved": "https://registry.npmjs.org/mdn-browser-compat-data/-/mdn-browser-compat-data-0.0.84.tgz",
+      "integrity": "sha512-fAznuGNaQMQiWLVf+gyp33FaABTglYWqMT7JqvH+4RZn2UQPD12gbMqxwP9m0lj8AAbNpu5/kD6n4Ox1SOffpw==",
+      "requires": {
+        "extend": "3.0.2"
+      }
+    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -5622,6 +5699,21 @@
         }
       }
     },
+    "node-releases": {
+      "version": "1.1.39",
+      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.39.tgz",
+      "integrity": "sha512-8MRC/ErwNCHOlAFycy9OPca46fQYUjbJRDcZTHVWIGXIjYLM73k70vv3WkYutVnM4cCo4hE0MqBVVZjP6vjISA==",
+      "requires": {
+        "semver": "^6.3.0"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "6.3.0",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+        }
+      }
+    },
     "nomnom": {
       "version": "0.4.3",
       "resolved": "https://registry.npmjs.org/nomnom/-/nomnom-0.4.3.tgz",
@@ -6746,6 +6838,11 @@
         "through": "~2.3.8"
       }
     },
+    "regenerator-runtime": {
+      "version": "0.13.3",
+      "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.3.tgz",
+      "integrity": "sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw=="
+    },
     "regex-cache": {
       "version": "0.4.4",
       "resolved": "https://registry.npmjs.org/regex-cache/-/regex-cache-0.4.4.tgz",
diff --git a/package.json b/package.json
index 40391a611..04f8cb4a3 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "node": ">=0.4.7"
   },
   "dependencies": {
+    "eslint-plugin-compat": "^3.3.0",
     "neo-async": "^2.6.0",
     "optimist": "^0.6.1",
     "source-map": "^0.6.1"
@@ -37,6 +38,7 @@
     "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
+    "eslint-plugin-es5": "^1.4.1",
     "grunt": "^1.0.3",
     "grunt-babel": "^5.0.0",
     "grunt-bg-shell": "^2.3.3",
diff --git a/spec/.eslintrc b/spec/.eslintrc
index 21871d52f..421bd00d2 100644
--- a/spec/.eslintrc
+++ b/spec/.eslintrc
@@ -1,14 +1,19 @@
 {
+  "extends": [
+    "../.eslintrc.js",
+    "plugin:es5/no-es2015"
+  ],
+  "plugins": [
+    "es5"
+  ],
   "globals": {
     "CompilerContext": true,
     "Handlebars": true,
     "handlebarsEnv": true,
-
     "shouldCompileTo": true,
     "shouldCompileToWithPartials": true,
     "shouldThrow": true,
     "compileWithPartials": true,
-
     "console": true,
     "require": true,
     "suite": true,
diff --git a/spec/ast.js b/spec/ast.js
index 09034739f..ffd0a9589 100644
--- a/spec/ast.js
+++ b/spec/ast.js
@@ -126,7 +126,7 @@ describe('ast', function() {
   describe('whitespace control', function() {
     describe('parse', function() {
       it('mustache', function() {
-        let ast = Handlebars.parse('  {{~comment~}} ');
+        var ast = Handlebars.parse('  {{~comment~}} ');
 
         equals(ast.body[0].value, '');
         equals(ast.body[2].value, '');
@@ -142,7 +142,7 @@ describe('ast', function() {
 
     describe('parseWithoutProcessing', function() {
       it('mustache', function() {
-        let ast = Handlebars.parseWithoutProcessing('  {{~comment~}} ');
+        var ast = Handlebars.parseWithoutProcessing('  {{~comment~}} ');
 
         equals(ast.body[0].value, '  ');
         equals(ast.body[2].value, ' ');
diff --git a/spec/env/browser.js b/spec/env/browser.js
index 8b89207e9..9e54a3977 100644
--- a/spec/env/browser.js
+++ b/spec/env/browser.js
@@ -9,7 +9,7 @@ var filename = 'dist/handlebars.js';
 if (global.minimizedTest) {
   filename = 'dist/handlebars.min.js';
 }
-var distHandlebars = fs.readFileSync(require.resolve(`../../${filename}`), 'utf-8');
+var distHandlebars = fs.readFileSync(require.resolve('../../' + filename), 'utf-8');
 vm.runInThisContext(distHandlebars, filename);
 
 global.CompilerContext = {

From a2430678830fa4f2fc207fac1453e805908f60de Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 28 Oct 2019 19:47:08 +0100
Subject: [PATCH 103/191] Update release notes

---
 release-notes.md | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 4d5bfbf68..7f4275f8e 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,25 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.5...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.0...master)
+
+## v4.5.0 - October 28th, 2019
+Features / Improvements
+- Add method Handlebars.parseWithoutProcessing (#1584) - 62ed3c2
+- add guard to if & unless helpers (#1549)
+- show source location for the strict lookup exceptions - feb60f8
+
+Bugfixes:
+- Use objects for hash value tracking - 7fcf9d2
+
+Chore:
+- Resolve deprecation warning message from eslint while running eslint (#1586) - 7052e88
+- chore: add eslint-plugin-compat and eslint-plugin-es5 - 088e618
+
+Compatibility notes:
+- No compatibility issues are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.4.5...v4.5.0)
 
 ## v4.4.5 - October 20th, 2019
 Bugfixes: 

From b24797da01afd4e849fdb315dea8335792974522 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 28 Oct 2019 19:47:51 +0100
Subject: [PATCH 104/191] v4.5.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index de0d3edf7..d14dea967 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.5",
+  "version": "4.5.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 5c03a0795..2888f1c65 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.4.5</version>
+		<version>4.5.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index db8c6a638..e0f6b0985 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.5",
+  "version": "4.5.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index eccdb4753..c3b1384b0 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.4.5';
+export const VERSION = '4.5.0';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 04f8cb4a3..90a75d006 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.4.5",
+  "version": "4.5.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 5e9d17f8faf770efb892a526603a728e480a9349 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 29 Oct 2019 05:17:03 +0100
Subject: [PATCH 105/191] fix: move "eslint-plugin-compat" to devDependencies

---
 package-lock.json | 34 ++++++++++++++++++++++++----------
 package.json      |  2 +-
 2 files changed, 25 insertions(+), 11 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index d975d7515..332d8fb1b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.4.5",
+  "version": "4.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -8,6 +8,7 @@
       "version": "7.6.3",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.6.3.tgz",
       "integrity": "sha512-kq6anf9JGjW8Nt5rYfEuGRaEAaH1mkv3Bbu6rYvLOpPh/RusSJXuKPEAoZ7L7gybZkchE8+NV5g9vKF4AGAtsA==",
+      "dev": true,
       "requires": {
         "regenerator-runtime": "^0.13.2"
       }
@@ -332,7 +333,8 @@
     "ast-metadata-inferer": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/ast-metadata-inferer/-/ast-metadata-inferer-0.1.1.tgz",
-      "integrity": "sha512-hc9w8Qrgg9Lf9iFcZVhNjUnhrd2BBpTlyCnegPVvCe6O0yMrF57a6Cmh7k+xUsfUOMh9wajOL5AsGOBNEyTCcw=="
+      "integrity": "sha512-hc9w8Qrgg9Lf9iFcZVhNjUnhrd2BBpTlyCnegPVvCe6O0yMrF57a6Cmh7k+xUsfUOMh9wajOL5AsGOBNEyTCcw==",
+      "dev": true
     },
     "ast-traverse": {
       "version": "0.1.1",
@@ -849,6 +851,7 @@
       "version": "4.7.2",
       "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.7.2.tgz",
       "integrity": "sha512-uZavT/gZXJd2UTi9Ov7/Z340WOSQ3+m1iBVRUknf+okKxonL9P83S3ctiBDtuRmRu8PiCHjqyueqQ9HYlJhxiw==",
+      "dev": true,
       "requires": {
         "caniuse-lite": "^1.0.30001004",
         "electron-to-chromium": "^1.3.295",
@@ -957,12 +960,14 @@
     "caniuse-db": {
       "version": "1.0.30001005",
       "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30001005.tgz",
-      "integrity": "sha512-MSRfm2N6FRDSpAJ00ipCuFe0CNink5JJOFzl4S7fLSBJdowhGq3uMxzkWGTjvvReo1PuWfK5YYJydJJ+9mJebw=="
+      "integrity": "sha512-MSRfm2N6FRDSpAJ00ipCuFe0CNink5JJOFzl4S7fLSBJdowhGq3uMxzkWGTjvvReo1PuWfK5YYJydJJ+9mJebw==",
+      "dev": true
     },
     "caniuse-lite": {
       "version": "1.0.30001005",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001005.tgz",
-      "integrity": "sha512-g78miZm1Z5njjYR216a5812oPiLgV1ssndgGxITHWUopmjUrCswMisA0a2kSB7a0vZRox6JOKhM51+efmYN8Mg=="
+      "integrity": "sha512-g78miZm1Z5njjYR216a5812oPiLgV1ssndgGxITHWUopmjUrCswMisA0a2kSB7a0vZRox6JOKhM51+efmYN8Mg==",
+      "dev": true
     },
     "caseless": {
       "version": "0.12.0",
@@ -1783,7 +1788,8 @@
     "electron-to-chromium": {
       "version": "1.3.296",
       "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.296.tgz",
-      "integrity": "sha512-s5hv+TSJSVRsxH190De66YHb50pBGTweT9XGWYu/LMR20KX6TsjFzObo36CjVAzM+PUeeKSBRtm/mISlCzeojQ=="
+      "integrity": "sha512-s5hv+TSJSVRsxH190De66YHb50pBGTweT9XGWYu/LMR20KX6TsjFzObo36CjVAzM+PUeeKSBRtm/mISlCzeojQ==",
+      "dev": true
     },
     "emojis-list": {
       "version": "2.1.0",
@@ -2109,6 +2115,7 @@
       "version": "3.3.0",
       "resolved": "https://registry.npmjs.org/eslint-plugin-compat/-/eslint-plugin-compat-3.3.0.tgz",
       "integrity": "sha512-QCgYy3pZ+zH10dkBJus1xER0359h1UhJjufhQRqp9Owm6BEoLZeSqxf2zINwL1OGao9Yc96xPYIW3nQj5HUryg==",
+      "dev": true,
       "requires": {
         "@babel/runtime": "^7.4.5",
         "ast-metadata-inferer": "^0.1.1",
@@ -2122,7 +2129,8 @@
         "semver": {
           "version": "6.3.0",
           "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
         }
       }
     },
@@ -2360,7 +2368,8 @@
     "extend": {
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
-      "integrity": "sha1-+LETa0Bx+9jrFAr/hYsQGewpFfo="
+      "integrity": "sha1-+LETa0Bx+9jrFAr/hYsQGewpFfo=",
+      "dev": true
     },
     "extend-shallow": {
       "version": "3.0.2",
@@ -5196,7 +5205,8 @@
     "lodash.memoize": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/lodash.memoize/-/lodash.memoize-4.1.2.tgz",
-      "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4="
+      "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=",
+      "dev": true
     },
     "longest": {
       "version": "1.0.1",
@@ -5293,6 +5303,7 @@
       "version": "0.0.84",
       "resolved": "https://registry.npmjs.org/mdn-browser-compat-data/-/mdn-browser-compat-data-0.0.84.tgz",
       "integrity": "sha512-fAznuGNaQMQiWLVf+gyp33FaABTglYWqMT7JqvH+4RZn2UQPD12gbMqxwP9m0lj8AAbNpu5/kD6n4Ox1SOffpw==",
+      "dev": true,
       "requires": {
         "extend": "3.0.2"
       }
@@ -5703,6 +5714,7 @@
       "version": "1.1.39",
       "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.39.tgz",
       "integrity": "sha512-8MRC/ErwNCHOlAFycy9OPca46fQYUjbJRDcZTHVWIGXIjYLM73k70vv3WkYutVnM4cCo4hE0MqBVVZjP6vjISA==",
+      "dev": true,
       "requires": {
         "semver": "^6.3.0"
       },
@@ -5710,7 +5722,8 @@
         "semver": {
           "version": "6.3.0",
           "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
-          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw=="
+          "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
+          "dev": true
         }
       }
     },
@@ -6841,7 +6854,8 @@
     "regenerator-runtime": {
       "version": "0.13.3",
       "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.3.tgz",
-      "integrity": "sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw=="
+      "integrity": "sha512-naKIZz2GQ8JWh///G7L3X6LaQUAMp2lvb1rvwwsURe/VXwD6VMfr+/1NuNw3ag8v2kY1aQ/go5SNn79O9JU7yw==",
+      "dev": true
     },
     "regex-cache": {
       "version": "0.4.4",
diff --git a/package.json b/package.json
index 90a75d006..b1425af22 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,6 @@
     "node": ">=0.4.7"
   },
   "dependencies": {
-    "eslint-plugin-compat": "^3.3.0",
     "neo-async": "^2.6.0",
     "optimist": "^0.6.1",
     "source-map": "^0.6.1"
@@ -38,6 +37,7 @@
     "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
+    "eslint-plugin-compat": "^3.3.0",
     "eslint-plugin-es5": "^1.4.1",
     "grunt": "^1.0.3",
     "grunt-babel": "^5.0.0",

From b75e3e1f403f0564a43fc9ffa759fbe1afccd1c1 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 29 Oct 2019 05:41:43 +0100
Subject: [PATCH 106/191] Update release notes

---
 release-notes.md | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 7f4275f8e..11b1d0146 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,18 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.1...master)
+
+## v4.5.1 - October 29th, 2019
+Bugfixs
+
+- fix: move "eslint-plugin-compat" to devDependencies - 5e9d17f (#1589)
+
+Compatibility notes:
+- No compatibility issues are to be expected
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.0...v4.5.1)
 
 ## v4.5.0 - October 28th, 2019
 Features / Improvements

From 7ef86173abb446cf564ad6dc2646a4c361e2ab9f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 29 Oct 2019 05:42:23 +0100
Subject: [PATCH 107/191] v4.5.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index d14dea967..fada3225e 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.0",
+  "version": "4.5.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 2888f1c65..d7a2dffec 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.5.0</version>
+		<version>4.5.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index e0f6b0985..a13ff027c 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.0",
+  "version": "4.5.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index c3b1384b0..fcf71a2b9 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.5.0';
+export const VERSION = '4.5.1';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index b1425af22..2cb199f32 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.5.0",
+  "version": "4.5.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From c2ac79c9705443d5fcabf87cda14392058b9ac56 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 13 Nov 2019 21:38:32 +0100
Subject: [PATCH 108/191] test: add fluent API for testing Handlebars

use "expectTemplate(template)....toCompileTo(output)"
---
 spec/.eslintrc     |  1 +
 spec/env/common.js | 86 ++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 84 insertions(+), 3 deletions(-)

diff --git a/spec/.eslintrc b/spec/.eslintrc
index 421bd00d2..34319f8c1 100644
--- a/spec/.eslintrc
+++ b/spec/.eslintrc
@@ -13,6 +13,7 @@
     "shouldCompileTo": true,
     "shouldCompileToWithPartials": true,
     "shouldThrow": true,
+    "expectTemplate": true,
     "compileWithPartials": true,
     "console": true,
     "require": true,
diff --git a/spec/env/common.js b/spec/env/common.js
index 14d302aa9..9523eaeb2 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -1,4 +1,6 @@
-var global = (function() { return this; }());
+var global = (function() {
+  return this;
+}());
 
 var AssertError;
 if (Error.captureStackTrace) {
@@ -16,10 +18,16 @@ if (Error.captureStackTrace) {
   AssertError = Error;
 }
 
+/**
+ * @deprecated Use "expectTemplate(template)...toCompileTo(output)" instead
+ */
 global.shouldCompileTo = function(string, hashOrArray, expected, message) {
   shouldCompileToWithPartials(string, hashOrArray, false, expected, message);
 };
 
+/**
+ * @deprecated Use "expectTemplate(template)...toCompileTo(output)" instead
+ */
 global.shouldCompileToWithPartials = function shouldCompileToWithPartials(string, hashOrArray, partials, expected, message) {
   var result = compileWithPartials(string, hashOrArray, partials);
   if (result !== expected) {
@@ -27,6 +35,9 @@ global.shouldCompileToWithPartials = function shouldCompileToWithPartials(string
   }
 };
 
+/**
+ * @deprecated Use "expectTemplate(template)...toCompileTo(output)" instead
+ */
 global.compileWithPartials = function(string, hashOrArray, partials) {
   var template,
       ary,
@@ -36,8 +47,8 @@ global.compileWithPartials = function(string, hashOrArray, partials) {
     delete hashOrArray.hash;
   } else if (Object.prototype.toString.call(hashOrArray) === '[object Array]') {
     ary = [];
-    ary.push(hashOrArray[0]);
-    ary.push({ helpers: hashOrArray[1], partials: hashOrArray[2] });
+    ary.push(hashOrArray[0]); // input
+    ary.push({helpers: hashOrArray[1], partials: hashOrArray[2]});
     options = typeof hashOrArray[3] === 'object' ? hashOrArray[3] : {compat: hashOrArray[3]};
     if (hashOrArray[4] != null) {
       options.data = !!hashOrArray[4];
@@ -75,3 +86,72 @@ global.shouldThrow = function(callback, type, msg) {
     throw new AssertError('It failed to throw', shouldThrow);
   }
 };
+
+
+global.expectTemplate = function(templateAsString) {
+  return new HandlebarsTestBench(templateAsString);
+};
+
+
+function HandlebarsTestBench(templateAsString) {
+  this.templateAsString = templateAsString;
+  this.helpers = {};
+  this.partials = {};
+  this.input = {};
+  this.message = 'Template' + templateAsString + ' does not evaluate to expected output';
+  this.compileOptions = {};
+  this.runtimeOptions = {};
+}
+
+HandlebarsTestBench.prototype.withInput = function(input) {
+  this.input = input;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withHelper = function(name, helperFunction) {
+  this.helpers[name] = helperFunction;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withPartial = function(name, partialAsString) {
+  this.partials[name] = partialAsString;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withCompileOptions = function(compileOptions) {
+  this.compileOptions = compileOptions;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withRuntimeOptions = function(runtimeOptions) {
+  this.runtimeOptions = runtimeOptions;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withMessage = function(message) {
+  this.message = message;
+  return this;
+};
+
+HandlebarsTestBench.prototype.toCompileTo = function(expectedOutputAsString) {
+  var self = this;
+  var compile = Object.keys(this.partials).length > 0
+      ? CompilerContext.compileWithPartial
+      : CompilerContext.compile;
+
+  var combinedRuntimeOptions = {};
+  Object.keys(this.runtimeOptions).forEach(function(key) {
+    combinedRuntimeOptions[key] = self.runtimeOptions[key];
+  });
+  combinedRuntimeOptions.helpers = this.helpers;
+  combinedRuntimeOptions.partials = this.partials;
+
+  var template = compile(this.templateAsString, this.compileOptions);
+  var output = template(this.input, combinedRuntimeOptions);
+
+  if (output !== expectedOutputAsString) {
+    // Error message formatted so that IntelliJ-Idea shows "diff"-button
+    // https://stackoverflow.com/a/10945655/4251384
+    throw new AssertError(this.message + '\nexpected:' + expectedOutputAsString + 'but was:' + output);
+  }
+};

From d54137810a49939fd2ad01a91a34e182ece4528e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 13 Nov 2019 21:41:36 +0100
Subject: [PATCH 109/191] fix: use String(field) in lookup when checking for
 "constructor"

closes #1603
---
 lib/handlebars/helpers/lookup.js |  2 +-
 spec/security.js                 | 28 +++++++++++++++++++++++++---
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index dcd585178..0654cc393 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -3,7 +3,7 @@ export default function(instance) {
     if (!obj) {
       return obj;
     }
-    if (field === 'constructor' && !obj.propertyIsEnumerable(field)) {
+    if (String(field) === 'constructor' && !obj.propertyIsEnumerable(field)) {
       return undefined;
     }
     return obj[field];
diff --git a/spec/security.js b/spec/security.js
index c50bda6d0..80b8e23c2 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -1,11 +1,26 @@
 describe('security issues', function() {
     describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
         it('should not allow constructors to be accessed', function() {
-            shouldCompileTo('{{constructor.name}}', {}, '');
-            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {}, '');
+            expectTemplate('{{lookup (lookup this "constructor") "name"}}')
+                .withInput({})
+                .toCompileTo('');
+
+            expectTemplate('{{constructor.name}}')
+                .withInput({})
+                .toCompileTo('');
         });
 
-        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+        it('GH-1603: should not allow constructors to be accessed (lookup via toString)', function() {
+          expectTemplate('{{lookup (lookup this (list "constructor")) "name"}}')
+              .withInput({})
+              .withHelper('list', function(element) {
+                return [element];
+              })
+              .toCompileTo('');
+        });
+
+
+      it('should allow the "constructor" property to be accessed if it is enumerable', function() {
             shouldCompileTo('{{constructor.name}}', {'constructor': {
                 'name': 'here we go'
             }}, 'here we go');
@@ -14,6 +29,13 @@ describe('security issues', function() {
             }}, 'here we go');
         });
 
+        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {'constructor': {
+                    'name': 'here we go'
+                }}, 'here we go');
+        });
+
+
         it('should allow prototype properties that are not constructors', function() {
             function TestClass() {
             }

From 6914090086cf9e108c13637395a3f92b8887a585 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 13 Nov 2019 22:06:51 +0100
Subject: [PATCH 110/191] Update release notes

---
 release-notes.md | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 11b1d0146..3eefabe89 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,18 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.2...master)
+
+## v4.5.2 - November 13th, 2019
+# Bugfixes
+
+- fix: use String(field) in lookup when checking for "constructor" - d541378
+- test: add fluent API for testing Handlebars - c2ac79c
+
+Compatibility notes:
+- no incompatibility are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.1...v4.5.2)
 
 ## v4.5.1 - October 29th, 2019
 Bugfixs

From 8de121d21c88a6ab877e3a0eec9daaac483f3bf0 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 13 Nov 2019 22:07:27 +0100
Subject: [PATCH 111/191] v4.5.2

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index fada3225e..53453c96d 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.1",
+  "version": "4.5.2",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index d7a2dffec..a4ec49b01 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.5.1</version>
+		<version>4.5.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index a13ff027c..1fcee3eed 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.1",
+  "version": "4.5.2",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index fcf71a2b9..adb1547a5 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.5.1';
+export const VERSION = '4.5.2';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 2cb199f32..d753c9b2a 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.5.1",
+  "version": "4.5.2",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From c02b05fa819f46bb66c878bebc6e8006408ebd5c Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 10 Nov 2019 16:34:38 +0100
Subject: [PATCH 112/191] fix: use !== 0 instead of != 0

---
 tasks/test.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tasks/test.js b/tasks/test.js
index 6bee3920a..a17fc2a22 100644
--- a/tasks/test.js
+++ b/tasks/test.js
@@ -33,7 +33,7 @@ module.exports = function(grunt) {
 
     var runner = childProcess.fork('./spec/env/runner', [], {stdio: 'inherit'});
     runner.on('close', function(code) {
-      if (code != 0) {
+      if (code !== 0) {
         grunt.fatal(code + ' tests failed');
       }
       done();
@@ -55,7 +55,7 @@ module.exports = function(grunt) {
 
     var runner = childProcess.fork('./spec/env/runner', ['--min'], {stdio: 'inherit'});
     runner.on('close', function(code) {
-      if (code != 0) {
+      if (code !== 0) {
         grunt.fatal(code + ' tests failed');
       }
       done();

From 93e284ed9be1e38c5e6945f15af1ccd689f2ada6 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 10 Nov 2019 16:00:43 +0100
Subject: [PATCH 113/191] chore: add chai and dirty-chai for better test
 assertions

---
 package-lock.json | 61 ++++++++++++++++++++++++++++++++++++++++++++++-
 package.json      |  2 ++
 spec/env/node.js  |  6 +++++
 spec/index.html   |  2 ++
 4 files changed, 70 insertions(+), 1 deletion(-)

diff --git a/package-lock.json b/package-lock.json
index 332d8fb1b..eb7b05bd1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.0",
+  "version": "4.5.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -324,6 +324,12 @@
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU=",
       "dev": true
     },
+    "assertion-error": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
+      "integrity": "sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==",
+      "dev": true
+    },
     "assign-symbols": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/assign-symbols/-/assign-symbols-1.0.0.tgz",
@@ -985,6 +991,20 @@
         "lazy-cache": "^1.0.3"
       }
     },
+    "chai": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
+      "integrity": "sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==",
+      "dev": true,
+      "requires": {
+        "assertion-error": "^1.1.0",
+        "check-error": "^1.0.2",
+        "deep-eql": "^3.0.1",
+        "get-func-name": "^2.0.0",
+        "pathval": "^1.1.0",
+        "type-detect": "^4.0.5"
+      }
+    },
     "chalk": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
@@ -1004,6 +1024,12 @@
       "integrity": "sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=",
       "dev": true
     },
+    "check-error": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
+      "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
+      "dev": true
+    },
     "chokidar": {
       "version": "1.5.2",
       "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-1.5.2.tgz",
@@ -1467,6 +1493,15 @@
       "integrity": "sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=",
       "dev": true
     },
+    "deep-eql": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/deep-eql/-/deep-eql-3.0.1.tgz",
+      "integrity": "sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==",
+      "dev": true,
+      "requires": {
+        "type-detect": "^4.0.0"
+      }
+    },
     "deep-is": {
       "version": "0.1.3",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.3.tgz",
@@ -1619,6 +1654,12 @@
       "integrity": "sha1-gAwN0eCov7yVg1wgKtIg/jF+WhI=",
       "dev": true
     },
+    "dirty-chai": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/dirty-chai/-/dirty-chai-2.0.1.tgz",
+      "integrity": "sha512-ys79pWKvDMowIDEPC6Fig8d5THiC0DJ2gmTeGzVAoEH18J8OzLud0Jh7I9IWg3NSk8x2UocznUuFmfHCXYZx9w==",
+      "dev": true
+    },
     "doctrine": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/doctrine/-/doctrine-2.1.0.tgz",
@@ -3287,6 +3328,12 @@
       "integrity": "sha1-+Xj6TJDR3+f/LWvtoqUV5xO9z0o=",
       "dev": true
     },
+    "get-func-name": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.0.tgz",
+      "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=",
+      "dev": true
+    },
     "get-stdin": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-4.0.1.tgz",
@@ -6234,6 +6281,12 @@
         "pinkie-promise": "^2.0.0"
       }
     },
+    "pathval": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/pathval/-/pathval-1.1.0.tgz",
+      "integrity": "sha1-uULm1L3mUwBe9rcTYd74cn0GReA=",
+      "dev": true
+    },
     "pbkdf2-compat": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/pbkdf2-compat/-/pbkdf2-compat-2.0.1.tgz",
@@ -8162,6 +8215,12 @@
         "prelude-ls": "~1.1.2"
       }
     },
+    "type-detect": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
+      "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
+      "dev": true
+    },
     "type-is": {
       "version": "1.6.16",
       "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
diff --git a/package.json b/package.json
index d753c9b2a..fdac39237 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,8 @@
     "babel-loader": "^5.0.0",
     "babel-runtime": "^5.1.10",
     "benchmark": "~1.0",
+    "chai": "^4.2.0",
+    "dirty-chai": "^2.0.1",
     "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
     "eco": "~1.1.0-rc-3",
diff --git a/spec/env/node.js b/spec/env/node.js
index 881609d2e..8b97c4d53 100644
--- a/spec/env/node.js
+++ b/spec/env/node.js
@@ -1,5 +1,11 @@
 require('./common');
 
+var chai = require('chai');
+var dirtyChai = require('dirty-chai');
+
+chai.use(dirtyChai);
+global.expect = chai.expect;
+
 global.Handlebars = require('../../lib');
 
 global.CompilerContext = {
diff --git a/spec/index.html b/spec/index.html
index 5db2146ad..3528b78d6 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -20,6 +20,8 @@
       }
     </script>
     <script src="/node_modules/mocha/mocha.js"></script>
+    <script src="/node_modules/chai/chai.js"></script>
+    <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
     <script>
       mocha.setup('bdd');
     </script>

From 93516a0b07026ebd23c84fddf270a0c8b570bc59 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 14 Nov 2019 08:28:15 +0100
Subject: [PATCH 114/191] test: add sinon.js for spies, deprecate current
 assertions

- the goal is to get overall cleaner test.
- chai and sinon are standard libraries for testing
  assertions and spies. We should not use custom ones.
---
 package-lock.json     | 120 +++++++++++++++++++++++++++++++++++++++++-
 package.json          |   1 +
 spec/.eslintrc        |   9 ++--
 spec/amd-runtime.html |   5 +-
 spec/amd.html         |   5 +-
 spec/env/browser.js   |   9 ++++
 spec/env/common.js    |   8 +++
 spec/env/node.js      |   3 ++
 spec/index.html       |   5 +-
 spec/security.js      |   6 +--
 spec/umd-runtime.html |   5 +-
 spec/umd.html         |   6 ++-
 12 files changed, 169 insertions(+), 13 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index eb7b05bd1..6ed12f6bb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.1",
+  "version": "4.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -83,6 +83,50 @@
         }
       }
     },
+    "@sinonjs/commons": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-1.6.0.tgz",
+      "integrity": "sha512-w4/WHG7C4WWFyE5geCieFJF6MZkbW4VAriol5KlmQXpAQdxvV0p26sqNZOW6Qyw6Y0l9K4g+cHvvczR2sEEpqg==",
+      "dev": true,
+      "requires": {
+        "type-detect": "4.0.8"
+      }
+    },
+    "@sinonjs/formatio": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/@sinonjs/formatio/-/formatio-3.2.2.tgz",
+      "integrity": "sha512-B8SEsgd8gArBLMD6zpRw3juQ2FVSsmdd7qlevyDqzS9WTCtvF55/gAL+h6gue8ZvPYcdiPdvueM/qm//9XzyTQ==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1",
+        "@sinonjs/samsam": "^3.1.0"
+      }
+    },
+    "@sinonjs/samsam": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/@sinonjs/samsam/-/samsam-3.3.3.tgz",
+      "integrity": "sha512-bKCMKZvWIjYD0BLGnNrxVuw4dkWCYsLqFOUWw8VgKF/+5Y+mE7LfHWPIYoDXowH+3a9LsWDMo0uAP8YDosPvHQ==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.3.0",
+        "array-from": "^2.1.1",
+        "lodash": "^4.17.15"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        }
+      }
+    },
+    "@sinonjs/text-encoding": {
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/@sinonjs/text-encoding/-/text-encoding-0.7.1.tgz",
+      "integrity": "sha512-+iTbntw2IZPb/anVDbypzfQa+ay64MW0Zo8aJ8gZPWMMK6/OubMVb6lUPMagqjOPnmtauXnFCACVl3O7ogjeqQ==",
+      "dev": true
+    },
     "@types/parsimmon": {
       "version": "1.10.0",
       "resolved": "https://registry.npmjs.org/@types/parsimmon/-/parsimmon-1.10.0.tgz",
@@ -271,6 +315,12 @@
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=",
       "dev": true
     },
+    "array-from": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/array-from/-/array-from-2.1.1.tgz",
+      "integrity": "sha1-z+nYwmYoudxa7MYqn12PHzUsEZU=",
+      "dev": true
+    },
     "array-slice": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/array-slice/-/array-slice-1.1.0.tgz",
@@ -4821,6 +4871,12 @@
         "verror": "1.10.0"
       }
     },
+    "just-extend": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/just-extend/-/just-extend-4.0.2.tgz",
+      "integrity": "sha512-FrLwOgm+iXrPV+5zDU6Jqu4gCRXbWEQg2O3SKONsWE4w7AXFRkryS53bpWdaL9cNol+AmR3AEYz6kn+o0fCPnw==",
+      "dev": true
+    },
     "kind-of": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
@@ -5255,6 +5311,12 @@
       "integrity": "sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=",
       "dev": true
     },
+    "lolex": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/lolex/-/lolex-4.2.0.tgz",
+      "integrity": "sha512-gKO5uExCXvSm6zbF562EvM+rd1kQDnB9AZBbiQVzf1ZmdDpxUSvpnAaVOP83N/31mRK8Ml8/VE8DMvsAZQ+7wg==",
+      "dev": true
+    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
@@ -5708,6 +5770,36 @@
       "integrity": "sha1-ozeKdpbOfSI+iPybdkvX7xCJ42Y=",
       "dev": true
     },
+    "nise": {
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/nise/-/nise-1.5.2.tgz",
+      "integrity": "sha512-/6RhOUlicRCbE9s+94qCUsyE+pKlVJ5AhIv+jEE7ESKwnbXqulKZ1FYU+XAtHHWE9TinYvAxDUJAb912PwPoWA==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/formatio": "^3.2.1",
+        "@sinonjs/text-encoding": "^0.7.1",
+        "just-extend": "^4.0.2",
+        "lolex": "^4.1.0",
+        "path-to-regexp": "^1.7.0"
+      },
+      "dependencies": {
+        "isarray": {
+          "version": "0.0.1",
+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
+          "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=",
+          "dev": true
+        },
+        "path-to-regexp": {
+          "version": "1.8.0",
+          "resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
+          "integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
+          "dev": true,
+          "requires": {
+            "isarray": "0.0.1"
+          }
+        }
+      }
+    },
     "node-libs-browser": {
       "version": "0.7.0",
       "resolved": "https://registry.npmjs.org/node-libs-browser/-/node-libs-browser-0.7.0.tgz",
@@ -7384,6 +7476,32 @@
       "integrity": "sha1-Krt1qt453rXMgVzhDmGRFkhQuvA=",
       "dev": true
     },
+    "sinon": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-7.5.0.tgz",
+      "integrity": "sha512-AoD0oJWerp0/rY9czP/D6hDTTUYGpObhZjMpd7Cl/A6+j0xBE+ayL/ldfggkBXUs0IkvIiM1ljM8+WkOc5k78Q==",
+      "dev": true,
+      "requires": {
+        "@sinonjs/commons": "^1.4.0",
+        "@sinonjs/formatio": "^3.2.1",
+        "@sinonjs/samsam": "^3.3.3",
+        "diff": "^3.5.0",
+        "lolex": "^4.2.0",
+        "nise": "^1.5.2",
+        "supports-color": "^5.5.0"
+      },
+      "dependencies": {
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
+      }
+    },
     "slash": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
diff --git a/package.json b/package.json
index fdac39237..426b40cb2 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "mock-stdin": "^0.3.0",
     "mustache": "^2.1.3",
     "semver": "^5.0.1",
+    "sinon": "^7.5.0",
     "typescript": "^3.4.3",
     "underscore": "^1.5.1",
     "webpack": "^1.12.6",
diff --git a/spec/.eslintrc b/spec/.eslintrc
index 34319f8c1..8d4ed7a2e 100644
--- a/spec/.eslintrc
+++ b/spec/.eslintrc
@@ -28,15 +28,18 @@
     "stop": true,
     "ok": true,
     "strictEqual": true,
-    "define": true
+    "define": true,
+    "expect": true,
+    "chai": true
   },
   "env": {
     "mocha": true
   },
   "rules": {
     // Disabling for tests, for now.
-    "no-path-concat": 0,
+    "no-path-concat": "off",
 
-    "no-var": 0
+    "no-var": "off",
+    "dot-notation": "off"
   }
 }
\ No newline at end of file
diff --git a/spec/amd-runtime.html b/spec/amd-runtime.html
index 7cc64f190..fc413bd67 100644
--- a/spec/amd-runtime.html
+++ b/spec/amd-runtime.html
@@ -18,11 +18,14 @@
         document.documentElement.className = 'headless';
       }
     </script>
+    <script src="/node_modules/sinon/pkg/sinon.js"></script>
+    <script src="/node_modules/chai/chai.js"></script>
+    <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
     <script src="/node_modules/mocha/mocha.js"></script>
     <script>
+      window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-
     <script src="/spec/env/json2.js"></script>
     <script src="/spec/env/require.js"></script>
 
diff --git a/spec/amd.html b/spec/amd.html
index 1149dc706..9ec44e686 100644
--- a/spec/amd.html
+++ b/spec/amd.html
@@ -19,11 +19,14 @@
         document.documentElement.className = 'headless';
       }
     </script>
+    <script src="/node_modules/sinon/pkg/sinon.js"></script>
+    <script src="/node_modules/chai/chai.js"></script>
+    <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
     <script src="/node_modules/mocha/mocha.js"></script>
     <script>
+      window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-
     <script src="/spec/env/json2.js"></script>
     <script src="/spec/env/require.js"></script>
 
diff --git a/spec/env/browser.js b/spec/env/browser.js
index 9e54a3977..d1dab0d5e 100644
--- a/spec/env/browser.js
+++ b/spec/env/browser.js
@@ -3,6 +3,15 @@ require('./common');
 var fs = require('fs'),
     vm = require('vm');
 
+var chai = require('chai');
+var dirtyChai = require('dirty-chai');
+
+
+chai.use(dirtyChai);
+global.expect = chai.expect;
+
+global.sinon = require('sinon');
+
 global.Handlebars = 'no-conflict';
 
 var filename = 'dist/handlebars.js';
diff --git a/spec/env/common.js b/spec/env/common.js
index 9523eaeb2..3903e35d4 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -63,12 +63,20 @@ global.compileWithPartials = function(string, hashOrArray, partials) {
 };
 
 
+/**
+ * @deprecated Use chai's expect-style API instead (`expect(actualValue).to.equal(expectedValue)`)
+ * @see https://www.chaijs.com/api/bdd/
+ */
 global.equals = global.equal = function equals(a, b, msg) {
   if (a !== b) {
     throw new AssertError("'" + a + "' should === '" + b + "'" + (msg ? ': ' + msg : ''), equals);
   }
 };
 
+/**
+ * @deprecated Use chai's expect-style API instead (`expect(actualValue).to.equal(expectedValue)`)
+ * @see https://www.chaijs.com/api/bdd/#method_throw
+ */
 global.shouldThrow = function(callback, type, msg) {
   var failed;
   try {
diff --git a/spec/env/node.js b/spec/env/node.js
index 8b97c4d53..0695468ba 100644
--- a/spec/env/node.js
+++ b/spec/env/node.js
@@ -3,9 +3,12 @@ require('./common');
 var chai = require('chai');
 var dirtyChai = require('dirty-chai');
 
+
 chai.use(dirtyChai);
 global.expect = chai.expect;
 
+global.sinon = require('sinon');
+
 global.Handlebars = require('../../lib');
 
 global.CompilerContext = {
diff --git a/spec/index.html b/spec/index.html
index 3528b78d6..b768dff76 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -19,14 +19,15 @@
         document.documentElement.className = 'headless';
       }
     </script>
-    <script src="/node_modules/mocha/mocha.js"></script>
+    <script src="/node_modules/sinon/pkg/sinon.js"></script>
     <script src="/node_modules/chai/chai.js"></script>
     <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
+    <script src="/node_modules/mocha/mocha.js"></script>
     <script>
+      window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
     <script src="/dist/handlebars.js"></script>
-
     <script src="/spec/env/json2.js"></script>
     <script src="/spec/env/common.js"></script>
     <script>
diff --git a/spec/security.js b/spec/security.js
index 80b8e23c2..876b67292 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -75,11 +75,11 @@ describe('security issues', function() {
             });
             it('should throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
                 var functionCalls = [];
-                shouldThrow(function() {
+                expect(function() {
                     var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
                     template({ fn: function() { functionCalls.push('called'); }});
-                }, Error);
-                equals(functionCalls.length, 0);
+                }).to.throw(Error);
+                expect(functionCalls.length).to.equal(0);
             });
             it('should throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
                 shouldThrow(function() {
diff --git a/spec/umd-runtime.html b/spec/umd-runtime.html
index 90b91448a..212d4f2dc 100644
--- a/spec/umd-runtime.html
+++ b/spec/umd-runtime.html
@@ -18,11 +18,14 @@
         document.documentElement.className = 'headless';
       }
     </script>
+    <script src="/node_modules/sinon/pkg/sinon.js"></script>
+    <script src="/node_modules/chai/chai.js"></script>
+    <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
     <script src="/node_modules/mocha/mocha.js"></script>
     <script>
+      window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-
     <script src="/spec/env/json2.js"></script>
     <script src="/spec/env/require.js"></script>
 
diff --git a/spec/umd.html b/spec/umd.html
index 5f3863fc8..53d6b2716 100644
--- a/spec/umd.html
+++ b/spec/umd.html
@@ -18,11 +18,15 @@
         document.documentElement.className = 'headless';
       }
     </script>
+
+    <script src="/node_modules/sinon/pkg/sinon.js"></script>
+    <script src="/node_modules/chai/chai.js"></script>
+    <script src="/node_modules/dirty-chai/lib/dirty-chai.js"></script>
     <script src="/node_modules/mocha/mocha.js"></script>
     <script>
+      window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-
     <script src="/spec/env/json2.js"></script>
     <script src="/spec/env/require.js"></script>
 

From 0817dad7e72c51d07f7700547d0c69aa79a4976b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 15 Nov 2019 17:22:29 +0100
Subject: [PATCH 115/191] test: add sinon as global variable to eslint in the
 specs

---
 spec/.eslintrc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/spec/.eslintrc b/spec/.eslintrc
index 8d4ed7a2e..4bec97f44 100644
--- a/spec/.eslintrc
+++ b/spec/.eslintrc
@@ -27,6 +27,7 @@
     "start": true,
     "stop": true,
     "ok": true,
+    "sinon": true,
     "strictEqual": true,
     "define": true,
     "expect": true,

From 886ba86c2f9cc71b7d99b9018fbe2d72a57085cc Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 17 Nov 2019 22:18:20 +0100
Subject: [PATCH 116/191] test/chore: add chai/expect and sinon to
 "runtime"-environment

---
 spec/env/runtime.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/spec/env/runtime.js b/spec/env/runtime.js
index 642acd348..4f6d28534 100644
--- a/spec/env/runtime.js
+++ b/spec/env/runtime.js
@@ -3,6 +3,15 @@ require('./common');
 var fs = require('fs'),
     vm = require('vm');
 
+var chai = require('chai');
+var dirtyChai = require('dirty-chai');
+
+
+chai.use(dirtyChai);
+global.expect = chai.expect;
+
+global.sinon = require('sinon');
+
 global.Handlebars = 'no-conflict';
 
 var filename = 'dist/handlebars.runtime.js';

From 198887808780bbef9dba67a8af68ece091d5baa7 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 17 Nov 2019 21:29:47 +0100
Subject: [PATCH 117/191] fix: add more properties required to be enumerable

- __defineGetter__, __defineSetter__, __lookupGetter__, __proto__
---
 lib/handlebars/compiler/compiler.js           | 15 ++--------
 .../compiler/javascript-compiler.js           |  6 ++--
 lib/handlebars/helpers/lookup.js              |  4 ++-
 spec/env/common.js                            | 29 +++++++++++++------
 spec/security.js                              | 24 +++++++++++++--
 5 files changed, 49 insertions(+), 29 deletions(-)

diff --git a/lib/handlebars/compiler/compiler.js b/lib/handlebars/compiler/compiler.js
index 894f7a7c0..b56ca5c26 100644
--- a/lib/handlebars/compiler/compiler.js
+++ b/lib/handlebars/compiler/compiler.js
@@ -54,9 +54,7 @@ Compiler.prototype = {
 
     options.blockParams = options.blockParams || [];
 
-    // These changes will propagate to the other compiler components
-    let knownHelpers = options.knownHelpers;
-    options.knownHelpers = {
+    options.knownHelpers = extend(Object.create(null), {
       'helperMissing': true,
       'blockHelperMissing': true,
       'each': true,
@@ -65,15 +63,7 @@ Compiler.prototype = {
       'with': true,
       'log': true,
       'lookup': true
-    };
-    if (knownHelpers) {
-      // the next line should use "Object.keys", but the code has been like this a long time and changing it, might
-      // cause backwards-compatibility issues... It's an old library...
-      // eslint-disable-next-line guard-for-in
-      for (let name in knownHelpers) {
-          this.options.knownHelpers[name] = knownHelpers[name];
-      }
-    }
+    }, options.knownHelpers);
 
     return this.accept(program);
   },
@@ -369,7 +359,6 @@ Compiler.prototype = {
     if (isEligible && !isHelper) {
       let name = sexpr.path.parts[0],
           options = this.options;
-
       if (options.knownHelpers[name]) {
         isHelper = true;
       } else if (options.knownHelpersOnly) {
diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index b21df1d8a..4acdb50dd 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -2,6 +2,7 @@ import { COMPILER_REVISION, REVISION_CHANGES } from '../base';
 import Exception from '../exception';
 import {isArray} from '../utils';
 import CodeGen from './code-gen';
+import {dangerousPropertyRegex} from '../helpers/lookup';
 
 function Literal(value) {
   this.value = value;
@@ -13,9 +14,8 @@ JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
   nameLookup: function(parent, name/* , type*/) {
-    const isEnumerable = [ this.aliasable('container.propertyIsEnumerable'), '.call(', parent, ',"constructor")'];
-
-    if (name === 'constructor') {
+    if (dangerousPropertyRegex.test(name)) {
+      const isEnumerable = [ this.aliasable('container.propertyIsEnumerable'), '.call(', parent, ',', JSON.stringify(name), ')'];
       return ['(', isEnumerable, '?', _actualLookup(), ' : undefined)'];
     }
     return _actualLookup();
diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index 0654cc393..cba452451 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -1,9 +1,11 @@
+export const dangerousPropertyRegex = /^(constructor|__defineGetter__|__defineSetter__|__lookupGetter__|__proto__)$/;
+
 export default function(instance) {
   instance.registerHelper('lookup', function(obj, field) {
     if (!obj) {
       return obj;
     }
-    if (String(field) === 'constructor' && !obj.propertyIsEnumerable(field)) {
+    if (dangerousPropertyRegex.test(String(field)) && !obj.propertyIsEnumerable(field)) {
       return undefined;
     }
     return obj[field];
diff --git a/spec/env/common.js b/spec/env/common.js
index 3903e35d4..ac9421845 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -142,24 +142,35 @@ HandlebarsTestBench.prototype.withMessage = function(message) {
 };
 
 HandlebarsTestBench.prototype.toCompileTo = function(expectedOutputAsString) {
+  expect(this._compileAndExeute()).to.equal(expectedOutputAsString);
+};
+
+// see chai "to.throw" (https://www.chaijs.com/api/bdd/#method_throw)
+HandlebarsTestBench.prototype.toThrow = function(errorLike, errMsgMatcher, msg) {
   var self = this;
+  expect(function() {
+    self._compileAndExeute();
+  }).to.throw(errorLike, errMsgMatcher, msg);
+};
+
+HandlebarsTestBench.prototype._compileAndExeute = function() {
   var compile = Object.keys(this.partials).length > 0
       ? CompilerContext.compileWithPartial
       : CompilerContext.compile;
 
+  var combinedRuntimeOptions = this._combineRuntimeOptions();
+
+  var template = compile(this.templateAsString, this.compileOptions);
+  return template(this.input, combinedRuntimeOptions);
+};
+
+HandlebarsTestBench.prototype._combineRuntimeOptions = function() {
+  var self = this;
   var combinedRuntimeOptions = {};
   Object.keys(this.runtimeOptions).forEach(function(key) {
     combinedRuntimeOptions[key] = self.runtimeOptions[key];
   });
   combinedRuntimeOptions.helpers = this.helpers;
   combinedRuntimeOptions.partials = this.partials;
-
-  var template = compile(this.templateAsString, this.compileOptions);
-  var output = template(this.input, combinedRuntimeOptions);
-
-  if (output !== expectedOutputAsString) {
-    // Error message formatted so that IntelliJ-Idea shows "diff"-button
-    // https://stackoverflow.com/a/10945655/4251384
-    throw new AssertError(this.message + '\nexpected:' + expectedOutputAsString + 'but was:' + output);
-  }
+  return combinedRuntimeOptions;
 };
diff --git a/spec/security.js b/spec/security.js
index 876b67292..18bfa5dd7 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -114,13 +114,31 @@ describe('security issues', function() {
     describe('GH-1563', function() {
         it('should not allow to access constructor after overriding via __defineGetter__', function() {
             if (({}).__defineGetter__ == null || ({}).__lookupGetter__ == null) {
-                return; // Browser does not support this exploit anyway
+                return this.skip(); // Browser does not support this exploit anyway
             }
-            shouldCompileTo('{{__defineGetter__ "undefined" valueOf }}' +
+            expectTemplate('{{__defineGetter__ "undefined" valueOf }}' +
                 '{{#with __lookupGetter__ }}' +
                 '{{__defineGetter__ "propertyIsEnumerable" (this.bind (this.bind 1)) }}' +
                 '{{constructor.name}}' +
-                '{{/with}}', {}, '');
+                '{{/with}}')
+                .withInput({})
+                .toThrow(/Missing helper: "__defineGetter__"/);
         });
     });
+
+    describe('GH-1595', function() {
+      it('properties, that are required to be enumerable', function() {
+        expectTemplate('{{constructor}}').withInput({}).toCompileTo('');
+        expectTemplate('{{__defineGetter__}}').withInput({}).toCompileTo('');
+        expectTemplate('{{__defineSetter__}}').withInput({}).toCompileTo('');
+        expectTemplate('{{__lookupGetter__}}').withInput({}).toCompileTo('');
+        expectTemplate('{{__proto__}}').withInput({}).toCompileTo('');
+
+        expectTemplate('{{lookup "constructor"}}').withInput({}).toCompileTo('');
+        expectTemplate('{{lookup "__defineGetter__"}}').withInput({}).toCompileTo('');
+        expectTemplate('{{lookup "__defineSetter__"}}').withInput({}).toCompileTo('');
+        expectTemplate('{{lookup "__lookupGetter__"}}').withInput({}).toCompileTo('');
+        expectTemplate('{{lookup "__proto__"}}').withInput({}).toCompileTo('');
+      });
+    });
 });

From f7f05d7558e674856686b62a00cde5758f3b7a08 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 18 Nov 2019 04:14:54 +0100
Subject: [PATCH 118/191] fix: add "no-prototype-builtins" eslint-rule and fix
 all occurences

---
 .eslintrc.js                                  |  3 ++-
 bench/util/benchwarmer.js                     | 11 +++++-----
 lib/handlebars/compiler/code-gen.js           | 12 +++++------
 .../compiler/javascript-compiler.js           |  6 +++---
 lib/handlebars/helpers/each.js                | 20 +++++++++----------
 lib/handlebars/helpers/lookup.js              |  2 +-
 spec/compiler.js                              |  2 +-
 spec/regressions.js                           |  4 ++--
 8 files changed, 28 insertions(+), 32 deletions(-)

diff --git a/.eslintrc.js b/.eslintrc.js
index 3ba423055..5c55b10f9 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -57,6 +57,7 @@ module.exports = {
     "no-with": "error",
     "radix": "error",
     "wrap-iife": "error",
+    "no-prototype-builtins": "error",
 
 
     // Variables //
@@ -114,4 +115,4 @@ module.exports = {
     "ecmaVersion": 6,
     "ecmaFeatures": {}
   }
-}
+};
diff --git a/bench/util/benchwarmer.js b/bench/util/benchwarmer.js
index 49f66f737..58f138a0e 100644
--- a/bench/util/benchwarmer.js
+++ b/bench/util/benchwarmer.js
@@ -29,7 +29,7 @@ BenchWarmer.prototype = {
     });
   },
   push: function(name, fn) {
-    if (this.names.indexOf(name) == -1) {
+    if (this.names.indexOf(name) === -1) {
       this.names.push(name);
     }
 
@@ -77,7 +77,7 @@ BenchWarmer.prototype = {
 
         var errors = false, prop, bench;
         for (prop in self.errors) {
-          if (self.errors.hasOwnProperty(prop)
+          if (Object.prototype.hasOwnProperty.call(self, prop)
               && self.errors[prop].error.message !== 'EWOT') {
             errors = true;
             break;
@@ -86,9 +86,8 @@ BenchWarmer.prototype = {
 
         if (errors) {
           print('\n\nErrors:\n');
-          for (prop in self.errors) {
-            if (self.errors.hasOwnProperty(prop)
-                && self.errors[prop].error.message !== 'EWOT') {
+          Object.keys(self.errors).forEach(function(prop) {
+            if (self.errors[prop].error.message !== 'EWOT') {
               bench = self.errors[prop];
               print('\n' + bench.name + ':\n');
               print(bench.error.message);
@@ -97,7 +96,7 @@ BenchWarmer.prototype = {
               }
               print('\n');
             }
-          }
+          });
         }
 
         callback();
diff --git a/lib/handlebars/compiler/code-gen.js b/lib/handlebars/compiler/code-gen.js
index 43c0481bc..30c5af740 100644
--- a/lib/handlebars/compiler/code-gen.js
+++ b/lib/handlebars/compiler/code-gen.js
@@ -125,14 +125,12 @@ CodeGen.prototype = {
   objectLiteral: function(obj) {
     let pairs = [];
 
-    for (let key in obj) {
-      if (obj.hasOwnProperty(key)) {
-        let value = castChunk(obj[key], this);
-        if (value !== 'undefined') {
-          pairs.push([this.quotedString(key), ':', value]);
-        }
+    Object.keys(obj).forEach(key => {
+      let value = castChunk(obj[key], this);
+      if (value !== 'undefined') {
+        pairs.push([this.quotedString(key), ':', value]);
       }
-    }
+    });
 
     let ret = this.generateList(pairs);
     ret.prepend('{');
diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 4acdb50dd..9a4c02daf 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -218,13 +218,13 @@ JavaScriptCompiler.prototype = {
     // aliases will not be used, but this case is already being run on the client and
     // we aren't concern about minimizing the template size.
     let aliasCount = 0;
-    for (let alias in this.aliases) { // eslint-disable-line guard-for-in
+    Object.keys(this.aliases).forEach(alias => {
       let node = this.aliases[alias];
-      if (this.aliases.hasOwnProperty(alias) && node.children && node.referenceCount > 1) {
+      if (node.children && node.referenceCount > 1) {
         varDeclarations += ', alias' + (++aliasCount) + '=' + alias;
         node.children[0] = 'alias' + aliasCount;
       }
-    }
+    });
 
     let params = ['container', 'depth0', 'helpers', 'partials', 'data'];
 
diff --git a/lib/handlebars/helpers/each.js b/lib/handlebars/helpers/each.js
index ce549b5c7..8e57b7782 100644
--- a/lib/handlebars/helpers/each.js
+++ b/lib/handlebars/helpers/each.js
@@ -62,18 +62,16 @@ export default function(instance) {
       } else {
         let priorKey;
 
-        for (let key in context) {
-          if (context.hasOwnProperty(key)) {
-            // We're running the iterations one step out of sync so we can detect
-            // the last iteration without have to scan the object twice and create
-            // an itermediate keys array.
-            if (priorKey !== undefined) {
-              execIteration(priorKey, i - 1);
-            }
-            priorKey = key;
-            i++;
+        Object.keys(context).forEach(key => {
+          // We're running the iterations one step out of sync so we can detect
+          // the last iteration without have to scan the object twice and create
+          // an itermediate keys array.
+          if (priorKey !== undefined) {
+            execIteration(priorKey, i - 1);
           }
-        }
+          priorKey = key;
+          i++;
+        });
         if (priorKey !== undefined) {
           execIteration(priorKey, i - 1, true);
         }
diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index cba452451..8c1b604be 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -5,7 +5,7 @@ export default function(instance) {
     if (!obj) {
       return obj;
     }
-    if (dangerousPropertyRegex.test(String(field)) && !obj.propertyIsEnumerable(field)) {
+    if (dangerousPropertyRegex.test(String(field)) && !Object.prototype.propertyIsEnumerable.call(obj, field)) {
       return undefined;
     }
     return obj[field];
diff --git a/spec/compiler.js b/spec/compiler.js
index 02dad6751..3d37b5940 100644
--- a/spec/compiler.js
+++ b/spec/compiler.js
@@ -59,7 +59,7 @@ describe('compiler', function() {
         Handlebars.compile(' \n  {{#if}}\n{{/def}}')();
         equal(true, false, 'Statement must throw exception. This line should not be executed.');
       } catch (err) {
-        equal(err.propertyIsEnumerable('column'), true, 'Checking error column');
+        equal(Object.prototype.propertyIsEnumerable.call(err, 'column'), true, 'Checking error column');
       }
     });
 
diff --git a/spec/regressions.js b/spec/regressions.js
index a8879067e..74594de6b 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -211,12 +211,12 @@ describe('Regressions', function() {
         // It's valid to execute a block against an undefined context, but
         // helpers can not do so, so we expect to have an empty object here;
         for (var name in this) {
-          if (this.hasOwnProperty(name)) {
+          if (Object.prototype.hasOwnProperty.call(this, name)) {
             return 'found';
           }
         }
         // And to make IE happy, check for the known string as length is not enumerated.
-        return (this == 'bat' ? 'found' : 'not');
+        return (this === 'bat' ? 'found' : 'not');
       }
     };
 

From 827c9d0747bef7d7f89829779523b6b2dcf3051d Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 18 Nov 2019 08:09:48 +0100
Subject: [PATCH 119/191] Update release notes

---
 release-notes.md | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 3eefabe89..199c39bf5 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,49 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.3...master)
+
+## v4.5.3 - November 18th, 2019
+Bugfixes:
+
+- fix: add "no-prototype-builtins" eslint-rule and fix all occurences - f7f05d7
+- fix: add more properties required to be enumerable - 1988878
+
+Chores / Build:
+- fix: use !== 0 instead of != 0 - c02b05f
+- add chai and dirty-chai and sinon, for cleaner test-assertions and spies, 
+  deprecate old assertion-methods  - 93e284e, 886ba86, 0817dad, 93516a0
+
+Security:
+
+- The properties `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__` 
+  have been added to the list of "properties that must be enumerable".
+  If a property by that name is found and not enumerable on its parent, 
+  it will silently evaluate to `undefined`. This is done in both the compiled template and the "lookup"-helper. 
+  This will prevent new Remote-Code-Execution exploits that have been
+  published recently.
+
+Compatibility notes: 
+
+- Due to the security-fixes. The semantics of the templates using
+  `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__` in the respect that those expression now return 
+  `undefined` rather than their actual value from the proto.
+- The semantics have not changed in cases where the properties are  enumerable, as in:
+
+```js
+{
+  __proto__: 'some string'
+}
+```
+
+- The change may be breaking in that respect, but we still only 
+  increase the patch-version, because the incompatible use-cases
+  are not intended, undocumented and far less important than fixing
+  Remote-Code-Execution exploits on existing systems.
+
+
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.2...v4.5.3)
 
 ## v4.5.2 - November 13th, 2019
 # Bugfixes

From c819c8b533934d2ac18001d7eb27a3205b00c2f3 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 18 Nov 2019 08:10:26 +0100
Subject: [PATCH 120/191] v4.5.3

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 53453c96d..07e2baa96 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index a4ec49b01..e8d52d4ca 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.5.2</version>
+		<version>4.5.3</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 1fcee3eed..9623086b4 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index adb1547a5..ad3541b53 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import {registerDefaultHelpers} from './helpers';
 import {registerDefaultDecorators} from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.5.2';
+export const VERSION = '4.5.3';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 426b40cb2..74749d86b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 23d58e79bbe82244ed58c8816d16838a97ea3077 Mon Sep 17 00:00:00 2001
From: ole-martin <47389666+ole-martin@users.noreply.github.com>
Date: Mon, 18 Nov 2019 21:21:03 +0100
Subject: [PATCH 121/191] fix(runtime.js): partials compile not caching (#1600)

Reintroduce "merge" function, no called "mergeIfNeeded", that only creates a new partials
object if both "env.partials" and "options.partials" are set.

closes #1598
---
 lib/handlebars/runtime.js | 12 +++++++++++-
 spec/regressions.js       | 27 +++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 958afc3ef..59b1cc106 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -124,6 +124,15 @@ export function template(templateSpec, env) {
       }
       return value;
     },
+    mergeIfNeeded: function(param, common) {
+      let obj = param || common;
+
+      if (param && common && (param !== common)) {
+        obj = Utils.extend({}, common, param);
+      }
+
+      return obj;
+    },
     // An empty object to use as replacement for null-contexts
     nullContext: Object.seal({}),
 
@@ -161,7 +170,8 @@ export function template(templateSpec, env) {
       container.helpers = Utils.extend({}, env.helpers, options.helpers);
 
       if (templateSpec.usePartial) {
-        container.partials = Utils.extend({}, env.partials, options.partials);
+        // Use mergeIfNeeded here to prevent compiling global partials multiple times
+        container.partials = container.mergeIfNeeded(options.partials, env.partials);
       }
       if (templateSpec.usePartial || templateSpec.useDecorators) {
         container.decorators = Utils.extend({}, env.decorators, options.decorators);
diff --git a/spec/regressions.js b/spec/regressions.js
index 74594de6b..3eccb2817 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -334,4 +334,31 @@ describe('Regressions', function() {
 
     shouldCompileTo('{{helpa length="foo"}}', [obj, helpers], 'foo');
   });
+
+  describe('GH-1598: Performance degradation for partials since v4.3.0', function() {
+    // Do not run test for runs without compiler
+    if (!Handlebars.compile) {
+      return;
+    }
+
+    var newHandlebarsInstance;
+    beforeEach(function() {
+      newHandlebarsInstance = Handlebars.create();
+    });
+    afterEach(function() {
+      sinon.restore();
+    });
+
+    it('should only compile global partials once', function() {
+      var templateSpy = sinon.spy(newHandlebarsInstance, 'template');
+      newHandlebarsInstance.registerPartial({
+        'dude': 'I am a partial'
+      });
+      var string = 'Dudes: {{> dude}} {{> dude}}';
+      newHandlebarsInstance.compile(string)(); // This should compile template + partial once
+      newHandlebarsInstance.compile(string)(); // This should only compile template
+      equal(templateSpy.callCount, 3);
+      sinon.restore();
+    });
+  });
 });

From edcc84f29224fec79bba0f989d19a0eabde749e2 Mon Sep 17 00:00:00 2001
From: ole-martin <47389666+ole-martin@users.noreply.github.com>
Date: Mon, 2 Dec 2019 22:03:52 +0100
Subject: [PATCH 122/191] Update readme.md with updated links (#1620)

* Update readme.md with updated links

Fix http->https where possible and update links doc links

* Update README.markdown

* Fix precompilation link
---
 README.markdown | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/README.markdown b/README.markdown
index 434a0e3a6..5450f9cd2 100644
--- a/README.markdown
+++ b/README.markdown
@@ -11,12 +11,12 @@ Handlebars.js and Mustache are both logicless templating languages that
 keep the view and the code separated like we all know they should be.
 
 Checkout the official Handlebars docs site at
-[http://www.handlebarsjs.com](http://www.handlebarsjs.com) and the live demo at [http://tryhandlebarsjs.com/](http://tryhandlebarsjs.com/).
+[https://handlebarsjs.com/](https://handlebarsjs.com) and the live demo at [http://tryhandlebarsjs.com/](http://tryhandlebarsjs.com/).
 
 Installing
 ----------
 
-See our [installation documentation](http://handlebarsjs.com/installation.html).
+See our [installation documentation](https://handlebarsjs.com/installation/).
 
 Usage
 -----
@@ -46,23 +46,23 @@ var result = template(data);
 // </ul>
 ```
 
-Full documentation and more examples are at [handlebarsjs.com](http://handlebarsjs.com/).
+Full documentation and more examples are at [handlebarsjs.com](https://handlebarsjs.com/).
 
 Precompiling Templates
 ----------------------
 
-Handlebars allows templates to be precompiled and included as javascript code rather than the handlebars template allowing for faster startup time. Full details are located [here](http://handlebarsjs.com/precompilation.html).
+Handlebars allows templates to be precompiled and included as javascript code rather than the handlebars template allowing for faster startup time. Full details are located [here](https://handlebarsjs.com/installation/precompilation.html).
 
 Differences Between Handlebars.js and Mustache
 ----------------------------------------------
 Handlebars.js adds a couple of additional features to make writing
 templates easier and also changes a tiny detail of how partials work.
 
-- [Nested Paths](http://handlebarsjs.com/#paths)
-- [Helpers](http://handlebarsjs.com/#helpers)
-- [Block Expressions](http://handlebarsjs.com/#block-expressions)
-- [Literal Values](http://handlebarsjs.com/#literals)
-- [Delimited Comments](http://handlebarsjs.com/#comments)
+- [Nested Paths](https://handlebarsjs.com/guide/expressions.html#path-expressions)
+- [Helpers](https://handlebarsjs.com/guide/expressions.html#helpers)
+- [Block Expressions](https://handlebarsjs.com/guide/block-helpers.html#basic-blocks)
+- [Literal Values](https://handlebarsjs.com/guide/expressions.html#literal-segments)
+- [Delimited Comments](https://handlebarsjs.com/guide/#template-comments)
 
 Block expressions have the same syntax as mustache sections but should not be confused with one another. Sections are akin to an implicit `each` or `with` statement depending on the input data and helpers are explicit pieces of code that are free to implement whatever behavior they like. The [mustache spec](http://mustache.github.io/mustache.5.html) defines the exact behavior of sections. In the case of name conflicts, helpers are given priority.
 

From 587e7a3e63bf815857fd479c9100c7f07912e215 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 30 Nov 2019 23:37:44 +0100
Subject: [PATCH 123/191] remove yarn.lock

---
 yarn.lock | 5839 -----------------------------------------------------
 1 file changed, 5839 deletions(-)
 delete mode 100644 yarn.lock

diff --git a/yarn.lock b/yarn.lock
deleted file mode 100644
index bf9a353ba..000000000
--- a/yarn.lock
+++ /dev/null
@@ -1,5839 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-
-"@babel/code-frame@^7.0.0":
-  version "7.5.5"
-  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.5.5.tgz#bc0782f6d69f7b7d49531219699b988f669a8f9d"
-  integrity sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==
-  dependencies:
-    "@babel/highlight" "^7.0.0"
-
-"@babel/highlight@^7.0.0":
-  version "7.5.0"
-  resolved "https://registry.yarnpkg.com/@babel/highlight/-/highlight-7.5.0.tgz#56d11312bd9248fa619591d02472be6e8cb32540"
-  integrity sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==
-  dependencies:
-    chalk "^2.0.0"
-    esutils "^2.0.2"
-    js-tokens "^4.0.0"
-
-"@knappi/grunt-saucelabs@^9.0.2":
-  version "9.0.2"
-  resolved "https://registry.yarnpkg.com/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.2.tgz#ac3cf06bb2006e52174a9da43a73c32123fb5b95"
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-  resolved "https://registry.yarnpkg.com/maxmin/-/maxmin-1.1.0.tgz#71365e84a99dd8f8b3f7d5fde2f00d1e7f73be61"
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-  resolved "https://registry.yarnpkg.com/memory-fs/-/memory-fs-0.4.1.tgz#3a9a20b8462523e447cfbc7e8bb80ed667bfc552"
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-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/meow/-/meow-3.7.0.tgz#72cb668b425228290abbfa856892587308a801fb"
-  integrity sha1-cstmi0JSKCkKu/qFaJJYcwioAfs=
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-    read-pkg-up "^1.0.1"
-    redent "^1.0.0"
-    trim-newlines "^1.0.0"
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-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
-  integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
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-  resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
-  integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
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-  version "2.3.11"
-  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-2.3.11.tgz#86677c97d1720b363431d04d0d15293bd38c1565"
-  integrity sha1-hmd8l9FyCzY0MdBNDRUpO9OMFWU=
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-    normalize-path "^2.0.1"
-    object.omit "^2.0.0"
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-    regex-cache "^0.4.2"
-
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-  version "3.1.10"
-  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-3.1.10.tgz#70859bc95c9840952f359a068a3fc49f9ecfac23"
-  integrity sha512-MWikgl9n9M3w+bpsY3He8L+w9eF9338xRl8IAO5viDizwSzziFEyUzo2xrrloB64ADbTf8uA8vRqqttDTOmccg==
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-    array-unique "^0.3.2"
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-    fragment-cache "^0.2.1"
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-    regex-not "^1.0.0"
-    snapdragon "^0.8.1"
-    to-regex "^3.0.2"
-
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-  version "1.40.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.40.0.tgz#a65057e998db090f732a68f6c276d387d4126c32"
-  integrity sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==
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-  version "1.42.0"
-  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.42.0.tgz#3e252907b4c7adb906597b4b65636272cf9e7bac"
-  integrity sha512-UbfJCR4UAVRNgMpfImz05smAXK7+c+ZntjaA26ANtkXLlOe947Aag5zdIcKQULAiF9Cq4WxBi9jUs5zkA84bYQ==
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-  version "2.1.24"
-  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.24.tgz#b6f8d0b3e951efb77dedeca194cff6d16f676f81"
-  integrity sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==
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-  version "1.6.0"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
-  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
-
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-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-1.2.0.tgz#820c86a39334640e99516928bd03fca88057d022"
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-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/mimic-fn/-/mimic-fn-2.1.0.tgz#7ed2c2ccccaf84d3ffcb7a69b57711fc2083401b"
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-  version "3.0.4"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
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-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-2.0.10.tgz#8d087c39c6b38c001b97fca7ce6d0e1e80afbac7"
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-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
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-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
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-  version "2.9.0"
-  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
-  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
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-    yallist "^3.0.0"
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-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
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-  version "1.3.2"
-  resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.2.tgz#1120b43dc359a785dce65b55b82e257ccf479566"
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-  integrity sha1-xlfZZC2QeGQ1xkyl6Zu9TQm9fdM=
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-  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.9.1.tgz#0a8d16734a1d9afbc824b99df87e738e58e2da59"
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-  resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
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-  version "2.1.2"
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-  version "2.3.2"
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-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
-  integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
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-  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.0.tgz#7818f722027b2459a86f0295d434d1fc2336c52c"
-  integrity sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==
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-  version "1.2.13"
-  resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"
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-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
-
-wrap-ansi@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-2.1.0.tgz#d8fc3d284dd05794fe84973caecdd1cf824fdd85"
-  integrity sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=
-  dependencies:
-    string-width "^1.0.1"
-    strip-ansi "^3.0.1"
-
-wrappy@1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"
-  integrity sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=
-
-write@^0.2.1:
-  version "0.2.1"
-  resolved "https://registry.yarnpkg.com/write/-/write-0.2.1.tgz#5fc03828e264cea3fe91455476f7a3c566cb0757"
-  integrity sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=
-  dependencies:
-    mkdirp "^0.5.1"
-
-xml2js@0.4.19:
-  version "0.4.19"
-  resolved "https://registry.yarnpkg.com/xml2js/-/xml2js-0.4.19.tgz#686c20f213209e94abf0d1bcf1efaa291c7827a7"
-  integrity sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==
-  dependencies:
-    sax ">=0.6.0"
-    xmlbuilder "~9.0.1"
-
-xmlbuilder@~9.0.1:
-  version "9.0.7"
-  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
-  integrity sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=
-
-xtend@^4.0.0:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
-  integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
-
-y18n@^3.2.0:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
-  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
-
-"y18n@^3.2.1 || ^4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-4.0.0.tgz#95ef94f85ecc81d007c264e190a120f0a3c8566b"
-  integrity sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==
-
-yallist@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
-  integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
-
-yallist@^3.0.0, yallist@^3.0.3:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
-  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
-
-yargs-parser@^11.1.1:
-  version "11.1.1"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-11.1.1.tgz#879a0865973bca9f6bab5cbdf3b1c67ec7d3bcf4"
-  integrity sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
-
-yargs@^12.0.5:
-  version "12.0.5"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-12.0.5.tgz#05f5997b609647b64f66b81e3b4b10a368e7ad13"
-  integrity sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==
-  dependencies:
-    cliui "^4.0.0"
-    decamelize "^1.2.0"
-    find-up "^3.0.0"
-    get-caller-file "^1.0.1"
-    os-locale "^3.0.0"
-    require-directory "^2.1.1"
-    require-main-filename "^1.0.1"
-    set-blocking "^2.0.0"
-    string-width "^2.0.0"
-    which-module "^2.0.0"
-    y18n "^3.2.1 || ^4.0.0"
-    yargs-parser "^11.1.1"
-
-yargs@^3.32.0:
-  version "3.32.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.32.0.tgz#03088e9ebf9e756b69751611d2a5ef591482c995"
-  integrity sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=
-  dependencies:
-    camelcase "^2.0.1"
-    cliui "^3.0.3"
-    decamelize "^1.1.1"
-    os-locale "^1.4.0"
-    string-width "^1.0.1"
-    window-size "^0.1.4"
-    y18n "^3.2.0"
-
-yargs@~3.10.0:
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.10.0.tgz#f7ee7bd857dd7c1d2d38c0e74efbd681d1431fd1"
-  integrity sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=
-  dependencies:
-    camelcase "^1.0.2"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    window-size "0.1.0"
-
-yargs@~3.27.0:
-  version "3.27.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-3.27.0.tgz#21205469316e939131d59f2da0c6d7f98221ea40"
-  integrity sha1-ISBUaTFuk5Ex1Z8toMbX+YIh6kA=
-  dependencies:
-    camelcase "^1.2.1"
-    cliui "^2.1.0"
-    decamelize "^1.0.0"
-    os-locale "^1.4.0"
-    window-size "^0.1.2"
-    y18n "^3.2.0"

From 1f61f2125015d1efee6437d8aa97e86030246a93 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 30 Nov 2019 22:38:06 +0100
Subject: [PATCH 124/191] chore: configure prettier and eslint

- add prettier to do formatting
- add eslint-config-prettier to
  disable rules conflicting with prettier
- remove eslint from grunt workflow
- use lint-stage to lint and format
  on precommit
- use eslint and prettier in travis directly
- remove rules that are already part of
  the "recommended" ruleset

That rational is that eslint and prettier should be run in
Travis-CI, on commit and as IDE integration (highlighting
errors directlry). They don't need to be run along with
test-cases. Getting linting errors when running the tests
because of missing semicolons is just annoying, but doesn't
help the overall code-quality.
---
 .eslintignore                                 |   24 +
 .eslintrc.js                                  |  153 +-
 .gitignore                                    |   15 +-
 .prettierignore                               |   21 +
 .travis.yml                                   |    2 +
 Gruntfile.js                                  |   17 +-
 bench/.eslintrc                               |    3 +-
 .../multi-nodejs-test/.eslintrc.js            |   17 +-
 package-lock.json                             | 2137 +++++++++++++----
 package.json                                  |   26 +-
 prettier.config.js                            |    5 +
 spec/.eslintrc                                |    5 +-
 spec/amd-runtime.html                         |    4 +-
 spec/amd.html                                 |    4 +-
 spec/index.html                               |    2 +-
 spec/umd-runtime.html                         |    4 +-
 spec/umd.html                                 |    4 +-
 spec/{env => vendor}/json2.js                 |    0
 spec/{env => vendor}/require.js               |    0
 19 files changed, 1890 insertions(+), 553 deletions(-)
 create mode 100644 .eslintignore
 create mode 100644 .prettierignore
 create mode 100644 prettier.config.js
 rename spec/{env => vendor}/json2.js (100%)
 rename spec/{env => vendor}/require.js (100%)

diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 000000000..a64673018
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,24 @@
+.rvmrc
+.DS_Store
+/tmp/
+*.sublime-project
+*.sublime-workspace
+npm-debug.log
+sauce_connect.log*
+.idea
+yarn-error.log
+node_modules
+/handlebars-release.tgz
+
+# Generated files
+lib/handlebars/compiler/parser.js
+/coverage/
+/dist/
+/integration-testing/*/dist/
+
+# Third-party or files that must remain unchanged
+/spec/expected/
+/spec/vendor
+
+# JS-Snippets
+src/*.js
diff --git a/.eslintrc.js b/.eslintrc.js
index 5c55b10f9..0abcd5806 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,118 +1,67 @@
 module.exports = {
-  "extends": ["eslint:recommended","plugin:compat/recommended"],
-  "globals": {
-    "self": false
+  extends: ['eslint:recommended', 'plugin:compat/recommended', 'prettier'],
+  globals: {
+    self: false
   },
-  "env": {
-    "node": true,
-    "es6": true
+  env: {
+    node: true,
+    es6: true
   },
-  "rules": {
-    // overrides eslint:recommended defaults
-    "no-sparse-arrays": "off",
-    "no-func-assign": "off",
-    "no-console": "warn",
-    "no-debugger": "warn",
-    "no-unreachable": "warn",
-
-    // Possible Errors //
-    //-----------------//
-    "no-unsafe-negation": "error",
+  rules: {
+    'no-console': 'warn',
 
+    // temporarily disabled until the violating places are fixed.
+    'no-func-assign': 'off',
+    'no-sparse-arrays': 'off',
 
     // Best Practices //
     //----------------//
-    "curly": "error",
-    "default-case": "warn",
-    "dot-notation": ["error", { "allowKeywords": false }],
-    "guard-for-in": "warn",
-    "no-alert": "error",
-    "no-caller": "error",
-    "no-div-regex": "warn",
-    "no-eval": "error",
-    "no-extend-native": "error",
-    "no-extra-bind": "error",
-    "no-floating-decimal": "error",
-    "no-implied-eval": "error",
-    "no-iterator": "error",
-    "no-labels": "error",
-    "no-lone-blocks": "error",
-    "no-loop-func": "error",
-    "no-multi-spaces": "error",
-    "no-multi-str": "warn",
-    "no-global-assign": "error",
-    "no-new": "error",
-    "no-new-func": "error",
-    "no-new-wrappers": "error",
-    "no-octal-escape": "error",
-    "no-process-env": "error",
-    "no-proto": "error",
-    "no-return-assign": "error",
-    "no-script-url": "error",
-    "no-self-compare": "error",
-    "no-sequences": "error",
-    "no-throw-literal": "error",
-    "no-unused-expressions": "error",
-    "no-warning-comments": "warn",
-    "no-with": "error",
-    "radix": "error",
-    "wrap-iife": "error",
-    "no-prototype-builtins": "error",
-
+    'default-case': 'warn',
+    'dot-notation': ['error', { allowKeywords: false }],
+    'guard-for-in': 'warn',
+    'no-alert': 'error',
+    'no-caller': 'error',
+    'no-div-regex': 'warn',
+    'no-eval': 'error',
+    'no-extend-native': 'error',
+    'no-extra-bind': 'error',
+    'no-floating-decimal': 'error',
+    'no-implied-eval': 'error',
+    'no-iterator': 'error',
+    'no-labels': 'error',
+    'no-lone-blocks': 'error',
+    'no-loop-func': 'error',
+    'no-multi-str': 'warn',
+    'no-global-assign': 'error',
+    'no-new': 'error',
+    'no-new-func': 'error',
+    'no-new-wrappers': 'error',
+    'no-octal-escape': 'error',
+    'no-process-env': 'error',
+    'no-proto': 'error',
+    'no-return-assign': 'error',
+    'no-script-url': 'error',
+    'no-self-compare': 'error',
+    'no-sequences': 'error',
+    'no-throw-literal': 'error',
+    'no-unused-expressions': 'error',
+    'no-warning-comments': 'warn',
+    'no-with': 'error',
+    radix: 'error',
 
     // Variables //
     //-----------//
-    "no-catch-shadow": "error",
-    "no-label-var": "error",
-    "no-shadow-restricted-names": "error",
-    "no-undef-init": "error",
-    "no-use-before-define": ["error", "nofunc"],
-
-
-    // Stylistic Issues //
-    //------------------//
-    "comma-dangle": ["error", "never"],
-    "quote-props": ["error", "as-needed", { "keywords": true, "unnecessary": false }],
-    "brace-style": ["error", "1tbs", { "allowSingleLine": true }],
-    "camelcase": "error",
-    "comma-spacing": ["error", { "before": false, "after": true }],
-    "comma-style": ["error", "last"],
-    "consistent-this": ["warn", "self"],
-    "eol-last": "error",
-    "func-style": ["error", "declaration"],
-    "key-spacing": ["error", {
-      "beforeColon": false,
-      "afterColon": true
-    }],
-    "new-cap": "error",
-    "new-parens": "error",
-    "no-array-constructor": "error",
-    "no-lonely-if": "error",
-    "no-mixed-spaces-and-tabs": "error",
-    "no-nested-ternary": "warn",
-    "no-new-object": "error",
-    "no-spaced-func": "error",
-    "no-trailing-spaces": "error",
-    "no-extra-parens": ["error", "functions"],
-    "quotes": ["error", "single", "avoid-escape"],
-    "semi": "error",
-    "semi-spacing": ["error", { "before": false, "after": true }],
-    "keyword-spacing": "error",
-    "space-before-blocks": ["error", "always"],
-    "space-before-function-paren": ["error", { "anonymous": "never", "named": "never" }],
-    "space-in-parens": ["error", "never"],
-    "space-infix-ops": "error",
-    "space-unary-ops": "error",
-    "spaced-comment": ["error", "always", { "markers": [","] }],
-    "wrap-regex": "warn",
+    'no-label-var': 'error',
+    'no-undef-init': 'error',
+    'no-use-before-define': ['error', 'nofunc'],
 
     // ECMAScript 6 //
     //--------------//
-    "no-var": "warn"
+    'no-var': 'error'
   },
-  "parserOptions": {
-    "sourceType": "module",
-    "ecmaVersion": 6,
-    "ecmaFeatures": {}
+  parserOptions: {
+    sourceType: 'module',
+    ecmaVersion: 6,
+    ecmaFeatures: {}
   }
 };
diff --git a/.gitignore b/.gitignore
index 4c97eecd6..8922abaf6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,15 +1,18 @@
-vendor
 .rvmrc
 .DS_Store
-lib/handlebars/compiler/parser.js
-/dist/
 /tmp/
-/coverage/
-node_modules
 *.sublime-project
 *.sublime-workspace
 npm-debug.log
 sauce_connect.log*
 .idea
-yarn-error.log
+/yarn-error.log
+/yarn.lock
+node_modules
 /handlebars-release.tgz
+
+# Generated files
+lib/handlebars/compiler/parser.js
+/coverage/
+/dist/
+/integration-testing/*/dist/
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..b6bc46217
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,21 @@
+.rvmrc
+.DS_Store
+/tmp/
+*.sublime-project
+*.sublime-workspace
+npm-debug.log
+sauce_connect.log*
+.idea
+yarn-error.log
+node_modules
+/handlebars-release.tgz
+
+# Generated files
+lib/handlebars/compiler/parser.js
+/coverage/
+/dist/
+/integration-testing/*/dist/
+
+# Third-party or files that must remain unchanged
+/spec/expected/
+/spec/vendor
diff --git a/.travis.yml b/.travis.yml
index ce9690a9c..a6b141a22 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: node_js
 before_install:
 - npm install -g grunt-cli
 script:
+- npm run lint
+- npm run check-format
 - grunt --stack travis
 email:
   on_failure: change
diff --git a/Gruntfile.js b/Gruntfile.js
index 430a0c60a..a471f67e7 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -4,19 +4,6 @@ module.exports = function(grunt) {
   grunt.initConfig({
     pkg: grunt.file.readJSON('package.json'),
 
-    eslint: {
-      files: [
-        '*.js',
-        'bench/**/*.js',
-        'tasks/**/*.js',
-        'lib/**/!(*.min|parser).js',
-        'spec/**/!(*.amd|json2|require).js',
-        'integration-testing/multi-nodejs-test/*.js',
-        'integration-testing/webpack-test/*.js',
-        'integration-testing/webpack-test/src/*.js'
-      ]
-    },
-
     clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js', 'integration-testing/**/node_modules'],
 
     copy: {
@@ -215,7 +202,6 @@ module.exports = function(grunt) {
 
   // Build a new version of the library
   this.registerTask('build', 'Builds a distributable version of the current project', [
-                    'eslint',
                     'bgShell:checkTypes',
                     'parser',
                     'node',
@@ -226,7 +212,7 @@ module.exports = function(grunt) {
   this.registerTask('globals', ['webpack']);
   this.registerTask('tests', ['concat:tests']);
 
-  this.registerTask('release', 'Build final packages', ['eslint', 'amd', 'uglify', 'test:min', 'copy:dist', 'copy:components', 'copy:cdnjs']);
+  this.registerTask('release', 'Build final packages', ['amd', 'uglify', 'test:min', 'copy:dist', 'copy:components', 'copy:cdnjs']);
 
   // Load tasks from npm
   grunt.loadNpmTasks('grunt-contrib-clean');
@@ -238,7 +224,6 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-contrib-watch');
   grunt.loadNpmTasks('grunt-babel');
   grunt.loadNpmTasks('grunt-bg-shell');
-  grunt.loadNpmTasks('grunt-eslint');
   grunt.loadNpmTasks('@knappi/grunt-saucelabs');
   grunt.loadNpmTasks('grunt-webpack');
 
diff --git a/bench/.eslintrc b/bench/.eslintrc
index e03f181ed..823629cd7 100644
--- a/bench/.eslintrc
+++ b/bench/.eslintrc
@@ -1,4 +1,5 @@
 {
+  "extends": "prettier",
   "globals": {
     "require": true
   },
@@ -11,4 +12,4 @@
     "handle-callback-err": 0,
     "no-console": 0
   }
-}
\ No newline at end of file
+}
diff --git a/integration-testing/multi-nodejs-test/.eslintrc.js b/integration-testing/multi-nodejs-test/.eslintrc.js
index 7f583d1c5..fcc705596 100644
--- a/integration-testing/multi-nodejs-test/.eslintrc.js
+++ b/integration-testing/multi-nodejs-test/.eslintrc.js
@@ -1,12 +1,13 @@
 module.exports = {
-  "extends": "eslint:recommended",
-  "globals": {
-    "self": false
+  extends: ['eslint:recommended', 'plugin:es5/no-es2015', 'prettier'],
+  globals: {
+    self: false
   },
-  "env": {
-    "node": true
+  env: {
+    node: true
   },
-  "rules": {
-    'no-console': 'off'
+  rules: {
+    'no-console': 'off',
+    'no-var': 'off'
   }
-}
\ No newline at end of file
+};
diff --git a/package-lock.json b/package-lock.json
index 6ed12f6bb..3a36a15af 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,66 @@
 {
   "name": "handlebars",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@babel/code-frame": {
+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
+      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
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@@ -7866,6 +9147,12 @@
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@@ -7908,6 +9195,17 @@
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@@ -8095,7 +9406,7 @@
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@@ -8339,6 +9650,12 @@
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+    "type-fest": {
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+      "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.6.0.tgz",
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@@ -8580,6 +9897,12 @@
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@@ -8873,6 +10196,12 @@
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diff --git a/package.json b/package.json
index 74749d86b..df72801d3 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,8 @@
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     "dustjs-linkedin": "^2.0.2",
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@@ -52,13 +54,15 @@
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     "grunt-webpack": "^1.0.8",
+    "husky": "^3.1.0",
     "istanbul": "^0.3.0",
     "jison": "~0.3.0",
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     "mocha": "^5",
     "mock-stdin": "^0.3.0",
     "mustache": "^2.1.3",
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     "sinon": "^7.5.0",
     "typescript": "^3.4.3",
@@ -76,6 +80,9 @@
     "handlebars": "bin/handlebars"
   },
   "scripts": {
+    "format": "prettier --write '**/*.js' && eslint --fix .",
+    "check-format": "prettier --check '**/*.js'",
+    "lint": "eslint .",
     "checkTypes": "dtslint types",
     "test": "grunt"
   },
@@ -98,5 +105,20 @@
     "release-notes.md",
     "runtime.js",
     "types/*.d.ts"
-  ]
+  ],
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
+  "lint-staged": {
+    "*.{js,css,json,md}": [
+      "prettier --write",
+      "git add"
+    ],
+    "*.js": [
+      "eslint --fix",
+      "git add"
+    ]
+  }
 }
diff --git a/prettier.config.js b/prettier.config.js
new file mode 100644
index 000000000..6593a6b7d
--- /dev/null
+++ b/prettier.config.js
@@ -0,0 +1,5 @@
+module.exports = {
+  tabWidth: 2,
+  semi: true,
+  singleQuote: true
+};
diff --git a/spec/.eslintrc b/spec/.eslintrc
index 4bec97f44..076b25a8e 100644
--- a/spec/.eslintrc
+++ b/spec/.eslintrc
@@ -1,7 +1,8 @@
 {
   "extends": [
     "../.eslintrc.js",
-    "plugin:es5/no-es2015"
+    "plugin:es5/no-es2015",
+    "prettier"
   ],
   "plugins": [
     "es5"
@@ -43,4 +44,4 @@
     "no-var": "off",
     "dot-notation": "off"
   }
-}
\ No newline at end of file
+}
diff --git a/spec/amd-runtime.html b/spec/amd-runtime.html
index fc413bd67..4cbfd5ca0 100644
--- a/spec/amd-runtime.html
+++ b/spec/amd-runtime.html
@@ -26,8 +26,8 @@
       window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-    <script src="/spec/env/json2.js"></script>
-    <script src="/spec/env/require.js"></script>
+    <script src="/spec/vendor/json2.js"></script>
+    <script src="/spec/vendor/require.js"></script>
 
     <script src="/spec/env/common.js"></script>
     <script>
diff --git a/spec/amd.html b/spec/amd.html
index 9ec44e686..1f783e02c 100644
--- a/spec/amd.html
+++ b/spec/amd.html
@@ -27,8 +27,8 @@
       window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-    <script src="/spec/env/json2.js"></script>
-    <script src="/spec/env/require.js"></script>
+    <script src="/spec/vendor/json2.js"></script>
+    <script src="/spec/vendor/require.js"></script>
 
     <script src="/spec/env/common.js"></script>
     <script>
diff --git a/spec/index.html b/spec/index.html
index b768dff76..3f2068ed1 100644
--- a/spec/index.html
+++ b/spec/index.html
@@ -28,7 +28,7 @@
       mocha.setup('bdd');
     </script>
     <script src="/dist/handlebars.js"></script>
-    <script src="/spec/env/json2.js"></script>
+    <script src="/spec/vendor/json2.js"></script>
     <script src="/spec/env/common.js"></script>
     <script>
       var CompilerContext = {
diff --git a/spec/umd-runtime.html b/spec/umd-runtime.html
index 212d4f2dc..49b721ded 100644
--- a/spec/umd-runtime.html
+++ b/spec/umd-runtime.html
@@ -26,8 +26,8 @@
       window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-    <script src="/spec/env/json2.js"></script>
-    <script src="/spec/env/require.js"></script>
+    <script src="/spec/vendor/json2.js"></script>
+    <script src="/spec/vendor/require.js"></script>
 
     <script src="/spec/env/common.js"></script>
     <script>
diff --git a/spec/umd.html b/spec/umd.html
index 53d6b2716..ae461ed69 100644
--- a/spec/umd.html
+++ b/spec/umd.html
@@ -27,8 +27,8 @@
       window.expect = chai.expect;
       mocha.setup('bdd');
     </script>
-    <script src="/spec/env/json2.js"></script>
-    <script src="/spec/env/require.js"></script>
+    <script src="/spec/vendor/json2.js"></script>
+    <script src="/spec/vendor/require.js"></script>
 
     <script src="/spec/env/common.js"></script>
     <script>
diff --git a/spec/env/json2.js b/spec/vendor/json2.js
similarity index 100%
rename from spec/env/json2.js
rename to spec/vendor/json2.js
diff --git a/spec/env/require.js b/spec/vendor/require.js
similarity index 100%
rename from spec/env/require.js
rename to spec/vendor/require.js

From e913dc5f12249299605dcacfa61453d8c40d0b2e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Dec 2019 22:00:18 +0100
Subject: [PATCH 125/191] chore: restructure build commands

- move dtslint (checkTypes) away from Gruntfile.js
  (as it disturbs debugging `grunt`)
  and call it directly as npm-script in travis-ci
- re-group task definition in Gruntfile.js
- use a multi-job travis build to
  run linting, format, dtslint and tests
  in parallel
- run only "npm test" on appveyor
- rename Grunt-tasks for be more descriptive
- SAUCE_USERNAME is not a secret variable anymore
  it can be easily guessed anyway and the
  [secure] value messes up with a lot of the
  log output

- linting on commit disable during transition
---
 .travis.yml                                   |  61 ++++--
 CONTRIBUTING.md                               |  40 +++-
 Gruntfile.js                                  |  47 +++--
 appveyor.yml                                  |   7 +-
 integration-testing/multi-nodejs-test/test.sh |   5 +-
 package-lock.json                             | 199 ++++++++++++++++++
 package.json                                  |  13 +-
 7 files changed, 310 insertions(+), 62 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index a6b141a22..a5ff4c692 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,28 +1,47 @@
 language: node_js
-before_install:
-- npm install -g grunt-cli
-script:
-- npm run lint
-- npm run check-format
-- grunt --stack travis
+
+jobs:
+  include:
+    - stage: test
+      name: "check javascript (eslint)"
+      node_js: lts/*
+      script: npm run lint
+
+    - stage: test
+      name: "check formatting (prettier)"
+      node_js: lts/*
+      script: npm run check-format
+
+    - stage: test
+      name: "check typescript definitions (dtslint)"
+      node_js: lts/*
+      script: npm run dtslint
+
+    - stage: test
+      name: "extensive tests and publish to aws"
+      script: npm run extensive-tests-and-publish-to-aws
+      env:
+        - S3_BUCKET_NAME=builds.handlebarsjs.com
+        - secure: ckyEe5dzjdFDjmZ6wIrhGm0CFBEnKq8c1dYptfgVV/Q5/nJFGzu8T0yTjouS/ERxzdT2H327/63VCxhFnLCRHrsh4rlW/rCy4XI3O/0TeMLgFPa4TXkO8359qZ4CB44TBb3NsJyQXNMYdJpPLTCVTMpuiqqkFFOr+6OeggR7ufA=
+        - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
+        - SAUCE_USERNAME=handlebars
+        - secure: yERYCf7AwL11D9uMtacly/THGV8BlzsMmrt+iQVvGA3GaY6QMmfYqf6P6cCH98sH5etd1Y+1e6YrPeMjqI6lyRllT7FptoyOdHulazQe86VQN4sc0EpqMlH088kB7gGjTut9Z+X9ViooT5XEh9WA5jXEI9pXhQJNoIHkWPuwGuY=
+      node_js: "10"
+
+    - stage: test
+      name: "test with latest nodejs-lts"
+      node_js: lts/*
+      script: npm run test
+
+    - stage: test
+      name: "test with active nodejs"
+      node_js: node
+      script: npm run test
+
+cache: npm
 email:
   on_failure: change
   on_success: never
-env:
-  global:
-  - S3_BUCKET_NAME=builds.handlebarsjs.com
-  - secure: ckyEe5dzjdFDjmZ6wIrhGm0CFBEnKq8c1dYptfgVV/Q5/nJFGzu8T0yTjouS/ERxzdT2H327/63VCxhFnLCRHrsh4rlW/rCy4XI3O/0TeMLgFPa4TXkO8359qZ4CB44TBb3NsJyQXNMYdJpPLTCVTMpuiqqkFFOr+6OeggR7ufA=
-  - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
-matrix:
-  include:
-  - node_js: '10'
-    env:
-    - PUBLISH=true
-    - secure: pLTzghtVll9yGKJI0AaB0uI8GypfWxLTaIB0ZL8//yN3nAEIKMhf/RRilYTsn/rKj2NUa7vt2edYILi3lttOUlCBOwTc9amiRms1W8Lwr/3IdWPeBLvLuH1zNJRm2lBAwU4LBSqaOwhGaxOQr6KHTnWudhNhgOucxpZfvfI/dFw=
-    - secure: yERYCf7AwL11D9uMtacly/THGV8BlzsMmrt+iQVvGA3GaY6QMmfYqf6P6cCH98sH5etd1Y+1e6YrPeMjqI6lyRllT7FptoyOdHulazQe86VQN4sc0EpqMlH088kB7gGjTut9Z+X9ViooT5XEh9WA5jXEI9pXhQJNoIHkWPuwGuY=
-cache:
-  directories:
-  - node_modules
 
 git:
   depth: 100
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5dc1c9fb5..d26df5ca9 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,8 +12,8 @@ Documentation issues on the handlebarsjs.com site should be reported on [handleb
 
 ## Branches
 
-* The branch `4.x` contains the currently released version. Bugfixes should be made in this branch.
-* The branch `master` contains the next version. A release date is not yet specified. Maintainers
+- The branch `4.x` contains the currently released version. Bugfixes should be made in this branch.
+- The branch `master` contains the next version. A release date is not yet specified. Maintainers
   should merge the branch `4.x` into the master branch regularly.
 
 ## Pull Requests
@@ -21,6 +21,7 @@ Documentation issues on the handlebarsjs.com site should be reported on [handleb
 We also accept [pull requests][pull-request]!
 
 Generally we like to see pull requests that
+
 - Maintain the existing code style
 - Are focused on a single change (i.e. avoid large refactoring or style adjustments in untouched code if not the primary goal of the pull request)
 - Have [good commit messages](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html)
@@ -31,8 +32,8 @@ Generally we like to see pull requests that
 
 To build Handlebars.js you'll need a few things installed.
 
-* Node.js
-* [Grunt](http://gruntjs.com/getting-started)
+- Node.js
+- [Grunt](http://gruntjs.com/getting-started)
 
 Before building, you need to make sure that the Git submodule `spec/mustache` is included (i.e. the directory `spec/mustache` should not be empty). To include it, if using Git version 1.6.5 or newer, use `git clone --recursive` rather than `git clone`. Or, if you already cloned without `--recursive`, use `git submodule update --init`.
 
@@ -51,11 +52,13 @@ If you notice any problems, please report them to the GitHub issue tracker at
 ##Running Tests
 
 To run tests locally, first install all dependencies.
+
 ```sh
 npm install
 ```
 
 Clone the mustache specs into the spec/mustache folder.
+
 ```sh
 cd spec
 rm -r mustache
@@ -63,10 +66,29 @@ git clone https://github.com/mustache/spec.git mustache
 ```
 
 From the root directory, run the tests.
+
 ```sh
 npm test
 ```
 
+## Linting and Formatting
+
+Handlebars uses `eslint` to enforce best-practices and `prettier` to auto-format files.
+We do linting and formatting in two phases:
+
+- Committed files are linted and formatted in a pre-commit hook. In this stage eslint-errors are forbidden,
+  while warnings are allowed.
+- The travis-ci job also lints all files and checks if they are formatted correctly. In this stage, warnings
+  are forbidden.
+
+You can use the following scripts to make sure that the travis-job does not fail:
+
+- **npm run lint** will run `eslint` and fail on warnings
+- **npm run format** will run `prettier` on all files
+- **npm run check-before-pull-request** will perform all most checks that travis does in its build-job, excluding the "integration-test".
+- **npm run integration-test** will run integration tests (using old NodeJS versions and integrations with webpack, babel and so on)
+  These tests only work on a Linux-machine with `nvm` installed (for running tests in multiple versions of NodeJS).
+
 ## Ember testing
 
 The current ember distribution should be tested as part of the handlebars release process. This requires building the `handlebars-source` gem locally and then executing the ember test script.
@@ -83,7 +105,7 @@ npm test
 
 ## Releasing the latest version
 
-*When releasing a previous version of Handlebars, please look into the CONTRIBUNG.md in the corresponding branch.*
+_When releasing a previous version of Handlebars, please look into the CONTRIBUNG.md in the corresponding branch._
 
 Handlebars utilizes the [release yeoman generator][generator-release] to perform most release tasks.
 
@@ -103,10 +125,10 @@ gem push handlebars-source-*.gem
 After the release, you should check that all places have really been updated. Especially verify that the `latest`-tags
 in those places still point to the latest version
 
-* [The npm-package](https://www.npmjs.com/package/handlebars) (check latest-tag)
-* [The bower package](https://github.com/components/handlebars.js) (check the package.json)
-* [The AWS S3 Bucket](https://s3.amazonaws.com/builds.handlebarsjs.com) (check latest-tag)
-* [RubyGems](https://rubygems.org/gems/handlebars-source)
+- [The npm-package](https://www.npmjs.com/package/handlebars) (check latest-tag)
+- [The bower package](https://github.com/components/handlebars.js) (check the package.json)
+- [The AWS S3 Bucket](https://s3.amazonaws.com/builds.handlebarsjs.com) (check latest-tag)
+- [RubyGems](https://rubygems.org/gems/handlebars-source)
 
 When everything is OK, the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.
 
diff --git a/Gruntfile.js b/Gruntfile.js
index a471f67e7..d91783f5f 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -175,11 +175,6 @@ module.exports = function(grunt) {
     },
 
     bgShell: {
-      checkTypes: {
-        cmd: 'npm run checkTypes',
-        bg: false,
-        fail: true
-      },
       integrationTests: {
         cmd: './integration-testing/run-integration-tests.sh',
         bg: false,
@@ -195,25 +190,11 @@ module.exports = function(grunt) {
         },
 
         files: ['src/*', 'lib/**/*.js', 'spec/**/*.js'],
-        tasks: ['build', 'amd', 'tests', 'test']
+        tasks: ['on-file-change']
       }
     }
   });
 
-  // Build a new version of the library
-  this.registerTask('build', 'Builds a distributable version of the current project', [
-                    'bgShell:checkTypes',
-                    'parser',
-                    'node',
-                    'globals']);
-
-  this.registerTask('amd', ['babel:amd', 'requirejs']);
-  this.registerTask('node', ['babel:cjs']);
-  this.registerTask('globals', ['webpack']);
-  this.registerTask('tests', ['concat:tests']);
-
-  this.registerTask('release', 'Build final packages', ['amd', 'uglify', 'test:min', 'copy:dist', 'copy:components', 'copy:cdnjs']);
-
   // Load tasks from npm
   grunt.loadNpmTasks('grunt-contrib-clean');
   grunt.loadNpmTasks('grunt-contrib-concat');
@@ -229,11 +210,33 @@ module.exports = function(grunt) {
 
   grunt.task.loadTasks('tasks');
 
+  this.registerTask(
+      'build',
+      'Builds a distributable version of the current project',
+      ['parser', 'node', 'globals']
+  );
+
+  this.registerTask('node', ['babel:cjs']);
+  this.registerTask('globals', ['webpack']);
+
+  this.registerTask('release', 'Build final packages', [
+    'amd',
+    'uglify',
+    'test:min',
+    'copy:dist',
+    'copy:components',
+    'copy:cdnjs'
+  ]);
+
+  this.registerTask('amd', ['babel:amd', 'requirejs']);
+
   grunt.registerTask('bench', ['metrics']);
   grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
+  // Requires secret properties (saucelabs-credentials etc.) from .travis.yaml
+  grunt.registerTask('extensive-tests-and-publish-to-aws', ['default', 'bgShell:integrationTests', 'sauce', 'metrics', 'publish:latest']);
+  grunt.registerTask('on-file-change', ['build', 'amd', 'concat:tests', 'test']);
 
-  grunt.registerTask('travis', process.env.PUBLISH ? ['default', 'bgShell:integrationTests', 'sauce', 'metrics', 'publish:latest'] : ['default']);
-
+  // === Primary tasks ===
   grunt.registerTask('dev', ['clean', 'connect', 'watch']);
   grunt.registerTask('default', ['clean', 'build', 'test', 'release']);
   grunt.registerTask('integration-tests', ['default', 'bgShell:integrationTests']);
diff --git a/appveyor.yml b/appveyor.yml
index 563aaf93c..499e57995 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -13,8 +13,7 @@ install:
   # Clone submodules (mustache spec)
   - cmd: git submodule update --init --recursive
   # Install modules
-  - cmd: npm install
-  - cmd: npm install -g grunt-cli
+  - cmd: npm ci
 
 
 # Post-install test scripts
@@ -23,7 +22,7 @@ test_script:
   - cmd: node --version
   - cmd: npm --version
   # Run tests
-  - cmd: grunt --stack travis
+  - cmd: npm run test
 
 # Don't actually build
 build: off
@@ -34,4 +33,4 @@ on_failure:
 
 
 # Set build version format here instead of in the admin panel
-version: "{build}"
\ No newline at end of file
+version: "{build}"
diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index 953949bb2..db2caf854 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -12,7 +12,8 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 # It does (almost) not test for correctness, because that is already done in the mocha-tests.
 # And it does not use any NodeJS based testing framwork to make this part independent of the Node version.
 
-# A list of NodeJS versions is expected as cli-args
+unset npm_config_prefix
+
 echo "Handlebars should be able to run in various versions of NodeJS"
 for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
     rm target node_modules package-lock.json -rf
@@ -23,4 +24,4 @@ for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
     nvm exec "$i" npm run test-precompile || exit 1
 
     echo Success
-done
\ No newline at end of file
+done
diff --git a/package-lock.json b/package-lock.json
index 3a36a15af..79fc1b9c4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1561,6 +1561,193 @@
         "typedarray": "^0.0.6"
       }
     },
+    "concurrently": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-5.0.0.tgz",
+      "integrity": "sha512-1yDvK8mduTIdxIxV9C60KoiOySUl/lfekpdbI+U5GXaPrgdffEavFa9QZB3vh68oWOpbCC+TuvxXV9YRPMvUrA==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.2",
+        "date-fns": "^2.0.1",
+        "lodash": "^4.17.15",
+        "read-pkg": "^4.0.1",
+        "rxjs": "^6.5.2",
+        "spawn-command": "^0.0.2-1",
+        "supports-color": "^4.5.0",
+        "tree-kill": "^1.2.1",
+        "yargs": "^12.0.5"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          },
+          "dependencies": {
+            "supports-color": {
+              "version": "5.5.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+              "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+              "dev": true,
+              "requires": {
+                "has-flag": "^3.0.0"
+              }
+            }
+          }
+        },
+        "cliui": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
+          "integrity": "sha512-4FG+RSG9DL7uEwRUZXZn3SS34DiDPfzP0VOiEwtUWlE+AR2EIg+hSyvrIgUUfhdgR/UkAeW2QHgeP+hWrXs7jQ==",
+          "dev": true,
+          "requires": {
+            "string-width": "^2.1.1",
+            "strip-ansi": "^4.0.0",
+            "wrap-ansi": "^2.0.0"
+          }
+        },
+        "date-fns": {
+          "version": "2.8.1",
+          "resolved": "https://registry.npmjs.org/date-fns/-/date-fns-2.8.1.tgz",
+          "integrity": "sha512-EL/C8IHvYRwAHYgFRse4MGAPSqlJVlOrhVYZ75iQBKrnv+ZedmYsgwH3t+BCDuZDXpoo07+q9j4qgSSOa7irJg==",
+          "dev": true
+        },
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "invert-kv": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/invert-kv/-/invert-kv-2.0.0.tgz",
+          "integrity": "sha512-wPVv/y/QQ/Uiirj/vh3oP+1Ww+AWehmi1g5fFWGPF6IpCBCDVrhgHRMvrLfdYcwDh3QJbGXDW4JAuzxElLSqKA==",
+          "dev": true
+        },
+        "lcid": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/lcid/-/lcid-2.0.0.tgz",
+          "integrity": "sha512-avPEb8P8EGnwXKClwsNUgryVjllcRqtMYa49NTsbQagYuT1DcXnl1915oxWjoyGrXR6zH/Y0Zc96xWsPcoDKeA==",
+          "dev": true,
+          "requires": {
+            "invert-kv": "^2.0.0"
+          }
+        },
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        },
+        "os-locale": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-3.1.0.tgz",
+          "integrity": "sha512-Z8l3R4wYWM40/52Z+S265okfFj8Kt2cC2MKY+xNi3kFs+XGI7WXu/I309QQQYbRW4ijiZ+yxs9pqEhJh0DqW3Q==",
+          "dev": true,
+          "requires": {
+            "execa": "^1.0.0",
+            "lcid": "^2.0.0",
+            "mem": "^4.0.0"
+          }
+        },
+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "requires": {
+            "error-ex": "^1.3.1",
+            "json-parse-better-errors": "^1.0.1"
+          }
+        },
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
+        },
+        "read-pkg": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-4.0.1.tgz",
+          "integrity": "sha1-ljYlN48+HE1IyFhytabsfV0JMjc=",
+          "dev": true,
+          "requires": {
+            "normalize-package-data": "^2.3.2",
+            "parse-json": "^4.0.0",
+            "pify": "^3.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        },
+        "supports-color": {
+          "version": "4.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-4.5.0.tgz",
+          "integrity": "sha1-vnoN5ITexcXN34s9WRJQRJEvY1s=",
+          "dev": true,
+          "requires": {
+            "has-flag": "^2.0.0"
+          },
+          "dependencies": {
+            "has-flag": {
+              "version": "2.0.0",
+              "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-2.0.0.tgz",
+              "integrity": "sha1-6CB68cx7MNRGzHC3NLXovhj4jVE=",
+              "dev": true
+            }
+          }
+        },
+        "yargs": {
+          "version": "12.0.5",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
+          "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+          "dev": true,
+          "requires": {
+            "cliui": "^4.0.0",
+            "decamelize": "^1.2.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^1.0.1",
+            "os-locale": "^3.0.0",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^1.0.1",
+            "set-blocking": "^2.0.0",
+            "string-width": "^2.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^3.2.1 || ^4.0.0",
+            "yargs-parser": "^11.1.1"
+          }
+        }
+      }
+    },
     "connect": {
       "version": "3.6.6",
       "resolved": "https://registry.npmjs.org/connect/-/connect-3.6.6.tgz",
@@ -9012,6 +9199,12 @@
       "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM=",
       "dev": true
     },
+    "spawn-command": {
+      "version": "0.0.2-1",
+      "resolved": "https://registry.npmjs.org/spawn-command/-/spawn-command-0.0.2-1.tgz",
+      "integrity": "sha1-YvXpRmmBwbeW3Fkpk34RycaSG9A=",
+      "dev": true
+    },
     "spdx-correct": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
@@ -9484,6 +9677,12 @@
         }
       }
     },
+    "tree-kill": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/tree-kill/-/tree-kill-1.2.1.tgz",
+      "integrity": "sha512-4hjqbObwlh2dLyW4tcz0Ymw0ggoaVDMveUB9w8kFSQScdRLo0gxO9J7WFcUBo+W3C1TLdFIEwNOWebgZZ0RH9Q==",
+      "dev": true
+    },
     "trim-newlines": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/trim-newlines/-/trim-newlines-1.0.0.tgz",
diff --git a/package.json b/package.json
index df72801d3..a925e0a65 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "babel-runtime": "^5.1.10",
     "benchmark": "~1.0",
     "chai": "^4.2.0",
+    "concurrently": "^5.0.0",
     "dirty-chai": "^2.0.1",
     "dtslint": "^0.5.5",
     "dustjs-linkedin": "^2.0.2",
@@ -82,9 +83,13 @@
   "scripts": {
     "format": "prettier --write '**/*.js' && eslint --fix .",
     "check-format": "prettier --check '**/*.js'",
-    "lint": "eslint .",
-    "checkTypes": "dtslint types",
-    "test": "grunt"
+    "lint": "eslint --max-warnings 0 . ",
+    "dtslint": "dtslint types",
+    "test": "grunt",
+    "extensive-tests-and-publish-to-aws": "grunt --stack extensive-tests-and-publish-to-aws",
+    "integration-test": "grunt integration-tests",
+    "--- combined tasks ---": "",
+    "check-before-pull-request": "concurrently --kill-others-on-fail npm:lint npm:dtslint npm:check-format npm:test"
   },
   "jspm": {
     "main": "handlebars",
@@ -108,7 +113,7 @@
   ],
   "husky": {
     "hooks": {
-      "pre-commit": "lint-staged"
+      "pre-commit": "true || lint-staged"
     }
   },
   "lint-staged": {

From e97685e989526a501d5884a9c265891d52bf3a3e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Dec 2019 22:37:15 +0100
Subject: [PATCH 126/191] style: reformat all files using prettier

---
 Gruntfile.js                                  | 146 ++-
 bench/dist-size.js                            |  17 +-
 bench/index.js                                |   2 +-
 bench/precompile-size.js                      |  13 +-
 bench/templates/arguments.js                  |   3 +-
 bench/templates/array-each.js                 |   9 +-
 bench/templates/array-mustache.js             |   9 +-
 bench/templates/complex.js                    |   6 +-
 bench/templates/data.js                       |   9 +-
 bench/templates/depth-1.js                    |  10 +-
 bench/templates/depth-2.js                    |  16 +-
 bench/templates/index.js                      |   2 +-
 bench/templates/partial-recursion.js          |   5 +-
 bench/templates/partial.js                    |  12 +-
 bench/templates/paths.js                      |   8 +-
 bench/templates/variables.js                  |   3 +-
 bench/throughput.js                           |  76 +-
 bench/util/benchwarmer.js                     |  69 +-
 bench/util/template-runner.js                 |   6 +-
 .../multi-nodejs-test/run-handlebars.js       |   2 +-
 .../src/handlebars-inline-precompile-test.js  |  10 +-
 .../webpack-babel-test/src/lib/assert.js      |   6 +-
 .../webpack-babel-test/webpack.config.js      |  48 +-
 .../handlebars-default-import-pre-4.2-test.js |   4 +-
 .../src/handlebars-default-import-test.js     |   5 +-
 .../src/handlebars-loader-test.js             |  10 +-
 .../src/handlebars-require-vs-import-test.js  |   6 +-
 ...handlebars-wildcard-import-pre-4.2-test.js |   4 +-
 .../src/handlebars-wildcard-import-test.js    |   4 +-
 .../webpack-test/src/lib/assert.js            |   6 +-
 .../webpack-test/webpack.config.js            |  26 +-
 lib/handlebars.js                             |   6 +-
 lib/handlebars/base.js                        |  20 +-
 lib/handlebars/compiler/ast.js                |  16 +-
 lib/handlebars/compiler/base.js               |   4 +-
 lib/handlebars/compiler/code-gen.js           |  37 +-
 lib/handlebars/compiler/compiler.js           | 148 ++-
 lib/handlebars/compiler/helpers.js            |  49 +-
 .../compiler/javascript-compiler.js           | 297 ++++--
 lib/handlebars/compiler/printer.js            |  31 +-
 lib/handlebars/compiler/visitor.js            |   9 +-
 lib/handlebars/compiler/whitespace-control.js |  76 +-
 lib/handlebars/decorators.js                  |   1 -
 lib/handlebars/decorators/inline.js           |   2 +-
 lib/handlebars/exception.js                   |  20 +-
 .../helpers/block-helper-missing.js           |  11 +-
 lib/handlebars/helpers/each.js                |  38 +-
 lib/handlebars/helpers/helper-missing.js      |   4 +-
 lib/handlebars/helpers/if.js                  |  18 +-
 lib/handlebars/helpers/log.js                 |   4 +-
 lib/handlebars/helpers/lookup.js              |   5 +-
 lib/handlebars/helpers/with.js                |  21 +-
 lib/handlebars/logger.js                      |  10 +-
 lib/handlebars/no-conflict.js                 |   3 +-
 lib/handlebars/runtime.js                     | 190 +++-
 lib/handlebars/utils.js                       |  27 +-
 lib/precompiler.js                            | 192 ++--
 spec/ast.js                                   | 244 +++--
 spec/basic.js                                 | 581 ++++++++---
 spec/blocks.js                                | 361 +++++--
 spec/builtins.js                              | 481 +++++++--
 spec/compiler.js                              | 147 ++-
 spec/data.js                                  | 189 +++-
 spec/env/browser.js                           |   8 +-
 spec/env/common.js                            |  66 +-
 spec/env/node.js                              |   1 -
 spec/env/runner.js                            |  20 +-
 spec/env/runtime.js                           |  14 +-
 spec/helpers.js                               | 974 +++++++++++++-----
 spec/javascript-compiler.js                   |  14 +-
 spec/parser.js                                | 358 +++++--
 spec/partials.js                              | 666 +++++++++---
 spec/precompiler.js                           | 277 +++--
 spec/regressions.js                           | 329 ++++--
 spec/require.js                               |   4 +-
 spec/runtime.js                               | 118 ++-
 spec/security.js                              | 322 +++---
 spec/source-map.js                            |  24 +-
 spec/spec.js                                  |  40 +-
 spec/strict.js                                | 195 ++--
 spec/string-params.js                         | 150 ++-
 spec/subexpressions.js                        |  96 +-
 spec/tokenizer.js                             | 443 +++++++-
 spec/track-ids.js                             | 316 ++++--
 spec/utils.js                                 |  21 +-
 spec/visitor.js                               |  78 +-
 spec/whitespace-control.js                    |  81 +-
 tasks/metrics.js                              |  15 +-
 tasks/parser.js                               |  16 +-
 tasks/publish.js                              |  47 +-
 tasks/test.js                                 |  48 +-
 tasks/util/git.js                             |  18 +-
 tasks/version.js                              |  78 +-
 93 files changed, 6238 insertions(+), 2393 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index d91783f5f..9cf025960 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -1,32 +1,42 @@
 /* eslint-disable no-process-env */
 module.exports = function(grunt) {
-
   grunt.initConfig({
     pkg: grunt.file.readJSON('package.json'),
 
-    clean: ['tmp', 'dist', 'lib/handlebars/compiler/parser.js', 'integration-testing/**/node_modules'],
+    clean: [
+      'tmp',
+      'dist',
+      'lib/handlebars/compiler/parser.js',
+      'integration-testing/**/node_modules'
+    ],
 
     copy: {
       dist: {
         options: {
           processContent: function(content) {
-            return grunt.template.process('/**!\n\n @license\n <%= pkg.name %> v<%= pkg.version %>\n\n<%= grunt.file.read("LICENSE") %>\n*/\n')
-                + content;
+            return (
+              grunt.template.process(
+                '/**!\n\n @license\n <%= pkg.name %> v<%= pkg.version %>\n\n<%= grunt.file.read("LICENSE") %>\n*/\n'
+              ) + content
+            );
           }
         },
-        files: [
-          {expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/'}
-        ]
+        files: [{ expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/' }]
       },
       cdnjs: {
         files: [
-          {expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/cdnjs'}
+          { expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/cdnjs' }
         ]
       },
       components: {
         files: [
-          {expand: true, cwd: 'components/', src: ['**'], dest: 'dist/components'},
-          {expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/components'}
+          {
+            expand: true,
+            cwd: 'components/',
+            src: ['**'],
+            dest: 'dist/components'
+          },
+          { expand: true, cwd: 'dist/', src: ['*.js'], dest: 'dist/components' }
         ]
       }
     },
@@ -41,24 +51,28 @@ module.exports = function(grunt) {
         options: {
           modules: 'amd'
         },
-        files: [{
-          expand: true,
-          cwd: 'lib/',
-          src: '**/!(index).js',
-          dest: 'dist/amd/'
-        }]
+        files: [
+          {
+            expand: true,
+            cwd: 'lib/',
+            src: '**/!(index).js',
+            dest: 'dist/amd/'
+          }
+        ]
       },
 
       cjs: {
         options: {
           modules: 'common'
         },
-        files: [{
-          cwd: 'lib/',
-          expand: true,
-          src: '**/!(index).js',
-          dest: 'dist/cjs/'
-        }]
+        files: [
+          {
+            cwd: 'lib/',
+            expand: true,
+            src: '**/!(index).js',
+            dest: 'dist/cjs/'
+          }
+        ]
       }
     },
     webpack: {
@@ -67,7 +81,12 @@ module.exports = function(grunt) {
         module: {
           loaders: [
             // the optional 'runtime' transformer tells babel to require the runtime instead of inlining it.
-            { test: /\.jsx?$/, exclude: /node_modules/, loader: 'babel-loader?optional=runtime&loose=es6.modules&auxiliaryCommentBefore=istanbul%20ignore%20next' }
+            {
+              test: /\.jsx?$/,
+              exclude: /node_modules/,
+              loader:
+                'babel-loader?optional=runtime&loose=es6.modules&auxiliaryCommentBefore=istanbul%20ignore%20next'
+            }
           ]
         },
         output: {
@@ -116,15 +135,17 @@ module.exports = function(grunt) {
         preserveComments: /(?:^!|@(?:license|preserve|cc_on))/
       },
       dist: {
-        files: [{
-          cwd: 'dist/',
-          expand: true,
-          src: ['handlebars*.js', '!*.min.js'],
-          dest: 'dist/',
-          rename: function(dest, src) {
-            return dest + src.replace(/\.js$/, '.min.js');
+        files: [
+          {
+            cwd: 'dist/',
+            expand: true,
+            src: ['handlebars*.js', '!*.min.js'],
+            dest: 'dist/',
+            rename: function(dest, src) {
+              return dest + src.replace(/\.js$/, '.min.js');
+            }
           }
-        }]
+        ]
       }
     },
 
@@ -148,28 +169,41 @@ module.exports = function(grunt) {
       all: {
         options: {
           build: process.env.TRAVIS_JOB_ID,
-          urls: ['http://localhost:9999/spec/?headless=true', 'http://localhost:9999/spec/amd.html?headless=true'],
+          urls: [
+            'http://localhost:9999/spec/?headless=true',
+            'http://localhost:9999/spec/amd.html?headless=true'
+          ],
           detailedError: true,
           concurrency: 4,
           browsers: [
-            {browserName: 'chrome'},
-            {browserName: 'firefox', platform: 'Linux'},
+            { browserName: 'chrome' },
+            { browserName: 'firefox', platform: 'Linux' },
             // {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
             // {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
-            {browserName: 'internet explorer', version: 11, platform: 'Windows 8.1'},
-            {browserName: 'internet explorer', version: 10, platform: 'Windows 8'}
+            {
+              browserName: 'internet explorer',
+              version: 11,
+              platform: 'Windows 8.1'
+            },
+            {
+              browserName: 'internet explorer',
+              version: 10,
+              platform: 'Windows 8'
+            }
           ]
         }
       },
       sanity: {
         options: {
           build: process.env.TRAVIS_JOB_ID,
-          urls: ['http://localhost:9999/spec/umd.html?headless=true', 'http://localhost:9999/spec/amd-runtime.html?headless=true', 'http://localhost:9999/spec/umd-runtime.html?headless=true'],
+          urls: [
+            'http://localhost:9999/spec/umd.html?headless=true',
+            'http://localhost:9999/spec/amd-runtime.html?headless=true',
+            'http://localhost:9999/spec/umd-runtime.html?headless=true'
+          ],
           detailedError: true,
           concurrency: 2,
-          browsers: [
-            {browserName: 'chrome'}
-          ]
+          browsers: [{ browserName: 'chrome' }]
         }
       }
     },
@@ -180,7 +214,6 @@ module.exports = function(grunt) {
         bg: false,
         fail: true
       }
-
     },
 
     watch: {
@@ -211,9 +244,9 @@ module.exports = function(grunt) {
   grunt.task.loadTasks('tasks');
 
   this.registerTask(
-      'build',
-      'Builds a distributable version of the current project',
-      ['parser', 'node', 'globals']
+    'build',
+    'Builds a distributable version of the current project',
+    ['parser', 'node', 'globals']
   );
 
   this.registerTask('node', ['babel:cjs']);
@@ -231,13 +264,30 @@ module.exports = function(grunt) {
   this.registerTask('amd', ['babel:amd', 'requirejs']);
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask('sauce', process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []);
+  grunt.registerTask(
+    'sauce',
+    process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []
+  );
   // Requires secret properties (saucelabs-credentials etc.) from .travis.yaml
-  grunt.registerTask('extensive-tests-and-publish-to-aws', ['default', 'bgShell:integrationTests', 'sauce', 'metrics', 'publish:latest']);
-  grunt.registerTask('on-file-change', ['build', 'amd', 'concat:tests', 'test']);
+  grunt.registerTask('extensive-tests-and-publish-to-aws', [
+    'default',
+    'bgShell:integrationTests',
+    'sauce',
+    'metrics',
+    'publish:latest'
+  ]);
+  grunt.registerTask('on-file-change', [
+    'build',
+    'amd',
+    'concat:tests',
+    'test'
+  ]);
 
   // === Primary tasks ===
   grunt.registerTask('dev', ['clean', 'connect', 'watch']);
   grunt.registerTask('default', ['clean', 'build', 'test', 'release']);
-  grunt.registerTask('integration-tests', ['default', 'bgShell:integrationTests']);
+  grunt.registerTask('integration-tests', [
+    'default',
+    'bgShell:integrationTests'
+  ]);
 };
diff --git a/bench/dist-size.js b/bench/dist-size.js
index d0bd24892..5bbf7ee33 100644
--- a/bench/dist-size.js
+++ b/bench/dist-size.js
@@ -1,12 +1,14 @@
 var async = require('neo-async'),
-    fs = require('fs'),
-    zlib = require('zlib');
+  fs = require('fs'),
+  zlib = require('zlib');
 
 module.exports = function(grunt, callback) {
   var distFiles = fs.readdirSync('dist'),
-      distSizes = {};
+    distSizes = {};
 
-  async.each(distFiles, function(file, callback) {
+  async.each(
+    distFiles,
+    function(file, callback) {
       var content;
       try {
         content = fs.readFileSync('dist/' + file);
@@ -32,7 +34,10 @@ module.exports = function(grunt, callback) {
       });
     },
     function() {
-      grunt.log.writeln('Distribution sizes: ' + JSON.stringify(distSizes, undefined, 2));
+      grunt.log.writeln(
+        'Distribution sizes: ' + JSON.stringify(distSizes, undefined, 2)
+      );
       callback([distSizes]);
-    });
+    }
+  );
 };
diff --git a/bench/index.js b/bench/index.js
index 3e357e54a..462b046f5 100644
--- a/bench/index.js
+++ b/bench/index.js
@@ -2,7 +2,7 @@ var fs = require('fs');
 
 var metrics = fs.readdirSync(__dirname);
 metrics.forEach(function(metric) {
-  if (metric === 'index.js' || !(/(.*)\.js$/.test(metric))) {
+  if (metric === 'index.js' || !/(.*)\.js$/.test(metric)) {
     return;
   }
 
diff --git a/bench/precompile-size.js b/bench/precompile-size.js
index 66eacd025..5aca9423c 100644
--- a/bench/precompile-size.js
+++ b/bench/precompile-size.js
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    templates = require('./templates');
+  templates = require('./templates');
 
 module.exports = function(grunt, callback) {
   // Deferring to here in case we have a build for parser, etc as part of this grunt exec
@@ -8,12 +8,17 @@ module.exports = function(grunt, callback) {
   var templateSizes = {};
   _.each(templates, function(info, template) {
     var src = info.handlebars,
-        compiled = Handlebars.precompile(src, {}),
-        knownHelpers = Handlebars.precompile(src, {knownHelpersOnly: true, knownHelpers: info.helpers});
+      compiled = Handlebars.precompile(src, {}),
+      knownHelpers = Handlebars.precompile(src, {
+        knownHelpersOnly: true,
+        knownHelpers: info.helpers
+      });
 
     templateSizes[template] = compiled.length;
     templateSizes['knownOnly_' + template] = knownHelpers.length;
   });
-  grunt.log.writeln('Precompiled sizes: ' + JSON.stringify(templateSizes, undefined, 2));
+  grunt.log.writeln(
+    'Precompiled sizes: ' + JSON.stringify(templateSizes, undefined, 2)
+  );
   callback([templateSizes]);
 };
diff --git a/bench/templates/arguments.js b/bench/templates/arguments.js
index aaa034686..f73d845f8 100644
--- a/bench/templates/arguments.js
+++ b/bench/templates/arguments.js
@@ -8,5 +8,6 @@ module.exports = {
     bar: true
   },
 
-  handlebars: '{{foo person "person" 1 true foo=bar foo="person" foo=1 foo=true}}'
+  handlebars:
+    '{{foo person "person" 1 true foo=bar foo="person" foo=1 foo=true}}'
 };
diff --git a/bench/templates/array-each.js b/bench/templates/array-each.js
index 50e1c02b8..ddf07a6fe 100644
--- a/bench/templates/array-each.js
+++ b/bench/templates/array-each.js
@@ -1,5 +1,12 @@
 module.exports = {
-  context: { names: [{name: 'Moe'}, {name: 'Larry'}, {name: 'Curly'}, {name: 'Shemp'}] },
+  context: {
+    names: [
+      { name: 'Moe' },
+      { name: 'Larry' },
+      { name: 'Curly' },
+      { name: 'Shemp' }
+    ]
+  },
   handlebars: '{{#each names}}{{name}}{{/each}}',
   dust: '{#names}{name}{/names}',
   mustache: '{{#names}}{{name}}{{/names}}',
diff --git a/bench/templates/array-mustache.js b/bench/templates/array-mustache.js
index 220c6fe47..e7b2355ac 100644
--- a/bench/templates/array-mustache.js
+++ b/bench/templates/array-mustache.js
@@ -1,4 +1,11 @@
 module.exports = {
-  context: { names: [{name: 'Moe'}, {name: 'Larry'}, {name: 'Curly'}, {name: 'Shemp'}] },
+  context: {
+    names: [
+      { name: 'Moe' },
+      { name: 'Larry' },
+      { name: 'Curly' },
+      { name: 'Shemp' }
+    ]
+  },
   handlebars: '{{#names}}{{name}}{{/names}}'
 };
diff --git a/bench/templates/complex.js b/bench/templates/complex.js
index 3e5e26c4e..545a479cb 100644
--- a/bench/templates/complex.js
+++ b/bench/templates/complex.js
@@ -7,9 +7,9 @@ module.exports = {
     },
     hasItems: true, // To make things fairer in mustache land due to no `{{if}}` construct on arrays
     items: [
-      {name: 'red', current: true, url: '#Red'},
-      {name: 'green', current: false, url: '#Green'},
-      {name: 'blue', current: false, url: '#Blue'}
+      { name: 'red', current: true, url: '#Red' },
+      { name: 'green', current: false, url: '#Green' },
+      { name: 'blue', current: false, url: '#Blue' }
     ]
   },
 
diff --git a/bench/templates/data.js b/bench/templates/data.js
index be10e8399..4cb969d66 100644
--- a/bench/templates/data.js
+++ b/bench/templates/data.js
@@ -1,4 +1,11 @@
 module.exports = {
-  context: { names: [{name: 'Moe'}, {name: 'Larry'}, {name: 'Curly'}, {name: 'Shemp'}] },
+  context: {
+    names: [
+      { name: 'Moe' },
+      { name: 'Larry' },
+      { name: 'Curly' },
+      { name: 'Shemp' }
+    ]
+  },
   handlebars: '{{#each names}}{{@index}}{{name}}{{/each}}'
 };
diff --git a/bench/templates/depth-1.js b/bench/templates/depth-1.js
index 0f2576f43..65cb33b71 100644
--- a/bench/templates/depth-1.js
+++ b/bench/templates/depth-1.js
@@ -1,5 +1,13 @@
 module.exports = {
-  context: { names: [{name: 'Moe'}, {name: 'Larry'}, {name: 'Curly'}, {name: 'Shemp'}], foo: 'bar' },
+  context: {
+    names: [
+      { name: 'Moe' },
+      { name: 'Larry' },
+      { name: 'Curly' },
+      { name: 'Shemp' }
+    ],
+    foo: 'bar'
+  },
   handlebars: '{{#each names}}{{../foo}}{{/each}}',
   mustache: '{{#names}}{{foo}}{{/names}}',
   eco: '<% for item in @names: %><%= @foo %><% end %>'
diff --git a/bench/templates/depth-2.js b/bench/templates/depth-2.js
index bff6ce850..bef804d1e 100644
--- a/bench/templates/depth-2.js
+++ b/bench/templates/depth-2.js
@@ -1,6 +1,16 @@
 module.exports = {
-  context: { names: [{bat: 'foo', name: ['Moe']}, {bat: 'foo', name: ['Larry']}, {bat: 'foo', name: ['Curly']}, {bat: 'foo', name: ['Shemp']}], foo: 'bar' },
-  handlebars: '{{#each names}}{{#each name}}{{../bat}}{{../../foo}}{{/each}}{{/each}}',
+  context: {
+    names: [
+      { bat: 'foo', name: ['Moe'] },
+      { bat: 'foo', name: ['Larry'] },
+      { bat: 'foo', name: ['Curly'] },
+      { bat: 'foo', name: ['Shemp'] }
+    ],
+    foo: 'bar'
+  },
+  handlebars:
+    '{{#each names}}{{#each name}}{{../bat}}{{../../foo}}{{/each}}{{/each}}',
   mustache: '{{#names}}{{#name}}{{bat}}{{foo}}{{/name}}{{/names}}',
-  eco: '<% for item in @names: %><% for child in item.name: %><%= item.bat %><%= @foo %><% end %><% end %>'
+  eco:
+    '<% for item in @names: %><% for child in item.name: %><%= item.bat %><%= @foo %><% end %><% end %>'
 };
diff --git a/bench/templates/index.js b/bench/templates/index.js
index 943f9cdfe..a718ea388 100644
--- a/bench/templates/index.js
+++ b/bench/templates/index.js
@@ -2,7 +2,7 @@ var fs = require('fs');
 
 var templates = fs.readdirSync(__dirname);
 templates.forEach(function(template) {
-  if (template === 'index.js' || !(/(.*)\.js$/.test(template))) {
+  if (template === 'index.js' || !/(.*)\.js$/.test(template)) {
     return;
   }
   module.exports[RegExp.$1] = require('./' + RegExp.$1);
diff --git a/bench/templates/partial-recursion.js b/bench/templates/partial-recursion.js
index b903553b5..ce3c32a74 100644
--- a/bench/templates/partial-recursion.js
+++ b/bench/templates/partial-recursion.js
@@ -1,5 +1,8 @@
 module.exports = {
-  context: { name: '1', kids: [{ name: '1.1', kids: [{name: '1.1.1', kids: []}] }] },
+  context: {
+    name: '1',
+    kids: [{ name: '1.1', kids: [{ name: '1.1.1', kids: [] }] }]
+  },
   partials: {
     mustache: { recursion: '{{name}}{{#kids}}{{>recursion}}{{/kids}}' },
     handlebars: { recursion: '{{name}}{{#each kids}}{{>recursion}}{{/each}}' }
diff --git a/bench/templates/partial.js b/bench/templates/partial.js
index 949e9c075..79a9d7dfa 100644
--- a/bench/templates/partial.js
+++ b/bench/templates/partial.js
@@ -1,8 +1,16 @@
 module.exports = {
-  context: { peeps: [{name: 'Moe', count: 15}, {name: 'Larry', count: 5}, {name: 'Curly', count: 1}] },
+  context: {
+    peeps: [
+      { name: 'Moe', count: 15 },
+      { name: 'Larry', count: 5 },
+      { name: 'Curly', count: 1 }
+    ]
+  },
   partials: {
     mustache: { variables: 'Hello {{name}}! You have {{count}} new messages.' },
-    handlebars: { variables: 'Hello {{name}}! You have {{count}} new messages.' }
+    handlebars: {
+      variables: 'Hello {{name}}! You have {{count}} new messages.'
+    }
   },
 
   handlebars: '{{#each peeps}}{{>variables}}{{/each}}',
diff --git a/bench/templates/paths.js b/bench/templates/paths.js
index fed039d51..3725e471c 100644
--- a/bench/templates/paths.js
+++ b/bench/templates/paths.js
@@ -1,7 +1,9 @@
 module.exports = {
-  context: { person: { name: {bar: {baz: 'Larry'}}, age: 45 } },
-  handlebars: '{{person.name.bar.baz}}{{person.age}}{{person.foo}}{{animal.age}}',
+  context: { person: { name: { bar: { baz: 'Larry' } }, age: 45 } },
+  handlebars:
+    '{{person.name.bar.baz}}{{person.age}}{{person.foo}}{{animal.age}}',
   dust: '{person.name.bar.baz}{person.age}{person.foo}{animal.age}',
-  eco: '<%= @person.name.bar.baz %><%= @person.age %><%= @person.foo %><% if @animal: %><%= @animal.age %><% end %>',
+  eco:
+    '<%= @person.name.bar.baz %><%= @person.age %><%= @person.foo %><% if @animal: %><%= @animal.age %><% end %>',
   mustache: '{{person.name.bar.baz}}{{person.age}}{{person.foo}}{{animal.age}}'
 };
diff --git a/bench/templates/variables.js b/bench/templates/variables.js
index 41e4feafe..fddece1bc 100644
--- a/bench/templates/variables.js
+++ b/bench/templates/variables.js
@@ -1,8 +1,7 @@
 module.exports = {
-  context: {name: 'Mick', count: 30},
+  context: { name: 'Mick', count: 30 },
   handlebars: 'Hello {{name}}! You have {{count}} new messages.',
   dust: 'Hello {name}! You have {count} new messages.',
   mustache: 'Hello {{name}}! You have {{count}} new messages.',
   eco: 'Hello <%= @name %>! You have <%= @count %> new messages.'
 };
-
diff --git a/bench/throughput.js b/bench/throughput.js
index e8ea5d910..b5e3a56a5 100644
--- a/bench/throughput.js
+++ b/bench/throughput.js
@@ -1,19 +1,27 @@
 var _ = require('underscore'),
-    runner = require('./util/template-runner'),
-
-    eco, dust, Handlebars, Mustache;
+  runner = require('./util/template-runner'),
+  eco,
+  dust,
+  Handlebars,
+  Mustache;
 
 try {
   dust = require('dustjs-linkedin');
-} catch (err) { /* NOP */ }
+} catch (err) {
+  /* NOP */
+}
 
 try {
   Mustache = require('mustache');
-} catch (err) { /* NOP */ }
+} catch (err) {
+  /* NOP */
+}
 
 try {
   eco = require('eco');
-} catch (err) { /* NOP */ }
+} catch (err) {
+  /* NOP */
+}
 
 function error() {
   throw new Error('EWOT');
@@ -22,21 +30,28 @@ function error() {
 function makeSuite(bench, name, template, handlebarsOnly) {
   // Create aliases to minimize any impact from having to walk up the closure tree.
   var templateName = name,
-
-      context = template.context,
-      partials = template.partials,
-
-      handlebarsOut,
-      compatOut,
-      dustOut,
-      ecoOut,
-      mustacheOut;
-
-  var handlebar = Handlebars.compile(template.handlebars, {data: false}),
-      compat = Handlebars.compile(template.handlebars, {data: false, compat: true}),
-      options = {helpers: template.helpers};
-  _.each(template.partials && template.partials.handlebars, function(partial, partialName) {
-    Handlebars.registerPartial(partialName, Handlebars.compile(partial, {data: false}));
+    context = template.context,
+    partials = template.partials,
+    handlebarsOut,
+    compatOut,
+    dustOut,
+    ecoOut,
+    mustacheOut;
+
+  var handlebar = Handlebars.compile(template.handlebars, { data: false }),
+    compat = Handlebars.compile(template.handlebars, {
+      data: false,
+      compat: true
+    }),
+    options = { helpers: template.helpers };
+  _.each(template.partials && template.partials.handlebars, function(
+    partial,
+    partialName
+  ) {
+    Handlebars.registerPartial(
+      partialName,
+      Handlebars.compile(partial, { data: false })
+    );
   });
 
   handlebarsOut = handlebar(context, options);
@@ -58,7 +73,9 @@ function makeSuite(bench, name, template, handlebarsOnly) {
       dustOut = false;
       dust.loadSource(dust.compile(template.dust, templateName));
 
-      dust.render(templateName, context, function(err, out) { dustOut = out; });
+      dust.render(templateName, context, function(err, out) {
+        dustOut = out;
+      });
 
       bench('dust', function() {
         dust.render(templateName, context, function() {});
@@ -84,7 +101,7 @@ function makeSuite(bench, name, template, handlebarsOnly) {
 
   if (Mustache) {
     var mustacheSource = template.mustache,
-        mustachePartials = partials && partials.mustache;
+      mustachePartials = partials && partials.mustache;
 
     if (mustacheSource) {
       mustacheOut = Mustache.to_html(mustacheSource, context, mustachePartials);
@@ -107,9 +124,16 @@ function makeSuite(bench, name, template, handlebarsOnly) {
     b = b.replace(/\s/g, '');
 
     if (handlebarsOut !== b) {
-      throw new Error('Template output mismatch: ' + name
-            + '\n\nHandlebars: ' + handlebarsOut
-            + '\n\n' + lang + ': ' + b);
+      throw new Error(
+        'Template output mismatch: ' +
+          name +
+          '\n\nHandlebars: ' +
+          handlebarsOut +
+          '\n\n' +
+          lang +
+          ': ' +
+          b
+      );
     }
   }
 
diff --git a/bench/util/benchwarmer.js b/bench/util/benchwarmer.js
index 58f138a0e..90415bf56 100644
--- a/bench/util/benchwarmer.js
+++ b/bench/util/benchwarmer.js
@@ -1,5 +1,5 @@
 var _ = require('underscore'),
-    Benchmark = require('benchmark');
+  Benchmark = require('benchmark');
 
 function BenchWarmer() {
   this.benchmarks = [];
@@ -33,16 +33,21 @@ BenchWarmer.prototype = {
       this.names.push(name);
     }
 
-    var first = this.first, suiteName = this.suiteName, self = this;
+    var first = this.first,
+      suiteName = this.suiteName,
+      self = this;
     this.first = false;
 
     var bench = new Benchmark(fn, {
       name: this.suiteName + ': ' + name,
       onComplete: function() {
-        if (first) { self.startLine(suiteName); }
+        if (first) {
+          self.startLine(suiteName);
+        }
         self.writeBench(bench);
         self.currentBenches.push(bench);
-      }, onError: function() {
+      },
+      onError: function() {
         self.errors[this.name] = this;
       }
     });
@@ -75,10 +80,14 @@ BenchWarmer.prototype = {
         });
         print('\n');
 
-        var errors = false, prop, bench;
+        var errors = false,
+          prop,
+          bench;
         for (prop in self.errors) {
-          if (Object.prototype.hasOwnProperty.call(self, prop)
-              && self.errors[prop].error.message !== 'EWOT') {
+          if (
+            Object.prototype.hasOwnProperty.call(self, prop) &&
+            self.errors[prop].error.message !== 'EWOT'
+          ) {
             errors = true;
             break;
           }
@@ -107,23 +116,39 @@ BenchWarmer.prototype = {
   },
 
   scaleTimes: function() {
-    var scaled = this.scaled = {};
-    _.each(this.times, function(times, name) {
-      var output = scaled[name] = {};
-
-      _.each(times, function(time, lang) {
-        output[lang] = ((time - this.minimum) / (this.maximum - this.minimum) * 100).toFixed(2);
-      }, this);
-    }, this);
+    var scaled = (this.scaled = {});
+    _.each(
+      this.times,
+      function(times, name) {
+        var output = (scaled[name] = {});
+
+        _.each(
+          times,
+          function(time, lang) {
+            output[lang] = (
+              ((time - this.minimum) / (this.maximum - this.minimum)) *
+              100
+            ).toFixed(2);
+          },
+          this
+        );
+      },
+      this
+    );
   },
 
   printHeader: function(title, winners) {
-    var benchSize = 0, names = this.names, i, l;
+    var benchSize = 0,
+      names = this.names,
+      i,
+      l;
 
     for (i = 0, l = names.length; i < l; i++) {
       var name = names[i];
 
-      if (benchSize < name.length) { benchSize = name.length; }
+      if (benchSize < name.length) {
+        benchSize = name.length;
+      }
     }
 
     this.nameSize = benchSize + 2;
@@ -146,7 +171,9 @@ BenchWarmer.prototype = {
   },
 
   startLine: function(name) {
-    var winners = Benchmark.map(this.winners(this.currentBenches), function(bench) {
+    var winners = Benchmark.map(this.winners(this.currentBenches), function(
+      bench
+    ) {
       return bench.name.split(': ')[1];
     });
 
@@ -164,9 +191,9 @@ BenchWarmer.prototype = {
 
     if (!bench.error) {
       var count = bench.hz,
-          moe = count * bench.stats.rme / 100,
-          minimum,
-          maximum;
+        moe = (count * bench.stats.rme) / 100,
+        minimum,
+        maximum;
 
       count = Math.round(count / 1000);
       moe = Math.round(moe / 1000);
diff --git a/bench/util/template-runner.js b/bench/util/template-runner.js
index b492ff3af..370e157ec 100644
--- a/bench/util/template-runner.js
+++ b/bench/util/template-runner.js
@@ -1,12 +1,12 @@
 var _ = require('underscore'),
-    BenchWarmer = require('./benchwarmer'),
-    templates = require('../templates');
+  BenchWarmer = require('./benchwarmer'),
+  templates = require('../templates');
 
 module.exports = function(grunt, makeSuite, callback) {
   var warmer = new BenchWarmer();
 
   var handlebarsOnly = grunt.option('handlebars-only'),
-      grep = grunt.option('grep');
+    grep = grunt.option('grep');
   if (grep) {
     grep = new RegExp(grep);
   }
diff --git a/integration-testing/multi-nodejs-test/run-handlebars.js b/integration-testing/multi-nodejs-test/run-handlebars.js
index 9aded26cf..6b0cbdca6 100755
--- a/integration-testing/multi-nodejs-test/run-handlebars.js
+++ b/integration-testing/multi-nodejs-test/run-handlebars.js
@@ -5,7 +5,7 @@ var Handlebars = require('handlebars');
 console.log('Testing built Handlebars with Node version ' + process.version);
 
 var template = Handlebars.compile('Author: {{author}}');
-var output = template({author: 'Yehuda'});
+var output = template({ author: 'Yehuda' });
 assert.strictEqual(output, 'Author: Yehuda');
 
 console.log('Success');
diff --git a/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js b/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
index 7f764e328..2d54945c8 100644
--- a/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
+++ b/integration-testing/webpack-babel-test/src/handlebars-inline-precompile-test.js
@@ -1,12 +1,12 @@
-import * as Handlebars from 'handlebars/runtime'
+import * as Handlebars from 'handlebars/runtime';
 import hbs from 'handlebars-inline-precompile';
-import {assertEquals} from "../../webpack-test/src/lib/assert";
+import { assertEquals } from '../../webpack-test/src/lib/assert';
 
 Handlebars.registerHelper('loud', function(text) {
-    return text.toUpperCase();
+  return text.toUpperCase();
 });
 
 const template = hbs`{{loud name}}`;
-const output = template({name: 'yehuda'})
+const output = template({ name: 'yehuda' });
 
-assertEquals(output, 'YEHUDA')
\ No newline at end of file
+assertEquals(output, 'YEHUDA');
diff --git a/integration-testing/webpack-babel-test/src/lib/assert.js b/integration-testing/webpack-babel-test/src/lib/assert.js
index 9f33188db..00095006a 100644
--- a/integration-testing/webpack-babel-test/src/lib/assert.js
+++ b/integration-testing/webpack-babel-test/src/lib/assert.js
@@ -1,5 +1,5 @@
 export function assertEquals(actual, expected) {
-    if (actual !== expected) {
-        throw new Error(`Expected "${actual}" to equal "${expected}"`);
-    }
+  if (actual !== expected) {
+    throw new Error(`Expected "${actual}" to equal "${expected}"`);
+  }
 }
diff --git a/integration-testing/webpack-babel-test/webpack.config.js b/integration-testing/webpack-babel-test/webpack.config.js
index 9ad0a09b2..bebb6ee0e 100644
--- a/integration-testing/webpack-babel-test/webpack.config.js
+++ b/integration-testing/webpack-babel-test/webpack.config.js
@@ -3,30 +3,30 @@ const fs = require('fs');
 const testFiles = fs.readdirSync('src');
 const entryPoints = {};
 testFiles
-    .filter(file => file.match(/-test.js$/))
-    .forEach(file => {
-        entryPoints[file] = `./src/${file}`;
-    });
+  .filter(file => file.match(/-test.js$/))
+  .forEach(file => {
+    entryPoints[file] = `./src/${file}`;
+  });
 
 module.exports = {
-    entry: entryPoints,
-    output: {
-        filename: '[name]',
-        path: __dirname + '/dist'
-    },
-    module: {
-        rules: [
-            {
-                test: /\.js?$/,
-                exclude: /node_modules/,
-                use: {
-                    loader: 'babel-loader',
-                    options: { cacheDirectory: false },
-                }
-            }
-        ]
-    },
-    optimization: {
-        minimize: false
-    }
+  entry: entryPoints,
+  output: {
+    filename: '[name]',
+    path: __dirname + '/dist'
+  },
+  module: {
+    rules: [
+      {
+        test: /\.js?$/,
+        exclude: /node_modules/,
+        use: {
+          loader: 'babel-loader',
+          options: { cacheDirectory: false }
+        }
+      }
+    ]
+  },
+  optimization: {
+    minimize: false
+  }
 };
diff --git a/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js b/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
index 6bc630da3..b7ffe7119 100644
--- a/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
+++ b/integration-testing/webpack-test/src/handlebars-default-import-pre-4.2-test.js
@@ -1,6 +1,6 @@
 import Handlebars from 'handlebars/dist/handlebars';
 
-import {assertEquals} from './lib/assert';
+import { assertEquals } from './lib/assert';
 
 const template = Handlebars.compile('Author: {{author}}');
-assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
+assertEquals(template({ author: 'Yehuda' }), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-default-import-test.js b/integration-testing/webpack-test/src/handlebars-default-import-test.js
index 97fc3f8b7..d8730b6c7 100644
--- a/integration-testing/webpack-test/src/handlebars-default-import-test.js
+++ b/integration-testing/webpack-test/src/handlebars-default-import-test.js
@@ -1,6 +1,5 @@
 import Handlebars from 'handlebars';
-import {assertEquals} from './lib/assert';
-
+import { assertEquals } from './lib/assert';
 
 const template = Handlebars.compile('Author: {{author}}');
-assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
+assertEquals(template({ author: 'Yehuda' }), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-loader-test.js b/integration-testing/webpack-test/src/handlebars-loader-test.js
index 4727c7a3a..c6fc8d8d9 100644
--- a/integration-testing/webpack-test/src/handlebars-loader-test.js
+++ b/integration-testing/webpack-test/src/handlebars-loader-test.js
@@ -1,8 +1,10 @@
-import {assertEquals} from './lib/assert';
+import { assertEquals } from './lib/assert';
 
 import testTemplate from './test-template.handlebars';
-assertEquals(testTemplate({author: 'Yehuda'}).trim(), 'Author: Yehuda');
-
+assertEquals(testTemplate({ author: 'Yehuda' }).trim(), 'Author: Yehuda');
 
 const testTemplateRequire = require('./test-template.handlebars');
-assertEquals(testTemplateRequire({author: 'Yehuda'}).trim(), 'Author: Yehuda');
+assertEquals(
+  testTemplateRequire({ author: 'Yehuda' }).trim(),
+  'Author: Yehuda'
+);
diff --git a/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js b/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js
index 13e2c97d7..9c49f0cbd 100644
--- a/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js
+++ b/integration-testing/webpack-test/src/handlebars-require-vs-import-test.js
@@ -1,10 +1,10 @@
 import * as HandlebarsViaImport from 'handlebars';
 const HandlebarsViaRequire = require('handlebars');
-import {assertEquals} from './lib/assert';
+import { assertEquals } from './lib/assert';
 
 HandlebarsViaImport.registerHelper('loud', function(text) {
-    return text.toUpperCase();
+  return text.toUpperCase();
 });
 
 const template = HandlebarsViaRequire.compile('Author: {{loud author}}');
-assertEquals(template({author: 'Yehuda'}), 'Author: YEHUDA');
+assertEquals(template({ author: 'Yehuda' }), 'Author: YEHUDA');
diff --git a/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js b/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
index 3731c5ac8..2e4a1ff4d 100644
--- a/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
+++ b/integration-testing/webpack-test/src/handlebars-wildcard-import-pre-4.2-test.js
@@ -1,6 +1,6 @@
 import * as Handlebars from 'handlebars/dist/handlebars';
 
-import {assertEquals} from './lib/assert';
+import { assertEquals } from './lib/assert';
 
 const template = Handlebars.compile('Author: {{author}}');
-assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
+assertEquals(template({ author: 'Yehuda' }), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js b/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
index 2ea0c1b49..bbf3bb81a 100644
--- a/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
+++ b/integration-testing/webpack-test/src/handlebars-wildcard-import-test.js
@@ -1,5 +1,5 @@
 import * as Handlebars from 'handlebars';
-import {assertEquals} from './lib/assert';
+import { assertEquals } from './lib/assert';
 
 const template = Handlebars.compile('Author: {{author}}');
-assertEquals(template({author: 'Yehuda'}), 'Author: Yehuda');
+assertEquals(template({ author: 'Yehuda' }), 'Author: Yehuda');
diff --git a/integration-testing/webpack-test/src/lib/assert.js b/integration-testing/webpack-test/src/lib/assert.js
index 9f33188db..00095006a 100644
--- a/integration-testing/webpack-test/src/lib/assert.js
+++ b/integration-testing/webpack-test/src/lib/assert.js
@@ -1,5 +1,5 @@
 export function assertEquals(actual, expected) {
-    if (actual !== expected) {
-        throw new Error(`Expected "${actual}" to equal "${expected}"`);
-    }
+  if (actual !== expected) {
+    throw new Error(`Expected "${actual}" to equal "${expected}"`);
+  }
 }
diff --git a/integration-testing/webpack-test/webpack.config.js b/integration-testing/webpack-test/webpack.config.js
index 957321223..207aed30c 100644
--- a/integration-testing/webpack-test/webpack.config.js
+++ b/integration-testing/webpack-test/webpack.config.js
@@ -3,20 +3,18 @@ const fs = require('fs');
 const testFiles = fs.readdirSync('src');
 const entryPoints = {};
 testFiles
-    .filter(file => file.match(/-test.js$/))
-    .forEach(file => {
-        entryPoints[file] = `./src/${file}`;
-    });
+  .filter(file => file.match(/-test.js$/))
+  .forEach(file => {
+    entryPoints[file] = `./src/${file}`;
+  });
 
 module.exports = {
-    entry: entryPoints,
-    output: {
-        filename: '[name]',
-        path: __dirname + '/dist'
-    },
-    module: {
-        rules: [
-            {test: /\.handlebars$/, loader: 'handlebars-loader'}
-        ]
-    }
+  entry: entryPoints,
+  output: {
+    filename: '[name]',
+    path: __dirname + '/dist'
+  },
+  module: {
+    rules: [{ test: /\.handlebars$/, loader: 'handlebars-loader' }]
+  }
 };
diff --git a/lib/handlebars.js b/lib/handlebars.js
index 69bcb410b..c4f8fc781 100644
--- a/lib/handlebars.js
+++ b/lib/handlebars.js
@@ -2,7 +2,11 @@ import runtime from './handlebars.runtime';
 
 // Compiler imports
 import AST from './handlebars/compiler/ast';
-import { parser as Parser, parse, parseWithoutProcessing } from './handlebars/compiler/base';
+import {
+  parser as Parser,
+  parse,
+  parseWithoutProcessing
+} from './handlebars/compiler/base';
 import { Compiler, compile, precompile } from './handlebars/compiler/compiler';
 import JavaScriptCompiler from './handlebars/compiler/javascript-compiler';
 import Visitor from './handlebars/compiler/visitor';
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index ad3541b53..c655e8f09 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -1,7 +1,7 @@
-import {createFrame, extend, toString} from './utils';
+import { createFrame, extend, toString } from './utils';
 import Exception from './exception';
-import {registerDefaultHelpers} from './helpers';
-import {registerDefaultDecorators} from './decorators';
+import { registerDefaultHelpers } from './helpers';
+import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 
 export const VERSION = '4.5.3';
@@ -38,7 +38,9 @@ HandlebarsEnvironment.prototype = {
 
   registerHelper: function(name, fn) {
     if (toString.call(name) === objectType) {
-      if (fn) { throw new Exception('Arg not supported with multiple helpers'); }
+      if (fn) {
+        throw new Exception('Arg not supported with multiple helpers');
+      }
       extend(this.helpers, name);
     } else {
       this.helpers[name] = fn;
@@ -53,7 +55,9 @@ HandlebarsEnvironment.prototype = {
       extend(this.partials, name);
     } else {
       if (typeof partial === 'undefined') {
-        throw new Exception(`Attempting to register a partial called "${name}" as undefined`);
+        throw new Exception(
+          `Attempting to register a partial called "${name}" as undefined`
+        );
       }
       this.partials[name] = partial;
     }
@@ -64,7 +68,9 @@ HandlebarsEnvironment.prototype = {
 
   registerDecorator: function(name, fn) {
     if (toString.call(name) === objectType) {
-      if (fn) { throw new Exception('Arg not supported with multiple decorators'); }
+      if (fn) {
+        throw new Exception('Arg not supported with multiple decorators');
+      }
       extend(this.decorators, name);
     } else {
       this.decorators[name] = fn;
@@ -77,4 +83,4 @@ HandlebarsEnvironment.prototype = {
 
 export let log = logger.log;
 
-export {createFrame, logger};
+export { createFrame, logger };
diff --git a/lib/handlebars/compiler/ast.js b/lib/handlebars/compiler/ast.js
index 1699569ba..d77629a52 100644
--- a/lib/handlebars/compiler/ast.js
+++ b/lib/handlebars/compiler/ast.js
@@ -5,24 +5,28 @@ let AST = {
     // * it is an eligible helper, and
     // * it has at least one parameter or hash segment
     helperExpression: function(node) {
-      return (node.type === 'SubExpression')
-          || ((node.type === 'MustacheStatement' || node.type === 'BlockStatement')
-            && !!((node.params && node.params.length) || node.hash));
+      return (
+        node.type === 'SubExpression' ||
+        ((node.type === 'MustacheStatement' ||
+          node.type === 'BlockStatement') &&
+          !!((node.params && node.params.length) || node.hash))
+      );
     },
 
     scopedId: function(path) {
-      return (/^\.|this\b/).test(path.original);
+      return /^\.|this\b/.test(path.original);
     },
 
     // an ID is simple if it only has one part, and that part is not
     // `..` or `this`.
     simpleId: function(path) {
-      return path.parts.length === 1 && !AST.helpers.scopedId(path) && !path.depth;
+      return (
+        path.parts.length === 1 && !AST.helpers.scopedId(path) && !path.depth
+      );
     }
   }
 };
 
-
 // Must be exported as an object rather than the root of the module as the jison lexer
 // must modify the object to operate properly.
 export default AST;
diff --git a/lib/handlebars/compiler/base.js b/lib/handlebars/compiler/base.js
index 19989ca5e..1dd5af1a4 100644
--- a/lib/handlebars/compiler/base.js
+++ b/lib/handlebars/compiler/base.js
@@ -10,7 +10,9 @@ extend(yy, Helpers);
 
 export function parseWithoutProcessing(input, options) {
   // Just return if an already-compiled AST was passed in.
-  if (input.type === 'Program') { return input; }
+  if (input.type === 'Program') {
+    return input;
+  }
 
   parser.yy = yy;
 
diff --git a/lib/handlebars/compiler/code-gen.js b/lib/handlebars/compiler/code-gen.js
index 30c5af740..4a174ba08 100644
--- a/lib/handlebars/compiler/code-gen.js
+++ b/lib/handlebars/compiler/code-gen.js
@@ -1,5 +1,5 @@
 /* global define */
-import {isArray} from '../utils';
+import { isArray } from '../utils';
 
 let SourceNode;
 
@@ -38,7 +38,7 @@ if (!SourceNode) {
       this.src = chunks + this.src;
     },
     toStringWithSourceMap: function() {
-      return {code: this.toString()};
+      return { code: this.toString() };
     },
     toString: function() {
       return this.src;
@@ -46,7 +46,6 @@ if (!SourceNode) {
   };
 }
 
-
 function castChunk(chunk, codeGen, loc) {
   if (isArray(chunk)) {
     let ret = [];
@@ -62,7 +61,6 @@ function castChunk(chunk, codeGen, loc) {
   return chunk;
 }
 
-
 function CodeGen(srcFile) {
   this.srcFile = srcFile;
   this.source = [];
@@ -94,17 +92,22 @@ CodeGen.prototype = {
   },
 
   empty: function() {
-    let loc = this.currentLocation || {start: {}};
+    let loc = this.currentLocation || { start: {} };
     return new SourceNode(loc.start.line, loc.start.column, this.srcFile);
   },
-  wrap: function(chunk, loc = this.currentLocation || {start: {}}) {
+  wrap: function(chunk, loc = this.currentLocation || { start: {} }) {
     if (chunk instanceof SourceNode) {
       return chunk;
     }
 
     chunk = castChunk(chunk, this, loc);
 
-    return new SourceNode(loc.start.line, loc.start.column, this.srcFile, chunk);
+    return new SourceNode(
+      loc.start.line,
+      loc.start.column,
+      this.srcFile,
+      chunk
+    );
   },
 
   functionCall: function(fn, type, params) {
@@ -113,13 +116,17 @@ CodeGen.prototype = {
   },
 
   quotedString: function(str) {
-    return '"' + (str + '')
-      .replace(/\\/g, '\\\\')
-      .replace(/"/g, '\\"')
-      .replace(/\n/g, '\\n')
-      .replace(/\r/g, '\\r')
-      .replace(/\u2028/g, '\\u2028') // Per Ecma-262 7.3 + 7.8.4
-      .replace(/\u2029/g, '\\u2029') + '"';
+    return (
+      '"' +
+      (str + '')
+        .replace(/\\/g, '\\\\')
+        .replace(/"/g, '\\"')
+        .replace(/\n/g, '\\n')
+        .replace(/\r/g, '\\r')
+        .replace(/\u2028/g, '\\u2028') // Per Ecma-262 7.3 + 7.8.4
+        .replace(/\u2029/g, '\\u2029') +
+      '"'
+    );
   },
 
   objectLiteral: function(obj) {
@@ -138,7 +145,6 @@ CodeGen.prototype = {
     return ret;
   },
 
-
   generateList: function(entries) {
     let ret = this.empty();
 
@@ -163,4 +169,3 @@ CodeGen.prototype = {
 };
 
 export default CodeGen;
-
diff --git a/lib/handlebars/compiler/compiler.js b/lib/handlebars/compiler/compiler.js
index b56ca5c26..33bd2b11a 100644
--- a/lib/handlebars/compiler/compiler.js
+++ b/lib/handlebars/compiler/compiler.js
@@ -1,7 +1,7 @@
 /* eslint-disable new-cap */
 
 import Exception from '../exception';
-import {isArray, indexOf, extend} from '../utils';
+import { isArray, indexOf, extend } from '../utils';
 import AST from './ast';
 
 const slice = [].slice;
@@ -24,8 +24,11 @@ Compiler.prototype = {
 
     for (let i = 0; i < len; i++) {
       let opcode = this.opcodes[i],
-          otherOpcode = other.opcodes[i];
-      if (opcode.opcode !== otherOpcode.opcode || !argEquals(opcode.args, otherOpcode.args)) {
+        otherOpcode = other.opcodes[i];
+      if (
+        opcode.opcode !== otherOpcode.opcode ||
+        !argEquals(opcode.args, otherOpcode.args)
+      ) {
         return false;
       }
     }
@@ -54,24 +57,28 @@ Compiler.prototype = {
 
     options.blockParams = options.blockParams || [];
 
-    options.knownHelpers = extend(Object.create(null), {
-      'helperMissing': true,
-      'blockHelperMissing': true,
-      'each': true,
-      'if': true,
-      'unless': true,
-      'with': true,
-      'log': true,
-      'lookup': true
-    }, options.knownHelpers);
+    options.knownHelpers = extend(
+      Object.create(null),
+      {
+        helperMissing: true,
+        blockHelperMissing: true,
+        each: true,
+        if: true,
+        unless: true,
+        with: true,
+        log: true,
+        lookup: true
+      },
+      options.knownHelpers
+    );
 
     return this.accept(program);
   },
 
   compileProgram: function(program) {
     let childCompiler = new this.compiler(), // eslint-disable-line new-cap
-        result = childCompiler.compile(program, this.options),
-        guid = this.guid++;
+      result = childCompiler.compile(program, this.options),
+      guid = this.guid++;
 
     this.usePartial = this.usePartial || result.usePartial;
 
@@ -97,7 +104,7 @@ Compiler.prototype = {
     this.options.blockParams.unshift(program.blockParams);
 
     let body = program.body,
-        bodyLength = body.length;
+      bodyLength = body.length;
     for (let i = 0; i < bodyLength; i++) {
       this.accept(body[i]);
     }
@@ -114,7 +121,7 @@ Compiler.prototype = {
     transformLiteralToPath(block);
 
     let program = block.program,
-        inverse = block.inverse;
+      inverse = block.inverse;
 
     program = program && this.compileProgram(program);
     inverse = inverse && this.compileProgram(inverse);
@@ -149,7 +156,7 @@ Compiler.prototype = {
   DecoratorBlock(decorator) {
     let program = decorator.program && this.compileProgram(decorator.program);
     let params = this.setupFullMustacheParams(decorator, program, undefined),
-        path = decorator.path;
+      path = decorator.path;
 
     this.useDecorators = true;
     this.opcode('registerDecorator', params.length, path.original);
@@ -165,17 +172,20 @@ Compiler.prototype = {
 
     let params = partial.params;
     if (params.length > 1) {
-      throw new Exception('Unsupported number of partial arguments: ' + params.length, partial);
+      throw new Exception(
+        'Unsupported number of partial arguments: ' + params.length,
+        partial
+      );
     } else if (!params.length) {
       if (this.options.explicitPartialContext) {
         this.opcode('pushLiteral', 'undefined');
       } else {
-        params.push({type: 'PathExpression', parts: [], depth: 0});
+        params.push({ type: 'PathExpression', parts: [], depth: 0 });
       }
     }
 
     let partialName = partial.name.original,
-        isDynamic = partial.name.type === 'SubExpression';
+      isDynamic = partial.name.type === 'SubExpression';
     if (isDynamic) {
       this.accept(partial.name);
     }
@@ -208,7 +218,6 @@ Compiler.prototype = {
     this.DecoratorBlock(decorator);
   },
 
-
   ContentStatement: function(content) {
     if (content.value) {
       this.opcode('appendContent', content.value);
@@ -231,8 +240,8 @@ Compiler.prototype = {
   },
   ambiguousSexpr: function(sexpr, program, inverse) {
     let path = sexpr.path,
-        name = path.parts[0],
-        isBlock = program != null || inverse != null;
+      name = path.parts[0],
+      isBlock = program != null || inverse != null;
 
     this.opcode('getContext', path.depth);
 
@@ -254,19 +263,27 @@ Compiler.prototype = {
 
   helperSexpr: function(sexpr, program, inverse) {
     let params = this.setupFullMustacheParams(sexpr, program, inverse),
-        path = sexpr.path,
-        name = path.parts[0];
+      path = sexpr.path,
+      name = path.parts[0];
 
     if (this.options.knownHelpers[name]) {
       this.opcode('invokeKnownHelper', params.length, name);
     } else if (this.options.knownHelpersOnly) {
-      throw new Exception('You specified knownHelpersOnly, but used the unknown helper ' + name, sexpr);
+      throw new Exception(
+        'You specified knownHelpersOnly, but used the unknown helper ' + name,
+        sexpr
+      );
     } else {
       path.strict = true;
       path.falsy = true;
 
       this.accept(path);
-      this.opcode('invokeHelper', params.length, path.original, AST.helpers.simpleId(path));
+      this.opcode(
+        'invokeHelper',
+        params.length,
+        path.original,
+        AST.helpers.simpleId(path)
+      );
     }
   },
 
@@ -275,8 +292,8 @@ Compiler.prototype = {
     this.opcode('getContext', path.depth);
 
     let name = path.parts[0],
-        scoped = AST.helpers.scopedId(path),
-        blockParamId = !path.depth && !scoped && this.blockParamIndex(name);
+      scoped = AST.helpers.scopedId(path),
+      blockParamId = !path.depth && !scoped && this.blockParamIndex(name);
 
     if (blockParamId) {
       this.opcode('lookupBlockParam', blockParamId, path.parts);
@@ -287,7 +304,13 @@ Compiler.prototype = {
       this.options.data = true;
       this.opcode('lookupData', path.depth, path.parts, path.strict);
     } else {
-      this.opcode('lookupOnContext', path.parts, path.falsy, path.strict, scoped);
+      this.opcode(
+        'lookupOnContext',
+        path.parts,
+        path.falsy,
+        path.strict,
+        scoped
+      );
     }
   },
 
@@ -313,8 +336,8 @@ Compiler.prototype = {
 
   Hash: function(hash) {
     let pairs = hash.pairs,
-        i = 0,
-        l = pairs.length;
+      i = 0,
+      l = pairs.length;
 
     this.opcode('pushHash');
 
@@ -329,7 +352,11 @@ Compiler.prototype = {
 
   // HELPERS
   opcode: function(name) {
-    this.opcodes.push({ opcode: name, args: slice.call(arguments, 1), loc: this.sourceNode[0].loc });
+    this.opcodes.push({
+      opcode: name,
+      args: slice.call(arguments, 1),
+      loc: this.sourceNode[0].loc
+    });
   },
 
   addDepth: function(depth) {
@@ -358,7 +385,7 @@ Compiler.prototype = {
     // An eligible helper is one that does not have a complex path, i.e. `this.foo`, `../foo` etc.
     if (isEligible && !isHelper) {
       let name = sexpr.path.parts[0],
-          options = this.options;
+        options = this.options;
       if (options.knownHelpers[name]) {
         isHelper = true;
       } else if (options.knownHelpersOnly) {
@@ -386,9 +413,7 @@ Compiler.prototype = {
 
     if (this.stringParams) {
       if (value.replace) {
-        value = value
-            .replace(/^(\.?\.\/)*/g, '')
-            .replace(/\//g, '.');
+        value = value.replace(/^(\.?\.\/)*/g, '').replace(/\//g, '.');
       }
 
       if (val.depth) {
@@ -406,7 +431,7 @@ Compiler.prototype = {
       if (this.trackIds) {
         let blockParamIndex;
         if (val.parts && !AST.helpers.scopedId(val) && !val.depth) {
-           blockParamIndex = this.blockParamIndex(val.parts[0]);
+          blockParamIndex = this.blockParamIndex(val.parts[0]);
         }
         if (blockParamIndex) {
           let blockParamChild = val.parts.slice(1).join('.');
@@ -415,9 +440,9 @@ Compiler.prototype = {
           value = val.original || value;
           if (value.replace) {
             value = value
-                .replace(/^this(?:\.|$)/, '')
-                .replace(/^\.\//, '')
-                .replace(/^\.$/, '');
+              .replace(/^this(?:\.|$)/, '')
+              .replace(/^\.\//, '')
+              .replace(/^\.$/, '');
           }
 
           this.opcode('pushId', val.type, value);
@@ -444,9 +469,13 @@ Compiler.prototype = {
   },
 
   blockParamIndex: function(name) {
-    for (let depth = 0, len = this.options.blockParams.length; depth < len; depth++) {
+    for (
+      let depth = 0, len = this.options.blockParams.length;
+      depth < len;
+      depth++
+    ) {
       let blockParams = this.options.blockParams[depth],
-          param = blockParams && indexOf(blockParams, name);
+        param = blockParams && indexOf(blockParams, name);
       if (blockParams && param >= 0) {
         return [depth, param];
       }
@@ -455,8 +484,14 @@ Compiler.prototype = {
 };
 
 export function precompile(input, options, env) {
-  if (input == null || (typeof input !== 'string' && input.type !== 'Program')) {
-    throw new Exception('You must pass a string or Handlebars AST to Handlebars.precompile. You passed ' + input);
+  if (
+    input == null ||
+    (typeof input !== 'string' && input.type !== 'Program')
+  ) {
+    throw new Exception(
+      'You must pass a string or Handlebars AST to Handlebars.precompile. You passed ' +
+        input
+    );
   }
 
   options = options || {};
@@ -468,13 +503,19 @@ export function precompile(input, options, env) {
   }
 
   let ast = env.parse(input, options),
-      environment = new env.Compiler().compile(ast, options);
+    environment = new env.Compiler().compile(ast, options);
   return new env.JavaScriptCompiler().compile(environment, options);
 }
 
 export function compile(input, options = {}, env) {
-  if (input == null || (typeof input !== 'string' && input.type !== 'Program')) {
-    throw new Exception('You must pass a string or Handlebars AST to Handlebars.compile. You passed ' + input);
+  if (
+    input == null ||
+    (typeof input !== 'string' && input.type !== 'Program')
+  ) {
+    throw new Exception(
+      'You must pass a string or Handlebars AST to Handlebars.compile. You passed ' +
+        input
+    );
   }
 
   options = extend({}, options);
@@ -489,8 +530,13 @@ export function compile(input, options = {}, env) {
 
   function compileInput() {
     let ast = env.parse(input, options),
-        environment = new env.Compiler().compile(ast, options),
-        templateSpec = new env.JavaScriptCompiler().compile(environment, options, undefined, true);
+      environment = new env.Compiler().compile(ast, options),
+      templateSpec = new env.JavaScriptCompiler().compile(
+        environment,
+        options,
+        undefined,
+        true
+      );
     return env.template(templateSpec);
   }
 
diff --git a/lib/handlebars/compiler/helpers.js b/lib/handlebars/compiler/helpers.js
index f26b4e15c..27033a1d5 100644
--- a/lib/handlebars/compiler/helpers.js
+++ b/lib/handlebars/compiler/helpers.js
@@ -4,9 +4,12 @@ function validateClose(open, close) {
   close = close.path ? close.path.original : close;
 
   if (open.path.original !== close) {
-    let errorNode = {loc: open.path.loc};
+    let errorNode = { loc: open.path.loc };
 
-    throw new Exception(open.path.original + " doesn't match " + close, errorNode);
+    throw new Exception(
+      open.path.original + " doesn't match " + close,
+      errorNode
+    );
   }
 }
 
@@ -38,27 +41,26 @@ export function stripFlags(open, close) {
 }
 
 export function stripComment(comment) {
-  return comment.replace(/^\{\{~?!-?-?/, '')
-                .replace(/-?-?~?\}\}$/, '');
+  return comment.replace(/^\{\{~?!-?-?/, '').replace(/-?-?~?\}\}$/, '');
 }
 
 export function preparePath(data, parts, loc) {
   loc = this.locInfo(loc);
 
   let original = data ? '@' : '',
-      dig = [],
-      depth = 0;
+    dig = [],
+    depth = 0;
 
   for (let i = 0, l = parts.length; i < l; i++) {
     let part = parts[i].part,
-        // If we have [] syntax then we do not treat path references as operators,
-        // i.e. foo.[this] resolves to approximately context.foo['this']
-        isLiteral = parts[i].original !== part;
+      // If we have [] syntax then we do not treat path references as operators,
+      // i.e. foo.[this] resolves to approximately context.foo['this']
+      isLiteral = parts[i].original !== part;
     original += (parts[i].separator || '') + part;
 
     if (!isLiteral && (part === '..' || part === '.' || part === 'this')) {
       if (dig.length > 0) {
-        throw new Exception('Invalid path: ' + original, {loc});
+        throw new Exception('Invalid path: ' + original, { loc });
       } else if (part === '..') {
         depth++;
       }
@@ -80,9 +82,9 @@ export function preparePath(data, parts, loc) {
 export function prepareMustache(path, params, hash, open, strip, locInfo) {
   // Must use charAt to support IE pre-10
   let escapeFlag = open.charAt(3) || open.charAt(2),
-      escaped = escapeFlag !== '{' && escapeFlag !== '&';
+    escaped = escapeFlag !== '{' && escapeFlag !== '&';
 
-  let decorator = (/\*/.test(open));
+  let decorator = /\*/.test(open);
   return {
     type: decorator ? 'Decorator' : 'MustacheStatement',
     path,
@@ -118,21 +120,30 @@ export function prepareRawBlock(openRawBlock, contents, close, locInfo) {
   };
 }
 
-export function prepareBlock(openBlock, program, inverseAndProgram, close, inverted, locInfo) {
+export function prepareBlock(
+  openBlock,
+  program,
+  inverseAndProgram,
+  close,
+  inverted,
+  locInfo
+) {
   if (close && close.path) {
     validateClose(openBlock, close);
   }
 
-  let decorator = (/\*/.test(openBlock.open));
+  let decorator = /\*/.test(openBlock.open);
 
   program.blockParams = openBlock.blockParams;
 
-  let inverse,
-      inverseStrip;
+  let inverse, inverseStrip;
 
   if (inverseAndProgram) {
     if (decorator) {
-      throw new Exception('Unexpected inverse block on decorator', inverseAndProgram);
+      throw new Exception(
+        'Unexpected inverse block on decorator',
+        inverseAndProgram
+      );
     }
 
     if (inverseAndProgram.chain) {
@@ -166,7 +177,7 @@ export function prepareBlock(openBlock, program, inverseAndProgram, close, inver
 export function prepareProgram(statements, loc) {
   if (!loc && statements.length) {
     const firstLoc = statements[0].loc,
-          lastLoc = statements[statements.length - 1].loc;
+      lastLoc = statements[statements.length - 1].loc;
 
     /* istanbul ignore else */
     if (firstLoc && lastLoc) {
@@ -192,7 +203,6 @@ export function prepareProgram(statements, loc) {
   };
 }
 
-
 export function preparePartialBlock(open, program, close, locInfo) {
   validateClose(open, close);
 
@@ -207,4 +217,3 @@ export function preparePartialBlock(open, program, close, locInfo) {
     loc: this.locInfo(locInfo)
   };
 }
-
diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 9a4c02daf..bcf9bb21c 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -1,8 +1,8 @@
 import { COMPILER_REVISION, REVISION_CHANGES } from '../base';
 import Exception from '../exception';
-import {isArray} from '../utils';
+import { isArray } from '../utils';
 import CodeGen from './code-gen';
-import {dangerousPropertyRegex} from '../helpers/lookup';
+import { dangerousPropertyRegex } from '../helpers/lookup';
 
 function Literal(value) {
   this.value = value;
@@ -13,9 +13,16 @@ function JavaScriptCompiler() {}
 JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
-  nameLookup: function(parent, name/* , type*/) {
+  nameLookup: function(parent, name /* , type*/) {
     if (dangerousPropertyRegex.test(name)) {
-      const isEnumerable = [ this.aliasable('container.propertyIsEnumerable'), '.call(', parent, ',', JSON.stringify(name), ')'];
+      const isEnumerable = [
+        this.aliasable('container.propertyIsEnumerable'),
+        '.call(',
+        parent,
+        ',',
+        JSON.stringify(name),
+        ')'
+      ];
       return ['(', isEnumerable, '?', _actualLookup(), ' : undefined)'];
     }
     return _actualLookup();
@@ -34,7 +41,7 @@ JavaScriptCompiler.prototype = {
 
   compilerInfo: function() {
     const revision = COMPILER_REVISION,
-          versions = REVISION_CHANGES[revision];
+      versions = REVISION_CHANGES[revision];
     return [revision, versions];
   },
 
@@ -91,14 +98,18 @@ JavaScriptCompiler.prototype = {
 
     this.compileChildren(environment, options);
 
-    this.useDepths = this.useDepths || environment.useDepths || environment.useDecorators || this.options.compat;
+    this.useDepths =
+      this.useDepths ||
+      environment.useDepths ||
+      environment.useDecorators ||
+      this.options.compat;
     this.useBlockParams = this.useBlockParams || environment.useBlockParams;
 
     let opcodes = environment.opcodes,
-        opcode,
-        firstLoc,
-        i,
-        l;
+      opcode,
+      firstLoc,
+      i,
+      l;
 
     for (i = 0, l = opcodes.length; i < l; i++) {
       opcode = opcodes[i];
@@ -124,9 +135,20 @@ JavaScriptCompiler.prototype = {
       this.decorators.push('return fn;');
 
       if (asObject) {
-        this.decorators = Function.apply(this, ['fn', 'props', 'container', 'depth0', 'data', 'blockParams', 'depths', this.decorators.merge()]);
+        this.decorators = Function.apply(this, [
+          'fn',
+          'props',
+          'container',
+          'depth0',
+          'data',
+          'blockParams',
+          'depths',
+          this.decorators.merge()
+        ]);
       } else {
-        this.decorators.prepend('function(fn, props, container, depth0, data, blockParams, depths) {\n');
+        this.decorators.prepend(
+          'function(fn, props, container, depth0, data, blockParams, depths) {\n'
+        );
         this.decorators.push('}\n');
         this.decorators = this.decorators.merge();
       }
@@ -146,7 +168,7 @@ JavaScriptCompiler.prototype = {
         ret.useDecorators = true;
       }
 
-      let {programs, decorators} = this.context;
+      let { programs, decorators } = this.context;
       for (i = 0, l = programs.length; i < l; i++) {
         if (programs[i]) {
           ret[i] = programs[i];
@@ -176,11 +198,11 @@ JavaScriptCompiler.prototype = {
       if (!asObject) {
         ret.compiler = JSON.stringify(ret.compiler);
 
-        this.source.currentLocation = {start: {line: 1, column: 0}};
+        this.source.currentLocation = { start: { line: 1, column: 0 } };
         ret = this.objectLiteral(ret);
 
         if (options.srcName) {
-          ret = ret.toStringWithSourceMap({file: options.destName});
+          ret = ret.toStringWithSourceMap({ file: options.destName });
           ret.map = ret.map && ret.map.toString();
         } else {
           ret = ret.toString();
@@ -221,7 +243,7 @@ JavaScriptCompiler.prototype = {
     Object.keys(this.aliases).forEach(alias => {
       let node = this.aliases[alias];
       if (node.children && node.referenceCount > 1) {
-        varDeclarations += ', alias' + (++aliasCount) + '=' + alias;
+        varDeclarations += ', alias' + ++aliasCount + '=' + alias;
         node.children[0] = 'alias' + aliasCount;
       }
     });
@@ -243,18 +265,23 @@ JavaScriptCompiler.prototype = {
 
       return Function.apply(this, params);
     } else {
-      return this.source.wrap(['function(', params.join(','), ') {\n  ', source, '}']);
+      return this.source.wrap([
+        'function(',
+        params.join(','),
+        ') {\n  ',
+        source,
+        '}'
+      ]);
     }
   },
   mergeSource: function(varDeclarations) {
     let isSimple = this.environment.isSimple,
-        appendOnly = !this.forceBuffer,
-        appendFirst,
-
-        sourceSeen,
-        bufferStart,
-        bufferEnd;
-    this.source.each((line) => {
+      appendOnly = !this.forceBuffer,
+      appendFirst,
+      sourceSeen,
+      bufferStart,
+      bufferEnd;
+    this.source.each(line => {
       if (line.appendToBuffer) {
         if (bufferStart) {
           line.prepend('  + ');
@@ -280,7 +307,6 @@ JavaScriptCompiler.prototype = {
       }
     });
 
-
     if (appendOnly) {
       if (bufferStart) {
         bufferStart.prepend('return ');
@@ -289,7 +315,8 @@ JavaScriptCompiler.prototype = {
         this.source.push('return "";');
       }
     } else {
-      varDeclarations += ', buffer = ' + (appendFirst ? '' : this.initializeBuffer());
+      varDeclarations +=
+        ', buffer = ' + (appendFirst ? '' : this.initializeBuffer());
 
       if (bufferStart) {
         bufferStart.prepend('return buffer + ');
@@ -300,7 +327,9 @@ JavaScriptCompiler.prototype = {
     }
 
     if (varDeclarations) {
-      this.source.prepend('var ' + varDeclarations.substring(2) + (appendFirst ? '' : ';\n'));
+      this.source.prepend(
+        'var ' + varDeclarations.substring(2) + (appendFirst ? '' : ';\n')
+      );
     }
 
     return this.source.merge();
@@ -316,8 +345,10 @@ JavaScriptCompiler.prototype = {
   // replace it on the stack with the result of properly
   // invoking blockHelperMissing.
   blockValue: function(name) {
-    let blockHelperMissing = this.aliasable('container.hooks.blockHelperMissing'),
-        params = [this.contextName(0)];
+    let blockHelperMissing = this.aliasable(
+        'container.hooks.blockHelperMissing'
+      ),
+      params = [this.contextName(0)];
     this.setupHelperArgs(name, 0, params);
 
     let blockName = this.popStack();
@@ -334,8 +365,10 @@ JavaScriptCompiler.prototype = {
   // On stack, after, if lastHelper: value
   ambiguousBlockValue: function() {
     // We're being a bit cheeky and reusing the options value from the prior exec
-    let blockHelperMissing = this.aliasable('container.hooks.blockHelperMissing'),
-        params = [this.contextName(0)];
+    let blockHelperMissing = this.aliasable(
+        'container.hooks.blockHelperMissing'
+      ),
+      params = [this.contextName(0)];
     this.setupHelperArgs('', 0, params, true);
 
     this.flushInline();
@@ -344,9 +377,14 @@ JavaScriptCompiler.prototype = {
     params.splice(1, 0, current);
 
     this.pushSource([
-      'if (!', this.lastHelper, ') { ',
-      current, ' = ', this.source.functionCall(blockHelperMissing, 'call', params),
-      '}']);
+      'if (!',
+      this.lastHelper,
+      ') { ',
+      current,
+      ' = ',
+      this.source.functionCall(blockHelperMissing, 'call', params),
+      '}'
+    ]);
   },
 
   // [appendContent]
@@ -376,14 +414,24 @@ JavaScriptCompiler.prototype = {
   // Otherwise, the empty string is appended
   append: function() {
     if (this.isInline()) {
-      this.replaceStack((current) => [' != null ? ', current, ' : ""']);
+      this.replaceStack(current => [' != null ? ', current, ' : ""']);
 
       this.pushSource(this.appendToBuffer(this.popStack()));
     } else {
       let local = this.popStack();
-      this.pushSource(['if (', local, ' != null) { ', this.appendToBuffer(local, undefined, true), ' }']);
+      this.pushSource([
+        'if (',
+        local,
+        ' != null) { ',
+        this.appendToBuffer(local, undefined, true),
+        ' }'
+      ]);
       if (this.environment.isSimple) {
-        this.pushSource(['else { ', this.appendToBuffer("''", undefined, true), ' }']);
+        this.pushSource([
+          'else { ',
+          this.appendToBuffer("''", undefined, true),
+          ' }'
+        ]);
       }
     }
   },
@@ -395,8 +443,14 @@ JavaScriptCompiler.prototype = {
   //
   // Escape `value` and append it to the buffer
   appendEscaped: function() {
-    this.pushSource(this.appendToBuffer(
-        [this.aliasable('container.escapeExpression'), '(', this.popStack(), ')']));
+    this.pushSource(
+      this.appendToBuffer([
+        this.aliasable('container.escapeExpression'),
+        '(',
+        this.popStack(),
+        ')'
+      ])
+    );
   },
 
   // [getContext]
@@ -480,7 +534,7 @@ JavaScriptCompiler.prototype = {
     let len = parts.length;
     for (; i < len; i++) {
       /* eslint-disable no-loop-func */
-      this.replaceStack((current) => {
+      this.replaceStack(current => {
         let lookup = this.nameLookup(current, parts[i], type);
         // We want to ensure that zero and false are handled properly if the context (falsy flag)
         // needs to have the special handling for these values.
@@ -503,7 +557,14 @@ JavaScriptCompiler.prototype = {
   // If the `value` is a lambda, replace it on the stack by
   // the return value of the lambda
   resolvePossibleLambda: function() {
-    this.push([this.aliasable('container.lambda'), '(', this.popStack(), ', ', this.contextName(0), ')']);
+    this.push([
+      this.aliasable('container.lambda'),
+      '(',
+      this.popStack(),
+      ', ',
+      this.contextName(0),
+      ')'
+    ]);
   },
 
   // [pushStringParam]
@@ -543,7 +604,7 @@ JavaScriptCompiler.prototype = {
     if (this.hash) {
       this.hashes.push(this.hash);
     }
-    this.hash = {values: {}, types: [], contexts: [], ids: []};
+    this.hash = { values: {}, types: [], contexts: [], ids: [] };
   },
   popHash: function() {
     let hash = this.hash;
@@ -607,11 +668,16 @@ JavaScriptCompiler.prototype = {
   // and inserts the decorator into the decorators list.
   registerDecorator(paramSize, name) {
     let foundDecorator = this.nameLookup('decorators', name, 'decorator'),
-        options = this.setupHelperArgs(name, paramSize);
+      options = this.setupHelperArgs(name, paramSize);
 
     this.decorators.push([
       'fn = ',
-      this.decorators.functionCall(foundDecorator, '', ['fn', 'props', 'container', options]),
+      this.decorators.functionCall(foundDecorator, '', [
+        'fn',
+        'props',
+        'container',
+        options
+      ]),
       ' || fn;'
     ]);
   },
@@ -627,21 +693,32 @@ JavaScriptCompiler.prototype = {
   // If the helper is not found, `helperMissing` is called.
   invokeHelper: function(paramSize, name, isSimple) {
     let nonHelper = this.popStack(),
-        helper = this.setupHelper(paramSize, name);
+      helper = this.setupHelper(paramSize, name);
 
     let possibleFunctionCalls = [];
 
-    if (isSimple) { // direct call to helper
+    if (isSimple) {
+      // direct call to helper
       possibleFunctionCalls.push(helper.name);
     }
     // call a function from the input object
     possibleFunctionCalls.push(nonHelper);
     if (!this.options.strict) {
-      possibleFunctionCalls.push(this.aliasable('container.hooks.helperMissing'));
+      possibleFunctionCalls.push(
+        this.aliasable('container.hooks.helperMissing')
+      );
     }
 
-    let functionLookupCode = ['(', this.itemsSeparatedBy(possibleFunctionCalls, '||'), ')'];
-    let functionCall = this.source.functionCall(functionLookupCode, 'call', helper.callParams);
+    let functionLookupCode = [
+      '(',
+      this.itemsSeparatedBy(possibleFunctionCalls, '||'),
+      ')'
+    ];
+    let functionCall = this.source.functionCall(
+      functionLookupCode,
+      'call',
+      helper.callParams
+    );
     this.push(functionCall);
   },
 
@@ -685,22 +762,31 @@ JavaScriptCompiler.prototype = {
     this.emptyHash();
     let helper = this.setupHelper(0, name, helperCall);
 
-    let helperName = this.lastHelper = this.nameLookup('helpers', name, 'helper');
+    let helperName = (this.lastHelper = this.nameLookup(
+      'helpers',
+      name,
+      'helper'
+    ));
 
     let lookup = ['(', '(helper = ', helperName, ' || ', nonHelper, ')'];
     if (!this.options.strict) {
       lookup[0] = '(helper = ';
       lookup.push(
-          ' != null ? helper : ',
-          this.aliasable('container.hooks.helperMissing')
+        ' != null ? helper : ',
+        this.aliasable('container.hooks.helperMissing')
       );
     }
 
     this.push([
-      '(', lookup,
-      (helper.paramsInit ? ['),(', helper.paramsInit] : []), '),',
-      '(typeof helper === ', this.aliasable('"function"'), ' ? ',
-      this.source.functionCall('helper', 'call', helper.callParams), ' : helper))'
+      '(',
+      lookup,
+      helper.paramsInit ? ['),(', helper.paramsInit] : [],
+      '),',
+      '(typeof helper === ',
+      this.aliasable('"function"'),
+      ' ? ',
+      this.source.functionCall('helper', 'call', helper.callParams),
+      ' : helper))'
     ]);
   },
 
@@ -713,7 +799,7 @@ JavaScriptCompiler.prototype = {
   // and pushes the result of the invocation back.
   invokePartial: function(isDynamic, name, indent) {
     let params = [],
-        options = this.setupParams(name, 1, params);
+      options = this.setupParams(name, 1, params);
 
     if (isDynamic) {
       name = this.popStack();
@@ -750,9 +836,9 @@ JavaScriptCompiler.prototype = {
   // Pops a value off the stack and assigns it to the current hash
   assignToHash: function(key) {
     let value = this.popStack(),
-        context,
-        type,
-        id;
+      context,
+      type,
+      id;
 
     if (this.trackIds) {
       id = this.popStack();
@@ -778,8 +864,13 @@ JavaScriptCompiler.prototype = {
   pushId: function(type, name, child) {
     if (type === 'BlockParam') {
       this.pushStackLiteral(
-          'blockParams[' + name[0] + '].path[' + name[1] + ']'
-          + (child ? ' + ' + JSON.stringify('.' + child) : ''));
+        'blockParams[' +
+          name[0] +
+          '].path[' +
+          name[1] +
+          ']' +
+          (child ? ' + ' + JSON.stringify('.' + child) : '')
+      );
     } else if (type === 'PathExpression') {
       this.pushString(name);
     } else if (type === 'SubExpression') {
@@ -794,7 +885,9 @@ JavaScriptCompiler.prototype = {
   compiler: JavaScriptCompiler,
 
   compileChildren: function(environment, options) {
-    let children = environment.children, child, compiler;
+    let children = environment.children,
+      child,
+      compiler;
 
     for (let i = 0, l = children.length; i < l; i++) {
       child = children[i];
@@ -807,7 +900,12 @@ JavaScriptCompiler.prototype = {
         let index = this.context.programs.length;
         child.index = index;
         child.name = 'program' + index;
-        this.context.programs[index] = compiler.compile(child, options, this.context, !this.precompile);
+        this.context.programs[index] = compiler.compile(
+          child,
+          options,
+          this.context,
+          !this.precompile
+        );
         this.context.decorators[index] = compiler.decorators;
         this.context.environments[index] = child;
 
@@ -835,7 +933,7 @@ JavaScriptCompiler.prototype = {
 
   programExpression: function(guid) {
     let child = this.environment.children[guid],
-        programParams = [child.index, 'data', child.blockParams];
+      programParams = [child.index, 'data', child.blockParams];
 
     if (this.useBlockParams || this.useDepths) {
       programParams.push('blockParams');
@@ -870,7 +968,11 @@ JavaScriptCompiler.prototype = {
   pushSource: function(source) {
     if (this.pendingContent) {
       this.source.push(
-          this.appendToBuffer(this.source.quotedString(this.pendingContent), this.pendingLocation));
+        this.appendToBuffer(
+          this.source.quotedString(this.pendingContent),
+          this.pendingLocation
+        )
+      );
       this.pendingContent = undefined;
     }
 
@@ -881,9 +983,9 @@ JavaScriptCompiler.prototype = {
 
   replaceStack: function(callback) {
     let prefix = ['('],
-        stack,
-        createdStack,
-        usedLiteral;
+      stack,
+      createdStack,
+      usedLiteral;
 
     /* istanbul ignore next */
     if (!this.isInline()) {
@@ -920,7 +1022,9 @@ JavaScriptCompiler.prototype = {
 
   incrStack: function() {
     this.stackSlot++;
-    if (this.stackSlot > this.stackVars.length) { this.stackVars.push('stack' + this.stackSlot); }
+    if (this.stackSlot > this.stackVars.length) {
+      this.stackVars.push('stack' + this.stackSlot);
+    }
     return this.topStackName();
   },
   topStackName: function() {
@@ -947,9 +1051,9 @@ JavaScriptCompiler.prototype = {
 
   popStack: function(wrapped) {
     let inline = this.isInline(),
-        item = (inline ? this.inlineStack : this.compileStack).pop();
+      item = (inline ? this.inlineStack : this.compileStack).pop();
 
-    if (!wrapped && (item instanceof Literal)) {
+    if (!wrapped && item instanceof Literal) {
       return item.value;
     } else {
       if (!inline) {
@@ -964,8 +1068,8 @@ JavaScriptCompiler.prototype = {
   },
 
   topStack: function() {
-    let stack = (this.isInline() ? this.inlineStack : this.compileStack),
-        item = stack[stack.length - 1];
+    let stack = this.isInline() ? this.inlineStack : this.compileStack,
+      item = stack[stack.length - 1];
 
     /* istanbul ignore if */
     if (item instanceof Literal) {
@@ -1007,9 +1111,13 @@ JavaScriptCompiler.prototype = {
 
   setupHelper: function(paramSize, name, blockHelper) {
     let params = [],
-        paramsInit = this.setupHelperArgs(name, paramSize, params, blockHelper);
+      paramsInit = this.setupHelperArgs(name, paramSize, params, blockHelper);
     let foundHelper = this.nameLookup('helpers', name, 'helper'),
-        callContext = this.aliasable(`${this.contextName(0)} != null ? ${this.contextName(0)} : (container.nullContext || {})`);
+      callContext = this.aliasable(
+        `${this.contextName(0)} != null ? ${this.contextName(
+          0
+        )} : (container.nullContext || {})`
+      );
 
     return {
       params: params,
@@ -1021,11 +1129,11 @@ JavaScriptCompiler.prototype = {
 
   setupParams: function(helper, paramSize, params) {
     let options = {},
-        contexts = [],
-        types = [],
-        ids = [],
-        objectArgs = !params,
-        param;
+      contexts = [],
+      types = [],
+      ids = [],
+      objectArgs = !params,
+      param;
 
     if (objectArgs) {
       params = [];
@@ -1043,7 +1151,7 @@ JavaScriptCompiler.prototype = {
     }
 
     let inverse = this.popStack(),
-        program = this.popStack();
+      program = this.popStack();
 
     // Avoid setting fn and inverse if neither are set. This allows
     // helpers to do a check for `if (options.fn)`
@@ -1106,7 +1214,6 @@ JavaScriptCompiler.prototype = {
   }
 };
 
-
 (function() {
   const reservedWords = (
     'break else new var' +
@@ -1127,21 +1234,24 @@ JavaScriptCompiler.prototype = {
     ' null true false'
   ).split(' ');
 
-  const compilerWords = JavaScriptCompiler.RESERVED_WORDS = {};
+  const compilerWords = (JavaScriptCompiler.RESERVED_WORDS = {});
 
   for (let i = 0, l = reservedWords.length; i < l; i++) {
     compilerWords[reservedWords[i]] = true;
   }
-}());
+})();
 
 JavaScriptCompiler.isValidJavaScriptVariableName = function(name) {
-  return !JavaScriptCompiler.RESERVED_WORDS[name] && (/^[a-zA-Z_$][0-9a-zA-Z_$]*$/).test(name);
+  return (
+    !JavaScriptCompiler.RESERVED_WORDS[name] &&
+    /^[a-zA-Z_$][0-9a-zA-Z_$]*$/.test(name)
+  );
 };
 
 function strictLookup(requireTerminal, compiler, parts, type) {
   let stack = compiler.popStack(),
-      i = 0,
-      len = parts.length;
+    i = 0,
+    len = parts.length;
   if (requireTerminal) {
     len--;
   }
@@ -1151,7 +1261,16 @@ function strictLookup(requireTerminal, compiler, parts, type) {
   }
 
   if (requireTerminal) {
-    return [compiler.aliasable('container.strict'), '(', stack, ', ', compiler.quotedString(parts[i]), ', ', JSON.stringify(compiler.source.currentLocation), ' )'];
+    return [
+      compiler.aliasable('container.strict'),
+      '(',
+      stack,
+      ', ',
+      compiler.quotedString(parts[i]),
+      ', ',
+      JSON.stringify(compiler.source.currentLocation),
+      ' )'
+    ];
   } else {
     return stack;
   }
diff --git a/lib/handlebars/compiler/printer.js b/lib/handlebars/compiler/printer.js
index 6ad43baec..e087806cd 100644
--- a/lib/handlebars/compiler/printer.js
+++ b/lib/handlebars/compiler/printer.js
@@ -24,13 +24,14 @@ PrintVisitor.prototype.pad = function(string) {
 
 PrintVisitor.prototype.Program = function(program) {
   let out = '',
-      body = program.body,
-      i, l;
+    body = program.body,
+    i,
+    l;
 
   if (program.blockParams) {
     let blockParams = 'BLOCK PARAMS: [';
     for (i = 0, l = program.blockParams.length; i < l; i++) {
-       blockParams += ' ' + program.blockParams[i];
+      blockParams += ' ' + program.blockParams[i];
     }
     blockParams += ' ]';
     out += this.pad(blockParams);
@@ -52,11 +53,14 @@ PrintVisitor.prototype.Decorator = function(mustache) {
   return this.pad('{{ DIRECTIVE ' + this.SubExpression(mustache) + ' }}');
 };
 
-PrintVisitor.prototype.BlockStatement =
-PrintVisitor.prototype.DecoratorBlock = function(block) {
+PrintVisitor.prototype.BlockStatement = PrintVisitor.prototype.DecoratorBlock = function(
+  block
+) {
   let out = '';
 
-  out += this.pad((block.type === 'DecoratorBlock' ? 'DIRECTIVE ' : '') + 'BLOCK:');
+  out += this.pad(
+    (block.type === 'DecoratorBlock' ? 'DIRECTIVE ' : '') + 'BLOCK:'
+  );
   this.padding++;
   out += this.pad(this.SubExpression(block));
   if (block.program) {
@@ -66,12 +70,16 @@ PrintVisitor.prototype.DecoratorBlock = function(block) {
     this.padding--;
   }
   if (block.inverse) {
-    if (block.program) { this.padding++; }
+    if (block.program) {
+      this.padding++;
+    }
     out += this.pad('{{^}}');
     this.padding++;
     out += this.accept(block.inverse);
     this.padding--;
-    if (block.program) { this.padding--; }
+    if (block.program) {
+      this.padding--;
+    }
   }
   this.padding--;
 
@@ -115,8 +123,8 @@ PrintVisitor.prototype.CommentStatement = function(comment) {
 
 PrintVisitor.prototype.SubExpression = function(sexpr) {
   let params = sexpr.params,
-      paramStrings = [],
-      hash;
+    paramStrings = [],
+    hash;
 
   for (let i = 0, l = params.length; i < l; i++) {
     paramStrings.push(this.accept(params[i]));
@@ -134,7 +142,6 @@ PrintVisitor.prototype.PathExpression = function(id) {
   return (id.data ? '@' : '') + 'PATH:' + path;
 };
 
-
 PrintVisitor.prototype.StringLiteral = function(string) {
   return '"' + string.value + '"';
 };
@@ -157,7 +164,7 @@ PrintVisitor.prototype.NullLiteral = function() {
 
 PrintVisitor.prototype.Hash = function(hash) {
   let pairs = hash.pairs,
-      joinedPairs = [];
+    joinedPairs = [];
 
   for (let i = 0, l = pairs.length; i < l; i++) {
     joinedPairs.push(this.accept(pairs[i]));
diff --git a/lib/handlebars/compiler/visitor.js b/lib/handlebars/compiler/visitor.js
index 2c504d1b2..76bb01f12 100644
--- a/lib/handlebars/compiler/visitor.js
+++ b/lib/handlebars/compiler/visitor.js
@@ -15,7 +15,14 @@ Visitor.prototype = {
       // Hacky sanity check: This may have a few false positives for type for the helper
       // methods but will generally do the right thing without a lot of overhead.
       if (value && !Visitor.prototype[value.type]) {
-        throw new Exception('Unexpected node type "' + value.type + '" found when accepting ' + name + ' on ' + node.type);
+        throw new Exception(
+          'Unexpected node type "' +
+            value.type +
+            '" found when accepting ' +
+            name +
+            ' on ' +
+            node.type
+        );
       }
       node[name] = value;
     }
diff --git a/lib/handlebars/compiler/whitespace-control.js b/lib/handlebars/compiler/whitespace-control.js
index 8ebfbef57..7db683983 100644
--- a/lib/handlebars/compiler/whitespace-control.js
+++ b/lib/handlebars/compiler/whitespace-control.js
@@ -14,18 +14,18 @@ WhitespaceControl.prototype.Program = function(program) {
   let body = program.body;
   for (let i = 0, l = body.length; i < l; i++) {
     let current = body[i],
-        strip = this.accept(current);
+      strip = this.accept(current);
 
     if (!strip) {
       continue;
     }
 
     let _isPrevWhitespace = isPrevWhitespace(body, i, isRoot),
-        _isNextWhitespace = isNextWhitespace(body, i, isRoot),
-
-        openStandalone = strip.openStandalone && _isPrevWhitespace,
-        closeStandalone = strip.closeStandalone && _isNextWhitespace,
-        inlineStandalone = strip.inlineStandalone && _isPrevWhitespace && _isNextWhitespace;
+      _isNextWhitespace = isNextWhitespace(body, i, isRoot),
+      openStandalone = strip.openStandalone && _isPrevWhitespace,
+      closeStandalone = strip.closeStandalone && _isNextWhitespace,
+      inlineStandalone =
+        strip.inlineStandalone && _isPrevWhitespace && _isNextWhitespace;
 
     if (strip.close) {
       omitRight(body, i, true);
@@ -41,7 +41,7 @@ WhitespaceControl.prototype.Program = function(program) {
         // If we are on a standalone node, save the indent info for partials
         if (current.type === 'PartialStatement') {
           // Pull out the whitespace from the final line
-          current.indent = (/([ \t]+$)/).exec(body[i - 1].original)[1];
+          current.indent = /([ \t]+$)/.exec(body[i - 1].original)[1];
         }
       }
     }
@@ -62,17 +62,17 @@ WhitespaceControl.prototype.Program = function(program) {
   return program;
 };
 
-WhitespaceControl.prototype.BlockStatement =
-WhitespaceControl.prototype.DecoratorBlock =
-WhitespaceControl.prototype.PartialBlockStatement = function(block) {
+WhitespaceControl.prototype.BlockStatement = WhitespaceControl.prototype.DecoratorBlock = WhitespaceControl.prototype.PartialBlockStatement = function(
+  block
+) {
   this.accept(block.program);
   this.accept(block.inverse);
 
   // Find the inverse program that is involed with whitespace stripping.
   let program = block.program || block.inverse,
-      inverse = block.program && block.inverse,
-      firstInverse = inverse,
-      lastInverse = inverse;
+    inverse = block.program && block.inverse,
+    firstInverse = inverse,
+    lastInverse = inverse;
 
   if (inverse && inverse.chained) {
     firstInverse = inverse.body[0].program;
@@ -112,9 +112,11 @@ WhitespaceControl.prototype.PartialBlockStatement = function(block) {
     }
 
     // Find standalone else statments
-    if (!this.options.ignoreStandalone
-        && isPrevWhitespace(program.body)
-        && isNextWhitespace(firstInverse.body)) {
+    if (
+      !this.options.ignoreStandalone &&
+      isPrevWhitespace(program.body) &&
+      isNextWhitespace(firstInverse.body)
+    ) {
       omitLeft(program.body);
       omitRight(firstInverse.body);
     }
@@ -125,13 +127,15 @@ WhitespaceControl.prototype.PartialBlockStatement = function(block) {
   return strip;
 };
 
-WhitespaceControl.prototype.Decorator =
-WhitespaceControl.prototype.MustacheStatement = function(mustache) {
+WhitespaceControl.prototype.Decorator = WhitespaceControl.prototype.MustacheStatement = function(
+  mustache
+) {
   return mustache.strip;
 };
 
-WhitespaceControl.prototype.PartialStatement =
-    WhitespaceControl.prototype.CommentStatement = function(node) {
+WhitespaceControl.prototype.PartialStatement = WhitespaceControl.prototype.CommentStatement = function(
+  node
+) {
   /* istanbul ignore next */
   let strip = node.strip || {};
   return {
@@ -141,7 +145,6 @@ WhitespaceControl.prototype.PartialStatement =
   };
 };
 
-
 function isPrevWhitespace(body, i, isRoot) {
   if (i === undefined) {
     i = body.length;
@@ -150,13 +153,15 @@ function isPrevWhitespace(body, i, isRoot) {
   // Nodes that end with newlines are considered whitespace (but are special
   // cased for strip operations)
   let prev = body[i - 1],
-      sibling = body[i - 2];
+    sibling = body[i - 2];
   if (!prev) {
     return isRoot;
   }
 
   if (prev.type === 'ContentStatement') {
-    return (sibling || !isRoot ? (/\r?\n\s*?$/) : (/(^|\r?\n)\s*?$/)).test(prev.original);
+    return (sibling || !isRoot ? /\r?\n\s*?$/ : /(^|\r?\n)\s*?$/).test(
+      prev.original
+    );
   }
 }
 function isNextWhitespace(body, i, isRoot) {
@@ -165,13 +170,15 @@ function isNextWhitespace(body, i, isRoot) {
   }
 
   let next = body[i + 1],
-      sibling = body[i + 2];
+    sibling = body[i + 2];
   if (!next) {
     return isRoot;
   }
 
   if (next.type === 'ContentStatement') {
-    return (sibling || !isRoot ? (/^\s*?\r?\n/) : (/^\s*?(\r?\n|$)/)).test(next.original);
+    return (sibling || !isRoot ? /^\s*?\r?\n/ : /^\s*?(\r?\n|$)/).test(
+      next.original
+    );
   }
 }
 
@@ -184,12 +191,19 @@ function isNextWhitespace(body, i, isRoot) {
 // content is met.
 function omitRight(body, i, multiple) {
   let current = body[i == null ? 0 : i + 1];
-  if (!current || current.type !== 'ContentStatement' || (!multiple && current.rightStripped)) {
+  if (
+    !current ||
+    current.type !== 'ContentStatement' ||
+    (!multiple && current.rightStripped)
+  ) {
     return;
   }
 
   let original = current.value;
-  current.value = current.value.replace(multiple ? (/^\s+/) : (/^[ \t]*\r?\n?/), '');
+  current.value = current.value.replace(
+    multiple ? /^\s+/ : /^[ \t]*\r?\n?/,
+    ''
+  );
   current.rightStripped = current.value !== original;
 }
 
@@ -202,13 +216,17 @@ function omitRight(body, i, multiple) {
 // content is met.
 function omitLeft(body, i, multiple) {
   let current = body[i == null ? body.length - 1 : i - 1];
-  if (!current || current.type !== 'ContentStatement' || (!multiple && current.leftStripped)) {
+  if (
+    !current ||
+    current.type !== 'ContentStatement' ||
+    (!multiple && current.leftStripped)
+  ) {
     return;
   }
 
   // We omit the last node if it's whitespace only and not preceded by a non-content node.
   let original = current.value;
-  current.value = current.value.replace(multiple ? (/\s+$/) : (/[ \t]+$/), '');
+  current.value = current.value.replace(multiple ? /\s+$/ : /[ \t]+$/, '');
   current.leftStripped = current.value !== original;
   return current.leftStripped;
 }
diff --git a/lib/handlebars/decorators.js b/lib/handlebars/decorators.js
index 6f5a61525..d9d5e8a96 100644
--- a/lib/handlebars/decorators.js
+++ b/lib/handlebars/decorators.js
@@ -3,4 +3,3 @@ import registerInline from './decorators/inline';
 export function registerDefaultDecorators(instance) {
   registerInline(instance);
 }
-
diff --git a/lib/handlebars/decorators/inline.js b/lib/handlebars/decorators/inline.js
index 214246620..02f5be7b5 100644
--- a/lib/handlebars/decorators/inline.js
+++ b/lib/handlebars/decorators/inline.js
@@ -1,4 +1,4 @@
-import {extend} from '../utils';
+import { extend } from '../utils';
 
 export default function(instance) {
   instance.registerDecorator('inline', function(fn, props, container, options) {
diff --git a/lib/handlebars/exception.js b/lib/handlebars/exception.js
index 6333f1907..b2fdc00bc 100644
--- a/lib/handlebars/exception.js
+++ b/lib/handlebars/exception.js
@@ -1,12 +1,20 @@
-
-const errorProps = ['description', 'fileName', 'lineNumber', 'endLineNumber', 'message', 'name', 'number', 'stack'];
+const errorProps = [
+  'description',
+  'fileName',
+  'lineNumber',
+  'endLineNumber',
+  'message',
+  'name',
+  'number',
+  'stack'
+];
 
 function Exception(message, node) {
   let loc = node && node.loc,
-      line,
-      endLineNumber,
-      column,
-      endColumn;
+    line,
+    endLineNumber,
+    column,
+    endColumn;
 
   if (loc) {
     line = loc.start.line;
diff --git a/lib/handlebars/helpers/block-helper-missing.js b/lib/handlebars/helpers/block-helper-missing.js
index 6639ddb9d..9aeea9b97 100644
--- a/lib/handlebars/helpers/block-helper-missing.js
+++ b/lib/handlebars/helpers/block-helper-missing.js
@@ -1,9 +1,9 @@
-import {appendContextPath, createFrame, isArray} from '../utils';
+import { appendContextPath, createFrame, isArray } from '../utils';
 
 export default function(instance) {
   instance.registerHelper('blockHelperMissing', function(context, options) {
     let inverse = options.inverse,
-        fn = options.fn;
+      fn = options.fn;
 
     if (context === true) {
       return fn(this);
@@ -22,8 +22,11 @@ export default function(instance) {
     } else {
       if (options.data && options.ids) {
         let data = createFrame(options.data);
-        data.contextPath = appendContextPath(options.data.contextPath, options.name);
-        options = {data: data};
+        data.contextPath = appendContextPath(
+          options.data.contextPath,
+          options.name
+        );
+        options = { data: data };
       }
 
       return fn(context, options);
diff --git a/lib/handlebars/helpers/each.js b/lib/handlebars/helpers/each.js
index 8e57b7782..c1fa20f39 100644
--- a/lib/handlebars/helpers/each.js
+++ b/lib/handlebars/helpers/each.js
@@ -1,4 +1,10 @@
-import {appendContextPath, blockParams, createFrame, isArray, isFunction} from '../utils';
+import {
+  appendContextPath,
+  blockParams,
+  createFrame,
+  isArray,
+  isFunction
+} from '../utils';
 import Exception from '../exception';
 
 export default function(instance) {
@@ -8,17 +14,20 @@ export default function(instance) {
     }
 
     let fn = options.fn,
-        inverse = options.inverse,
-        i = 0,
-        ret = '',
-        data,
-        contextPath;
+      inverse = options.inverse,
+      i = 0,
+      ret = '',
+      data,
+      contextPath;
 
     if (options.data && options.ids) {
-      contextPath = appendContextPath(options.data.contextPath, options.ids[0]) + '.';
+      contextPath =
+        appendContextPath(options.data.contextPath, options.ids[0]) + '.';
     }
 
-    if (isFunction(context)) { context = context.call(this); }
+    if (isFunction(context)) {
+      context = context.call(this);
+    }
 
     if (options.data) {
       data = createFrame(options.data);
@@ -36,10 +45,15 @@ export default function(instance) {
         }
       }
 
-      ret = ret + fn(context[field], {
-        data: data,
-        blockParams: blockParams([context[field], field], [contextPath + field, null])
-      });
+      ret =
+        ret +
+        fn(context[field], {
+          data: data,
+          blockParams: blockParams(
+            [context[field], field],
+            [contextPath + field, null]
+          )
+        });
     }
 
     if (context && typeof context === 'object') {
diff --git a/lib/handlebars/helpers/helper-missing.js b/lib/handlebars/helpers/helper-missing.js
index ec32e8245..f8869e9c9 100644
--- a/lib/handlebars/helpers/helper-missing.js
+++ b/lib/handlebars/helpers/helper-missing.js
@@ -7,7 +7,9 @@ export default function(instance) {
       return undefined;
     } else {
       // Someone is actually trying to call something, blow up.
-      throw new Exception('Missing helper: "' + arguments[arguments.length - 1].name + '"');
+      throw new Exception(
+        'Missing helper: "' + arguments[arguments.length - 1].name + '"'
+      );
     }
   });
 }
diff --git a/lib/handlebars/helpers/if.js b/lib/handlebars/helpers/if.js
index 5be88b70a..55241ecb7 100644
--- a/lib/handlebars/helpers/if.js
+++ b/lib/handlebars/helpers/if.js
@@ -3,8 +3,12 @@ import Exception from '../exception';
 
 export default function(instance) {
   instance.registerHelper('if', function(conditional, options) {
-    if (arguments.length != 2) { throw new Exception('#if requires exactly one argument');}
-    if (isFunction(conditional)) { conditional = conditional.call(this); }
+    if (arguments.length != 2) {
+      throw new Exception('#if requires exactly one argument');
+    }
+    if (isFunction(conditional)) {
+      conditional = conditional.call(this);
+    }
 
     // Default behavior is to render the positive path if the value is truthy and not empty.
     // The `includeZero` option may be set to treat the condtional as purely not empty based on the
@@ -17,7 +21,13 @@ export default function(instance) {
   });
 
   instance.registerHelper('unless', function(conditional, options) {
-    if (arguments.length != 2) { throw new Exception('#unless requires exactly one argument');}
-    return instance.helpers['if'].call(this, conditional, {fn: options.inverse, inverse: options.fn, hash: options.hash});
+    if (arguments.length != 2) {
+      throw new Exception('#unless requires exactly one argument');
+    }
+    return instance.helpers['if'].call(this, conditional, {
+      fn: options.inverse,
+      inverse: options.fn,
+      hash: options.hash
+    });
   });
 }
diff --git a/lib/handlebars/helpers/log.js b/lib/handlebars/helpers/log.js
index 4bde4a10d..ab0d73646 100644
--- a/lib/handlebars/helpers/log.js
+++ b/lib/handlebars/helpers/log.js
@@ -1,7 +1,7 @@
 export default function(instance) {
   instance.registerHelper('log', function(/* message, options */) {
     let args = [undefined],
-        options = arguments[arguments.length - 1];
+      options = arguments[arguments.length - 1];
     for (let i = 0; i < arguments.length - 1; i++) {
       args.push(arguments[i]);
     }
@@ -14,6 +14,6 @@ export default function(instance) {
     }
     args[0] = level;
 
-    instance.log(... args);
+    instance.log(...args);
   });
 }
diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index 8c1b604be..66de538b6 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -5,7 +5,10 @@ export default function(instance) {
     if (!obj) {
       return obj;
     }
-    if (dangerousPropertyRegex.test(String(field)) && !Object.prototype.propertyIsEnumerable.call(obj, field)) {
+    if (
+      dangerousPropertyRegex.test(String(field)) &&
+      !Object.prototype.propertyIsEnumerable.call(obj, field)
+    ) {
       return undefined;
     }
     return obj[field];
diff --git a/lib/handlebars/helpers/with.js b/lib/handlebars/helpers/with.js
index cfeab4240..eb1cf1a90 100644
--- a/lib/handlebars/helpers/with.js
+++ b/lib/handlebars/helpers/with.js
@@ -1,10 +1,20 @@
-import { appendContextPath, blockParams, createFrame, isEmpty, isFunction } from '../utils';
+import {
+  appendContextPath,
+  blockParams,
+  createFrame,
+  isEmpty,
+  isFunction
+} from '../utils';
 import Exception from '../exception';
 
 export default function(instance) {
   instance.registerHelper('with', function(context, options) {
-    if (arguments.length != 2) { throw new Exception('#with requires exactly one argument');}
-    if (isFunction(context)) { context = context.call(this); }
+    if (arguments.length != 2) {
+      throw new Exception('#with requires exactly one argument');
+    }
+    if (isFunction(context)) {
+      context = context.call(this);
+    }
 
     let fn = options.fn;
 
@@ -12,7 +22,10 @@ export default function(instance) {
       let data = options.data;
       if (options.data && options.ids) {
         data = createFrame(options.data);
-        data.contextPath = appendContextPath(options.data.contextPath, options.ids[0]);
+        data.contextPath = appendContextPath(
+          options.data.contextPath,
+          options.ids[0]
+        );
       }
 
       return fn(context, {
diff --git a/lib/handlebars/logger.js b/lib/handlebars/logger.js
index 1e916a995..bc411b250 100644
--- a/lib/handlebars/logger.js
+++ b/lib/handlebars/logger.js
@@ -1,4 +1,4 @@
-import {indexOf} from './utils';
+import { indexOf } from './utils';
 
 let logger = {
   methodMap: ['debug', 'info', 'warn', 'error'],
@@ -22,9 +22,13 @@ let logger = {
   log: function(level, ...message) {
     level = logger.lookupLevel(level);
 
-    if (typeof console !== 'undefined' && logger.lookupLevel(logger.level) <= level) {
+    if (
+      typeof console !== 'undefined' &&
+      logger.lookupLevel(logger.level) <= level
+    ) {
       let method = logger.methodMap[level];
-      if (!console[method]) { // eslint-disable-line no-console
+      // eslint-disable-next-line no-console
+      if (!console[method]) {
         method = 'log';
       }
       console[method](...message); // eslint-disable-line no-console
diff --git a/lib/handlebars/no-conflict.js b/lib/handlebars/no-conflict.js
index 40a44d7a6..618b750f0 100644
--- a/lib/handlebars/no-conflict.js
+++ b/lib/handlebars/no-conflict.js
@@ -1,8 +1,7 @@
-/* global window */
 export default function(Handlebars) {
   /* istanbul ignore next */
   let root = typeof global !== 'undefined' ? global : window,
-      $Handlebars = root.Handlebars;
+    $Handlebars = root.Handlebars;
   /* istanbul ignore next */
   Handlebars.noConflict = function() {
     if (root.Handlebars === Handlebars) {
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 59b1cc106..4d67895af 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -1,30 +1,47 @@
 import * as Utils from './utils';
 import Exception from './exception';
-import {COMPILER_REVISION, createFrame, LAST_COMPATIBLE_COMPILER_REVISION, REVISION_CHANGES} from './base';
-import {moveHelperToHooks} from './helpers';
+import {
+  COMPILER_REVISION,
+  createFrame,
+  LAST_COMPATIBLE_COMPILER_REVISION,
+  REVISION_CHANGES
+} from './base';
+import { moveHelperToHooks } from './helpers';
 
 export function checkRevision(compilerInfo) {
-  const compilerRevision = compilerInfo && compilerInfo[0] || 1,
-        currentRevision = COMPILER_REVISION;
+  const compilerRevision = (compilerInfo && compilerInfo[0]) || 1,
+    currentRevision = COMPILER_REVISION;
 
-  if (compilerRevision >= LAST_COMPATIBLE_COMPILER_REVISION && compilerRevision <= COMPILER_REVISION) {
+  if (
+    compilerRevision >= LAST_COMPATIBLE_COMPILER_REVISION &&
+    compilerRevision <= COMPILER_REVISION
+  ) {
     return;
   }
 
   if (compilerRevision < LAST_COMPATIBLE_COMPILER_REVISION) {
     const runtimeVersions = REVISION_CHANGES[currentRevision],
-          compilerVersions = REVISION_CHANGES[compilerRevision];
-    throw new Exception('Template was precompiled with an older version of Handlebars than the current runtime. ' +
-          'Please update your precompiler to a newer version (' + runtimeVersions + ') or downgrade your runtime to an older version (' + compilerVersions + ').');
+      compilerVersions = REVISION_CHANGES[compilerRevision];
+    throw new Exception(
+      'Template was precompiled with an older version of Handlebars than the current runtime. ' +
+        'Please update your precompiler to a newer version (' +
+        runtimeVersions +
+        ') or downgrade your runtime to an older version (' +
+        compilerVersions +
+        ').'
+    );
   } else {
     // Use the embedded version info since the runtime doesn't know about this revision yet
-    throw new Exception('Template was precompiled with a newer version of Handlebars than the current runtime. ' +
-          'Please update your runtime to a newer version (' + compilerInfo[1] + ').');
+    throw new Exception(
+      'Template was precompiled with a newer version of Handlebars than the current runtime. ' +
+        'Please update your runtime to a newer version (' +
+        compilerInfo[1] +
+        ').'
+    );
   }
 }
 
 export function template(templateSpec, env) {
-
   /* istanbul ignore next */
   if (!env) {
     throw new Exception('No environment passed to template');
@@ -40,7 +57,8 @@ export function template(templateSpec, env) {
   env.VM.checkRevision(templateSpec.compiler);
 
   // backwards compatibility for precompiled templates with compiler-version 7 (<4.3.0)
-  const templateWasPrecompiledWithCompilerV7 = templateSpec.compiler && templateSpec.compiler[0] === 7;
+  const templateWasPrecompiledWithCompilerV7 =
+    templateSpec.compiler && templateSpec.compiler[0] === 7;
 
   function invokePartialWrapper(partial, context, options) {
     if (options.hash) {
@@ -51,12 +69,21 @@ export function template(templateSpec, env) {
     }
     partial = env.VM.resolvePartial.call(this, partial, context, options);
 
-    let optionsWithHooks = Utils.extend({}, options, {hooks: this.hooks});
+    let optionsWithHooks = Utils.extend({}, options, { hooks: this.hooks });
 
-    let result = env.VM.invokePartial.call(this, partial, context, optionsWithHooks);
+    let result = env.VM.invokePartial.call(
+      this,
+      partial,
+      context,
+      optionsWithHooks
+    );
 
     if (result == null && env.compile) {
-      options.partials[options.name] = env.compile(partial, templateSpec.compilerOptions, env);
+      options.partials[options.name] = env.compile(
+        partial,
+        templateSpec.compilerOptions,
+        env
+      );
       result = options.partials[options.name](context, optionsWithHooks);
     }
     if (result != null) {
@@ -73,7 +100,11 @@ export function template(templateSpec, env) {
       }
       return result;
     } else {
-      throw new Exception('The partial ' + options.name + ' could not be compiled when running in runtime-only mode');
+      throw new Exception(
+        'The partial ' +
+          options.name +
+          ' could not be compiled when running in runtime-only mode'
+      );
     }
   }
 
@@ -81,7 +112,9 @@ export function template(templateSpec, env) {
   let container = {
     strict: function(obj, name, loc) {
       if (!obj || !(name in obj)) {
-        throw new Exception('"' + name + '" not defined in ' + obj, { loc: loc });
+        throw new Exception('"' + name + '" not defined in ' + obj, {
+          loc: loc
+        });
       }
       return obj[name];
     },
@@ -109,9 +142,17 @@ export function template(templateSpec, env) {
     programs: [],
     program: function(i, data, declaredBlockParams, blockParams, depths) {
       let programWrapper = this.programs[i],
-          fn = this.fn(i);
+        fn = this.fn(i);
       if (data || depths || blockParams || declaredBlockParams) {
-        programWrapper = wrapProgram(this, i, fn, data, declaredBlockParams, blockParams, depths);
+        programWrapper = wrapProgram(
+          this,
+          i,
+          fn,
+          data,
+          declaredBlockParams,
+          blockParams,
+          depths
+        );
       } else if (!programWrapper) {
         programWrapper = this.programs[i] = wrapProgram(this, i, fn);
       }
@@ -127,7 +168,7 @@ export function template(templateSpec, env) {
     mergeIfNeeded: function(param, common) {
       let obj = param || common;
 
-      if (param && common && (param !== common)) {
+      if (param && common && param !== common) {
         obj = Utils.extend({}, common, param);
       }
 
@@ -148,19 +189,40 @@ export function template(templateSpec, env) {
       data = initData(context, data);
     }
     let depths,
-        blockParams = templateSpec.useBlockParams ? [] : undefined;
+      blockParams = templateSpec.useBlockParams ? [] : undefined;
     if (templateSpec.useDepths) {
       if (options.depths) {
-        depths = context != options.depths[0] ? [context].concat(options.depths) : options.depths;
+        depths =
+          context != options.depths[0]
+            ? [context].concat(options.depths)
+            : options.depths;
       } else {
         depths = [context];
       }
     }
 
-    function main(context/*, options*/) {
-      return '' + templateSpec.main(container, context, container.helpers, container.partials, data, blockParams, depths);
+    function main(context /*, options*/) {
+      return (
+        '' +
+        templateSpec.main(
+          container,
+          context,
+          container.helpers,
+          container.partials,
+          data,
+          blockParams,
+          depths
+        )
+      );
     }
-    main = executeDecorators(templateSpec.main, main, container, options.depths || [], data, blockParams);
+    main = executeDecorators(
+      templateSpec.main,
+      main,
+      container,
+      options.depths || [],
+      data,
+      blockParams
+    );
     return main(context, options);
   }
   ret.isTop = true;
@@ -171,25 +233,32 @@ export function template(templateSpec, env) {
 
       if (templateSpec.usePartial) {
         // Use mergeIfNeeded here to prevent compiling global partials multiple times
-        container.partials = container.mergeIfNeeded(options.partials, env.partials);
+        container.partials = container.mergeIfNeeded(
+          options.partials,
+          env.partials
+        );
       }
       if (templateSpec.usePartial || templateSpec.useDecorators) {
-        container.decorators = Utils.extend({}, env.decorators, options.decorators);
+        container.decorators = Utils.extend(
+          {},
+          env.decorators,
+          options.decorators
+        );
       }
 
       container.hooks = {};
 
-      let keepHelperInHelpers = options.allowCallsToHelperMissing || templateWasPrecompiledWithCompilerV7;
+      let keepHelperInHelpers =
+        options.allowCallsToHelperMissing ||
+        templateWasPrecompiledWithCompilerV7;
       moveHelperToHooks(container, 'helperMissing', keepHelperInHelpers);
       moveHelperToHooks(container, 'blockHelperMissing', keepHelperInHelpers);
-
     } else {
       container.helpers = options.helpers;
       container.partials = options.partials;
       container.decorators = options.decorators;
       container.hooks = options.hooks;
     }
-
   };
 
   ret._child = function(i, data, blockParams, depths) {
@@ -200,24 +269,47 @@ export function template(templateSpec, env) {
       throw new Exception('must pass parent depths');
     }
 
-    return wrapProgram(container, i, templateSpec[i], data, 0, blockParams, depths);
+    return wrapProgram(
+      container,
+      i,
+      templateSpec[i],
+      data,
+      0,
+      blockParams,
+      depths
+    );
   };
   return ret;
 }
 
-export function wrapProgram(container, i, fn, data, declaredBlockParams, blockParams, depths) {
+export function wrapProgram(
+  container,
+  i,
+  fn,
+  data,
+  declaredBlockParams,
+  blockParams,
+  depths
+) {
   function prog(context, options = {}) {
     let currentDepths = depths;
-    if (depths && context != depths[0] && !(context === container.nullContext && depths[0] === null)) {
+    if (
+      depths &&
+      context != depths[0] &&
+      !(context === container.nullContext && depths[0] === null)
+    ) {
       currentDepths = [context].concat(depths);
     }
 
-    return fn(container,
-        context,
-        container.helpers, container.partials,
-        options.data || data,
-        blockParams && [options.blockParams].concat(blockParams),
-        currentDepths);
+    return fn(
+      container,
+      context,
+      container.helpers,
+      container.partials,
+      options.data || data,
+      blockParams && [options.blockParams].concat(blockParams),
+      currentDepths
+    );
   }
 
   prog = executeDecorators(fn, prog, container, depths, data, blockParams);
@@ -259,8 +351,10 @@ export function invokePartial(partial, context, options) {
     options.data = createFrame(options.data);
     // Wrapper function to get access to currentPartialBlock from the closure
     let fn = options.fn;
-    partialBlock = options.data['partial-block'] = function partialBlockWrapper(context, options = {}) {
-
+    partialBlock = options.data['partial-block'] = function partialBlockWrapper(
+      context,
+      options = {}
+    ) {
       // Restore the partial-block from the closure for the execution of the block
       // i.e. the part inside the block of the partial call.
       options.data = createFrame(options.data);
@@ -283,7 +377,9 @@ export function invokePartial(partial, context, options) {
   }
 }
 
-export function noop() { return ''; }
+export function noop() {
+  return '';
+}
 
 function initData(context, data) {
   if (!data || !('root' in data)) {
@@ -296,7 +392,15 @@ function initData(context, data) {
 function executeDecorators(fn, prog, container, depths, data, blockParams) {
   if (fn.decorator) {
     let props = {};
-    prog = fn.decorator(prog, props, container, depths && depths[0], data, blockParams, depths);
+    prog = fn.decorator(
+      prog,
+      props,
+      container,
+      depths && depths[0],
+      data,
+      blockParams,
+      depths
+    );
     Utils.extend(prog, props);
   }
   return prog;
diff --git a/lib/handlebars/utils.js b/lib/handlebars/utils.js
index 8e1a4014f..6fa43b23c 100644
--- a/lib/handlebars/utils.js
+++ b/lib/handlebars/utils.js
@@ -1,4 +1,3 @@
-
 const escape = {
   '&': '&amp;',
   '<': '&lt;',
@@ -10,13 +9,13 @@ const escape = {
 };
 
 const badChars = /[&<>"'`=]/g,
-      possible = /[&<>"'`=]/;
+  possible = /[&<>"'`=]/;
 
 function escapeChar(chr) {
   return escape[chr];
 }
 
-export function extend(obj/* , ...source */) {
+export function extend(obj /* , ...source */) {
   for (let i = 1; i < arguments.length; i++) {
     for (let key in arguments[i]) {
       if (Object.prototype.hasOwnProperty.call(arguments[i], key)) {
@@ -40,16 +39,23 @@ let isFunction = function(value) {
 /* istanbul ignore next */
 if (isFunction(/x/)) {
   isFunction = function(value) {
-    return typeof value === 'function' && toString.call(value) === '[object Function]';
+    return (
+      typeof value === 'function' &&
+      toString.call(value) === '[object Function]'
+    );
   };
 }
-export {isFunction};
+export { isFunction };
 /* eslint-enable func-style */
 
 /* istanbul ignore next */
-export const isArray = Array.isArray || function(value) {
-  return (value && typeof value === 'object') ? toString.call(value) === '[object Array]' : false;
-};
+export const isArray =
+  Array.isArray ||
+  function(value) {
+    return value && typeof value === 'object'
+      ? toString.call(value) === '[object Array]'
+      : false;
+  };
 
 // Older IE versions do not directly support indexOf so we must implement our own, sadly.
 export function indexOf(array, value) {
@@ -61,7 +67,6 @@ export function indexOf(array, value) {
   return -1;
 }
 
-
 export function escapeExpression(string) {
   if (typeof string !== 'string') {
     // don't escape SafeStrings, since they're already safe
@@ -79,7 +84,9 @@ export function escapeExpression(string) {
     string = '' + string;
   }
 
-  if (!possible.test(string)) { return string; }
+  if (!possible.test(string)) {
+    return string;
+  }
   return string.replace(badChars, escapeChar);
 }
 
diff --git a/lib/precompiler.js b/lib/precompiler.js
index ecf264eff..689c9f4d9 100644
--- a/lib/precompiler.js
+++ b/lib/precompiler.js
@@ -2,9 +2,8 @@
 import Async from 'neo-async';
 import fs from 'fs';
 import * as Handlebars from './handlebars';
-import {basename} from 'path';
-import {SourceMapConsumer, SourceNode} from 'source-map';
-
+import { basename } from 'path';
+import { SourceMapConsumer, SourceNode } from 'source-map';
 
 module.exports.loadTemplates = function(opts, callback) {
   loadStrings(opts, function(err, strings) {
@@ -25,14 +24,19 @@ module.exports.loadTemplates = function(opts, callback) {
 
 function loadStrings(opts, callback) {
   let strings = arrayCast(opts.string),
-      names = arrayCast(opts.name);
-
-  if (names.length !== strings.length
-      && strings.length > 1) {
-    return callback(new Handlebars.Exception('Number of names did not match the number of string inputs'));
+    names = arrayCast(opts.name);
+
+  if (names.length !== strings.length && strings.length > 1) {
+    return callback(
+      new Handlebars.Exception(
+        'Number of names did not match the number of string inputs'
+      )
+    );
   }
 
-  Async.map(strings, function(string, callback) {
+  Async.map(
+    strings,
+    function(string, callback) {
       if (string !== '-') {
         callback(undefined, string);
       } else {
@@ -55,80 +59,94 @@ function loadStrings(opts, callback) {
         source: string
       }));
       callback(err, strings);
-    });
+    }
+  );
 }
 
 function loadFiles(opts, callback) {
   // Build file extension pattern
-  let extension = (opts.extension || 'handlebars').replace(/[\\^$*+?.():=!|{}\-[\]]/g, function(arg) { return '\\' + arg; });
+  let extension = (opts.extension || 'handlebars').replace(
+    /[\\^$*+?.():=!|{}\-[\]]/g,
+    function(arg) {
+      return '\\' + arg;
+    }
+  );
   extension = new RegExp('\\.' + extension + '$');
 
   let ret = [],
-      queue = (opts.files || []).map((template) => ({template, root: opts.root}));
-  Async.whilst(() => queue.length, function(callback) {
-    let {template: path, root} = queue.shift();
+    queue = (opts.files || []).map(template => ({ template, root: opts.root }));
+  Async.whilst(
+    () => queue.length,
+    function(callback) {
+      let { template: path, root } = queue.shift();
 
-    fs.stat(path, function(err, stat) {
-      if (err) {
-        return callback(new Handlebars.Exception(`Unable to open template file "${path}"`));
-      }
-
-      if (stat.isDirectory()) {
-        opts.hasDirectory = true;
+      fs.stat(path, function(err, stat) {
+        if (err) {
+          return callback(
+            new Handlebars.Exception(`Unable to open template file "${path}"`)
+          );
+        }
 
-        fs.readdir(path, function(err, children) {
-          /* istanbul ignore next : Race condition that being too lazy to test */
-          if (err) {
-            return callback(err);
-          }
-          children.forEach(function(file) {
-            let childPath = path + '/' + file;
+        if (stat.isDirectory()) {
+          opts.hasDirectory = true;
 
-            if (extension.test(childPath) || fs.statSync(childPath).isDirectory()) {
-              queue.push({template: childPath, root: root || path});
+          fs.readdir(path, function(err, children) {
+            /* istanbul ignore next : Race condition that being too lazy to test */
+            if (err) {
+              return callback(err);
             }
+            children.forEach(function(file) {
+              let childPath = path + '/' + file;
+
+              if (
+                extension.test(childPath) ||
+                fs.statSync(childPath).isDirectory()
+              ) {
+                queue.push({ template: childPath, root: root || path });
+              }
+            });
+
+            callback();
           });
+        } else {
+          fs.readFile(path, 'utf8', function(err, data) {
+            /* istanbul ignore next : Race condition that being too lazy to test */
+            if (err) {
+              return callback(err);
+            }
 
-          callback();
-        });
-      } else {
-        fs.readFile(path, 'utf8', function(err, data) {
-          /* istanbul ignore next : Race condition that being too lazy to test */
-          if (err) {
-            return callback(err);
-          }
-
-          if (opts.bom && data.indexOf('\uFEFF') === 0) {
-            data = data.substring(1);
-          }
-
-          // Clean the template name
-          let name = path;
-          if (!root) {
-            name = basename(name);
-          } else if (name.indexOf(root) === 0) {
-            name = name.substring(root.length + 1);
-          }
-          name = name.replace(extension, '');
-
-          ret.push({
-            path: path,
-            name: name,
-            source: data
-          });
+            if (opts.bom && data.indexOf('\uFEFF') === 0) {
+              data = data.substring(1);
+            }
 
-          callback();
-        });
+            // Clean the template name
+            let name = path;
+            if (!root) {
+              name = basename(name);
+            } else if (name.indexOf(root) === 0) {
+              name = name.substring(root.length + 1);
+            }
+            name = name.replace(extension, '');
+
+            ret.push({
+              path: path,
+              name: name,
+              source: data
+            });
+
+            callback();
+          });
+        }
+      });
+    },
+    function(err) {
+      if (err) {
+        callback(err);
+      } else {
+        callback(undefined, ret);
       }
-    });
-  },
-  function(err) {
-    if (err) {
-      callback(err);
-    } else {
-      callback(undefined, ret);
     }
-  });
+  );
 }
 
 module.exports.cli = function(opts) {
@@ -138,7 +156,9 @@ module.exports.cli = function(opts) {
   }
 
   if (!opts.templates.length && !opts.hasDirectory) {
-    throw new Handlebars.Exception('Must define at least one template or directory.');
+    throw new Handlebars.Exception(
+      'Must define at least one template or directory.'
+    );
   }
 
   if (opts.simple && opts.min) {
@@ -147,12 +167,18 @@ module.exports.cli = function(opts) {
 
   const multiple = opts.templates.length !== 1 || opts.hasDirectory;
   if (opts.simple && multiple) {
-    throw new Handlebars.Exception('Unable to output multiple templates in simple mode');
+    throw new Handlebars.Exception(
+      'Unable to output multiple templates in simple mode'
+    );
   }
 
   // Force simple mode if we have only one template and it's unnamed.
-  if (!opts.amd && !opts.commonjs && opts.templates.length === 1
-      && !opts.templates[0].name) {
+  if (
+    !opts.amd &&
+    !opts.commonjs &&
+    opts.templates.length === 1 &&
+    !opts.templates[0].name
+  ) {
     opts.simple = true;
   }
 
@@ -172,7 +198,11 @@ module.exports.cli = function(opts) {
   let output = new SourceNode();
   if (!opts.simple) {
     if (opts.amd) {
-      output.add('define([\'' + opts.handlebarPath + 'handlebars.runtime\'], function(Handlebars) {\n  Handlebars = Handlebars["default"];');
+      output.add(
+        "define(['" +
+          opts.handlebarPath +
+          'handlebars.runtime\'], function(Handlebars) {\n  Handlebars = Handlebars["default"];'
+      );
     } else if (opts.commonjs) {
       output.add('var Handlebars = require("' + opts.commonjs + '");');
     } else {
@@ -206,7 +236,10 @@ module.exports.cli = function(opts) {
     // If we are generating a source map, we have to reconstruct the SourceNode object
     if (opts.map) {
       let consumer = new SourceMapConsumer(precompiled.map);
-      precompiled = SourceNode.fromStringWithSourceMap(precompiled.code, consumer);
+      precompiled = SourceNode.fromStringWithSourceMap(
+        precompiled.code,
+        consumer
+      );
     }
 
     if (opts.simple) {
@@ -219,7 +252,14 @@ module.exports.cli = function(opts) {
       if (opts.amd && !multiple) {
         output.add('return ');
       }
-      output.add([objectName, '[\'', template.name, '\'] = template(', precompiled, ');\n']);
+      output.add([
+        objectName,
+        "['",
+        template.name,
+        "'] = template(",
+        precompiled,
+        ');\n'
+      ]);
     }
   });
 
@@ -286,7 +326,9 @@ function minify(output, sourceMapFile) {
       throw e;
     }
     // it does not exist!
-    console.error('Code minimization is disabled due to missing uglify-js dependency');
+    console.error(
+      'Code minimization is disabled due to missing uglify-js dependency'
+    );
     return output;
   }
   return require('uglify-js').minify(output.code, {
diff --git a/spec/ast.js b/spec/ast.js
index ffd0a9589..1f4146ae0 100644
--- a/spec/ast.js
+++ b/spec/ast.js
@@ -7,44 +7,102 @@ describe('ast', function() {
 
   describe('BlockStatement', function() {
     it('should throw on mustache mismatch', function() {
-      shouldThrow(function() {
-        handlebarsEnv.parse('\n  {{#foo}}{{/bar}}');
-      }, Handlebars.Exception, "foo doesn't match bar - 2:5");
+      shouldThrow(
+        function() {
+          handlebarsEnv.parse('\n  {{#foo}}{{/bar}}');
+        },
+        Handlebars.Exception,
+        "foo doesn't match bar - 2:5"
+      );
     });
   });
 
   describe('helpers', function() {
     describe('#helperExpression', function() {
       it('should handle mustache statements', function() {
-        equals(AST.helpers.helperExpression({type: 'MustacheStatement', params: [], hash: undefined}), false);
-        equals(AST.helpers.helperExpression({type: 'MustacheStatement', params: [1], hash: undefined}), true);
-        equals(AST.helpers.helperExpression({type: 'MustacheStatement', params: [], hash: {}}), true);
+        equals(
+          AST.helpers.helperExpression({
+            type: 'MustacheStatement',
+            params: [],
+            hash: undefined
+          }),
+          false
+        );
+        equals(
+          AST.helpers.helperExpression({
+            type: 'MustacheStatement',
+            params: [1],
+            hash: undefined
+          }),
+          true
+        );
+        equals(
+          AST.helpers.helperExpression({
+            type: 'MustacheStatement',
+            params: [],
+            hash: {}
+          }),
+          true
+        );
       });
       it('should handle block statements', function() {
-        equals(AST.helpers.helperExpression({type: 'BlockStatement', params: [], hash: undefined}), false);
-        equals(AST.helpers.helperExpression({type: 'BlockStatement', params: [1], hash: undefined}), true);
-        equals(AST.helpers.helperExpression({type: 'BlockStatement', params: [], hash: {}}), true);
+        equals(
+          AST.helpers.helperExpression({
+            type: 'BlockStatement',
+            params: [],
+            hash: undefined
+          }),
+          false
+        );
+        equals(
+          AST.helpers.helperExpression({
+            type: 'BlockStatement',
+            params: [1],
+            hash: undefined
+          }),
+          true
+        );
+        equals(
+          AST.helpers.helperExpression({
+            type: 'BlockStatement',
+            params: [],
+            hash: {}
+          }),
+          true
+        );
       });
       it('should handle subexpressions', function() {
-        equals(AST.helpers.helperExpression({type: 'SubExpression'}), true);
+        equals(AST.helpers.helperExpression({ type: 'SubExpression' }), true);
       });
       it('should work with non-helper nodes', function() {
-        equals(AST.helpers.helperExpression({type: 'Program'}), false);
-
-        equals(AST.helpers.helperExpression({type: 'PartialStatement'}), false);
-        equals(AST.helpers.helperExpression({type: 'ContentStatement'}), false);
-        equals(AST.helpers.helperExpression({type: 'CommentStatement'}), false);
-
-        equals(AST.helpers.helperExpression({type: 'PathExpression'}), false);
-
-        equals(AST.helpers.helperExpression({type: 'StringLiteral'}), false);
-        equals(AST.helpers.helperExpression({type: 'NumberLiteral'}), false);
-        equals(AST.helpers.helperExpression({type: 'BooleanLiteral'}), false);
-        equals(AST.helpers.helperExpression({type: 'UndefinedLiteral'}), false);
-        equals(AST.helpers.helperExpression({type: 'NullLiteral'}), false);
-
-        equals(AST.helpers.helperExpression({type: 'Hash'}), false);
-        equals(AST.helpers.helperExpression({type: 'HashPair'}), false);
+        equals(AST.helpers.helperExpression({ type: 'Program' }), false);
+
+        equals(
+          AST.helpers.helperExpression({ type: 'PartialStatement' }),
+          false
+        );
+        equals(
+          AST.helpers.helperExpression({ type: 'ContentStatement' }),
+          false
+        );
+        equals(
+          AST.helpers.helperExpression({ type: 'CommentStatement' }),
+          false
+        );
+
+        equals(AST.helpers.helperExpression({ type: 'PathExpression' }), false);
+
+        equals(AST.helpers.helperExpression({ type: 'StringLiteral' }), false);
+        equals(AST.helpers.helperExpression({ type: 'NumberLiteral' }), false);
+        equals(AST.helpers.helperExpression({ type: 'BooleanLiteral' }), false);
+        equals(
+          AST.helpers.helperExpression({ type: 'UndefinedLiteral' }),
+          false
+        );
+        equals(AST.helpers.helperExpression({ type: 'NullLiteral' }), false);
+
+        equals(AST.helpers.helperExpression({ type: 'Hash' }), false);
+        equals(AST.helpers.helperExpression({ type: 'HashPair' }), false);
       });
     });
   });
@@ -61,17 +119,18 @@ describe('ast', function() {
 
     /* eslint-disable no-multi-spaces */
     ast = Handlebars.parse(
-              'line 1 {{line1Token}}\n'             // 1
-            + ' line 2 {{line2token}}\n'            // 2
-            + ' line 3 {{#blockHelperOnLine3}}\n'   // 3
-            + 'line 4{{line4token}}\n'              // 4
-            + 'line5{{else}}\n'                     // 5
-            + '{{line6Token}}\n'                    // 6
-            + '{{/blockHelperOnLine3}}\n'           // 7
-            + '{{#open}}\n'                         // 8
-            + '{{else inverse}}\n'                  // 9
-            + '{{else}}\n'                          // 10
-            + '{{/open}}');                         // 11
+      'line 1 {{line1Token}}\n' + // 1
+      ' line 2 {{line2token}}\n' + // 2
+      ' line 3 {{#blockHelperOnLine3}}\n' + // 3
+      'line 4{{line4token}}\n' + // 4
+      'line5{{else}}\n' + // 5
+      '{{line6Token}}\n' + // 6
+      '{{/blockHelperOnLine3}}\n' + // 7
+      '{{#open}}\n' + // 8
+      '{{else inverse}}\n' + // 9
+      '{{else}}\n' + // 10
+        '{{/open}}'
+    ); // 11
     /* eslint-enable no-multi-spaces */
     body = ast.body;
 
@@ -92,35 +151,35 @@ describe('ast', function() {
     it('gets MustacheStatement line numbers correct across newlines', function() {
       var secondMustacheStatement = body[3];
       testColumns(secondMustacheStatement, 2, 2, 8, 22);
-     });
+    });
 
-     it('gets the block helper information correct', function() {
-       var blockHelperNode = body[5];
-       testColumns(blockHelperNode, 3, 7, 8, 23);
-     });
+    it('gets the block helper information correct', function() {
+      var blockHelperNode = body[5];
+      testColumns(blockHelperNode, 3, 7, 8, 23);
+    });
 
-     it('correctly records the line numbers the program of a block helper', function() {
-       var blockHelperNode = body[5],
-           program = blockHelperNode.program;
+    it('correctly records the line numbers the program of a block helper', function() {
+      var blockHelperNode = body[5],
+        program = blockHelperNode.program;
 
-       testColumns(program, 3, 5, 31, 5);
-     });
+      testColumns(program, 3, 5, 31, 5);
+    });
 
-     it('correctly records the line numbers of an inverse of a block helper', function() {
-       var blockHelperNode = body[5],
-           inverse = blockHelperNode.inverse;
+    it('correctly records the line numbers of an inverse of a block helper', function() {
+      var blockHelperNode = body[5],
+        inverse = blockHelperNode.inverse;
 
-       testColumns(inverse, 5, 7, 13, 0);
-     });
+      testColumns(inverse, 5, 7, 13, 0);
+    });
 
-     it('correctly records the line number of chained inverses', function() {
-       var chainInverseNode = body[7];
+    it('correctly records the line number of chained inverses', function() {
+      var chainInverseNode = body[7];
 
-       testColumns(chainInverseNode.program, 8, 9, 9, 0);
-       testColumns(chainInverseNode.inverse, 9, 10, 16, 0);
-       testColumns(chainInverseNode.inverse.body[0].program, 9, 10, 16, 0);
-       testColumns(chainInverseNode.inverse.body[0].inverse, 10, 11, 8, 0);
-     });
+      testColumns(chainInverseNode.program, 8, 9, 9, 0);
+      testColumns(chainInverseNode.inverse, 9, 10, 16, 0);
+      testColumns(chainInverseNode.inverse.body[0].program, 9, 10, 16, 0);
+      testColumns(chainInverseNode.inverse.body[0].inverse, 10, 11, 8, 0);
+    });
   });
 
   describe('whitespace control', function() {
@@ -149,7 +208,9 @@ describe('ast', function() {
       });
 
       it('block statements', function() {
-        var ast = Handlebars.parseWithoutProcessing(' {{# comment~}} \nfoo\n {{~/comment}}');
+        var ast = Handlebars.parseWithoutProcessing(
+          ' {{# comment~}} \nfoo\n {{~/comment}}'
+        );
 
         equals(ast.body[0].value, ' ');
         equals(ast.body[1].program.body[0].value, ' \nfoo\n ');
@@ -167,7 +228,9 @@ describe('ast', function() {
     });
     describe('blocks - parseWithoutProcessing', function() {
       it('block mustaches', function() {
-        var ast = Handlebars.parseWithoutProcessing(' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
+        var ast = Handlebars.parseWithoutProcessing(
+            ' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '
+          ),
           block = ast.body[1];
 
         equals(ast.body[0].value, ' ');
@@ -178,13 +241,17 @@ describe('ast', function() {
         equals(ast.body[2].value, ' ');
       });
       it('initial block mustaches', function() {
-        var ast = Handlebars.parseWithoutProcessing('{{# comment}} \nfoo\n {{/comment}}'),
+        var ast = Handlebars.parseWithoutProcessing(
+            '{{# comment}} \nfoo\n {{/comment}}'
+          ),
           block = ast.body[0];
 
         equals(block.program.body[0].value, ' \nfoo\n ');
       });
       it('mustaches with children', function() {
-        var ast = Handlebars.parseWithoutProcessing('{{# comment}} \n{{foo}}\n {{/comment}}'),
+        var ast = Handlebars.parseWithoutProcessing(
+            '{{# comment}} \n{{foo}}\n {{/comment}}'
+          ),
           block = ast.body[0];
 
         equals(block.program.body[0].value, ' \n');
@@ -192,7 +259,9 @@ describe('ast', function() {
         equals(block.program.body[2].value, '\n ');
       });
       it('nested block mustaches', function() {
-        var ast = Handlebars.parseWithoutProcessing('{{#foo}} \n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} \n{{/foo}}'),
+        var ast = Handlebars.parseWithoutProcessing(
+            '{{#foo}} \n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} \n{{/foo}}'
+          ),
           body = ast.body[0].program.body,
           block = body[1];
 
@@ -202,8 +271,10 @@ describe('ast', function() {
         equals(block.inverse.body[0].value, ' \n  bar \n  ');
       });
       it('column 0 block mustaches', function() {
-        var ast = Handlebars.parseWithoutProcessing('test\n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
-            block = ast.body[1];
+        var ast = Handlebars.parseWithoutProcessing(
+            'test\n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '
+          ),
+          block = ast.body[1];
 
         equals(ast.body[0].omit, undefined);
 
@@ -215,8 +286,10 @@ describe('ast', function() {
     });
     describe('blocks', function() {
       it('marks block mustaches as standalone', function() {
-        var ast = Handlebars.parse(' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
-            block = ast.body[1];
+        var ast = Handlebars.parse(
+            ' {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '
+          ),
+          block = ast.body[1];
 
         equals(ast.body[0].value, '');
 
@@ -227,22 +300,24 @@ describe('ast', function() {
       });
       it('marks initial block mustaches as standalone', function() {
         var ast = Handlebars.parse('{{# comment}} \nfoo\n {{/comment}}'),
-            block = ast.body[0];
+          block = ast.body[0];
 
         equals(block.program.body[0].value, 'foo\n');
       });
       it('marks mustaches with children as standalone', function() {
         var ast = Handlebars.parse('{{# comment}} \n{{foo}}\n {{/comment}}'),
-            block = ast.body[0];
+          block = ast.body[0];
 
         equals(block.program.body[0].value, '');
         equals(block.program.body[1].path.original, 'foo');
         equals(block.program.body[2].value, '\n');
       });
       it('marks nested block mustaches as standalone', function() {
-        var ast = Handlebars.parse('{{#foo}} \n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} \n{{/foo}}'),
-            body = ast.body[0].program.body,
-            block = body[1];
+        var ast = Handlebars.parse(
+            '{{#foo}} \n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} \n{{/foo}}'
+          ),
+          body = ast.body[0].program.body,
+          block = body[1];
 
         equals(body[0].value, '');
 
@@ -252,9 +327,11 @@ describe('ast', function() {
         equals(body[0].value, '');
       });
       it('does not mark nested block mustaches as standalone', function() {
-        var ast = Handlebars.parse('{{#foo}} {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} {{/foo}}'),
-            body = ast.body[0].program.body,
-            block = body[1];
+        var ast = Handlebars.parse(
+            '{{#foo}} {{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} {{/foo}}'
+          ),
+          body = ast.body[0].program.body,
+          block = body[1];
 
         equals(body[0].omit, undefined);
 
@@ -264,9 +341,11 @@ describe('ast', function() {
         equals(body[0].omit, undefined);
       });
       it('does not mark nested initial block mustaches as standalone', function() {
-        var ast = Handlebars.parse('{{#foo}}{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}}{{/foo}}'),
-            body = ast.body[0].program.body,
-            block = body[0];
+        var ast = Handlebars.parse(
+            '{{#foo}}{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}}{{/foo}}'
+          ),
+          body = ast.body[0].program.body,
+          block = body[0];
 
         equals(block.program.body[0].value, ' \nfoo\n');
         equals(block.inverse.body[0].value, '  bar \n  ');
@@ -275,8 +354,10 @@ describe('ast', function() {
       });
 
       it('marks column 0 block mustaches as standalone', function() {
-        var ast = Handlebars.parse('test\n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '),
-            block = ast.body[1];
+        var ast = Handlebars.parse(
+            'test\n{{# comment}} \nfoo\n {{else}} \n  bar \n  {{/comment}} '
+          ),
+          block = ast.body[1];
 
         equals(ast.body[0].omit, undefined);
 
@@ -348,4 +429,3 @@ describe('ast', function() {
     });
   });
 });
-
diff --git a/spec/basic.js b/spec/basic.js
index e4b253665..65d228729 100644
--- a/spec/basic.js
+++ b/spec/basic.js
@@ -18,8 +18,12 @@ describe('basic context', function() {
   });
 
   it('compiling with a basic context', function() {
-    shouldCompileTo('Goodbye\n{{cruel}}\n{{world}}!', {cruel: 'cruel', world: 'world'}, 'Goodbye\ncruel\nworld!',
-                    'It works if all the required keys are provided');
+    shouldCompileTo(
+      'Goodbye\n{{cruel}}\n{{world}}!',
+      { cruel: 'cruel', world: 'world' },
+      'Goodbye\ncruel\nworld!',
+      'It works if all the required keys are provided'
+    );
   });
 
   it('compiling with a string context', function() {
@@ -27,15 +31,26 @@ describe('basic context', function() {
   });
 
   it('compiling with an undefined context', function() {
-    shouldCompileTo('Goodbye\n{{cruel}}\n{{world.bar}}!', undefined, 'Goodbye\n\n!');
+    shouldCompileTo(
+      'Goodbye\n{{cruel}}\n{{world.bar}}!',
+      undefined,
+      'Goodbye\n\n!'
+    );
 
-    shouldCompileTo('{{#unless foo}}Goodbye{{../test}}{{test2}}{{/unless}}', undefined, 'Goodbye');
+    shouldCompileTo(
+      '{{#unless foo}}Goodbye{{../test}}{{test2}}{{/unless}}',
+      undefined,
+      'Goodbye'
+    );
   });
 
   it('comments', function() {
-    shouldCompileTo('{{! Goodbye}}Goodbye\n{{cruel}}\n{{world}}!',
-      {cruel: 'cruel', world: 'world'}, 'Goodbye\ncruel\nworld!',
-      'comments are ignored');
+    shouldCompileTo(
+      '{{! Goodbye}}Goodbye\n{{cruel}}\n{{world}}!',
+      { cruel: 'cruel', world: 'world' },
+      'Goodbye\ncruel\nworld!',
+      'comments are ignored'
+    );
 
     shouldCompileTo('    {{~! comment ~}}      blah', {}, 'blah');
     shouldCompileTo('    {{~!-- long-comment --~}}      blah', {}, 'blah');
@@ -47,237 +62,506 @@ describe('basic context', function() {
 
   it('boolean', function() {
     var string = '{{#goodbye}}GOODBYE {{/goodbye}}cruel {{world}}!';
-    shouldCompileTo(string, {goodbye: true, world: 'world'}, 'GOODBYE cruel world!',
-                    'booleans show the contents when true');
+    shouldCompileTo(
+      string,
+      { goodbye: true, world: 'world' },
+      'GOODBYE cruel world!',
+      'booleans show the contents when true'
+    );
 
-    shouldCompileTo(string, {goodbye: false, world: 'world'}, 'cruel world!',
-                    'booleans do not show the contents when false');
+    shouldCompileTo(
+      string,
+      { goodbye: false, world: 'world' },
+      'cruel world!',
+      'booleans do not show the contents when false'
+    );
   });
 
   it('zeros', function() {
-    shouldCompileTo('num1: {{num1}}, num2: {{num2}}', {num1: 42, num2: 0},
-        'num1: 42, num2: 0');
+    shouldCompileTo(
+      'num1: {{num1}}, num2: {{num2}}',
+      { num1: 42, num2: 0 },
+      'num1: 42, num2: 0'
+    );
     shouldCompileTo('num: {{.}}', 0, 'num: 0');
-    shouldCompileTo('num: {{num1/num2}}', {num1: {num2: 0}}, 'num: 0');
+    shouldCompileTo('num: {{num1/num2}}', { num1: { num2: 0 } }, 'num: 0');
   });
   it('false', function() {
     /* eslint-disable no-new-wrappers */
-    shouldCompileTo('val1: {{val1}}, val2: {{val2}}', {val1: false, val2: new Boolean(false)}, 'val1: false, val2: false');
+    shouldCompileTo(
+      'val1: {{val1}}, val2: {{val2}}',
+      { val1: false, val2: new Boolean(false) },
+      'val1: false, val2: false'
+    );
     shouldCompileTo('val: {{.}}', false, 'val: false');
-    shouldCompileTo('val: {{val1/val2}}', {val1: {val2: false}}, 'val: false');
+    shouldCompileTo(
+      'val: {{val1/val2}}',
+      { val1: { val2: false } },
+      'val: false'
+    );
 
-    shouldCompileTo('val1: {{{val1}}}, val2: {{{val2}}}', {val1: false, val2: new Boolean(false)}, 'val1: false, val2: false');
-    shouldCompileTo('val: {{{val1/val2}}}', {val1: {val2: false}}, 'val: false');
+    shouldCompileTo(
+      'val1: {{{val1}}}, val2: {{{val2}}}',
+      { val1: false, val2: new Boolean(false) },
+      'val1: false, val2: false'
+    );
+    shouldCompileTo(
+      'val: {{{val1/val2}}}',
+      { val1: { val2: false } },
+      'val: false'
+    );
     /* eslint-enable */
   });
 
   it('should handle undefined and null', function() {
-    shouldCompileTo('{{awesome undefined null}}',
-        {
-          awesome: function(_undefined, _null, options) {
-            return (_undefined === undefined) + ' ' + (_null === null) + ' ' + (typeof options);
-          }
-        },
-        'true true object');
-    shouldCompileTo('{{undefined}}',
-        {
-          'undefined': function() {
-            return 'undefined!';
-          }
-        },
-        'undefined!');
-    shouldCompileTo('{{null}}',
-        {
-          'null': function() {
-            return 'null!';
-          }
-        },
-        'null!');
+    shouldCompileTo(
+      '{{awesome undefined null}}',
+      {
+        awesome: function(_undefined, _null, options) {
+          return (
+            (_undefined === undefined) +
+            ' ' +
+            (_null === null) +
+            ' ' +
+            typeof options
+          );
+        }
+      },
+      'true true object'
+    );
+    shouldCompileTo(
+      '{{undefined}}',
+      {
+        undefined: function() {
+          return 'undefined!';
+        }
+      },
+      'undefined!'
+    );
+    shouldCompileTo(
+      '{{null}}',
+      {
+        null: function() {
+          return 'null!';
+        }
+      },
+      'null!'
+    );
   });
 
   it('newlines', function() {
-      shouldCompileTo("Alan's\nTest", {}, "Alan's\nTest");
-      shouldCompileTo("Alan's\rTest", {}, "Alan's\rTest");
+    shouldCompileTo("Alan's\nTest", {}, "Alan's\nTest");
+    shouldCompileTo("Alan's\rTest", {}, "Alan's\rTest");
   });
 
   it('escaping text', function() {
-    shouldCompileTo("Awesome's", {}, "Awesome's", "text is escaped so that it doesn't get caught on single quotes");
-    shouldCompileTo('Awesome\\', {}, 'Awesome\\', "text is escaped so that the closing quote can't be ignored");
-    shouldCompileTo('Awesome\\\\ foo', {}, 'Awesome\\\\ foo', "text is escaped so that it doesn't mess up backslashes");
-    shouldCompileTo('Awesome {{foo}}', {foo: '\\'}, 'Awesome \\', "text is escaped so that it doesn't mess up backslashes");
-    shouldCompileTo(" ' ' ", {}, " ' ' ", 'double quotes never produce invalid javascript');
+    shouldCompileTo(
+      "Awesome's",
+      {},
+      "Awesome's",
+      "text is escaped so that it doesn't get caught on single quotes"
+    );
+    shouldCompileTo(
+      'Awesome\\',
+      {},
+      'Awesome\\',
+      "text is escaped so that the closing quote can't be ignored"
+    );
+    shouldCompileTo(
+      'Awesome\\\\ foo',
+      {},
+      'Awesome\\\\ foo',
+      "text is escaped so that it doesn't mess up backslashes"
+    );
+    shouldCompileTo(
+      'Awesome {{foo}}',
+      { foo: '\\' },
+      'Awesome \\',
+      "text is escaped so that it doesn't mess up backslashes"
+    );
+    shouldCompileTo(
+      " ' ' ",
+      {},
+      " ' ' ",
+      'double quotes never produce invalid javascript'
+    );
   });
 
   it('escaping expressions', function() {
-   shouldCompileTo('{{{awesome}}}', {awesome: '&\'\\<>'}, '&\'\\<>',
-          "expressions with 3 handlebars aren't escaped");
+    shouldCompileTo(
+      '{{{awesome}}}',
+      { awesome: "&'\\<>" },
+      "&'\\<>",
+      "expressions with 3 handlebars aren't escaped"
+    );
 
-   shouldCompileTo('{{&awesome}}', {awesome: '&\'\\<>'}, '&\'\\<>',
-          "expressions with {{& handlebars aren't escaped");
+    shouldCompileTo(
+      '{{&awesome}}',
+      { awesome: "&'\\<>" },
+      "&'\\<>",
+      "expressions with {{& handlebars aren't escaped"
+    );
 
-   shouldCompileTo('{{awesome}}', {awesome: "&\"'`\\<>"}, '&amp;&quot;&#x27;&#x60;\\&lt;&gt;',
-          'by default expressions should be escaped');
+    shouldCompileTo(
+      '{{awesome}}',
+      { awesome: '&"\'`\\<>' },
+      '&amp;&quot;&#x27;&#x60;\\&lt;&gt;',
+      'by default expressions should be escaped'
+    );
 
-   shouldCompileTo('{{awesome}}', {awesome: 'Escaped, <b> looks like: &lt;b&gt;'}, 'Escaped, &lt;b&gt; looks like: &amp;lt;b&amp;gt;',
-          'escaping should properly handle amperstands');
+    shouldCompileTo(
+      '{{awesome}}',
+      { awesome: 'Escaped, <b> looks like: &lt;b&gt;' },
+      'Escaped, &lt;b&gt; looks like: &amp;lt;b&amp;gt;',
+      'escaping should properly handle amperstands'
+    );
   });
 
   it("functions returning safestrings shouldn't be escaped", function() {
-    var hash = {awesome: function() { return new Handlebars.SafeString('&\'\\<>'); }};
-    shouldCompileTo('{{awesome}}', hash, '&\'\\<>',
-        "functions returning safestrings aren't escaped");
+    var hash = {
+      awesome: function() {
+        return new Handlebars.SafeString("&'\\<>");
+      }
+    };
+    shouldCompileTo(
+      '{{awesome}}',
+      hash,
+      "&'\\<>",
+      "functions returning safestrings aren't escaped"
+    );
   });
 
   it('functions', function() {
-    shouldCompileTo('{{awesome}}', {awesome: function() { return 'Awesome'; }}, 'Awesome',
-                    'functions are called and render their output');
-    shouldCompileTo('{{awesome}}', {awesome: function() { return this.more; }, more: 'More awesome'}, 'More awesome',
-                    'functions are bound to the context');
+    shouldCompileTo(
+      '{{awesome}}',
+      {
+        awesome: function() {
+          return 'Awesome';
+        }
+      },
+      'Awesome',
+      'functions are called and render their output'
+    );
+    shouldCompileTo(
+      '{{awesome}}',
+      {
+        awesome: function() {
+          return this.more;
+        },
+        more: 'More awesome'
+      },
+      'More awesome',
+      'functions are bound to the context'
+    );
   });
 
   it('functions with context argument', function() {
-    shouldCompileTo('{{awesome frank}}',
-        {awesome: function(context) { return context; },
-          frank: 'Frank'},
-        'Frank', 'functions are called with context arguments');
+    shouldCompileTo(
+      '{{awesome frank}}',
+      {
+        awesome: function(context) {
+          return context;
+        },
+        frank: 'Frank'
+      },
+      'Frank',
+      'functions are called with context arguments'
+    );
   });
   it('pathed functions with context argument', function() {
-    shouldCompileTo('{{bar.awesome frank}}',
-        {bar: {awesome: function(context) { return context; }},
-          frank: 'Frank'},
-        'Frank', 'functions are called with context arguments');
+    shouldCompileTo(
+      '{{bar.awesome frank}}',
+      {
+        bar: {
+          awesome: function(context) {
+            return context;
+          }
+        },
+        frank: 'Frank'
+      },
+      'Frank',
+      'functions are called with context arguments'
+    );
   });
   it('depthed functions with context argument', function() {
-    shouldCompileTo('{{#with frank}}{{../awesome .}}{{/with}}',
-        {awesome: function(context) { return context; },
-          frank: 'Frank'},
-        'Frank', 'functions are called with context arguments');
+    shouldCompileTo(
+      '{{#with frank}}{{../awesome .}}{{/with}}',
+      {
+        awesome: function(context) {
+          return context;
+        },
+        frank: 'Frank'
+      },
+      'Frank',
+      'functions are called with context arguments'
+    );
   });
 
   it('block functions with context argument', function() {
-    shouldCompileTo('{{#awesome 1}}inner {{.}}{{/awesome}}',
-        {awesome: function(context, options) { return options.fn(context); }},
-        'inner 1', 'block functions are called with context and options');
+    shouldCompileTo(
+      '{{#awesome 1}}inner {{.}}{{/awesome}}',
+      {
+        awesome: function(context, options) {
+          return options.fn(context);
+        }
+      },
+      'inner 1',
+      'block functions are called with context and options'
+    );
   });
 
   it('depthed block functions with context argument', function() {
-    shouldCompileTo('{{#with value}}{{#../awesome 1}}inner {{.}}{{/../awesome}}{{/with}}',
-        {value: true, awesome: function(context, options) { return options.fn(context); }},
-        'inner 1', 'block functions are called with context and options');
+    shouldCompileTo(
+      '{{#with value}}{{#../awesome 1}}inner {{.}}{{/../awesome}}{{/with}}',
+      {
+        value: true,
+        awesome: function(context, options) {
+          return options.fn(context);
+        }
+      },
+      'inner 1',
+      'block functions are called with context and options'
+    );
   });
 
   it('block functions without context argument', function() {
-    shouldCompileTo('{{#awesome}}inner{{/awesome}}',
-        {awesome: function(options) { return options.fn(this); }},
-        'inner', 'block functions are called with options');
+    shouldCompileTo(
+      '{{#awesome}}inner{{/awesome}}',
+      {
+        awesome: function(options) {
+          return options.fn(this);
+        }
+      },
+      'inner',
+      'block functions are called with options'
+    );
   });
   it('pathed block functions without context argument', function() {
-    shouldCompileTo('{{#foo.awesome}}inner{{/foo.awesome}}',
-        {foo: {awesome: function() { return this; }}},
-        'inner', 'block functions are called with options');
+    shouldCompileTo(
+      '{{#foo.awesome}}inner{{/foo.awesome}}',
+      {
+        foo: {
+          awesome: function() {
+            return this;
+          }
+        }
+      },
+      'inner',
+      'block functions are called with options'
+    );
   });
   it('depthed block functions without context argument', function() {
-    shouldCompileTo('{{#with value}}{{#../awesome}}inner{{/../awesome}}{{/with}}',
-        {value: true, awesome: function() { return this; }},
-        'inner', 'block functions are called with options');
+    shouldCompileTo(
+      '{{#with value}}{{#../awesome}}inner{{/../awesome}}{{/with}}',
+      {
+        value: true,
+        awesome: function() {
+          return this;
+        }
+      },
+      'inner',
+      'block functions are called with options'
+    );
   });
 
-
   it('paths with hyphens', function() {
-    shouldCompileTo('{{foo-bar}}', {'foo-bar': 'baz'}, 'baz', 'Paths can contain hyphens (-)');
-    shouldCompileTo('{{foo.foo-bar}}', {foo: {'foo-bar': 'baz'}}, 'baz', 'Paths can contain hyphens (-)');
-    shouldCompileTo('{{foo/foo-bar}}', {foo: {'foo-bar': 'baz'}}, 'baz', 'Paths can contain hyphens (-)');
+    shouldCompileTo(
+      '{{foo-bar}}',
+      { 'foo-bar': 'baz' },
+      'baz',
+      'Paths can contain hyphens (-)'
+    );
+    shouldCompileTo(
+      '{{foo.foo-bar}}',
+      { foo: { 'foo-bar': 'baz' } },
+      'baz',
+      'Paths can contain hyphens (-)'
+    );
+    shouldCompileTo(
+      '{{foo/foo-bar}}',
+      { foo: { 'foo-bar': 'baz' } },
+      'baz',
+      'Paths can contain hyphens (-)'
+    );
   });
 
   it('nested paths', function() {
-    shouldCompileTo('Goodbye {{alan/expression}} world!', {alan: {expression: 'beautiful'}},
-                    'Goodbye beautiful world!', 'Nested paths access nested objects');
+    shouldCompileTo(
+      'Goodbye {{alan/expression}} world!',
+      { alan: { expression: 'beautiful' } },
+      'Goodbye beautiful world!',
+      'Nested paths access nested objects'
+    );
   });
 
   it('nested paths with empty string value', function() {
-    shouldCompileTo('Goodbye {{alan/expression}} world!', {alan: {expression: ''}},
-                    'Goodbye  world!', 'Nested paths access nested objects with empty string');
+    shouldCompileTo(
+      'Goodbye {{alan/expression}} world!',
+      { alan: { expression: '' } },
+      'Goodbye  world!',
+      'Nested paths access nested objects with empty string'
+    );
   });
 
   it('literal paths', function() {
-    shouldCompileTo('Goodbye {{[@alan]/expression}} world!', {'@alan': {expression: 'beautiful'}},
-        'Goodbye beautiful world!', 'Literal paths can be used');
-    shouldCompileTo('Goodbye {{[foo bar]/expression}} world!', {'foo bar': {expression: 'beautiful'}},
-        'Goodbye beautiful world!', 'Literal paths can be used');
+    shouldCompileTo(
+      'Goodbye {{[@alan]/expression}} world!',
+      { '@alan': { expression: 'beautiful' } },
+      'Goodbye beautiful world!',
+      'Literal paths can be used'
+    );
+    shouldCompileTo(
+      'Goodbye {{[foo bar]/expression}} world!',
+      { 'foo bar': { expression: 'beautiful' } },
+      'Goodbye beautiful world!',
+      'Literal paths can be used'
+    );
   });
 
   it('literal references', function() {
-    shouldCompileTo('Goodbye {{[foo bar]}} world!', {'foo bar': 'beautiful'}, 'Goodbye beautiful world!');
-    shouldCompileTo('Goodbye {{"foo bar"}} world!', {'foo bar': 'beautiful'}, 'Goodbye beautiful world!');
-    shouldCompileTo("Goodbye {{'foo bar'}} world!", {'foo bar': 'beautiful'}, 'Goodbye beautiful world!');
-    shouldCompileTo('Goodbye {{"foo[bar"}} world!', {'foo[bar': 'beautiful'}, 'Goodbye beautiful world!');
-    shouldCompileTo('Goodbye {{"foo\'bar"}} world!', {"foo'bar": 'beautiful'}, 'Goodbye beautiful world!');
-    shouldCompileTo("Goodbye {{'foo\"bar'}} world!", {'foo"bar': 'beautiful'}, 'Goodbye beautiful world!');
+    shouldCompileTo(
+      'Goodbye {{[foo bar]}} world!',
+      { 'foo bar': 'beautiful' },
+      'Goodbye beautiful world!'
+    );
+    shouldCompileTo(
+      'Goodbye {{"foo bar"}} world!',
+      { 'foo bar': 'beautiful' },
+      'Goodbye beautiful world!'
+    );
+    shouldCompileTo(
+      "Goodbye {{'foo bar'}} world!",
+      { 'foo bar': 'beautiful' },
+      'Goodbye beautiful world!'
+    );
+    shouldCompileTo(
+      'Goodbye {{"foo[bar"}} world!',
+      { 'foo[bar': 'beautiful' },
+      'Goodbye beautiful world!'
+    );
+    shouldCompileTo(
+      'Goodbye {{"foo\'bar"}} world!',
+      { "foo'bar": 'beautiful' },
+      'Goodbye beautiful world!'
+    );
+    shouldCompileTo(
+      "Goodbye {{'foo\"bar'}} world!",
+      { 'foo"bar': 'beautiful' },
+      'Goodbye beautiful world!'
+    );
   });
 
   it("that current context path ({{.}}) doesn't hit helpers", function() {
-    shouldCompileTo('test: {{.}}', [null, {helper: 'awesome'}], 'test: ');
+    shouldCompileTo('test: {{.}}', [null, { helper: 'awesome' }], 'test: ');
   });
 
   it('complex but empty paths', function() {
-    shouldCompileTo('{{person/name}}', {person: {name: null}}, '');
-    shouldCompileTo('{{person/name}}', {person: {}}, '');
+    shouldCompileTo('{{person/name}}', { person: { name: null } }, '');
+    shouldCompileTo('{{person/name}}', { person: {} }, '');
   });
 
   it('this keyword in paths', function() {
     var string = '{{#goodbyes}}{{this}}{{/goodbyes}}';
-    var hash = {goodbyes: ['goodbye', 'Goodbye', 'GOODBYE']};
-    shouldCompileTo(string, hash, 'goodbyeGoodbyeGOODBYE',
-      'This keyword in paths evaluates to current context');
+    var hash = { goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] };
+    shouldCompileTo(
+      string,
+      hash,
+      'goodbyeGoodbyeGOODBYE',
+      'This keyword in paths evaluates to current context'
+    );
 
     string = '{{#hellos}}{{this/text}}{{/hellos}}';
-    hash = {hellos: [{text: 'hello'}, {text: 'Hello'}, {text: 'HELLO'}]};
-    shouldCompileTo(string, hash, 'helloHelloHELLO', 'This keyword evaluates in more complex paths');
+    hash = {
+      hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
+    };
+    shouldCompileTo(
+      string,
+      hash,
+      'helloHelloHELLO',
+      'This keyword evaluates in more complex paths'
+    );
   });
 
   it('this keyword nested inside path', function() {
-    shouldThrow(function() {
-      CompilerContext.compile('{{#hellos}}{{text/this/foo}}{{/hellos}}');
-    }, Error, 'Invalid path: text/this - 1:13');
+    shouldThrow(
+      function() {
+        CompilerContext.compile('{{#hellos}}{{text/this/foo}}{{/hellos}}');
+      },
+      Error,
+      'Invalid path: text/this - 1:13'
+    );
 
-    shouldCompileTo('{{[this]}}', {'this': 'bar'}, 'bar');
-    shouldCompileTo('{{text/[this]}}', {text: {'this': 'bar'}}, 'bar');
+    shouldCompileTo('{{[this]}}', { this: 'bar' }, 'bar');
+    shouldCompileTo('{{text/[this]}}', { text: { this: 'bar' } }, 'bar');
   });
 
   it('this keyword in helpers', function() {
-    var helpers = {foo: function(value) {
+    var helpers = {
+      foo: function(value) {
         return 'bar ' + value;
-    }};
+      }
+    };
     var string = '{{#goodbyes}}{{foo this}}{{/goodbyes}}';
-    var hash = {goodbyes: ['goodbye', 'Goodbye', 'GOODBYE']};
-    shouldCompileTo(string, [hash, helpers], 'bar goodbyebar Goodbyebar GOODBYE',
-      'This keyword in paths evaluates to current context');
+    var hash = { goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      'bar goodbyebar Goodbyebar GOODBYE',
+      'This keyword in paths evaluates to current context'
+    );
 
     string = '{{#hellos}}{{foo this/text}}{{/hellos}}';
-    hash = {hellos: [{text: 'hello'}, {text: 'Hello'}, {text: 'HELLO'}]};
-    shouldCompileTo(string, [hash, helpers], 'bar hellobar Hellobar HELLO', 'This keyword evaluates in more complex paths');
+    hash = {
+      hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      'bar hellobar Hellobar HELLO',
+      'This keyword evaluates in more complex paths'
+    );
   });
 
   it('this keyword nested inside helpers param', function() {
     var string = '{{#hellos}}{{foo text/this/foo}}{{/hellos}}';
-    shouldThrow(function() {
-      CompilerContext.compile(string);
-    }, Error, 'Invalid path: text/this - 1:17');
+    shouldThrow(
+      function() {
+        CompilerContext.compile(string);
+      },
+      Error,
+      'Invalid path: text/this - 1:17'
+    );
 
     shouldCompileTo(
-        '{{foo [this]}}',
-        {foo: function(value) { return value; }, 'this': 'bar'},
-        'bar');
+      '{{foo [this]}}',
+      {
+        foo: function(value) {
+          return value;
+        },
+        this: 'bar'
+      },
+      'bar'
+    );
     shouldCompileTo(
-        '{{foo text/[this]}}',
-        {foo: function(value) { return value; }, text: {'this': 'bar'}},
-        'bar');
+      '{{foo text/[this]}}',
+      {
+        foo: function(value) {
+          return value;
+        },
+        text: { this: 'bar' }
+      },
+      'bar'
+    );
   });
 
   it('pass string literals', function() {
     shouldCompileTo('{{"foo"}}', {}, '');
     shouldCompileTo('{{"foo"}}', { foo: 'bar' }, 'bar');
-    shouldCompileTo('{{#"foo"}}{{.}}{{/"foo"}}', { foo: ['bar', 'baz'] }, 'barbaz');
+    shouldCompileTo(
+      '{{#"foo"}}{{.}}{{/"foo"}}',
+      { foo: ['bar', 'baz'] },
+      'barbaz'
+    );
   });
 
   it('pass number literals', function() {
@@ -285,13 +569,21 @@ describe('basic context', function() {
     shouldCompileTo('{{12}}', { '12': 'bar' }, 'bar');
     shouldCompileTo('{{12.34}}', {}, '');
     shouldCompileTo('{{12.34}}', { '12.34': 'bar' }, 'bar');
-    shouldCompileTo('{{12.34 1}}', { '12.34': function(arg) { return 'bar' + arg; } }, 'bar1');
+    shouldCompileTo(
+      '{{12.34 1}}',
+      {
+        '12.34': function(arg) {
+          return 'bar' + arg;
+        }
+      },
+      'bar1'
+    );
   });
 
   it('pass boolean literals', function() {
     shouldCompileTo('{{true}}', {}, '');
     shouldCompileTo('{{true}}', { '': 'foo' }, '');
-    shouldCompileTo('{{false}}', { 'false': 'foo' }, 'foo');
+    shouldCompileTo('{{false}}', { false: 'foo' }, 'foo');
   });
 
   it('should handle literals in subexpression', function() {
@@ -300,6 +592,17 @@ describe('basic context', function() {
         return arg;
       }
     };
-    shouldCompileTo('{{foo (false)}}', [{ 'false': function() { return 'bar'; } }, helpers], 'bar');
+    shouldCompileTo(
+      '{{foo (false)}}',
+      [
+        {
+          false: function() {
+            return 'bar';
+          }
+        },
+        helpers
+      ],
+      'bar'
+    );
   });
 });
diff --git a/spec/blocks.js b/spec/blocks.js
index 2fbaee7cc..1ef2d1be2 100644
--- a/spec/blocks.js
+++ b/spec/blocks.js
@@ -1,51 +1,99 @@
 describe('blocks', function() {
   it('array', function() {
     var string = '{{#goodbyes}}{{text}}! {{/goodbyes}}cruel {{world}}!';
-    var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
-    shouldCompileTo(string, hash, 'goodbye! Goodbye! GOODBYE! cruel world!',
-                    'Arrays iterate over the contents when not empty');
-
-    shouldCompileTo(string, {goodbyes: [], world: 'world'}, 'cruel world!',
-                    'Arrays ignore the contents when empty');
+    var hash = {
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
+      world: 'world'
+    };
+    shouldCompileTo(
+      string,
+      hash,
+      'goodbye! Goodbye! GOODBYE! cruel world!',
+      'Arrays iterate over the contents when not empty'
+    );
+
+    shouldCompileTo(
+      string,
+      { goodbyes: [], world: 'world' },
+      'cruel world!',
+      'Arrays ignore the contents when empty'
+    );
   });
 
   it('array without data', function() {
-    var string = '{{#goodbyes}}{{text}}{{/goodbyes}} {{#goodbyes}}{{text}}{{/goodbyes}}';
-    var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
-    shouldCompileTo(string, [hash,,, false], 'goodbyeGoodbyeGOODBYE goodbyeGoodbyeGOODBYE');
+    var string =
+      '{{#goodbyes}}{{text}}{{/goodbyes}} {{#goodbyes}}{{text}}{{/goodbyes}}';
+    var hash = {
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
+      world: 'world'
+    };
+    shouldCompileTo(
+      string,
+      [hash, , , false],
+      'goodbyeGoodbyeGOODBYE goodbyeGoodbyeGOODBYE'
+    );
   });
 
   it('array with @index', function() {
-    var string = '{{#goodbyes}}{{@index}}. {{text}}! {{/goodbyes}}cruel {{world}}!';
-    var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+    var string =
+      '{{#goodbyes}}{{@index}}. {{text}}! {{/goodbyes}}cruel {{world}}!';
+    var hash = {
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
+      world: 'world'
+    };
 
     var template = CompilerContext.compile(string);
     var result = template(hash);
 
-    equal(result, '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!', 'The @index variable is used');
+    equal(
+      result,
+      '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
+      'The @index variable is used'
+    );
   });
 
   it('empty block', function() {
     var string = '{{#goodbyes}}{{/goodbyes}}cruel {{world}}!';
-    var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
-    shouldCompileTo(string, hash, 'cruel world!',
-                    'Arrays iterate over the contents when not empty');
-
-    shouldCompileTo(string, {goodbyes: [], world: 'world'}, 'cruel world!',
-                    'Arrays ignore the contents when empty');
+    var hash = {
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
+      world: 'world'
+    };
+    shouldCompileTo(
+      string,
+      hash,
+      'cruel world!',
+      'Arrays iterate over the contents when not empty'
+    );
+
+    shouldCompileTo(
+      string,
+      { goodbyes: [], world: 'world' },
+      'cruel world!',
+      'Arrays ignore the contents when empty'
+    );
   });
 
   it('block with complex lookup', function() {
     var string = '{{#goodbyes}}{{text}} cruel {{../name}}! {{/goodbyes}}';
-    var hash = {name: 'Alan', goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}]};
-
-    shouldCompileTo(string, hash, 'goodbye cruel Alan! Goodbye cruel Alan! GOODBYE cruel Alan! ',
-                    'Templates can access variables in contexts up the stack with relative path syntax');
+    var hash = {
+      name: 'Alan',
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }]
+    };
+
+    shouldCompileTo(
+      string,
+      hash,
+      'goodbye cruel Alan! Goodbye cruel Alan! GOODBYE cruel Alan! ',
+      'Templates can access variables in contexts up the stack with relative path syntax'
+    );
   });
 
   it('multiple blocks with complex lookup', function() {
     var string = '{{#goodbyes}}{{../name}}{{../name}}{{/goodbyes}}';
-    var hash = {name: 'Alan', goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}]};
+    var hash = {
+      name: 'Alan',
+      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }]
+    };
 
     shouldCompileTo(string, hash, 'AlanAlanAlanAlanAlanAlan');
   });
@@ -59,111 +107,201 @@ describe('blocks', function() {
   });
 
   it('block with deep nested complex lookup', function() {
-    var string = '{{#outer}}Goodbye {{#inner}}cruel {{../sibling}} {{../../omg}}{{/inner}}{{/outer}}';
-    var hash = {omg: 'OMG!', outer: [{ sibling: 'sad', inner: [{ text: 'goodbye' }] }] };
+    var string =
+      '{{#outer}}Goodbye {{#inner}}cruel {{../sibling}} {{../../omg}}{{/inner}}{{/outer}}';
+    var hash = {
+      omg: 'OMG!',
+      outer: [{ sibling: 'sad', inner: [{ text: 'goodbye' }] }]
+    };
 
     shouldCompileTo(string, hash, 'Goodbye cruel sad OMG!');
   });
 
   it('works with cached blocks', function() {
-    var template = CompilerContext.compile('{{#each person}}{{#with .}}{{first}} {{last}}{{/with}}{{/each}}', {data: false});
-
-    var result = template({person: [{first: 'Alan', last: 'Johnson'}, {first: 'Alan', last: 'Johnson'}]});
+    var template = CompilerContext.compile(
+      '{{#each person}}{{#with .}}{{first}} {{last}}{{/with}}{{/each}}',
+      { data: false }
+    );
+
+    var result = template({
+      person: [
+        { first: 'Alan', last: 'Johnson' },
+        { first: 'Alan', last: 'Johnson' }
+      ]
+    });
     equals(result, 'Alan JohnsonAlan Johnson');
   });
 
   describe('inverted sections', function() {
     it('inverted sections with unset value', function() {
-      var string = '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
+      var string =
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
       var hash = {};
-      shouldCompileTo(string, hash, 'Right On!', "Inverted section rendered when value isn't set.");
+      shouldCompileTo(
+        string,
+        hash,
+        'Right On!',
+        "Inverted section rendered when value isn't set."
+      );
     });
 
     it('inverted section with false value', function() {
-      var string = '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
-      var hash = {goodbyes: false};
-      shouldCompileTo(string, hash, 'Right On!', 'Inverted section rendered when value is false.');
+      var string =
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
+      var hash = { goodbyes: false };
+      shouldCompileTo(
+        string,
+        hash,
+        'Right On!',
+        'Inverted section rendered when value is false.'
+      );
     });
 
     it('inverted section with empty set', function() {
-      var string = '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
-      var hash = {goodbyes: []};
-      shouldCompileTo(string, hash, 'Right On!', 'Inverted section rendered when value is empty set.');
+      var string =
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
+      var hash = { goodbyes: [] };
+      shouldCompileTo(
+        string,
+        hash,
+        'Right On!',
+        'Inverted section rendered when value is empty set.'
+      );
     });
 
     it('block inverted sections', function() {
-      shouldCompileTo('{{#people}}{{name}}{{^}}{{none}}{{/people}}', {none: 'No people'},
-        'No people');
+      shouldCompileTo(
+        '{{#people}}{{name}}{{^}}{{none}}{{/people}}',
+        { none: 'No people' },
+        'No people'
+      );
     });
     it('chained inverted sections', function() {
-      shouldCompileTo('{{#people}}{{name}}{{else if none}}{{none}}{{/people}}', {none: 'No people'},
-        'No people');
-      shouldCompileTo('{{#people}}{{name}}{{else if nothere}}fail{{else unless nothere}}{{none}}{{/people}}', {none: 'No people'},
-        'No people');
-      shouldCompileTo('{{#people}}{{name}}{{else if none}}{{none}}{{else}}fail{{/people}}', {none: 'No people'},
-        'No people');
+      shouldCompileTo(
+        '{{#people}}{{name}}{{else if none}}{{none}}{{/people}}',
+        { none: 'No people' },
+        'No people'
+      );
+      shouldCompileTo(
+        '{{#people}}{{name}}{{else if nothere}}fail{{else unless nothere}}{{none}}{{/people}}',
+        { none: 'No people' },
+        'No people'
+      );
+      shouldCompileTo(
+        '{{#people}}{{name}}{{else if none}}{{none}}{{else}}fail{{/people}}',
+        { none: 'No people' },
+        'No people'
+      );
     });
     it('chained inverted sections with mismatch', function() {
       shouldThrow(function() {
-        shouldCompileTo('{{#people}}{{name}}{{else if none}}{{none}}{{/if}}', {none: 'No people'},
-          'No people');
+        shouldCompileTo(
+          '{{#people}}{{name}}{{else if none}}{{none}}{{/if}}',
+          { none: 'No people' },
+          'No people'
+        );
       }, Error);
     });
 
     it('block inverted sections with empty arrays', function() {
-      shouldCompileTo('{{#people}}{{name}}{{^}}{{none}}{{/people}}', {none: 'No people', people: []},
-        'No people');
+      shouldCompileTo(
+        '{{#people}}{{name}}{{^}}{{none}}{{/people}}',
+        { none: 'No people', people: [] },
+        'No people'
+      );
     });
   });
 
   describe('standalone sections', function() {
     it('block standalone else sections', function() {
-      shouldCompileTo('{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n', {none: 'No people'},
-        'No people\n');
-      shouldCompileTo('{{#none}}\n{{.}}\n{{^}}\n{{none}}\n{{/none}}\n', {none: 'No people'},
-        'No people\n');
-      shouldCompileTo('{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n', {none: 'No people'},
-        'No people\n');
+      shouldCompileTo(
+        '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
+        { none: 'No people' },
+        'No people\n'
+      );
+      shouldCompileTo(
+        '{{#none}}\n{{.}}\n{{^}}\n{{none}}\n{{/none}}\n',
+        { none: 'No people' },
+        'No people\n'
+      );
+      shouldCompileTo(
+        '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
+        { none: 'No people' },
+        'No people\n'
+      );
     });
     it('block standalone else sections can be disabled', function() {
       shouldCompileTo(
         '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
-        [{none: 'No people'}, {}, {}, {ignoreStandalone: true}],
-        '\nNo people\n\n');
+        [{ none: 'No people' }, {}, {}, { ignoreStandalone: true }],
+        '\nNo people\n\n'
+      );
       shouldCompileTo(
         '{{#none}}\n{{.}}\n{{^}}\nFail\n{{/none}}\n',
-        [{none: 'No people'}, {}, {}, {ignoreStandalone: true}],
-        '\nNo people\n\n');
+        [{ none: 'No people' }, {}, {}, { ignoreStandalone: true }],
+        '\nNo people\n\n'
+      );
     });
     it('block standalone chained else sections', function() {
-      shouldCompileTo('{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{/people}}\n', {none: 'No people'},
-        'No people\n');
-      shouldCompileTo('{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{^}}\n{{/people}}\n', {none: 'No people'},
-        'No people\n');
+      shouldCompileTo(
+        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{/people}}\n',
+        { none: 'No people' },
+        'No people\n'
+      );
+      shouldCompileTo(
+        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{^}}\n{{/people}}\n',
+        { none: 'No people' },
+        'No people\n'
+      );
     });
     it('should handle nesting', function() {
-      shouldCompileTo('{{#data}}\n{{#if true}}\n{{.}}\n{{/if}}\n{{/data}}\nOK.', {data: [1, 3, 5]}, '1\n3\n5\nOK.');
+      shouldCompileTo(
+        '{{#data}}\n{{#if true}}\n{{.}}\n{{/if}}\n{{/data}}\nOK.',
+        { data: [1, 3, 5] },
+        '1\n3\n5\nOK.'
+      );
     });
   });
 
   describe('compat mode', function() {
     it('block with deep recursive lookup lookup', function() {
-      var string = '{{#outer}}Goodbye {{#inner}}cruel {{omg}}{{/inner}}{{/outer}}';
-      var hash = {omg: 'OMG!', outer: [{ inner: [{ text: 'goodbye' }] }] };
+      var string =
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg}}{{/inner}}{{/outer}}';
+      var hash = { omg: 'OMG!', outer: [{ inner: [{ text: 'goodbye' }] }] };
 
-      shouldCompileTo(string, [hash, undefined, undefined, true], 'Goodbye cruel OMG!');
+      shouldCompileTo(
+        string,
+        [hash, undefined, undefined, true],
+        'Goodbye cruel OMG!'
+      );
     });
     it('block with deep recursive pathed lookup', function() {
-      var string = '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
-      var hash = {omg: {yes: 'OMG!'}, outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }] };
+      var string =
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
+      var hash = {
+        omg: { yes: 'OMG!' },
+        outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
+      };
 
-      shouldCompileTo(string, [hash, undefined, undefined, true], 'Goodbye cruel OMG!');
+      shouldCompileTo(
+        string,
+        [hash, undefined, undefined, true],
+        'Goodbye cruel OMG!'
+      );
     });
     it('block with missed recursive lookup', function() {
-      var string = '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
-      var hash = {omg: {no: 'OMG!'}, outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }] };
+      var string =
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
+      var hash = {
+        omg: { no: 'OMG!' },
+        outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
+      };
 
-      shouldCompileTo(string, [hash, undefined, undefined, true], 'Goodbye cruel ');
+      shouldCompileTo(
+        string,
+        [hash, undefined, undefined, true],
+        'Goodbye cruel '
+      );
     });
   });
 
@@ -181,9 +319,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{*decorator}}{{/helper}}',
-          {hash: {}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{*decorator}}{{/helper}}',
+        { hash: {}, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
     it('should apply allow undefined return', function() {
       var helpers = {
@@ -197,9 +336,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{*decorator}}suc{{/helper}}',
-          {hash: {}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{*decorator}}suc{{/helper}}',
+        { hash: {}, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
 
     it('should apply block decorators', function() {
@@ -215,9 +355,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{#*decorator}}success{{/decorator}}{{/helper}}',
-          {hash: {}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{#*decorator}}success{{/decorator}}{{/helper}}',
+        { hash: {}, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
     it('should support nested decorators', function() {
       var helpers = {
@@ -235,9 +376,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{#*decorator}}{{#*nested}}suc{{/nested}}cess{{/decorator}}{{/helper}}',
-          {hash: {}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{#*decorator}}{{#*nested}}suc{{/nested}}cess{{/decorator}}{{/helper}}',
+        { hash: {}, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
 
     it('should apply multiple decorators', function() {
@@ -253,9 +395,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{#*decorator}}suc{{/decorator}}{{#*decorator}}cess{{/decorator}}{{/helper}}',
-          {hash: {}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{#*decorator}}suc{{/decorator}}{{#*decorator}}cess{{/decorator}}{{/helper}}',
+        { hash: {}, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
 
     it('should access parent variables', function() {
@@ -271,9 +414,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{#helper}}{{*decorator foo}}{{/helper}}',
-          {hash: {'foo': 'success'}, helpers: helpers, decorators: decorators},
-          'success');
+        '{{#helper}}{{*decorator foo}}{{/helper}}',
+        { hash: { foo: 'success' }, helpers: helpers, decorators: decorators },
+        'success'
+      );
     });
     it('should work with root program', function() {
       var run;
@@ -285,9 +429,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{*decorator "success"}}',
-          {hash: {'foo': 'success'}, decorators: decorators},
-          '');
+        '{{*decorator "success"}}',
+        { hash: { foo: 'success' }, decorators: decorators },
+        ''
+      );
       equals(run, true);
     });
     it('should fail when accessing variables from root', function() {
@@ -300,9 +445,10 @@ describe('blocks', function() {
         }
       };
       shouldCompileTo(
-          '{{*decorator foo}}',
-          {hash: {'foo': 'fail'}, decorators: decorators},
-          '');
+        '{{*decorator foo}}',
+        { hash: { foo: 'fail' }, decorators: decorators },
+        ''
+      );
       equals(run, true);
     });
 
@@ -335,12 +481,23 @@ describe('blocks', function() {
         equals(handlebarsEnv.decorators.bar, undefined);
       });
       it('fails with multiple and args', function() {
-        shouldThrow(function() {
-          handlebarsEnv.registerDecorator({
-            world: function() { return 'world!'; },
-            testHelper: function() { return 'found it!'; }
-          }, {});
-        }, Error, 'Arg not supported with multiple decorators');
+        shouldThrow(
+          function() {
+            handlebarsEnv.registerDecorator(
+              {
+                world: function() {
+                  return 'world!';
+                },
+                testHelper: function() {
+                  return 'found it!';
+                }
+              },
+              {}
+            );
+          },
+          Error,
+          'Arg not supported with multiple decorators'
+        );
       });
     });
   });
diff --git a/spec/builtins.js b/spec/builtins.js
index b29927f06..d6bc29868 100644
--- a/spec/builtins.js
+++ b/spec/builtins.js
@@ -2,64 +2,156 @@ describe('builtin helpers', function() {
   describe('#if', function() {
     it('if', function() {
       var string = '{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!';
-      shouldCompileTo(string, {goodbye: true, world: 'world'}, 'GOODBYE cruel world!',
-                      'if with boolean argument shows the contents when true');
-      shouldCompileTo(string, {goodbye: 'dummy', world: 'world'}, 'GOODBYE cruel world!',
-                      'if with string argument shows the contents');
-      shouldCompileTo(string, {goodbye: false, world: 'world'}, 'cruel world!',
-                      'if with boolean argument does not show the contents when false');
-      shouldCompileTo(string, {world: 'world'}, 'cruel world!',
-                      'if with undefined does not show the contents');
-      shouldCompileTo(string, {goodbye: ['foo'], world: 'world'}, 'GOODBYE cruel world!',
-                      'if with non-empty array shows the contents');
-      shouldCompileTo(string, {goodbye: [], world: 'world'}, 'cruel world!',
-                      'if with empty array does not show the contents');
-      shouldCompileTo(string, {goodbye: 0, world: 'world'}, 'cruel world!',
-                      'if with zero does not show the contents');
-      shouldCompileTo('{{#if goodbye includeZero=true}}GOODBYE {{/if}}cruel {{world}}!',
-                      {goodbye: 0, world: 'world'}, 'GOODBYE cruel world!',
-                      'if with zero does not show the contents');
+      shouldCompileTo(
+        string,
+        { goodbye: true, world: 'world' },
+        'GOODBYE cruel world!',
+        'if with boolean argument shows the contents when true'
+      );
+      shouldCompileTo(
+        string,
+        { goodbye: 'dummy', world: 'world' },
+        'GOODBYE cruel world!',
+        'if with string argument shows the contents'
+      );
+      shouldCompileTo(
+        string,
+        { goodbye: false, world: 'world' },
+        'cruel world!',
+        'if with boolean argument does not show the contents when false'
+      );
+      shouldCompileTo(
+        string,
+        { world: 'world' },
+        'cruel world!',
+        'if with undefined does not show the contents'
+      );
+      shouldCompileTo(
+        string,
+        { goodbye: ['foo'], world: 'world' },
+        'GOODBYE cruel world!',
+        'if with non-empty array shows the contents'
+      );
+      shouldCompileTo(
+        string,
+        { goodbye: [], world: 'world' },
+        'cruel world!',
+        'if with empty array does not show the contents'
+      );
+      shouldCompileTo(
+        string,
+        { goodbye: 0, world: 'world' },
+        'cruel world!',
+        'if with zero does not show the contents'
+      );
+      shouldCompileTo(
+        '{{#if goodbye includeZero=true}}GOODBYE {{/if}}cruel {{world}}!',
+        { goodbye: 0, world: 'world' },
+        'GOODBYE cruel world!',
+        'if with zero does not show the contents'
+      );
     });
 
     it('if with function argument', function() {
       var string = '{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!';
-      shouldCompileTo(string, {goodbye: function() {return true; }, world: 'world'}, 'GOODBYE cruel world!',
-                      'if with function shows the contents when function returns true');
-      shouldCompileTo(string, {goodbye: function() {return this.world; }, world: 'world'}, 'GOODBYE cruel world!',
-                      'if with function shows the contents when function returns string');
-      shouldCompileTo(string, {goodbye: function() {return false; }, world: 'world'}, 'cruel world!',
-                      'if with function does not show the contents when returns false');
-      shouldCompileTo(string, {goodbye: function() {return this.foo; }, world: 'world'}, 'cruel world!',
-                      'if with function does not show the contents when returns undefined');
+      shouldCompileTo(
+        string,
+        {
+          goodbye: function() {
+            return true;
+          },
+          world: 'world'
+        },
+        'GOODBYE cruel world!',
+        'if with function shows the contents when function returns true'
+      );
+      shouldCompileTo(
+        string,
+        {
+          goodbye: function() {
+            return this.world;
+          },
+          world: 'world'
+        },
+        'GOODBYE cruel world!',
+        'if with function shows the contents when function returns string'
+      );
+      shouldCompileTo(
+        string,
+        {
+          goodbye: function() {
+            return false;
+          },
+          world: 'world'
+        },
+        'cruel world!',
+        'if with function does not show the contents when returns false'
+      );
+      shouldCompileTo(
+        string,
+        {
+          goodbye: function() {
+            return this.foo;
+          },
+          world: 'world'
+        },
+        'cruel world!',
+        'if with function does not show the contents when returns undefined'
+      );
     });
 
     it('should not change the depth list', function() {
-      var string = '{{#with foo}}{{#if goodbye}}GOODBYE cruel {{../world}}!{{/if}}{{/with}}';
-      shouldCompileTo(string, {foo: {goodbye: true}, world: 'world'}, 'GOODBYE cruel world!');
+      var string =
+        '{{#with foo}}{{#if goodbye}}GOODBYE cruel {{../world}}!{{/if}}{{/with}}';
+      shouldCompileTo(
+        string,
+        { foo: { goodbye: true }, world: 'world' },
+        'GOODBYE cruel world!'
+      );
     });
   });
 
   describe('#with', function() {
     it('with', function() {
       var string = '{{#with person}}{{first}} {{last}}{{/with}}';
-      shouldCompileTo(string, {person: {first: 'Alan', last: 'Johnson'}}, 'Alan Johnson');
+      shouldCompileTo(
+        string,
+        { person: { first: 'Alan', last: 'Johnson' } },
+        'Alan Johnson'
+      );
     });
     it('with with function argument', function() {
       var string = '{{#with person}}{{first}} {{last}}{{/with}}';
-      shouldCompileTo(string, {person: function() { return {first: 'Alan', last: 'Johnson'}; }}, 'Alan Johnson');
+      shouldCompileTo(
+        string,
+        {
+          person: function() {
+            return { first: 'Alan', last: 'Johnson' };
+          }
+        },
+        'Alan Johnson'
+      );
     });
     it('with with else', function() {
-      var string = '{{#with person}}Person is present{{else}}Person is not present{{/with}}';
+      var string =
+        '{{#with person}}Person is present{{else}}Person is not present{{/with}}';
       shouldCompileTo(string, {}, 'Person is not present');
     });
     it('with provides block parameter', function() {
       var string = '{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}';
-      shouldCompileTo(string, {person: {first: 'Alan', last: 'Johnson'}}, 'Alan Johnson');
+      shouldCompileTo(
+        string,
+        { person: { first: 'Alan', last: 'Johnson' } },
+        'Alan Johnson'
+      );
     });
     it('works when data is disabled', function() {
-      var template = CompilerContext.compile('{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}', {data: false});
+      var template = CompilerContext.compile(
+        '{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}',
+        { data: false }
+      );
 
-      var result = template({person: {first: 'Alan', last: 'Johnson'}});
+      var result = template({ person: { first: 'Alan', last: 'Johnson' } });
       equals(result, 'Alan Johnson');
     });
   });
@@ -73,92 +165,179 @@ describe('builtin helpers', function() {
 
     it('each', function() {
       var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
-      shouldCompileTo(string, hash, 'goodbye! Goodbye! GOODBYE! cruel world!',
-                      'each with array argument iterates over the contents when not empty');
-      shouldCompileTo(string, {goodbyes: [], world: 'world'}, 'cruel world!',
-                      'each with array argument ignores the contents when empty');
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
+      shouldCompileTo(
+        string,
+        hash,
+        'goodbye! Goodbye! GOODBYE! cruel world!',
+        'each with array argument iterates over the contents when not empty'
+      );
+      shouldCompileTo(
+        string,
+        { goodbyes: [], world: 'world' },
+        'cruel world!',
+        'each with array argument ignores the contents when empty'
+      );
     });
 
     it('each without data', function() {
       var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
-      shouldCompileTo(string, [hash,,,, false], 'goodbye! Goodbye! GOODBYE! cruel world!');
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
+      shouldCompileTo(
+        string,
+        [hash, , , , false],
+        'goodbye! Goodbye! GOODBYE! cruel world!'
+      );
 
-      hash = {goodbyes: 'cruel', world: 'world'};
-      shouldCompileTo('{{#each .}}{{.}}{{/each}}', [hash,,,, false], 'cruelworld');
+      hash = { goodbyes: 'cruel', world: 'world' };
+      shouldCompileTo(
+        '{{#each .}}{{.}}{{/each}}',
+        [hash, , , , false],
+        'cruelworld'
+      );
     });
 
     it('each without context', function() {
       var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      shouldCompileTo(string, [,,,, ], 'cruel !');
+      shouldCompileTo(string, [, , , ,], 'cruel !');
     });
 
     it('each with an object and @key', function() {
-      var string = '{{#each goodbyes}}{{@key}}. {{text}}! {{/each}}cruel {{world}}!';
+      var string =
+        '{{#each goodbyes}}{{@key}}. {{text}}! {{/each}}cruel {{world}}!';
 
       function Clazz() {
-        this['<b>#1</b>'] = {text: 'goodbye'};
-        this[2] = {text: 'GOODBYE'};
+        this['<b>#1</b>'] = { text: 'goodbye' };
+        this[2] = { text: 'GOODBYE' };
       }
       Clazz.prototype.foo = 'fail';
-      var hash = {goodbyes: new Clazz(), world: 'world'};
+      var hash = { goodbyes: new Clazz(), world: 'world' };
 
       // Object property iteration order is undefined according to ECMA spec,
       // so we need to check both possible orders
       // @see http://stackoverflow.com/questions/280713/elements-order-in-a-for-in-loop
       var actual = compileWithPartials(string, hash);
-      var expected1 = '&lt;b&gt;#1&lt;/b&gt;. goodbye! 2. GOODBYE! cruel world!';
-      var expected2 = '2. GOODBYE! &lt;b&gt;#1&lt;/b&gt;. goodbye! cruel world!';
+      var expected1 =
+        '&lt;b&gt;#1&lt;/b&gt;. goodbye! 2. GOODBYE! cruel world!';
+      var expected2 =
+        '2. GOODBYE! &lt;b&gt;#1&lt;/b&gt;. goodbye! cruel world!';
 
-      equals(actual === expected1 || actual === expected2, true, 'each with object argument iterates over the contents when not empty');
-      shouldCompileTo(string, {goodbyes: {}, world: 'world'}, 'cruel world!');
+      equals(
+        actual === expected1 || actual === expected2,
+        true,
+        'each with object argument iterates over the contents when not empty'
+      );
+      shouldCompileTo(string, { goodbyes: {}, world: 'world' }, 'cruel world!');
     });
 
     it('each with @index', function() {
-      var string = '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!', 'The @index variable is used');
+      equal(
+        result,
+        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
+        'The @index variable is used'
+      );
     });
 
     it('each with nested @index', function() {
-      var string = '{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!', 'The @index variable is used');
+      equal(
+        result,
+        '0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!',
+        'The @index variable is used'
+      );
     });
 
     it('each with block params', function() {
-      var string = '{{#each goodbyes as |value index|}}{{index}}. {{value.text}}! {{#each ../goodbyes as |childValue childIndex|}} {{index}} {{childIndex}}{{/each}} After {{index}} {{/each}}{{index}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}], world: 'world'};
+      var string =
+        '{{#each goodbyes as |value index|}}{{index}}. {{value.text}}! {{#each ../goodbyes as |childValue childIndex|}} {{index}} {{childIndex}}{{/each}} After {{index}} {{/each}}{{index}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '0. goodbye!  0 0 0 1 After 0 1. Goodbye!  1 0 1 1 After 1 cruel world!');
+      equal(
+        result,
+        '0. goodbye!  0 0 0 1 After 0 1. Goodbye!  1 0 1 1 After 1 cruel world!'
+      );
     });
 
     it('each object with @index', function() {
-      var string = '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: {'a': {text: 'goodbye'}, b: {text: 'Goodbye'}, c: {text: 'GOODBYE'}}, world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: {
+          a: { text: 'goodbye' },
+          b: { text: 'Goodbye' },
+          c: { text: 'GOODBYE' }
+        },
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!', 'The @index variable is used');
+      equal(
+        result,
+        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
+        'The @index variable is used'
+      );
     });
 
-
     it('each with @first', function() {
-      var string = '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
@@ -167,18 +346,34 @@ describe('builtin helpers', function() {
     });
 
     it('each with nested @first', function() {
-      var string = '{{#each goodbyes}}({{#if @first}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @first}}{{text}}!{{/if}}{{/each}}{{#if @first}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}({{#if @first}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @first}}{{text}}!{{/if}}{{/each}}{{#if @first}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '(goodbye! goodbye! goodbye!) (goodbye!) (goodbye!) cruel world!', 'The @first variable is used');
+      equal(
+        result,
+        '(goodbye! goodbye! goodbye!) (goodbye!) (goodbye!) cruel world!',
+        'The @first variable is used'
+      );
     });
 
     it('each object with @first', function() {
-      var string = '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {goodbyes: {'foo': {text: 'goodbye'}, bar: {text: 'Goodbye'}}, world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
@@ -187,8 +382,16 @@ describe('builtin helpers', function() {
     });
 
     it('each with @last', function() {
-      var string = '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
@@ -197,8 +400,12 @@ describe('builtin helpers', function() {
     });
 
     it('each object with @last', function() {
-      var string = '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {goodbyes: {'foo': {text: 'goodbye'}, bar: {text: 'Goodbye'}}, world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
@@ -207,37 +414,78 @@ describe('builtin helpers', function() {
     });
 
     it('each with nested @last', function() {
-      var string = '{{#each goodbyes}}({{#if @last}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @last}}{{text}}!{{/if}}{{/each}}{{#if @last}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}], world: 'world'};
+      var string =
+        '{{#each goodbyes}}({{#if @last}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @last}}{{text}}!{{/if}}{{/each}}{{#if @last}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '(GOODBYE!) (GOODBYE!) (GOODBYE! GOODBYE! GOODBYE!) cruel world!', 'The @last variable is used');
+      equal(
+        result,
+        '(GOODBYE!) (GOODBYE!) (GOODBYE! GOODBYE! GOODBYE!) cruel world!',
+        'The @last variable is used'
+      );
     });
 
     it('each with function argument', function() {
       var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: function() { return [{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}]; }, world: 'world'};
-      shouldCompileTo(string, hash, 'goodbye! Goodbye! GOODBYE! cruel world!',
-                'each with array function argument iterates over the contents when not empty');
-      shouldCompileTo(string, {goodbyes: [], world: 'world'}, 'cruel world!',
-                'each with array function argument ignores the contents when empty');
+      var hash = {
+        goodbyes: function() {
+          return [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ];
+        },
+        world: 'world'
+      };
+      shouldCompileTo(
+        string,
+        hash,
+        'goodbye! Goodbye! GOODBYE! cruel world!',
+        'each with array function argument iterates over the contents when not empty'
+      );
+      shouldCompileTo(
+        string,
+        { goodbyes: [], world: 'world' },
+        'cruel world!',
+        'each with array function argument ignores the contents when empty'
+      );
     });
 
     it('each object when last key is an empty string', function() {
-      var string = '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {goodbyes: {'a': {text: 'goodbye'}, b: {text: 'Goodbye'}, '': {text: 'GOODBYE'}}, world: 'world'};
+      var string =
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
+      var hash = {
+        goodbyes: {
+          a: { text: 'goodbye' },
+          b: { text: 'Goodbye' },
+          '': { text: 'GOODBYE' }
+        },
+        world: 'world'
+      };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
 
-      equal(result, '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!', 'Empty string key is not skipped');
+      equal(
+        result,
+        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
+        'Empty string key is not skipped'
+      );
     });
 
     it('data passed to helpers', function() {
       var string = '{{#each letters}}{{this}}{{detectDataInsideEach}}{{/each}}';
-      var hash = {letters: ['a', 'b', 'c']};
+      var hash = { letters: ['a', 'b', 'c'] };
 
       var template = CompilerContext.compile(string);
       var result = template(hash, {
@@ -249,10 +497,16 @@ describe('builtin helpers', function() {
     });
 
     it('each on implicit context', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{#each}}{{text}}! {{/each}}cruel world!');
-        template({});
-      }, handlebarsEnv.Exception, 'Must pass iterator to #each');
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile(
+            '{{#each}}{{text}}! {{/each}}cruel world!'
+          );
+          template({});
+        },
+        handlebarsEnv.Exception,
+        'Must pass iterator to #each'
+      );
     });
 
     if (global.Symbol && global.Symbol.iterator) {
@@ -276,13 +530,25 @@ describe('builtin helpers', function() {
           return new Iterator(this.arr);
         };
         var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-        var goodbyes = new Iterable([{text: 'goodbye'}, {text: 'Goodbye'}, {text: 'GOODBYE'}]);
+        var goodbyes = new Iterable([
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ]);
         var goodbyesEmpty = new Iterable([]);
-        var hash = {goodbyes: goodbyes, world: 'world'};
-        shouldCompileTo(string, hash, 'goodbye! Goodbye! GOODBYE! cruel world!',
-          'each with array argument iterates over the contents when not empty');
-        shouldCompileTo(string, {goodbyes: goodbyesEmpty, world: 'world'}, 'cruel world!',
-          'each with array argument ignores the contents when empty');
+        var hash = { goodbyes: goodbyes, world: 'world' };
+        shouldCompileTo(
+          string,
+          hash,
+          'goodbye! Goodbye! GOODBYE! cruel world!',
+          'each with array argument iterates over the contents when not empty'
+        );
+        shouldCompileTo(
+          string,
+          { goodbyes: goodbyesEmpty, world: 'world' },
+          'cruel world!',
+          'each with array argument ignores the contents when empty'
+        );
       });
     }
   });
@@ -293,9 +559,7 @@ describe('builtin helpers', function() {
       return;
     }
 
-    var $log,
-        $info,
-        $error;
+    var $log, $info, $error;
     beforeEach(function() {
       $log = console.log;
       $info = console.info;
@@ -331,7 +595,7 @@ describe('builtin helpers', function() {
         logArg = arg;
       };
 
-      shouldCompileTo(string, [hash,,,, {level: '03'}], '');
+      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
       equals('03', levelArg);
       equals('whee', logArg);
     });
@@ -367,13 +631,13 @@ describe('builtin helpers', function() {
         console.error = $error;
       };
 
-      shouldCompileTo(string, [hash,,,, {level: '03'}], '');
+      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
       equals(true, called);
     });
     it('should handle missing logger', function() {
       var string = '{{log blah}}';
       var hash = { blah: 'whee' },
-          called = false;
+        called = false;
 
       console.error = undefined;
       console.log = function(log) {
@@ -382,7 +646,7 @@ describe('builtin helpers', function() {
         console.log = $log;
       };
 
-      shouldCompileTo(string, [hash,,,, {level: '03'}], '');
+      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
       equals(true, called);
     });
 
@@ -396,12 +660,12 @@ describe('builtin helpers', function() {
         called = true;
       };
 
-      shouldCompileTo(string, [hash,,,, {level: 'error'}], '');
+      shouldCompileTo(string, [hash, , , , { level: 'error' }], '');
       equals(true, called);
 
       called = false;
 
-      shouldCompileTo(string, [hash,,,, {level: 'ERROR'}], '');
+      shouldCompileTo(string, [hash, , , , { level: 'ERROR' }], '');
       equals(true, called);
     });
     it('should handle hash log levels', function() {
@@ -449,11 +713,10 @@ describe('builtin helpers', function() {
     /* eslint-enable no-console */
   });
 
-
   describe('#lookup', function() {
     it('should lookup arbitrary content', function() {
       var string = '{{#each goodbyes}}{{lookup ../data .}}{{/each}}',
-          hash = {goodbyes: [0, 1], data: ['foo', 'bar']};
+        hash = { goodbyes: [0, 1], data: ['foo', 'bar'] };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
@@ -462,7 +725,7 @@ describe('builtin helpers', function() {
     });
     it('should not fail on undefined value', function() {
       var string = '{{#each goodbyes}}{{lookup ../bar .}}{{/each}}',
-          hash = {goodbyes: [0, 1], data: ['foo', 'bar']};
+        hash = { goodbyes: [0, 1], data: ['foo', 'bar'] };
 
       var template = CompilerContext.compile(string);
       var result = template(hash);
diff --git a/spec/compiler.js b/spec/compiler.js
index 3d37b5940..fe394b720 100644
--- a/spec/compiler.js
+++ b/spec/compiler.js
@@ -13,37 +13,84 @@ describe('compiler', function() {
       equal(compile('foo').equals(compile('foo')), true);
       equal(compile('{{foo}}').equals(compile('{{foo}}')), true);
       equal(compile('{{foo.bar}}').equals(compile('{{foo.bar}}')), true);
-      equal(compile('{{foo.bar baz "foo" true false bat=1}}').equals(compile('{{foo.bar baz "foo" true false bat=1}}')), true);
-      equal(compile('{{foo.bar (baz bat=1)}}').equals(compile('{{foo.bar (baz bat=1)}}')), true);
-      equal(compile('{{#foo}} {{/foo}}').equals(compile('{{#foo}} {{/foo}}')), true);
+      equal(
+        compile('{{foo.bar baz "foo" true false bat=1}}').equals(
+          compile('{{foo.bar baz "foo" true false bat=1}}')
+        ),
+        true
+      );
+      equal(
+        compile('{{foo.bar (baz bat=1)}}').equals(
+          compile('{{foo.bar (baz bat=1)}}')
+        ),
+        true
+      );
+      equal(
+        compile('{{#foo}} {{/foo}}').equals(compile('{{#foo}} {{/foo}}')),
+        true
+      );
     });
     it('should treat as not equal', function() {
       equal(compile('foo').equals(compile('bar')), false);
       equal(compile('{{foo}}').equals(compile('{{bar}}')), false);
       equal(compile('{{foo.bar}}').equals(compile('{{bar.bar}}')), false);
-      equal(compile('{{foo.bar baz bat=1}}').equals(compile('{{foo.bar bar bat=1}}')), false);
-      equal(compile('{{foo.bar (baz bat=1)}}').equals(compile('{{foo.bar (bar bat=1)}}')), false);
-      equal(compile('{{#foo}} {{/foo}}').equals(compile('{{#bar}} {{/bar}}')), false);
-      equal(compile('{{#foo}} {{/foo}}').equals(compile('{{#foo}} {{foo}}{{/foo}}')), false);
+      equal(
+        compile('{{foo.bar baz bat=1}}').equals(
+          compile('{{foo.bar bar bat=1}}')
+        ),
+        false
+      );
+      equal(
+        compile('{{foo.bar (baz bat=1)}}').equals(
+          compile('{{foo.bar (bar bat=1)}}')
+        ),
+        false
+      );
+      equal(
+        compile('{{#foo}} {{/foo}}').equals(compile('{{#bar}} {{/bar}}')),
+        false
+      );
+      equal(
+        compile('{{#foo}} {{/foo}}').equals(
+          compile('{{#foo}} {{foo}}{{/foo}}')
+        ),
+        false
+      );
     });
   });
 
   describe('#compile', function() {
     it('should fail with invalid input', function() {
-      shouldThrow(function() {
-        Handlebars.compile(null);
-      }, Error, 'You must pass a string or Handlebars AST to Handlebars.compile. You passed null');
-      shouldThrow(function() {
-        Handlebars.compile({});
-      }, Error, 'You must pass a string or Handlebars AST to Handlebars.compile. You passed [object Object]');
+      shouldThrow(
+        function() {
+          Handlebars.compile(null);
+        },
+        Error,
+        'You must pass a string or Handlebars AST to Handlebars.compile. You passed null'
+      );
+      shouldThrow(
+        function() {
+          Handlebars.compile({});
+        },
+        Error,
+        'You must pass a string or Handlebars AST to Handlebars.compile. You passed [object Object]'
+      );
     });
 
     it('should include the location in the error (row and column)', function() {
       try {
         Handlebars.compile(' \n  {{#if}}\n{{/def}}')();
-        equal(true, false, 'Statement must throw exception. This line should not be executed.');
+        equal(
+          true,
+          false,
+          'Statement must throw exception. This line should not be executed.'
+        );
       } catch (err) {
-        equal(err.message, 'if doesn\'t match def - 2:5', 'Checking error message');
+        equal(
+          err.message,
+          "if doesn't match def - 2:5",
+          'Checking error message'
+        );
         if (Object.getOwnPropertyDescriptor(err, 'column').writable) {
           // In Safari 8, the column-property is read-only. This means that even if it is set with defineProperty,
           // its value won't change (https://github.com/jquery/esprima/issues/1290#issuecomment-132455482)
@@ -57,17 +104,28 @@ describe('compiler', function() {
     it('should include the location as enumerable property', function() {
       try {
         Handlebars.compile(' \n  {{#if}}\n{{/def}}')();
-        equal(true, false, 'Statement must throw exception. This line should not be executed.');
+        equal(
+          true,
+          false,
+          'Statement must throw exception. This line should not be executed.'
+        );
       } catch (err) {
-        equal(Object.prototype.propertyIsEnumerable.call(err, 'column'), true, 'Checking error column');
+        equal(
+          Object.prototype.propertyIsEnumerable.call(err, 'column'),
+          true,
+          'Checking error column'
+        );
       }
     });
 
     it('can utilize AST instance', function() {
-      equal(Handlebars.compile({
-        type: 'Program',
-        body: [ {type: 'ContentStatement', value: 'Hello'}]
-      })(), 'Hello');
+      equal(
+        Handlebars.compile({
+          type: 'Program',
+          body: [{ type: 'ContentStatement', value: 'Hello' }]
+        })(),
+        'Hello'
+      );
     });
 
     it('can pass through an empty string', function() {
@@ -75,33 +133,52 @@ describe('compiler', function() {
     });
 
     it('should not modify the options.data property(GH-1327)', function() {
-      var options = {data: [{a: 'foo'}, {a: 'bar'}]};
+      var options = { data: [{ a: 'foo' }, { a: 'bar' }] };
       Handlebars.compile('{{#each data}}{{@index}}:{{a}} {{/each}}', options)();
-      equal(JSON.stringify(options, 0, 2), JSON.stringify({data: [{a: 'foo'}, {a: 'bar'}]}, 0, 2));
+      equal(
+        JSON.stringify(options, 0, 2),
+        JSON.stringify({ data: [{ a: 'foo' }, { a: 'bar' }] }, 0, 2)
+      );
     });
 
     it('should not modify the options.knownHelpers property(GH-1327)', function() {
-      var options = {knownHelpers: {}};
+      var options = { knownHelpers: {} };
       Handlebars.compile('{{#each data}}{{@index}}:{{a}} {{/each}}', options)();
-      equal(JSON.stringify(options, 0, 2), JSON.stringify({knownHelpers: {}}, 0, 2));
+      equal(
+        JSON.stringify(options, 0, 2),
+        JSON.stringify({ knownHelpers: {} }, 0, 2)
+      );
     });
   });
 
   describe('#precompile', function() {
     it('should fail with invalid input', function() {
-      shouldThrow(function() {
-        Handlebars.precompile(null);
-      }, Error, 'You must pass a string or Handlebars AST to Handlebars.precompile. You passed null');
-      shouldThrow(function() {
-        Handlebars.precompile({});
-      }, Error, 'You must pass a string or Handlebars AST to Handlebars.precompile. You passed [object Object]');
+      shouldThrow(
+        function() {
+          Handlebars.precompile(null);
+        },
+        Error,
+        'You must pass a string or Handlebars AST to Handlebars.precompile. You passed null'
+      );
+      shouldThrow(
+        function() {
+          Handlebars.precompile({});
+        },
+        Error,
+        'You must pass a string or Handlebars AST to Handlebars.precompile. You passed [object Object]'
+      );
     });
 
     it('can utilize AST instance', function() {
-      equal(/return "Hello"/.test(Handlebars.precompile({
-        type: 'Program',
-        body: [ {type: 'ContentStatement', value: 'Hello'}]
-      })), true);
+      equal(
+        /return "Hello"/.test(
+          Handlebars.precompile({
+            type: 'Program',
+            body: [{ type: 'ContentStatement', value: 'Hello' }]
+          })
+        ),
+        true
+      );
     });
 
     it('can pass through an empty string', function() {
diff --git a/spec/data.js b/spec/data.js
index 547a2664e..0defdc14a 100644
--- a/spec/data.js
+++ b/spec/data.js
@@ -1,6 +1,6 @@
 describe('data', function() {
   it('passing in data to a compiled function that expects data - works with helpers', function() {
-    var template = CompilerContext.compile('{{hello}}', {data: true});
+    var template = CompilerContext.compile('{{hello}}', { data: true });
 
     var helpers = {
       hello: function(options) {
@@ -8,7 +8,10 @@ describe('data', function() {
       }
     };
 
-    var result = template({noun: 'cat'}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { noun: 'cat' },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('happy cat', result, 'Data output by helper');
   });
 
@@ -19,7 +22,9 @@ describe('data', function() {
   });
 
   it('deep @foo triggers automatic top-level data', function() {
-    var template = CompilerContext.compile('{{#let world="world"}}{{#if foo}}{{#if foo}}Hello {{@world}}{{/if}}{{/if}}{{/let}}');
+    var template = CompilerContext.compile(
+      '{{#let world="world"}}{{#if foo}}{{#if foo}}Hello {{@world}}{{/if}}{{/if}}{{/let}}'
+    );
 
     var helpers = Handlebars.createFrame(handlebarsEnv.helpers);
 
@@ -47,7 +52,11 @@ describe('data', function() {
     };
 
     var result = template({}, { helpers: helpers, data: { world: 'world' } });
-    equals('Hello world', result, '@foo as a parameter retrieves template data');
+    equals(
+      'Hello world',
+      result,
+      '@foo as a parameter retrieves template data'
+    );
   });
 
   it('hash values can be looked up via @foo', function() {
@@ -59,7 +68,11 @@ describe('data', function() {
     };
 
     var result = template({}, { helpers: helpers, data: { world: 'world' } });
-    equals('Hello world', result, '@foo as a parameter retrieves template data');
+    equals(
+      'Hello world',
+      result,
+      '@foo as a parameter retrieves template data'
+    );
   });
 
   it('nested parameter data can be looked up via @foo.bar', function() {
@@ -70,8 +83,15 @@ describe('data', function() {
       }
     };
 
-    var result = template({}, { helpers: helpers, data: { world: {bar: 'world' } } });
-    equals('Hello world', result, '@foo as a parameter retrieves template data');
+    var result = template(
+      {},
+      { helpers: helpers, data: { world: { bar: 'world' } } }
+    );
+    equals(
+      'Hello world',
+      result,
+      '@foo as a parameter retrieves template data'
+    );
   });
 
   it('nested parameter data does not fail with @world.bar', function() {
@@ -82,8 +102,15 @@ describe('data', function() {
       }
     };
 
-    var result = template({}, { helpers: helpers, data: { foo: {bar: 'world' } } });
-    equals('Hello undefined', result, '@foo as a parameter retrieves template data');
+    var result = template(
+      {},
+      { helpers: helpers, data: { foo: { bar: 'world' } } }
+    );
+    equals(
+      'Hello undefined',
+      result,
+      '@foo as a parameter retrieves template data'
+    );
   });
 
   it('parameter data throws when using complex scope references', function() {
@@ -96,17 +123,38 @@ describe('data', function() {
 
   it('data can be functions', function() {
     var template = CompilerContext.compile('{{@hello}}');
-    var result = template({}, { data: { hello: function() { return 'hello'; } } });
+    var result = template(
+      {},
+      {
+        data: {
+          hello: function() {
+            return 'hello';
+          }
+        }
+      }
+    );
     equals('hello', result);
   });
   it('data can be functions with params', function() {
     var template = CompilerContext.compile('{{@hello "hello"}}');
-    var result = template({}, { data: { hello: function(arg) { return arg; } } });
+    var result = template(
+      {},
+      {
+        data: {
+          hello: function(arg) {
+            return arg;
+          }
+        }
+      }
+    );
     equals('hello', result);
   });
 
   it('data is inherited downstream', function() {
-    var template = CompilerContext.compile('{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}', { data: true });
+    var template = CompilerContext.compile(
+      '{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}',
+      { data: true }
+    );
     var helpers = {
       let: function(options) {
         var frame = Handlebars.createFrame(options.data);
@@ -115,19 +163,22 @@ describe('data', function() {
             frame[prop] = options.hash[prop];
           }
         }
-        return options.fn(this, {data: frame});
+        return options.fn(this, { data: frame });
       }
     };
 
-    var result = template({ bar: { baz: 'hello world' } }, { helpers: helpers, data: {} });
+    var result = template(
+      { bar: { baz: 'hello world' } },
+      { helpers: helpers, data: {} }
+    );
     equals('2hello world1', result, 'data variables are inherited downstream');
   });
 
   it('passing in data to a compiled function that expects data - works with helpers in partials', function() {
-    var template = CompilerContext.compile('{{>myPartial}}', {data: true});
+    var template = CompilerContext.compile('{{>myPartial}}', { data: true });
 
     var partials = {
-      myPartial: CompilerContext.compile('{{hello}}', {data: true})
+      myPartial: CompilerContext.compile('{{hello}}', { data: true })
     };
 
     var helpers = {
@@ -136,12 +187,15 @@ describe('data', function() {
       }
     };
 
-    var result = template({noun: 'cat'}, {helpers: helpers, partials: partials, data: {adjective: 'happy'}});
+    var result = template(
+      { noun: 'cat' },
+      { helpers: helpers, partials: partials, data: { adjective: 'happy' } }
+    );
     equals('happy cat', result, 'Data output by helper inside partial');
   });
 
   it('passing in data to a compiled function that expects data - works with helpers and parameters', function() {
-    var template = CompilerContext.compile('{{hello world}}', {data: true});
+    var template = CompilerContext.compile('{{hello world}}', { data: true });
 
     var helpers = {
       hello: function(noun, options) {
@@ -149,12 +203,17 @@ describe('data', function() {
       }
     };
 
-    var result = template({exclaim: true, world: 'world'}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { exclaim: true, world: 'world' },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('happy world!', result, 'Data output by helper');
   });
 
   it('passing in data to a compiled function that expects data - works with block helpers', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world}}{{/hello}}', {data: true});
+    var template = CompilerContext.compile('{{#hello}}{{world}}{{/hello}}', {
+      data: true
+    });
 
     var helpers = {
       hello: function(options) {
@@ -165,106 +224,140 @@ describe('data', function() {
       }
     };
 
-    var result = template({exclaim: true}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { exclaim: true },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('happy world!', result, 'Data output by helper');
   });
 
   it('passing in data to a compiled function that expects data - works with block helpers that use ..', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world ../zomg}}{{/hello}}', {data: true});
+    var template = CompilerContext.compile(
+      '{{#hello}}{{world ../zomg}}{{/hello}}',
+      { data: true }
+    );
 
     var helpers = {
       hello: function(options) {
-        return options.fn({exclaim: '?'});
+        return options.fn({ exclaim: '?' });
       },
       world: function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
       }
     };
 
-    var result = template({exclaim: true, zomg: 'world'}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { exclaim: true, zomg: 'world' },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('happy world?', result, 'Data output by helper');
   });
 
   it('passing in data to a compiled function that expects data - data is passed to with block helpers where children use ..', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world ../zomg}}{{/hello}}', {data: true});
+    var template = CompilerContext.compile(
+      '{{#hello}}{{world ../zomg}}{{/hello}}',
+      { data: true }
+    );
 
     var helpers = {
       hello: function(options) {
-        return options.data.accessData + ' ' + options.fn({exclaim: '?'});
+        return options.data.accessData + ' ' + options.fn({ exclaim: '?' });
       },
       world: function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
       }
     };
 
-    var result = template({exclaim: true, zomg: 'world'}, {helpers: helpers, data: {adjective: 'happy', accessData: '#win'}});
+    var result = template(
+      { exclaim: true, zomg: 'world' },
+      { helpers: helpers, data: { adjective: 'happy', accessData: '#win' } }
+    );
     equals('#win happy world?', result, 'Data output by helper');
   });
 
   it('you can override inherited data when invoking a helper', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world zomg}}{{/hello}}', {data: true});
+    var template = CompilerContext.compile(
+      '{{#hello}}{{world zomg}}{{/hello}}',
+      { data: true }
+    );
 
     var helpers = {
       hello: function(options) {
-        return options.fn({exclaim: '?', zomg: 'world'}, { data: {adjective: 'sad'} });
+        return options.fn(
+          { exclaim: '?', zomg: 'world' },
+          { data: { adjective: 'sad' } }
+        );
       },
       world: function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
       }
     };
 
-    var result = template({exclaim: true, zomg: 'planet'}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { exclaim: true, zomg: 'planet' },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('sad world?', result, 'Overriden data output by helper');
   });
 
-
   it('you can override inherited data when invoking a helper with depth', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world ../zomg}}{{/hello}}', {data: true});
+    var template = CompilerContext.compile(
+      '{{#hello}}{{world ../zomg}}{{/hello}}',
+      { data: true }
+    );
 
     var helpers = {
       hello: function(options) {
-        return options.fn({exclaim: '?'}, { data: {adjective: 'sad'} });
+        return options.fn({ exclaim: '?' }, { data: { adjective: 'sad' } });
       },
       world: function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
       }
     };
 
-    var result = template({exclaim: true, zomg: 'world'}, {helpers: helpers, data: {adjective: 'happy'}});
+    var result = template(
+      { exclaim: true, zomg: 'world' },
+      { helpers: helpers, data: { adjective: 'happy' } }
+    );
     equals('sad world?', result, 'Overriden data output by helper');
   });
 
   describe('@root', function() {
     it('the root context can be looked up via @root', function() {
       var template = CompilerContext.compile('{{@root.foo}}');
-      var result = template({foo: 'hello'}, { data: {} });
+      var result = template({ foo: 'hello' }, { data: {} });
       equals('hello', result);
 
-      result = template({foo: 'hello'}, {});
+      result = template({ foo: 'hello' }, {});
       equals('hello', result);
     });
     it('passed root values take priority', function() {
       var template = CompilerContext.compile('{{@root.foo}}');
-      var result = template({}, { data: {root: {foo: 'hello'} } });
+      var result = template({}, { data: { root: { foo: 'hello' } } });
       equals('hello', result);
     });
   });
 
   describe('nesting', function() {
     it('the root context can be looked up via @root', function() {
-      var template = CompilerContext.compile('{{#helper}}{{#helper}}{{@./depth}} {{@../depth}} {{@../../depth}}{{/helper}}{{/helper}}');
-      var result = template({foo: 'hello'}, {
-        helpers: {
-          helper: function(options) {
-            var frame = Handlebars.createFrame(options.data);
-            frame.depth = options.data.depth + 1;
-            return options.fn(this, {data: frame});
+      var template = CompilerContext.compile(
+        '{{#helper}}{{#helper}}{{@./depth}} {{@../depth}} {{@../../depth}}{{/helper}}{{/helper}}'
+      );
+      var result = template(
+        { foo: 'hello' },
+        {
+          helpers: {
+            helper: function(options) {
+              var frame = Handlebars.createFrame(options.data);
+              frame.depth = options.data.depth + 1;
+              return options.fn(this, { data: frame });
+            }
+          },
+          data: {
+            depth: 0
           }
-        },
-        data: {
-          depth: 0
         }
-      });
+      );
       equals('2 1 0', result);
     });
   });
diff --git a/spec/env/browser.js b/spec/env/browser.js
index d1dab0d5e..28541b776 100644
--- a/spec/env/browser.js
+++ b/spec/env/browser.js
@@ -1,12 +1,11 @@
 require('./common');
 
 var fs = require('fs'),
-    vm = require('vm');
+  vm = require('vm');
 
 var chai = require('chai');
 var dirtyChai = require('dirty-chai');
 
-
 chai.use(dirtyChai);
 global.expect = chai.expect;
 
@@ -18,7 +17,10 @@ var filename = 'dist/handlebars.js';
 if (global.minimizedTest) {
   filename = 'dist/handlebars.min.js';
 }
-var distHandlebars = fs.readFileSync(require.resolve('../../' + filename), 'utf-8');
+var distHandlebars = fs.readFileSync(
+  require.resolve('../../' + filename),
+  'utf-8'
+);
 vm.runInThisContext(distHandlebars, filename);
 
 global.CompilerContext = {
diff --git a/spec/env/common.js b/spec/env/common.js
index ac9421845..64451fee4 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -1,6 +1,6 @@
 var global = (function() {
   return this;
-}());
+})();
 
 var AssertError;
 if (Error.captureStackTrace) {
@@ -28,10 +28,19 @@ global.shouldCompileTo = function(string, hashOrArray, expected, message) {
 /**
  * @deprecated Use "expectTemplate(template)...toCompileTo(output)" instead
  */
-global.shouldCompileToWithPartials = function shouldCompileToWithPartials(string, hashOrArray, partials, expected, message) {
+global.shouldCompileToWithPartials = function shouldCompileToWithPartials(
+  string,
+  hashOrArray,
+  partials,
+  expected,
+  message
+) {
   var result = compileWithPartials(string, hashOrArray, partials);
   if (result !== expected) {
-    throw new AssertError("'" + result + "' should === '" + expected + "': " + message, shouldCompileToWithPartials);
+    throw new AssertError(
+      "'" + result + "' should === '" + expected + "': " + message,
+      shouldCompileToWithPartials
+    );
   }
 };
 
@@ -39,17 +48,18 @@ global.shouldCompileToWithPartials = function shouldCompileToWithPartials(string
  * @deprecated Use "expectTemplate(template)...toCompileTo(output)" instead
  */
 global.compileWithPartials = function(string, hashOrArray, partials) {
-  var template,
-      ary,
-      options;
+  var template, ary, options;
   if (hashOrArray && hashOrArray.hash) {
     ary = [hashOrArray.hash, hashOrArray];
     delete hashOrArray.hash;
   } else if (Object.prototype.toString.call(hashOrArray) === '[object Array]') {
     ary = [];
     ary.push(hashOrArray[0]); // input
-    ary.push({helpers: hashOrArray[1], partials: hashOrArray[2]});
-    options = typeof hashOrArray[3] === 'object' ? hashOrArray[3] : {compat: hashOrArray[3]};
+    ary.push({ helpers: hashOrArray[1], partials: hashOrArray[2] });
+    options =
+      typeof hashOrArray[3] === 'object'
+        ? hashOrArray[3]
+        : { compat: hashOrArray[3] };
     if (hashOrArray[4] != null) {
       options.data = !!hashOrArray[4];
       ary[1].data = hashOrArray[4];
@@ -58,18 +68,23 @@ global.compileWithPartials = function(string, hashOrArray, partials) {
     ary = [hashOrArray];
   }
 
-  template = CompilerContext[partials ? 'compileWithPartial' : 'compile'](string, options);
+  template = CompilerContext[partials ? 'compileWithPartial' : 'compile'](
+    string,
+    options
+  );
   return template.apply(this, ary);
 };
 
-
 /**
  * @deprecated Use chai's expect-style API instead (`expect(actualValue).to.equal(expectedValue)`)
  * @see https://www.chaijs.com/api/bdd/
  */
 global.equals = global.equal = function equals(a, b, msg) {
   if (a !== b) {
-    throw new AssertError("'" + a + "' should === '" + b + "'" + (msg ? ': ' + msg : ''), equals);
+    throw new AssertError(
+      "'" + a + "' should === '" + b + "'" + (msg ? ': ' + msg : ''),
+      equals
+    );
   }
 };
 
@@ -86,8 +101,19 @@ global.shouldThrow = function(callback, type, msg) {
     if (type && !(caught instanceof type)) {
       throw new AssertError('Type failure: ' + caught);
     }
-    if (msg && !(msg.test ? msg.test(caught.message) : msg === caught.message)) {
-      throw new AssertError('Throw mismatch: Expected ' + caught.message + ' to match ' + msg + '\n\n' + caught.stack, shouldThrow);
+    if (
+      msg &&
+      !(msg.test ? msg.test(caught.message) : msg === caught.message)
+    ) {
+      throw new AssertError(
+        'Throw mismatch: Expected ' +
+          caught.message +
+          ' to match ' +
+          msg +
+          '\n\n' +
+          caught.stack,
+        shouldThrow
+      );
     }
   }
   if (failed) {
@@ -95,18 +121,17 @@ global.shouldThrow = function(callback, type, msg) {
   }
 };
 
-
 global.expectTemplate = function(templateAsString) {
   return new HandlebarsTestBench(templateAsString);
 };
 
-
 function HandlebarsTestBench(templateAsString) {
   this.templateAsString = templateAsString;
   this.helpers = {};
   this.partials = {};
   this.input = {};
-  this.message = 'Template' + templateAsString + ' does not evaluate to expected output';
+  this.message =
+    'Template' + templateAsString + ' does not evaluate to expected output';
   this.compileOptions = {};
   this.runtimeOptions = {};
 }
@@ -146,7 +171,11 @@ HandlebarsTestBench.prototype.toCompileTo = function(expectedOutputAsString) {
 };
 
 // see chai "to.throw" (https://www.chaijs.com/api/bdd/#method_throw)
-HandlebarsTestBench.prototype.toThrow = function(errorLike, errMsgMatcher, msg) {
+HandlebarsTestBench.prototype.toThrow = function(
+  errorLike,
+  errMsgMatcher,
+  msg
+) {
   var self = this;
   expect(function() {
     self._compileAndExeute();
@@ -154,7 +183,8 @@ HandlebarsTestBench.prototype.toThrow = function(errorLike, errMsgMatcher, msg)
 };
 
 HandlebarsTestBench.prototype._compileAndExeute = function() {
-  var compile = Object.keys(this.partials).length > 0
+  var compile =
+    Object.keys(this.partials).length > 0
       ? CompilerContext.compileWithPartial
       : CompilerContext.compile;
 
diff --git a/spec/env/node.js b/spec/env/node.js
index 0695468ba..1d1cd09c8 100644
--- a/spec/env/node.js
+++ b/spec/env/node.js
@@ -3,7 +3,6 @@ require('./common');
 var chai = require('chai');
 var dirtyChai = require('dirty-chai');
 
-
 chai.use(dirtyChai);
 global.expect = chai.expect;
 
diff --git a/spec/env/runner.js b/spec/env/runner.js
index a069c2d71..39c522cad 100644
--- a/spec/env/runner.js
+++ b/spec/env/runner.js
@@ -1,11 +1,11 @@
 /* eslint-disable no-console */
 var fs = require('fs'),
-    Mocha = require('mocha'),
-    path = require('path');
+  Mocha = require('mocha'),
+  path = require('path');
 
 var errors = 0,
-    testDir = path.dirname(__dirname),
-    grep = process.argv[2];
+  testDir = path.dirname(__dirname),
+  grep = process.argv[2];
 
 // Lazy hack, but whatever
 if (grep === '--min') {
@@ -13,9 +13,14 @@ if (grep === '--min') {
   grep = undefined;
 }
 
-var files = fs.readdirSync(testDir)
-      .filter(function(name) { return (/.*\.js$/).test(name); })
-      .map(function(name) { return testDir + path.sep + name; });
+var files = fs
+  .readdirSync(testDir)
+  .filter(function(name) {
+    return /.*\.js$/.test(name);
+  })
+  .map(function(name) {
+    return testDir + path.sep + name;
+  });
 
 if (global.minimizedTest) {
   run('./runtime', function() {
@@ -37,7 +42,6 @@ if (global.minimizedTest) {
   });
 }
 
-
 function run(env, callback) {
   var mocha = new Mocha();
   mocha.ui('bdd');
diff --git a/spec/env/runtime.js b/spec/env/runtime.js
index 4f6d28534..99b5bf785 100644
--- a/spec/env/runtime.js
+++ b/spec/env/runtime.js
@@ -1,12 +1,11 @@
 require('./common');
 
 var fs = require('fs'),
-    vm = require('vm');
+  vm = require('vm');
 
 var chai = require('chai');
 var dirtyChai = require('dirty-chai');
 
-
 chai.use(dirtyChai);
 global.expect = chai.expect;
 
@@ -18,7 +17,10 @@ var filename = 'dist/handlebars.runtime.js';
 if (global.minimizedTest) {
   filename = 'dist/handlebars.runtime.min.js';
 }
-vm.runInThisContext(fs.readFileSync(__dirname + '/../../' + filename), filename);
+vm.runInThisContext(
+  fs.readFileSync(__dirname + '/../../' + filename),
+  filename
+);
 
 var parse = require('../../dist/cjs/handlebars/compiler/base').parse;
 var compiler = require('../../dist/cjs/handlebars/compiler/compiler');
@@ -30,7 +32,11 @@ global.CompilerContext = {
   compile: function(template, options) {
     // Hack the compiler on to the environment for these specific tests
     handlebarsEnv.precompile = function(precompileTemplate, precompileOptions) {
-      return compiler.precompile(precompileTemplate, precompileOptions, handlebarsEnv);
+      return compiler.precompile(
+        precompileTemplate,
+        precompileOptions,
+        handlebarsEnv
+      );
     };
     handlebarsEnv.parse = parse;
     handlebarsEnv.Compiler = compiler.Compiler;
diff --git a/spec/helpers.js b/spec/helpers.js
index 634d7027e..9d4bc202e 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -1,35 +1,57 @@
 describe('helpers', function() {
   it('helper with complex lookup$', function() {
     var string = '{{#goodbyes}}{{{link ../prefix}}}{{/goodbyes}}';
-    var hash = {prefix: '/root', goodbyes: [{text: 'Goodbye', url: 'goodbye'}]};
-    var helpers = {link: function(prefix) {
-      return '<a href="' + prefix + '/' + this.url + '">' + this.text + '</a>';
-    }};
-    shouldCompileTo(string, [hash, helpers], '<a href="/root/goodbye">Goodbye</a>');
+    var hash = {
+      prefix: '/root',
+      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+    };
+    var helpers = {
+      link: function(prefix) {
+        return (
+          '<a href="' + prefix + '/' + this.url + '">' + this.text + '</a>'
+        );
+      }
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      '<a href="/root/goodbye">Goodbye</a>'
+    );
   });
 
   it('helper for raw block gets raw content', function() {
     var string = '{{{{raw}}}} {{test}} {{{{/raw}}}}';
     var hash = { test: 'hello' };
-    var helpers = { raw: function(options) {
+    var helpers = {
+      raw: function(options) {
         return options.fn();
-    } };
-    shouldCompileTo(string, [hash, helpers], ' {{test}} ',
-                    'raw block helper gets raw content');
+      }
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      ' {{test}} ',
+      'raw block helper gets raw content'
+    );
   });
 
   it('helper for raw block gets parameters', function() {
     var string = '{{{{raw 1 2 3}}}} {{test}} {{{{/raw}}}}';
     var hash = { test: 'hello' };
-    var helpers = { raw: function(a, b, c, options) {
+    var helpers = {
+      raw: function(a, b, c, options) {
         return options.fn() + a + b + c;
-    } };
-    shouldCompileTo(string, [hash, helpers], ' {{test}} 123',
-                    'raw block helper gets raw content');
+      }
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      ' {{test}} 123',
+      'raw block helper gets raw content'
+    );
   });
 
   describe('raw block parsing (with identity helper-function)', function() {
-
     function runWithIdentityHelper(template, expected) {
       var helpers = {
         identity: function(options) {
@@ -40,7 +62,10 @@ describe('helpers', function() {
     }
 
     it('helper for nested raw block gets raw content', function() {
-      runWithIdentityHelper('{{{{identity}}}} {{{{b}}}} {{{{/b}}}} {{{{/identity}}}}', ' {{{{b}}}} {{{{/b}}}} ');
+      runWithIdentityHelper(
+        '{{{{identity}}}} {{{{b}}}} {{{{/b}}}} {{{{/identity}}}}',
+        ' {{{{b}}}} {{{{/b}}}} '
+      );
     });
 
     it('helper for nested raw block works with empty content', function() {
@@ -52,11 +77,17 @@ describe('helpers', function() {
       // The test is deactivated, because in 3.x this template cases an exception and it also does not work in 4.4.3
       // If anyone can make this template work without breaking everything else, then go for it,
       // but for now, this is just a known bug, that will be documented.
-      runWithIdentityHelper('{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}', ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} ');
+      runWithIdentityHelper(
+        '{{{{identity}}}} {{{{a}}}} {{{{ {{{{/ }}}} }}}} {{{{/identity}}}}',
+        ' {{{{a}}}} {{{{ {{{{/ }}}} }}}} '
+      );
     });
 
     it('helper for nested raw block closes after first matching close', function() {
-      runWithIdentityHelper('{{{{identity}}}}abc{{{{/identity}}}} {{{{identity}}}}abc{{{{/identity}}}}', 'abc abc');
+      runWithIdentityHelper(
+        '{{{{identity}}}}abc{{{{/identity}}}} {{{{identity}}}}abc{{{{/identity}}}}',
+        'abc abc'
+      );
     });
 
     it('helper for nested raw block throw exception when with missing closing braces', function() {
@@ -69,58 +100,121 @@ describe('helpers', function() {
 
   it('helper block with identical context', function() {
     var string = '{{#goodbyes}}{{name}}{{/goodbyes}}';
-    var hash = {name: 'Alan'};
-    var helpers = {goodbyes: function(options) {
-      var out = '';
-      var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
-      for (var i = 0, j = byes.length; i < j; i++) {
-        out += byes[i] + ' ' + options.fn(this) + '! ';
+    var hash = { name: 'Alan' };
+    var helpers = {
+      goodbyes: function(options) {
+        var out = '';
+        var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
+        for (var i = 0, j = byes.length; i < j; i++) {
+          out += byes[i] + ' ' + options.fn(this) + '! ';
+        }
+        return out;
       }
-      return out;
-    }};
-    shouldCompileTo(string, [hash, helpers], 'Goodbye Alan! goodbye Alan! GOODBYE Alan! ');
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      'Goodbye Alan! goodbye Alan! GOODBYE Alan! '
+    );
   });
   it('helper block with complex lookup expression', function() {
     var string = '{{#goodbyes}}{{../name}}{{/goodbyes}}';
-    var hash = {name: 'Alan'};
-    var helpers = {goodbyes: function(options) {
-      var out = '';
-      var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
-      for (var i = 0, j = byes.length; i < j; i++) {
-        out += byes[i] + ' ' + options.fn({}) + '! ';
+    var hash = { name: 'Alan' };
+    var helpers = {
+      goodbyes: function(options) {
+        var out = '';
+        var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
+        for (var i = 0, j = byes.length; i < j; i++) {
+          out += byes[i] + ' ' + options.fn({}) + '! ';
+        }
+        return out;
       }
-      return out;
-    }};
-    shouldCompileTo(string, [hash, helpers], 'Goodbye Alan! goodbye Alan! GOODBYE Alan! ');
+    };
+    shouldCompileTo(
+      string,
+      [hash, helpers],
+      'Goodbye Alan! goodbye Alan! GOODBYE Alan! '
+    );
   });
 
   it('helper with complex lookup and nested template', function() {
-    var string = '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
-    var hash = {prefix: '/root', goodbyes: [{text: 'Goodbye', url: 'goodbye'}]};
-    var helpers = {link: function(prefix, options) {
-        return '<a href="' + prefix + '/' + this.url + '">' + options.fn(this) + '</a>';
-    }};
-    shouldCompileToWithPartials(string, [hash, helpers], false, '<a href="/root/goodbye">Goodbye</a>');
+    var string =
+      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
+    var hash = {
+      prefix: '/root',
+      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+    };
+    var helpers = {
+      link: function(prefix, options) {
+        return (
+          '<a href="' +
+          prefix +
+          '/' +
+          this.url +
+          '">' +
+          options.fn(this) +
+          '</a>'
+        );
+      }
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, helpers],
+      false,
+      '<a href="/root/goodbye">Goodbye</a>'
+    );
   });
 
   it('helper with complex lookup and nested template in VM+Compiler', function() {
-    var string = '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
-    var hash = {prefix: '/root', goodbyes: [{text: 'Goodbye', url: 'goodbye'}]};
-    var helpers = {link: function(prefix, options) {
-        return '<a href="' + prefix + '/' + this.url + '">' + options.fn(this) + '</a>';
-    }};
-    shouldCompileToWithPartials(string, [hash, helpers], true, '<a href="/root/goodbye">Goodbye</a>');
+    var string =
+      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
+    var hash = {
+      prefix: '/root',
+      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+    };
+    var helpers = {
+      link: function(prefix, options) {
+        return (
+          '<a href="' +
+          prefix +
+          '/' +
+          this.url +
+          '">' +
+          options.fn(this) +
+          '</a>'
+        );
+      }
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, helpers],
+      true,
+      '<a href="/root/goodbye">Goodbye</a>'
+    );
   });
   it('helper returning undefined value', function() {
-    shouldCompileTo(' {{nothere}}', [{}, {nothere: function() {}}], ' ');
-    shouldCompileTo(' {{#nothere}}{{/nothere}}', [{}, {nothere: function() {}}], ' ');
+    shouldCompileTo(' {{nothere}}', [{}, { nothere: function() {} }], ' ');
+    shouldCompileTo(
+      ' {{#nothere}}{{/nothere}}',
+      [{}, { nothere: function() {} }],
+      ' '
+    );
   });
 
   it('block helper', function() {
     var string = '{{#goodbyes}}{{text}}! {{/goodbyes}}cruel {{world}}!';
     var template = CompilerContext.compile(string);
 
-    var result = template({world: 'world'}, { helpers: {goodbyes: function(options) { return options.fn({text: 'GOODBYE'}); }}});
+    var result = template(
+      { world: 'world' },
+      {
+        helpers: {
+          goodbyes: function(options) {
+            return options.fn({ text: 'GOODBYE' });
+          }
+        }
+      }
+    );
     equal(result, 'GOODBYE! cruel world!', 'Block helper executed');
   });
 
@@ -128,21 +222,41 @@ describe('helpers', function() {
     var string = '{{#form}}<p>{{name}}</p>{{/form}}';
     var template = CompilerContext.compile(string);
 
-    var result = template({name: 'Yehuda'}, {helpers: {form: function(options) { return '<form>' + options.fn(this) + '</form>'; } }});
-    equal(result, '<form><p>Yehuda</p></form>', 'Block helper executed with current context');
+    var result = template(
+      { name: 'Yehuda' },
+      {
+        helpers: {
+          form: function(options) {
+            return '<form>' + options.fn(this) + '</form>';
+          }
+        }
+      }
+    );
+    equal(
+      result,
+      '<form><p>Yehuda</p></form>',
+      'Block helper executed with current context'
+    );
   });
 
   it('block helper should have context in this', function() {
-    var source = '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>';
+    var source =
+      '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>';
     function link(options) {
       return '<a href="/people/' + this.id + '">' + options.fn(this) + '</a>';
     }
-    var data = { 'people': [
-      { 'name': 'Alan', 'id': 1 },
-      { 'name': 'Yehuda', 'id': 2 }
-    ]};
+    var data = {
+      people: [
+        { name: 'Alan', id: 1 },
+        { name: 'Yehuda', id: 2 }
+      ]
+    };
 
-    shouldCompileTo(source, [data, {link: link}], '<ul><li><a href="/people/1">Alan</a></li><li><a href="/people/2">Yehuda</a></li></ul>');
+    shouldCompileTo(
+      source,
+      [data, { link: link }],
+      '<ul><li><a href="/people/1">Alan</a></li><li><a href="/people/2">Yehuda</a></li></ul>'
+    );
   });
 
   it('block helper for undefined value', function() {
@@ -153,7 +267,16 @@ describe('helpers', function() {
     var string = '{{#form yehuda}}<p>{{name}}</p>{{/form}}';
     var template = CompilerContext.compile(string);
 
-    var result = template({yehuda: {name: 'Yehuda'}}, { helpers: {form: function(context, options) { return '<form>' + options.fn(context) + '</form>'; }}});
+    var result = template(
+      { yehuda: { name: 'Yehuda' } },
+      {
+        helpers: {
+          form: function(context, options) {
+            return '<form>' + options.fn(context) + '</form>';
+          }
+        }
+      }
+    );
     equal(result, '<form><p>Yehuda</p></form>', 'Context variable resolved');
   });
 
@@ -161,27 +284,52 @@ describe('helpers', function() {
     var string = '{{#form yehuda/cat}}<p>{{name}}</p>{{/form}}';
     var template = CompilerContext.compile(string);
 
-    var result = template({yehuda: {name: 'Yehuda', cat: {name: 'Harold'}}}, { helpers: {form: function(context, options) { return '<form>' + options.fn(context) + '</form>'; }}});
-    equal(result, '<form><p>Harold</p></form>', 'Complex path variable resolved');
+    var result = template(
+      { yehuda: { name: 'Yehuda', cat: { name: 'Harold' } } },
+      {
+        helpers: {
+          form: function(context, options) {
+            return '<form>' + options.fn(context) + '</form>';
+          }
+        }
+      }
+    );
+    equal(
+      result,
+      '<form><p>Harold</p></form>',
+      'Complex path variable resolved'
+    );
   });
 
   it('nested block helpers', function() {
-    var string = '{{#form yehuda}}<p>{{name}}</p>{{#link}}Hello{{/link}}{{/form}}';
+    var string =
+      '{{#form yehuda}}<p>{{name}}</p>{{#link}}Hello{{/link}}{{/form}}';
     var template = CompilerContext.compile(string);
 
-    var result = template({
-      yehuda: {name: 'Yehuda' }
-    }, {
-      helpers: {
-        link: function(options) { return '<a href="' + this.name + '">' + options.fn(this) + '</a>'; },
-        form: function(context, options) { return '<form>' + options.fn(context) + '</form>'; }
+    var result = template(
+      {
+        yehuda: { name: 'Yehuda' }
+      },
+      {
+        helpers: {
+          link: function(options) {
+            return '<a href="' + this.name + '">' + options.fn(this) + '</a>';
+          },
+          form: function(context, options) {
+            return '<form>' + options.fn(context) + '</form>';
+          }
+        }
       }
-    });
-    equal(result, '<form><p>Yehuda</p><a href="Yehuda">Hello</a></form>', 'Both blocks executed');
+    );
+    equal(
+      result,
+      '<form><p>Yehuda</p><a href="Yehuda">Hello</a></form>',
+      'Both blocks executed'
+    );
   });
 
   it('block helper inverted sections', function() {
-    var string = '{{#list people}}{{name}}{{^}}<em>Nobody\'s here</em>{{/list}}';
+    var string = "{{#list people}}{{name}}{{^}}<em>Nobody's here</em>{{/list}}";
     function list(context, options) {
       if (context.length > 0) {
         var out = '<ul>';
@@ -197,20 +345,35 @@ describe('helpers', function() {
       }
     }
 
-    var hash = {people: [{name: 'Alan'}, {name: 'Yehuda'}]};
-    var empty = {people: []};
+    var hash = { people: [{ name: 'Alan' }, { name: 'Yehuda' }] };
+    var empty = { people: [] };
     var rootMessage = {
       people: [],
-      message: 'Nobody\'s here'
+      message: "Nobody's here"
     };
 
     var messageString = '{{#list people}}Hello{{^}}{{message}}{{/list}}';
 
     // the meaning here may be kind of hard to catch, but list.not is always called,
     // so we should see the output of both
-    shouldCompileTo(string, [hash, { list: list }], '<ul><li>Alan</li><li>Yehuda</li></ul>', 'an inverse wrapper is passed in as a new context');
-    shouldCompileTo(string, [empty, { list: list }], '<p><em>Nobody\'s here</em></p>', 'an inverse wrapper can be optionally called');
-    shouldCompileTo(messageString, [rootMessage, { list: list }], '<p>Nobody&#x27;s here</p>', 'the context of an inverse is the parent of the block');
+    shouldCompileTo(
+      string,
+      [hash, { list: list }],
+      '<ul><li>Alan</li><li>Yehuda</li></ul>',
+      'an inverse wrapper is passed in as a new context'
+    );
+    shouldCompileTo(
+      string,
+      [empty, { list: list }],
+      "<p><em>Nobody's here</em></p>",
+      'an inverse wrapper can be optionally called'
+    );
+    shouldCompileTo(
+      messageString,
+      [rootMessage, { list: list }],
+      '<p>Nobody&#x27;s here</p>',
+      'the context of an inverse is the parent of the block'
+    );
   });
 
   it('pathed lambas with parameters', function() {
@@ -231,40 +394,97 @@ describe('helpers', function() {
 
   describe('helpers hash', function() {
     it('providing a helpers hash', function() {
-      shouldCompileTo('Goodbye {{cruel}} {{world}}!', [{cruel: 'cruel'}, {world: function() { return 'world'; }}], 'Goodbye cruel world!',
-                      'helpers hash is available');
+      shouldCompileTo(
+        'Goodbye {{cruel}} {{world}}!',
+        [
+          { cruel: 'cruel' },
+          {
+            world: function() {
+              return 'world';
+            }
+          }
+        ],
+        'Goodbye cruel world!',
+        'helpers hash is available'
+      );
 
-      shouldCompileTo('Goodbye {{#iter}}{{cruel}} {{world}}{{/iter}}!', [{iter: [{cruel: 'cruel'}]}, {world: function() { return 'world'; }}],
-                      'Goodbye cruel world!', 'helpers hash is available inside other blocks');
+      shouldCompileTo(
+        'Goodbye {{#iter}}{{cruel}} {{world}}{{/iter}}!',
+        [
+          { iter: [{ cruel: 'cruel' }] },
+          {
+            world: function() {
+              return 'world';
+            }
+          }
+        ],
+        'Goodbye cruel world!',
+        'helpers hash is available inside other blocks'
+      );
     });
 
     it('in cases of conflict, helpers win', function() {
-      shouldCompileTo('{{{lookup}}}', [{lookup: 'Explicit'}, {lookup: function() { return 'helpers'; }}], 'helpers',
-                      'helpers hash has precedence escaped expansion');
-      shouldCompileTo('{{lookup}}', [{lookup: 'Explicit'}, {lookup: function() { return 'helpers'; }}], 'helpers',
-                      'helpers hash has precedence simple expansion');
+      shouldCompileTo(
+        '{{{lookup}}}',
+        [
+          { lookup: 'Explicit' },
+          {
+            lookup: function() {
+              return 'helpers';
+            }
+          }
+        ],
+        'helpers',
+        'helpers hash has precedence escaped expansion'
+      );
+      shouldCompileTo(
+        '{{lookup}}',
+        [
+          { lookup: 'Explicit' },
+          {
+            lookup: function() {
+              return 'helpers';
+            }
+          }
+        ],
+        'helpers',
+        'helpers hash has precedence simple expansion'
+      );
     });
 
     it('the helpers hash is available is nested contexts', function() {
       shouldCompileTo(
         '{{#outer}}{{#inner}}{{helper}}{{/inner}}{{/outer}}',
         [
-          {'outer': {'inner': {'unused': []}}},
-          {'helper': function() { return 'helper'; }}
+          { outer: { inner: { unused: [] } } },
+          {
+            helper: function() {
+              return 'helper';
+            }
+          }
         ],
         'helper',
-        'helpers hash is available in nested contexts.');
+        'helpers hash is available in nested contexts.'
+      );
     });
 
     it('the helper hash should augment the global hash', function() {
-      handlebarsEnv.registerHelper('test_helper', function() { return 'found it!'; });
+      handlebarsEnv.registerHelper('test_helper', function() {
+        return 'found it!';
+      });
 
       shouldCompileTo(
-        '{{test_helper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}', [
-          {cruel: 'cruel'},
-          {world: function() { return 'world!'; }}
+        '{{test_helper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}',
+        [
+          { cruel: 'cruel' },
+          {
+            world: function() {
+              return 'world!';
+            }
+          }
         ],
-        'found it! Goodbye cruel world!!');
+        'found it! Goodbye cruel world!!'
+      );
     });
   });
 
@@ -284,55 +504,106 @@ describe('helpers', function() {
       handlebarsEnv.helpers = {};
 
       handlebarsEnv.registerHelper({
-        'if': helpers['if'],
-        world: function() { return 'world!'; },
-        testHelper: function() { return 'found it!'; }
+        if: helpers['if'],
+        world: function() {
+          return 'world!';
+        },
+        testHelper: function() {
+          return 'found it!';
+        }
       });
 
       shouldCompileTo(
         '{{testHelper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}',
-        [{cruel: 'cruel'}],
-        'found it! Goodbye cruel world!!');
+        [{ cruel: 'cruel' }],
+        'found it! Goodbye cruel world!!'
+      );
     });
     it('fails with multiple and args', function() {
-      shouldThrow(function() {
-        handlebarsEnv.registerHelper({
-          world: function() { return 'world!'; },
-          testHelper: function() { return 'found it!'; }
-        }, {});
-      }, Error, 'Arg not supported with multiple helpers');
+      shouldThrow(
+        function() {
+          handlebarsEnv.registerHelper(
+            {
+              world: function() {
+                return 'world!';
+              },
+              testHelper: function() {
+                return 'found it!';
+              }
+            },
+            {}
+          );
+        },
+        Error,
+        'Arg not supported with multiple helpers'
+      );
     });
   });
 
   it('decimal number literals work', function() {
     var string = 'Message: {{hello -1.2 1.2}}';
-    var helpers = {hello: function(times, times2) {
-      if (typeof times !== 'number') { times = 'NaN'; }
-      if (typeof times2 !== 'number') { times2 = 'NaN'; }
-      return 'Hello ' + times + ' ' + times2 + ' times';
-    }};
-    shouldCompileTo(string, [{}, helpers], 'Message: Hello -1.2 1.2 times', 'template with a negative integer literal');
+    var helpers = {
+      hello: function(times, times2) {
+        if (typeof times !== 'number') {
+          times = 'NaN';
+        }
+        if (typeof times2 !== 'number') {
+          times2 = 'NaN';
+        }
+        return 'Hello ' + times + ' ' + times2 + ' times';
+      }
+    };
+    shouldCompileTo(
+      string,
+      [{}, helpers],
+      'Message: Hello -1.2 1.2 times',
+      'template with a negative integer literal'
+    );
   });
 
   it('negative number literals work', function() {
     var string = 'Message: {{hello -12}}';
-    var helpers = {hello: function(times) {
-      if (typeof times !== 'number') { times = 'NaN'; }
-      return 'Hello ' + times + ' times';
-    }};
-    shouldCompileTo(string, [{}, helpers], 'Message: Hello -12 times', 'template with a negative integer literal');
+    var helpers = {
+      hello: function(times) {
+        if (typeof times !== 'number') {
+          times = 'NaN';
+        }
+        return 'Hello ' + times + ' times';
+      }
+    };
+    shouldCompileTo(
+      string,
+      [{}, helpers],
+      'Message: Hello -12 times',
+      'template with a negative integer literal'
+    );
   });
 
   describe('String literal parameters', function() {
     it('simple literals work', function() {
       var string = 'Message: {{hello "world" 12 true false}}';
-      var helpers = {hello: function(param, times, bool1, bool2) {
-        if (typeof times !== 'number') { times = 'NaN'; }
-        if (typeof bool1 !== 'boolean') { bool1 = 'NaB'; }
-        if (typeof bool2 !== 'boolean') { bool2 = 'NaB'; }
-        return 'Hello ' + param + ' ' + times + ' times: ' + bool1 + ' ' + bool2;
-      }};
-      shouldCompileTo(string, [{}, helpers], 'Message: Hello world 12 times: true false', 'template with a simple String literal');
+      var helpers = {
+        hello: function(param, times, bool1, bool2) {
+          if (typeof times !== 'number') {
+            times = 'NaN';
+          }
+          if (typeof bool1 !== 'boolean') {
+            bool1 = 'NaB';
+          }
+          if (typeof bool2 !== 'boolean') {
+            bool2 = 'NaB';
+          }
+          return (
+            'Hello ' + param + ' ' + times + ' times: ' + bool1 + ' ' + bool2
+          );
+        }
+      };
+      shouldCompileTo(
+        string,
+        [{}, helpers],
+        'Message: Hello world 12 times: true false',
+        'template with a simple String literal'
+      );
     });
 
     it('using a quote in the middle of a parameter raises an error', function() {
@@ -344,57 +615,111 @@ describe('helpers', function() {
 
     it('escaping a String is possible', function() {
       var string = 'Message: {{{hello "\\"world\\""}}}';
-      var helpers = {hello: function(param) { return 'Hello ' + param; }};
-      shouldCompileTo(string, [{}, helpers], 'Message: Hello "world"', 'template with an escaped String literal');
+      var helpers = {
+        hello: function(param) {
+          return 'Hello ' + param;
+        }
+      };
+      shouldCompileTo(
+        string,
+        [{}, helpers],
+        'Message: Hello "world"',
+        'template with an escaped String literal'
+      );
     });
 
     it("it works with ' marks", function() {
       var string = 'Message: {{{hello "Alan\'s world"}}}';
-      var helpers = {hello: function(param) { return 'Hello ' + param; }};
-      shouldCompileTo(string, [{}, helpers], "Message: Hello Alan's world", "template with a ' mark");
+      var helpers = {
+        hello: function(param) {
+          return 'Hello ' + param;
+        }
+      };
+      shouldCompileTo(
+        string,
+        [{}, helpers],
+        "Message: Hello Alan's world",
+        "template with a ' mark"
+      );
     });
   });
 
   it('negative number literals work', function() {
     var string = 'Message: {{hello -12}}';
-    var helpers = {hello: function(times) {
-      if (typeof times !== 'number') { times = 'NaN'; }
-      return 'Hello ' + times + ' times';
-    }};
-    shouldCompileTo(string, [{}, helpers], 'Message: Hello -12 times', 'template with a negative integer literal');
+    var helpers = {
+      hello: function(times) {
+        if (typeof times !== 'number') {
+          times = 'NaN';
+        }
+        return 'Hello ' + times + ' times';
+      }
+    };
+    shouldCompileTo(
+      string,
+      [{}, helpers],
+      'Message: Hello -12 times',
+      'template with a negative integer literal'
+    );
   });
 
   describe('multiple parameters', function() {
     it('simple multi-params work', function() {
       var string = 'Message: {{goodbye cruel world}}';
-      var hash = {cruel: 'cruel', world: 'world'};
-      var helpers = {goodbye: function(cruel, world) { return 'Goodbye ' + cruel + ' ' + world; }};
-      shouldCompileTo(string, [hash, helpers], 'Message: Goodbye cruel world', 'regular helpers with multiple params');
+      var hash = { cruel: 'cruel', world: 'world' };
+      var helpers = {
+        goodbye: function(cruel, world) {
+          return 'Goodbye ' + cruel + ' ' + world;
+        }
+      };
+      shouldCompileTo(
+        string,
+        [hash, helpers],
+        'Message: Goodbye cruel world',
+        'regular helpers with multiple params'
+      );
     });
 
     it('block multi-params work', function() {
-      var string = 'Message: {{#goodbye cruel world}}{{greeting}} {{adj}} {{noun}}{{/goodbye}}';
-      var hash = {cruel: 'cruel', world: 'world'};
-      var helpers = {goodbye: function(cruel, world, options) {
-        return options.fn({greeting: 'Goodbye', adj: cruel, noun: world});
-      }};
-      shouldCompileTo(string, [hash, helpers], 'Message: Goodbye cruel world', 'block helpers with multiple params');
+      var string =
+        'Message: {{#goodbye cruel world}}{{greeting}} {{adj}} {{noun}}{{/goodbye}}';
+      var hash = { cruel: 'cruel', world: 'world' };
+      var helpers = {
+        goodbye: function(cruel, world, options) {
+          return options.fn({ greeting: 'Goodbye', adj: cruel, noun: world });
+        }
+      };
+      shouldCompileTo(
+        string,
+        [hash, helpers],
+        'Message: Goodbye cruel world',
+        'block helpers with multiple params'
+      );
     });
   });
 
   describe('hash', function() {
     it('helpers can take an optional hash', function() {
-      var template = CompilerContext.compile('{{goodbye cruel="CRUEL" world="WORLD" times=12}}');
+      var template = CompilerContext.compile(
+        '{{goodbye cruel="CRUEL" world="WORLD" times=12}}'
+      );
 
       var helpers = {
         goodbye: function(options) {
-          return 'GOODBYE ' + options.hash.cruel + ' ' + options.hash.world + ' ' + options.hash.times + ' TIMES';
+          return (
+            'GOODBYE ' +
+            options.hash.cruel +
+            ' ' +
+            options.hash.world +
+            ' ' +
+            options.hash.times +
+            ' TIMES'
+          );
         }
       };
 
       var context = {};
 
-      var result = template(context, {helpers: helpers});
+      var result = template(context, { helpers: helpers });
       equals(result, 'GOODBYE CRUEL WORLD 12 TIMES', 'Helper output hash');
     });
 
@@ -413,38 +738,62 @@ describe('helpers', function() {
 
       var context = {};
 
-      var template = CompilerContext.compile('{{goodbye cruel="CRUEL" world="WORLD" print=true}}');
-      var result = template(context, {helpers: helpers});
+      var template = CompilerContext.compile(
+        '{{goodbye cruel="CRUEL" world="WORLD" print=true}}'
+      );
+      var result = template(context, { helpers: helpers });
       equals(result, 'GOODBYE CRUEL WORLD', 'Helper output hash');
 
-      template = CompilerContext.compile('{{goodbye cruel="CRUEL" world="WORLD" print=false}}');
-      result = template(context, {helpers: helpers});
+      template = CompilerContext.compile(
+        '{{goodbye cruel="CRUEL" world="WORLD" print=false}}'
+      );
+      result = template(context, { helpers: helpers });
       equals(result, 'NOT PRINTING', 'Boolean helper parameter honored');
     });
 
     it('block helpers can take an optional hash', function() {
-      var template = CompilerContext.compile('{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}');
+      var template = CompilerContext.compile(
+        '{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}'
+      );
 
       var helpers = {
         goodbye: function(options) {
-          return 'GOODBYE ' + options.hash.cruel + ' ' + options.fn(this) + ' ' + options.hash.times + ' TIMES';
+          return (
+            'GOODBYE ' +
+            options.hash.cruel +
+            ' ' +
+            options.fn(this) +
+            ' ' +
+            options.hash.times +
+            ' TIMES'
+          );
         }
       };
 
-      var result = template({}, {helpers: helpers});
+      var result = template({}, { helpers: helpers });
       equals(result, 'GOODBYE CRUEL world 12 TIMES', 'Hash parameters output');
     });
 
     it('block helpers can take an optional hash with single quoted stings', function() {
-      var template = CompilerContext.compile('{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}');
+      var template = CompilerContext.compile(
+        '{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}'
+      );
 
       var helpers = {
         goodbye: function(options) {
-          return 'GOODBYE ' + options.hash.cruel + ' ' + options.fn(this) + ' ' + options.hash.times + ' TIMES';
+          return (
+            'GOODBYE ' +
+            options.hash.cruel +
+            ' ' +
+            options.fn(this) +
+            ' ' +
+            options.hash.times +
+            ' TIMES'
+          );
         }
       };
 
-      var result = template({}, {helpers: helpers});
+      var result = template({}, { helpers: helpers });
       equals(result, 'GOODBYE CRUEL world 12 TIMES', 'Hash parameters output');
     });
 
@@ -461,22 +810,30 @@ describe('helpers', function() {
         }
       };
 
-      var template = CompilerContext.compile('{{#goodbye cruel="CRUEL" print=true}}world{{/goodbye}}');
-      var result = template({}, {helpers: helpers});
+      var template = CompilerContext.compile(
+        '{{#goodbye cruel="CRUEL" print=true}}world{{/goodbye}}'
+      );
+      var result = template({}, { helpers: helpers });
       equals(result, 'GOODBYE CRUEL world', 'Boolean hash parameter honored');
 
-      template = CompilerContext.compile('{{#goodbye cruel="CRUEL" print=false}}world{{/goodbye}}');
-      result = template({}, {helpers: helpers});
+      template = CompilerContext.compile(
+        '{{#goodbye cruel="CRUEL" print=false}}world{{/goodbye}}'
+      );
+      result = template({}, { helpers: helpers });
       equals(result, 'NOT PRINTING', 'Boolean hash parameter honored');
     });
   });
 
   describe('helperMissing', function() {
     it('if a context is not found, helperMissing is used', function() {
-      shouldThrow(function() {
+      shouldThrow(
+        function() {
           var template = CompilerContext.compile('{{hello}} {{link_to world}}');
           template({});
-      }, undefined, /Missing helper: "link_to"/);
+        },
+        undefined,
+        /Missing helper: "link_to"/
+      );
     });
 
     it('if a context is not found, custom helperMissing is used', function() {
@@ -512,50 +869,91 @@ describe('helpers', function() {
 
   describe('knownHelpers', function() {
     it('Known helper should render helper', function() {
-      var template = CompilerContext.compile('{{hello}}', {knownHelpers: {hello: true}});
+      var template = CompilerContext.compile('{{hello}}', {
+        knownHelpers: { hello: true }
+      });
 
-      var result = template({}, {helpers: {hello: function() { return 'foo'; }}});
+      var result = template(
+        {},
+        {
+          helpers: {
+            hello: function() {
+              return 'foo';
+            }
+          }
+        }
+      );
       equal(result, 'foo', "'foo' should === '" + result);
     });
 
     it('Unknown helper in knownHelpers only mode should be passed as undefined', function() {
-      var template = CompilerContext.compile('{{typeof hello}}', {knownHelpers: {'typeof': true}, knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{typeof hello}}', {
+        knownHelpers: { typeof: true },
+        knownHelpersOnly: true
+      });
 
-      var result = template({}, {helpers: {'typeof': function(arg) { return typeof arg; }, hello: function() { return 'foo'; }}});
+      var result = template(
+        {},
+        {
+          helpers: {
+            typeof: function(arg) {
+              return typeof arg;
+            },
+            hello: function() {
+              return 'foo';
+            }
+          }
+        }
+      );
       equal(result, 'undefined', "'undefined' should === '" + result);
     });
     it('Builtin helpers available in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{#unless foo}}bar{{/unless}}', {knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{#unless foo}}bar{{/unless}}', {
+        knownHelpersOnly: true
+      });
 
       var result = template({});
       equal(result, 'bar', "'bar' should === '" + result);
     });
     it('Field lookup works in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{foo}}', {knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{foo}}', {
+        knownHelpersOnly: true
+      });
 
-      var result = template({foo: 'bar'});
+      var result = template({ foo: 'bar' });
       equal(result, 'bar', "'bar' should === '" + result);
     });
     it('Conditional blocks work in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{#foo}}bar{{/foo}}', {knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{#foo}}bar{{/foo}}', {
+        knownHelpersOnly: true
+      });
 
-      var result = template({foo: 'baz'});
+      var result = template({ foo: 'baz' });
       equal(result, 'bar', "'bar' should === '" + result);
     });
     it('Invert blocks work in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{^foo}}bar{{/foo}}', {knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{^foo}}bar{{/foo}}', {
+        knownHelpersOnly: true
+      });
 
-      var result = template({foo: false});
+      var result = template({ foo: false });
       equal(result, 'bar', "'bar' should === '" + result);
     });
     it('Functions are bound to the context in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{foo}}', {knownHelpersOnly: true});
-      var result = template({foo: function() { return this.bar; }, bar: 'bar'});
+      var template = CompilerContext.compile('{{foo}}', {
+        knownHelpersOnly: true
+      });
+      var result = template({
+        foo: function() {
+          return this.bar;
+        },
+        bar: 'bar'
+      });
       equal(result, 'bar', "'bar' should === '" + result);
     });
     it('Unknown helper call in knownHelpers only mode should throw', function() {
       shouldThrow(function() {
-        CompilerContext.compile('{{typeof hello}}', {knownHelpersOnly: true});
+        CompilerContext.compile('{{typeof hello}}', { knownHelpersOnly: true });
       }, Error);
     });
   });
@@ -563,12 +961,23 @@ describe('helpers', function() {
   describe('blockHelperMissing', function() {
     it('lambdas are resolved by blockHelperMissing, not handlebars proper', function() {
       var string = '{{#truthy}}yep{{/truthy}}';
-      var data = { truthy: function() { return true; } };
+      var data = {
+        truthy: function() {
+          return true;
+        }
+      };
       shouldCompileTo(string, data, 'yep');
     });
     it('lambdas resolved by blockHelperMissing are bound to the context', function() {
       var string = '{{#truthy}}yep{{/truthy}}';
-      var boundData = { truthy: function() { return this.truthiness(); }, truthiness: function() { return false; } };
+      var boundData = {
+        truthy: function() {
+          return this.truthiness();
+        },
+        truthiness: function() {
+          return false;
+        }
+      };
       shouldCompileTo(string, boundData, '');
     });
   });
@@ -594,26 +1003,49 @@ describe('helpers', function() {
       shouldCompileTo('{{helper 1}}', [context, helpers], 'ran: helper');
     });
     it('should include in ambiguous block calls', function() {
-      shouldCompileTo('{{#helper}}{{/helper}}', [context, helpers], 'ran: helper');
+      shouldCompileTo(
+        '{{#helper}}{{/helper}}',
+        [context, helpers],
+        'ran: helper'
+      );
     });
     it('should include in simple block calls', function() {
-      shouldCompileTo('{{#./helper}}{{/./helper}}', [context, helpers], 'missing: ./helper');
+      shouldCompileTo(
+        '{{#./helper}}{{/./helper}}',
+        [context, helpers],
+        'missing: ./helper'
+      );
     });
     it('should include in helper block calls', function() {
-      shouldCompileTo('{{#helper 1}}{{/helper}}', [context, helpers], 'ran: helper');
+      shouldCompileTo(
+        '{{#helper 1}}{{/helper}}',
+        [context, helpers],
+        'ran: helper'
+      );
     });
     it('should include in known helper calls', function() {
-      var template = CompilerContext.compile('{{helper}}', {knownHelpers: {'helper': true}, knownHelpersOnly: true});
+      var template = CompilerContext.compile('{{helper}}', {
+        knownHelpers: { helper: true },
+        knownHelpersOnly: true
+      });
 
-      equal(template({}, {helpers: helpers}), 'ran: helper');
+      equal(template({}, { helpers: helpers }), 'ran: helper');
     });
 
     it('should include full id', function() {
-      shouldCompileTo('{{#foo.helper}}{{/foo.helper}}', [{foo: {}}, helpers], 'missing: foo.helper');
+      shouldCompileTo(
+        '{{#foo.helper}}{{/foo.helper}}',
+        [{ foo: {} }, helpers],
+        'missing: foo.helper'
+      );
     });
 
     it('should include full id if a hash is passed', function() {
-      shouldCompileTo('{{#foo.helper bar=baz}}{{/foo.helper}}', [{foo: {}}, helpers], 'helper missing: foo.helper');
+      shouldCompileTo(
+        '{{#foo.helper bar=baz}}{{/foo.helper}}',
+        [{ foo: {} }, helpers],
+        'helper missing: foo.helper'
+      );
     });
   });
 
@@ -636,12 +1068,14 @@ describe('helpers', function() {
         world: 'world'
       };
 
-      var result = template(context, {helpers: helpers});
+      var result = template(context, { helpers: helpers });
       equals(result, 'GOODBYE cruel WORLD', 'Helper executed');
     });
 
     it('helpers take precedence over same-named context properties$', function() {
-      var template = CompilerContext.compile('{{#goodbye}} {{cruel world}}{{/goodbye}}');
+      var template = CompilerContext.compile(
+        '{{#goodbye}} {{cruel world}}{{/goodbye}}'
+      );
 
       var helpers = {
         goodbye: function(options) {
@@ -658,12 +1092,14 @@ describe('helpers', function() {
         world: 'world'
       };
 
-      var result = template(context, {helpers: helpers});
+      var result = template(context, { helpers: helpers });
       equals(result, 'GOODBYE cruel WORLD', 'Helper executed');
     });
 
     it('Scoped names take precedence over helpers', function() {
-      var template = CompilerContext.compile('{{this.goodbye}} {{cruel world}} {{cruel this.goodbye}}');
+      var template = CompilerContext.compile(
+        '{{this.goodbye}} {{cruel world}} {{cruel this.goodbye}}'
+      );
 
       var helpers = {
         goodbye: function() {
@@ -680,12 +1116,18 @@ describe('helpers', function() {
         world: 'world'
       };
 
-      var result = template(context, {helpers: helpers});
-      equals(result, 'goodbye cruel WORLD cruel GOODBYE', 'Helper not executed');
+      var result = template(context, { helpers: helpers });
+      equals(
+        result,
+        'goodbye cruel WORLD cruel GOODBYE',
+        'Helper not executed'
+      );
     });
 
     it('Scoped names take precedence over block helpers', function() {
-      var template = CompilerContext.compile('{{#goodbye}} {{cruel world}}{{/goodbye}} {{this.goodbye}}');
+      var template = CompilerContext.compile(
+        '{{#goodbye}} {{cruel world}}{{/goodbye}} {{this.goodbye}}'
+      );
 
       var helpers = {
         goodbye: function(options) {
@@ -702,21 +1144,25 @@ describe('helpers', function() {
         world: 'world'
       };
 
-      var result = template(context, {helpers: helpers});
+      var result = template(context, { helpers: helpers });
       equals(result, 'GOODBYE cruel WORLD goodbye', 'Helper executed');
     });
   });
 
   describe('block params', function() {
     it('should take presedence over context values', function() {
-      var hash = {value: 'foo'};
+      var hash = { value: 'foo' };
       var helpers = {
         goodbyes: function(options) {
           equals(options.fn.blockParams, 1);
-          return options.fn({value: 'bar'}, {blockParams: [1, 2]});
+          return options.fn({ value: 'bar' }, { blockParams: [1, 2] });
         }
       };
-      shouldCompileTo('{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}', [hash, helpers], '1foo');
+      shouldCompileTo(
+        '{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}',
+        [hash, helpers],
+        '1foo'
+      );
     });
     it('should take presedence over helper values', function() {
       var hash = {};
@@ -726,110 +1172,160 @@ describe('helpers', function() {
         },
         goodbyes: function(options) {
           equals(options.fn.blockParams, 1);
-          return options.fn({}, {blockParams: [1, 2]});
+          return options.fn({}, { blockParams: [1, 2] });
         }
       };
-      shouldCompileTo('{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}', [hash, helpers], '1foo');
+      shouldCompileTo(
+        '{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}',
+        [hash, helpers],
+        '1foo'
+      );
     });
     it('should not take presedence over pathed values', function() {
-      var hash = {value: 'bar'};
+      var hash = { value: 'bar' };
       var helpers = {
         value: function() {
           return 'foo';
         },
         goodbyes: function(options) {
           equals(options.fn.blockParams, 1);
-          return options.fn(this, {blockParams: [1, 2]});
+          return options.fn(this, { blockParams: [1, 2] });
         }
       };
-      shouldCompileTo('{{#goodbyes as |value|}}{{./value}}{{/goodbyes}}{{value}}', [hash, helpers], 'barfoo');
+      shouldCompileTo(
+        '{{#goodbyes as |value|}}{{./value}}{{/goodbyes}}{{value}}',
+        [hash, helpers],
+        'barfoo'
+      );
     });
     it('should take presednece over parent block params', function() {
-      var hash = {value: 'foo'},
-          value = 1;
+      var hash = { value: 'foo' },
+        value = 1;
       var helpers = {
         goodbyes: function(options) {
-          return options.fn({value: 'bar'}, {blockParams: options.fn.blockParams === 1 ? [value++, value++] : undefined});
+          return options.fn(
+            { value: 'bar' },
+            {
+              blockParams:
+                options.fn.blockParams === 1 ? [value++, value++] : undefined
+            }
+          );
         }
       };
-      shouldCompileTo('{{#goodbyes as |value|}}{{#goodbyes}}{{value}}{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{/goodbyes}}{{/goodbyes}}{{value}}', [hash, helpers], '13foo');
+      shouldCompileTo(
+        '{{#goodbyes as |value|}}{{#goodbyes}}{{value}}{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{/goodbyes}}{{/goodbyes}}{{value}}',
+        [hash, helpers],
+        '13foo'
+      );
     });
 
     it('should allow block params on chained helpers', function() {
-      var hash = {value: 'foo'};
+      var hash = { value: 'foo' };
       var helpers = {
         goodbyes: function(options) {
           equals(options.fn.blockParams, 1);
-          return options.fn({value: 'bar'}, {blockParams: [1, 2]});
+          return options.fn({ value: 'bar' }, { blockParams: [1, 2] });
         }
       };
-      shouldCompileTo('{{#if bar}}{{else goodbyes as |value|}}{{value}}{{/if}}{{value}}', [hash, helpers], '1foo');
+      shouldCompileTo(
+        '{{#if bar}}{{else goodbyes as |value|}}{{value}}{{/if}}{{value}}',
+        [hash, helpers],
+        '1foo'
+      );
     });
   });
 
   describe('built-in helpers malformed arguments ', function() {
     it('if helper - too few arguments', function() {
       var template = CompilerContext.compile('{{#if}}{{/if}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#if requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#if requires exactly one argument/
+      );
     });
 
     it('if helper - too many arguments, string', function() {
       var template = CompilerContext.compile('{{#if test "string"}}{{/if}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#if requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#if requires exactly one argument/
+      );
     });
 
     it('if helper - too many arguments, undefined', function() {
       var template = CompilerContext.compile('{{#if test undefined}}{{/if}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#if requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#if requires exactly one argument/
+      );
     });
 
     it('if helper - too many arguments, null', function() {
       var template = CompilerContext.compile('{{#if test null}}{{/if}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#if requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#if requires exactly one argument/
+      );
     });
 
     it('unless helper - too few arguments', function() {
       var template = CompilerContext.compile('{{#unless}}{{/unless}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#unless requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#unless requires exactly one argument/
+      );
     });
 
     it('unless helper - too many arguments', function() {
-      var template = CompilerContext.compile('{{#unless test null}}{{/unless}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#unless requires exactly one argument/);
+      var template = CompilerContext.compile(
+        '{{#unless test null}}{{/unless}}'
+      );
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#unless requires exactly one argument/
+      );
     });
 
     it('with helper - too few arguments', function() {
       var template = CompilerContext.compile('{{#with}}{{/with}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#with requires exactly one argument/);
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#with requires exactly one argument/
+      );
     });
 
     it('with helper - too many arguments', function() {
-      var template = CompilerContext.compile('{{#with test "string"}}{{/with}}');
-        shouldThrow(function() {
-
-            template({});
-        }, undefined, /#with requires exactly one argument/);
+      var template = CompilerContext.compile(
+        '{{#with test "string"}}{{/with}}'
+      );
+      shouldThrow(
+        function() {
+          template({});
+        },
+        undefined,
+        /#with requires exactly one argument/
+      );
     });
   });
 });
diff --git a/spec/javascript-compiler.js b/spec/javascript-compiler.js
index 5a10388f0..21b8e2a0a 100644
--- a/spec/javascript-compiler.js
+++ b/spec/javascript-compiler.js
@@ -13,7 +13,10 @@ describe('javascript-compiler api', function() {
     });
 
     it('should allow override', function() {
-      handlebarsEnv.JavaScriptCompiler.prototype.nameLookup = function(parent, name) {
+      handlebarsEnv.JavaScriptCompiler.prototype.nameLookup = function(
+        parent,
+        name
+      ) {
         return parent + '.bar_' + name;
       };
       /* eslint-disable camelcase */
@@ -43,7 +46,7 @@ describe('javascript-compiler api', function() {
       };
       handlebarsEnv.VM.checkRevision = function(compilerInfo) {
         if (compilerInfo !== 'crazy') {
-          throw new Error('It didn\'t work');
+          throw new Error("It didn't work");
         }
       };
       shouldCompileTo('{{foo}} ', { foo: 'food' }, 'food ');
@@ -54,7 +57,8 @@ describe('javascript-compiler api', function() {
     beforeEach(function() {
       handlebarsEnv.JavaScriptCompiler.prototype.forceBuffer = true;
       $superAppend = handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer;
-      $superCreate = handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer;
+      $superCreate =
+        handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer;
     });
     afterEach(function() {
       handlebarsEnv.JavaScriptCompiler.prototype.forceBuffer = false;
@@ -69,7 +73,9 @@ describe('javascript-compiler api', function() {
       shouldCompileTo('{{foo}} ', { foo: 'food' }, 'foo_food ');
     });
     it('should allow append buffer override', function() {
-      handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer = function(string) {
+      handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer = function(
+        string
+      ) {
         return $superAppend.call(this, [string, ' + "_foo"']);
       };
       shouldCompileTo('{{foo}}', { foo: 'food' }, 'food_foo');
diff --git a/spec/parser.js b/spec/parser.js
index 856031c3b..2aa7e39ff 100644
--- a/spec/parser.js
+++ b/spec/parser.js
@@ -68,7 +68,10 @@ describe('parser', function() {
     equals(astFor('{{null}}'), '{{ NULL [] }}\n');
   });
   it('parses mustaches with undefined and null parameters', function() {
-    equals(astFor('{{foo undefined null}}'), '{{ PATH:foo [UNDEFINED, NULL] }}\n');
+    equals(
+      astFor('{{foo undefined null}}'),
+      '{{ PATH:foo [UNDEFINED, NULL] }}\n'
+    );
   });
 
   it('parses mustaches with DATA parameters', function() {
@@ -78,23 +81,53 @@ describe('parser', function() {
   it('parses mustaches with hash arguments', function() {
     equals(astFor('{{foo bar=baz}}'), '{{ PATH:foo [] HASH{bar=PATH:baz} }}\n');
     equals(astFor('{{foo bar=1}}'), '{{ PATH:foo [] HASH{bar=NUMBER{1}} }}\n');
-    equals(astFor('{{foo bar=true}}'), '{{ PATH:foo [] HASH{bar=BOOLEAN{true}} }}\n');
-    equals(astFor('{{foo bar=false}}'), '{{ PATH:foo [] HASH{bar=BOOLEAN{false}} }}\n');
-    equals(astFor('{{foo bar=@baz}}'), '{{ PATH:foo [] HASH{bar=@PATH:baz} }}\n');
-
-    equals(astFor('{{foo bar=baz bat=bam}}'), '{{ PATH:foo [] HASH{bar=PATH:baz, bat=PATH:bam} }}\n');
-    equals(astFor('{{foo bar=baz bat="bam"}}'), '{{ PATH:foo [] HASH{bar=PATH:baz, bat="bam"} }}\n');
+    equals(
+      astFor('{{foo bar=true}}'),
+      '{{ PATH:foo [] HASH{bar=BOOLEAN{true}} }}\n'
+    );
+    equals(
+      astFor('{{foo bar=false}}'),
+      '{{ PATH:foo [] HASH{bar=BOOLEAN{false}} }}\n'
+    );
+    equals(
+      astFor('{{foo bar=@baz}}'),
+      '{{ PATH:foo [] HASH{bar=@PATH:baz} }}\n'
+    );
+
+    equals(
+      astFor('{{foo bar=baz bat=bam}}'),
+      '{{ PATH:foo [] HASH{bar=PATH:baz, bat=PATH:bam} }}\n'
+    );
+    equals(
+      astFor('{{foo bar=baz bat="bam"}}'),
+      '{{ PATH:foo [] HASH{bar=PATH:baz, bat="bam"} }}\n'
+    );
 
     equals(astFor("{{foo bat='bam'}}"), '{{ PATH:foo [] HASH{bat="bam"} }}\n');
 
-    equals(astFor('{{foo omg bar=baz bat="bam"}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam"} }}\n');
-    equals(astFor('{{foo omg bar=baz bat="bam" baz=1}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=NUMBER{1}} }}\n');
-    equals(astFor('{{foo omg bar=baz bat="bam" baz=true}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{true}} }}\n');
-    equals(astFor('{{foo omg bar=baz bat="bam" baz=false}}'), '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{false}} }}\n');
+    equals(
+      astFor('{{foo omg bar=baz bat="bam"}}'),
+      '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam"} }}\n'
+    );
+    equals(
+      astFor('{{foo omg bar=baz bat="bam" baz=1}}'),
+      '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=NUMBER{1}} }}\n'
+    );
+    equals(
+      astFor('{{foo omg bar=baz bat="bam" baz=true}}'),
+      '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{true}} }}\n'
+    );
+    equals(
+      astFor('{{foo omg bar=baz bat="bam" baz=false}}'),
+      '{{ PATH:foo [PATH:omg] HASH{bar=PATH:baz, bat="bam", baz=BOOLEAN{false}} }}\n'
+    );
   });
 
   it('parses contents followed by a mustache', function() {
-    equals(astFor('foo bar {{baz}}'), 'CONTENT[ \'foo bar \' ]\n{{ PATH:baz [] }}\n');
+    equals(
+      astFor('foo bar {{baz}}'),
+      "CONTENT[ 'foo bar ' ]\n{{ PATH:baz [] }}\n"
+    );
   });
 
   it('parses a partial', function() {
@@ -108,47 +141,81 @@ describe('parser', function() {
   });
 
   it('parses a partial with hash', function() {
-    equals(astFor('{{> foo bar=bat}}'), '{{> PARTIAL:foo HASH{bar=PATH:bat} }}\n');
+    equals(
+      astFor('{{> foo bar=bat}}'),
+      '{{> PARTIAL:foo HASH{bar=PATH:bat} }}\n'
+    );
   });
 
   it('parses a partial with context and hash', function() {
-    equals(astFor('{{> foo bar bat=baz}}'), '{{> PARTIAL:foo PATH:bar HASH{bat=PATH:baz} }}\n');
+    equals(
+      astFor('{{> foo bar bat=baz}}'),
+      '{{> PARTIAL:foo PATH:bar HASH{bat=PATH:baz} }}\n'
+    );
   });
 
   it('parses a partial with a complex name', function() {
-    equals(astFor('{{> shared/partial?.bar}}'), '{{> PARTIAL:shared/partial?.bar }}\n');
+    equals(
+      astFor('{{> shared/partial?.bar}}'),
+      '{{> PARTIAL:shared/partial?.bar }}\n'
+    );
   });
 
   it('parsers partial blocks', function() {
-    equals(astFor('{{#> foo}}bar{{/foo}}'), '{{> PARTIAL BLOCK:foo PROGRAM:\n  CONTENT[ \'bar\' ]\n }}\n');
+    equals(
+      astFor('{{#> foo}}bar{{/foo}}'),
+      "{{> PARTIAL BLOCK:foo PROGRAM:\n  CONTENT[ 'bar' ]\n }}\n"
+    );
   });
   it('should handle parser block mismatch', function() {
-    shouldThrow(function() {
-      astFor('{{#> goodbyes}}{{/hellos}}');
-    }, Error, (/goodbyes doesn't match hellos/));
+    shouldThrow(
+      function() {
+        astFor('{{#> goodbyes}}{{/hellos}}');
+      },
+      Error,
+      /goodbyes doesn't match hellos/
+    );
   });
   it('parsers partial blocks with arguments', function() {
-    equals(astFor('{{#> foo context hash=value}}bar{{/foo}}'), '{{> PARTIAL BLOCK:foo PATH:context HASH{hash=PATH:value} PROGRAM:\n  CONTENT[ \'bar\' ]\n }}\n');
+    equals(
+      astFor('{{#> foo context hash=value}}bar{{/foo}}'),
+      "{{> PARTIAL BLOCK:foo PATH:context HASH{hash=PATH:value} PROGRAM:\n  CONTENT[ 'bar' ]\n }}\n"
+    );
   });
 
   it('parses a comment', function() {
-    equals(astFor('{{! this is a comment }}'), "{{! ' this is a comment ' }}\n");
+    equals(
+      astFor('{{! this is a comment }}'),
+      "{{! ' this is a comment ' }}\n"
+    );
   });
 
   it('parses a multi-line comment', function() {
-    equals(astFor('{{!\nthis is a multi-line comment\n}}'), "{{! '\nthis is a multi-line comment\n' }}\n");
+    equals(
+      astFor('{{!\nthis is a multi-line comment\n}}'),
+      "{{! '\nthis is a multi-line comment\n' }}\n"
+    );
   });
 
   it('parses an inverse section', function() {
-    equals(astFor('{{#foo}} bar {{^}} baz {{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    CONTENT[ ' baz ' ]\n");
+    equals(
+      astFor('{{#foo}} bar {{^}} baz {{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    CONTENT[ ' baz ' ]\n"
+    );
   });
 
   it('parses an inverse (else-style) section', function() {
-    equals(astFor('{{#foo}} bar {{else}} baz {{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    CONTENT[ ' baz ' ]\n");
+    equals(
+      astFor('{{#foo}} bar {{else}} baz {{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    CONTENT[ ' baz ' ]\n"
+    );
   });
 
   it('parses multiple inverse sections', function() {
-    equals(astFor('{{#foo}} bar {{else if bar}}{{else}} baz {{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    BLOCK:\n      PATH:if [PATH:bar]\n      PROGRAM:\n      {{^}}\n        CONTENT[ ' baz ' ]\n");
+    equals(
+      astFor('{{#foo}} bar {{else if bar}}{{else}} baz {{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n    BLOCK:\n      PATH:if [PATH:bar]\n      PROGRAM:\n      {{^}}\n        CONTENT[ ' baz ' ]\n"
+    );
   });
 
   it('parses empty blocks', function() {
@@ -156,31 +223,52 @@ describe('parser', function() {
   });
 
   it('parses empty blocks with empty inverse section', function() {
-    equals(astFor('{{#foo}}{{^}}{{/foo}}'), 'BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n');
+    equals(
+      astFor('{{#foo}}{{^}}{{/foo}}'),
+      'BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n'
+    );
   });
 
   it('parses empty blocks with empty inverse (else-style) section', function() {
-    equals(astFor('{{#foo}}{{else}}{{/foo}}'), 'BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n');
+    equals(
+      astFor('{{#foo}}{{else}}{{/foo}}'),
+      'BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n'
+    );
   });
 
   it('parses non-empty blocks with empty inverse section', function() {
-    equals(astFor('{{#foo}} bar {{^}}{{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n");
+    equals(
+      astFor('{{#foo}} bar {{^}}{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n"
+    );
   });
 
   it('parses non-empty blocks with empty inverse (else-style) section', function() {
-    equals(astFor('{{#foo}} bar {{else}}{{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n");
+    equals(
+      astFor('{{#foo}} bar {{else}}{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    CONTENT[ ' bar ' ]\n  {{^}}\n"
+    );
   });
 
   it('parses empty blocks with non-empty inverse section', function() {
-    equals(astFor('{{#foo}}{{^}} bar {{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    CONTENT[ ' bar ' ]\n");
+    equals(
+      astFor('{{#foo}}{{^}} bar {{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    CONTENT[ ' bar ' ]\n"
+    );
   });
 
   it('parses empty blocks with non-empty inverse (else-style) section', function() {
-    equals(astFor('{{#foo}}{{else}} bar {{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    CONTENT[ ' bar ' ]\n");
+    equals(
+      astFor('{{#foo}}{{else}} bar {{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    CONTENT[ ' bar ' ]\n"
+    );
   });
 
   it('parses a standalone inverse section', function() {
-    equals(astFor('{{^foo}}bar{{/foo}}'), "BLOCK:\n  PATH:foo []\n  {{^}}\n    CONTENT[ 'bar' ]\n");
+    equals(
+      astFor('{{^foo}}bar{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  {{^}}\n    CONTENT[ 'bar' ]\n"
+    );
   });
   it('throws on old inverse section', function() {
     shouldThrow(function() {
@@ -189,105 +277,179 @@ describe('parser', function() {
   });
 
   it('parses block with block params', function() {
-    equals(astFor('{{#foo as |bar baz|}}content{{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    BLOCK PARAMS: [ bar baz ]\n    CONTENT[ 'content' ]\n");
+    equals(
+      astFor('{{#foo as |bar baz|}}content{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n    BLOCK PARAMS: [ bar baz ]\n    CONTENT[ 'content' ]\n"
+    );
   });
 
   it('parses inverse block with block params', function() {
-    equals(astFor('{{^foo as |bar baz|}}content{{/foo}}'), "BLOCK:\n  PATH:foo []\n  {{^}}\n    BLOCK PARAMS: [ bar baz ]\n    CONTENT[ 'content' ]\n");
+    equals(
+      astFor('{{^foo as |bar baz|}}content{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  {{^}}\n    BLOCK PARAMS: [ bar baz ]\n    CONTENT[ 'content' ]\n"
+    );
   });
   it('parses chained inverse block with block params', function() {
-    equals(astFor('{{#foo}}{{else foo as |bar baz|}}content{{/foo}}'), "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    BLOCK:\n      PATH:foo []\n      PROGRAM:\n        BLOCK PARAMS: [ bar baz ]\n        CONTENT[ 'content' ]\n");
-  });
-  it('raises if there\'s a Parse error', function() {
-    shouldThrow(function() {
-      astFor('foo{{^}}bar');
-    }, Error, /Parse error on line 1/);
-    shouldThrow(function() {
-      astFor('{{foo}');
-    }, Error, /Parse error on line 1/);
-    shouldThrow(function() {
-      astFor('{{foo &}}');
-    }, Error, /Parse error on line 1/);
-    shouldThrow(function() {
-      astFor('{{#goodbyes}}{{/hellos}}');
-    }, Error, /goodbyes doesn't match hellos/);
-
-    shouldThrow(function() {
-      astFor('{{{{goodbyes}}}} {{{{/hellos}}}}');
-    }, Error, /goodbyes doesn't match hellos/);
+    equals(
+      astFor('{{#foo}}{{else foo as |bar baz|}}content{{/foo}}'),
+      "BLOCK:\n  PATH:foo []\n  PROGRAM:\n  {{^}}\n    BLOCK:\n      PATH:foo []\n      PROGRAM:\n        BLOCK PARAMS: [ bar baz ]\n        CONTENT[ 'content' ]\n"
+    );
+  });
+  it("raises if there's a Parse error", function() {
+    shouldThrow(
+      function() {
+        astFor('foo{{^}}bar');
+      },
+      Error,
+      /Parse error on line 1/
+    );
+    shouldThrow(
+      function() {
+        astFor('{{foo}');
+      },
+      Error,
+      /Parse error on line 1/
+    );
+    shouldThrow(
+      function() {
+        astFor('{{foo &}}');
+      },
+      Error,
+      /Parse error on line 1/
+    );
+    shouldThrow(
+      function() {
+        astFor('{{#goodbyes}}{{/hellos}}');
+      },
+      Error,
+      /goodbyes doesn't match hellos/
+    );
+
+    shouldThrow(
+      function() {
+        astFor('{{{{goodbyes}}}} {{{{/hellos}}}}');
+      },
+      Error,
+      /goodbyes doesn't match hellos/
+    );
   });
 
   it('should handle invalid paths', function() {
-    shouldThrow(function() {
-      astFor('{{foo/../bar}}');
-    }, Error, /Invalid path: foo\/\.\. - 1:2/);
-    shouldThrow(function() {
-      astFor('{{foo/./bar}}');
-    }, Error, /Invalid path: foo\/\. - 1:2/);
-    shouldThrow(function() {
-      astFor('{{foo/this/bar}}');
-    }, Error, /Invalid path: foo\/this - 1:2/);
+    shouldThrow(
+      function() {
+        astFor('{{foo/../bar}}');
+      },
+      Error,
+      /Invalid path: foo\/\.\. - 1:2/
+    );
+    shouldThrow(
+      function() {
+        astFor('{{foo/./bar}}');
+      },
+      Error,
+      /Invalid path: foo\/\. - 1:2/
+    );
+    shouldThrow(
+      function() {
+        astFor('{{foo/this/bar}}');
+      },
+      Error,
+      /Invalid path: foo\/this - 1:2/
+    );
   });
 
   it('knows how to report the correct line number in errors', function() {
-    shouldThrow(function() {
-      astFor('hello\nmy\n{{foo}');
-    }, Error, /Parse error on line 3/);
-    shouldThrow(function() {
-      astFor('hello\n\nmy\n\n{{foo}');
-    }, Error, /Parse error on line 5/);
+    shouldThrow(
+      function() {
+        astFor('hello\nmy\n{{foo}');
+      },
+      Error,
+      /Parse error on line 3/
+    );
+    shouldThrow(
+      function() {
+        astFor('hello\n\nmy\n\n{{foo}');
+      },
+      Error,
+      /Parse error on line 5/
+    );
   });
 
   it('knows how to report the correct line number in errors when the first character is a newline', function() {
-    shouldThrow(function() {
-      astFor('\n\nhello\n\nmy\n\n{{foo}');
-    }, Error, /Parse error on line 7/);
+    shouldThrow(
+      function() {
+        astFor('\n\nhello\n\nmy\n\n{{foo}');
+      },
+      Error,
+      /Parse error on line 7/
+    );
   });
 
   describe('externally compiled AST', function() {
     it('can pass through an already-compiled AST', function() {
-      equals(astFor({
-        type: 'Program',
-        body: [ {type: 'ContentStatement', value: 'Hello'}]
-      }), 'CONTENT[ \'Hello\' ]\n');
+      equals(
+        astFor({
+          type: 'Program',
+          body: [{ type: 'ContentStatement', value: 'Hello' }]
+        }),
+        "CONTENT[ 'Hello' ]\n"
+      );
     });
   });
 
   describe('directives', function() {
     it('should parse block directives', function() {
-      equals(astFor('{{#* foo}}{{/foo}}'), 'DIRECTIVE BLOCK:\n  PATH:foo []\n  PROGRAM:\n');
+      equals(
+        astFor('{{#* foo}}{{/foo}}'),
+        'DIRECTIVE BLOCK:\n  PATH:foo []\n  PROGRAM:\n'
+      );
     });
     it('should parse directives', function() {
       equals(astFor('{{* foo}}'), '{{ DIRECTIVE PATH:foo [] }}\n');
     });
     it('should fail if directives have inverse', function() {
-      shouldThrow(function() {
-        astFor('{{#* foo}}{{^}}{{/foo}}');
-      }, Error, /Unexpected inverse/);
+      shouldThrow(
+        function() {
+          astFor('{{#* foo}}{{^}}{{/foo}}');
+        },
+        Error,
+        /Unexpected inverse/
+      );
     });
   });
 
   it('GH1024 - should track program location properly', function() {
-    var p = Handlebars.parse('\n'
-      + '  {{#if foo}}\n'
-      + '    {{bar}}\n'
-      + '       {{else}}    {{baz}}\n'
-      + '\n'
-      + '     {{/if}}\n'
-      + '    ');
+    var p = Handlebars.parse(
+      '\n' +
+        '  {{#if foo}}\n' +
+        '    {{bar}}\n' +
+        '       {{else}}    {{baz}}\n' +
+        '\n' +
+        '     {{/if}}\n' +
+        '    '
+    );
 
     // We really need a deep equals but for now this should be stable...
-    equals(JSON.stringify(p.loc), JSON.stringify({
-      start: { line: 1, column: 0 },
-      end: { line: 7, column: 4 }
-    }));
-    equals(JSON.stringify(p.body[1].program.loc), JSON.stringify({
-      start: { line: 2, column: 13 },
-      end: { line: 4, column: 7 }
-    }));
-    equals(JSON.stringify(p.body[1].inverse.loc), JSON.stringify({
-      start: { line: 4, column: 15 },
-      end: { line: 6, column: 5 }
-    }));
+    equals(
+      JSON.stringify(p.loc),
+      JSON.stringify({
+        start: { line: 1, column: 0 },
+        end: { line: 7, column: 4 }
+      })
+    );
+    equals(
+      JSON.stringify(p.body[1].program.loc),
+      JSON.stringify({
+        start: { line: 2, column: 13 },
+        end: { line: 4, column: 7 }
+      })
+    );
+    equals(
+      JSON.stringify(p.body[1].inverse.loc),
+      JSON.stringify({
+        start: { line: 4, column: 15 },
+        end: { line: 6, column: 5 }
+      })
+    );
   });
 });
diff --git a/spec/partials.js b/spec/partials.js
index 79f1dc881..d00d4147e 100644
--- a/spec/partials.js
+++ b/spec/partials.js
@@ -2,115 +2,224 @@ describe('partials', function() {
   it('basic partials', function() {
     var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
     var partial = '{{name}} ({{url}}) ';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial},, false], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
+    );
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }, , false],
+      true,
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
+    );
   });
 
   it('dynamic partials', function() {
     var string = 'Dudes: {{#dudes}}{{> (partial)}}{{/dudes}}';
     var partial = '{{name}} ({{url}}) ';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
     var helpers = {
       partial: function() {
         return 'dude';
       }
     };
-    shouldCompileToWithPartials(string, [hash, helpers, {dude: partial}], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
-    shouldCompileToWithPartials(string, [hash, helpers, {dude: partial},, false], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
+    shouldCompileToWithPartials(
+      string,
+      [hash, helpers, { dude: partial }],
+      true,
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
+    );
+    shouldCompileToWithPartials(
+      string,
+      [hash, helpers, { dude: partial }, , false],
+      true,
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
+    );
   });
   it('failing dynamic partials', function() {
     var string = 'Dudes: {{#dudes}}{{> (partial)}}{{/dudes}}';
     var partial = '{{name}} ({{url}}) ';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
     var helpers = {
       partial: function() {
         return 'missing';
       }
     };
-    shouldThrow(function() {
-      shouldCompileToWithPartials(string, [hash, helpers, {dude: partial}], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
-    }, Handlebars.Exception, 'The partial missing could not be found');
+    shouldThrow(
+      function() {
+        shouldCompileToWithPartials(
+          string,
+          [hash, helpers, { dude: partial }],
+          true,
+          'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
+        );
+      },
+      Handlebars.Exception,
+      'The partial missing could not be found'
+    );
   });
 
   it('partials with context', function() {
     var string = 'Dudes: {{>dude dudes}}';
     var partial = '{{#this}}{{name}} ({{url}}) {{/this}}';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
-                    'Partials can be passed a context');
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
+      'Partials can be passed a context'
+    );
   });
 
   it('partials with no context', function() {
     var partial = '{{name}} ({{url}}) ';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
     shouldCompileToWithPartials(
-        'Dudes: {{#dudes}}{{>dude}}{{/dudes}}',
-        [hash, {}, {dude: partial}, {explicitPartialContext: true}],
-        true,
-        'Dudes:  ()  () ');
+      'Dudes: {{#dudes}}{{>dude}}{{/dudes}}',
+      [hash, {}, { dude: partial }, { explicitPartialContext: true }],
+      true,
+      'Dudes:  ()  () '
+    );
     shouldCompileToWithPartials(
-        'Dudes: {{#dudes}}{{>dude name="foo"}}{{/dudes}}',
-        [hash, {}, {dude: partial}, {explicitPartialContext: true}],
-        true,
-        'Dudes: foo () foo () ');
+      'Dudes: {{#dudes}}{{>dude name="foo"}}{{/dudes}}',
+      [hash, {}, { dude: partial }, { explicitPartialContext: true }],
+      true,
+      'Dudes: foo () foo () '
+    );
   });
 
   it('partials with string context', function() {
     var string = 'Dudes: {{>dude "dudes"}}';
     var partial = '{{.}}';
     var hash = {};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes: dudes');
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes: dudes'
+    );
   });
 
   it('partials with undefined context', function() {
     var string = 'Dudes: {{>dude dudes}}';
     var partial = '{{foo}} Empty';
     var hash = {};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes:  Empty');
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes:  Empty'
+    );
   });
 
   it('partials with duplicate parameters', function() {
-    shouldThrow(function() {
-      CompilerContext.compile('Dudes: {{>dude dudes foo bar=baz}}');
-    }, Error, 'Unsupported number of partial arguments: 2 - 1:7');
+    shouldThrow(
+      function() {
+        CompilerContext.compile('Dudes: {{>dude dudes foo bar=baz}}');
+      },
+      Error,
+      'Unsupported number of partial arguments: 2 - 1:7'
+    );
   });
 
   it('partials with parameters', function() {
     var string = 'Dudes: {{#dudes}}{{> dude others=..}}{{/dudes}}';
     var partial = '{{others.foo}}{{name}} ({{url}}) ';
-    var hash = {foo: 'bar', dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes: barYehuda (http://yehuda) barAlan (http://alan) ',
-                    'Basic partials output based on current context.');
+    var hash = {
+      foo: 'bar',
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes: barYehuda (http://yehuda) barAlan (http://alan) ',
+      'Basic partials output based on current context.'
+    );
   });
 
   it('partial in a partial', function() {
     var string = 'Dudes: {{#dudes}}{{>dude}}{{/dudes}}';
     var dude = '{{name}} {{> url}} ';
     var url = '<a href="{{url}}">{{url}}</a>';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: dude, url: url}], true, 'Dudes: Yehuda <a href="http://yehuda">http://yehuda</a> Alan <a href="http://alan">http://alan</a> ', 'Partials are rendered inside of other partials');
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: dude, url: url }],
+      true,
+      'Dudes: Yehuda <a href="http://yehuda">http://yehuda</a> Alan <a href="http://alan">http://alan</a> ',
+      'Partials are rendered inside of other partials'
+    );
   });
 
   it('rendering undefined partial throws an exception', function() {
-    shouldThrow(function() {
-      var template = CompilerContext.compile('{{> whatever}}');
-      template();
-    }, Handlebars.Exception, 'The partial whatever could not be found');
+    shouldThrow(
+      function() {
+        var template = CompilerContext.compile('{{> whatever}}');
+        template();
+      },
+      Handlebars.Exception,
+      'The partial whatever could not be found'
+    );
   });
 
   it('registering undefined partial throws an exception', function() {
-    shouldThrow(function() {
-      var undef;
-      handlebarsEnv.registerPartial('undefined_test', undef);
-    }, Handlebars.Exception, 'Attempting to register a partial called "undefined_test" as undefined');
+    shouldThrow(
+      function() {
+        var undef;
+        handlebarsEnv.registerPartial('undefined_test', undef);
+      },
+      Handlebars.Exception,
+      'Attempting to register a partial called "undefined_test" as undefined'
+    );
   });
 
   it('rendering template partial in vm mode throws an exception', function() {
-    shouldThrow(function() {
-      var template = CompilerContext.compile('{{> whatever}}');
-      template();
-    }, Handlebars.Exception, 'The partial whatever could not be found');
+    shouldThrow(
+      function() {
+        var template = CompilerContext.compile('{{> whatever}}');
+        template();
+      },
+      Handlebars.Exception,
+      'The partial whatever could not be found'
+    );
   });
 
   it('rendering function partial in vm mode', function() {
@@ -118,30 +227,57 @@ describe('partials', function() {
     function partial(context) {
       return context.name + ' (' + context.url + ') ';
     }
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileTo(string, [hash, {}, {dude: partial}], 'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
-                    'Function partials output based in VM.');
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileTo(
+      string,
+      [hash, {}, { dude: partial }],
+      'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
+      'Function partials output based in VM.'
+    );
   });
 
   it('GH-14: a partial preceding a selector', function() {
     var string = 'Dudes: {{>dude}} {{anotherDude}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: dude}], true, 'Dudes: Jeepers Creepers', 'Regular selectors can follow a partial');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: dude }],
+      true,
+      'Dudes: Jeepers Creepers',
+      'Regular selectors can follow a partial'
+    );
   });
 
   it('Partials with slash paths', function() {
     var string = 'Dudes: {{> shared/dude}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'shared/dude': dude}], true, 'Dudes: Jeepers', 'Partials can use literal paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { 'shared/dude': dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal paths'
+    );
   });
 
   it('Partials with slash and point paths', function() {
     var string = 'Dudes: {{> shared/dude.thing}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'shared/dude.thing': dude}], true, 'Dudes: Jeepers', 'Partials can use literal with points in paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { 'shared/dude.thing': dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal with points in paths'
+    );
   });
 
   it('Global Partials', function() {
@@ -149,8 +285,14 @@ describe('partials', function() {
 
     var string = 'Dudes: {{> shared/dude}} {{> globalTest}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'shared/dude': dude}], true, 'Dudes: Jeepers Creepers', 'Partials can use globals or passed');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { 'shared/dude': dude }],
+      true,
+      'Dudes: Jeepers Creepers',
+      'Partials can use globals or passed'
+    );
 
     handlebarsEnv.unregisterPartial('globalTest');
     equals(handlebarsEnv.partials.globalTest, undefined);
@@ -163,51 +305,95 @@ describe('partials', function() {
     });
 
     var string = 'Dudes: {{> shared/dude}} {{> globalTest}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash], true, 'Dudes: Jeepers Creepers', 'Partials can use globals or passed');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash],
+      true,
+      'Dudes: Jeepers Creepers',
+      'Partials can use globals or passed'
+    );
   });
 
   it('Partials with integer path', function() {
     var string = 'Dudes: {{> 404}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {404: dude}], true, 'Dudes: Jeepers', 'Partials can use literal paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { 404: dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal paths'
+    );
   });
 
   it('Partials with complex path', function() {
     var string = 'Dudes: {{> 404/asdf?.bar}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'404/asdf?.bar': dude}], true, 'Dudes: Jeepers', 'Partials can use literal paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { '404/asdf?.bar': dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal paths'
+    );
   });
 
   it('Partials with escaped', function() {
     var string = 'Dudes: {{> [+404/asdf?.bar]}}';
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'+404/asdf?.bar': dude}], true, 'Dudes: Jeepers', 'Partials can use literal paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { '+404/asdf?.bar': dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal paths'
+    );
   });
 
   it('Partials with string', function() {
-    var string = 'Dudes: {{> \'+404/asdf?.bar\'}}';
+    var string = "Dudes: {{> '+404/asdf?.bar'}}";
     var dude = '{{name}}';
-    var hash = {name: 'Jeepers', anotherDude: 'Creepers'};
-    shouldCompileToWithPartials(string, [hash, {}, {'+404/asdf?.bar': dude}], true, 'Dudes: Jeepers', 'Partials can use literal paths');
+    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { '+404/asdf?.bar': dude }],
+      true,
+      'Dudes: Jeepers',
+      'Partials can use literal paths'
+    );
   });
 
   it('should handle empty partial', function() {
     var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
     var partial = '';
-    var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-    shouldCompileToWithPartials(string, [hash, {}, {dude: partial}], true, 'Dudes: ');
+    var hash = {
+      dudes: [
+        { name: 'Yehuda', url: 'http://yehuda' },
+        { name: 'Alan', url: 'http://alan' }
+      ]
+    };
+    shouldCompileToWithPartials(
+      string,
+      [hash, {}, { dude: partial }],
+      true,
+      'Dudes: '
+    );
   });
 
   it('throw on missing partial', function() {
     var compile = handlebarsEnv.compile;
     handlebarsEnv.compile = undefined;
-    shouldThrow(function() {
-      shouldCompileTo('{{> dude}}', [{}, {}, {dude: 'fail'}], '');
-    }, Error, /The partial dude could not be compiled/);
+    shouldThrow(
+      function() {
+        shouldCompileTo('{{> dude}}', [{}, {}, { dude: 'fail' }], '');
+      },
+      Error,
+      /The partial dude could not be compiled/
+    );
     handlebarsEnv.compile = compile;
   });
 
@@ -217,224 +403,309 @@ describe('partials', function() {
         '{{#> dude}}success{{/dude}}',
         [{}, {}, {}],
         true,
-        'success');
+        'success'
+      );
     });
     it('should execute default block with proper context', function() {
       shouldCompileToWithPartials(
         '{{#> dude context}}{{value}}{{/dude}}',
-        [{context: {value: 'success'}}, {}, {}],
+        [{ context: { value: 'success' } }, {}, {}],
         true,
-        'success');
+        'success'
+      );
     });
     it('should propagate block parameters to default block', function() {
       shouldCompileToWithPartials(
         '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}',
-        [{context: {value: 'success'}}, {}, {}],
+        [{ context: { value: 'success' } }, {}, {}],
         true,
-        'success');
+        'success'
+      );
     });
 
     it('should not use partial block if partial exists', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}fail{{/dude}}',
-        [{}, {}, {dude: 'success'}],
+        [{}, {}, { dude: 'success' }],
         true,
-        'success');
+        'success'
+      );
     });
 
     it('should render block from partial', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}success{{/dude}}',
-        [{}, {}, {dude: '{{> @partial-block }}'}],
+        [{}, {}, { dude: '{{> @partial-block }}' }],
         true,
-        'success');
+        'success'
+      );
     });
     it('should be able to render the partial-block twice', function() {
       shouldCompileToWithPartials(
-          '{{#> dude}}success{{/dude}}',
-          [{}, {}, {dude: '{{> @partial-block }} {{> @partial-block }}'}],
-          true,
-          'success success');
+        '{{#> dude}}success{{/dude}}',
+        [{}, {}, { dude: '{{> @partial-block }} {{> @partial-block }}' }],
+        true,
+        'success success'
+      );
     });
     it('should render block from partial with context', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}{{value}}{{/dude}}',
-        [{context: {value: 'success'}}, {}, {dude: '{{#with context}}{{> @partial-block }}{{/with}}'}],
+        [
+          { context: { value: 'success' } },
+          {},
+          { dude: '{{#with context}}{{> @partial-block }}{{/with}}' }
+        ],
         true,
-        'success');
+        'success'
+      );
     });
 
     it('should be able to access the @data frame from a partial-block', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}in-block: {{@root/value}}{{/dude}}',
-        [{value: 'success'}, {}, {dude: '<code>before-block: {{@root/value}} {{>   @partial-block }}</code>'}],
+        [
+          { value: 'success' },
+          {},
+          {
+            dude:
+              '<code>before-block: {{@root/value}} {{>   @partial-block }}</code>'
+          }
+        ],
         true,
-        '<code>before-block: success in-block: success</code>');
+        '<code>before-block: success in-block: success</code>'
+      );
     });
 
     it('should allow the #each-helper to be used along with partial-blocks', function() {
       shouldCompileToWithPartials(
         '<template>{{#> list value}}value = {{.}}{{/list}}</template>',
         [
-          {value: ['a', 'b', 'c']},
+          { value: ['a', 'b', 'c'] },
           {},
           {
-            list: '<list>{{#each .}}<item>{{> @partial-block}}</item>{{/each}}</list>'
+            list:
+              '<list>{{#each .}}<item>{{> @partial-block}}</item>{{/each}}</list>'
           }
         ],
         true,
-        '<template><list><item>value = a</item><item>value = b</item><item>value = c</item></list></template>');
+        '<template><list><item>value = a</item><item>value = b</item><item>value = c</item></list></template>'
+      );
     });
     it('should render block from partial with context (twice)', function() {
       shouldCompileToWithPartials(
-          '{{#> dude}}{{value}}{{/dude}}',
-          [
-            {context: {value: 'success'}},
-            {},
-            {
-              dude: '{{#with context}}{{> @partial-block }} {{> @partial-block }}{{/with}}'
-            }
-          ],
-          true,
-          'success success');
+        '{{#> dude}}{{value}}{{/dude}}',
+        [
+          { context: { value: 'success' } },
+          {},
+          {
+            dude:
+              '{{#with context}}{{> @partial-block }} {{> @partial-block }}{{/with}}'
+          }
+        ],
+        true,
+        'success success'
+      );
     });
     it('should render block from partial with context', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}{{../context/value}}{{/dude}}',
-        [{context: {value: 'success'}}, {}, {dude: '{{#with context}}{{> @partial-block }}{{/with}}'}],
+        [
+          { context: { value: 'success' } },
+          {},
+          { dude: '{{#with context}}{{> @partial-block }}{{/with}}' }
+        ],
         true,
-        'success');
+        'success'
+      );
     });
     it('should render block from partial with block params', function() {
       shouldCompileToWithPartials(
         '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}',
-        [{context: {value: 'success'}}, {}, {dude: '{{> @partial-block }}'}],
+        [
+          { context: { value: 'success' } },
+          {},
+          { dude: '{{> @partial-block }}' }
+        ],
         true,
-        'success');
+        'success'
+      );
     });
     it('should render nested partial blocks', function() {
       shouldCompileToWithPartials(
         '<template>{{#> outer}}{{value}}{{/outer}}</template>',
         [
-          {value: 'success'},
+          { value: 'success' },
           {},
           {
-            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}</outer>',
+            outer:
+              '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}</outer>',
             nested: '<nested>{{> @partial-block}}</nested>'
           }
         ],
         true,
-        '<template><outer><nested><outer-block>success</outer-block></nested></outer></template>');
+        '<template><outer><nested><outer-block>success</outer-block></nested></outer></template>'
+      );
     });
     it('should render nested partial blocks at different nesting levels', function() {
       shouldCompileToWithPartials(
         '<template>{{#> outer}}{{value}}{{/outer}}</template>',
         [
-          {value: 'success'},
+          { value: 'success' },
           {},
           {
-            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}</outer>',
+            outer:
+              '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}</outer>',
             nested: '<nested>{{> @partial-block}}</nested>'
           }
         ],
         true,
-        '<template><outer><nested><outer-block>success</outer-block></nested>success</outer></template>');
+        '<template><outer><nested><outer-block>success</outer-block></nested>success</outer></template>'
+      );
     });
     it('should render nested partial blocks at different nesting levels (twice)', function() {
       shouldCompileToWithPartials(
         '<template>{{#> outer}}{{value}}{{/outer}}</template>',
         [
-          {value: 'success'},
+          { value: 'success' },
           {},
           {
-            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}+{{> @partial-block}}</outer>',
+            outer:
+              '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}+{{> @partial-block}}</outer>',
             nested: '<nested>{{> @partial-block}}</nested>'
           }
         ],
         true,
-        '<template><outer><nested><outer-block>success success</outer-block></nested>success+success</outer></template>');
+        '<template><outer><nested><outer-block>success success</outer-block></nested>success+success</outer></template>'
+      );
     });
     it('should render nested partial blocks (twice at each level)', function() {
       shouldCompileToWithPartials(
         '<template>{{#> outer}}{{value}}{{/outer}}</template>',
         [
-          {value: 'success'},
+          { value: 'success' },
           {},
           {
-            outer: '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}</outer>',
+            outer:
+              '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}</outer>',
             nested: '<nested>{{> @partial-block}}{{> @partial-block}}</nested>'
           }
         ],
         true,
         '<template><outer>' +
-        '<nested><outer-block>success success</outer-block><outer-block>success success</outer-block></nested>' +
-        '</outer></template>');
+          '<nested><outer-block>success success</outer-block><outer-block>success success</outer-block></nested>' +
+          '</outer></template>'
+      );
     });
   });
 
   describe('inline partials', function() {
     it('should define inline partials for template', function() {
-      shouldCompileTo('{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}', {}, 'success');
+      shouldCompileTo(
+        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
+        {},
+        'success'
+      );
     });
     it('should overwrite multiple partials in the same template', function() {
-      shouldCompileTo('{{#*inline "myPartial"}}fail{{/inline}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}', {}, 'success');
+      shouldCompileTo(
+        '{{#*inline "myPartial"}}fail{{/inline}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
+        {},
+        'success'
+      );
     });
     it('should define inline partials for block', function() {
-      shouldCompileTo('{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}', {}, 'success');
-      shouldThrow(function() {
-        shouldCompileTo('{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{/with}}{{> myPartial}}', {}, 'success');
-      }, Error, /myPartial could not/);
+      shouldCompileTo(
+        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}',
+        {},
+        'success'
+      );
+      shouldThrow(
+        function() {
+          shouldCompileTo(
+            '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{/with}}{{> myPartial}}',
+            {},
+            'success'
+          );
+        },
+        Error,
+        /myPartial could not/
+      );
     });
     it('should override global partials', function() {
-      shouldCompileTo('{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}', {hash: {}, partials: {myPartial: function() { return 'fail'; }}}, 'success');
+      shouldCompileTo(
+        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
+        {
+          hash: {},
+          partials: {
+            myPartial: function() {
+              return 'fail';
+            }
+          }
+        },
+        'success'
+      );
     });
     it('should override template partials', function() {
-      shouldCompileTo('{{#*inline "myPartial"}}fail{{/inline}}{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}', {}, 'success');
+      shouldCompileTo(
+        '{{#*inline "myPartial"}}fail{{/inline}}{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}',
+        {},
+        'success'
+      );
     });
     it('should override partials down the entire stack', function() {
-      shouldCompileTo('{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{#with .}}{{#with .}}{{> myPartial}}{{/with}}{{/with}}{{/with}}', {}, 'success');
+      shouldCompileTo(
+        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{#with .}}{{#with .}}{{> myPartial}}{{/with}}{{/with}}{{/with}}',
+        {},
+        'success'
+      );
     });
 
     it('should define inline partials for partial call', function() {
       shouldCompileToWithPartials(
         '{{#*inline "myPartial"}}success{{/inline}}{{> dude}}',
-        [{}, {}, {dude: '{{> myPartial }}'}],
+        [{}, {}, { dude: '{{> myPartial }}' }],
         true,
-        'success');
+        'success'
+      );
     });
     it('should define inline partials in partial block call', function() {
       shouldCompileToWithPartials(
         '{{#> dude}}{{#*inline "myPartial"}}success{{/inline}}{{/dude}}',
-        [{}, {}, {dude: '{{> myPartial }}'}],
+        [{}, {}, { dude: '{{> myPartial }}' }],
         true,
-        'success');
+        'success'
+      );
     });
     it('should render nested inline partials', function() {
       shouldCompileToWithPartials(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
-        '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
-        '{{#>outer}}{{value}}{{/outer}}',
-        [{value: 'success'}, {}, {}],
+          '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
+          '{{#>outer}}{{value}}{{/outer}}',
+        [{ value: 'success' }, {}, {}],
         true,
-        '<inner><outer-block>success</outer-block></inner>');
+        '<inner><outer-block>success</outer-block></inner>'
+      );
     });
     it('should render nested inline partials with partial-blocks on different nesting levels', function() {
       shouldCompileToWithPartials(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{>@partial-block}}{{/inline}}' +
-        '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
-        '{{#>outer}}{{value}}{{/outer}}',
-        [{value: 'success'}, {}, {}],
+          '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
+          '{{#>outer}}{{value}}{{/outer}}',
+        [{ value: 'success' }, {}, {}],
         true,
-        '<inner><outer-block>success</outer-block></inner>success');
+        '<inner><outer-block>success</outer-block></inner>success'
+      );
     });
     it('should render nested inline partials (twice at each level)', function() {
       shouldCompileToWithPartials(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}} {{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
-        '{{#*inline "inner"}}<inner>{{>@partial-block}}{{>@partial-block}}</inner>{{/inline}}' +
-        '{{#>outer}}{{value}}{{/outer}}',
-        [{value: 'success'}, {}, {}],
+          '{{#*inline "inner"}}<inner>{{>@partial-block}}{{>@partial-block}}</inner>{{/inline}}' +
+          '{{#>outer}}{{value}}{{/outer}}',
+        [{ value: 'success' }, {}, {}],
         true,
-        '<inner><outer-block>success success</outer-block><outer-block>success success</outer-block></inner>');
+        '<inner><outer-block>success success</outer-block><outer-block>success success</outer-block></inner>'
+      );
     });
   });
 
@@ -442,8 +713,8 @@ describe('partials', function() {
     if (Handlebars.compile) {
       var env = Handlebars.create();
       env.registerPartial('partial', '{{foo}}');
-      var template = env.compile('{{foo}} {{> partial}}', {noEscape: true});
-      equal(template({foo: '<'}), '< <');
+      var template = env.compile('{{foo}} {{> partial}}', { noEscape: true });
+      equal(template({ foo: '<' }), '< <');
     }
   });
 
@@ -451,25 +722,52 @@ describe('partials', function() {
     it('indented partials', function() {
       var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
       var dude = '{{name}}\n';
-      var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: dude}], true,
-            'Dudes:\n  Yehuda\n  Alan\n');
+      var hash = {
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: dude }],
+        true,
+        'Dudes:\n  Yehuda\n  Alan\n'
+      );
     });
     it('nested indented partials', function() {
       var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
       var dude = '{{name}}\n {{> url}}';
       var url = '{{url}}!\n';
-      var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: dude, url: url}], true,
-            'Dudes:\n  Yehuda\n   http://yehuda!\n  Alan\n   http://alan!\n');
+      var hash = {
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: dude, url: url }],
+        true,
+        'Dudes:\n  Yehuda\n   http://yehuda!\n  Alan\n   http://alan!\n'
+      );
     });
     it('prevent nested indented partials', function() {
       var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
       var dude = '{{name}}\n {{> url}}';
       var url = '{{url}}!\n';
-      var hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: dude, url: url}, {preventIndent: true}], true,
-            'Dudes:\n  Yehuda\n http://yehuda!\n  Alan\n http://alan!\n');
+      var hash = {
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: dude, url: url }, { preventIndent: true }],
+        true,
+        'Dudes:\n  Yehuda\n http://yehuda!\n  Alan\n http://alan!\n'
+      );
     });
   });
 
@@ -477,26 +775,70 @@ describe('partials', function() {
     it('partials can access parents', function() {
       var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
       var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {root: 'yes', dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: partial}, true], true, 'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes ');
+      var hash = {
+        root: 'yes',
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: partial }, true],
+        true,
+        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+      );
     });
     it('partials can access parents with custom context', function() {
       var string = 'Dudes: {{#dudes}}{{> dude "test"}}{{/dudes}}';
       var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {root: 'yes', dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: partial}, true], true, 'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes ');
+      var hash = {
+        root: 'yes',
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: partial }, true],
+        true,
+        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+      );
     });
     it('partials can access parents without data', function() {
       var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
       var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {root: 'yes', dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: partial}, true, false], true, 'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes ');
+      var hash = {
+        root: 'yes',
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: partial }, true, false],
+        true,
+        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+      );
     });
     it('partials inherit compat', function() {
       var string = 'Dudes: {{> dude}}';
       var partial = '{{#dudes}}{{name}} ({{url}}) {{root}} {{/dudes}}';
-      var hash = {root: 'yes', dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
-      shouldCompileToWithPartials(string, [hash, {}, {dude: partial}, true], true, 'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes ');
+      var hash = {
+        root: 'yes',
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      };
+      shouldCompileToWithPartials(
+        string,
+        [hash, {}, { dude: partial }, true],
+        true,
+        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+      );
     });
   });
 });
diff --git a/spec/precompiler.js b/spec/precompiler.js
index 9f2a6442b..2261023cc 100644
--- a/spec/precompiler.js
+++ b/spec/precompiler.js
@@ -6,27 +6,24 @@ describe('precompiler', function() {
   }
 
   var Handlebars = require('../lib'),
-      Precompiler = require('../dist/cjs/precompiler'),
-      fs = require('fs'),
-      uglify = require('uglify-js');
+    Precompiler = require('../dist/cjs/precompiler'),
+    fs = require('fs'),
+    uglify = require('uglify-js');
 
   var log,
-      logFunction,
-      errorLog,
-      errorLogFunction,
-
-      precompile,
-      minify,
-
-      emptyTemplate = {
-        path: __dirname + '/artifacts/empty.handlebars',
-        name: 'empty',
-        source: ''
-      },
-
-      file,
-      content,
-      writeFileSync;
+    logFunction,
+    errorLog,
+    errorLogFunction,
+    precompile,
+    minify,
+    emptyTemplate = {
+      path: __dirname + '/artifacts/empty.handlebars',
+      name: 'empty',
+      source: ''
+    },
+    file,
+    content,
+    writeFileSync;
 
   /**
    * Mock the Module.prototype.require-function such that an error is thrown, when "uglify-js" is loaded.
@@ -87,102 +84,166 @@ describe('precompiler', function() {
   });
 
   it('should output version', function() {
-    Precompiler.cli({templates: [], version: true});
+    Precompiler.cli({ templates: [], version: true });
     equals(log, Handlebars.VERSION);
   });
   it('should throw if lacking templates', function() {
-    shouldThrow(function() {
-      Precompiler.cli({templates: []});
-    }, Handlebars.Exception, 'Must define at least one template or directory.');
+    shouldThrow(
+      function() {
+        Precompiler.cli({ templates: [] });
+      },
+      Handlebars.Exception,
+      'Must define at least one template or directory.'
+    );
   });
   it('should handle empty/filtered directories', function() {
-    Precompiler.cli({hasDirectory: true, templates: []});
+    Precompiler.cli({ hasDirectory: true, templates: [] });
     // Success is not throwing
   });
   it('should throw when combining simple and minimized', function() {
-    shouldThrow(function() {
-      Precompiler.cli({templates: [__dirname], simple: true, min: true});
-    }, Handlebars.Exception, 'Unable to minimize simple output');
+    shouldThrow(
+      function() {
+        Precompiler.cli({ templates: [__dirname], simple: true, min: true });
+      },
+      Handlebars.Exception,
+      'Unable to minimize simple output'
+    );
   });
   it('should throw when combining simple and multiple templates', function() {
-    shouldThrow(function() {
-      Precompiler.cli({templates: [__dirname + '/artifacts/empty.handlebars', __dirname + '/artifacts/empty.handlebars'], simple: true});
-    }, Handlebars.Exception, 'Unable to output multiple templates in simple mode');
+    shouldThrow(
+      function() {
+        Precompiler.cli({
+          templates: [
+            __dirname + '/artifacts/empty.handlebars',
+            __dirname + '/artifacts/empty.handlebars'
+          ],
+          simple: true
+        });
+      },
+      Handlebars.Exception,
+      'Unable to output multiple templates in simple mode'
+    );
   });
   it('should throw when missing name', function() {
-    shouldThrow(function() {
-      Precompiler.cli({templates: [{source: ''}], amd: true});
-    }, Handlebars.Exception, 'Name missing for template');
+    shouldThrow(
+      function() {
+        Precompiler.cli({ templates: [{ source: '' }], amd: true });
+      },
+      Handlebars.Exception,
+      'Name missing for template'
+    );
   });
   it('should throw when combining simple and directories', function() {
-    shouldThrow(function() {
-      Precompiler.cli({hasDirectory: true, templates: [1], simple: true});
-    }, Handlebars.Exception, 'Unable to output multiple templates in simple mode');
+    shouldThrow(
+      function() {
+        Precompiler.cli({ hasDirectory: true, templates: [1], simple: true });
+      },
+      Handlebars.Exception,
+      'Unable to output multiple templates in simple mode'
+    );
   });
 
   it('should output simple templates', function() {
-    Handlebars.precompile = function() { return 'simple'; };
-    Precompiler.cli({templates: [emptyTemplate], simple: true});
+    Handlebars.precompile = function() {
+      return 'simple';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], simple: true });
     equal(log, 'simple\n');
   });
   it('should default to simple templates', function() {
-    Handlebars.precompile = function() { return 'simple'; };
-    Precompiler.cli({templates: [{source: ''}]});
+    Handlebars.precompile = function() {
+      return 'simple';
+    };
+    Precompiler.cli({ templates: [{ source: '' }] });
     equal(log, 'simple\n');
   });
   it('should output amd templates', function() {
-    Handlebars.precompile = function() { return 'amd'; };
-    Precompiler.cli({templates: [emptyTemplate], amd: true});
+    Handlebars.precompile = function() {
+      return 'amd';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], amd: true });
     equal(/template\(amd\)/.test(log), true);
   });
   it('should output multiple amd', function() {
-    Handlebars.precompile = function() { return 'amd'; };
-    Precompiler.cli({templates: [emptyTemplate, emptyTemplate], amd: true, namespace: 'foo'});
+    Handlebars.precompile = function() {
+      return 'amd';
+    };
+    Precompiler.cli({
+      templates: [emptyTemplate, emptyTemplate],
+      amd: true,
+      namespace: 'foo'
+    });
     equal(/templates = foo = foo \|\|/.test(log), true);
     equal(/return templates/.test(log), true);
     equal(/template\(amd\)/.test(log), true);
   });
   it('should output amd partials', function() {
-    Handlebars.precompile = function() { return 'amd'; };
-    Precompiler.cli({templates: [emptyTemplate], amd: true, partial: true});
+    Handlebars.precompile = function() {
+      return 'amd';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], amd: true, partial: true });
     equal(/return Handlebars\.partials\['empty'\]/.test(log), true);
     equal(/template\(amd\)/.test(log), true);
   });
   it('should output multiple amd partials', function() {
-    Handlebars.precompile = function() { return 'amd'; };
-    Precompiler.cli({templates: [emptyTemplate, emptyTemplate], amd: true, partial: true});
+    Handlebars.precompile = function() {
+      return 'amd';
+    };
+    Precompiler.cli({
+      templates: [emptyTemplate, emptyTemplate],
+      amd: true,
+      partial: true
+    });
     equal(/return Handlebars\.partials\[/.test(log), false);
     equal(/template\(amd\)/.test(log), true);
   });
   it('should output commonjs templates', function() {
-    Handlebars.precompile = function() { return 'commonjs'; };
-    Precompiler.cli({templates: [emptyTemplate], commonjs: true});
+    Handlebars.precompile = function() {
+      return 'commonjs';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], commonjs: true });
     equal(/template\(commonjs\)/.test(log), true);
   });
 
   it('should set data flag', function() {
-    Handlebars.precompile = function(data, options) { equal(options.data, true); return 'simple'; };
-    Precompiler.cli({templates: [emptyTemplate], simple: true, data: true});
+    Handlebars.precompile = function(data, options) {
+      equal(options.data, true);
+      return 'simple';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], simple: true, data: true });
     equal(log, 'simple\n');
   });
 
   it('should set known helpers', function() {
-    Handlebars.precompile = function(data, options) { equal(options.knownHelpers.foo, true); return 'simple'; };
-    Precompiler.cli({templates: [emptyTemplate], simple: true, known: 'foo'});
+    Handlebars.precompile = function(data, options) {
+      equal(options.knownHelpers.foo, true);
+      return 'simple';
+    };
+    Precompiler.cli({ templates: [emptyTemplate], simple: true, known: 'foo' });
     equal(log, 'simple\n');
   });
   it('should output to file system', function() {
-    Handlebars.precompile = function() { return 'simple'; };
-    Precompiler.cli({templates: [emptyTemplate], simple: true, output: 'file!'});
+    Handlebars.precompile = function() {
+      return 'simple';
+    };
+    Precompiler.cli({
+      templates: [emptyTemplate],
+      simple: true,
+      output: 'file!'
+    });
     equal(file, 'file!');
     equal(content, 'simple\n');
     equal(log, '');
   });
 
   it('should output minimized templates', function() {
-    Handlebars.precompile = function() { return 'amd'; };
-    uglify.minify = function() { return {code: 'min'}; };
-    Precompiler.cli({templates: [emptyTemplate], min: true});
+    Handlebars.precompile = function() {
+      return 'amd';
+    };
+    uglify.minify = function() {
+      return { code: 'min' };
+    };
+    Precompiler.cli({ templates: [emptyTemplate], min: true });
     equal(log, 'min');
   });
 
@@ -191,8 +252,10 @@ describe('precompiler', function() {
     error.code = 'MODULE_NOT_FOUND';
     mockRequireUglify(error, function() {
       var Precompiler = require('../dist/cjs/precompiler');
-      Handlebars.precompile = function() { return 'amd'; };
-      Precompiler.cli({templates: [emptyTemplate], min: true});
+      Handlebars.precompile = function() {
+        return 'amd';
+      };
+      Precompiler.cli({ templates: [emptyTemplate], min: true });
       equal(/template\(amd\)/.test(log), true);
       equal(/\n/.test(log), true);
       equal(/Code minimization is disabled/.test(errorLog), true);
@@ -201,23 +264,33 @@ describe('precompiler', function() {
 
   it('should fail on errors (other than missing module) while loading uglify-js', function() {
     mockRequireUglify(new Error('Mock Error'), function() {
-      shouldThrow(function() {
-        var Precompiler = require('../dist/cjs/precompiler');
-        Handlebars.precompile = function() { return 'amd'; };
-        Precompiler.cli({templates: [emptyTemplate], min: true});
-      }, Error, 'Mock Error');
+      shouldThrow(
+        function() {
+          var Precompiler = require('../dist/cjs/precompiler');
+          Handlebars.precompile = function() {
+            return 'amd';
+          };
+          Precompiler.cli({ templates: [emptyTemplate], min: true });
+        },
+        Error,
+        'Mock Error'
+      );
     });
   });
 
   it('should output map', function() {
-    Precompiler.cli({templates: [emptyTemplate], map: 'foo.js.map'});
+    Precompiler.cli({ templates: [emptyTemplate], map: 'foo.js.map' });
 
     equal(file, 'foo.js.map');
     equal(log.match(/sourceMappingURL=/g).length, 1);
   });
 
   it('should output map', function() {
-    Precompiler.cli({templates: [emptyTemplate], min: true, map: 'foo.js.map'});
+    Precompiler.cli({
+      templates: [emptyTemplate],
+      min: true,
+      map: 'foo.js.map'
+    });
 
     equal(file, 'foo.js.map');
     equal(log.match(/sourceMappingURL=/g).length, 1);
@@ -225,35 +298,48 @@ describe('precompiler', function() {
 
   describe('#loadTemplates', function() {
     it('should throw on missing template', function(done) {
-      Precompiler.loadTemplates({files: ['foo']}, function(err) {
+      Precompiler.loadTemplates({ files: ['foo'] }, function(err) {
         equal(err.message, 'Unable to open template file "foo"');
         done();
       });
     });
     it('should enumerate directories by extension', function(done) {
-      Precompiler.loadTemplates({files: [__dirname + '/artifacts'], extension: 'hbs'}, function(err, opts) {
-        equal(opts.templates.length, 1);
-        equal(opts.templates[0].name, 'example_2');
-        done(err);
-      });
+      Precompiler.loadTemplates(
+        { files: [__dirname + '/artifacts'], extension: 'hbs' },
+        function(err, opts) {
+          equal(opts.templates.length, 1);
+          equal(opts.templates[0].name, 'example_2');
+          done(err);
+        }
+      );
     });
     it('should enumerate all templates by extension', function(done) {
-      Precompiler.loadTemplates({files: [__dirname + '/artifacts'], extension: 'handlebars'}, function(err, opts) {
-        equal(opts.templates.length, 3);
-        equal(opts.templates[0].name, 'bom');
-        equal(opts.templates[1].name, 'empty');
-        equal(opts.templates[2].name, 'example_1');
-        done(err);
-      });
+      Precompiler.loadTemplates(
+        { files: [__dirname + '/artifacts'], extension: 'handlebars' },
+        function(err, opts) {
+          equal(opts.templates.length, 3);
+          equal(opts.templates[0].name, 'bom');
+          equal(opts.templates[1].name, 'empty');
+          equal(opts.templates[2].name, 'example_1');
+          done(err);
+        }
+      );
     });
     it('should handle regular expression characters in extensions', function(done) {
-      Precompiler.loadTemplates({files: [__dirname + '/artifacts'], extension: 'hb(s'}, function(err) {
-        // Success is not throwing
-        done(err);
-      });
+      Precompiler.loadTemplates(
+        { files: [__dirname + '/artifacts'], extension: 'hb(s' },
+        function(err) {
+          // Success is not throwing
+          done(err);
+        }
+      );
     });
     it('should handle BOM', function(done) {
-      var opts = {files: [__dirname + '/artifacts/bom.handlebars'], extension: 'handlebars', bom: true};
+      var opts = {
+        files: [__dirname + '/artifacts/bom.handlebars'],
+        extension: 'handlebars',
+        bom: true
+      };
       Precompiler.loadTemplates(opts, function(err, opts) {
         equal(opts.templates[0].source, 'a');
         done(err);
@@ -261,7 +347,11 @@ describe('precompiler', function() {
     });
 
     it('should handle different root', function(done) {
-      var opts = {files: [__dirname + '/artifacts/empty.handlebars'], simple: true, root: 'foo/'};
+      var opts = {
+        files: [__dirname + '/artifacts/empty.handlebars'],
+        simple: true,
+        root: 'foo/'
+      };
       Precompiler.loadTemplates(opts, function(err, opts) {
         equal(opts.templates[0].name, __dirname + '/artifacts/empty');
         done(err);
@@ -269,7 +359,7 @@ describe('precompiler', function() {
     });
 
     it('should accept string inputs', function(done) {
-      var opts = {string: ''};
+      var opts = { string: '' };
       Precompiler.loadTemplates(opts, function(err, opts) {
         equal(opts.templates[0].name, undefined);
         equal(opts.templates[0].source, '');
@@ -277,7 +367,7 @@ describe('precompiler', function() {
       });
     });
     it('should accept string array inputs', function(done) {
-      var opts = {string: ['', 'bar'], name: ['beep', 'boop']};
+      var opts = { string: ['', 'bar'], name: ['beep', 'boop'] };
       Precompiler.loadTemplates(opts, function(err, opts) {
         equal(opts.templates[0].name, 'beep');
         equal(opts.templates[0].source, '');
@@ -288,7 +378,7 @@ describe('precompiler', function() {
     });
     it('should accept stdin input', function(done) {
       var stdin = require('mock-stdin').stdin();
-      Precompiler.loadTemplates({string: '-'}, function(err, opts) {
+      Precompiler.loadTemplates({ string: '-' }, function(err, opts) {
         equal(opts.templates[0].source, 'foo');
         done(err);
       });
@@ -297,9 +387,12 @@ describe('precompiler', function() {
       stdin.end();
     });
     it('error on name missing', function(done) {
-      var opts = {string: ['', 'bar']};
+      var opts = { string: ['', 'bar'] };
       Precompiler.loadTemplates(opts, function(err) {
-        equal(err.message, 'Number of names did not match the number of string inputs');
+        equal(
+          err.message,
+          'Number of names did not match the number of string inputs'
+        );
         done();
       });
     });
diff --git a/spec/regressions.js b/spec/regressions.js
index 3eccb2817..821c48dc2 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -1,93 +1,134 @@
 describe('Regressions', function() {
   it('GH-94: Cannot read property of undefined', function() {
     var data = {
-      'books': [{
-        'title': 'The origin of species',
-        'author': {
-          'name': 'Charles Darwin'
+      books: [
+        {
+          title: 'The origin of species',
+          author: {
+            name: 'Charles Darwin'
+          }
+        },
+        {
+          title: 'Lazarillo de Tormes'
         }
-      }, {
-        'title': 'Lazarillo de Tormes'
-      }]
+      ]
     };
     var string = '{{#books}}{{title}}{{author.name}}{{/books}}';
-    shouldCompileTo(string, data, 'The origin of speciesCharles DarwinLazarillo de Tormes',
-                    'Renders without an undefined property error');
+    shouldCompileTo(
+      string,
+      data,
+      'The origin of speciesCharles DarwinLazarillo de Tormes',
+      'Renders without an undefined property error'
+    );
   });
 
   it("GH-150: Inverted sections print when they shouldn't", function() {
     var string = '{{^set}}not set{{/set}} :: {{#set}}set{{/set}}';
 
-    shouldCompileTo(string, {}, 'not set :: ', "inverted sections run when property isn't present in context");
-    shouldCompileTo(string, {set: undefined}, 'not set :: ', 'inverted sections run when property is undefined');
-    shouldCompileTo(string, {set: false}, 'not set :: ', 'inverted sections run when property is false');
-    shouldCompileTo(string, {set: true}, ' :: set', "inverted sections don't run when property is true");
+    shouldCompileTo(
+      string,
+      {},
+      'not set :: ',
+      "inverted sections run when property isn't present in context"
+    );
+    shouldCompileTo(
+      string,
+      { set: undefined },
+      'not set :: ',
+      'inverted sections run when property is undefined'
+    );
+    shouldCompileTo(
+      string,
+      { set: false },
+      'not set :: ',
+      'inverted sections run when property is false'
+    );
+    shouldCompileTo(
+      string,
+      { set: true },
+      ' :: set',
+      "inverted sections don't run when property is true"
+    );
   });
 
   it('GH-158: Using array index twice, breaks the template', function() {
     var string = '{{arr.[0]}}, {{arr.[1]}}';
-    var data = { 'arr': [1, 2] };
+    var data = { arr: [1, 2] };
 
     shouldCompileTo(string, data, '1, 2', 'it works as expected');
   });
 
   it("bug reported by @fat where lambdas weren't being properly resolved", function() {
-    var string = '<strong>This is a slightly more complicated {{thing}}.</strong>.\n'
-        + '{{! Just ignore this business. }}\n'
-        + 'Check this out:\n'
-        + '{{#hasThings}}\n'
-        + '<ul>\n'
-        + '{{#things}}\n'
-        + '<li class={{className}}>{{word}}</li>\n'
-        + '{{/things}}</ul>.\n'
-        + '{{/hasThings}}\n'
-        + '{{^hasThings}}\n'
-        + '\n'
-        + '<small>Nothing to check out...</small>\n'
-        + '{{/hasThings}}';
+    var string =
+      '<strong>This is a slightly more complicated {{thing}}.</strong>.\n' +
+      '{{! Just ignore this business. }}\n' +
+      'Check this out:\n' +
+      '{{#hasThings}}\n' +
+      '<ul>\n' +
+      '{{#things}}\n' +
+      '<li class={{className}}>{{word}}</li>\n' +
+      '{{/things}}</ul>.\n' +
+      '{{/hasThings}}\n' +
+      '{{^hasThings}}\n' +
+      '\n' +
+      '<small>Nothing to check out...</small>\n' +
+      '{{/hasThings}}';
     var data = {
       thing: function() {
         return 'blah';
       },
       things: [
-        {className: 'one', word: '@fat'},
-        {className: 'two', word: '@dhg'},
-        {className: 'three', word: '@sayrer'}
+        { className: 'one', word: '@fat' },
+        { className: 'two', word: '@dhg' },
+        { className: 'three', word: '@sayrer' }
       ],
       hasThings: function() {
         return true;
       }
     };
 
-    var output = '<strong>This is a slightly more complicated blah.</strong>.\n'
-        + 'Check this out:\n'
-        + '<ul>\n'
-        + '<li class=one>@fat</li>\n'
-        + '<li class=two>@dhg</li>\n'
-        + '<li class=three>@sayrer</li>\n'
-        + '</ul>.\n';
+    var output =
+      '<strong>This is a slightly more complicated blah.</strong>.\n' +
+      'Check this out:\n' +
+      '<ul>\n' +
+      '<li class=one>@fat</li>\n' +
+      '<li class=two>@dhg</li>\n' +
+      '<li class=three>@sayrer</li>\n' +
+      '</ul>.\n';
     shouldCompileTo(string, data, output);
   });
 
   it('GH-408: Multiple loops fail', function() {
     var context = [
       { name: 'John Doe', location: { city: 'Chicago' } },
-      { name: 'Jane Doe', location: { city: 'New York'} }
+      { name: 'Jane Doe', location: { city: 'New York' } }
     ];
 
-    var template = CompilerContext.compile('{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}');
+    var template = CompilerContext.compile(
+      '{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}'
+    );
 
     var result = template(context);
-    equals(result, 'John DoeJane DoeJohn DoeJane DoeJohn DoeJane Doe', 'It should output multiple times');
+    equals(
+      result,
+      'John DoeJane DoeJohn DoeJane DoeJohn DoeJane Doe',
+      'It should output multiple times'
+    );
   });
 
   it('GS-428: Nested if else rendering', function() {
-    var succeedingTemplate = '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}}  {{#blk}} Expected {{/blk}} {{/inverse}}';
-    var failingTemplate = '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}} {{#blk}} Expected {{/blk}} {{/inverse}}';
+    var succeedingTemplate =
+      '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}}  {{#blk}} Expected {{/blk}} {{/inverse}}';
+    var failingTemplate =
+      '{{#inverse}} {{#blk}} Unexpected {{/blk}} {{else}} {{#blk}} Expected {{/blk}} {{/inverse}}';
 
     var helpers = {
-      blk: function(block) { return block.fn(''); },
-      inverse: function(block) { return block.inverse(''); }
+      blk: function(block) {
+        return block.fn('');
+      },
+      inverse: function(block) {
+        return block.inverse('');
+      }
     };
 
     shouldCompileTo(succeedingTemplate, [{}, helpers], '   Expected  ');
@@ -95,7 +136,7 @@ describe('Regressions', function() {
   });
 
   it('GH-458: Scoped this identifier', function() {
-    shouldCompileTo('{{./foo}}', {foo: 'bar'}, 'bar');
+    shouldCompileTo('{{./foo}}', { foo: 'bar' }, 'bar');
   });
 
   it('GH-375: Unicode line terminators', function() {
@@ -104,11 +145,11 @@ describe('Regressions', function() {
 
   it('GH-534: Object prototype aliases', function() {
     /* eslint-disable no-extend-native */
-    Object.prototype[0xD834] = true;
+    Object.prototype[0xd834] = true;
 
     shouldCompileTo('{{foo}}', { foo: 'bar' }, 'bar');
 
-    delete Object.prototype[0xD834];
+    delete Object.prototype[0xd834];
     /* eslint-enable no-extend-native */
   });
 
@@ -123,34 +164,46 @@ describe('Regressions', function() {
 
   it('GH-676: Using array in escaping mustache fails', function() {
     var string = '{{arr}}';
-    var data = { 'arr': [1, 2] };
+    var data = { arr: [1, 2] };
 
     shouldCompileTo(string, data, data.arr.toString(), 'it works as expected');
   });
 
   it('Mustache man page', function() {
-    var string = 'Hello {{name}}. You have just won ${{value}}!{{#in_ca}} Well, ${{taxed_value}}, after taxes.{{/in_ca}}';
+    var string =
+      'Hello {{name}}. You have just won ${{value}}!{{#in_ca}} Well, ${{taxed_value}}, after taxes.{{/in_ca}}';
     var data = {
-      'name': 'Chris',
-      'value': 10000,
-      'taxed_value': 10000 - (10000 * 0.4),
-      'in_ca': true
+      name: 'Chris',
+      value: 10000,
+      taxed_value: 10000 - 10000 * 0.4,
+      in_ca: true
     };
 
-    shouldCompileTo(string, data, 'Hello Chris. You have just won $10000! Well, $6000, after taxes.', 'the hello world mustache example works');
+    shouldCompileTo(
+      string,
+      data,
+      'Hello Chris. You have just won $10000! Well, $6000, after taxes.',
+      'the hello world mustache example works'
+    );
   });
 
   it('GH-731: zero context rendering', function() {
-    shouldCompileTo('{{#foo}} This is {{bar}} ~ {{/foo}}', {foo: 0, bar: 'OK'}, ' This is  ~ ');
+    shouldCompileTo(
+      '{{#foo}} This is {{bar}} ~ {{/foo}}',
+      { foo: 0, bar: 'OK' },
+      ' This is  ~ '
+    );
   });
 
   it('GH-820: zero pathed rendering', function() {
-    shouldCompileTo('{{foo.bar}}', {foo: 0}, '');
+    shouldCompileTo('{{foo.bar}}', { foo: 0 }, '');
   });
 
   it('GH-837: undefined values for helpers', function() {
     var helpers = {
-      str: function(value) { return value + ''; }
+      str: function(value) {
+        return value + '';
+      }
     };
 
     shouldCompileTo('{{str bar.baz}}', [{}, helpers], 'undefined');
@@ -159,15 +212,13 @@ describe('Regressions', function() {
   it('GH-926: Depths and de-dupe', function() {
     var context = {
       name: 'foo',
-      data: [
-        1
-      ],
-      notData: [
-        1
-      ]
+      data: [1],
+      notData: [1]
     };
 
-    var template = CompilerContext.compile('{{#if dater}}{{#each data}}{{../name}}{{/each}}{{else}}{{#each notData}}{{../name}}{{/each}}{{/if}}');
+    var template = CompilerContext.compile(
+      '{{#if dater}}{{#each data}}{{../name}}{{/each}}{{else}}{{#each notData}}{{../name}}{{/each}}{{/if}}'
+    );
 
     var result = template(context);
     equals(result, 'foo');
@@ -176,11 +227,15 @@ describe('Regressions', function() {
   it('GH-1021: Each empty string key', function() {
     var data = {
       '': 'foo',
-      'name': 'Chris',
-      'value': 10000
+      name: 'Chris',
+      value: 10000
     };
 
-    shouldCompileTo('{{#each data}}Key: {{@key}}\n{{/each}}', {data: data}, 'Key: \nKey: name\nKey: value\n');
+    shouldCompileTo(
+      '{{#each data}}Key: {{@key}}\n{{/each}}',
+      { data: data },
+      'Key: \nKey: name\nKey: value\n'
+    );
   });
 
   it('GH-1054: Should handle simple safe string responses', function() {
@@ -194,18 +249,27 @@ describe('Regressions', function() {
       }
     };
 
-    shouldCompileToWithPartials(root, [{}, helpers, partials], true, '<partial>');
+    shouldCompileToWithPartials(
+      root,
+      [{}, helpers, partials],
+      true,
+      '<partial>'
+    );
   });
 
   it('GH-1065: Sparse arrays', function() {
     var array = [];
     array[1] = 'foo';
     array[3] = 'bar';
-    shouldCompileTo('{{#each array}}{{@index}}{{.}}{{/each}}', {array: array}, '1foo3bar');
+    shouldCompileTo(
+      '{{#each array}}{{@index}}{{.}}{{/each}}',
+      { array: array },
+      '1foo3bar'
+    );
   });
 
   it('GH-1093: Undefined helper context', function() {
-    var obj = {foo: undefined, bar: 'bat'};
+    var obj = { foo: undefined, bar: 'bat' };
     var helpers = {
       helper: function() {
         // It's valid to execute a block against an undefined context, but
@@ -216,28 +280,45 @@ describe('Regressions', function() {
           }
         }
         // And to make IE happy, check for the known string as length is not enumerated.
-        return (this === 'bat' ? 'found' : 'not');
+        return this === 'bat' ? 'found' : 'not';
       }
     };
 
-    shouldCompileTo('{{#each obj}}{{{helper}}}{{.}}{{/each}}', [{obj: obj}, helpers], 'notfoundbat');
+    shouldCompileTo(
+      '{{#each obj}}{{{helper}}}{{.}}{{/each}}',
+      [{ obj: obj }, helpers],
+      'notfoundbat'
+    );
   });
 
   it('should support multiple levels of inline partials', function() {
-    var string = '{{#> layout}}{{#*inline "subcontent"}}subcontent{{/inline}}{{/layout}}';
+    var string =
+      '{{#> layout}}{{#*inline "subcontent"}}subcontent{{/inline}}{{/layout}}';
     var partials = {
       doctype: 'doctype{{> content}}',
-      layout: '{{#> doctype}}{{#*inline "content"}}layout{{> subcontent}}{{/inline}}{{/doctype}}'
+      layout:
+        '{{#> doctype}}{{#*inline "content"}}layout{{> subcontent}}{{/inline}}{{/doctype}}'
     };
-    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'doctypelayoutsubcontent');
+    shouldCompileToWithPartials(
+      string,
+      [{}, {}, partials],
+      true,
+      'doctypelayoutsubcontent'
+    );
   });
   it('GH-1089: should support failover content in multiple levels of inline partials', function() {
     var string = '{{#> layout}}{{/layout}}';
     var partials = {
       doctype: 'doctype{{> content}}',
-      layout: '{{#> doctype}}{{#*inline "content"}}layout{{#> subcontent}}subcontent{{/subcontent}}{{/inline}}{{/doctype}}'
+      layout:
+        '{{#> doctype}}{{#*inline "content"}}layout{{#> subcontent}}subcontent{{/subcontent}}{{/inline}}{{/doctype}}'
     };
-    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'doctypelayoutsubcontent');
+    shouldCompileToWithPartials(
+      string,
+      [{}, {}, partials],
+      true,
+      'doctypelayoutsubcontent'
+    );
   });
   it('GH-1099: should support greater than 3 nested levels of inline partials', function() {
     var string = '{{#> layout}}Outer{{/layout}}';
@@ -249,51 +330,63 @@ describe('Regressions', function() {
   });
 
   it('GH-1135 : Context handling within each iteration', function() {
-    var obj = {array: [1], name: 'John'};
+    var obj = { array: [1], name: 'John' };
     var helpers = {
       myif: function(conditional, options) {
         if (conditional) {
-            return options.fn(this);
+          return options.fn(this);
         } else {
-            return options.inverse(this);
+          return options.inverse(this);
         }
       }
     };
 
     shouldCompileTo(
-      '{{#each array}}\n'
-      + ' 1. IF: {{#if true}}{{../name}}-{{../../name}}-{{../../../name}}{{/if}}\n'
-      + ' 2. MYIF: {{#myif true}}{{../name}}={{../../name}}={{../../../name}}{{/myif}}\n'
-      + '{{/each}}', [obj, helpers],
-      ' 1. IF: John--\n'
-      + ' 2. MYIF: John==\n');
+      '{{#each array}}\n' +
+        ' 1. IF: {{#if true}}{{../name}}-{{../../name}}-{{../../../name}}{{/if}}\n' +
+        ' 2. MYIF: {{#myif true}}{{../name}}={{../../name}}={{../../../name}}{{/myif}}\n' +
+        '{{/each}}',
+      [obj, helpers],
+      ' 1. IF: John--\n' + ' 2. MYIF: John==\n'
+    );
   });
 
   it('GH-1186: Support block params for existing programs', function() {
     var string =
-        '{{#*inline "test"}}{{> @partial-block }}{{/inline}}'
-      + '{{#>test }}{{#each listOne as |item|}}{{ item }}{{/each}}{{/test}}'
-      + '{{#>test }}{{#each listTwo as |item|}}{{ item }}{{/each}}{{/test}}';
+      '{{#*inline "test"}}{{> @partial-block }}{{/inline}}' +
+      '{{#>test }}{{#each listOne as |item|}}{{ item }}{{/each}}{{/test}}' +
+      '{{#>test }}{{#each listTwo as |item|}}{{ item }}{{/each}}{{/test}}';
 
-    shouldCompileTo(string, { listOne: ['a'], listTwo: ['b']}, 'ab', '');
+    shouldCompileTo(string, { listOne: ['a'], listTwo: ['b'] }, 'ab', '');
   });
 
   it('GH-1319: "unless" breaks when "each" value equals "null"', function() {
-    var string = '{{#each list}}{{#unless ./prop}}parent={{../value}} {{/unless}}{{/each}}';
-    shouldCompileTo(string, { value: 'parent', list: [ null, 'a'] }, 'parent=parent parent=parent ', '');
+    var string =
+      '{{#each list}}{{#unless ./prop}}parent={{../value}} {{/unless}}{{/each}}';
+    shouldCompileTo(
+      string,
+      { value: 'parent', list: [null, 'a'] },
+      'parent=parent parent=parent ',
+      ''
+    );
   });
 
   it('GH-1341: 4.0.7 release breaks {{#if @partial-block}} usage', function() {
     var string = 'template {{>partial}} template';
     var partials = {
-      partialWithBlock: '{{#if @partial-block}} block {{> @partial-block}} block {{/if}}',
+      partialWithBlock:
+        '{{#if @partial-block}} block {{> @partial-block}} block {{/if}}',
       partial: '{{#> partialWithBlock}} partial {{/partialWithBlock}}'
     };
-    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'template  block  partial  block  template');
+    shouldCompileToWithPartials(
+      string,
+      [{}, {}, partials],
+      true,
+      'template  block  partial  block  template'
+    );
   });
 
   describe('GH-1561: 4.3.x should still work with precompiled templates from 4.0.0 <= x < 4.3.0', function() {
-
     it('should compile and execute templates', function() {
       var newHandlebarsInstance = Handlebars.create();
 
@@ -301,31 +394,53 @@ describe('Regressions', function() {
       newHandlebarsInstance.registerHelper('loud', function(value) {
         return value.toUpperCase();
       });
-      var result = newHandlebarsInstance.templates['test.hbs']({name: 'yehuda'});
+      var result = newHandlebarsInstance.templates['test.hbs']({
+        name: 'yehuda'
+      });
       equals(result.trim(), 'YEHUDA');
     });
 
     it('should call "helperMissing" if a helper is missing', function() {
       var newHandlebarsInstance = Handlebars.create();
 
-      shouldThrow(function() {
-        registerTemplate(newHandlebarsInstance);
-        newHandlebarsInstance.templates['test.hbs']({});
-      }, Handlebars.Exception, 'Missing helper: "loud"');
+      shouldThrow(
+        function() {
+          registerTemplate(newHandlebarsInstance);
+          newHandlebarsInstance.templates['test.hbs']({});
+        },
+        Handlebars.Exception,
+        'Missing helper: "loud"'
+      );
     });
 
     // This is a only slightly modified precompiled templated from compiled with 4.2.1
     function registerTemplate(Handlebars) {
-      var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
-      templates['test.hbs'] = template({'compiler': [7, '>= 4.0.0'], 'main': function(container, depth0, helpers, partials, data) {
-          return container.escapeExpression((helpers.loud || (depth0 && depth0.loud) || helpers.helperMissing).call(depth0 != null ? depth0 : (container.nullContext || {}), (depth0 != null ? depth0.name : depth0), {'name': 'loud', 'hash': {}, 'data': data}))
-              + '\n\n';
-        }, 'useData': true});
+      var template = Handlebars.template,
+        templates = (Handlebars.templates = Handlebars.templates || {});
+      templates['test.hbs'] = template({
+        compiler: [7, '>= 4.0.0'],
+        main: function(container, depth0, helpers, partials, data) {
+          return (
+            container.escapeExpression(
+              (
+                helpers.loud ||
+                (depth0 && depth0.loud) ||
+                helpers.helperMissing
+              ).call(
+                depth0 != null ? depth0 : container.nullContext || {},
+                depth0 != null ? depth0.name : depth0,
+                { name: 'loud', hash: {}, data: data }
+              )
+            ) + '\n\n'
+          );
+        },
+        useData: true
+      });
     }
   });
 
   it('should allow hash with protected array names', function() {
-    var obj = {array: [1], name: 'John'};
+    var obj = { array: [1], name: 'John' };
     var helpers = {
       helpa: function(options) {
         return options.hash.length;
@@ -352,7 +467,7 @@ describe('Regressions', function() {
     it('should only compile global partials once', function() {
       var templateSpy = sinon.spy(newHandlebarsInstance, 'template');
       newHandlebarsInstance.registerPartial({
-        'dude': 'I am a partial'
+        dude: 'I am a partial'
       });
       var string = 'Dudes: {{> dude}} {{> dude}}';
       newHandlebarsInstance.compile(string)(); // This should compile template + partial once
diff --git a/spec/require.js b/spec/require.js
index 6c0b5ae46..f8ddba59a 100644
--- a/spec/require.js
+++ b/spec/require.js
@@ -5,7 +5,7 @@ if (typeof require !== 'undefined' && require.extensions['.handlebars']) {
       equal(template, require('./artifacts/example_1.handlebars'));
 
       var expected = 'foo\n';
-      var result = template({foo: 'foo'});
+      var result = template({ foo: 'foo' });
 
       equal(result, expected);
     });
@@ -15,7 +15,7 @@ if (typeof require !== 'undefined' && require.extensions['.handlebars']) {
       equal(template, require('./artifacts/example_2.hbs'));
 
       var expected = 'Hello, World!\n';
-      var result = template({name: 'World'});
+      var result = template({ name: 'World' });
 
       equal(result, expected);
     });
diff --git a/spec/runtime.js b/spec/runtime.js
index 3549640b7..7924a5f00 100644
--- a/spec/runtime.js
+++ b/spec/runtime.js
@@ -1,34 +1,58 @@
 describe('runtime', function() {
   describe('#template', function() {
     it('should throw on invalid templates', function() {
-      shouldThrow(function() {
-        Handlebars.template({});
-      }, Error, 'Unknown template object: object');
-      shouldThrow(function() {
-        Handlebars.template();
-      }, Error, 'Unknown template object: undefined');
-      shouldThrow(function() {
-        Handlebars.template('');
-      }, Error, 'Unknown template object: string');
+      shouldThrow(
+        function() {
+          Handlebars.template({});
+        },
+        Error,
+        'Unknown template object: object'
+      );
+      shouldThrow(
+        function() {
+          Handlebars.template();
+        },
+        Error,
+        'Unknown template object: undefined'
+      );
+      shouldThrow(
+        function() {
+          Handlebars.template('');
+        },
+        Error,
+        'Unknown template object: string'
+      );
     });
     it('should throw on version mismatch', function() {
-      shouldThrow(function() {
-        Handlebars.template({
-          main: {},
-          compiler: [Handlebars.COMPILER_REVISION + 1]
-        });
-      }, Error, /Template was precompiled with a newer version of Handlebars than the current runtime/);
-      shouldThrow(function() {
-        Handlebars.template({
-          main: {},
-          compiler: [Handlebars.LAST_COMPATIBLE_COMPILER_REVISION - 1]
-        });
-      }, Error, /Template was precompiled with an older version of Handlebars than the current runtime/);
-      shouldThrow(function() {
-        Handlebars.template({
-          main: {}
-        });
-      }, Error, /Template was precompiled with an older version of Handlebars than the current runtime/);
+      shouldThrow(
+        function() {
+          Handlebars.template({
+            main: {},
+            compiler: [Handlebars.COMPILER_REVISION + 1]
+          });
+        },
+        Error,
+        /Template was precompiled with a newer version of Handlebars than the current runtime/
+      );
+      shouldThrow(
+        function() {
+          Handlebars.template({
+            main: {},
+            compiler: [Handlebars.LAST_COMPATIBLE_COMPILER_REVISION - 1]
+          });
+        },
+        Error,
+        /Template was precompiled with an older version of Handlebars than the current runtime/
+      );
+      shouldThrow(
+        function() {
+          Handlebars.template({
+            main: {}
+          });
+        },
+        Error,
+        /Template was precompiled with an older version of Handlebars than the current runtime/
+      );
     });
   });
 
@@ -38,34 +62,42 @@ describe('runtime', function() {
     }
 
     it('should throw for depthed methods without depths', function() {
-      shouldThrow(function() {
-        var template = Handlebars.compile('{{#foo}}{{../bar}}{{/foo}}');
-        // Calling twice to hit the non-compiled case.
-        template._setup({});
-        template._setup({});
-        template._child(1);
-      }, Error, 'must pass parent depths');
+      shouldThrow(
+        function() {
+          var template = Handlebars.compile('{{#foo}}{{../bar}}{{/foo}}');
+          // Calling twice to hit the non-compiled case.
+          template._setup({});
+          template._setup({});
+          template._child(1);
+        },
+        Error,
+        'must pass parent depths'
+      );
     });
 
     it('should throw for block param methods without params', function() {
-      shouldThrow(function() {
-        var template = Handlebars.compile('{{#foo as |foo|}}{{foo}}{{/foo}}');
-        // Calling twice to hit the non-compiled case.
-        template._setup({});
-        template._setup({});
-        template._child(1);
-      }, Error, 'must pass block params');
+      shouldThrow(
+        function() {
+          var template = Handlebars.compile('{{#foo as |foo|}}{{foo}}{{/foo}}');
+          // Calling twice to hit the non-compiled case.
+          template._setup({});
+          template._setup({});
+          template._child(1);
+        },
+        Error,
+        'must pass block params'
+      );
     });
     it('should expose child template', function() {
       var template = Handlebars.compile('{{#foo}}bar{{/foo}}');
-        // Calling twice to hit the non-compiled case.
+      // Calling twice to hit the non-compiled case.
       equal(template._child(1)(), 'bar');
       equal(template._child(1)(), 'bar');
     });
     it('should render depthed content', function() {
       var template = Handlebars.compile('{{#foo}}{{../bar}}{{/foo}}');
-        // Calling twice to hit the non-compiled case.
-      equal(template._child(1, undefined, [], [{bar: 'baz'}])(), 'baz');
+      // Calling twice to hit the non-compiled case.
+      equal(template._child(1, undefined, [], [{ bar: 'baz' }])(), 'baz');
     });
   });
 
diff --git a/spec/security.js b/spec/security.js
index 18bfa5dd7..ed0189281 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -1,144 +1,208 @@
 describe('security issues', function() {
-    describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
-        it('should not allow constructors to be accessed', function() {
-            expectTemplate('{{lookup (lookup this "constructor") "name"}}')
-                .withInput({})
-                .toCompileTo('');
-
-            expectTemplate('{{constructor.name}}')
-                .withInput({})
-                .toCompileTo('');
-        });
-
-        it('GH-1603: should not allow constructors to be accessed (lookup via toString)', function() {
-          expectTemplate('{{lookup (lookup this (list "constructor")) "name"}}')
-              .withInput({})
-              .withHelper('list', function(element) {
-                return [element];
-              })
-              .toCompileTo('');
-        });
-
-
-      it('should allow the "constructor" property to be accessed if it is enumerable', function() {
-            shouldCompileTo('{{constructor.name}}', {'constructor': {
-                'name': 'here we go'
-            }}, 'here we go');
-            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {'constructor': {
-                'name': 'here we go'
-            }}, 'here we go');
-        });
-
-        it('should allow the "constructor" property to be accessed if it is enumerable', function() {
-            shouldCompileTo('{{lookup (lookup this "constructor") "name"}}', {'constructor': {
-                    'name': 'here we go'
-                }}, 'here we go');
-        });
-
-
-        it('should allow prototype properties that are not constructors', function() {
-            function TestClass() {
-            }
-
-            Object.defineProperty(TestClass.prototype, 'abc', {
-                get: function() {
-                    return 'xyz';
-                }
+  describe('GH-1495: Prevent Remote Code Execution via constructor', function() {
+    it('should not allow constructors to be accessed', function() {
+      expectTemplate('{{lookup (lookup this "constructor") "name"}}')
+        .withInput({})
+        .toCompileTo('');
+
+      expectTemplate('{{constructor.name}}')
+        .withInput({})
+        .toCompileTo('');
+    });
 
-            });
+    it('GH-1603: should not allow constructors to be accessed (lookup via toString)', function() {
+      expectTemplate('{{lookup (lookup this (list "constructor")) "name"}}')
+        .withInput({})
+        .withHelper('list', function(element) {
+          return [element];
+        })
+        .toCompileTo('');
+    });
 
-            shouldCompileTo('{{#with this as |obj|}}{{obj.abc}}{{/with}}',
-                new TestClass(), 'xyz');
-            shouldCompileTo('{{#with this as |obj|}}{{lookup obj "abc"}}{{/with}}',
-                new TestClass(), 'xyz');
+    it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+      shouldCompileTo(
+        '{{constructor.name}}',
+        {
+          constructor: {
+            name: 'here we go'
+          }
+        },
+        'here we go'
+      );
+      shouldCompileTo(
+        '{{lookup (lookup this "constructor") "name"}}',
+        {
+          constructor: {
+            name: 'here we go'
+          }
+        },
+        'here we go'
+      );
+    });
 
-        });
+    it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+      shouldCompileTo(
+        '{{lookup (lookup this "constructor") "name"}}',
+        {
+          constructor: {
+            name: 'here we go'
+          }
+        },
+        'here we go'
+      );
     });
 
-    describe('GH-1558: Prevent explicit call of helperMissing-helpers', function() {
-        if (!Handlebars.compile) {
-            return;
-        }
+    it('should allow prototype properties that are not constructors', function() {
+      function TestClass() {}
 
-        describe('without the option "allowExplicitCallOfHelperMissing"', function() {
-            it('should throw an exception when calling  "{{helperMissing}}" ', function() {
-                shouldThrow(function() {
-                    var template = Handlebars.compile('{{helperMissing}}');
-                    template({});
-                }, Error);
-            });
-            it('should throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
-                shouldThrow(function() {
-                    var template = Handlebars.compile('{{#helperMissing}}{{/helperMissing}}');
-                    template({});
-                }, Error);
-            });
-            it('should throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
-                var functionCalls = [];
-                expect(function() {
-                    var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
-                    template({ fn: function() { functionCalls.push('called'); }});
-                }).to.throw(Error);
-                expect(functionCalls.length).to.equal(0);
-            });
-            it('should throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
-                shouldThrow(function() {
-                    var template = Handlebars.compile('{{#blockHelperMissing .}}{{/blockHelperMissing}}');
-                    template({ fn: function() { return 'functionInData';}});
-                }, Error);
-            });
-        });
+      Object.defineProperty(TestClass.prototype, 'abc', {
+        get: function() {
+          return 'xyz';
+        }
+      });
 
-        describe('with the option "allowCallsToHelperMissing" set to true', function() {
-            it('should not throw an exception when calling  "{{helperMissing}}" ', function() {
-                    var template = Handlebars.compile('{{helperMissing}}');
-                    template({}, {allowCallsToHelperMissing: true});
-            });
-            it('should not throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
-                    var template = Handlebars.compile('{{#helperMissing}}{{/helperMissing}}');
-                    template({}, {allowCallsToHelperMissing: true});
-            });
-            it('should not throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
-                    var functionCalls = [];
-                    var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
-                    template({ fn: function() { functionCalls.push('called'); }}, {allowCallsToHelperMissing: true});
-                    equals(functionCalls.length, 1);
-            });
-            it('should not throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
-                    var template = Handlebars.compile('{{#blockHelperMissing true}}sdads{{/blockHelperMissing}}');
-                    template({}, {allowCallsToHelperMissing: true});
-            });
-        });
+      shouldCompileTo(
+        '{{#with this as |obj|}}{{obj.abc}}{{/with}}',
+        new TestClass(),
+        'xyz'
+      );
+      shouldCompileTo(
+        '{{#with this as |obj|}}{{lookup obj "abc"}}{{/with}}',
+        new TestClass(),
+        'xyz'
+      );
     });
-
-    describe('GH-1563', function() {
-        it('should not allow to access constructor after overriding via __defineGetter__', function() {
-            if (({}).__defineGetter__ == null || ({}).__lookupGetter__ == null) {
-                return this.skip(); // Browser does not support this exploit anyway
+  });
+
+  describe('GH-1558: Prevent explicit call of helperMissing-helpers', function() {
+    if (!Handlebars.compile) {
+      return;
+    }
+
+    describe('without the option "allowExplicitCallOfHelperMissing"', function() {
+      it('should throw an exception when calling  "{{helperMissing}}" ', function() {
+        shouldThrow(function() {
+          var template = Handlebars.compile('{{helperMissing}}');
+          template({});
+        }, Error);
+      });
+      it('should throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
+        shouldThrow(function() {
+          var template = Handlebars.compile(
+            '{{#helperMissing}}{{/helperMissing}}'
+          );
+          template({});
+        }, Error);
+      });
+      it('should throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
+        var functionCalls = [];
+        expect(function() {
+          var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
+          template({
+            fn: function() {
+              functionCalls.push('called');
             }
-            expectTemplate('{{__defineGetter__ "undefined" valueOf }}' +
-                '{{#with __lookupGetter__ }}' +
-                '{{__defineGetter__ "propertyIsEnumerable" (this.bind (this.bind 1)) }}' +
-                '{{constructor.name}}' +
-                '{{/with}}')
-                .withInput({})
-                .toThrow(/Missing helper: "__defineGetter__"/);
-        });
+          });
+        }).to.throw(Error);
+        expect(functionCalls.length).to.equal(0);
+      });
+      it('should throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
+        shouldThrow(function() {
+          var template = Handlebars.compile(
+            '{{#blockHelperMissing .}}{{/blockHelperMissing}}'
+          );
+          template({
+            fn: function() {
+              return 'functionInData';
+            }
+          });
+        }, Error);
+      });
     });
 
-    describe('GH-1595', function() {
-      it('properties, that are required to be enumerable', function() {
-        expectTemplate('{{constructor}}').withInput({}).toCompileTo('');
-        expectTemplate('{{__defineGetter__}}').withInput({}).toCompileTo('');
-        expectTemplate('{{__defineSetter__}}').withInput({}).toCompileTo('');
-        expectTemplate('{{__lookupGetter__}}').withInput({}).toCompileTo('');
-        expectTemplate('{{__proto__}}').withInput({}).toCompileTo('');
-
-        expectTemplate('{{lookup "constructor"}}').withInput({}).toCompileTo('');
-        expectTemplate('{{lookup "__defineGetter__"}}').withInput({}).toCompileTo('');
-        expectTemplate('{{lookup "__defineSetter__"}}').withInput({}).toCompileTo('');
-        expectTemplate('{{lookup "__lookupGetter__"}}').withInput({}).toCompileTo('');
-        expectTemplate('{{lookup "__proto__"}}').withInput({}).toCompileTo('');
+    describe('with the option "allowCallsToHelperMissing" set to true', function() {
+      it('should not throw an exception when calling  "{{helperMissing}}" ', function() {
+        var template = Handlebars.compile('{{helperMissing}}');
+        template({}, { allowCallsToHelperMissing: true });
+      });
+      it('should not throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
+        var template = Handlebars.compile(
+          '{{#helperMissing}}{{/helperMissing}}'
+        );
+        template({}, { allowCallsToHelperMissing: true });
+      });
+      it('should not throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
+        var functionCalls = [];
+        var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
+        template(
+          {
+            fn: function() {
+              functionCalls.push('called');
+            }
+          },
+          { allowCallsToHelperMissing: true }
+        );
+        equals(functionCalls.length, 1);
       });
+      it('should not throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
+        var template = Handlebars.compile(
+          '{{#blockHelperMissing true}}sdads{{/blockHelperMissing}}'
+        );
+        template({}, { allowCallsToHelperMissing: true });
+      });
+    });
+  });
+
+  describe('GH-1563', function() {
+    it('should not allow to access constructor after overriding via __defineGetter__', function() {
+      if ({}.__defineGetter__ == null || {}.__lookupGetter__ == null) {
+        return this.skip(); // Browser does not support this exploit anyway
+      }
+      expectTemplate(
+        '{{__defineGetter__ "undefined" valueOf }}' +
+          '{{#with __lookupGetter__ }}' +
+          '{{__defineGetter__ "propertyIsEnumerable" (this.bind (this.bind 1)) }}' +
+          '{{constructor.name}}' +
+          '{{/with}}'
+      )
+        .withInput({})
+        .toThrow(/Missing helper: "__defineGetter__"/);
+    });
+  });
+
+  describe('GH-1595', function() {
+    it('properties, that are required to be enumerable', function() {
+      expectTemplate('{{constructor}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{__defineGetter__}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{__defineSetter__}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{__lookupGetter__}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{__proto__}}')
+        .withInput({})
+        .toCompileTo('');
+
+      expectTemplate('{{lookup "constructor"}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{lookup "__defineGetter__"}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{lookup "__defineSetter__"}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{lookup "__lookupGetter__"}}')
+        .withInput({})
+        .toCompileTo('');
+      expectTemplate('{{lookup "__proto__"}}')
+        .withInput({})
+        .toCompileTo('');
     });
+  });
 });
diff --git a/spec/source-map.js b/spec/source-map.js
index 54e5e4d91..024aaae60 100644
--- a/spec/source-map.js
+++ b/spec/source-map.js
@@ -1,7 +1,7 @@
 try {
   if (typeof define !== 'function' || !define.amd) {
     var SourceMap = require('source-map'),
-         SourceMapConsumer = SourceMap.SourceMapConsumer;
+      SourceMapConsumer = SourceMap.SourceMapConsumer;
   }
 } catch (err) {
   /* NOP for in browser */
@@ -13,22 +13,28 @@ describe('source-map', function() {
   }
 
   it('should safely include source map info', function() {
-    var template = Handlebars.precompile('{{hello}}', {destName: 'dest.js', srcName: 'src.hbs'});
+    var template = Handlebars.precompile('{{hello}}', {
+      destName: 'dest.js',
+      srcName: 'src.hbs'
+    });
 
     equal(!!template.code, true);
     equal(!!template.map, !CompilerContext.browser);
   });
   it('should map source properly', function() {
-    var templateSource = '  b{{hello}}  \n  {{bar}}a {{#block arg hash=(subex 1 subval)}}{{/block}}',
-        template = Handlebars.precompile(templateSource, {destName: 'dest.js', srcName: 'src.hbs'});
+    var templateSource =
+        '  b{{hello}}  \n  {{bar}}a {{#block arg hash=(subex 1 subval)}}{{/block}}',
+      template = Handlebars.precompile(templateSource, {
+        destName: 'dest.js',
+        srcName: 'src.hbs'
+      });
 
     if (template.map) {
       var consumer = new SourceMapConsumer(template.map),
-          lines = template.code.split('\n'),
-          srcLines = templateSource.split('\n'),
-
-          generated = grepLine('"  b"', lines),
-          source = grepLine('  b', srcLines);
+        lines = template.code.split('\n'),
+        srcLines = templateSource.split('\n'),
+        generated = grepLine('"  b"', lines),
+        source = grepLine('  b', srcLines);
 
       var mapped = consumer.originalPositionFor(generated);
       equal(mapped.line, source.line);
diff --git a/spec/spec.js b/spec/spec.js
index 805609d01..ff4d7bc98 100644
--- a/spec/spec.js
+++ b/spec/spec.js
@@ -5,11 +5,11 @@ describe('spec', function() {
   }
 
   var _ = require('underscore'),
-      fs = require('fs');
+    fs = require('fs');
 
   var specDir = __dirname + '/mustache/specs/';
   var specs = _.filter(fs.readdirSync(specDir), function(name) {
-    return (/.*\.json$/).test(name);
+    return /.*\.json$/.test(name);
   });
 
   _.each(specs, function(name) {
@@ -17,16 +17,17 @@ describe('spec', function() {
     _.each(spec.tests, function(test) {
       // Our lambda implementation knowingly deviates from the optional Mustace lambda spec
       // We also do not support alternative delimeters
-      if (name === '~lambdas.json'
-
-          // We also choose to throw if paritals are not found
-          || (name === 'partials.json' && test.name === 'Failed Lookup')
-
-          // We nest the entire response from partials, not just the literals
-          || (name === 'partials.json' && test.name === 'Standalone Indentation')
-
-          || (/\{\{=/).test(test.template)
-          || _.any(test.partials, function(partial) { return (/\{\{=/).test(partial); })) {
+      if (
+        name === '~lambdas.json' ||
+        // We also choose to throw if paritals are not found
+        (name === 'partials.json' && test.name === 'Failed Lookup') ||
+        // We nest the entire response from partials, not just the literals
+        (name === 'partials.json' && test.name === 'Standalone Indentation') ||
+        /\{\{=/.test(test.template) ||
+        _.any(test.partials, function(partial) {
+          return /\{\{=/.test(partial);
+        })
+      ) {
         it.skip(name + ' - ' + test.name);
         return;
       }
@@ -40,9 +41,20 @@ describe('spec', function() {
       }
       it(name + ' - ' + test.name, function() {
         if (test.partials) {
-          shouldCompileToWithPartials(test.template, [data, {}, test.partials, true], true, test.expected, test.desc + ' "' + test.template + '"');
+          shouldCompileToWithPartials(
+            test.template,
+            [data, {}, test.partials, true],
+            true,
+            test.expected,
+            test.desc + ' "' + test.template + '"'
+          );
         } else {
-          shouldCompileTo(test.template, [data, {}, {}, true], test.expected, test.desc + ' "' + test.template + '"');
+          shouldCompileTo(
+            test.template,
+            [data, {}, {}, true],
+            test.expected,
+            test.desc + ' "' + test.template + '"'
+          );
         }
       });
     });
diff --git a/spec/strict.js b/spec/strict.js
index 3bd7cc18e..680bbc0d8 100644
--- a/spec/strict.js
+++ b/spec/strict.js
@@ -3,43 +3,58 @@ var Exception = Handlebars.Exception;
 describe('strict', function() {
   describe('strict mode', function() {
     it('should error on missing property lookup', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', {strict: true});
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{hello}}', { strict: true });
 
-        template({});
-      }, Exception, /"hello" not defined in/);
+          template({});
+        },
+        Exception,
+        /"hello" not defined in/
+      );
     });
     it('should error on missing child', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', {strict: true});
-      equals(template({hello: {bar: 'foo'}}), 'foo');
+      var template = CompilerContext.compile('{{hello.bar}}', { strict: true });
+      equals(template({ hello: { bar: 'foo' } }), 'foo');
 
-      shouldThrow(function() {
-        template({hello: {}});
-      }, Exception, /"bar" not defined in/);
+      shouldThrow(
+        function() {
+          template({ hello: {} });
+        },
+        Exception,
+        /"bar" not defined in/
+      );
     });
     it('should handle explicit undefined', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', {strict: true});
+      var template = CompilerContext.compile('{{hello.bar}}', { strict: true });
 
-      equals(template({hello: {bar: undefined}}), '');
+      equals(template({ hello: { bar: undefined } }), '');
     });
     it('should error on missing property lookup in known helpers mode', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', {strict: true, knownHelpersOnly: true});
-
-        template({});
-      }, Exception, /"hello" not defined in/);
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{hello}}', {
+            strict: true,
+            knownHelpersOnly: true
+          });
+
+          template({});
+        },
+        Exception,
+        /"hello" not defined in/
+      );
     });
     it('should error on missing context', function() {
       shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', {strict: true});
+        var template = CompilerContext.compile('{{hello}}', { strict: true });
 
         template();
       }, Error);
     });
 
     it('should error on missing data lookup', function() {
-      var template = CompilerContext.compile('{{@hello}}', {strict: true});
-      equals(template(undefined, {data: {hello: 'foo'}}), 'foo');
+      var template = CompilerContext.compile('{{@hello}}', { strict: true });
+      equals(template(undefined, { data: { hello: 'foo' } }), 'foo');
 
       shouldThrow(function() {
         template();
@@ -47,45 +62,81 @@ describe('strict', function() {
     });
 
     it('should not run helperMissing for helper calls', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello foo}}', {strict: true});
-
-        template({foo: true});
-      }, Exception, /"hello" not defined in/);
-
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{#hello foo}}{{/hello}}', {strict: true});
-
-        template({foo: true});
-      }, Exception, /"hello" not defined in/);
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{hello foo}}', {
+            strict: true
+          });
+
+          template({ foo: true });
+        },
+        Exception,
+        /"hello" not defined in/
+      );
+
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{#hello foo}}{{/hello}}', {
+            strict: true
+          });
+
+          template({ foo: true });
+        },
+        Exception,
+        /"hello" not defined in/
+      );
     });
     it('should throw on ambiguous blocks', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{#hello}}{{/hello}}', {strict: true});
-
-        template({});
-      }, Exception, /"hello" not defined in/);
-
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{^hello}}{{/hello}}', {strict: true});
-
-        template({});
-      }, Exception, /"hello" not defined in/);
-
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{#hello.bar}}{{/hello.bar}}', {strict: true});
-
-        template({hello: {}});
-      }, Exception, /"bar" not defined in/);
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{#hello}}{{/hello}}', {
+            strict: true
+          });
+
+          template({});
+        },
+        Exception,
+        /"hello" not defined in/
+      );
+
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('{{^hello}}{{/hello}}', {
+            strict: true
+          });
+
+          template({});
+        },
+        Exception,
+        /"hello" not defined in/
+      );
+
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile(
+            '{{#hello.bar}}{{/hello.bar}}',
+            { strict: true }
+          );
+
+          template({ hello: {} });
+        },
+        Exception,
+        /"bar" not defined in/
+      );
     });
 
     it('should allow undefined parameters when passed to helpers', function() {
-      var template = CompilerContext.compile('{{#unless foo}}success{{/unless}}', {strict: true});
+      var template = CompilerContext.compile(
+        '{{#unless foo}}success{{/unless}}',
+        { strict: true }
+      );
       equals(template({}), 'success');
     });
 
     it('should allow undefined hash when passed to helpers', function() {
-      var template = CompilerContext.compile('{{helper value=@foo}}', {strict: true});
+      var template = CompilerContext.compile('{{helper value=@foo}}', {
+        strict: true
+      });
       var helpers = {
         helper: function(options) {
           equals('value' in options.hash, true);
@@ -93,19 +144,27 @@ describe('strict', function() {
           return 'success';
         }
       };
-      equals(template({}, {helpers: helpers}), 'success');
+      equals(template({}, { helpers: helpers }), 'success');
     });
 
     it('should show error location on missing property lookup', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('\n\n\n   {{hello}}', {strict: true});
-        template({});
-      }, Exception, '"hello" not defined in [object Object] - 4:5');
+      shouldThrow(
+        function() {
+          var template = CompilerContext.compile('\n\n\n   {{hello}}', {
+            strict: true
+          });
+          template({});
+        },
+        Exception,
+        '"hello" not defined in [object Object] - 4:5'
+      );
     });
 
     it('should error contains correct location properties on missing property lookup', function() {
       try {
-        var template = CompilerContext.compile('\n\n\n   {{hello}}', {strict: true});
+        var template = CompilerContext.compile('\n\n\n   {{hello}}', {
+          strict: true
+        });
         template({});
       } catch (error) {
         equals(error.lineNumber, 4);
@@ -118,25 +177,33 @@ describe('strict', function() {
 
   describe('assume objects', function() {
     it('should ignore missing property', function() {
-      var template = CompilerContext.compile('{{hello}}', {assumeObjects: true});
+      var template = CompilerContext.compile('{{hello}}', {
+        assumeObjects: true
+      });
 
       equal(template({}), '');
     });
     it('should ignore missing child', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', {assumeObjects: true});
+      var template = CompilerContext.compile('{{hello.bar}}', {
+        assumeObjects: true
+      });
 
-      equal(template({hello: {}}), '');
+      equal(template({ hello: {} }), '');
     });
     it('should error on missing object', function() {
       shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello.bar}}', {assumeObjects: true});
+        var template = CompilerContext.compile('{{hello.bar}}', {
+          assumeObjects: true
+        });
 
         template({});
       }, Error);
     });
     it('should error on missing context', function() {
       shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', {assumeObjects: true});
+        var template = CompilerContext.compile('{{hello}}', {
+          assumeObjects: true
+        });
 
         template();
       }, Error);
@@ -144,14 +211,18 @@ describe('strict', function() {
 
     it('should error on missing data lookup', function() {
       shouldThrow(function() {
-        var template = CompilerContext.compile('{{@hello.bar}}', {assumeObjects: true});
+        var template = CompilerContext.compile('{{@hello.bar}}', {
+          assumeObjects: true
+        });
 
         template();
       }, Error);
     });
 
     it('should execute blockHelperMissing', function() {
-      var template = CompilerContext.compile('{{^hello}}foo{{/hello}}', {assumeObjects: true});
+      var template = CompilerContext.compile('{{^hello}}foo{{/hello}}', {
+        assumeObjects: true
+      });
 
       equals(template({}), 'foo');
     });
diff --git a/spec/string-params.js b/spec/string-params.js
index b76f291f7..9f83611a4 100644
--- a/spec/string-params.js
+++ b/spec/string-params.js
@@ -1,6 +1,8 @@
 describe('string params mode', function() {
   it('arguments to helpers can be retrieved from options hash in string form', function() {
-    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {stringParams: true});
+    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {
+      stringParams: true
+    });
 
     var helpers = {
       wycats: function(passiveVoice, noun) {
@@ -8,57 +10,99 @@ describe('string params mode', function() {
       }
     };
 
-    var result = template({}, {helpers: helpers});
+    var result = template({}, { helpers: helpers });
 
-    equals(result, 'HELP ME MY BOSS is.a slave.driver', 'String parameters output');
+    equals(
+      result,
+      'HELP ME MY BOSS is.a slave.driver',
+      'String parameters output'
+    );
   });
 
   it('when using block form, arguments to helpers can be retrieved from options hash in string form', function() {
-    var template = CompilerContext.compile('{{#wycats is.a slave.driver}}help :({{/wycats}}', {stringParams: true});
+    var template = CompilerContext.compile(
+      '{{#wycats is.a slave.driver}}help :({{/wycats}}',
+      { stringParams: true }
+    );
 
     var helpers = {
       wycats: function(passiveVoice, noun, options) {
-        return 'HELP ME MY BOSS ' + passiveVoice + ' ' +
-                noun + ': ' + options.fn(this);
+        return (
+          'HELP ME MY BOSS ' +
+          passiveVoice +
+          ' ' +
+          noun +
+          ': ' +
+          options.fn(this)
+        );
       }
     };
 
-    var result = template({}, {helpers: helpers});
+    var result = template({}, { helpers: helpers });
 
-    equals(result, 'HELP ME MY BOSS is.a slave.driver: help :(', 'String parameters output');
+    equals(
+      result,
+      'HELP ME MY BOSS is.a slave.driver: help :(',
+      'String parameters output'
+    );
   });
 
   it('when inside a block in String mode, .. passes the appropriate context in the options hash', function() {
-    var template = CompilerContext.compile('{{#with dale}}{{tomdale ../need dad.joke}}{{/with}}', {stringParams: true});
+    var template = CompilerContext.compile(
+      '{{#with dale}}{{tomdale ../need dad.joke}}{{/with}}',
+      { stringParams: true }
+    );
 
     var helpers = {
       tomdale: function(desire, noun, options) {
-        return 'STOP ME FROM READING HACKER NEWS I ' +
-                options.contexts[0][desire] + ' ' + noun;
+        return (
+          'STOP ME FROM READING HACKER NEWS I ' +
+          options.contexts[0][desire] +
+          ' ' +
+          noun
+        );
       },
 
-      'with': function(context, options) {
+      with: function(context, options) {
         return options.fn(options.contexts[0][context]);
       }
     };
 
-    var result = template({
-      dale: {},
+    var result = template(
+      {
+        dale: {},
 
-      need: 'need-a'
-    }, {helpers: helpers});
-
-    equals(result, 'STOP ME FROM READING HACKER NEWS I need-a dad.joke', 'Proper context variable output');
+        need: 'need-a'
+      },
+      { helpers: helpers }
+    );
+
+    equals(
+      result,
+      'STOP ME FROM READING HACKER NEWS I need-a dad.joke',
+      'Proper context variable output'
+    );
   });
 
   it('information about the types is passed along', function() {
-    var template = CompilerContext.compile("{{tomdale 'need' dad.joke true false}}", { stringParams: true });
+    var template = CompilerContext.compile(
+      "{{tomdale 'need' dad.joke true false}}",
+      { stringParams: true }
+    );
 
     var helpers = {
       tomdale: function(desire, noun, trueBool, falseBool, options) {
         equal(options.types[0], 'StringLiteral', 'the string type is passed');
-        equal(options.types[1], 'PathExpression', 'the expression type is passed');
-        equal(options.types[2], 'BooleanLiteral', 'the expression type is passed');
+        equal(
+          options.types[1],
+          'PathExpression',
+          'the expression type is passed'
+        );
+        equal(
+          options.types[2],
+          'BooleanLiteral',
+          'the expression type is passed'
+        );
         equal(desire, 'need', 'the string form is passed for strings');
         equal(noun, 'dad.joke', 'the string form is passed for expressions');
         equal(trueBool, true, 'raw booleans are passed through');
@@ -72,7 +116,10 @@ describe('string params mode', function() {
   });
 
   it('hash parameters get type information', function() {
-    var template = CompilerContext.compile("{{tomdale he.says desire='need' noun=dad.joke bool=true}}", { stringParams: true });
+    var template = CompilerContext.compile(
+      "{{tomdale he.says desire='need' noun=dad.joke bool=true}}",
+      { stringParams: true }
+    );
 
     var helpers = {
       tomdale: function(exclamation, options) {
@@ -94,9 +141,12 @@ describe('string params mode', function() {
   });
 
   it('hash parameters get context information', function() {
-    var template = CompilerContext.compile("{{#with dale}}{{tomdale he.says desire='need' noun=../dad/joke bool=true}}{{/with}}", { stringParams: true });
+    var template = CompilerContext.compile(
+      "{{#with dale}}{{tomdale he.says desire='need' noun=../dad/joke bool=true}}{{/with}}",
+      { stringParams: true }
+    );
 
-    var context = {dale: {}};
+    var context = { dale: {} };
 
     var helpers = {
       tomdale: function(exclamation, options) {
@@ -110,7 +160,7 @@ describe('string params mode', function() {
         equal(options.hash.bool, true);
         return 'Helper called';
       },
-      'with': function(withContext, options) {
+      with: function(withContext, options) {
         return options.fn(options.contexts[0][withContext]);
       }
     };
@@ -120,34 +170,52 @@ describe('string params mode', function() {
   });
 
   it('when inside a block in String mode, .. passes the appropriate context in the options hash to a block helper', function() {
-    var template = CompilerContext.compile('{{#with dale}}{{#tomdale ../need dad.joke}}wot{{/tomdale}}{{/with}}', {stringParams: true});
+    var template = CompilerContext.compile(
+      '{{#with dale}}{{#tomdale ../need dad.joke}}wot{{/tomdale}}{{/with}}',
+      { stringParams: true }
+    );
 
     var helpers = {
       tomdale: function(desire, noun, options) {
-        return 'STOP ME FROM READING HACKER NEWS I ' +
-                options.contexts[0][desire] + ' ' + noun + ' ' +
-                options.fn(this);
+        return (
+          'STOP ME FROM READING HACKER NEWS I ' +
+          options.contexts[0][desire] +
+          ' ' +
+          noun +
+          ' ' +
+          options.fn(this)
+        );
       },
 
-      'with': function(context, options) {
+      with: function(context, options) {
         return options.fn(options.contexts[0][context]);
       }
     };
 
-    var result = template({
-      dale: {},
+    var result = template(
+      {
+        dale: {},
 
-      need: 'need-a'
-    }, {helpers: helpers});
-
-    equals(result, 'STOP ME FROM READING HACKER NEWS I need-a dad.joke wot', 'Proper context variable output');
+        need: 'need-a'
+      },
+      { helpers: helpers }
+    );
+
+    equals(
+      result,
+      'STOP ME FROM READING HACKER NEWS I need-a dad.joke wot',
+      'Proper context variable output'
+    );
   });
 
   it('with nested block ambiguous', function() {
-    var template = CompilerContext.compile('{{#with content}}{{#view}}{{firstName}} {{lastName}}{{/view}}{{/with}}', {stringParams: true});
+    var template = CompilerContext.compile(
+      '{{#with content}}{{#view}}{{firstName}} {{lastName}}{{/view}}{{/with}}',
+      { stringParams: true }
+    );
 
     var helpers = {
-      'with': function() {
+      with: function() {
         return 'WITH';
       },
       view: function() {
@@ -155,12 +223,14 @@ describe('string params mode', function() {
       }
     };
 
-    var result = template({}, {helpers: helpers});
+    var result = template({}, { helpers: helpers });
     equals(result, 'WITH');
   });
 
   it('should handle DATA', function() {
-    var template = CompilerContext.compile('{{foo @bar}}', { stringParams: true });
+    var template = CompilerContext.compile('{{foo @bar}}', {
+      stringParams: true
+    });
 
     var helpers = {
       foo: function(bar, options) {
diff --git a/spec/subexpressions.js b/spec/subexpressions.js
index dad741e4a..228510511 100644
--- a/spec/subexpressions.js
+++ b/spec/subexpressions.js
@@ -31,7 +31,7 @@ describe('subexpressions', function() {
   it('mixed paths and helpers', function() {
     var string = '{{blog baz.bat (equal a b) baz.bar}}';
 
-    var context = { bar: 'LOL', baz: {bat: 'foo!', bar: 'bar!'} };
+    var context = { bar: 'LOL', baz: { bat: 'foo!', bar: 'bar!' } };
     var helpers = {
       blog: function(val, that, theOther) {
         return 'val is ' + val + ', ' + that + ' and ' + theOther;
@@ -59,7 +59,7 @@ describe('subexpressions', function() {
   });
 
   it('GH-800 : Complex subexpressions', function() {
-    var context = {a: 'a', b: 'b', c: {c: 'c'}, d: 'd', e: {e: 'e'}};
+    var context = { a: 'a', b: 'b', c: { c: 'c' }, d: 'd', e: { e: 'e' } };
     var helpers = {
       dash: function(a, b) {
         return a + '-' + b;
@@ -69,7 +69,11 @@ describe('subexpressions', function() {
       }
     };
 
-    shouldCompileTo("{{dash 'abc' (concat a b)}}", [context, helpers], 'abc-ab');
+    shouldCompileTo(
+      "{{dash 'abc' (concat a b)}}",
+      [context, helpers],
+      'abc-ab'
+    );
     shouldCompileTo('{{dash d (concat a b)}}', [context, helpers], 'd-ab');
     shouldCompileTo('{{dash c.c (concat a b)}}', [context, helpers], 'c-ab');
     shouldCompileTo('{{dash (concat a b) c.c}}', [context, helpers], 'ab-c');
@@ -122,24 +126,36 @@ describe('subexpressions', function() {
   });
 
   it('multiple subexpressions in a hash', function() {
-    var string = '{{input aria-label=(t "Name") placeholder=(t "Example User")}}';
+    var string =
+      '{{input aria-label=(t "Name") placeholder=(t "Example User")}}';
 
     var helpers = {
       input: function(options) {
         var hash = options.hash;
         var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
         var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
-        return new Handlebars.SafeString('<input aria-label="' + ariaLabel + '" placeholder="' + placeholder + '" />');
+        return new Handlebars.SafeString(
+          '<input aria-label="' +
+            ariaLabel +
+            '" placeholder="' +
+            placeholder +
+            '" />'
+        );
       },
       t: function(defaultString) {
         return new Handlebars.SafeString(defaultString);
       }
     };
-    shouldCompileTo(string, [{}, helpers], '<input aria-label="Name" placeholder="Example User" />');
+    shouldCompileTo(
+      string,
+      [{}, helpers],
+      '<input aria-label="Name" placeholder="Example User" />'
+    );
   });
 
   it('multiple subexpressions in a hash with context', function() {
-    var string = '{{input aria-label=(t item.field) placeholder=(t item.placeholder)}}';
+    var string =
+      '{{input aria-label=(t item.field) placeholder=(t item.placeholder)}}';
 
     var context = {
       item: {
@@ -153,44 +169,82 @@ describe('subexpressions', function() {
         var hash = options.hash;
         var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
         var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
-        return new Handlebars.SafeString('<input aria-label="' + ariaLabel + '" placeholder="' + placeholder + '" />');
+        return new Handlebars.SafeString(
+          '<input aria-label="' +
+            ariaLabel +
+            '" placeholder="' +
+            placeholder +
+            '" />'
+        );
       },
       t: function(defaultString) {
         return new Handlebars.SafeString(defaultString);
       }
     };
-    shouldCompileTo(string, [context, helpers], '<input aria-label="Name" placeholder="Example User" />');
+    shouldCompileTo(
+      string,
+      [context, helpers],
+      '<input aria-label="Name" placeholder="Example User" />'
+    );
   });
 
   it('in string params mode,', function() {
-    var template = CompilerContext.compile('{{snog (blorg foo x=y) yeah a=b}}', {stringParams: true});
+    var template = CompilerContext.compile(
+      '{{snog (blorg foo x=y) yeah a=b}}',
+      { stringParams: true }
+    );
 
     var helpers = {
       snog: function(a, b, options) {
         equals(a, 'foo');
-        equals(options.types.length, 2, 'string params for outer helper processed correctly');
-        equals(options.types[0], 'SubExpression', 'string params for outer helper processed correctly');
-        equals(options.types[1], 'PathExpression', 'string params for outer helper processed correctly');
+        equals(
+          options.types.length,
+          2,
+          'string params for outer helper processed correctly'
+        );
+        equals(
+          options.types[0],
+          'SubExpression',
+          'string params for outer helper processed correctly'
+        );
+        equals(
+          options.types[1],
+          'PathExpression',
+          'string params for outer helper processed correctly'
+        );
         return a + b;
       },
 
       blorg: function(a, options) {
-        equals(options.types.length, 1, 'string params for inner helper processed correctly');
-        equals(options.types[0], 'PathExpression', 'string params for inner helper processed correctly');
+        equals(
+          options.types.length,
+          1,
+          'string params for inner helper processed correctly'
+        );
+        equals(
+          options.types[0],
+          'PathExpression',
+          'string params for inner helper processed correctly'
+        );
         return a;
       }
     };
 
-    var result = template({
-      foo: {},
-      yeah: {}
-    }, {helpers: helpers});
+    var result = template(
+      {
+        foo: {},
+        yeah: {}
+      },
+      { helpers: helpers }
+    );
 
     equals(result, 'fooyeah');
   });
 
   it('as hashes in string params mode', function() {
-    var template = CompilerContext.compile('{{blog fun=(bork)}}', {stringParams: true});
+    var template = CompilerContext.compile('{{blog fun=(bork)}}', {
+      stringParams: true
+    });
 
     var helpers = {
       blog: function(options) {
@@ -202,7 +256,7 @@ describe('subexpressions', function() {
       }
     };
 
-    var result = template({}, {helpers: helpers});
+    var result = template({}, { helpers: helpers });
     equals(result, 'val is BORK');
   });
 
diff --git a/spec/tokenizer.js b/spec/tokenizer.js
index ec15d597f..ed1666038 100644
--- a/spec/tokenizer.js
+++ b/spec/tokenizer.js
@@ -15,18 +15,18 @@ describe('Tokenizer', function() {
 
   function tokenize(template) {
     var parser = Handlebars.Parser,
-        lexer = parser.lexer;
+      lexer = parser.lexer;
 
     lexer.setInput(template);
     var out = [],
-        token;
+      token;
 
     while ((token = lexer.lex())) {
       var result = parser.terminals_[token] || token;
       if (!result || result === 'EOF' || result === 'INVALID') {
         break;
       }
-      out.push({name: result, text: lexer.yytext});
+      out.push({ name: result, text: lexer.yytext });
     }
 
     return out;
@@ -55,7 +55,16 @@ describe('Tokenizer', function() {
 
   it('supports escaping delimiters', function() {
     var result = tokenize('{{foo}} \\{{bar}} {{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' ');
     shouldBeToken(result[4], 'CONTENT', '{{bar}} ');
@@ -63,7 +72,14 @@ describe('Tokenizer', function() {
 
   it('supports escaping multiple delimiters', function() {
     var result = tokenize('{{foo}} \\{{bar}} \\{{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'CONTENT', 'CONTENT']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'CONTENT',
+      'CONTENT'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' ');
     shouldBeToken(result[4], 'CONTENT', '{{bar}} ');
@@ -72,14 +88,35 @@ describe('Tokenizer', function() {
 
   it('supports escaping a triple stash', function() {
     var result = tokenize('{{foo}} \\{{{bar}}} {{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[4], 'CONTENT', '{{{bar}}} ');
   });
 
   it('supports escaping escape character', function() {
     var result = tokenize('{{foo}} \\\\{{bar}} {{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' \\');
     shouldBeToken(result[5], 'ID', 'bar');
@@ -87,7 +124,19 @@ describe('Tokenizer', function() {
 
   it('supports escaping multiple escape characters', function() {
     var result = tokenize('{{foo}} \\\\{{bar}} \\\\{{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' \\');
     shouldBeToken(result[5], 'ID', 'bar');
@@ -97,7 +146,18 @@ describe('Tokenizer', function() {
 
   it('supports escaped mustaches after escaped escape characters', function() {
     var result = tokenize('{{foo}} \\\\{{bar}} \\{{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN', 'ID', 'CLOSE', 'CONTENT', 'CONTENT', 'CONTENT']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'CONTENT',
+      'CONTENT'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' \\');
     shouldBeToken(result[4], 'OPEN', '{{');
@@ -108,7 +168,17 @@ describe('Tokenizer', function() {
 
   it('supports escaped escape characters after escaped mustaches', function() {
     var result = tokenize('{{foo}} \\{{bar}} \\\\{{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'CONTENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'CONTENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[4], 'CONTENT', '{{bar}} ');
     shouldBeToken(result[5], 'CONTENT', '\\');
@@ -118,7 +188,19 @@ describe('Tokenizer', function() {
 
   it('supports escaped escape character on a triple stash', function() {
     var result = tokenize('{{foo}} \\\\{{{bar}}} {{baz}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'CLOSE', 'CONTENT', 'OPEN_UNESCAPED', 'ID', 'CLOSE_UNESCAPED', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN_UNESCAPED',
+      'ID',
+      'CLOSE_UNESCAPED',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
 
     shouldBeToken(result[3], 'CONTENT', ' \\');
     shouldBeToken(result[5], 'ID', 'bar');
@@ -133,7 +215,15 @@ describe('Tokenizer', function() {
     var result = tokenize('{{foo.bar}}');
     shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'CLOSE']);
 
-    shouldMatchTokens(tokenize('{{foo.bar.baz}}'), ['OPEN', 'ID', 'SEP', 'ID', 'SEP', 'ID', 'CLOSE']);
+    shouldMatchTokens(tokenize('{{foo.bar.baz}}'), [
+      'OPEN',
+      'ID',
+      'SEP',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE'
+    ]);
   });
 
   it('allows path literals with []', function() {
@@ -143,7 +233,18 @@ describe('Tokenizer', function() {
 
   it('allows multiple path literals on a line with []', function() {
     var result = tokenize('{{foo.[bar]}}{{foo.[baz]}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'CLOSE', 'OPEN', 'ID', 'SEP', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE',
+      'OPEN',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE'
+    ]);
   });
 
   it('allows escaped literals in []', function() {
@@ -158,13 +259,29 @@ describe('Tokenizer', function() {
 
   it('tokenizes a path as "OPEN (ID SEP)* ID CLOSE"', function() {
     var result = tokenize('{{../foo/bar}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'SEP', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'SEP',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'ID', '..');
   });
 
   it('tokenizes a path with .. as a parent path', function() {
     var result = tokenize('{{../foo.bar}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'SEP', 'ID', 'SEP', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'SEP',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'ID', '..');
   });
 
@@ -216,7 +333,15 @@ describe('Tokenizer', function() {
 
   it('tokenizes a partial space at the }); as "OPEN_PARTIAL ID CLOSE"', function() {
     var result = tokenize('{{>foo/bar.baz  }}');
-    shouldMatchTokens(result, ['OPEN_PARTIAL', 'ID', 'SEP', 'ID', 'SEP', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_PARTIAL',
+      'ID',
+      'SEP',
+      'ID',
+      'SEP',
+      'ID',
+      'CLOSE'
+    ]);
   });
 
   it('tokenizes partial block declarations', function() {
@@ -225,34 +350,69 @@ describe('Tokenizer', function() {
   });
   it('tokenizes a comment as "COMMENT"', function() {
     var result = tokenize('foo {{! this is a comment }} bar {{ baz }}');
-    shouldMatchTokens(result, ['CONTENT', 'COMMENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'CONTENT',
+      'COMMENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'COMMENT', '{{! this is a comment }}');
   });
 
   it('tokenizes a block comment as "COMMENT"', function() {
     var result = tokenize('foo {{!-- this is a {{comment}} --}} bar {{ baz }}');
-    shouldMatchTokens(result, ['CONTENT', 'COMMENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'CONTENT',
+      'COMMENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'COMMENT', '{{!-- this is a {{comment}} --}}');
   });
 
   it('tokenizes a block comment with whitespace as "COMMENT"', function() {
-    var result = tokenize('foo {{!-- this is a\n{{comment}}\n--}} bar {{ baz }}');
-    shouldMatchTokens(result, ['CONTENT', 'COMMENT', 'CONTENT', 'OPEN', 'ID', 'CLOSE']);
+    var result = tokenize(
+      'foo {{!-- this is a\n{{comment}}\n--}} bar {{ baz }}'
+    );
+    shouldMatchTokens(result, [
+      'CONTENT',
+      'COMMENT',
+      'CONTENT',
+      'OPEN',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'COMMENT', '{{!-- this is a\n{{comment}}\n--}}');
   });
 
   it('tokenizes open and closing blocks as OPEN_BLOCK, ID, CLOSE ..., OPEN_ENDBLOCK ID CLOSE', function() {
     var result = tokenize('{{#foo}}content{{/foo}}');
-    shouldMatchTokens(result, ['OPEN_BLOCK', 'ID', 'CLOSE', 'CONTENT', 'OPEN_ENDBLOCK', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_BLOCK',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN_ENDBLOCK',
+      'ID',
+      'CLOSE'
+    ]);
   });
 
   it('tokenizes directives', function() {
-    shouldMatchTokens(
-        tokenize('{{#*foo}}content{{/foo}}'),
-        ['OPEN_BLOCK', 'ID', 'CLOSE', 'CONTENT', 'OPEN_ENDBLOCK', 'ID', 'CLOSE']);
-    shouldMatchTokens(
-        tokenize('{{*foo}}'),
-        ['OPEN', 'ID', 'CLOSE']);
+    shouldMatchTokens(tokenize('{{#*foo}}content{{/foo}}'), [
+      'OPEN_BLOCK',
+      'ID',
+      'CLOSE',
+      'CONTENT',
+      'OPEN_ENDBLOCK',
+      'ID',
+      'CLOSE'
+    ]);
+    shouldMatchTokens(tokenize('{{*foo}}'), ['OPEN', 'ID', 'CLOSE']);
   });
 
   it('tokenizes inverse sections as "INVERSE"', function() {
@@ -351,28 +511,98 @@ describe('Tokenizer', function() {
     shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'EQUALS', 'ID', 'CLOSE']);
 
     result = tokenize('{{ foo bar baz=bat }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'ID',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar baz=1 }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'NUMBER', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'NUMBER',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar baz=true }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'BOOLEAN', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'BOOLEAN',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar baz=false }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'BOOLEAN', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'BOOLEAN',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar\n  baz=bat }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'ID',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar baz="bat" }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'STRING', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'STRING',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{ foo bar baz="bat" bam=wot }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'STRING', 'ID', 'EQUALS', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'STRING',
+      'ID',
+      'EQUALS',
+      'ID',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{foo omg bar=baz bat="bam"}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'ID', 'EQUALS', 'ID', 'ID', 'EQUALS', 'STRING', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'ID',
+      'EQUALS',
+      'ID',
+      'ID',
+      'EQUALS',
+      'STRING',
+      'CLOSE'
+    ]);
     shouldBeToken(result[2], 'ID', 'omg');
   });
 
@@ -386,7 +616,15 @@ describe('Tokenizer', function() {
     shouldBeToken(result[3], 'ID', 'bar');
 
     result = tokenize('{{ foo bar=@baz }}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'ID', 'EQUALS', 'DATA', 'ID', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'ID',
+      'EQUALS',
+      'DATA',
+      'ID',
+      'CLOSE'
+    ]);
     shouldBeToken(result[5], 'ID', 'baz');
   });
 
@@ -400,12 +638,27 @@ describe('Tokenizer', function() {
 
   it('tokenizes subexpressions', function() {
     var result = tokenize('{{foo (bar)}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'OPEN_SEXPR', 'ID', 'CLOSE_SEXPR', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'CLOSE_SEXPR',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'ID', 'foo');
     shouldBeToken(result[3], 'ID', 'bar');
 
     result = tokenize('{{foo (a-x b-y)}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'OPEN_SEXPR', 'ID', 'ID', 'CLOSE_SEXPR', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'ID',
+      'CLOSE_SEXPR',
+      'CLOSE'
+    ]);
     shouldBeToken(result[1], 'ID', 'foo');
     shouldBeToken(result[3], 'ID', 'a-x');
     shouldBeToken(result[4], 'ID', 'b-y');
@@ -413,7 +666,21 @@ describe('Tokenizer', function() {
 
   it('tokenizes nested subexpressions', function() {
     var result = tokenize('{{foo (bar (lol rofl)) (baz)}}');
-    shouldMatchTokens(result, ['OPEN', 'ID', 'OPEN_SEXPR', 'ID', 'OPEN_SEXPR', 'ID', 'ID', 'CLOSE_SEXPR', 'CLOSE_SEXPR', 'OPEN_SEXPR', 'ID', 'CLOSE_SEXPR', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'ID',
+      'CLOSE_SEXPR',
+      'CLOSE_SEXPR',
+      'OPEN_SEXPR',
+      'ID',
+      'CLOSE_SEXPR',
+      'CLOSE'
+    ]);
     shouldBeToken(result[3], 'ID', 'bar');
     shouldBeToken(result[5], 'ID', 'lol');
     shouldBeToken(result[6], 'ID', 'rofl');
@@ -421,29 +688,109 @@ describe('Tokenizer', function() {
   });
 
   it('tokenizes nested subexpressions: literals', function() {
-    var result = tokenize("{{foo (bar (lol true) false) (baz 1) (blah 'b') (blorg \"c\")}}");
-    shouldMatchTokens(result, ['OPEN', 'ID', 'OPEN_SEXPR', 'ID', 'OPEN_SEXPR', 'ID', 'BOOLEAN', 'CLOSE_SEXPR', 'BOOLEAN', 'CLOSE_SEXPR', 'OPEN_SEXPR', 'ID', 'NUMBER', 'CLOSE_SEXPR', 'OPEN_SEXPR', 'ID', 'STRING', 'CLOSE_SEXPR', 'OPEN_SEXPR', 'ID', 'STRING', 'CLOSE_SEXPR', 'CLOSE']);
+    var result = tokenize(
+      '{{foo (bar (lol true) false) (baz 1) (blah \'b\') (blorg "c")}}'
+    );
+    shouldMatchTokens(result, [
+      'OPEN',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'OPEN_SEXPR',
+      'ID',
+      'BOOLEAN',
+      'CLOSE_SEXPR',
+      'BOOLEAN',
+      'CLOSE_SEXPR',
+      'OPEN_SEXPR',
+      'ID',
+      'NUMBER',
+      'CLOSE_SEXPR',
+      'OPEN_SEXPR',
+      'ID',
+      'STRING',
+      'CLOSE_SEXPR',
+      'OPEN_SEXPR',
+      'ID',
+      'STRING',
+      'CLOSE_SEXPR',
+      'CLOSE'
+    ]);
   });
 
   it('tokenizes block params', function() {
     var result = tokenize('{{#foo as |bar|}}');
-    shouldMatchTokens(result, ['OPEN_BLOCK', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_BLOCK',
+      'ID',
+      'OPEN_BLOCK_PARAMS',
+      'ID',
+      'CLOSE_BLOCK_PARAMS',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{#foo as |bar baz|}}');
-    shouldMatchTokens(result, ['OPEN_BLOCK', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_BLOCK',
+      'ID',
+      'OPEN_BLOCK_PARAMS',
+      'ID',
+      'ID',
+      'CLOSE_BLOCK_PARAMS',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{#foo as | bar baz |}}');
-    shouldMatchTokens(result, ['OPEN_BLOCK', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_BLOCK',
+      'ID',
+      'OPEN_BLOCK_PARAMS',
+      'ID',
+      'ID',
+      'CLOSE_BLOCK_PARAMS',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{#foo as as | bar baz |}}');
-    shouldMatchTokens(result, ['OPEN_BLOCK', 'ID', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_BLOCK',
+      'ID',
+      'ID',
+      'OPEN_BLOCK_PARAMS',
+      'ID',
+      'ID',
+      'CLOSE_BLOCK_PARAMS',
+      'CLOSE'
+    ]);
 
     result = tokenize('{{else foo as |bar baz|}}');
-    shouldMatchTokens(result, ['OPEN_INVERSE_CHAIN', 'ID', 'OPEN_BLOCK_PARAMS', 'ID', 'ID', 'CLOSE_BLOCK_PARAMS', 'CLOSE']);
+    shouldMatchTokens(result, [
+      'OPEN_INVERSE_CHAIN',
+      'ID',
+      'OPEN_BLOCK_PARAMS',
+      'ID',
+      'ID',
+      'CLOSE_BLOCK_PARAMS',
+      'CLOSE'
+    ]);
   });
 
   it('tokenizes raw blocks', function() {
-    var result = tokenize('{{{{a}}}} abc {{{{/a}}}} aaa {{{{a}}}} abc {{{{/a}}}}');
-    shouldMatchTokens(result, ['OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK', 'CONTENT', 'OPEN_RAW_BLOCK', 'ID', 'CLOSE_RAW_BLOCK', 'CONTENT', 'END_RAW_BLOCK']);
+    var result = tokenize(
+      '{{{{a}}}} abc {{{{/a}}}} aaa {{{{a}}}} abc {{{{/a}}}}'
+    );
+    shouldMatchTokens(result, [
+      'OPEN_RAW_BLOCK',
+      'ID',
+      'CLOSE_RAW_BLOCK',
+      'CONTENT',
+      'END_RAW_BLOCK',
+      'CONTENT',
+      'OPEN_RAW_BLOCK',
+      'ID',
+      'CLOSE_RAW_BLOCK',
+      'CONTENT',
+      'END_RAW_BLOCK'
+    ]);
   });
 });
diff --git a/spec/track-ids.js b/spec/track-ids.js
index 30a46617d..f7ad7abda 100644
--- a/spec/track-ids.js
+++ b/spec/track-ids.js
@@ -1,7 +1,7 @@
 describe('track ids', function() {
   var context;
   beforeEach(function() {
-    context = {is: {a: 'foo'}, slave: {driver: 'bar'}};
+    context = { is: { a: 'foo' }, slave: { driver: 'bar' } };
   });
 
   it('should not include anything without the flag', function() {
@@ -16,38 +16,70 @@ describe('track ids', function() {
       }
     };
 
-    equals(template({}, {helpers: helpers}), 'success');
+    equals(template({}, { helpers: helpers }), 'success');
   });
   it('should include argument ids', function() {
-    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {trackIds: true});
+    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {
+      trackIds: true
+    });
 
     var helpers = {
       wycats: function(passiveVoice, noun, options) {
         equal(options.ids[0], 'is.a');
         equal(options.ids[1], 'slave.driver');
 
-        return 'HELP ME MY BOSS ' + options.ids[0] + ':' + passiveVoice + ' ' + options.ids[1] + ':' + noun;
+        return (
+          'HELP ME MY BOSS ' +
+          options.ids[0] +
+          ':' +
+          passiveVoice +
+          ' ' +
+          options.ids[1] +
+          ':' +
+          noun
+        );
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS is.a:foo slave.driver:bar');
+    equals(
+      template(context, { helpers: helpers }),
+      'HELP ME MY BOSS is.a:foo slave.driver:bar'
+    );
   });
   it('should include hash ids', function() {
-    var template = CompilerContext.compile('{{wycats bat=is.a baz=slave.driver}}', {trackIds: true});
+    var template = CompilerContext.compile(
+      '{{wycats bat=is.a baz=slave.driver}}',
+      { trackIds: true }
+    );
 
     var helpers = {
       wycats: function(options) {
         equal(options.hashIds.bat, 'is.a');
         equal(options.hashIds.baz, 'slave.driver');
 
-        return 'HELP ME MY BOSS ' + options.hashIds.bat + ':' + options.hash.bat + ' ' + options.hashIds.baz + ':' + options.hash.baz;
+        return (
+          'HELP ME MY BOSS ' +
+          options.hashIds.bat +
+          ':' +
+          options.hash.bat +
+          ' ' +
+          options.hashIds.baz +
+          ':' +
+          options.hash.baz
+        );
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS is.a:foo slave.driver:bar');
+    equals(
+      template(context, { helpers: helpers }),
+      'HELP ME MY BOSS is.a:foo slave.driver:bar'
+    );
   });
   it('should note ../ and ./ references', function() {
-    var template = CompilerContext.compile('{{wycats ./is.a ../slave.driver this.is.a this}}', {trackIds: true});
+    var template = CompilerContext.compile(
+      '{{wycats ./is.a ../slave.driver this.is.a this}}',
+      { trackIds: true }
+    );
 
     var helpers = {
       wycats: function(passiveVoice, noun, thiz, thiz2, options) {
@@ -56,29 +88,57 @@ describe('track ids', function() {
         equal(options.ids[2], 'is.a');
         equal(options.ids[3], '');
 
-        return 'HELP ME MY BOSS ' + options.ids[0] + ':' + passiveVoice + ' ' + options.ids[1] + ':' + noun;
+        return (
+          'HELP ME MY BOSS ' +
+          options.ids[0] +
+          ':' +
+          passiveVoice +
+          ' ' +
+          options.ids[1] +
+          ':' +
+          noun
+        );
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS is.a:foo ../slave.driver:undefined');
+    equals(
+      template(context, { helpers: helpers }),
+      'HELP ME MY BOSS is.a:foo ../slave.driver:undefined'
+    );
   });
   it('should note @data references', function() {
-    var template = CompilerContext.compile('{{wycats @is.a @slave.driver}}', {trackIds: true});
+    var template = CompilerContext.compile('{{wycats @is.a @slave.driver}}', {
+      trackIds: true
+    });
 
     var helpers = {
       wycats: function(passiveVoice, noun, options) {
         equal(options.ids[0], '@is.a');
         equal(options.ids[1], '@slave.driver');
 
-        return 'HELP ME MY BOSS ' + options.ids[0] + ':' + passiveVoice + ' ' + options.ids[1] + ':' + noun;
+        return (
+          'HELP ME MY BOSS ' +
+          options.ids[0] +
+          ':' +
+          passiveVoice +
+          ' ' +
+          options.ids[1] +
+          ':' +
+          noun
+        );
       }
     };
 
-    equals(template({}, {helpers: helpers, data: context}), 'HELP ME MY BOSS @is.a:foo @slave.driver:bar');
+    equals(
+      template({}, { helpers: helpers, data: context }),
+      'HELP ME MY BOSS @is.a:foo @slave.driver:bar'
+    );
   });
 
   it('should return null for constants', function() {
-    var template = CompilerContext.compile('{{wycats 1 "foo" key=false}}', {trackIds: true});
+    var template = CompilerContext.compile('{{wycats 1 "foo" key=false}}', {
+      trackIds: true
+    });
 
     var helpers = {
       wycats: function(passiveVoice, noun, options) {
@@ -86,17 +146,31 @@ describe('track ids', function() {
         equal(options.ids[1], null);
         equal(options.hashIds.key, null);
 
-        return 'HELP ME MY BOSS ' + passiveVoice + ' ' + noun + ' ' + options.hash.key;
+        return (
+          'HELP ME MY BOSS ' +
+          passiveVoice +
+          ' ' +
+          noun +
+          ' ' +
+          options.hash.key
+        );
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS 1 foo false');
+    equals(
+      template(context, { helpers: helpers }),
+      'HELP ME MY BOSS 1 foo false'
+    );
   });
   it('should return true for subexpressions', function() {
-    var template = CompilerContext.compile('{{wycats (sub)}}', {trackIds: true});
+    var template = CompilerContext.compile('{{wycats (sub)}}', {
+      trackIds: true
+    });
 
     var helpers = {
-      sub: function() { return 1; },
+      sub: function() {
+        return 1;
+      },
       wycats: function(passiveVoice, options) {
         equal(options.ids[0], true);
 
@@ -104,28 +178,43 @@ describe('track ids', function() {
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS 1');
+    equals(template(context, { helpers: helpers }), 'HELP ME MY BOSS 1');
   });
 
   it('should use block param paths', function() {
-    var template = CompilerContext.compile('{{#doIt as |is|}}{{wycats is.a slave.driver is}}{{/doIt}}', {trackIds: true});
+    var template = CompilerContext.compile(
+      '{{#doIt as |is|}}{{wycats is.a slave.driver is}}{{/doIt}}',
+      { trackIds: true }
+    );
 
     var helpers = {
       doIt: function(options) {
         var blockParams = [this.is];
         blockParams.path = ['zomg'];
-        return options.fn(this, {blockParams: blockParams});
+        return options.fn(this, { blockParams: blockParams });
       },
       wycats: function(passiveVoice, noun, blah, options) {
         equal(options.ids[0], 'zomg.a');
         equal(options.ids[1], 'slave.driver');
         equal(options.ids[2], 'zomg');
 
-        return 'HELP ME MY BOSS ' + options.ids[0] + ':' + passiveVoice + ' ' + options.ids[1] + ':' + noun;
+        return (
+          'HELP ME MY BOSS ' +
+          options.ids[0] +
+          ':' +
+          passiveVoice +
+          ' ' +
+          options.ids[1] +
+          ':' +
+          noun
+        );
       }
     };
 
-    equals(template(context, {helpers: helpers}), 'HELP ME MY BOSS zomg.a:foo slave.driver:bar');
+    equals(
+      template(context, { helpers: helpers }),
+      'HELP ME MY BOSS zomg.a:foo slave.driver:bar'
+    );
   });
 
   describe('builtin helpers', function() {
@@ -140,53 +229,119 @@ describe('track ids', function() {
 
     describe('#each', function() {
       it('should track contextPath for arrays', function() {
-        var template = CompilerContext.compile('{{#each array}}{{wycats name}}{{/each}}', {trackIds: true});
-
-        equals(template({array: [{name: 'foo'}, {name: 'bar'}]}, {helpers: helpers}), 'foo:array.0\nbar:array.1\n');
+        var template = CompilerContext.compile(
+          '{{#each array}}{{wycats name}}{{/each}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template(
+            { array: [{ name: 'foo' }, { name: 'bar' }] },
+            { helpers: helpers }
+          ),
+          'foo:array.0\nbar:array.1\n'
+        );
       });
       it('should track contextPath for keys', function() {
-        var template = CompilerContext.compile('{{#each object}}{{wycats name}}{{/each}}', {trackIds: true});
-
-        equals(template({object: {foo: {name: 'foo'}, bar: {name: 'bar'}}}, {helpers: helpers}), 'foo:object.foo\nbar:object.bar\n');
+        var template = CompilerContext.compile(
+          '{{#each object}}{{wycats name}}{{/each}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template(
+            { object: { foo: { name: 'foo' }, bar: { name: 'bar' } } },
+            { helpers: helpers }
+          ),
+          'foo:object.foo\nbar:object.bar\n'
+        );
       });
       it('should handle nesting', function() {
-        var template = CompilerContext.compile('{{#each .}}{{#each .}}{{wycats name}}{{/each}}{{/each}}', {trackIds: true});
-
-        equals(template({array: [{name: 'foo'}, {name: 'bar'}]}, {helpers: helpers}), 'foo:.array..0\nbar:.array..1\n');
+        var template = CompilerContext.compile(
+          '{{#each .}}{{#each .}}{{wycats name}}{{/each}}{{/each}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template(
+            { array: [{ name: 'foo' }, { name: 'bar' }] },
+            { helpers: helpers }
+          ),
+          'foo:.array..0\nbar:.array..1\n'
+        );
       });
       it('should handle block params', function() {
-        var template = CompilerContext.compile('{{#each array as |value|}}{{blockParams value.name}}{{/each}}', {trackIds: true});
-
-        equals(template({array: [{name: 'foo'}, {name: 'bar'}]}, {helpers: helpers}), 'foo:array.0.name\nbar:array.1.name\n');
+        var template = CompilerContext.compile(
+          '{{#each array as |value|}}{{blockParams value.name}}{{/each}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template(
+            { array: [{ name: 'foo' }, { name: 'bar' }] },
+            { helpers: helpers }
+          ),
+          'foo:array.0.name\nbar:array.1.name\n'
+        );
       });
     });
     describe('#with', function() {
       it('should track contextPath', function() {
-        var template = CompilerContext.compile('{{#with field}}{{wycats name}}{{/with}}', {trackIds: true});
-
-        equals(template({field: {name: 'foo'}}, {helpers: helpers}), 'foo:field\n');
+        var template = CompilerContext.compile(
+          '{{#with field}}{{wycats name}}{{/with}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template({ field: { name: 'foo' } }, { helpers: helpers }),
+          'foo:field\n'
+        );
       });
       it('should handle nesting', function() {
-        var template = CompilerContext.compile('{{#with bat}}{{#with field}}{{wycats name}}{{/with}}{{/with}}', {trackIds: true});
-
-        equals(template({bat: {field: {name: 'foo'}}}, {helpers: helpers}), 'foo:bat.field\n');
+        var template = CompilerContext.compile(
+          '{{#with bat}}{{#with field}}{{wycats name}}{{/with}}{{/with}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template({ bat: { field: { name: 'foo' } } }, { helpers: helpers }),
+          'foo:bat.field\n'
+        );
       });
     });
     describe('#blockHelperMissing', function() {
       it('should track contextPath for arrays', function() {
-        var template = CompilerContext.compile('{{#field}}{{wycats name}}{{/field}}', {trackIds: true});
-
-        equals(template({field: [{name: 'foo'}]}, {helpers: helpers}), 'foo:field.0\n');
+        var template = CompilerContext.compile(
+          '{{#field}}{{wycats name}}{{/field}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template({ field: [{ name: 'foo' }] }, { helpers: helpers }),
+          'foo:field.0\n'
+        );
       });
       it('should track contextPath for keys', function() {
-        var template = CompilerContext.compile('{{#field}}{{wycats name}}{{/field}}', {trackIds: true});
-
-        equals(template({field: {name: 'foo'}}, {helpers: helpers}), 'foo:field\n');
+        var template = CompilerContext.compile(
+          '{{#field}}{{wycats name}}{{/field}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template({ field: { name: 'foo' } }, { helpers: helpers }),
+          'foo:field\n'
+        );
       });
       it('should handle nesting', function() {
-        var template = CompilerContext.compile('{{#bat}}{{#field}}{{wycats name}}{{/field}}{{/bat}}', {trackIds: true});
-
-        equals(template({bat: {field: {name: 'foo'}}}, {helpers: helpers}), 'foo:bat.field\n');
+        var template = CompilerContext.compile(
+          '{{#bat}}{{#field}}{{wycats name}}{{/field}}{{/bat}}',
+          { trackIds: true }
+        );
+
+        equals(
+          template({ bat: { field: { name: 'foo' } } }, { helpers: helpers }),
+          'foo:bat.field\n'
+        );
       });
     });
   });
@@ -202,36 +357,71 @@ describe('track ids', function() {
     };
 
     it('should pass track id for basic partial', function() {
-      var template = CompilerContext.compile('Dudes: {{#dudes}}{{> dude}}{{/dudes}}', {trackIds: true}),
-          hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+      var template = CompilerContext.compile(
+          'Dudes: {{#dudes}}{{> dude}}{{/dudes}}',
+          { trackIds: true }
+        ),
+        hash = {
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        };
 
       var partials = {
-        dude: CompilerContext.compile('{{wycats name}}', {trackIds: true})
+        dude: CompilerContext.compile('{{wycats name}}', { trackIds: true })
       };
 
-      equals(template(hash, {helpers: helpers, partials: partials}), 'Dudes: Yehuda:dudes.0\nAlan:dudes.1\n');
+      equals(
+        template(hash, { helpers: helpers, partials: partials }),
+        'Dudes: Yehuda:dudes.0\nAlan:dudes.1\n'
+      );
     });
 
     it('should pass track id for context partial', function() {
-      var template = CompilerContext.compile('Dudes: {{> dude dudes}}', {trackIds: true}),
-          hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+      var template = CompilerContext.compile('Dudes: {{> dude dudes}}', {
+          trackIds: true
+        }),
+        hash = {
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        };
 
       var partials = {
-        dude: CompilerContext.compile('{{#each this}}{{wycats name}}{{/each}}', {trackIds: true})
+        dude: CompilerContext.compile(
+          '{{#each this}}{{wycats name}}{{/each}}',
+          { trackIds: true }
+        )
       };
 
-      equals(template(hash, {helpers: helpers, partials: partials}), 'Dudes: Yehuda:dudes..0\nAlan:dudes..1\n');
+      equals(
+        template(hash, { helpers: helpers, partials: partials }),
+        'Dudes: Yehuda:dudes..0\nAlan:dudes..1\n'
+      );
     });
 
     it('should invalidate context for partials with parameters', function() {
-      var template = CompilerContext.compile('Dudes: {{#dudes}}{{> dude . bar="foo"}}{{/dudes}}', {trackIds: true}),
-          hash = {dudes: [{name: 'Yehuda', url: 'http://yehuda'}, {name: 'Alan', url: 'http://alan'}]};
+      var template = CompilerContext.compile(
+          'Dudes: {{#dudes}}{{> dude . bar="foo"}}{{/dudes}}',
+          { trackIds: true }
+        ),
+        hash = {
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        };
 
       var partials = {
-        dude: CompilerContext.compile('{{wycats name}}', {trackIds: true})
+        dude: CompilerContext.compile('{{wycats name}}', { trackIds: true })
       };
 
-      equals(template(hash, {helpers: helpers, partials: partials}), 'Dudes: Yehuda:true\nAlan:true\n');
+      equals(
+        template(hash, { helpers: helpers, partials: partials }),
+        'Dudes: Yehuda:true\nAlan:true\n'
+      );
     });
   });
 });
diff --git a/spec/utils.js b/spec/utils.js
index 7248ac447..667aa0ed3 100644
--- a/spec/utils.js
+++ b/spec/utils.js
@@ -5,19 +5,30 @@ describe('utils', function() {
       if (!(safe instanceof Handlebars.SafeString)) {
         throw new Error('Must be instance of SafeString');
       }
-      equals(safe.toString(), 'testing 1, 2, 3', 'SafeString is equivalent to its underlying string');
+      equals(
+        safe.toString(),
+        'testing 1, 2, 3',
+        'SafeString is equivalent to its underlying string'
+      );
     });
 
     it('it should not escape SafeString properties', function() {
       var name = new Handlebars.SafeString('<em>Sean O&#x27;Malley</em>');
 
-      shouldCompileTo('{{name}}', [{name: name}], '<em>Sean O&#x27;Malley</em>');
+      shouldCompileTo(
+        '{{name}}',
+        [{ name: name }],
+        '<em>Sean O&#x27;Malley</em>'
+      );
     });
   });
 
   describe('#escapeExpression', function() {
     it('shouhld escape html', function() {
-      equals(Handlebars.Utils.escapeExpression('foo<&"\'>'), 'foo&lt;&amp;&quot;&#x27;&gt;');
+      equals(
+        Handlebars.Utils.escapeExpression('foo<&"\'>'),
+        'foo&lt;&amp;&quot;&#x27;&gt;'
+      );
       equals(Handlebars.Utils.escapeExpression('foo='), 'foo&#x3D;');
     });
     it('should not escape SafeString', function() {
@@ -58,7 +69,7 @@ describe('utils', function() {
       equals(Handlebars.Utils.isEmpty(0), false);
       equals(Handlebars.Utils.isEmpty([1]), false);
       equals(Handlebars.Utils.isEmpty('foo'), false);
-      equals(Handlebars.Utils.isEmpty({bar: 1}), false);
+      equals(Handlebars.Utils.isEmpty({ bar: 1 }), false);
     });
   });
 
@@ -69,7 +80,7 @@ describe('utils', function() {
       }
       A.prototype.b = 4;
 
-      var b = {b: 2};
+      var b = { b: 2 };
 
       Handlebars.Utils.extend(b, new A());
 
diff --git a/spec/visitor.js b/spec/visitor.js
index d3fb795e2..2bec356fe 100644
--- a/spec/visitor.js
+++ b/spec/visitor.js
@@ -7,7 +7,11 @@ describe('Visitor', function() {
     // Simply run the thing and make sure it does not fail and that all of the
     // stub methods are executed
     var visitor = new Handlebars.Visitor();
-    visitor.accept(Handlebars.parse('{{foo}}{{#foo (bar 1 "1" true undefined null) foo=@data}}{{!comment}}{{> bar }} {{/foo}}'));
+    visitor.accept(
+      Handlebars.parse(
+        '{{foo}}{{#foo (bar 1 "1" true undefined null) foo=@data}}{{!comment}}{{> bar }} {{/foo}}'
+      )
+    );
     visitor.accept(Handlebars.parse('{{#> bar }} {{/bar}}'));
     visitor.accept(Handlebars.parse('{{#* bar }} {{/bar}}'));
     visitor.accept(Handlebars.parse('{{* bar }}'));
@@ -40,7 +44,11 @@ describe('Visitor', function() {
       equal(comment.value, 'comment');
     };
 
-    visitor.accept(Handlebars.parse('{{#foo.bar (foo.bar 1 "2" true) foo=@foo.bar}}{{!comment}}{{> bar }} {{/foo.bar}}'));
+    visitor.accept(
+      Handlebars.parse(
+        '{{#foo.bar (foo.bar 1 "2" true) foo=@foo.bar}}{{!comment}}{{> bar }} {{/foo.bar}}'
+      )
+    );
   });
 
   describe('mutating', function() {
@@ -50,12 +58,15 @@ describe('Visitor', function() {
 
         visitor.mutating = true;
         visitor.StringLiteral = function(string) {
-          return {type: 'NumberLiteral', value: 42, loc: string.loc};
+          return { type: 'NumberLiteral', value: 42, loc: string.loc };
         };
 
         var ast = Handlebars.parse('{{foo foo="foo"}}');
         visitor.accept(ast);
-        equals(Handlebars.print(ast), '{{ PATH:foo [] HASH{foo=NUMBER{42}} }}\n');
+        equals(
+          Handlebars.print(ast),
+          '{{ PATH:foo [] HASH{foo=NUMBER{42}} }}\n'
+        );
       });
       it('should treat undefined resonse as identity', function() {
         var visitor = new Handlebars.Visitor();
@@ -63,7 +74,10 @@ describe('Visitor', function() {
 
         var ast = Handlebars.parse('{{foo foo=42}}');
         visitor.accept(ast);
-        equals(Handlebars.print(ast), '{{ PATH:foo [] HASH{foo=NUMBER{42}} }}\n');
+        equals(
+          Handlebars.print(ast),
+          '{{ PATH:foo [] HASH{foo=NUMBER{42}} }}\n'
+        );
       });
       it('should remove false responses', function() {
         var visitor = new Handlebars.Visitor();
@@ -78,30 +92,38 @@ describe('Visitor', function() {
         equals(Handlebars.print(ast), '{{ PATH:foo [] }}\n');
       });
       it('should throw when removing required values', function() {
-        shouldThrow(function() {
-          var visitor = new Handlebars.Visitor();
-
-          visitor.mutating = true;
-          visitor.PathExpression = function() {
-            return false;
-          };
-
-          var ast = Handlebars.parse('{{foo 42}}');
-          visitor.accept(ast);
-        }, Handlebars.Exception, 'MustacheStatement requires path');
+        shouldThrow(
+          function() {
+            var visitor = new Handlebars.Visitor();
+
+            visitor.mutating = true;
+            visitor.PathExpression = function() {
+              return false;
+            };
+
+            var ast = Handlebars.parse('{{foo 42}}');
+            visitor.accept(ast);
+          },
+          Handlebars.Exception,
+          'MustacheStatement requires path'
+        );
       });
       it('should throw when returning non-node responses', function() {
-        shouldThrow(function() {
-          var visitor = new Handlebars.Visitor();
-
-          visitor.mutating = true;
-          visitor.PathExpression = function() {
-            return {};
-          };
-
-          var ast = Handlebars.parse('{{foo 42}}');
-          visitor.accept(ast);
-        }, Handlebars.Exception, 'Unexpected node type "undefined" found when accepting path on MustacheStatement');
+        shouldThrow(
+          function() {
+            var visitor = new Handlebars.Visitor();
+
+            visitor.mutating = true;
+            visitor.PathExpression = function() {
+              return {};
+            };
+
+            var ast = Handlebars.parse('{{foo 42}}');
+            visitor.accept(ast);
+          },
+          Handlebars.Exception,
+          'Unexpected node type "undefined" found when accepting path on MustacheStatement'
+        );
       });
     });
     describe('arrays', function() {
@@ -110,7 +132,7 @@ describe('Visitor', function() {
 
         visitor.mutating = true;
         visitor.StringLiteral = function(string) {
-          return {type: 'NumberLiteral', value: 42, loc: string.locInfo};
+          return { type: 'NumberLiteral', value: 42, loc: string.locInfo };
         };
 
         var ast = Handlebars.parse('{{foo "foo"}}');
diff --git a/spec/whitespace-control.js b/spec/whitespace-control.js
index a5c9bf14d..b1a6db045 100644
--- a/spec/whitespace-control.js
+++ b/spec/whitespace-control.js
@@ -1,6 +1,6 @@
 describe('whitespace control', function() {
   it('should strip whitespace around mustache calls', function() {
-    var hash = {foo: 'bar<'};
+    var hash = { foo: 'bar<' };
 
     shouldCompileTo(' {{~foo~}} ', hash, 'bar&lt;');
     shouldCompileTo(' {{~foo}} ', hash, 'bar&lt; ');
@@ -14,15 +14,23 @@ describe('whitespace control', function() {
 
   describe('blocks', function() {
     it('should strip whitespace around simple block calls', function() {
-      var hash = {foo: 'bar<'};
+      var hash = { foo: 'bar<' };
 
       shouldCompileTo(' {{~#if foo~}} bar {{~/if~}} ', hash, 'bar');
       shouldCompileTo(' {{#if foo~}} bar {{/if~}} ', hash, ' bar ');
       shouldCompileTo(' {{~#if foo}} bar {{~/if}} ', hash, ' bar ');
       shouldCompileTo(' {{#if foo}} bar {{/if}} ', hash, '  bar  ');
 
-      shouldCompileTo(' \n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\n ', hash, 'bar');
-      shouldCompileTo(' a\n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\na ', hash, ' abara ');
+      shouldCompileTo(
+        ' \n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\n ',
+        hash,
+        'bar'
+      );
+      shouldCompileTo(
+        ' a\n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\na ',
+        hash,
+        ' abara '
+      );
     });
     it('should strip whitespace around inverse block calls', function() {
       var hash = {};
@@ -32,10 +40,14 @@ describe('whitespace control', function() {
       shouldCompileTo(' {{~^if foo}} bar {{~/if}} ', hash, ' bar ');
       shouldCompileTo(' {{^if foo}} bar {{/if}} ', hash, '  bar  ');
 
-      shouldCompileTo(' \n\n{{~^if foo~}} \n\nbar \n\n{{~/if~}}\n\n ', hash, 'bar');
+      shouldCompileTo(
+        ' \n\n{{~^if foo~}} \n\nbar \n\n{{~/if~}}\n\n ',
+        hash,
+        'bar'
+      );
     });
     it('should strip whitespace around complex block calls', function() {
-      var hash = {foo: 'bar<'};
+      var hash = { foo: 'bar<' };
 
       shouldCompileTo('{{#if foo~}} bar {{~^~}} baz {{~/if}}', hash, 'bar');
       shouldCompileTo('{{#if foo~}} bar {{^~}} baz {{/if}}', hash, 'bar ');
@@ -44,8 +56,16 @@ describe('whitespace control', function() {
 
       shouldCompileTo('{{#if foo~}} bar {{~else~}} baz {{~/if}}', hash, 'bar');
 
-      shouldCompileTo('\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n', hash, 'bar');
-      shouldCompileTo('\n\n{{~#if foo~}} \n\n{{{foo}}} \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n', hash, 'bar<');
+      shouldCompileTo(
+        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
+        hash,
+        'bar'
+      );
+      shouldCompileTo(
+        '\n\n{{~#if foo~}} \n\n{{{foo}}} \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
+        hash,
+        'bar<'
+      );
 
       hash = {};
 
@@ -56,21 +76,50 @@ describe('whitespace control', function() {
 
       shouldCompileTo('{{#if foo~}} bar {{~else~}} baz {{~/if}}', hash, 'baz');
 
-      shouldCompileTo('\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n', hash, 'baz');
+      shouldCompileTo(
+        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
+        hash,
+        'baz'
+      );
     });
   });
 
   it('should strip whitespace around partials', function() {
-    shouldCompileToWithPartials('foo {{~> dude~}} ', [{}, {}, {dude: 'bar'}], true, 'foobar');
-    shouldCompileToWithPartials('foo {{> dude~}} ', [{}, {}, {dude: 'bar'}], true, 'foo bar');
-    shouldCompileToWithPartials('foo {{> dude}} ', [{}, {}, {dude: 'bar'}], true, 'foo bar ');
-
-    shouldCompileToWithPartials('foo\n {{~> dude}} ', [{}, {}, {dude: 'bar'}], true, 'foobar');
-    shouldCompileToWithPartials('foo\n {{> dude}} ', [{}, {}, {dude: 'bar'}], true, 'foo\n bar');
+    shouldCompileToWithPartials(
+      'foo {{~> dude~}} ',
+      [{}, {}, { dude: 'bar' }],
+      true,
+      'foobar'
+    );
+    shouldCompileToWithPartials(
+      'foo {{> dude~}} ',
+      [{}, {}, { dude: 'bar' }],
+      true,
+      'foo bar'
+    );
+    shouldCompileToWithPartials(
+      'foo {{> dude}} ',
+      [{}, {}, { dude: 'bar' }],
+      true,
+      'foo bar '
+    );
+
+    shouldCompileToWithPartials(
+      'foo\n {{~> dude}} ',
+      [{}, {}, { dude: 'bar' }],
+      true,
+      'foobar'
+    );
+    shouldCompileToWithPartials(
+      'foo\n {{> dude}} ',
+      [{}, {}, { dude: 'bar' }],
+      true,
+      'foo\n bar'
+    );
   });
 
   it('should only strip whitespace once', function() {
-    var hash = {foo: 'bar'};
+    var hash = { foo: 'bar' };
 
     shouldCompileTo(' {{~foo~}} {{foo}} {{foo}} ', hash, 'barbar bar ');
   });
diff --git a/tasks/metrics.js b/tasks/metrics.js
index a1fa5c95a..f903ceb7b 100644
--- a/tasks/metrics.js
+++ b/tasks/metrics.js
@@ -1,14 +1,16 @@
 var _ = require('underscore'),
-    async = require('neo-async'),
-    metrics = require('../bench');
+  async = require('neo-async'),
+  metrics = require('../bench');
 
 module.exports = function(grunt) {
   grunt.registerTask('metrics', function() {
     var done = this.async(),
-        execName = grunt.option('name'),
-        events = {};
+      execName = grunt.option('name'),
+      events = {};
 
-    async.each(_.keys(metrics), function(name, complete) {
+    async.each(
+      _.keys(metrics),
+      function(name, complete) {
         if (/^_/.test(name) || (execName && name !== execName)) {
           return complete();
         }
@@ -18,6 +20,7 @@ module.exports = function(grunt) {
           complete();
         });
       },
-      done);
+      done
+    );
   });
 };
diff --git a/tasks/parser.js b/tasks/parser.js
index 7ff725850..0adba111d 100644
--- a/tasks/parser.js
+++ b/tasks/parser.js
@@ -7,10 +7,14 @@ module.exports = function(grunt) {
     var cmd = './node_modules/.bin/jison';
 
     if (process.platform === 'win32') {
-        cmd = 'node_modules\\.bin\\jison.cmd';
+      cmd = 'node_modules\\.bin\\jison.cmd';
     }
 
-    var child = childProcess.spawn(cmd, ['-m', 'js', 'src/handlebars.yy', 'src/handlebars.l'], {stdio: 'inherit'});
+    var child = childProcess.spawn(
+      cmd,
+      ['-m', 'js', 'src/handlebars.yy', 'src/handlebars.l'],
+      { stdio: 'inherit' }
+    );
     child.on('exit', function(code) {
       if (code != 0) {
         grunt.fatal('Jison failure: ' + code);
@@ -18,7 +22,13 @@ module.exports = function(grunt) {
         return;
       }
 
-      var src = ['src/parser-prefix.js', 'handlebars.js', 'src/parser-suffix.js'].map(grunt.file.read).join('');
+      var src = [
+        'src/parser-prefix.js',
+        'handlebars.js',
+        'src/parser-suffix.js'
+      ]
+        .map(grunt.file.read)
+        .join('');
       grunt.file.delete('handlebars.js');
 
       grunt.file.write('lib/handlebars/compiler/parser.js', src);
diff --git a/tasks/publish.js b/tasks/publish.js
index c3729596b..b22c9b8ea 100644
--- a/tasks/publish.js
+++ b/tasks/publish.js
@@ -1,8 +1,8 @@
 var _ = require('underscore'),
-    async = require('neo-async'),
-    AWS = require('aws-sdk'),
-    git = require('./util/git'),
-    semver = require('semver');
+  async = require('neo-async'),
+  AWS = require('aws-sdk'),
+  git = require('./util/git'),
+  semver = require('semver');
 
 module.exports = function(grunt) {
   grunt.registerTask('publish:latest', function() {
@@ -53,21 +53,27 @@ module.exports = function(grunt) {
 
   function initSDK() {
     var bucket = process.env.S3_BUCKET_NAME,
-        key = process.env.S3_ACCESS_KEY_ID,
-        secret = process.env.S3_SECRET_ACCESS_KEY;
+      key = process.env.S3_ACCESS_KEY_ID,
+      secret = process.env.S3_SECRET_ACCESS_KEY;
 
     if (!bucket || !key || !secret) {
       throw new Error('Missing S3 config values');
     }
 
-    AWS.config.update({accessKeyId: key, secretAccessKey: secret});
+    AWS.config.update({ accessKeyId: key, secretAccessKey: secret });
   }
   function publish(files, callback) {
     var s3 = new AWS.S3(),
-        bucket = process.env.S3_BUCKET_NAME;
+      bucket = process.env.S3_BUCKET_NAME;
 
-    async.each(_.keys(files), function(file, callback) {
-        var params = {Bucket: bucket, Key: file, Body: grunt.file.read(files[file])};
+    async.each(
+      _.keys(files),
+      function(file, callback) {
+        var params = {
+          Bucket: bucket,
+          Key: file,
+          Body: grunt.file.read(files[file])
+        };
         s3.putObject(params, function(err) {
           if (err) {
             throw err;
@@ -77,15 +83,24 @@ module.exports = function(grunt) {
           }
         });
       },
-      callback);
+      callback
+    );
   }
   function fileMap(suffixes) {
     var map = {};
-    _.each(['handlebars.js', 'handlebars.min.js', 'handlebars.runtime.js', 'handlebars.runtime.min.js'], function(file) {
-      _.each(suffixes, function(suffix) {
-        map[file.replace(/\.js$/, suffix + '.js')] = 'dist/' + file;
-      });
-    });
+    _.each(
+      [
+        'handlebars.js',
+        'handlebars.min.js',
+        'handlebars.runtime.js',
+        'handlebars.runtime.min.js'
+      ],
+      function(file) {
+        _.each(suffixes, function(suffix) {
+          map[file.replace(/\.js$/, suffix + '.js')] = 'dist/' + file;
+        });
+      }
+    );
     return map;
   }
 };
diff --git a/tasks/test.js b/tasks/test.js
index a17fc2a22..94fc8c25a 100644
--- a/tasks/test.js
+++ b/tasks/test.js
@@ -1,13 +1,13 @@
 var childProcess = require('child_process'),
-    fs = require('fs'),
-    os = require('os');
+  fs = require('fs'),
+  os = require('os');
 
 module.exports = function(grunt) {
   grunt.registerTask('test:bin', function() {
     var done = this.async();
 
     var cmd = './bin/handlebars';
-    var args = [ '-a', 'spec/artifacts/empty.handlebars' ];
+    var args = ['-a', 'spec/artifacts/empty.handlebars'];
 
     // On Windows, the executable handlebars.js file cannot be run directly
     if (os.platform() === 'win32') {
@@ -19,10 +19,19 @@ module.exports = function(grunt) {
         throw err;
       }
 
-      var expected = fs.readFileSync('./spec/expected/empty.amd.js').toString().replace(/\r\n/g, '\n');
+      var expected = fs
+        .readFileSync('./spec/expected/empty.amd.js')
+        .toString()
+        .replace(/\r\n/g, '\n');
 
       if (stdout.toString() !== expected) {
-        throw new Error('Expected binary output differed:\n\n"' + stdout + '"\n\n"' + expected + '"');
+        throw new Error(
+          'Expected binary output differed:\n\n"' +
+            stdout +
+            '"\n\n"' +
+            expected +
+            '"'
+        );
       }
 
       done();
@@ -31,7 +40,9 @@ module.exports = function(grunt) {
   grunt.registerTask('test:mocha', function() {
     var done = this.async();
 
-    var runner = childProcess.fork('./spec/env/runner', [], {stdio: 'inherit'});
+    var runner = childProcess.fork('./spec/env/runner', [], {
+      stdio: 'inherit'
+    });
     runner.on('close', function(code) {
       if (code !== 0) {
         grunt.fatal(code + ' tests failed');
@@ -42,7 +53,11 @@ module.exports = function(grunt) {
   grunt.registerTask('test:cov', function() {
     var done = this.async();
 
-    var runner = childProcess.fork('node_modules/istanbul/lib/cli.js', ['cover', '--source-map', '--', './spec/env/runner.js'], {stdio: 'inherit'});
+    var runner = childProcess.fork(
+      'node_modules/istanbul/lib/cli.js',
+      ['cover', '--source-map', '--', './spec/env/runner.js'],
+      { stdio: 'inherit' }
+    );
     runner.on('close', function(code) {
       if (code != 0) {
         grunt.fatal(code + ' tests failed');
@@ -53,7 +68,9 @@ module.exports = function(grunt) {
   grunt.registerTask('test:min', function() {
     var done = this.async();
 
-    var runner = childProcess.fork('./spec/env/runner', ['--min'], {stdio: 'inherit'});
+    var runner = childProcess.fork('./spec/env/runner', ['--min'], {
+      stdio: 'inherit'
+    });
     runner.on('close', function(code) {
       if (code !== 0) {
         grunt.fatal(code + ' tests failed');
@@ -65,7 +82,20 @@ module.exports = function(grunt) {
   grunt.registerTask('test:check-cov', function() {
     var done = this.async();
 
-    var runner = childProcess.fork('node_modules/istanbul/lib/cli.js', ['check-coverage', '--statements', '100', '--functions', '100', '--branches', '100', '--lines 100'], {stdio: 'inherit'});
+    var runner = childProcess.fork(
+      'node_modules/istanbul/lib/cli.js',
+      [
+        'check-coverage',
+        '--statements',
+        '100',
+        '--functions',
+        '100',
+        '--branches',
+        '100',
+        '--lines 100'
+      ],
+      { stdio: 'inherit' }
+    );
     runner.on('close', function(code) {
       if (code != 0) {
         grunt.fatal('Coverage check failed: ' + code);
diff --git a/tasks/util/git.js b/tasks/util/git.js
index 03802630d..5418bf03d 100644
--- a/tasks/util/git.js
+++ b/tasks/util/git.js
@@ -17,7 +17,10 @@ module.exports = {
     });
   },
   clean: function(callback) {
-    childProcess.exec('git diff-index --name-only HEAD --', {}, function(err, stdout) {
+    childProcess.exec('git diff-index --name-only HEAD --', {}, function(
+      err,
+      stdout
+    ) {
       callback(undefined, !err && !stdout);
     });
   },
@@ -47,10 +50,13 @@ module.exports = {
     });
   },
   master: function(callback) {
-    childProcess.exec('git rev-parse --short origin/master', {}, function(err, stdout) {
+    childProcess.exec('git rev-parse --short origin/master', {}, function(
+      err,
+      stdout
+    ) {
       // This will error if master was not checked out but in this case we know we are not master
       // so we can ignore.
-      if (err && !(/Needed a single revision/.test(err.message))) {
+      if (err && !/Needed a single revision/.test(err.message)) {
         throw new Error('git.master: ' + err.message);
       }
 
@@ -77,7 +83,9 @@ module.exports = {
     });
   },
   tag: function(name, callback) {
-    childProcess.exec('git tag -a --message=' + name + ' ' + name, {}, function(err) {
+    childProcess.exec('git tag -a --message=' + name + ' ' + name, {}, function(
+      err
+    ) {
       if (err) {
         throw new Error('git.tag: ' + err.message);
       }
@@ -98,7 +106,7 @@ module.exports = {
       });
 
       var versionTags = tags.filter(function(info) {
-        return (/^v/.test(info[0]));
+        return /^v/.test(info[0]);
       });
 
       callback(undefined, versionTags[0] || tags[0]);
diff --git a/tasks/version.js b/tasks/version.js
index 05f703419..05c05fa01 100644
--- a/tasks/version.js
+++ b/tasks/version.js
@@ -1,38 +1,64 @@
 var async = require('neo-async'),
-    git = require('./util/git'),
-    semver = require('semver');
+  git = require('./util/git'),
+  semver = require('semver');
 
 module.exports = function(grunt) {
-  grunt.registerTask('version', 'Updates the current release version', function() {
-    var done = this.async(),
+  grunt.registerTask(
+    'version',
+    'Updates the current release version',
+    function() {
+      var done = this.async(),
         pkg = grunt.config('pkg'),
         version = grunt.option('ver');
 
-    if (!semver.valid(version)) {
-      throw new Error('Must provide a version number (Ex: --ver=1.0.0):\n\t' + version + '\n\n');
-    }
+      if (!semver.valid(version)) {
+        throw new Error(
+          'Must provide a version number (Ex: --ver=1.0.0):\n\t' +
+            version +
+            '\n\n'
+        );
+      }
 
-    pkg.version = version;
-    grunt.config('pkg', pkg);
+      pkg.version = version;
+      grunt.config('pkg', pkg);
 
-    grunt.log.writeln('Updating to version ' + version);
+      grunt.log.writeln('Updating to version ' + version);
 
-    async.each([
-        ['lib/handlebars/base.js', (/const VERSION = ['"](.*)['"];/), 'const VERSION = \'' + version + '\';'],
-        ['components/bower.json', (/"version":.*/), '"version": "' + version + '",'],
-        ['components/package.json', /"version":.*/, '"version": "' + version + '",'],
-        ['components/handlebars.js.nuspec', (/<version>.*<\/version>/), '<version>' + version + '</version>']
-      ],
-      function(args, callback) {
-        replace.apply(undefined, args);
-        grunt.log.writeln('    - ' + args[0]);
-        git.add(args[0], callback);
-      },
-      function() {
-        grunt.task.run(['default']);
-        done();
-      });
-  });
+      async.each(
+        [
+          [
+            'lib/handlebars/base.js',
+            /const VERSION = ['"](.*)['"];/,
+            "const VERSION = '" + version + "';"
+          ],
+          [
+            'components/bower.json',
+            /"version":.*/,
+            '"version": "' + version + '",'
+          ],
+          [
+            'components/package.json',
+            /"version":.*/,
+            '"version": "' + version + '",'
+          ],
+          [
+            'components/handlebars.js.nuspec',
+            /<version>.*<\/version>/,
+            '<version>' + version + '</version>'
+          ]
+        ],
+        function(args, callback) {
+          replace.apply(undefined, args);
+          grunt.log.writeln('    - ' + args[0]);
+          git.add(args[0], callback);
+        },
+        function() {
+          grunt.task.run(['default']);
+          done();
+        }
+      );
+    }
+  );
 
   function replace(path, regex, value) {
     var content = grunt.file.read(path);

From 8901c28e9a13204f0d392834c9b93d20c69ae722 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 3 Dec 2019 22:59:04 +0100
Subject: [PATCH 127/191] chore: fix task name in build

---
 Gruntfile.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 9cf025960..6e32e162d 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -264,10 +264,13 @@ module.exports = function(grunt) {
   this.registerTask('amd', ['babel:amd', 'requirejs']);
 
   grunt.registerTask('bench', ['metrics']);
-  grunt.registerTask(
-    'sauce',
-    process.env.SAUCE_USERNAME ? ['tests', 'connect', 'saucelabs-mocha'] : []
-  );
+
+  if (process.env.SAUCE_USERNAME) {
+    grunt.registerTask('sauce', ['concat:tests', 'connect', 'saucelabs-mocha']);
+  } else {
+    grunt.registerTask('sauce', []);
+  }
+
   // Requires secret properties (saucelabs-credentials etc.) from .travis.yaml
   grunt.registerTask('extensive-tests-and-publish-to-aws', [
     'default',

From c40d9f33adc1a1a024d59e8f8fc2266aaded5d8f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 5 Dec 2019 08:01:33 +0100
Subject: [PATCH 128/191] chore: active linting and formatting on commit

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index a925e0a65..9ce188bb0 100644
--- a/package.json
+++ b/package.json
@@ -113,7 +113,7 @@
   ],
   "husky": {
     "hooks": {
-      "pre-commit": "true || lint-staged"
+      "pre-commit": "lint-staged"
     }
   },
   "lint-staged": {

From 04b19848cccabb7c31fd24265aa2ec4c6c705ebb Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Sun, 8 Dec 2019 16:17:15 +0100
Subject: [PATCH 129/191] chore: try to fix saucelabs credentials (#1627)

---
 .travis.yml | 68 +++++++++++++++++++++++------------------------------
 1 file changed, 30 insertions(+), 38 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index a5ff4c692..e7d347e27 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,47 +1,39 @@
 language: node_js
-
 jobs:
   include:
-    - stage: test
-      name: "check javascript (eslint)"
-      node_js: lts/*
-      script: npm run lint
-
-    - stage: test
-      name: "check formatting (prettier)"
-      node_js: lts/*
-      script: npm run check-format
-
-    - stage: test
-      name: "check typescript definitions (dtslint)"
-      node_js: lts/*
-      script: npm run dtslint
-
-    - stage: test
-      name: "extensive tests and publish to aws"
-      script: npm run extensive-tests-and-publish-to-aws
-      env:
-        - S3_BUCKET_NAME=builds.handlebarsjs.com
-        - secure: ckyEe5dzjdFDjmZ6wIrhGm0CFBEnKq8c1dYptfgVV/Q5/nJFGzu8T0yTjouS/ERxzdT2H327/63VCxhFnLCRHrsh4rlW/rCy4XI3O/0TeMLgFPa4TXkO8359qZ4CB44TBb3NsJyQXNMYdJpPLTCVTMpuiqqkFFOr+6OeggR7ufA=
-        - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
-        - SAUCE_USERNAME=handlebars
-        - secure: yERYCf7AwL11D9uMtacly/THGV8BlzsMmrt+iQVvGA3GaY6QMmfYqf6P6cCH98sH5etd1Y+1e6YrPeMjqI6lyRllT7FptoyOdHulazQe86VQN4sc0EpqMlH088kB7gGjTut9Z+X9ViooT5XEh9WA5jXEI9pXhQJNoIHkWPuwGuY=
-      node_js: "10"
-
-    - stage: test
-      name: "test with latest nodejs-lts"
-      node_js: lts/*
-      script: npm run test
-
-    - stage: test
-      name: "test with active nodejs"
-      node_js: node
-      script: npm run test
-
+  - stage: test
+    name: check javascript (eslint)
+    node_js: lts/*
+    script: npm run lint
+  - stage: test
+    name: check formatting (prettier)
+    node_js: lts/*
+    script: npm run check-format
+  - stage: test
+    name: check typescript definitions (dtslint)
+    node_js: lts/*
+    script: npm run dtslint
+  - stage: test
+    name: extensive tests and publish to aws
+    script: npm run extensive-tests-and-publish-to-aws
+    env:
+    - S3_BUCKET_NAME=builds.handlebarsjs.com
+    - secure: ckyEe5dzjdFDjmZ6wIrhGm0CFBEnKq8c1dYptfgVV/Q5/nJFGzu8T0yTjouS/ERxzdT2H327/63VCxhFnLCRHrsh4rlW/rCy4XI3O/0TeMLgFPa4TXkO8359qZ4CB44TBb3NsJyQXNMYdJpPLTCVTMpuiqqkFFOr+6OeggR7ufA=
+    - secure: Nm4AgSfsgNB21kgKrF9Tl7qVZU8YYREhouQunFracTcZZh2NZ2XH5aHuSiXCj88B13Cr/jGbJKsZ4T3QS3wWYtz6lkyVOx3H3iI+TMtqhD9RM3a7A4O+4vVN8IioB2YjhEu0OKjwgX5gp+0uF+pLEi7Hpj6fupD3AbbL5uYcKg8=
+    - SAUCE_USERNAME=handlebars
+    - secure: 1VkLQhbsEug4ZMQ52tTOus/WLvW3Etqe7GbCzZfzsI8d2ygJPjFfzU8fNm4pVVwoTI21MaM5AQq7SVPu8DWN1YbDjJycMdY1zO3DsB9aZBxTal98fIB7ZIUce9r5z2EP6mETrsbYjZkeckzIBI0A4UVa+F2BO4KbRDXP1Db3u3I=
+    node_js: '10'
+  - stage: test
+    name: test with latest nodejs-lts
+    node_js: lts/*
+    script: npm run test
+  - stage: test
+    name: test with active nodejs
+    node_js: node
+    script: npm run test
 cache: npm
 email:
   on_failure: change
   on_success: never
-
 git:
   depth: 100

From d1fb07b32b8cae4e230ee000fa4267c96dcc44c3 Mon Sep 17 00:00:00 2001
From: Marcos Marado <mindboosternoori@gmail.com>
Date: Fri, 6 Dec 2019 23:57:50 +0000
Subject: [PATCH 130/191] Update (C) year in the LICENSE file

Welcome to 2019!
---
 LICENSE | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/LICENSE b/LICENSE
index b802d14e7..4d9d5806f 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (C) 2011-2017 by Yehuda Katz
+Copyright (C) 2011-2019 by Yehuda Katz
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

From dc5495216d092de6890c9245e99453666376461f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 11 Dec 2019 23:44:43 +0100
Subject: [PATCH 131/191] chore: change eslint-rules for tasks/

- use es2017 rules as NodeJS supports it today
- add "prefer-const"
---
 tasks/.eslintrc    | 16 ----------------
 tasks/.eslintrc.js | 12 ++++++++++++
 tasks/metrics.js   |  4 ++--
 tasks/parser.js    | 12 ++++++------
 tasks/publish.js   | 16 ++++++++--------
 tasks/test.js      | 30 +++++++++++++++---------------
 tasks/util/git.js  |  6 +++---
 tasks/version.js   |  6 +++---
 8 files changed, 49 insertions(+), 53 deletions(-)
 delete mode 100644 tasks/.eslintrc
 create mode 100644 tasks/.eslintrc.js

diff --git a/tasks/.eslintrc b/tasks/.eslintrc
deleted file mode 100644
index 346150294..000000000
--- a/tasks/.eslintrc
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "globals": {
-    "require": true
-  },
-  "rules": {
-    // Disabling for tests, for now.
-    "no-path-concat": 0,
-
-    "no-var": 0,
-    "no-shadow": 0,
-    "handle-callback-err": 0,
-    "no-console": 0,
-    "no-process-env": 0,
-    "dot-notation": [2, {"allowKeywords": true}]
-  }
-}
\ No newline at end of file
diff --git a/tasks/.eslintrc.js b/tasks/.eslintrc.js
new file mode 100644
index 000000000..7c985caa8
--- /dev/null
+++ b/tasks/.eslintrc.js
@@ -0,0 +1,12 @@
+module.exports = {
+  extends: ['../.eslintrc.js'],
+  parserOptions: {
+    sourceType: 'module',
+    ecmaVersion: 2017,
+    ecmaFeatures: {}
+  },
+  rules: {
+    'no-process-env': 'off',
+    'prefer-const': 'warn'
+  }
+};
diff --git a/tasks/metrics.js b/tasks/metrics.js
index f903ceb7b..bcb76318f 100644
--- a/tasks/metrics.js
+++ b/tasks/metrics.js
@@ -1,10 +1,10 @@
-var _ = require('underscore'),
+const _ = require('underscore'),
   async = require('neo-async'),
   metrics = require('../bench');
 
 module.exports = function(grunt) {
   grunt.registerTask('metrics', function() {
-    var done = this.async(),
+    const done = this.async(),
       execName = grunt.option('name'),
       events = {};
 
diff --git a/tasks/parser.js b/tasks/parser.js
index 0adba111d..21e7442ad 100644
--- a/tasks/parser.js
+++ b/tasks/parser.js
@@ -1,16 +1,16 @@
-var childProcess = require('child_process');
+const childProcess = require('child_process');
 
 module.exports = function(grunt) {
   grunt.registerTask('parser', 'Generate jison parser.', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var cmd = './node_modules/.bin/jison';
+    let cmd = './node_modules/.bin/jison';
 
     if (process.platform === 'win32') {
       cmd = 'node_modules\\.bin\\jison.cmd';
     }
 
-    var child = childProcess.spawn(
+    const child = childProcess.spawn(
       cmd,
       ['-m', 'js', 'src/handlebars.yy', 'src/handlebars.l'],
       { stdio: 'inherit' }
@@ -22,14 +22,14 @@ module.exports = function(grunt) {
         return;
       }
 
-      var src = [
+      const src = [
         'src/parser-prefix.js',
         'handlebars.js',
         'src/parser-suffix.js'
       ]
         .map(grunt.file.read)
         .join('');
-      grunt.file.delete('handlebars.js');
+      grunt.file['delete']('handlebars.js');
 
       grunt.file.write('lib/handlebars/compiler/parser.js', src);
       grunt.log.writeln('Parser "lib/handlebars/compiler/parser.js" created.');
diff --git a/tasks/publish.js b/tasks/publish.js
index b22c9b8ea..207e281fe 100644
--- a/tasks/publish.js
+++ b/tasks/publish.js
@@ -1,4 +1,4 @@
-var _ = require('underscore'),
+const _ = require('underscore'),
   async = require('neo-async'),
   AWS = require('aws-sdk'),
   git = require('./util/git'),
@@ -6,7 +6,7 @@ var _ = require('underscore'),
 
 module.exports = function(grunt) {
   grunt.registerTask('publish:latest', function() {
-    var done = this.async();
+    const done = this.async();
 
     git.debug(function(remotes, branches) {
       grunt.log.writeln('remotes: ' + remotes);
@@ -15,7 +15,7 @@ module.exports = function(grunt) {
       git.commitInfo(function(err, info) {
         grunt.log.writeln('tag: ' + info.tagName);
 
-        var files = [];
+        const files = [];
 
         // Publish the master as "latest" and with the commit-id
         if (info.isMaster) {
@@ -40,7 +40,7 @@ module.exports = function(grunt) {
     });
   });
   grunt.registerTask('publish:version', function() {
-    var done = this.async();
+    const done = this.async();
     initSDK();
 
     git.commitInfo(function(err, info) {
@@ -52,7 +52,7 @@ module.exports = function(grunt) {
   });
 
   function initSDK() {
-    var bucket = process.env.S3_BUCKET_NAME,
+    const bucket = process.env.S3_BUCKET_NAME,
       key = process.env.S3_ACCESS_KEY_ID,
       secret = process.env.S3_SECRET_ACCESS_KEY;
 
@@ -63,13 +63,13 @@ module.exports = function(grunt) {
     AWS.config.update({ accessKeyId: key, secretAccessKey: secret });
   }
   function publish(files, callback) {
-    var s3 = new AWS.S3(),
+    const s3 = new AWS.S3(),
       bucket = process.env.S3_BUCKET_NAME;
 
     async.each(
       _.keys(files),
       function(file, callback) {
-        var params = {
+        const params = {
           Bucket: bucket,
           Key: file,
           Body: grunt.file.read(files[file])
@@ -87,7 +87,7 @@ module.exports = function(grunt) {
     );
   }
   function fileMap(suffixes) {
-    var map = {};
+    const map = {};
     _.each(
       [
         'handlebars.js',
diff --git a/tasks/test.js b/tasks/test.js
index 94fc8c25a..c7279cf3b 100644
--- a/tasks/test.js
+++ b/tasks/test.js
@@ -1,13 +1,13 @@
-var childProcess = require('child_process'),
+const childProcess = require('child_process'),
   fs = require('fs'),
   os = require('os');
 
 module.exports = function(grunt) {
   grunt.registerTask('test:bin', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var cmd = './bin/handlebars';
-    var args = ['-a', 'spec/artifacts/empty.handlebars'];
+    let cmd = './bin/handlebars';
+    const args = ['-a', 'spec/artifacts/empty.handlebars'];
 
     // On Windows, the executable handlebars.js file cannot be run directly
     if (os.platform() === 'win32') {
@@ -19,7 +19,7 @@ module.exports = function(grunt) {
         throw err;
       }
 
-      var expected = fs
+      const expected = fs
         .readFileSync('./spec/expected/empty.amd.js')
         .toString()
         .replace(/\r\n/g, '\n');
@@ -38,9 +38,9 @@ module.exports = function(grunt) {
     });
   });
   grunt.registerTask('test:mocha', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var runner = childProcess.fork('./spec/env/runner', [], {
+    const runner = childProcess.fork('./spec/env/runner', [], {
       stdio: 'inherit'
     });
     runner.on('close', function(code) {
@@ -51,24 +51,24 @@ module.exports = function(grunt) {
     });
   });
   grunt.registerTask('test:cov', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var runner = childProcess.fork(
+    const runner = childProcess.spawn(
       'node_modules/istanbul/lib/cli.js',
       ['cover', '--source-map', '--', './spec/env/runner.js'],
       { stdio: 'inherit' }
     );
-    runner.on('close', function(code) {
-      if (code != 0) {
+    runner.on('exit', function(code) {
+      if (code !== 0) {
         grunt.fatal(code + ' tests failed');
       }
       done();
     });
   });
   grunt.registerTask('test:min', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var runner = childProcess.fork('./spec/env/runner', ['--min'], {
+    const runner = childProcess.fork('./spec/env/runner', ['--min'], {
       stdio: 'inherit'
     });
     runner.on('close', function(code) {
@@ -80,9 +80,9 @@ module.exports = function(grunt) {
   });
 
   grunt.registerTask('test:check-cov', function() {
-    var done = this.async();
+    const done = this.async();
 
-    var runner = childProcess.fork(
+    const runner = childProcess.fork(
       'node_modules/istanbul/lib/cli.js',
       [
         'check-coverage',
diff --git a/tasks/util/git.js b/tasks/util/git.js
index 5418bf03d..4dc5cbde0 100644
--- a/tasks/util/git.js
+++ b/tasks/util/git.js
@@ -1,4 +1,4 @@
-var childProcess = require('child_process');
+const childProcess = require('child_process');
 
 module.exports = {
   debug: function(callback) {
@@ -99,13 +99,13 @@ module.exports = {
         throw new Error('git.tagName: ' + err.message);
       }
 
-      var tags = stdout.trim().split(/\n/);
+      let tags = stdout.trim().split(/\n/);
       tags = tags.filter(function(info) {
         info = info.split('-');
         return info.length == 1;
       });
 
-      var versionTags = tags.filter(function(info) {
+      const versionTags = tags.filter(function(info) {
         return /^v/.test(info[0]);
       });
 
diff --git a/tasks/version.js b/tasks/version.js
index 05c05fa01..f9d5c5675 100644
--- a/tasks/version.js
+++ b/tasks/version.js
@@ -1,4 +1,4 @@
-var async = require('neo-async'),
+const async = require('neo-async'),
   git = require('./util/git'),
   semver = require('semver');
 
@@ -7,7 +7,7 @@ module.exports = function(grunt) {
     'version',
     'Updates the current release version',
     function() {
-      var done = this.async(),
+      const done = this.async(),
         pkg = grunt.config('pkg'),
         version = grunt.option('ver');
 
@@ -61,7 +61,7 @@ module.exports = function(grunt) {
   );
 
   function replace(path, regex, value) {
-    var content = grunt.file.read(path);
+    let content = grunt.file.read(path);
     content = content.replace(regex, value);
     grunt.file.write(path, content);
   }

From dde108e2836928ec4c0509fdfb32da052022357f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 12 Dec 2019 01:00:57 +0100
Subject: [PATCH 132/191] test/style: refactor test-task to make it more
 readable

---
 Gruntfile.js        |   2 +
 tasks/.eslintrc.js  |   4 +-
 tasks/parser.js     |   2 +-
 tasks/test-bin.js   |  55 +++++++++++++++++++++++
 tasks/test-mocha.js |  66 +++++++++++++++++++++++++++
 tasks/test.js       | 107 --------------------------------------------
 6 files changed, 127 insertions(+), 109 deletions(-)
 create mode 100644 tasks/test-bin.js
 create mode 100644 tasks/test-mocha.js
 delete mode 100644 tasks/test.js

diff --git a/Gruntfile.js b/Gruntfile.js
index 6e32e162d..84a361581 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -263,6 +263,8 @@ module.exports = function(grunt) {
 
   this.registerTask('amd', ['babel:amd', 'requirejs']);
 
+  this.registerTask('test', ['test:bin', 'test:cov', 'test:check-cov']);
+
   grunt.registerTask('bench', ['metrics']);
 
   if (process.env.SAUCE_USERNAME) {
diff --git a/tasks/.eslintrc.js b/tasks/.eslintrc.js
index 7c985caa8..642a9ab06 100644
--- a/tasks/.eslintrc.js
+++ b/tasks/.eslintrc.js
@@ -7,6 +7,8 @@ module.exports = {
   },
   rules: {
     'no-process-env': 'off',
-    'prefer-const': 'warn'
+    'prefer-const': 'warn',
+    'compat/compat': 'off',
+    'dot-notation': ['error', { allowKeywords: true }]
   }
 };
diff --git a/tasks/parser.js b/tasks/parser.js
index 21e7442ad..a0c19e47e 100644
--- a/tasks/parser.js
+++ b/tasks/parser.js
@@ -29,7 +29,7 @@ module.exports = function(grunt) {
       ]
         .map(grunt.file.read)
         .join('');
-      grunt.file['delete']('handlebars.js');
+      grunt.file.delete('handlebars.js');
 
       grunt.file.write('lib/handlebars/compiler/parser.js', src);
       grunt.log.writeln('Parser "lib/handlebars/compiler/parser.js" created.');
diff --git a/tasks/test-bin.js b/tasks/test-bin.js
new file mode 100644
index 000000000..48c0ded87
--- /dev/null
+++ b/tasks/test-bin.js
@@ -0,0 +1,55 @@
+const childProcess = require('child_process'),
+  fs = require('fs'),
+  os = require('os'),
+  expect = require('chai').expect,
+  util = require('util');
+
+const readFile = util.promisify(fs.readFile);
+const execFile = util.promisify(childProcess.execFile);
+
+module.exports = function(grunt) {
+  grunt.registerTask(
+    'test:bin',
+    wrapAsync(async function() {
+      const { stdout } = await execFileWithWin32Fallback('./bin/handlebars', [
+        '-a',
+        'spec/artifacts/empty.handlebars'
+      ]);
+
+      const expectedOutput = await readFile(
+        './spec/expected/empty.amd.js',
+        'utf-8'
+      );
+
+      const normalizedOutput = normalizeCrlf(stdout);
+      const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
+      expect(normalizedOutput).to.equal(normalizedExpectedOutput);
+    })
+  );
+
+  async function execFileWithWin32Fallback(command, args) {
+    // On Windows, the executable handlebars.js file cannot be run directly
+    if (os.platform() === 'win32') {
+      args.unshift(command);
+      command = process.argv[0];
+    }
+    return execFile(command, args, { encoding: 'utf-8' });
+  }
+
+  function normalizeCrlf(string) {
+    if (string != null) {
+      return string.replace(/\r\n/g, '\n');
+    }
+    return string;
+  }
+
+  function wrapAsync(asyncFunction) {
+    return function() {
+      asyncFunction()
+        .catch(error => {
+          grunt.fatal(error);
+        })
+        .finally(this.async());
+    };
+  }
+};
diff --git a/tasks/test-mocha.js b/tasks/test-mocha.js
new file mode 100644
index 000000000..9bed2c63e
--- /dev/null
+++ b/tasks/test-mocha.js
@@ -0,0 +1,66 @@
+const childProcess = require('child_process');
+
+module.exports = function(grunt) {
+  grunt.registerTask(
+    'test:mocha',
+    promiseBasedTask(async () => forkAndWait('./spec/env/runner'))
+  );
+
+  grunt.registerTask(
+    'test:cov',
+    promiseBasedTask(async () =>
+      forkAndWait(
+        'node_modules/istanbul/lib/cli.js',
+        'cover',
+        '--source-map',
+        '--',
+        './spec/env/runner.js'
+      )
+    )
+  );
+
+  grunt.registerTask(
+    'test:min',
+    promiseBasedTask(async () => forkAndWait('./spec/env/runner', '--min'))
+  );
+
+  grunt.registerTask(
+    'test:check-cov',
+    promiseBasedTask(() =>
+      forkAndWait(
+        'node_modules/istanbul/lib/cli.js',
+        'check-coverage',
+        '--statements',
+        '100',
+        '--functions',
+        '100',
+        '--branches',
+        '100',
+        '--lines 100'
+      )
+    )
+  );
+
+  function promiseBasedTask(asyncFunction) {
+    return function() {
+      asyncFunction()
+        .catch(error => {
+          grunt.fatal(error);
+        })
+        .finally(this.async());
+    };
+  }
+
+  async function forkAndWait(command, ...args) {
+    return new Promise((resolve, reject) => {
+      const child = childProcess.fork(command, args, { stdio: 'inherit' });
+      child.on('close', code => {
+        if (code !== 0) {
+          reject(new Error(`Child process failed with exit-code ${code}`));
+        }
+      });
+    });
+  }
+
+  grunt.registerTask('test', ['test:bin', 'test:cov', 'test:check-cov']);
+};
diff --git a/tasks/test.js b/tasks/test.js
deleted file mode 100644
index c7279cf3b..000000000
--- a/tasks/test.js
+++ /dev/null
@@ -1,107 +0,0 @@
-const childProcess = require('child_process'),
-  fs = require('fs'),
-  os = require('os');
-
-module.exports = function(grunt) {
-  grunt.registerTask('test:bin', function() {
-    const done = this.async();
-
-    let cmd = './bin/handlebars';
-    const args = ['-a', 'spec/artifacts/empty.handlebars'];
-
-    // On Windows, the executable handlebars.js file cannot be run directly
-    if (os.platform() === 'win32') {
-      args.unshift(cmd);
-      cmd = process.argv[0];
-    }
-    childProcess.execFile(cmd, args, function(err, stdout) {
-      if (err) {
-        throw err;
-      }
-
-      const expected = fs
-        .readFileSync('./spec/expected/empty.amd.js')
-        .toString()
-        .replace(/\r\n/g, '\n');
-
-      if (stdout.toString() !== expected) {
-        throw new Error(
-          'Expected binary output differed:\n\n"' +
-            stdout +
-            '"\n\n"' +
-            expected +
-            '"'
-        );
-      }
-
-      done();
-    });
-  });
-  grunt.registerTask('test:mocha', function() {
-    const done = this.async();
-
-    const runner = childProcess.fork('./spec/env/runner', [], {
-      stdio: 'inherit'
-    });
-    runner.on('close', function(code) {
-      if (code !== 0) {
-        grunt.fatal(code + ' tests failed');
-      }
-      done();
-    });
-  });
-  grunt.registerTask('test:cov', function() {
-    const done = this.async();
-
-    const runner = childProcess.spawn(
-      'node_modules/istanbul/lib/cli.js',
-      ['cover', '--source-map', '--', './spec/env/runner.js'],
-      { stdio: 'inherit' }
-    );
-    runner.on('exit', function(code) {
-      if (code !== 0) {
-        grunt.fatal(code + ' tests failed');
-      }
-      done();
-    });
-  });
-  grunt.registerTask('test:min', function() {
-    const done = this.async();
-
-    const runner = childProcess.fork('./spec/env/runner', ['--min'], {
-      stdio: 'inherit'
-    });
-    runner.on('close', function(code) {
-      if (code !== 0) {
-        grunt.fatal(code + ' tests failed');
-      }
-      done();
-    });
-  });
-
-  grunt.registerTask('test:check-cov', function() {
-    const done = this.async();
-
-    const runner = childProcess.fork(
-      'node_modules/istanbul/lib/cli.js',
-      [
-        'check-coverage',
-        '--statements',
-        '100',
-        '--functions',
-        '100',
-        '--branches',
-        '100',
-        '--lines 100'
-      ],
-      { stdio: 'inherit' }
-    );
-    runner.on('close', function(code) {
-      if (code != 0) {
-        grunt.fatal('Coverage check failed: ' + code);
-      }
-      done();
-    });
-  });
-  grunt.registerTask('test', ['test:bin', 'test:cov', 'test:check-cov']);
-};

From 3a5b65e02be8949e778cf2a93d71f6cc49a31232 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 12 Dec 2019 22:19:30 +0100
Subject: [PATCH 133/191] test/style: refactor parser task

---
 tasks/parser.js                | 58 +++++++++++-------------
 tasks/test-bin.js              | 80 +++++++++++++++------------------
 tasks/test-mocha.js            | 82 +++++++++++-----------------------
 tasks/util/async-grunt-task.js | 13 ++++++
 tasks/util/exec-file.js        | 51 +++++++++++++++++++++
 5 files changed, 151 insertions(+), 133 deletions(-)
 create mode 100644 tasks/util/async-grunt-task.js
 create mode 100644 tasks/util/exec-file.js

diff --git a/tasks/parser.js b/tasks/parser.js
index a0c19e47e..252b8c267 100644
--- a/tasks/parser.js
+++ b/tasks/parser.js
@@ -1,39 +1,33 @@
-const childProcess = require('child_process');
+const { execFileWithInheritedOutput } = require('./util/exec-file');
+const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
 
-module.exports = function(grunt) {
-  grunt.registerTask('parser', 'Generate jison parser.', function() {
-    const done = this.async();
+const OUTPUT_FILE = 'lib/handlebars/compiler/parser.js';
 
-    let cmd = './node_modules/.bin/jison';
+module.exports = function(grunt) {
+  const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-    if (process.platform === 'win32') {
-      cmd = 'node_modules\\.bin\\jison.cmd';
-    }
+  registerAsyncTask('parser', async () => {
+    await runJison();
+    combineWithPrefixAndSuffix();
+    grunt.log.writeln(`Parser "${OUTPUT_FILE}" created.`);
+  });
 
-    const child = childProcess.spawn(
-      cmd,
-      ['-m', 'js', 'src/handlebars.yy', 'src/handlebars.l'],
-      { stdio: 'inherit' }
-    );
-    child.on('exit', function(code) {
-      if (code != 0) {
-        grunt.fatal('Jison failure: ' + code);
-        done();
-        return;
-      }
+  async function runJison() {
+    await execFileWithInheritedOutput('jison', [
+      '-m',
+      'js',
+      'src/handlebars.yy',
+      'src/handlebars.l'
+    ]);
+  }
 
-      const src = [
-        'src/parser-prefix.js',
-        'handlebars.js',
-        'src/parser-suffix.js'
-      ]
-        .map(grunt.file.read)
-        .join('');
-      grunt.file.delete('handlebars.js');
+  function combineWithPrefixAndSuffix() {
+    const combinedParserSourceCode =
+      grunt.file.read('src/parser-prefix.js') +
+      grunt.file.read('handlebars.js') +
+      grunt.file.read('src/parser-suffix.js');
 
-      grunt.file.write('lib/handlebars/compiler/parser.js', src);
-      grunt.log.writeln('Parser "lib/handlebars/compiler/parser.js" created.');
-      done();
-    });
-  });
+    grunt.file.write(OUTPUT_FILE, combinedParserSourceCode);
+    grunt.file.delete('handlebars.js');
+  }
 };
diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index 48c0ded87..8873c9f01 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -1,55 +1,45 @@
 const childProcess = require('child_process'),
   fs = require('fs'),
   os = require('os'),
-  expect = require('chai').expect,
-  util = require('util');
-
-const readFile = util.promisify(fs.readFile);
-const execFile = util.promisify(childProcess.execFile);
+  expect = require('chai').expect;
 
 module.exports = function(grunt) {
-  grunt.registerTask(
-    'test:bin',
-    wrapAsync(async function() {
-      const { stdout } = await execFileWithWin32Fallback('./bin/handlebars', [
-        '-a',
-        'spec/artifacts/empty.handlebars'
-      ]);
-
-      const expectedOutput = await readFile(
-        './spec/expected/empty.amd.js',
-        'utf-8'
-      );
-
-      const normalizedOutput = normalizeCrlf(stdout);
-      const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
-      expect(normalizedOutput).to.equal(normalizedExpectedOutput);
-    })
-  );
-
-  async function execFileWithWin32Fallback(command, args) {
+  grunt.registerTask('test:bin', function() {
+    const stdout = executeBinHandlebars(
+      '-a',
+      'spec/artifacts/empty.handlebars'
+    );
+
+    const expectedOutput = fs.readFileSync(
+      './spec/expected/empty.amd.js',
+      'utf-8'
+    );
+
+    const normalizedOutput = normalizeCrlf(stdout);
+    const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
+
+    expect(normalizedOutput).to.equal(normalizedExpectedOutput);
+  });
+};
+
+// helper functions
+
+function executeBinHandlebars(...args) {
+  if (os.platform() === 'win32') {
     // On Windows, the executable handlebars.js file cannot be run directly
-    if (os.platform() === 'win32') {
-      args.unshift(command);
-      command = process.argv[0];
-    }
-    return execFile(command, args, { encoding: 'utf-8' });
+    const nodeJs = process.argv[0];
+    return execFilesSyncUtf8(nodeJs, ['./bin/handlebars'].concat(args));
   }
+  return execFilesSyncUtf8('./bin/handlebars', args);
+}
 
-  function normalizeCrlf(string) {
-    if (string != null) {
-      return string.replace(/\r\n/g, '\n');
-    }
-    return string;
-  }
+function execFilesSyncUtf8(command, args) {
+  return childProcess.execFileSync(command, args, { encoding: 'utf-8' });
+}
 
-  function wrapAsync(asyncFunction) {
-    return function() {
-      asyncFunction()
-        .catch(error => {
-          grunt.fatal(error);
-        })
-        .finally(this.async());
-    };
+function normalizeCrlf(string) {
+  if (typeof string === 'string') {
+    return string.replace(/\r\n/g, '\n');
   }
-};
+  return string;
+}
diff --git a/tasks/test-mocha.js b/tasks/test-mocha.js
index 9bed2c63e..445a88cf3 100644
--- a/tasks/test-mocha.js
+++ b/tasks/test-mocha.js
@@ -1,66 +1,36 @@
-const childProcess = require('child_process');
+const { execNodeJsScriptWithInheritedOutput } = require('./util/exec-file');
+const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
 
 module.exports = function(grunt) {
-  grunt.registerTask(
-    'test:mocha',
-    promiseBasedTask(async () => forkAndWait('./spec/env/runner'))
-  );
+  const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-  grunt.registerTask(
-    'test:cov',
-    promiseBasedTask(async () =>
-      forkAndWait(
-        'node_modules/istanbul/lib/cli.js',
-        'cover',
-        '--source-map',
-        '--',
-        './spec/env/runner.js'
-      )
-    )
+  registerAsyncTask('test:mocha', async () =>
+    execNodeJsScriptWithInheritedOutput('./spec/env/runner')
   );
 
-  grunt.registerTask(
-    'test:min',
-    promiseBasedTask(async () => forkAndWait('./spec/env/runner', '--min'))
+  registerAsyncTask('test:cov', async () =>
+    execNodeJsScriptWithInheritedOutput('node_modules/istanbul/lib/cli.js', [
+      'cover',
+      '--source-map',
+      '--',
+      './spec/env/runner.js'
+    ])
   );
 
-  grunt.registerTask(
-    'test:check-cov',
-    promiseBasedTask(() =>
-      forkAndWait(
-        'node_modules/istanbul/lib/cli.js',
-        'check-coverage',
-        '--statements',
-        '100',
-        '--functions',
-        '100',
-        '--branches',
-        '100',
-        '--lines 100'
-      )
-    )
+  registerAsyncTask('test:min', async () =>
+    execNodeJsScriptWithInheritedOutput('./spec/env/runner', ['--min'])
   );
 
-  function promiseBasedTask(asyncFunction) {
-    return function() {
-      asyncFunction()
-        .catch(error => {
-          grunt.fatal(error);
-        })
-        .finally(this.async());
-    };
-  }
-
-  async function forkAndWait(command, ...args) {
-    return new Promise((resolve, reject) => {
-      const child = childProcess.fork(command, args, { stdio: 'inherit' });
-      child.on('close', code => {
-        if (code !== 0) {
-          reject(new Error(`Child process failed with exit-code ${code}`));
-        }
-      });
-    });
-  }
-
-  grunt.registerTask('test', ['test:bin', 'test:cov', 'test:check-cov']);
+  registerAsyncTask('test:check-cov', async () =>
+    execNodeJsScriptWithInheritedOutput('node_modules/istanbul/lib/cli.js', [
+      'check-coverage',
+      '--statements',
+      '100',
+      '--functions',
+      '100',
+      '--branches',
+      '100',
+      '--lines 100'
+    ])
+  );
 };
diff --git a/tasks/util/async-grunt-task.js b/tasks/util/async-grunt-task.js
new file mode 100644
index 000000000..20360570f
--- /dev/null
+++ b/tasks/util/async-grunt-task.js
@@ -0,0 +1,13 @@
+module.exports = { createRegisterAsyncTaskFn };
+
+function createRegisterAsyncTaskFn(grunt) {
+  return function registerAsyncTask(name, asyncFunction) {
+    grunt.registerTask(name, function() {
+      asyncFunction()
+        .catch(error => {
+          grunt.fatal(error);
+        })
+        .finally(this.async());
+    });
+  };
+}
diff --git a/tasks/util/exec-file.js b/tasks/util/exec-file.js
new file mode 100644
index 000000000..66fd8e92a
--- /dev/null
+++ b/tasks/util/exec-file.js
@@ -0,0 +1,51 @@
+const childProcess = require('child_process');
+const fs = require('fs');
+const path = require('path');
+
+module.exports = {
+  execNodeJsScriptWithInheritedOutput,
+  execFileWithInheritedOutput
+};
+
+async function execNodeJsScriptWithInheritedOutput(command, args) {
+  return new Promise((resolve, reject) => {
+    const child = childProcess.fork(command, args, { stdio: 'inherit' });
+    child.on('close', code => {
+      if (code !== 0) {
+        reject(new Error(`Child process failed with exit-code ${code}`));
+      }
+      resolve();
+    });
+  });
+}
+
+async function execFileWithInheritedOutput(command, args) {
+  return new Promise((resolve, reject) => {
+    const resolvedCommand = preferLocalDependencies(command);
+    const child = childProcess.spawn(resolvedCommand, args, {
+      stdio: 'inherit'
+    });
+    child.on('exit', code => {
+      if (code !== 0) {
+        reject(new Error(`Child process failed with exit-code ${code}`));
+      }
+      resolve();
+    });
+  });
+}
+
+function preferLocalDependencies(command) {
+  const localCandidate = resolveLocalCandidate(command);
+
+  if (fs.existsSync(localCandidate)) {
+    return localCandidate;
+  }
+  return command;
+}
+
+function resolveLocalCandidate(command) {
+  if (process.platform === 'win32') {
+    return path.join('node_modules', '.bin', command + '.cmd');
+  }
+  return path.join('node_modules', '.bin', command);
+}

From 1ebce2b53cb62d81954b64f48bc0bc7112395c8a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 12 Dec 2019 23:04:35 +0100
Subject: [PATCH 134/191] test/style: use nyc instead of istanbul, npm audit
 fix

---
 .istanbul.yml       |    2 -
 Gruntfile.js        |    2 +-
 nyc.config.js       |    9 +
 package-lock.json   | 1116 +++++++++++++++++++++++++++++++++----------
 package.json        |    4 +-
 spec/builtins.js    |   17 +
 tasks/test-mocha.js |   20 +-
 7 files changed, 905 insertions(+), 265 deletions(-)
 delete mode 100644 .istanbul.yml
 create mode 100644 nyc.config.js

diff --git a/.istanbul.yml b/.istanbul.yml
deleted file mode 100644
index 960643ef4..000000000
--- a/.istanbul.yml
+++ /dev/null
@@ -1,2 +0,0 @@
-instrumentation:
-    excludes: ['**/spec/**', '**/handlebars/compiler/parser.js']
diff --git a/Gruntfile.js b/Gruntfile.js
index 84a361581..0326cfc89 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -263,7 +263,7 @@ module.exports = function(grunt) {
 
   this.registerTask('amd', ['babel:amd', 'requirejs']);
 
-  this.registerTask('test', ['test:bin', 'test:cov', 'test:check-cov']);
+  this.registerTask('test', ['test:bin', 'test:cov']);
 
   grunt.registerTask('bench', ['metrics']);
 
diff --git a/nyc.config.js b/nyc.config.js
new file mode 100644
index 000000000..f516eb2b4
--- /dev/null
+++ b/nyc.config.js
@@ -0,0 +1,9 @@
+module.exports = {
+  'check-coverage': true,
+  branches: 100,
+  lines: 100,
+  functions: 100,
+  statements: 100,
+  exclude: ['**/spec/**', '**/handlebars/compiler/parser.js'],
+  reporter: 'html'
+};
diff --git a/package-lock.json b/package-lock.json
index 79fc1b9c4..9c79a3d74 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,67 @@
         "@babel/highlight": "^7.0.0"
       }
     },
+    "@babel/generator": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.7.4.tgz",
+      "integrity": "sha512-m5qo2WgdOJeyYngKImbkyQrnUN1mPceaG5BV+G0E3gWsa4l/jCSryWJdM2x8OuGAOyh+3d5pVYfZWCiNFtynxg==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.7.4",
+        "jsesc": "^2.5.1",
+        "lodash": "^4.17.13",
+        "source-map": "^0.5.0"
+      },
+      "dependencies": {
+        "jsesc": {
+          "version": "2.5.2",
+          "resolved": "https://registry.npmjs.org/jsesc/-/jsesc-2.5.2.tgz",
+          "integrity": "sha512-OYu7XEzjkCQ3C5Ps3QIZsQfNpqoJyZZA99wd9aWd05NCtC5pWOkShK2mkL6HXQR6/Cy2lbNdPlZBpuQHXE63gA==",
+          "dev": true
+        },
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true
+        }
+      }
+    },
+    "@babel/helper-function-name": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.7.4.tgz",
+      "integrity": "sha512-AnkGIdiBhEuiwdoMnKm7jfPfqItZhgRaZfMg1XX3bS25INOnLPjPG1Ppnajh8eqgt5kPJnfqrRHqFqmjKDZLzQ==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-get-function-arity": "^7.7.4",
+        "@babel/template": "^7.7.4",
+        "@babel/types": "^7.7.4"
+      }
+    },
+    "@babel/helper-get-function-arity": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.7.4.tgz",
+      "integrity": "sha512-QTGKEdCkjgzgfJ3bAyRwF4yyT3pg+vDgan8DSivq1eS0gwi+KGKE5x8kRcbeFTb/673mkO5SN1IZfmCfA5o+EA==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.7.4"
+      }
+    },
+    "@babel/helper-split-export-declaration": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.7.4.tgz",
+      "integrity": "sha512-guAg1SXFcVr04Guk9eq0S4/rWS++sbmyqosJzVs8+1fH5NI+ZcmkaSkc7dmtAFbHFva6yRJnjW3yAcGxjueDug==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.7.4"
+      }
+    },
     "@babel/highlight": {
       "version": "7.5.0",
       "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
@@ -61,6 +122,12 @@
         }
       }
     },
+    "@babel/parser": {
+      "version": "7.7.5",
+      "resolved": "https://registry.npmjs.org/@babel/parser/-/parser-7.7.5.tgz",
+      "integrity": "sha512-KNlOe9+/nk4i29g0VXgl8PEXIRms5xKLJeuZ6UptN0fHv+jDiriG+y94X6qAgWTR0h3KaoM1wK5G5h7MHFRSig==",
+      "dev": true
+    },
     "@babel/runtime": {
       "version": "7.6.3",
       "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.6.3.tgz",
@@ -70,6 +137,88 @@
         "regenerator-runtime": "^0.13.2"
       }
     },
+    "@babel/template": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.7.4.tgz",
+      "integrity": "sha512-qUzihgVPguAzXCK7WXw8pqs6cEwi54s3E+HrejlkuWO6ivMKx9hZl3Y2fSXp9i5HgyWmj7RKP+ulaYnKM4yYxw==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.0.0",
+        "@babel/parser": "^7.7.4",
+        "@babel/types": "^7.7.4"
+      }
+    },
+    "@babel/traverse": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.7.4.tgz",
+      "integrity": "sha512-P1L58hQyupn8+ezVA2z5KBm4/Zr4lCC8dwKCMYzsa5jFMDMQAzaBNy9W5VjB+KAmBjb40U7a/H6ao+Xo+9saIw==",
+      "dev": true,
+      "requires": {
+        "@babel/code-frame": "^7.5.5",
+        "@babel/generator": "^7.7.4",
+        "@babel/helper-function-name": "^7.7.4",
+        "@babel/helper-split-export-declaration": "^7.7.4",
+        "@babel/parser": "^7.7.4",
+        "@babel/types": "^7.7.4",
+        "debug": "^4.1.0",
+        "globals": "^11.1.0",
+        "lodash": "^4.17.13"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "4.1.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
+          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "globals": {
+          "version": "11.12.0",
+          "resolved": "https://registry.npmjs.org/globals/-/globals-11.12.0.tgz",
+          "integrity": "sha512-WOBp/EEGUiIsJSp7wcv/y6MO+lV9UoncWqxuFfm8eBwzWNgyfBd6Gz+IeKQ9jCmyhoH99g15M3T+QaVHFjizVA==",
+          "dev": true
+        },
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        },
+        "ms": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/types": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.7.4.tgz",
+      "integrity": "sha512-cz5Ji23KCi4T+YIE/BolWosrJuSmoZeN1EFnRtBwF+KKLi8GG/Z2c2hOJJeCXPk4mwk4QFvTmwIodJowXgttRA==",
+      "dev": true,
+      "requires": {
+        "esutils": "^2.0.2",
+        "lodash": "^4.17.13",
+        "to-fast-properties": "^2.0.0"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.15",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
+          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+          "dev": true
+        },
+        "to-fast-properties": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+          "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+          "dev": true
+        }
+      }
+    },
     "@knappi/grunt-saucelabs": {
       "version": "9.0.2",
       "resolved": "https://registry.npmjs.org/@knappi/grunt-saucelabs/-/grunt-saucelabs-9.0.2.tgz",
@@ -393,6 +542,21 @@
         "normalize-path": "^2.0.0"
       }
     },
+    "append-transform": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/append-transform/-/append-transform-1.0.0.tgz",
+      "integrity": "sha512-P009oYkeHyU742iSZJzZZywj4QRJdnTWffaKuJQLablCZ1uz6/cW4yaRgcDaoQ+uwOxxnt0gRUcwfsNP2ri0gw==",
+      "dev": true,
+      "requires": {
+        "default-require-extensions": "^2.0.0"
+      }
+    },
+    "archy": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/archy/-/archy-1.0.0.tgz",
+      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
+      "dev": true
+    },
     "argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -676,6 +840,15 @@
         "try-resolve": "^1.0.0"
       },
       "dependencies": {
+        "minimatch": {
+          "version": "2.0.10",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-2.0.10.tgz",
+          "integrity": "sha1-jQh8OcazjAAbl/ynzm0OHoCvusc=",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^1.0.0"
+          }
+        },
         "source-map": {
           "version": "0.5.7",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
@@ -1120,6 +1293,18 @@
         }
       }
     },
+    "caching-transform": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/caching-transform/-/caching-transform-3.0.2.tgz",
+      "integrity": "sha512-Mtgcv3lh3U0zRii/6qVgQODdPA4G3zhG+jtbCWj39RXuUFTMzH0vcdMtaJS1jPowd+It2Pqr6y3NJMQqOqCE2w==",
+      "dev": true,
+      "requires": {
+        "hasha": "^3.0.0",
+        "make-dir": "^2.0.0",
+        "package-hash": "^3.0.0",
+        "write-file-atomic": "^2.4.2"
+      }
+    },
     "caller-callsite": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/caller-callsite/-/caller-callsite-2.0.0.tgz",
@@ -1462,6 +1647,12 @@
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.19.0.tgz",
       "integrity": "sha512-6tvAOO+D6OENvRAh524Dh9jcfKTYDQAqvqezbCW82xj5X0pSrcpxtvRKHLG0yBY6SD7PSDrJaj+0AiOcKVd1Xg=="
     },
+    "commondir": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
+      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
+      "dev": true
+    },
     "commoner": {
       "version": "0.10.8",
       "resolved": "https://registry.npmjs.org/commoner/-/commoner-0.10.8.tgz",
@@ -1884,6 +2075,27 @@
         }
       }
     },
+    "cp-file": {
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/cp-file/-/cp-file-6.2.0.tgz",
+      "integrity": "sha512-fmvV4caBnofhPe8kOcitBwSn2f39QLjnAnGq3gO9dfd75mUytzKNZB1hde6QHunW2Rt+OwuBOMc3i1tNElbszA==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.2",
+        "make-dir": "^2.0.0",
+        "nested-error-stacks": "^2.0.0",
+        "pify": "^4.0.1",
+        "safe-buffer": "^5.0.1"
+      },
+      "dependencies": {
+        "pify": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
+          "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+          "dev": true
+        }
+      }
+    },
     "cross-spawn": {
       "version": "6.0.5",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-6.0.5.tgz",
@@ -1991,6 +2203,23 @@
       "integrity": "sha1-s2nW+128E+7PUk+RsHD+7cNXzzQ=",
       "dev": true
     },
+    "default-require-extensions": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/default-require-extensions/-/default-require-extensions-2.0.0.tgz",
+      "integrity": "sha1-9fj7sYp9bVCyH2QfZJ67Uiz+JPc=",
+      "dev": true,
+      "requires": {
+        "strip-bom": "^3.0.0"
+      },
+      "dependencies": {
+        "strip-bom": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+          "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+          "dev": true
+        }
+      }
+    },
     "define-property": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/define-property/-/define-property-2.0.2.tgz",
@@ -2489,6 +2718,12 @@
         "is-arrayish": "^0.2.1"
       }
     },
+    "es6-error": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/es6-error/-/es6-error-4.1.1.tgz",
+      "integrity": "sha512-Um/+FxMr9CISWh0bi5Zv0iOD+4cFh5qLeks1qhAopKVAJw3drgKbKySikp7wGhDL0HPeaja0P5ULZrxLkniUVg==",
+      "dev": true
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+        },
+        "yargs": {
+          "version": "13.3.0",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.0.tgz",
+          "integrity": "sha512-2eehun/8ALW8TLoIl7MVaRUrg+yCnenu8B4kBlRxj3GJGDKU1Og7sMXPNm1BYyM1DOJmTZ4YeN/Nwxv+8XJsUA==",
+          "dev": true,
+          "requires": {
+            "cliui": "^5.0.0",
+            "find-up": "^3.0.0",
+            "get-caller-file": "^2.0.1",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^2.0.0",
+            "set-blocking": "^2.0.0",
+            "string-width": "^3.0.0",
+            "which-module": "^2.0.0",
+            "y18n": "^4.0.0",
+            "yargs-parser": "^13.1.1"
+          }
+        },
+        "yargs-parser": {
+          "version": "13.1.1",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.1.tgz",
+          "integrity": "sha512-oVAVsHz6uFrg3XQheFII8ESO2ssAf9luWuAd6Wexsu4F3OtIW0o8IribPXYrD4WC24LWtPrJlGy87y5udK+dxQ==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
+        }
+      }
+    },
     "oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
@@ -7633,6 +8112,18 @@
       "integrity": "sha1-yyhoVA4xPWHeWPr741zpAE1VQOY=",
       "dev": true
     },
+    "package-hash": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/package-hash/-/package-hash-3.0.0.tgz",
+      "integrity": "sha512-lOtmukMDVvtkL84rJHI7dpTYq+0rli8N2wlnqUcBuDWCfVhRUfOmnR9SsoHFMLpACvEV60dX7rd0rFaYDZI+FA==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.15",
+        "hasha": "^3.0.0",
+        "lodash.flattendeep": "^4.4.0",
+        "release-zalgo": "^1.0.0"
+      }
+    },
     "pako": {
       "version": "0.2.9",
       "resolved": "https://registry.npmjs.org/pako/-/pako-0.2.9.tgz",
@@ -7948,6 +8439,12 @@
       "integrity": "sha1-0/wRS6BplaRexok/SEzrHXj19HY=",
       "dev": true
     },
+    "pseudomap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
+      "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
+      "dev": true
+    },
     "psl": {
       "version": "1.1.31",
       "resolved": "https://registry.npmjs.org/psl/-/psl-1.1.31.tgz",
@@ -8510,6 +9007,15 @@
         "jsesc": "~0.5.0"
       }
     },
+    "release-zalgo": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/release-zalgo/-/release-zalgo-1.0.0.tgz",
+      "integrity": "sha1-CXALflB0Mpc5Mw5TXFqQ+2eFFzA=",
+      "dev": true,
+      "requires": {
+        "es6-error": "^4.0.1"
+      }
+    },
     "remove-trailing-separator": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/remove-trailing-separator/-/remove-trailing-separator-1.1.0.tgz",
@@ -8858,9 +9364,9 @@
       "dev": true
     },
     "set-value": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
-      "integrity": "sha512-hw0yxk9GT/Hr5yJEYnHNKYXkIA8mVJgd9ditYZCe16ZczcaELYYcfvaXesNACk2O8O0nTiPQcQhGUQj8JLzeeg==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.1.tgz",
+      "integrity": "sha512-JxHc1weCN68wRY0fhCoXpyK55m/XPHafOmK4UWD7m2CI14GMcFypt4w/0+NV5f/ZMby2F6S2wwA7fgynh9gWSw==",
       "dev": true,
       "requires": {
         "extend-shallow": "^2.0.1",
@@ -9205,6 +9711,20 @@
       "integrity": "sha1-YvXpRmmBwbeW3Fkpk34RycaSG9A=",
       "dev": true
     },
+    "spawn-wrap": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/spawn-wrap/-/spawn-wrap-1.4.3.tgz",
+      "integrity": "sha512-IgB8md0QW/+tWqcavuFgKYR/qIRvJkRLPJDFaoXtLLUaVcCDK0+HeFTkmQHj3eprcYhc+gOl0aEA1w7qZlYezw==",
+      "dev": true,
+      "requires": {
+        "foreground-child": "^1.5.6",
+        "mkdirp": "^0.5.0",
+        "os-homedir": "^1.0.1",
+        "rimraf": "^2.6.2",
+        "signal-exit": "^3.0.2",
+        "which": "^1.3.0"
+      }
+    },
     "spdx-correct": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
@@ -9532,6 +10052,122 @@
       "integrity": "sha1-KcNXB8K3DlDQdIK10gLo7URtr9Q=",
       "dev": true
     },
+    "test-exclude": {
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-5.2.3.tgz",
+      "integrity": "sha512-M+oxtseCFO3EDtAaGH7iiej3CBkzXqFMbzqYAACdzKui4eZA+pq3tZEwChvOdNfa7xxy8BfbmgJSIr43cC/+2g==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.1.3",
+        "minimatch": "^3.0.4",
+        "read-pkg-up": "^4.0.0",
+        "require-main-filename": "^2.0.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "load-json-file": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/load-json-file/-/load-json-file-4.0.0.tgz",
+          "integrity": "sha1-L19Fq5HjMhYjT9U62rZo607AmTs=",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "parse-json": "^4.0.0",
+            "pify": "^3.0.0",
+            "strip-bom": "^3.0.0"
+          }
+        },
+        "minimatch": {
+          "version": "3.0.4",
+          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
+          "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+          "dev": true,
+          "requires": {
+            "brace-expansion": "^1.1.7"
+          }
+        },
+        "parse-json": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-4.0.0.tgz",
+          "integrity": "sha1-vjX1Qlvh9/bHRxhPmKeIy5lHfuA=",
+          "dev": true,
+          "requires": {
+            "error-ex": "^1.3.1",
+            "json-parse-better-errors": "^1.0.1"
+          }
+        },
+        "path-type": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-type/-/path-type-3.0.0.tgz",
+          "integrity": "sha512-T2ZUsdZFHgA3u4e5PfPbjd7HDDpxPnQb5jN0SrDsjNSuVXHJqtwTnWqG0B1jZrgmJ/7lj1EmVIByWt1gxGkWvg==",
+          "dev": true,
+          "requires": {
+            "pify": "^3.0.0"
+          }
+        },
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
+        },
+        "read-pkg": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-3.0.0.tgz",
+          "integrity": "sha1-nLxoaXj+5l0WwA4rGcI3/Pbjg4k=",
+          "dev": true,
+          "requires": {
+            "load-json-file": "^4.0.0",
+            "normalize-package-data": "^2.3.2",
+            "path-type": "^3.0.0"
+          }
+        },
+        "read-pkg-up": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-4.0.0.tgz",
+          "integrity": "sha512-6etQSH7nJGsK0RbG/2TeDzZFa8shjQ1um+SwQQ5cwKy0dhSXdOncEhb1CPpvQG4h7FyOV6EB6YlV0yJvZQNAkA==",
+          "dev": true,
+          "requires": {
+            "find-up": "^3.0.0",
+            "read-pkg": "^3.0.0"
+          }
+        },
+        "require-main-filename": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+          "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+          "dev": true
+        },
+        "strip-bom": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+          "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+          "dev": true
+        }
+      }
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
@@ -9916,38 +10552,15 @@
       }
     },
     "union-value": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
-      "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
+      "integrity": "sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==",
       "dev": true,
       "requires": {
         "arr-union": "^3.1.0",
         "get-value": "^2.0.6",
         "is-extendable": "^0.1.1",
-        "set-value": "^0.4.3"
-      },
-      "dependencies": {
-        "extend-shallow": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-          "dev": true,
-          "requires": {
-            "is-extendable": "^0.1.0"
-          }
-        },
-        "set-value": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
-          "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
-          "dev": true,
-          "requires": {
-            "extend-shallow": "^2.0.1",
-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
-          }
-        }
+        "set-value": "^2.0.1"
       }
     },
     "universalify": {
@@ -10453,6 +11066,17 @@
         "mkdirp": "^0.5.1"
       }
     },
+    "write-file-atomic": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.4.3.tgz",
+      "integrity": "sha512-GaETH5wwsX+GcnzhPgKcKjJ6M2Cq3/iZp1WyY/X1CSqrW+jVNM9Y7D8EC2sM4ZG/V8wZlSniJnCKWPmBYAucRQ==",
+      "dev": true,
+      "requires": {
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
+      }
+    },
     "xml2js": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.19.tgz",
@@ -10481,6 +11105,12 @@
       "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
       "dev": true
     },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
+    },
     "yargs": {
       "version": "3.27.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.27.0.tgz",
diff --git a/package.json b/package.json
index 9ce188bb0..6c8ca555d 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "eslint-config-prettier": "^6.7.0",
     "eslint-plugin-compat": "^3.3.0",
     "eslint-plugin-es5": "^1.4.1",
-    "grunt": "^1.0.3",
+    "grunt": "^1.0.4",
     "grunt-babel": "^5.0.0",
     "grunt-bg-shell": "^2.3.3",
     "grunt-cli": "^1",
@@ -57,12 +57,12 @@
     "grunt-contrib-watch": "^1.1.0",
     "grunt-webpack": "^1.0.8",
     "husky": "^3.1.0",
-    "istanbul": "^0.3.0",
     "jison": "~0.3.0",
     "lint-staged": "^9.5.0",
     "mocha": "^5",
     "mock-stdin": "^0.3.0",
     "mustache": "^2.1.3",
+    "nyc": "^14.1.1",
     "prettier": "^1.19.1",
     "semver": "^5.0.1",
     "sinon": "^7.5.0",
diff --git a/spec/builtins.js b/spec/builtins.js
index d6bc29868..c74092e1b 100644
--- a/spec/builtins.js
+++ b/spec/builtins.js
@@ -710,6 +710,23 @@ describe('builtin helpers', function() {
       shouldCompileTo(string, hash, '');
       equals(true, called);
     });
+
+    it('should pass zero log arguments', function() {
+      var string = '{{log}}';
+      var hash = { blah: 'whee' };
+      var called;
+
+      console.info = console.log = function() {
+        expect(arguments.length).to.equal(0);
+        called = true;
+        console.log = $log;
+      };
+
+      expectTemplate(string)
+        .withInput(hash)
+        .toCompileTo('');
+      expect(called).to.be.true();
+    });
     /* eslint-enable no-console */
   });
 
diff --git a/tasks/test-mocha.js b/tasks/test-mocha.js
index 445a88cf3..b412c8c05 100644
--- a/tasks/test-mocha.js
+++ b/tasks/test-mocha.js
@@ -1,5 +1,6 @@
 const { execNodeJsScriptWithInheritedOutput } = require('./util/exec-file');
 const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
+const nodeJs = process.argv0;
 
 module.exports = function(grunt) {
   const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
@@ -9,10 +10,8 @@ module.exports = function(grunt) {
   );
 
   registerAsyncTask('test:cov', async () =>
-    execNodeJsScriptWithInheritedOutput('node_modules/istanbul/lib/cli.js', [
-      'cover',
-      '--source-map',
-      '--',
+    execNodeJsScriptWithInheritedOutput('node_modules/nyc/bin/nyc', [
+      nodeJs,
       './spec/env/runner.js'
     ])
   );
@@ -20,17 +19,4 @@ module.exports = function(grunt) {
   registerAsyncTask('test:min', async () =>
     execNodeJsScriptWithInheritedOutput('./spec/env/runner', ['--min'])
   );
-
-  registerAsyncTask('test:check-cov', async () =>
-    execNodeJsScriptWithInheritedOutput('node_modules/istanbul/lib/cli.js', [
-      'check-coverage',
-      '--statements',
-      '100',
-      '--functions',
-      '100',
-      '--branches',
-      '100',
-      '--lines 100'
-    ])
-  );
 };

From 1ec1737d24a1a37e39ca4c24b0fdb7efd877e628 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 14 Dec 2019 01:49:55 +0100
Subject: [PATCH 135/191] test/style: refactor remaining grunt tasks to use
 promises instead of callbacks

---
 tasks/metrics.js  |  37 +++++-----
 tasks/publish.js  | 170 ++++++++++++++++++++++------------------------
 tasks/util/git.js | 155 ++++++++++++++++--------------------------
 tasks/version.js  | 108 ++++++++++++++---------------
 4 files changed, 211 insertions(+), 259 deletions(-)

diff --git a/tasks/metrics.js b/tasks/metrics.js
index bcb76318f..acc3cece4 100644
--- a/tasks/metrics.js
+++ b/tasks/metrics.js
@@ -1,26 +1,29 @@
-const _ = require('underscore'),
-  async = require('neo-async'),
-  metrics = require('../bench');
+const metrics = require('../bench');
+const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
 
 module.exports = function(grunt) {
-  grunt.registerTask('metrics', function() {
-    const done = this.async(),
-      execName = grunt.option('name'),
-      events = {};
+  const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-    async.each(
-      _.keys(metrics),
-      function(name, complete) {
-        if (/^_/.test(name) || (execName && name !== execName)) {
-          return complete();
-        }
+  registerAsyncTask('metrics', function() {
+    const onlyExecuteName = grunt.option('name');
+    const events = {};
 
+    const promises = Object.keys(metrics).map(async name => {
+      if (/^_/.test(name)) {
+        return;
+      }
+      if (onlyExecuteName != null && name !== onlyExecuteName) {
+        return;
+      }
+
+      return new Promise(resolve => {
         metrics[name](grunt, function(data) {
           events[name] = data;
-          complete();
+          resolve();
         });
-      },
-      done
-    );
+      });
+    });
+
+    return Promise.all(promises);
   });
 };
diff --git a/tasks/publish.js b/tasks/publish.js
index 207e281fe..54c99f5ca 100644
--- a/tasks/publish.js
+++ b/tasks/publish.js
@@ -1,54 +1,38 @@
-const _ = require('underscore'),
-  async = require('neo-async'),
-  AWS = require('aws-sdk'),
-  git = require('./util/git'),
-  semver = require('semver');
+const AWS = require('aws-sdk');
+const git = require('./util/git');
+const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
+const semver = require('semver');
 
 module.exports = function(grunt) {
-  grunt.registerTask('publish:latest', function() {
-    const done = this.async();
-
-    git.debug(function(remotes, branches) {
-      grunt.log.writeln('remotes: ' + remotes);
-      grunt.log.writeln('branches: ' + branches);
-
-      git.commitInfo(function(err, info) {
-        grunt.log.writeln('tag: ' + info.tagName);
-
-        const files = [];
-
-        // Publish the master as "latest" and with the commit-id
-        if (info.isMaster) {
-          files.push('-latest');
-          files.push('-' + info.head);
-        }
-
-        // Publish tags by their tag-name
-        if (info.tagName && semver.valid(info.tagName)) {
-          files.push('-' + info.tagName);
-        }
-
-        if (files.length > 0) {
-          initSDK();
-          grunt.log.writeln('publishing files: ' + JSON.stringify(files));
-          publish(fileMap(files), done);
-        } else {
-          // Silently ignore for branches
-          done();
-        }
-      });
-    });
-  });
-  grunt.registerTask('publish:version', function() {
-    const done = this.async();
-    initSDK();
+  const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-    git.commitInfo(function(err, info) {
-      if (!info.tagName) {
-        throw new Error('The current commit must be tagged');
-      }
-      publish(fileMap(['-' + info.tagName]), done);
-    });
+  registerAsyncTask('publish:latest', async () => {
+    grunt.log.writeln('remotes: ' + (await git.remotes()));
+    grunt.log.writeln('branches: ' + (await git.branches()));
+
+    const commitInfo = await git.commitInfo();
+    grunt.log.writeln('tag: ' + commitInfo.tagName);
+
+    const suffixes = [];
+
+    // Publish the master as "latest" and with the commit-id
+    if (commitInfo.isMaster) {
+      suffixes.push('-latest');
+      suffixes.push('-' + commitInfo.headSha);
+    }
+
+    // Publish tags by their tag-name
+    if (commitInfo.tagName && semver.valid(commitInfo.tagName)) {
+      suffixes.push('-' + commitInfo.tagName);
+    }
+
+    if (suffixes.length > 0) {
+      initSDK();
+      grunt.log.writeln(
+        'publishing file-suffixes: ' + JSON.stringify(suffixes)
+      );
+      await publish(suffixes);
+    }
   });
 
   function initSDK() {
@@ -62,45 +46,57 @@ module.exports = function(grunt) {
 
     AWS.config.update({ accessKeyId: key, secretAccessKey: secret });
   }
-  function publish(files, callback) {
-    const s3 = new AWS.S3(),
-      bucket = process.env.S3_BUCKET_NAME;
-
-    async.each(
-      _.keys(files),
-      function(file, callback) {
-        const params = {
-          Bucket: bucket,
-          Key: file,
-          Body: grunt.file.read(files[file])
-        };
-        s3.putObject(params, function(err) {
-          if (err) {
-            throw err;
-          } else {
-            grunt.log.writeln('Published ' + file + ' to build server.');
-            callback();
-          }
-        });
-      },
-      callback
-    );
+
+  async function publish(suffixes) {
+    const publishPromises = suffixes.map(suffix => publishSuffix(suffix));
+    return Promise.all(publishPromises);
   }
-  function fileMap(suffixes) {
-    const map = {};
-    _.each(
-      [
-        'handlebars.js',
-        'handlebars.min.js',
-        'handlebars.runtime.js',
-        'handlebars.runtime.min.js'
-      ],
-      function(file) {
-        _.each(suffixes, function(suffix) {
-          map[file.replace(/\.js$/, suffix + '.js')] = 'dist/' + file;
-        });
-      }
-    );
-    return map;
+
+  async function publishSuffix(suffix) {
+    const filenames = [
+      'handlebars.js',
+      'handlebars.min.js',
+      'handlebars.runtime.js',
+      'handlebars.runtime.min.js'
+    ];
+    const publishPromises = filenames.map(filename => {
+      const nameInBucket = getNameInBucket(filename, suffix);
+      const localFile = getLocalFile(filename);
+      uploadToBucket(localFile, nameInBucket);
+      grunt.log.writeln(
+        `Published ${localFile} to build server (${nameInBucket})`
+      );
+    });
+    return Promise.all(publishPromises);
+  }
+
+  async function uploadToBucket(localFile, nameInBucket) {
+    const bucket = process.env.S3_BUCKET_NAME;
+    const uploadParams = {
+      Bucket: bucket,
+      Key: nameInBucket,
+      Body: grunt.file.read(localFile)
+    };
+    return s3PutObject(uploadParams);
   }
 };
+
+function s3PutObject(uploadParams) {
+  const s3 = new AWS.S3();
+  return new Promise((resolve, reject) => {
+    s3.putObject(uploadParams, err => {
+      if (err != null) {
+        return reject(err);
+      }
+      resolve();
+    });
+  });
+}
+
+function getNameInBucket(filename, suffix) {
+  return filename.replace(/\.js$/, suffix + '.js');
+}
+
+function getLocalFile(filename) {
+  return 'dist/' + filename;
+}
diff --git a/tasks/util/git.js b/tasks/util/git.js
index 4dc5cbde0..a86fcbb6e 100644
--- a/tasks/util/git.js
+++ b/tasks/util/git.js
@@ -1,115 +1,74 @@
 const childProcess = require('child_process');
 
 module.exports = {
-  debug: function(callback) {
-    childProcess.exec('git remote -v', {}, function(err, remotes) {
-      if (err) {
-        throw new Error('git.remote: ' + err.message);
-      }
-
-      childProcess.exec('git branch -a', {}, function(err, branches) {
-        if (err) {
-          throw new Error('git.branch: ' + err.message);
-        }
-
-        callback(remotes, branches);
-      });
-    });
+  async remotes() {
+    return git('remotes', '-v');
   },
-  clean: function(callback) {
-    childProcess.exec('git diff-index --name-only HEAD --', {}, function(
-      err,
-      stdout
-    ) {
-      callback(undefined, !err && !stdout);
-    });
+  async branches() {
+    return git('branch', '-a');
   },
-
-  commitInfo: function(callback) {
-    module.exports.head(function(err, headSha) {
-      module.exports.master(function(err, masterSha) {
-        module.exports.tagName(function(err, tagName) {
-          callback(undefined, {
-            head: headSha,
-            master: masterSha,
-            tagName: tagName,
-            isMaster: headSha === masterSha
-          });
-        });
-      });
-    });
+  async clean() {
+    const stdout = git('diff-index', '--name-only', 'HEAD', '--');
+    return stdout === '';
   },
-
-  head: function(callback) {
-    childProcess.exec('git rev-parse --short HEAD', {}, function(err, stdout) {
-      if (err) {
-        throw new Error('git.head: ' + err.message);
-      }
-
-      callback(undefined, stdout.trim());
-    });
+  async commitInfo() {
+    const headSha = await this.headSha();
+    const masterSha = await this.masterSha();
+    return {
+      headSha,
+      masterSha,
+      tagName: await this.tagName(),
+      isMaster: headSha === masterSha
+    };
   },
-  master: function(callback) {
-    childProcess.exec('git rev-parse --short origin/master', {}, function(
-      err,
-      stdout
-    ) {
-      // This will error if master was not checked out but in this case we know we are not master
-      // so we can ignore.
-      if (err && !/Needed a single revision/.test(err.message)) {
-        throw new Error('git.master: ' + err.message);
-      }
-
-      callback(undefined, stdout.trim());
-    });
+  async headSha() {
+    const stdout = await git(' rev-parse', '--short', 'HEAD');
+    return stdout.trim();
   },
-
-  add: function(path, callback) {
-    childProcess.exec('git add -f ' + path, {}, function(err) {
-      if (err) {
-        throw new Error('git.add: ' + err.message);
+  async masterSha() {
+    try {
+      const stdout = await git('rev-parse', '--short', 'origin/master');
+      return stdout.trim();
+    } catch (error) {
+      if (/Needed a single revision/.test(error.message)) {
+        // Master was not checked out but in this case, so we know we are not master. We can ignore this
+        return '';
       }
-
-      callback();
-    });
+      throw error;
+    }
   },
-  commit: function(name, callback) {
-    childProcess.exec('git commit --message=' + name, {}, function(err) {
-      if (err) {
-        throw new Error('git.commit: ' + err.message);
-      }
 
-      callback();
-    });
+  async add(path) {
+    return git('add', '-f', path);
   },
-  tag: function(name, callback) {
-    childProcess.exec('git tag -a --message=' + name + ' ' + name, {}, function(
-      err
-    ) {
-      if (err) {
-        throw new Error('git.tag: ' + err.message);
-      }
-
-      callback();
-    });
+  async commit(message) {
+    return git('commit', '--message', message);
   },
-  tagName: function(callback) {
-    childProcess.exec('git describe --tags', {}, function(err, stdout) {
-      if (err) {
-        throw new Error('git.tagName: ' + err.message);
-      }
-
-      let tags = stdout.trim().split(/\n/);
-      tags = tags.filter(function(info) {
-        info = info.split('-');
-        return info.length == 1;
-      });
+  async tag(name) {
+    return git('tag', '-a', `--message=${name}`, name);
+  },
+  async tagName() {
+    const stdout = await git('tag', '-l', '--points-at', 'HEAD');
 
-      const versionTags = tags.filter(function(info) {
-        return /^v/.test(info[0]);
-      });
+    const tags = stdout.trim().split(/\n|\r\n/);
+    const versionTags = tags.filter(tag => /^v/.test(tag));
 
-      callback(undefined, versionTags[0] || tags[0]);
-    });
+    if (versionTags[0] != null) {
+      return versionTags;
+    }
+    return tags[0];
   }
 };
+
+async function git(...args) {
+  return new Promise((resolve, reject) =>
+    childProcess.execFile('git', args, (err, stdout) => {
+      if (err != null) {
+        return reject(
+          new Error(`"git ${args.join(' ')}" caused error: ${err.message}`)
+        );
+      }
+      resolve(stdout);
+    })
+  );
+}
diff --git a/tasks/version.js b/tasks/version.js
index f9d5c5675..ba89d1fd7 100644
--- a/tasks/version.js
+++ b/tasks/version.js
@@ -1,68 +1,62 @@
-const async = require('neo-async'),
-  git = require('./util/git'),
-  semver = require('semver');
+const git = require('./util/git');
+const semver = require('semver');
+const { createRegisterAsyncTaskFn } = require('./util/async-grunt-task');
 
 module.exports = function(grunt) {
-  grunt.registerTask(
-    'version',
-    'Updates the current release version',
-    function() {
-      const done = this.async(),
-        pkg = grunt.config('pkg'),
-        version = grunt.option('ver');
+  const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-      if (!semver.valid(version)) {
-        throw new Error(
-          'Must provide a version number (Ex: --ver=1.0.0):\n\t' +
-            version +
-            '\n\n'
-        );
-      }
-
-      pkg.version = version;
-      grunt.config('pkg', pkg);
-
-      grunt.log.writeln('Updating to version ' + version);
-
-      async.each(
-        [
-          [
-            'lib/handlebars/base.js',
-            /const VERSION = ['"](.*)['"];/,
-            "const VERSION = '" + version + "';"
-          ],
-          [
-            'components/bower.json',
-            /"version":.*/,
-            '"version": "' + version + '",'
-          ],
-          [
-            'components/package.json',
-            /"version":.*/,
-            '"version": "' + version + '",'
-          ],
-          [
-            'components/handlebars.js.nuspec',
-            /<version>.*<\/version>/,
-            '<version>' + version + '</version>'
-          ]
-        ],
-        function(args, callback) {
-          replace.apply(undefined, args);
-          grunt.log.writeln('    - ' + args[0]);
-          git.add(args[0], callback);
-        },
-        function() {
-          grunt.task.run(['default']);
-          done();
-        }
+  registerAsyncTask('version', async () => {
+    const pkg = grunt.config('pkg');
+    const version = grunt.option('ver');
+    if (!semver.valid(version)) {
+      throw new Error(
+        'Must provide a version number (Ex: --ver=1.0.0):\n\t' +
+          version +
+          '\n\n'
       );
     }
-  );
+    pkg.version = version;
+    grunt.config('pkg', pkg);
+
+    const replaceSpec = [
+      {
+        path: 'lib/handlebars/base.js',
+        regex: /const VERSION = ['"](.*)['"];/,
+        replacement: `const VERSION = '${version}';`
+      },
+      {
+        path: 'components/bower.json',
+        regex: /"version":.*/,
+        replacement: `"version": "${version}",`
+      },
+      {
+        path: 'components/package.json',
+        regex: /"version":.*/,
+        replacement: `"version": "${version}",`
+      },
+      {
+        path: 'components/handlebars.js.nuspec',
+        regex: /<version>.*<\/version>/,
+        replacement: `<version>${version}</version>`
+      }
+    ];
+
+    await Promise.all(
+      replaceSpec.map(replaceSpec =>
+        replaceAndAdd(
+          replaceSpec.path,
+          replaceSpec.regex,
+          replaceSpec.replacement
+        )
+      )
+    );
+    grunt.task.run(['default']);
+  });
 
-  function replace(path, regex, value) {
+  async function replaceAndAdd(path, regex, value) {
     let content = grunt.file.read(path);
     content = content.replace(regex, value);
     grunt.file.write(path, content);
+    await git.add(path);
   }
 };

From 14b621caf5bcdcbf7476b3286afbc30380d2cc3f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 14 Dec 2019 17:39:39 +0100
Subject: [PATCH 136/191] test/style: remove or hide unused code in git.js, add
 tests

---
 .eslintrc.js                            |   2 +-
 Gruntfile.js                            |   2 +-
 package-lock.json                       |  31 +++++-
 package.json                            |   3 +-
 tasks/{publish.js => publish-to-aws.js} |   6 +-
 tasks/task-tests/.eslintrc.js           |   9 ++
 tasks/task-tests/README.md              |   1 +
 tasks/task-tests/git.test.js            | 121 ++++++++++++++++++++++++
 tasks/task-tests/mocha.opts             |   0
 tasks/util/git.js                       |  71 +++++++-------
 10 files changed, 199 insertions(+), 47 deletions(-)
 rename tasks/{publish.js => publish-to-aws.js} (93%)
 create mode 100644 tasks/task-tests/.eslintrc.js
 create mode 100644 tasks/task-tests/README.md
 create mode 100644 tasks/task-tests/git.test.js
 create mode 100644 tasks/task-tests/mocha.opts

diff --git a/.eslintrc.js b/.eslintrc.js
index 0abcd5806..65c240939 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -17,7 +17,7 @@ module.exports = {
     // Best Practices //
     //----------------//
     'default-case': 'warn',
-    'dot-notation': ['error', { allowKeywords: false }],
+    'dot-notation': 'warn',
     'guard-for-in': 'warn',
     'no-alert': 'error',
     'no-caller': 'error',
diff --git a/Gruntfile.js b/Gruntfile.js
index 0326cfc89..65e0b8f33 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -279,7 +279,7 @@ module.exports = function(grunt) {
     'bgShell:integrationTests',
     'sauce',
     'metrics',
-    'publish:latest'
+    'publish-to-aws'
   ]);
   grunt.registerTask('on-file-change', [
     'build',
diff --git a/package-lock.json b/package-lock.json
index 9c79a3d74..5d119122f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2594,6 +2594,19 @@
         "strip-json-comments": "^2.0.1",
         "tslint": "^5.14.0",
         "typescript": "^3.4.3"
+      },
+      "dependencies": {
+        "fs-extra": {
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-6.0.1.tgz",
+          "integrity": "sha512-GnyIkKhhzXZUWFCaJzvyDLEEgDkPfb4/TPvJCJVuS8MWZgoSsErf++QpiAlDnKFcqhRlm+tIOcencCjyJE6ZCA==",
+          "dev": true,
+          "requires": {
+            "graceful-fs": "^4.1.2",
+            "jsonfile": "^4.0.0",
+            "universalify": "^0.1.0"
+          }
+        }
       }
     },
     "dustjs-linkedin": {
@@ -3699,14 +3712,22 @@
       "dev": true
     },
     "fs-extra": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-6.0.1.tgz",
-      "integrity": "sha1-irwSj3lG4xATXdyTuYvdtBDno0s=",
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-8.1.0.tgz",
+      "integrity": "sha512-yhlQgA6mnOJUKOsRUFsgJdQCvkKhcz8tlZG5HBQfReYZy46OwLcY+Zia0mtdHsOo9y/hP+CxMN0TU9QxoOtG4g==",
       "dev": true,
       "requires": {
-        "graceful-fs": "^4.1.2",
+        "graceful-fs": "^4.2.0",
         "jsonfile": "^4.0.0",
         "universalify": "^0.1.0"
+      },
+      "dependencies": {
+        "graceful-fs": {
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.3.tgz",
+          "integrity": "sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==",
+          "dev": true
+        }
       }
     },
     "fs-readdir-recursive": {
@@ -10566,7 +10587,7 @@
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
-      "integrity": "sha1-tkb2m+OULavOzJ1mOcgNwQXvqmY=",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
       "dev": true
     },
     "unpipe": {
diff --git a/package.json b/package.json
index 6c8ca555d..19f096a5a 100644
--- a/package.json
+++ b/package.json
@@ -44,6 +44,7 @@
     "eslint-config-prettier": "^6.7.0",
     "eslint-plugin-compat": "^3.3.0",
     "eslint-plugin-es5": "^1.4.1",
+    "fs-extra": "^8.1.0",
     "grunt": "^1.0.4",
     "grunt-babel": "^5.0.0",
     "grunt-bg-shell": "^2.3.3",
@@ -86,7 +87,7 @@
     "lint": "eslint --max-warnings 0 . ",
     "dtslint": "dtslint types",
     "test": "grunt",
-    "extensive-tests-and-publish-to-aws": "grunt --stack extensive-tests-and-publish-to-aws",
+    "extensive-tests-and-publish-to-aws": "npx mocha tasks/task-tests/ && grunt --stack extensive-tests-and-publish-to-aws",
     "integration-test": "grunt integration-tests",
     "--- combined tasks ---": "",
     "check-before-pull-request": "concurrently --kill-others-on-fail npm:lint npm:dtslint npm:check-format npm:test"
diff --git a/tasks/publish.js b/tasks/publish-to-aws.js
similarity index 93%
rename from tasks/publish.js
rename to tasks/publish-to-aws.js
index 54c99f5ca..b551e1c95 100644
--- a/tasks/publish.js
+++ b/tasks/publish-to-aws.js
@@ -6,12 +6,12 @@ const semver = require('semver');
 module.exports = function(grunt) {
   const registerAsyncTask = createRegisterAsyncTaskFn(grunt);
 
-  registerAsyncTask('publish:latest', async () => {
+  registerAsyncTask('publish-to-aws', async () => {
     grunt.log.writeln('remotes: ' + (await git.remotes()));
     grunt.log.writeln('branches: ' + (await git.branches()));
 
     const commitInfo = await git.commitInfo();
-    grunt.log.writeln('tag: ' + commitInfo.tagName);
+    grunt.log.writeln('tag: ', commitInfo.tagName);
 
     const suffixes = [];
 
@@ -22,7 +22,7 @@ module.exports = function(grunt) {
     }
 
     // Publish tags by their tag-name
-    if (commitInfo.tagName && semver.valid(commitInfo.tagName)) {
+    if (commitInfo.tagName != null && semver.valid(commitInfo.tagName)) {
       suffixes.push('-' + commitInfo.tagName);
     }
 
diff --git a/tasks/task-tests/.eslintrc.js b/tasks/task-tests/.eslintrc.js
new file mode 100644
index 000000000..604aeb2c0
--- /dev/null
+++ b/tasks/task-tests/.eslintrc.js
@@ -0,0 +1,9 @@
+module.exports = {
+  extends: '../../.eslintrc.js',
+  env: {
+    mocha: true
+  },
+  parserOptions: {
+    ecmaVersion: 2018
+  }
+};
diff --git a/tasks/task-tests/README.md b/tasks/task-tests/README.md
new file mode 100644
index 000000000..f4a88806c
--- /dev/null
+++ b/tasks/task-tests/README.md
@@ -0,0 +1 @@
+Use `mocha tasks/task-tests` to run these tests
diff --git a/tasks/task-tests/git.test.js b/tasks/task-tests/git.test.js
new file mode 100644
index 000000000..89546a8b8
--- /dev/null
+++ b/tasks/task-tests/git.test.js
@@ -0,0 +1,121 @@
+const os = require('os');
+const path = require('path');
+const fs = require('fs-extra');
+const chai = require('chai');
+chai.use(require('dirty-chai'));
+
+const git = require('../util/git');
+
+const expect = chai.expect;
+
+const tmpBaseDir = path.join(os.tmpdir(), 'handlebars-task-tests');
+const tmpDir = path.join(tmpBaseDir, Date.now().toString(36));
+const remoteDir = path.join(tmpDir, 'remote-repo');
+const cloneDir = path.join(tmpDir, 'clone-repo');
+const oldCwd = process.cwd();
+
+describe('utils/git', function() {
+  beforeEach(async function() {
+    await fs.remove(tmpDir);
+    await createRepositoryThatActsAsRemote();
+    process.chdir(tmpDir);
+    await git.git('clone', 'remote-repo', 'clone-repo');
+    process.chdir(cloneDir);
+  });
+
+  async function createRepositoryThatActsAsRemote() {
+    await fs.mkdirp(remoteDir);
+    process.chdir(remoteDir);
+
+    await git.git('init');
+    await fs.writeFile('testfile.txt', 'Testfile');
+    await git.add('testfile.txt');
+    await git.commit('commit message');
+  }
+
+  afterEach(function() {
+    process.chdir(oldCwd);
+  });
+
+  describe('the "remotes"-function', function() {
+    it('should list all remotes', async function() {
+      await git.git('remote', 'set-url', 'origin', 'https://test.org/test');
+      await git.git('remote', 'add', 'second-remote', 'https://test.org/test2');
+
+      const result = await git.remotes();
+
+      expect(result.trim().split('\n')).to.deep.equal([
+        'origin\thttps://test.org/test (fetch)',
+        'origin\thttps://test.org/test (push)',
+        'second-remote\thttps://test.org/test2 (fetch)',
+        'second-remote\thttps://test.org/test2 (push)'
+      ]);
+    });
+  });
+
+  describe('the "branches"-function', function() {
+    it('should list all branches', async function() {
+      await git.git('branch', 'test');
+      await git.git('branch', 'test2');
+
+      const result = await git.branches();
+      expect(result.trim().split('\n')).to.deep.equal([
+        '* master',
+        '  test',
+        '  test2',
+        '  remotes/origin/HEAD -> origin/master',
+        '  remotes/origin/master'
+      ]);
+    });
+  });
+
+  describe('the "commitInfo"-function', function() {
+    it('should list head and master sha', async function() {
+      const result = await git.commitInfo();
+      expect(result.masterSha).to.equal(result.headSha);
+      expect(result.masterSha).to.match(/^[0-9a-f]+$/);
+      expect(result.headSha).to.match(/^[0-9a-f]+$/);
+    });
+
+    it('should have "isMaster=true" if the master branch is checked out', async function() {
+      const result = await git.commitInfo();
+      expect(result.isMaster).to.be.true();
+    });
+
+    it('should have "isMaster=true" if the current commit is the last commit of the master branch', async function() {
+      await git.git('checkout', '-b', 'new-branch');
+
+      const result = await git.commitInfo();
+      expect(result.isMaster).to.be.true();
+    });
+
+    it('should have "isMaster=false" if the current commit is NOT the last commit of the master branch', async function() {
+      await git.git('checkout', '-b', 'new-branch');
+      fs.writeFile('new-file.txt', 'new-file');
+      await git.add('new-file.txt');
+      await git.commit('added new file');
+
+      const result = await git.commitInfo();
+      expect(result.isMaster).to.be.false();
+    });
+
+    it('should show the current tag', async function() {
+      await git.git('tag', 'test-tag');
+      const result = await git.commitInfo();
+      expect(result.tagName).to.be.equal('test-tag');
+    });
+
+    it('should show a version tag rather than standard tags', async function() {
+      await git.git('tag', 'test-tag');
+      await git.git('tag', 'v1.2');
+      await git.git('tag', 'test-tag2');
+      const result = await git.commitInfo();
+      expect(result.tagName).to.be.equal('v1.2');
+    });
+
+    it('should show no tag if there is no tag', async function() {
+      const result = await git.commitInfo();
+      expect(result.tagName).to.be.null();
+    });
+  });
+});
diff --git a/tasks/task-tests/mocha.opts b/tasks/task-tests/mocha.opts
new file mode 100644
index 000000000..e69de29bb
diff --git a/tasks/util/git.js b/tasks/util/git.js
index a86fcbb6e..46c9cbe7c 100644
--- a/tasks/util/git.js
+++ b/tasks/util/git.js
@@ -2,63 +2,62 @@ const childProcess = require('child_process');
 
 module.exports = {
   async remotes() {
-    return git('remotes', '-v');
+    return git('remote', '-v');
   },
   async branches() {
     return git('branch', '-a');
   },
-  async clean() {
-    const stdout = git('diff-index', '--name-only', 'HEAD', '--');
-    return stdout === '';
-  },
   async commitInfo() {
-    const headSha = await this.headSha();
-    const masterSha = await this.masterSha();
+    const headSha = await getHeadSha();
+    const masterSha = await getMasterSha();
     return {
       headSha,
       masterSha,
-      tagName: await this.tagName(),
+      tagName: await getTagName(),
       isMaster: headSha === masterSha
     };
   },
-  async headSha() {
-    const stdout = await git(' rev-parse', '--short', 'HEAD');
-    return stdout.trim();
-  },
-  async masterSha() {
-    try {
-      const stdout = await git('rev-parse', '--short', 'origin/master');
-      return stdout.trim();
-    } catch (error) {
-      if (/Needed a single revision/.test(error.message)) {
-        // Master was not checked out but in this case, so we know we are not master. We can ignore this
-        return '';
-      }
-      throw error;
-    }
-  },
-
   async add(path) {
     return git('add', '-f', path);
   },
   async commit(message) {
     return git('commit', '--message', message);
   },
-  async tag(name) {
-    return git('tag', '-a', `--message=${name}`, name);
-  },
-  async tagName() {
-    const stdout = await git('tag', '-l', '--points-at', 'HEAD');
+  git // visible for testing
+};
 
-    const tags = stdout.trim().split(/\n|\r\n/);
-    const versionTags = tags.filter(tag => /^v/.test(tag));
+async function getHeadSha() {
+  const stdout = await git('rev-parse', '--short', 'HEAD');
+  return stdout.trim();
+}
 
-    if (versionTags[0] != null) {
-      return versionTags;
+async function getMasterSha() {
+  try {
+    const stdout = await git('rev-parse', '--short', 'origin/master');
+    return stdout.trim();
+  } catch (error) {
+    if (/Needed a single revision/.test(error.message)) {
+      // Master was not checked out but in this case, so we know we are not master. We can ignore this
+      return '';
     }
-    return tags[0];
+    throw error;
   }
-};
+}
+
+async function getTagName() {
+  const stdout = await git('tag', '-l', '--points-at', 'HEAD');
+  const trimmedStdout = stdout.trim();
+  if (trimmedStdout === '') {
+    return null; // there is no tag
+  }
+
+  const tags = trimmedStdout.split(/\n|\r\n/);
+  const versionTags = tags.filter(tag => /^v/.test(tag));
+  if (versionTags[0] != null) {
+    return versionTags[0];
+  }
+  return tags[0];
+}
 
 async function git(...args) {
   return new Promise((resolve, reject) =>

From ac4655ee9516d5fc1b29d4d52e17c1751ffc8324 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 14 Dec 2019 17:48:08 +0100
Subject: [PATCH 137/191] chore: disable "dot-notation" rule

- I don't think it makes much sense. In some cases,
  it is more readable to wrap property access in quotes,
  some times not, but there is no universal rule
  for that.
- a promises "catch"-function should not be wrapped, but it has to
  be, if "allow-keywords" is set to false
- an "if"-helper should be wrapped, but it is not allowed to be
  if "allow-keywords" is set to true (default).
---
 .eslintrc.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/.eslintrc.js b/.eslintrc.js
index 65c240939..2ac729358 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -17,7 +17,6 @@ module.exports = {
     // Best Practices //
     //----------------//
     'default-case': 'warn',
-    'dot-notation': 'warn',
     'guard-for-in': 'warn',
     'no-alert': 'error',
     'no-caller': 'error',

From 164b7ff0de3041532b0ba671b3eefb7c0c5b5338 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sat, 14 Dec 2019 17:49:42 +0100
Subject: [PATCH 138/191] chore: ignore .nyc_output

---
 .eslintignore   | 1 +
 .gitignore      | 1 +
 .prettierignore | 1 +
 3 files changed, 3 insertions(+)

diff --git a/.eslintignore b/.eslintignore
index a64673018..714d84019 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -9,6 +9,7 @@ sauce_connect.log*
 yarn-error.log
 node_modules
 /handlebars-release.tgz
+.nyc_output
 
 # Generated files
 lib/handlebars/compiler/parser.js
diff --git a/.gitignore b/.gitignore
index 8922abaf6..59019b37d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,6 +10,7 @@ sauce_connect.log*
 /yarn.lock
 node_modules
 /handlebars-release.tgz
+.nyc_output
 
 # Generated files
 lib/handlebars/compiler/parser.js
diff --git a/.prettierignore b/.prettierignore
index b6bc46217..724620669 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -9,6 +9,7 @@ sauce_connect.log*
 yarn-error.log
 node_modules
 /handlebars-release.tgz
+.nyc_output
 
 # Generated files
 lib/handlebars/compiler/parser.js

From d03b6ecfc44e350fd08df752a9551d824287d7f5 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 16 Dec 2019 21:44:55 +0100
Subject: [PATCH 139/191] feat: access control to prototype properties via
 whitelist

Disallow access to prototype properties and methods by default.
Access to properties is always checked via
`Object.prototype.hasOwnProperty.call(parent, propertyName)`.

New runtime options:
- **allowedProtoMethods**: a string-to-boolean map of property-names that are allowed if they are methods of the parent object.
- **allowedProtoProperties**: a string-to-boolean map of property-names that are allowed if they are properties but not methods of the parent object.

```js
const template = handlebars.compile('{{aString.trim}}')
const result = template({ aString: '  abc  ' })
// result is empty, because trim is defined at String prototype
```

```js
const template = handlebars.compile('{{aString.trim}}')
const result = template({ aString: '  abc  ' }, {
  allowedProtoMethods: {
    trim: true
  }
})
// result = 'abc'
```

Implementation details: The method now "container.lookupProperty"
handles the prototype-checks and the white-lists. It is used in
- JavaScriptCompiler#nameLookup
- The "lookup"-helper (passed to all helpers as "options.lookupProperty")
- The "lookup" function at the container, which is used for recursive lookups in "compat" mode

Compatibility:
- **Old precompiled templates work with new runtimes**: The "options.lookupPropery"-function is passed to the helper by a wrapper, not by the compiled templated.
- **New templates work with old runtimes**: The template contains a function that is used as fallback if the "lookupProperty"-function cannot be found at the container. However, the runtime-options "allowedProtoProperties" and "allowedProtoMethods" only work with the newest runtime.

BREAKING CHANGE:
- access to prototype properties is forbidden completely by default
---
 .../compiler/javascript-compiler.js           |  54 +++---
 lib/handlebars/helpers/lookup.js              |  13 +-
 .../internal/createNewLookupObject.js         |  11 ++
 lib/handlebars/internal/wrapHelper.js         |   8 +
 lib/handlebars/runtime.js                     |  56 +++++-
 spec/blocks.js                                |   1 +
 spec/helpers.js                               |  11 ++
 spec/javascript-compiler.js                   |  25 +++
 spec/regressions.js                           |  54 +++++-
 spec/security.js                              | 182 +++++++++++++++---
 types/index.d.ts                              |   2 +
 types/test.ts                                 |  10 +
 12 files changed, 354 insertions(+), 73 deletions(-)
 create mode 100644 lib/handlebars/internal/createNewLookupObject.js
 create mode 100644 lib/handlebars/internal/wrapHelper.js

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index bcf9bb21c..63f90bdc2 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -2,7 +2,6 @@ import { COMPILER_REVISION, REVISION_CHANGES } from '../base';
 import Exception from '../exception';
 import { isArray } from '../utils';
 import CodeGen from './code-gen';
-import { dangerousPropertyRegex } from '../helpers/lookup';
 
 function Literal(value) {
   this.value = value;
@@ -13,27 +12,8 @@ function JavaScriptCompiler() {}
 JavaScriptCompiler.prototype = {
   // PUBLIC API: You can override these methods in a subclass to provide
   // alternative compiled forms for name lookup and buffering semantics
-  nameLookup: function(parent, name /* , type*/) {
-    if (dangerousPropertyRegex.test(name)) {
-      const isEnumerable = [
-        this.aliasable('container.propertyIsEnumerable'),
-        '.call(',
-        parent,
-        ',',
-        JSON.stringify(name),
-        ')'
-      ];
-      return ['(', isEnumerable, '?', _actualLookup(), ' : undefined)'];
-    }
-    return _actualLookup();
-
-    function _actualLookup() {
-      if (JavaScriptCompiler.isValidJavaScriptVariableName(name)) {
-        return [parent, '.', name];
-      } else {
-        return [parent, '[', JSON.stringify(name), ']'];
-      }
-    }
+  nameLookup: function(parent, name /*,  type */) {
+    return this.internalNameLookup(parent, name);
   },
   depthedLookup: function(name) {
     return [this.aliasable('container.lookup'), '(depths, "', name, '")'];
@@ -69,6 +49,12 @@ JavaScriptCompiler.prototype = {
     return this.quotedString('');
   },
   // END PUBLIC API
+  internalNameLookup: function(parent, name) {
+    this.lookupPropertyFunctionIsUsed = true;
+    return ['lookupProperty(', parent, ',', JSON.stringify(name), ')'];
+  },
+
+  lookupPropertyFunctionIsUsed: false,
 
   compile: function(environment, options, context, asObject) {
     this.environment = environment;
@@ -131,7 +117,11 @@ JavaScriptCompiler.prototype = {
     if (!this.decorators.isEmpty()) {
       this.useDecorators = true;
 
-      this.decorators.prepend('var decorators = container.decorators;\n');
+      this.decorators.prepend([
+        'var decorators = container.decorators, ',
+        this.lookupPropertyFunctionVarDeclaration(),
+        ';\n'
+      ]);
       this.decorators.push('return fn;');
 
       if (asObject) {
@@ -248,6 +238,10 @@ JavaScriptCompiler.prototype = {
       }
     });
 
+    if (this.lookupPropertyFunctionIsUsed) {
+      varDeclarations += ', ' + this.lookupPropertyFunctionVarDeclaration();
+    }
+
     let params = ['container', 'depth0', 'helpers', 'partials', 'data'];
 
     if (this.useBlockParams || this.useDepths) {
@@ -335,6 +329,17 @@ JavaScriptCompiler.prototype = {
     return this.source.merge();
   },
 
+  lookupPropertyFunctionVarDeclaration: function() {
+    return `
+      lookupProperty = container.lookupProperty || function(parent, propertyName) {
+        if (Object.prototype.hasOwnProperty.call(parent, propertyName)) {
+          return parent[propertyName];
+        }
+        return undefined
+    }
+    `.trim();
+  },
+
   // [blockValue]
   //
   // On stack, before: hash, inverse, program, value
@@ -1241,6 +1246,9 @@ JavaScriptCompiler.prototype = {
   }
 })();
 
+/**
+ * @deprecated May be removed in the next major version
+ */
 JavaScriptCompiler.isValidJavaScriptVariableName = function(name) {
   return (
     !JavaScriptCompiler.RESERVED_WORDS[name] &&
diff --git a/lib/handlebars/helpers/lookup.js b/lib/handlebars/helpers/lookup.js
index 66de538b6..5620aba32 100644
--- a/lib/handlebars/helpers/lookup.js
+++ b/lib/handlebars/helpers/lookup.js
@@ -1,16 +1,9 @@
-export const dangerousPropertyRegex = /^(constructor|__defineGetter__|__defineSetter__|__lookupGetter__|__proto__)$/;
-
 export default function(instance) {
-  instance.registerHelper('lookup', function(obj, field) {
+  instance.registerHelper('lookup', function(obj, field, options) {
     if (!obj) {
+      // Note for 5.0: Change to "obj == null" in 5.0
       return obj;
     }
-    if (
-      dangerousPropertyRegex.test(String(field)) &&
-      !Object.prototype.propertyIsEnumerable.call(obj, field)
-    ) {
-      return undefined;
-    }
-    return obj[field];
+    return options.lookupProperty(obj, field);
   });
 }
diff --git a/lib/handlebars/internal/createNewLookupObject.js b/lib/handlebars/internal/createNewLookupObject.js
new file mode 100644
index 000000000..256f1eca1
--- /dev/null
+++ b/lib/handlebars/internal/createNewLookupObject.js
@@ -0,0 +1,11 @@
+import { extend } from '../utils';
+
+/**
+ * Create a new object with "null"-prototype to avoid truthy results on prototype properties.
+ * The resulting object can be used with "object[property]" to check if a property exists
+ * @param {...object} sources a varargs parameter of source objects that will be merged
+ * @returns {object}
+ */
+export function createNewLookupObject(...sources) {
+  return extend(Object.create(null), ...sources);
+}
diff --git a/lib/handlebars/internal/wrapHelper.js b/lib/handlebars/internal/wrapHelper.js
new file mode 100644
index 000000000..0010eb8c2
--- /dev/null
+++ b/lib/handlebars/internal/wrapHelper.js
@@ -0,0 +1,8 @@
+export function wrapHelper(helper, transformOptionsFn) {
+  let wrapper = function(/* dynamic arguments */) {
+    const options = arguments[arguments.length - 1];
+    arguments[arguments.length - 1] = transformOptionsFn(options);
+    return helper.apply(this, arguments);
+  };
+  return wrapper;
+}
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 4d67895af..7d63e87b8 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -7,6 +7,8 @@ import {
   REVISION_CHANGES
 } from './base';
 import { moveHelperToHooks } from './helpers';
+import { wrapHelper } from './internal/wrapHelper';
+import { createNewLookupObject } from './internal/createNewLookupObject';
 
 export function checkRevision(compilerInfo) {
   const compilerRevision = (compilerInfo && compilerInfo[0]) || 1,
@@ -69,13 +71,17 @@ export function template(templateSpec, env) {
     }
     partial = env.VM.resolvePartial.call(this, partial, context, options);
 
-    let optionsWithHooks = Utils.extend({}, options, { hooks: this.hooks });
+    let extendedOptions = Utils.extend({}, options, {
+      hooks: this.hooks,
+      allowedProtoMethods: this.allowedProtoMethods,
+      allowedProtoProperties: this.allowedProtoProperties
+    });
 
     let result = env.VM.invokePartial.call(
       this,
       partial,
       context,
-      optionsWithHooks
+      extendedOptions
     );
 
     if (result == null && env.compile) {
@@ -84,7 +90,7 @@ export function template(templateSpec, env) {
         templateSpec.compilerOptions,
         env
       );
-      result = options.partials[options.name](context, optionsWithHooks);
+      result = options.partials[options.name](context, extendedOptions);
     }
     if (result != null) {
       if (options.indent) {
@@ -118,10 +124,26 @@ export function template(templateSpec, env) {
       }
       return obj[name];
     },
+    lookupProperty: function(parent, propertyName) {
+      let result = parent[propertyName];
+      if (Object.prototype.hasOwnProperty.call(parent, propertyName)) {
+        return result;
+      }
+      const whitelist =
+        typeof result === 'function'
+          ? container.allowedProtoMethods
+          : container.allowedProtoProperties;
+
+      if (whitelist[propertyName] === true) {
+        return result;
+      }
+      return undefined;
+    },
     lookup: function(depths, name) {
       const len = depths.length;
       for (let i = 0; i < len; i++) {
-        if (depths[i] && depths[i][name] != null) {
+        let result = depths[i] && container.lookupProperty(depths[i], name);
+        if (result != null) {
           return depths[i][name];
         }
       }
@@ -229,7 +251,9 @@ export function template(templateSpec, env) {
 
   ret._setup = function(options) {
     if (!options.partial) {
-      container.helpers = Utils.extend({}, env.helpers, options.helpers);
+      let mergedHelpers = Utils.extend({}, env.helpers, options.helpers);
+      wrapHelpersToPassLookupProperty(mergedHelpers, container);
+      container.helpers = mergedHelpers;
 
       if (templateSpec.usePartial) {
         // Use mergeIfNeeded here to prevent compiling global partials multiple times
@@ -247,6 +271,12 @@ export function template(templateSpec, env) {
       }
 
       container.hooks = {};
+      container.allowedProtoProperties = createNewLookupObject(
+        options.allowedProtoProperties
+      );
+      container.allowedProtoMethods = createNewLookupObject(
+        options.allowedProtoMethods
+      );
 
       let keepHelperInHelpers =
         options.allowCallsToHelperMissing ||
@@ -254,6 +284,8 @@ export function template(templateSpec, env) {
       moveHelperToHooks(container, 'helperMissing', keepHelperInHelpers);
       moveHelperToHooks(container, 'blockHelperMissing', keepHelperInHelpers);
     } else {
+      container.allowedProtoProperties = options.allowedProtoProperties;
+      container.allowedProtoMethods = options.allowedProtoMethods;
       container.helpers = options.helpers;
       container.partials = options.partials;
       container.decorators = options.decorators;
@@ -405,3 +437,17 @@ function executeDecorators(fn, prog, container, depths, data, blockParams) {
   }
   return prog;
 }
+
+function wrapHelpersToPassLookupProperty(mergedHelpers, container) {
+  Object.keys(mergedHelpers).forEach(helperName => {
+    let helper = mergedHelpers[helperName];
+    mergedHelpers[helperName] = passLookupPropertyOption(helper, container);
+  });
+}
+
+function passLookupPropertyOption(helper, container) {
+  const lookupProperty = container.lookupProperty;
+  return wrapHelper(helper, options => {
+    return Utils.extend({ lookupProperty }, options);
+  });
+}
diff --git a/spec/blocks.js b/spec/blocks.js
index 1ef2d1be2..ad534aaba 100644
--- a/spec/blocks.js
+++ b/spec/blocks.js
@@ -275,6 +275,7 @@ describe('blocks', function() {
         'Goodbye cruel OMG!'
       );
     });
+
     it('block with deep recursive pathed lookup', function() {
       var string =
         '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
diff --git a/spec/helpers.js b/spec/helpers.js
index 9d4bc202e..60140a096 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -1328,4 +1328,15 @@ describe('helpers', function() {
       );
     });
   });
+
+  describe('the lookupProperty-option', function() {
+    it('should be passed to custom helpers', function() {
+      expectTemplate('{{testHelper}}')
+        .withHelper('testHelper', function testHelper(options) {
+          return options.lookupProperty(this, 'testProperty');
+        })
+        .withInput({ testProperty: 'abc' })
+        .toCompileTo('abc');
+    });
+  });
 });
diff --git a/spec/javascript-compiler.js b/spec/javascript-compiler.js
index 21b8e2a0a..e97cbb083 100644
--- a/spec/javascript-compiler.js
+++ b/spec/javascript-compiler.js
@@ -81,4 +81,29 @@ describe('javascript-compiler api', function() {
       shouldCompileTo('{{foo}}', { foo: 'food' }, 'food_foo');
     });
   });
+
+  describe('#isValidJavaScriptVariableName', function() {
+    // It is there and accessible and could be used by someone. That's why we don't remove it
+    // it 4.x. But if we keep it, we add a test
+    // This test should not encourage you to use the function. It is not needed any more
+    // and might be removed in 5.0
+    ['test', 'abc123', 'abc_123'].forEach(function(validVariableName) {
+      it("should return true for '" + validVariableName + "'", function() {
+        expect(
+          handlebarsEnv.JavaScriptCompiler.isValidJavaScriptVariableName(
+            validVariableName
+          )
+        ).to.be.true();
+      });
+    });
+    [('123test', 'abc()', 'abc.cde')].forEach(function(invalidVariableName) {
+      it("should return true for '" + invalidVariableName + "'", function() {
+        expect(
+          handlebarsEnv.JavaScriptCompiler.isValidJavaScriptVariableName(
+            invalidVariableName
+          )
+        ).to.be.false();
+      });
+    });
+  });
 });
diff --git a/spec/regressions.js b/spec/regressions.js
index 821c48dc2..3a84dd7da 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -390,7 +390,7 @@ describe('Regressions', function() {
     it('should compile and execute templates', function() {
       var newHandlebarsInstance = Handlebars.create();
 
-      registerTemplate(newHandlebarsInstance);
+      registerTemplate(newHandlebarsInstance, compiledTemplateVersion7());
       newHandlebarsInstance.registerHelper('loud', function(value) {
         return value.toUpperCase();
       });
@@ -405,7 +405,7 @@ describe('Regressions', function() {
 
       shouldThrow(
         function() {
-          registerTemplate(newHandlebarsInstance);
+          registerTemplate(newHandlebarsInstance, compiledTemplateVersion7());
           newHandlebarsInstance.templates['test.hbs']({});
         },
         Handlebars.Exception,
@@ -413,11 +413,31 @@ describe('Regressions', function() {
       );
     });
 
-    // This is a only slightly modified precompiled templated from compiled with 4.2.1
-    function registerTemplate(Handlebars) {
+    it('should pass "options.lookupProperty" to "lookup"-helper, even with old templates', function() {
+      var newHandlebarsInstance = Handlebars.create();
+      registerTemplate(
+        newHandlebarsInstance,
+        compiledTemplateVersion7_usingLookupHelper()
+      );
+
+      newHandlebarsInstance.templates['test.hbs']({});
+
+      expect(
+        newHandlebarsInstance.templates['test.hbs']({
+          property: 'a',
+          test: { a: 'b' }
+        })
+      ).to.equal('b');
+    });
+
+    function registerTemplate(Handlebars, compileTemplate) {
       var template = Handlebars.template,
         templates = (Handlebars.templates = Handlebars.templates || {});
-      templates['test.hbs'] = template({
+      templates['test.hbs'] = template(compileTemplate);
+    }
+
+    function compiledTemplateVersion7() {
+      return {
         compiler: [7, '>= 4.0.0'],
         main: function(container, depth0, helpers, partials, data) {
           return (
@@ -435,7 +455,29 @@ describe('Regressions', function() {
           );
         },
         useData: true
-      });
+      };
+    }
+
+    function compiledTemplateVersion7_usingLookupHelper() {
+      // This is the compiled version of "{{lookup test property}}"
+      return {
+        compiler: [7, '>= 4.0.0'],
+        main: function(container, depth0, helpers, partials, data) {
+          return container.escapeExpression(
+            helpers.lookup.call(
+              depth0 != null ? depth0 : container.nullContext || {},
+              depth0 != null ? depth0.test : depth0,
+              depth0 != null ? depth0.property : depth0,
+              {
+                name: 'lookup',
+                hash: {},
+                data: data
+              }
+            )
+          );
+        },
+        useData: true
+      };
     }
   });
 
diff --git a/spec/security.js b/spec/security.js
index ed0189281..7bf9d89a0 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -19,7 +19,7 @@ describe('security issues', function() {
         .toCompileTo('');
     });
 
-    it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+    it('should allow the "constructor" property to be accessed if it is an "ownProperty"', function() {
       shouldCompileTo(
         '{{constructor.name}}',
         {
@@ -40,7 +40,7 @@ describe('security issues', function() {
       );
     });
 
-    it('should allow the "constructor" property to be accessed if it is enumerable', function() {
+    it('should allow the "constructor" property to be accessed if it is an "own property"', function() {
       shouldCompileTo(
         '{{lookup (lookup this "constructor") "name"}}',
         {
@@ -51,27 +51,6 @@ describe('security issues', function() {
         'here we go'
       );
     });
-
-    it('should allow prototype properties that are not constructors', function() {
-      function TestClass() {}
-
-      Object.defineProperty(TestClass.prototype, 'abc', {
-        get: function() {
-          return 'xyz';
-        }
-      });
-
-      shouldCompileTo(
-        '{{#with this as |obj|}}{{obj.abc}}{{/with}}',
-        new TestClass(),
-        'xyz'
-      );
-      shouldCompileTo(
-        '{{#with this as |obj|}}{{lookup obj "abc"}}{{/with}}',
-        new TestClass(),
-        'xyz'
-      );
-    });
   });
 
   describe('GH-1558: Prevent explicit call of helperMissing-helpers', function() {
@@ -171,38 +150,183 @@ describe('security issues', function() {
   });
 
   describe('GH-1595', function() {
-    it('properties, that are required to be enumerable', function() {
+    it('properties, that are required to be own properties', function() {
       expectTemplate('{{constructor}}')
         .withInput({})
         .toCompileTo('');
+
       expectTemplate('{{__defineGetter__}}')
         .withInput({})
         .toCompileTo('');
+
       expectTemplate('{{__defineSetter__}}')
         .withInput({})
         .toCompileTo('');
+
       expectTemplate('{{__lookupGetter__}}')
         .withInput({})
         .toCompileTo('');
+
       expectTemplate('{{__proto__}}')
         .withInput({})
         .toCompileTo('');
 
-      expectTemplate('{{lookup "constructor"}}')
+      expectTemplate('{{lookup this "constructor"}}')
         .withInput({})
         .toCompileTo('');
-      expectTemplate('{{lookup "__defineGetter__"}}')
+
+      expectTemplate('{{lookup this "__defineGetter__"}}')
         .withInput({})
         .toCompileTo('');
-      expectTemplate('{{lookup "__defineSetter__"}}')
+
+      expectTemplate('{{lookup this "__defineSetter__"}}')
         .withInput({})
         .toCompileTo('');
-      expectTemplate('{{lookup "__lookupGetter__"}}')
+
+      expectTemplate('{{lookup this "__lookupGetter__"}}')
         .withInput({})
         .toCompileTo('');
-      expectTemplate('{{lookup "__proto__"}}')
+
+      expectTemplate('{{lookup this "__proto__"}}')
         .withInput({})
         .toCompileTo('');
     });
+
+    describe('GH-1631: disallow access to prototype functions', function() {
+      function TestClass() {}
+
+      TestClass.prototype.aProperty = 'propertyValue';
+      TestClass.prototype.aMethod = function() {
+        return 'returnValue';
+      };
+
+      describe('control access to prototype methods via "allowedProtoMethods"', function() {
+        it('should be prohibited by default', function() {
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .toCompileTo('');
+        });
+
+        it('can be allowed', function() {
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withRuntimeOptions({
+              allowedProtoMethods: {
+                aMethod: true
+              }
+            })
+            .toCompileTo('returnValue');
+        });
+
+        it('should be prohibited by default (in "compat" mode)', function() {
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withCompileOptions({ compat: true })
+            .toCompileTo('');
+        });
+
+        it('can be allowed (in "compat" mode)', function() {
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withCompileOptions({ compat: true })
+            .withRuntimeOptions({
+              allowedProtoMethods: {
+                aMethod: true
+              }
+            })
+            .toCompileTo('returnValue');
+        });
+
+        it('should cause the recursive lookup by default (in "compat" mode)', function() {
+          expectTemplate('{{#aString}}{{trim}}{{/aString}}')
+            .withInput({ aString: '  abc  ', trim: 'trim' })
+            .withCompileOptions({ compat: true })
+            .toCompileTo('trim');
+        });
+
+        it('should not cause the recursive lookup if allowed through options(in "compat" mode)', function() {
+          expectTemplate('{{#aString}}{{trim}}{{/aString}}')
+            .withInput({ aString: '  abc  ', trim: 'trim' })
+            .withCompileOptions({ compat: true })
+            .withRuntimeOptions({
+              allowedProtoMethods: {
+                trim: true
+              }
+            })
+            .toCompileTo('abc');
+        });
+      });
+
+      describe('control access to prototype non-methods via "allowedProtoProperties"', function() {
+        it('should be prohibited by default', function() {
+          expectTemplate('{{aProperty}}')
+            .withInput(new TestClass())
+            .toCompileTo('');
+        });
+
+        it('can be turned on', function() {
+          expectTemplate('{{aProperty}}')
+            .withInput(new TestClass())
+            .withRuntimeOptions({
+              allowedProtoProperties: {
+                aProperty: true
+              }
+            })
+            .toCompileTo('propertyValue');
+        });
+
+        it('should be prohibited by default (in "compat" mode)', function() {
+          expectTemplate('{{aProperty}}')
+            .withInput(new TestClass())
+            .withCompileOptions({ compat: true })
+            .toCompileTo('');
+        });
+
+        it('can be turned on (in "compat" mode)', function() {
+          expectTemplate('{{aProperty}}')
+            .withInput(new TestClass())
+            .withCompileOptions({ compat: true })
+            .withRuntimeOptions({
+              allowedProtoProperties: {
+                aProperty: true
+              }
+            })
+            .toCompileTo('propertyValue');
+        });
+      });
+
+      describe('compatibility with old runtimes, that do not provide the function "container.lookupProperty"', function() {
+        beforeEach(function simulateRuntimeWithoutLookupProperty() {
+          var oldTemplateMethod = handlebarsEnv.template;
+          sinon.replace(handlebarsEnv, 'template', function(templateSpec) {
+            templateSpec.main = wrapToAdjustContainer(templateSpec.main);
+            return oldTemplateMethod.call(this, templateSpec);
+          });
+        });
+
+        afterEach(function() {
+          sinon.restore();
+        });
+
+        it('should work with simple properties', function() {
+          expectTemplate('{{aProperty}}')
+            .withInput({ aProperty: 'propertyValue' })
+            .toCompileTo('propertyValue');
+        });
+
+        it('should work with Array.prototype.length', function() {
+          expectTemplate('{{anArray.length}}')
+            .withInput({ anArray: ['a', 'b', 'c'] })
+            .toCompileTo('3');
+        });
+      });
+    });
   });
 });
+
+function wrapToAdjustContainer(precompiledTemplateFunction) {
+  return function templateFunctionWrapper(container /*, more args */) {
+    delete container.lookupProperty;
+    return precompiledTemplateFunction.apply(this, arguments);
+  };
+}
diff --git a/types/index.d.ts b/types/index.d.ts
index bb0656a51..606741f5a 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -30,6 +30,8 @@ declare namespace Handlebars {
       data?: any;
       blockParams?: any[];
       allowCallsToHelperMissing?: boolean;
+      allowedProtoProperties?: { [name: string]: boolean }
+      allowedProtoMethods?: { [name: string]: boolean }
   }
 
   export interface HelperOptions {
diff --git a/types/test.ts b/types/test.ts
index fa9832683..b081ae4fb 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -240,3 +240,13 @@ function testExceptionWithNodeTypings() {
   let fileName: string = exception.fileName;
   let stack: string | undefined = exception.stack;
 }
+
+function testProtoPropertyControlOptions() {
+  Handlebars.compile('test')(
+    {},
+    {
+      allowedProtoMethods: { allowedMethod: true, forbiddenMethod: false },
+      allowedProtoProperties: { allowedProperty: true, forbiddenProperty: false }
+    }
+  );
+}

From d337f40d0efd59e163f871ed7a73e900322473a6 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 1 Jan 2020 21:21:24 +0100
Subject: [PATCH 140/191] test: show diff when test:bin fails

---
 package-lock.json | 17 +++++++++++++++++
 package.json      |  3 ++-
 tasks/test-bin.js | 13 ++++++++-----
 3 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 5d119122f..2223f0b86 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1394,6 +1394,23 @@
         "type-detect": "^4.0.5"
       }
     },
+    "chai-diff": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/chai-diff/-/chai-diff-1.0.1.tgz",
+      "integrity": "sha1-bGaJRwDYDNkDUKtORANiXU9TocE=",
+      "dev": true,
+      "requires": {
+        "diff": "^2.2.1"
+      },
+      "dependencies": {
+        "diff": {
+          "version": "2.2.3",
+          "resolved": "https://registry.npmjs.org/diff/-/diff-2.2.3.tgz",
+          "integrity": "sha1-YOr9DSjukG5Oj/ClLBIpUhAzv5k=",
+          "dev": true
+        }
+      }
+    },
     "chalk": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
diff --git a/package.json b/package.json
index 19f096a5a..c164ea9c2 100644
--- a/package.json
+++ b/package.json
@@ -35,6 +35,7 @@
     "babel-runtime": "^5.1.10",
     "benchmark": "~1.0",
     "chai": "^4.2.0",
+    "chai-diff": "^1.0.1",
     "concurrently": "^5.0.0",
     "dirty-chai": "^2.0.1",
     "dtslint": "^0.5.5",
@@ -84,7 +85,7 @@
   "scripts": {
     "format": "prettier --write '**/*.js' && eslint --fix .",
     "check-format": "prettier --check '**/*.js'",
-    "lint": "eslint --max-warnings 0 . ",
+    "lint": "eslint --max-warnings 0 .",
     "dtslint": "dtslint types",
     "test": "grunt",
     "extensive-tests-and-publish-to-aws": "npx mocha tasks/task-tests/ && grunt --stack extensive-tests-and-publish-to-aws",
diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index 8873c9f01..077e6d4f3 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -1,7 +1,10 @@
-const childProcess = require('child_process'),
-  fs = require('fs'),
-  os = require('os'),
-  expect = require('chai').expect;
+const childProcess = require('child_process');
+const fs = require('fs');
+const os = require('os');
+
+const chai = require('chai');
+chai.use(require('chai-diff'));
+const expect = chai.expect;
 
 module.exports = function(grunt) {
   grunt.registerTask('test:bin', function() {
@@ -18,7 +21,7 @@ module.exports = function(grunt) {
     const normalizedOutput = normalizeCrlf(stdout);
     const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
 
-    expect(normalizedOutput).to.equal(normalizedExpectedOutput);
+    expect(normalizedOutput).not.to.be.differentFrom(normalizedExpectedOutput);
   });
 };
 

From 187d611e8c2a7dc849f62f283ac70714fa637e84 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 2 Jan 2020 15:47:09 +0100
Subject: [PATCH 141/191] test: add path to nodeJs when running test:bin

- this allows the test to be run in a debugger
  without the complete PATH
---
 tasks/test-bin.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index 077e6d4f3..3a9c43095 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -1,6 +1,7 @@
 const childProcess = require('child_process');
 const fs = require('fs');
 const os = require('os');
+const path = require('path');
 
 const chai = require('chai');
 chai.use(require('chai-diff'));
@@ -37,7 +38,13 @@ function executeBinHandlebars(...args) {
 }
 
 function execFilesSyncUtf8(command, args) {
-  return childProcess.execFileSync(command, args, { encoding: 'utf-8' });
+  const env = process.env;
+  env.PATH = addPathToNodeJs(env.PATH);
+  return childProcess.execFileSync(command, args, { encoding: 'utf-8', env });
+}
+
+function addPathToNodeJs(pathEnvironment) {
+  return path.dirname(process.argv0) + path.delimiter + pathEnvironment;
 }
 
 function normalizeCrlf(string) {

From d7f0dcf2bb91a1d27961941995d75c9800efc7ba Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 2 Jan 2020 15:49:41 +0100
Subject: [PATCH 142/191] refactor: fix typo in private test method

---
 spec/env/common.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/spec/env/common.js b/spec/env/common.js
index 64451fee4..0ecebcf45 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -167,7 +167,7 @@ HandlebarsTestBench.prototype.withMessage = function(message) {
 };
 
 HandlebarsTestBench.prototype.toCompileTo = function(expectedOutputAsString) {
-  expect(this._compileAndExeute()).to.equal(expectedOutputAsString);
+  expect(this._compileAndExecute()).to.equal(expectedOutputAsString);
 };
 
 // see chai "to.throw" (https://www.chaijs.com/api/bdd/#method_throw)
@@ -178,11 +178,11 @@ HandlebarsTestBench.prototype.toThrow = function(
 ) {
   var self = this;
   expect(function() {
-    self._compileAndExeute();
+    self._compileAndExecute();
   }).to.throw(errorLike, errMsgMatcher, msg);
 };
 
-HandlebarsTestBench.prototype._compileAndExeute = function() {
+HandlebarsTestBench.prototype._compileAndExecute = function() {
   var compile =
     Object.keys(this.partials).length > 0
       ? CompilerContext.compileWithPartial

From 770d746e600eb1939501ab91d4bc81ed6b4cde94 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 8 Jan 2020 23:44:46 +0100
Subject: [PATCH 143/191] Update release notes

---
 release-notes.md | 218 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 157 insertions(+), 61 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 199c39bf5..d75b32024 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,173 +2,223 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.3...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.6.0...master)
+
+## v4.6.0 - January 8th, 2020
+
+Features:
+
+- feat: access control to prototype properties via whitelist (#1633)- d03b6ec
+
+Bugfixes:
+
+- fix(runtime.js): partials compile not caching (#1600) - 23d58e7
+
+Chores, docs:
+
+- various refactorings and improvements to tests - d7f0dcf, 187d611, d337f40
+- modernize the build-setup
+  - use prettier to format and eslint to verify - c40d9f3, 8901c28, e97685e, 1f61f21
+  - use nyc instead of istanbul to collect coverage - 164b7ff, 1ebce2b
+  - update build code to use modern javascript and make it cleaner - 14b621c, 1ec1737, 3a5b65e, dde108e, 04b1984, 587e7a3
+  - restructur build commands - e913dc5,
+- eslint rule changes - ac4655e, dc54952
+- Update (C) year in the LICENSE file - d1fb07b
+- chore: try to fix saucelabs credentials (#1627) -
+- Update readme.md with updated links (#1620) - edcc84f
+
+BREAKING CHANGES:
+
+- access to prototype properties is forbidden completely by default,
+  specific properties or methods can be allow via runtime-options.
+  See #1633 for details.
+  If you are using Handlebars as documented, you should not be accessing prototype
+  properties from your template anyway, so the changes should not be a problem
+  for you. Only the use of undocumented features can break your build.
+
+  That is why we only bump the minor version despite mentioning breaking changes
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.5.3...v4.6.0)
 
 ## v4.5.3 - November 18th, 2019
+
 Bugfixes:
 
 - fix: add "no-prototype-builtins" eslint-rule and fix all occurences - f7f05d7
 - fix: add more properties required to be enumerable - 1988878
 
 Chores / Build:
+
 - fix: use !== 0 instead of != 0 - c02b05f
-- add chai and dirty-chai and sinon, for cleaner test-assertions and spies, 
-  deprecate old assertion-methods  - 93e284e, 886ba86, 0817dad, 93516a0
+- add chai and dirty-chai and sinon, for cleaner test-assertions and spies,
+  deprecate old assertion-methods - 93e284e, 886ba86, 0817dad, 93516a0
 
 Security:
 
-- The properties `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__` 
+- The properties `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__`
   have been added to the list of "properties that must be enumerable".
-  If a property by that name is found and not enumerable on its parent, 
-  it will silently evaluate to `undefined`. This is done in both the compiled template and the "lookup"-helper. 
+  If a property by that name is found and not enumerable on its parent,
+  it will silently evaluate to `undefined`. This is done in both the compiled template and the "lookup"-helper.
   This will prevent new Remote-Code-Execution exploits that have been
   published recently.
 
-Compatibility notes: 
+Compatibility notes:
 
 - Due to the security-fixes. The semantics of the templates using
-  `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__` in the respect that those expression now return 
+  `__proto__`, `__defineGetter__`, `__defineSetter__` and `__lookupGetter__` in the respect that those expression now return
   `undefined` rather than their actual value from the proto.
-- The semantics have not changed in cases where the properties are  enumerable, as in:
+- The semantics have not changed in cases where the properties are enumerable, as in:
 
 ```js
 {
-  __proto__: 'some string'
+  __proto__: 'some string';
 }
 ```
 
-- The change may be breaking in that respect, but we still only 
+- The change may be breaking in that respect, but we still only
   increase the patch-version, because the incompatible use-cases
   are not intended, undocumented and far less important than fixing
   Remote-Code-Execution exploits on existing systems.
 
-
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.5.2...v4.5.3)
 
 ## v4.5.2 - November 13th, 2019
+
 # Bugfixes
 
 - fix: use String(field) in lookup when checking for "constructor" - d541378
 - test: add fluent API for testing Handlebars - c2ac79c
 
 Compatibility notes:
+
 - no incompatibility are to be expected
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.5.1...v4.5.2)
 
 ## v4.5.1 - October 29th, 2019
+
 Bugfixs
 
 - fix: move "eslint-plugin-compat" to devDependencies - 5e9d17f (#1589)
 
 Compatibility notes:
-- No compatibility issues are to be expected
 
+- No compatibility issues are to be expected
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.5.0...v4.5.1)
 
 ## v4.5.0 - October 28th, 2019
+
 Features / Improvements
+
 - Add method Handlebars.parseWithoutProcessing (#1584) - 62ed3c2
 - add guard to if & unless helpers (#1549)
 - show source location for the strict lookup exceptions - feb60f8
 
 Bugfixes:
+
 - Use objects for hash value tracking - 7fcf9d2
 
 Chore:
+
 - Resolve deprecation warning message from eslint while running eslint (#1586) - 7052e88
 - chore: add eslint-plugin-compat and eslint-plugin-es5 - 088e618
 
 Compatibility notes:
+
 - No compatibility issues are to be expected
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.5...v4.5.0)
 
 ## v4.4.5 - October 20th, 2019
-Bugfixes: 
-
-- Contents of raw-blocks must be matched with non-eager regex-matching - 8d5530e, #1579
 
+Bugfixes:
 
+- Contents of raw-blocks must be matched with non-eager regex-matching - 8d5530e, #1579
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.4...v4.4.5)
 
 ## v4.4.4 - October 20th, 2019
+
 Bugfixes:
+
 - fix: prevent zero length tokens in raw-blocks (#1577, #1578) - f1752fe
 
-Chore: 
+Chore:
+
 - chore: link to s3 bucket with https, add "npm ci" to build instructions - 0b593bf
 
 Compatibility notes:
+
 - no compatibility issues are expected
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.3...v4.4.4)
 
 ## v4.4.3 - October 8th, 2019
+
 Bugfixes
 
 Typings:
-- add missing type fields to AST typings and add tests for them - 0440af2
-
 
+- add missing type fields to AST typings and add tests for them - 0440af2
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.2...v4.4.3)
 
 ## v4.4.2 - October 2nd, 2019
-- chore: fix grunt-saucelabs dependency - b7eada0
 
+- chore: fix grunt-saucelabs dependency - b7eada0
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.1...v4.4.2)
 
 ## v4.4.1 - October 2nd, 2019
-- [#1562](https://github.com/wycats/handlebars.js/issues/1562) - Error message for syntax error missing location in 4.2.1+
-
 
+- [#1562](https://github.com/wycats/handlebars.js/issues/1562) - Error message for syntax error missing location in 4.2.1+
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.4.0...v4.4.1)
 
 ## v4.4.0 - September 29th, 2019
-- Added support for iterable objects in {{#each}} helper (#1557) - cf7545e
 
+- Added support for iterable objects in {{#each}} helper (#1557) - cf7545e
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.3.4...v4.4.0)
 
 ## v4.3.4 - September 28th, 2019
+
 - fix: harden "propertyIsEnumerable"-check - ff4d827
 
 Compatibility notes:
+
 - No incompatibilities are known.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.3.3...v4.3.4)
 
 ## v4.3.3 - September 27th, 2019
- - fix test case for browsers that do not support __defineGetter__ - 8742bde
 
+- fix test case for browsers that do not support **defineGetter** - 8742bde
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.3.2...v4.3.3)
 
 ## v4.3.2 - September 26th, 2019
+
 - Use Object.prototype.propertyIsEnumerable to check for constructors - 213c0bb, #1563
 
 Compatibility notes:
+
 - There are no breaking changes
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.3.1...v4.3.2)
 
 ## v4.3.1 - September 25th, 2019
+
 Fixes:
 
 - do not break on precompiled templates from Handlebars >=4.0.0 <4.3.0 - 1266838, #1561
 - Ensure allowCallsToHelperMissing runtime option is optional in typings - 93444c5, 64ecb9e, #1560
 
-
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.3.0...v4.3.1)
 
 ## v4.3.0 - September 24th, 2019
+
 Fixes:
 
 - Security: Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
@@ -181,18 +231,20 @@ Features:
 Breaking changes:
 
 Compatibility notes:
+
 - Compiler revision increased - 06b7224
+
   - This means that template compiled with versions prior to 4.3.0 will not work with runtimes >= 4.3.0
     The increase was done because the "helperMissing" and "blockHelperMissing" are now moved from the helpers
     to the internal "container.hooks" object, so old templates will not be able to call them anymore. We suggest
     that you always recompile your templates with the latest compiler in your build pipelines.
 
 - Disallow calling "helperMissing" and "blockHelperMissing" directly - 2078c72
-  - Calling "helperMissing" and "blockHelperMissing" directly from a template (like in `{{blockHelperMissing}}` was 
-    never intended and was part of the exploits that have been revealed early in 2019 
-    (see https://github.com/wycats/handlebars.js/issues/1495). *It is also part of a new exploit that 
-    is not captured by the earlier fix.* In order to harden Handlebars against such exploits, calling thos helpers 
-    is now not possible anymore. *Overriding* those helpers is still possible.
+  - Calling "helperMissing" and "blockHelperMissing" directly from a template (like in `{{blockHelperMissing}}` was
+    never intended and was part of the exploits that have been revealed early in 2019
+    (see https://github.com/wycats/handlebars.js/issues/1495). _It is also part of a new exploit that
+    is not captured by the earlier fix._ In order to harden Handlebars against such exploits, calling thos helpers
+    is now not possible anymore. _Overriding_ those helpers is still possible.
   - If you really need this behavior, you can set the runtime option `allowCallsToHelperMissing` to `true` and the
     calls will again be possible
 
@@ -200,86 +252,97 @@ Both bullet points imly that Handlebars is not 100% percent compatible to 4.2.0,
 
 We consider it more important to resolve a major security issue than to maintain 100% compatibility.
 
-    
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.2.1...v4.3.0)
 
 ## v4.2.1 - September 20th, 2019
-Bugfixes: 
+
+Bugfixes:
 
 - The "browser" property in the package.json has been updated to use the common-js builds instead of the minified UMD - c55a7be, #1553
 
 Compatibility notes:
+
 - No compatibility issues should arise
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.2.0...v4.2.1)
 
 ## v4.2.0 - September 3rd, 2019
+
 Chore/Test:
+
 - Use custom `grunt-saucelab` with current sauce-connect proxy - f119497
 - Add framework for various integration tests - f9cce4d
 - Add integration test for webpack - a57b682
 
-
 Bugfixes:
+
 - [#1544](https://github.com/wycats/handlebars.js/issues/1544) - Typescript types: `knownHelpers` doesnt allow for custom helpers ([@NickCis](https://api.github.com/users/NickCis))
 - [#1534](https://github.com/wycats/handlebars.js/pull/1534) - Add typings for "Handlebars.VM.resolvePartial ([@AndrewLeedham](https://api.github.com/users/AndrewLeedham))
 
 Features:
+
 - [#1540](https://github.com/wycats/handlebars.js/pull/1540) - added "browser"-property to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
 
 Compatibility notes:
-- The new "browser"-property should not break anything, but you can never be sure. The integration test for webpack 
-  shows that it works, but if it doesn't please open an issue.
-
 
+- The new "browser"-property should not break anything, but you can never be sure. The integration test for webpack
+  shows that it works, but if it doesn't please open an issue.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2-0...v4.2.0)
 
 ## v4.1.2-0 - August 25th, 2019
+
 [#1540](https://github.com/wycats/handlebars.js/pull/1540) - added browser to package.json, resolves #1102 ([@ouijan](https://api.github.com/users/ouijan))
 
 Compatibility notes:
+
 - We are not sure if imports via webpack are still working, which is why this release is a pre-release
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.1.2-0)
 
 ## v4.1.2 - April 13th, 2019
+
 Chore/Test:
+
 - [#1515](https://github.com/wycats/handlebars.js/pull/1515) - Port over linting and test for typings ([@zimmi88](https://api.github.com/users/zimmi88))
 - chore: add missing typescript dependency, add package-lock.json - 594f1e3
 - test: remove safari from saucelabs - 871accc
 
-Bugfixes: 
+Bugfixes:
+
 - fix: prevent RCE through the "lookup"-helper - cd38583
 
 Compatibility notes:
 
-Access to the constructor of a class thought `{{lookup obj "constructor" }}` is now prohibited. This closes 
+Access to the constructor of a class thought `{{lookup obj "constructor" }}` is now prohibited. This closes
 a leak that only half closed in versions 4.0.13 and 4.1.0, but it is a slight incompatibility.
 
 This kind of access is not the intended use of Handlebars and leads to the vulnerability described
-in #1495. We will **not** increase the major version, because such use is not intended or documented, 
+in #1495. We will **not** increase the major version, because such use is not intended or documented,
 and because of the potential impact of the issue (we fear that most people won't use a new major version
-and the issue may not be resolved on many systems). 
+and the issue may not be resolved on many systems).
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.1...v4.1.2)
 
 ## v4.1.1 - March 16th, 2019
+
 Bugfixes:
+
 - fix: add "runtime.d.ts" to allow "require('handlebars/runtime')" in TypeScript - 5cedd62
 
 Refactorings:
+
 - replace "async" with "neo-async" - 048f2ce
 - use "substring"-function instead of "substr" - 445ae12
 
 Compatibility notes:
-- This is a bugfix release. There are no breaking change and no new features.
 
+- This is a bugfix release. There are no breaking change and no new features.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.0...v4.1.1)
 
 ## v4.1.0 - February 7th, 2019
+
 New Features
 
 - import TypeScript typings - 27ac1ee
@@ -312,11 +375,10 @@ document.getElementById('output').innerHTML = template(new SomeClass());
 
 This kind of access is not the intended use of Handlebars and leads to the vulnerability described in #1495. We will **not** increase the major version, because such use is not intended or documented, and because of the potential impact of the issue (we fear that most people won't use a new major version and the issue may not be resolved on many systems).
 
-
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.12...v4.1.0)
 
 ## v4.0.12 - September 4th, 2018
+
 New features:
 
 - none
@@ -341,24 +403,26 @@ Removed obsolete code:
 - Update jsfiddle to 4.0.11 - 8947dd0
 
 Compatibility notes:
+
 - No compatibility issues are to be expected
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.11...v4.0.12)
 
 ## v4.0.11 - October 17th, 2017
+
 - [#1391](https://github.com/wycats/handlebars.js/issues/1391) - `uglify-js` is unconditionally imported, but only listed as optional dependency ([@Turbo87](https://github.com/Turbo87))
 - [#1233](https://github.com/wycats/handlebars.js/issues/1233) - Unable to build under windows - error at test:bin task ([@blikblum](https://github.com/blikblum))
 - Update (C) year in the LICENSE file - 21386b6
 
 Compatibility notes:
+
 - This is a bugfix release. There are no breaking change and no new features.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.10...v4.0.11)
 
 ## v4.0.10 - May 21st, 2017
-- Fix regression in 4.0.9: Replace "Object.assign" (not support in IE) by "util/extend" - 0e953d1
-
 
+- Fix regression in 4.0.9: Replace "Object.assign" (not support in IE) by "util/extend" - 0e953d1
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.9...v4.0.10)
 
@@ -367,30 +431,34 @@ Compatibility notes:
 - [#1327](https://github.com/wycats/handlebars.js/issues/1327) Handlebars.compile() does not modify "options" anymore
 - pending [#1331](https://github.com/wycats/handlebars.js/issues/1331) Attempts to build Handlebars in a Windows environment
   - Fix build in windows - cc554a5
-  - Ensure LF line-edings in handlebars-template fixtures (*.hbs) - ed879a6
+  - Ensure LF line-edings in handlebars-template fixtures (\*.hbs) - ed879a6
   - Run integration test with `node handlebars -a ...` on Windows - 2e21e2b
-  - Ensure LF line-edings in lexer-files (*.l) - bdfdbea
+  - Ensure LF line-edings in lexer-files (\*.l) - bdfdbea
   - Force LF line-endings for spec/artifacts - b50ef03
   - Use istanbul/lib/cli.js instead of node_modules/.bin/istanbul - 6e6269f
 - TravisCI: Publish valid semver tags independently of the branch - 7378f85
 
 Compatibility notes:
+
 - No compatibility issues are expected.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.8...v4.0.9)
 
 ## v4.0.8 - May 2nd, 2017
+
 - [#1341](https://github.com/wycats/handlebars.js/issues/1341) [#1342](https://github.com/wycats/handlebars.js/issues/1342) Allow partial-blocks to be executed without "options" ([@nknapp](https://github.com/nknapp)) - a00c598
 
 Compatibility notes:
+
 - No breaking changes
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.7...v4.0.8)
 
 ## v4.0.7 - April 29th, 2017
+
 - [#1319](https://github.com/wycats/handlebars.js/issues/1319): Fix context-stack when calling block-helpers on null values ([@nknapp](https://github.com/nknapp)) - c8f4b57
 - [#1315](https://github.com/wycats/handlebars.js/pull/1315) Parser: Change suffix to use ES6 default module export ([@Turbo87](https://github.com/Turbo87))- b617375
-- [#1290](https://github.com/wycats/handlebars.js/pull/1290) [#1252](https://github.com/wycats/handlebars.js/issue/1290) Add more tests for partial-blocks and inline partials ([@nknapp](https://github.com/nknapp)) -  63a8e0c
+- [#1290](https://github.com/wycats/handlebars.js/pull/1290) [#1252](https://github.com/wycats/handlebars.js/issue/1290) Add more tests for partial-blocks and inline partials ([@nknapp](https://github.com/nknapp)) - 63a8e0c
 - [#1252](https://github.com/wycats/handlebars.js/issue/1290) Using @partial-block twice in a template not possible ([@nknapp](https://github.com/nknapp)) - 5a164d0
 - [#1310](https://github.com/wycats/handlebars.js/pull/1310) Avoid duplicate "sourceMappingURL=" lines. ([@joonas-lahtinen](https://github.com/joonas-lahtinen)) - 01b0f65
 - [#1275](https://github.com/wycats/handlebars.js/pull/1275) require('sys') is deprecated, using 'util' instead ([@travnels](https://github.com/travnels)) - 406f2ee
@@ -400,6 +468,7 @@ Compatibility notes:
 [Commits](https://github.com/lawnsea/handlebars.js/compare/v4.0.6...v4.0.7)
 
 ## v4.0.6 - November 12th, 2016
+
 - [#1243](https://github.com/wycats/handlebars.js/pull/1243) - Walk up data frames for nested @partial-block ([@lawnsea](https://github.com/lawnsea))
 - [#1210](https://github.com/wycats/handlebars.js/pull/1210) - Add a new lightweight package based on handlebars in the README ([@kabirbaidhya](https://github.com/kabirbaidhya))
 - [#1187](https://github.com/wycats/handlebars.js/pull/1187) - Ensure that existing blockParams and depths are respected on dupe programs ([@charleso](https://github.com/charleso))
@@ -407,7 +476,7 @@ Compatibility notes:
 - [#1177](https://github.com/wycats/handlebars.js/pull/1177) - Preserve License info in Closure Compiler ([@gennadiylitvinyuk](https://github.com/gennadiylitvinyuk))
 - [#1171](https://github.com/wycats/handlebars.js/pull/1171) - Contributing doc fix: failing thats -> failing tests ([@paulfalgout](https://github.com/paulfalgout))
 - [#1166](https://github.com/wycats/handlebars.js/pull/1166) - Update license date ([@timwangdev](https://github.com/timwangdev))
--  Update jsfiddle to point to latest - 959ee55 (originally dfc7554 by [@kpdecker](https://github.com/kpdecker))
+- Update jsfiddle to point to latest - 959ee55 (originally dfc7554 by [@kpdecker](https://github.com/kpdecker))
 - [#1163](https://github.com/wycats/handlebars.js/pull/1163) - Fix typos on decorators-api.md. ([@adjohnson916](https://github.com/adjohnson916))
 - Drop extra Error params - 8c19874 (originally 63fdb92 by [@kpdecker](https://github.com/kpdecker))
 - [#1153](https://github.com/wycats/handlebars.js/pull/1153) - Add documentation for running tests to contributing.md ([@ryanmurakami](https://github.com/ryanmurakami))
@@ -421,6 +490,7 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.5...v4.0.6)
 
 ## v4.0.5 - November 19th, 2015
+
 - [#1132](https://github.com/wycats/handlebars.js/pull/1132) - Update uglify-js to avoid vulnerability ([@plynchnlm](https://github.com/plynchnlm))
 - [#1129](https://github.com/wycats/handlebars.js/issues/1129) - Minified lib returns an empty string ([@bricss](https://github.com/bricss))
 - Return current handlebars instance from noConflict - 685cf92
@@ -433,12 +503,14 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.4...v4.0.5)
 
 ## v4.0.4 - October 29th, 2015
+
 - [#1121](https://github.com/wycats/handlebars.js/pull/1121) - Include partial name in 'undefined partial' exception message ([@shinypb](https://github.com/shinypb))
 - [#1125](https://github.com/wycats/handlebars.js/pull/1125) - Add promised-handlebars to "in-the-wild"-list ([@nknapp](https://github.com/nknapp))
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.3...v4.0.4)
 
 ## v4.0.3 - September 23rd, 2015
+
 - [#1099](https://github.com/wycats/handlebars.js/issues/1099) - @partial-block is overridden ([@btmorex](https://github.com/btmorex))
 - [#1093](https://github.com/wycats/handlebars.js/issues/1093) - #each skips iteration on undefined values ([@florianpilz](https://github.com/florianpilz))
 - [#1092](https://github.com/wycats/handlebars.js/issues/1092) - Square braces in key name ([@distantnative](https://github.com/distantnative))
@@ -446,22 +518,26 @@ Compatibility notes:
 - [#1090](https://github.com/wycats/handlebars.js/pull/1090) - grammar fixes in 4.0.0 release notes ([@nikolas](https://github.com/nikolas))
 
 Compatibility notes:
+
 - `each` iteration with `undefined` values has been restored to the 3.0 behaviors. Helper calls with undefined context values will now execute against an arbitrary empty object to avoid executing against global object in non-strict mode.
 - `]` can now be included in `[]` wrapped identifiers by escaping with `\`. Any `[]` identifiers that include `\` will now have to properly escape these values.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.2...v4.0.3)
 
 ## v4.0.2 - September 4th, 2015
+
 - [#1089](https://github.com/wycats/handlebars.js/issues/1089) - "Failover content" not working in multiple levels of inline partials ([@michaellopez](https://github.com/michaellopez))
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.1...v4.0.2)
 
 ## v4.0.1 - September 2nd, 2015
+
 - Fix failure when using decorators in partials - 05b82a2
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.0.0...v4.0.1)
 
 ## v4.0.0 - September 1st, 2015
+
 - [#1082](https://github.com/wycats/handlebars.js/pull/1082) - Decorators and Inline Partials ([@kpdecker](https://github.com/kpdecker))
 - [#1076](https://github.com/wycats/handlebars.js/pull/1076) - Implement partial blocks ([@kpdecker](https://github.com/kpdecker))
 - [#1087](https://github.com/wycats/handlebars.js/pull/1087) - Fix #each when last object entry has empty key ([@denniskuczynski](https://github.com/denniskuczynski))
@@ -497,6 +573,7 @@ Compatibility notes:
 - Fix location information for programs - [93faffa](https://github.com/wycats/handlebars.js/commit/93faffa)
 
 Compatibility notes:
+
 - Depthed paths are now conditionally pushed on to the stack. If the helper uses the same context, then a new stack is not created. This leads to behavior that better matches expectations for helpers like `if` that do not seem to alter the context. Any instances of `../` in templates will need to be checked for the correct behavior under 4.0.0. In general templates will either reduce the number of `../` instances or leave them as is. See [#1028](https://github.com/wycats/handlebars.js/issues/1028).
 - The `=` character is now HTML escaped. This closes a potential exploit case when using unquoted attributes, i.e. `<div foo={{bar}}>`. In general it's recommended that attributes always be quoted when their values are generated from a mustache to avoid any potential exploit surfaces.
 - AST constructors have been dropped in favor of plain old javascript objects
@@ -505,22 +582,25 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.3...v4.0.0)
 
 ## v3.0.3 - April 28th, 2015
+
 - [#1004](https://github.com/wycats/handlebars.js/issues/1004) - Latest version breaks with RequireJS (global is undefined) ([@boskee](https://github.com/boskee))
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.2...v3.0.3)
 
 ## v3.0.2 - April 20th, 2015
+
 - [#998](https://github.com/wycats/handlebars.js/pull/998) - Add full support for es6 ([@kpdecker](https://github.com/kpdecker))
 - [#994](https://github.com/wycats/handlebars.js/issues/994) - Access Handlebars.Visitor in browser ([@tamlyn](https://github.com/tamlyn))
 - [#990](https://github.com/wycats/handlebars.js/issues/990) - Allow passing null/undefined literals subexpressions ([@blimmer](https://github.com/blimmer))
 - [#989](https://github.com/wycats/handlebars.js/issues/989) - Source-map error with requirejs ([@SteppeEagle](https://github.com/SteppeEagle))
-- [#967](https://github.com/wycats/handlebars.js/issues/967) - can't access "this" property  ([@75lb](https://github.com/75lb))
+- [#967](https://github.com/wycats/handlebars.js/issues/967) - can't access "this" property ([@75lb](https://github.com/75lb))
 - Use captureStackTrace for error handler - a009a97
 - Ignore branches tested without coverage monitoring - 37a664b
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.1...v3.0.2)
 
 ## v3.0.1 - March 24th, 2015
+
 - [#984](https://github.com/wycats/handlebars.js/pull/984) - Adding documentation for passing arguments into partials ([@johneke](https://github.com/johneke))
 - [#973](https://github.com/wycats/handlebars.js/issues/973) - version 3 is slower than version 2 ([@elover](https://github.com/elover))
 - [#966](https://github.com/wycats/handlebars.js/issues/966) - "handlebars --version" does not work with v3.0.0 ([@abloomston](https://github.com/abloomston))
@@ -530,6 +610,7 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v3.0.0...v3.0.1)
 
 ## v3.0.0 - February 10th, 2015
+
 - [#941](https://github.com/wycats/handlebars.js/pull/941) - Add support for dynamic partial names ([@kpdecker](https://github.com/kpdecker))
 - [#940](https://github.com/wycats/handlebars.js/pull/940) - Add missing reserved words so compiler knows to use array syntax: ([@mattflaschen](https://github.com/mattflaschen))
 - [#938](https://github.com/wycats/handlebars.js/pull/938) - Fix example using #with helper ([@diwo](https://github.com/diwo))
@@ -559,6 +640,7 @@ Compatibility notes:
 - Lookup partials when undefined - 617dd57
 
 Compatibility notes:
+
 - Runtime breaking changes. Must match 3.x runtime and precompiler.
 - The AST has been upgraded to a public API.
   - There are a number of changes to this, but the format is now documented in docs/compiler-api.md
@@ -568,6 +650,7 @@ Compatibility notes:
 - `SafeString` is now duck typed on `toHTML`
 
 New Features:
+
 - noConflict
 - Source Maps
 - Block Params
@@ -580,6 +663,7 @@ New Features:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0...v3.0.0)
 
 ## v2.0.0 - September 1st, 2014
+
 - Update jsfiddle to 2.0.0-beta.1 - 0670f65
 - Add contrib note regarding handlebarsjs.com docs - 4d17e3c
 - Play nice with gemspec version numbers - 64d5481
@@ -587,6 +671,7 @@ New Features:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-beta.1...v2.0.0)
 
 ## v2.0.0-beta.1 - August 26th, 2014
+
 - [#787](https://github.com/wycats/handlebars.js/pull/787) - Remove whitespace surrounding standalone statements ([@kpdecker](https://github.com/kpdecker))
 - [#827](https://github.com/wycats/handlebars.js/issues/827) - Render false literal as “false” ([@scoot557](https://github.com/scoot557))
 - [#767](https://github.com/wycats/handlebars.js/issues/767) - Subexpressions bug with hash and context ([@evensoul](https://github.com/evensoul))
@@ -596,7 +681,7 @@ New Features:
   - [#837](https://github.com/wycats/handlebars.js/issues/837) - Strange input for custom helper ( foo.bar == false when foo is undefined ) ([@zordius](https://github.com/zordius))
 - [#819](https://github.com/wycats/handlebars.js/pull/819) - Implement recursive field lookup ([@kpdecker](https://github.com/kpdecker))
 - [#764](https://github.com/wycats/handlebars.js/issues/764) - This reference not working for helpers ([@kpdecker](https://github.com/kpdecker))
-- [#773](https://github.com/wycats/handlebars.js/issues/773) - Implicit parameters in {{#each}} introduces a peculiarity in helpers calling convention  ([@Bertrand](https://github.com/Bertrand))
+- [#773](https://github.com/wycats/handlebars.js/issues/773) - Implicit parameters in {{#each}} introduces a peculiarity in helpers calling convention ([@Bertrand](https://github.com/Bertrand))
 - [#783](https://github.com/wycats/handlebars.js/issues/783) - helperMissing and consistency for different expression types ([@ErisDS](https://github.com/ErisDS))
 - [#795](https://github.com/wycats/handlebars.js/pull/795) - Turn the precompile script into a wrapper around a module. ([@jwietelmann](https://github.com/jwietelmann))
 - [#823](https://github.com/wycats/handlebars.js/pull/823) - Support inverse sections on the with helper ([@dan-manges](https://github.com/dan-manges))
@@ -609,13 +694,14 @@ New Features:
 - Fix compiler program de-duping - 9e3f824
 
 Compatibility notes:
+
 - The default build now outputs a generic UMD wrapper. This should be transparent change but may cause issues in some environments.
 - Runtime compatibility breaks in both directions. Ensure that both compiler and client are upgraded to 2.0.0-beta.1 or higher at the same time.
   - `programWithDepth` has been removed an instead an array of context values is passed to fields needing depth lookups.
 - `false` values are now printed to output rather than silently dropped
 - Lines containing only block statements and whitespace are now removed. This matches the Mustache spec but may cause issues with code that expects whitespace to exist but would not otherwise.
 - Partials that are standalone will now indent their rendered content
-- `AST.ProgramNode`'s signature has changed. 
+- `AST.ProgramNode`'s signature has changed.
 - Numerious methods/features removed from pseudo-API classes
   - `JavaScriptCompiler.register`
   - `JavaScriptCompiler.replaceStack` no longer supports non-inline replace
@@ -630,11 +716,13 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.4...v2.0.0-beta.1)
 
 ## v2.0.0-alpha.4 - May 19th, 2014
+
 - Expose setup wrappers for compiled templates - 3638874
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.3...v2.0.0-alpha.4)
 
 ## v2.0.0-alpha.3 - May 19th, 2014
+
 - [#797](https://github.com/wycats/handlebars.js/pull/797) - Pass full helper ID to helperMissing when options are provided ([@tomdale](https://github.com/tomdale))
 - [#793](https://github.com/wycats/handlebars.js/pull/793) - Ensure isHelper is coerced to a boolean ([@mmun](https://github.com/mmun))
 - Refactor template init logic - 085e5e1
@@ -642,6 +730,7 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.2...v2.0.0-alpha.3)
 
 ## v2.0.0-alpha.2 - March 6th, 2014
+
 - [#756](https://github.com/wycats/handlebars.js/pull/756) - fix bug in IE<=8 (no Array::map), closes #751 ([@jenseng](https://github.com/jenseng))
 - [#749](https://github.com/wycats/handlebars.js/pull/749) - properly handle multiple subexpressions in the same hash, fixes #748 ([@jenseng](https://github.com/jenseng))
 - [#743](https://github.com/wycats/handlebars.js/issues/743) - subexpression confusion/problem? ([@waynedpj](https://github.com/waynedpj))
@@ -651,11 +740,13 @@ Compatibility notes:
 - Temporarily kill the AWS publish CI step - 8347ee2
 
 Compatibility notes:
+
 - A JSON polyfill is required to run the compiler under IE8 and below. It's recommended that the precompiler be used in lieu of running the compiler on these legacy environments.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v2.0.0-alpha.1...v2.0.0-alpha.2)
 
 ## v2.0.0-alpha.1 - February 10th, 2014
+
 - [#182](https://github.com/wycats/handlebars.js/pull/182) - Allow passing hash parameters to partials ([@kpdecker](https://github.com/kpdecker))
 - [#392](https://github.com/wycats/handlebars.js/pull/392) - Access to root context in partials and helpers ([@kpdecker](https://github.com/kpdecker))
 - [#472](https://github.com/wycats/handlebars.js/issues/472) - Helpers cannot have decimal parameters ([@kayleg](https://github.com/kayleg))
@@ -678,6 +769,7 @@ Compatibility notes:
 - [#704](https://github.com/wycats/handlebars.js/pull/704) - JavaScript Compiler Cleanup ([@blakeembrey](https://github.com/blakeembrey))
 
 Compatibility notes:
+
 - `helperMissing` helper no longer has the indexed name argument. Helper name is now available via `options.name`.
 - Precompiler output has changed, which breaks compatibility with prior versions of the runtime and precompiled output.
 - `JavaScriptCompiler.compilerInfo` now returns generic objects rather than javascript source.
@@ -690,6 +782,7 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v1.3.0...v2.0.0-alpha.1)
 
 ## v1.3.0 - January 1st, 2014
+
 - [#690](https://github.com/wycats/handlebars.js/pull/690) - Added support for subexpressions ([@machty](https://github.com/machty))
 - [#696](https://github.com/wycats/handlebars.js/pull/696) - Fix for reserved keyword "default" ([@nateirwin](https://github.com/nateirwin))
 - [#692](https://github.com/wycats/handlebars.js/pull/692) - add line numbers to nodes when parsing ([@fivetanley](https://github.com/fivetanley))
@@ -704,12 +797,14 @@ Compatibility notes:
 [Commits](https://github.com/wycats/handlebars.js/compare/v1.2.1...v1.3.0)
 
 ## v1.2.1 - December 26th, 2013
+
 - [#684](https://github.com/wycats/handlebars.js/pull/684) - Allow any number of trailing characters for valid JavaScript variable ([@blakeembrey](https://github.com/blakeembrey))
 - [#686](https://github.com/wycats/handlebars.js/pull/686) - Falsy AMD module names in version 1.2.0 ([@kpdecker](https://github.com/kpdecker))
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v1.2.0...v1.2.1)
 
 ## v1.2.0 - December 23rd, 2013
+
 - [#675](https://github.com/wycats/handlebars.js/issues/675) - Cannot compile empty template for partial ([@erwinw](https://github.com/erwinw))
 - [#677](https://github.com/wycats/handlebars.js/issues/677) - Triple brace statements fail under IE ([@hamzaCM](https://github.com/hamzaCM))
 - [#655](https://github.com/wycats/handlebars.js/issues/655) - Loading Handlebars using bower ([@niki4810](https://github.com/niki4810))
@@ -729,6 +824,7 @@ Compatibility notes:
 - Fix handling of boolean escape in MustacheNode - b4968bb
 
 Compatibility notes:
+
 - `@index` and `@first` are now supported for `each` iteration on objects
 - `Handlebars.VM.checkRevision` and `Handlebars.JavaScriptCompiler.prototype.compilerInfo` now available to modify the version checking behavior.
 - Browserify users may link to the runtime library via `require('handlebars/runtime')`
@@ -770,16 +866,15 @@ Compatibility notes:
 - [#571](https://github.com/wycats/handlebars.js/issues/571) - uglify upgrade breaks compatibility with older versions of node
 - [#587](https://github.com/wycats/handlebars.js/issues/587) - Partial inside partial breaks?
 
-
 Compatibility notes:
-- The project now includes separate artifacts for AMD, CommonJS, and global objects. 
+
+- The project now includes separate artifacts for AMD, CommonJS, and global objects.
   - AMD: Users may load the bundled `handlebars.amd.js` or `handlebars.runtime.amd.js` files or load individual modules directly. AMD users should also note that the handlebars object is exposed via the `default` field on the imported object. This [gist](https://gist.github.com/wycats/7417be0dc361a69d5916) provides some discussion of possible compatibility shims.
   - CommonJS/Node: Node loading occurs as normal via `require`
   - Globals: The `handlebars.js` and `handlebars.runtime.js` files should behave in the same manner as the v1.0.12 / 1.0.0 release.
-- Build artifacts have been removed from the repository. [npm][npm], [components/handlebars.js][components], [cdnjs][cdnjs], or the [builds page][builds-page] should now be used as the source of built artifacts. 
+- Build artifacts have been removed from the repository. [npm][npm], [components/handlebars.js][components], [cdnjs][cdnjs], or the [builds page][builds-page] should now be used as the source of built artifacts.
 - Context-stored helpers are now always passed the `options` hash. Previously no-argument helpers did not have this argument.
 
-
 [Commits](https://github.com/wycats/handlebars.js/compare/v1.0.12...v1.1.0)
 
 ## v1.0.12 / 1.0.0 - May 31 2013
@@ -797,6 +892,7 @@ Compatibility notes:
 - Docs updates
 
 Compatibility notes:
+
 - The parser is now stricter on `{{{`, requiring that the end token be `}}}`. Templates that do not
   follow this convention should add the additional brace value.
 - Code that relies on global the namespace being muted when custom helpers or partials are passed will need to explicitly pass an `undefined` value for any helpers that should not be available.
@@ -863,13 +959,13 @@ changed.
 Instead of:
 
 ```js
-template(context, helpers, partials, [data])
+template(context, helpers, partials, [data]);
 ```
 
 Use:
 
 ```js
-template(context, {helpers: helpers, partials: partials, data: data})
+template(context, { helpers: helpers, partials: partials, data: data });
 ```
 
 [builds-page]: http://builds.handlebarsjs.com.s3.amazonaws.com/index.html

From 91a1b5d2f456cb733cbd88149fc9270973db79d7 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 8 Jan 2020 23:45:15 +0100
Subject: [PATCH 144/191] v4.6.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 07e2baa96..c4501c0f9 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.3",
+  "version": "4.6.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index e8d52d4ca..34886aea7 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.5.3</version>
+		<version>4.6.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 9623086b4..8e66182b2 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.5.3",
+  "version": "4.6.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index c655e8f09..88ba0ddcc 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import { registerDefaultHelpers } from './helpers';
 import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.5.3';
+export const VERSION = '4.6.0';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index c164ea9c2..dadcbb543 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.5.3",
+  "version": "4.6.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 7af1c12db6222ab4b689bb60820628209d295049 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 9 Jan 2020 23:00:32 +0100
Subject: [PATCH 145/191] feat: default options for controlling proto access

This commmit adds the runtime options
- `allowProtoPropertiesByDefault` (boolean, default: false) and
- `allowProtoMethodsByDefault` (boolean, default: false)`
which can be used to allow access to prototype properties and
functions in general.

Specific properties and methods can still be disabled from access
via `allowedProtoProperties` and `allowedProtoMethods` by
setting the corresponding values to false.

The methods `constructor`, `__defineGetter__`, `__defineSetter__`, `__lookupGetter__`
and the property `__proto__` will be disabled, even if the allow...ByDefault-options
are set to true. In order to allow access to those properties and methods, they have
to be explicitly set to true in the 'allowedProto...'-options.

A warning is logged when the a proto-access it attempted and denied
by default (i.e. if no option is set by the user to make the access
decision explicit)
---
 ...pObject.js => create-new-lookup-object.js} |   0
 lib/handlebars/internal/proto-access.js       |  55 ++++
 lib/handlebars/runtime.js                     |  29 +-
 spec/security.js                              | 275 +++++++++++-------
 types/index.d.ts                              |   6 +-
 types/test.ts                                 |   6 +-
 6 files changed, 251 insertions(+), 120 deletions(-)
 rename lib/handlebars/internal/{createNewLookupObject.js => create-new-lookup-object.js} (100%)
 create mode 100644 lib/handlebars/internal/proto-access.js

diff --git a/lib/handlebars/internal/createNewLookupObject.js b/lib/handlebars/internal/create-new-lookup-object.js
similarity index 100%
rename from lib/handlebars/internal/createNewLookupObject.js
rename to lib/handlebars/internal/create-new-lookup-object.js
diff --git a/lib/handlebars/internal/proto-access.js b/lib/handlebars/internal/proto-access.js
new file mode 100644
index 000000000..59bf14448
--- /dev/null
+++ b/lib/handlebars/internal/proto-access.js
@@ -0,0 +1,55 @@
+import { createNewLookupObject } from './create-new-lookup-object';
+
+export function createProtoAccessControl(runtimeOptions) {
+  let defaultMethodWhiteList = Object.create(null);
+  defaultMethodWhiteList['constructor'] = false;
+  defaultMethodWhiteList['__defineGetter__'] = false;
+  defaultMethodWhiteList['__defineSetter__'] = false;
+  defaultMethodWhiteList['__lookupGetter__'] = false;
+
+  let defaultPropertyWhiteList = Object.create(null);
+  // eslint-disable-next-line no-proto
+  defaultPropertyWhiteList['__proto__'] = false;
+
+  return {
+    properties: {
+      whitelist: createNewLookupObject(
+        defaultPropertyWhiteList,
+        runtimeOptions.allowedProtoProperties
+      ),
+      defaultValue: runtimeOptions.allowProtoPropertiesByDefault
+    },
+    methods: {
+      whitelist: createNewLookupObject(
+        defaultMethodWhiteList,
+        runtimeOptions.allowedProtoMethods
+      ),
+      defaultValue: runtimeOptions.allowProtoMethodsByDefault
+    }
+  };
+}
+
+export function resultIsAllowed(result, protoAccessControl, propertyName) {
+  if (typeof result === 'function') {
+    return checkWhiteList(protoAccessControl.methods, propertyName);
+  } else {
+    return checkWhiteList(protoAccessControl.properties, propertyName);
+  }
+}
+
+function checkWhiteList(protoAccessControlForType, propertyName) {
+  if (protoAccessControlForType.whitelist[propertyName] !== undefined) {
+    return protoAccessControlForType.whitelist[propertyName] === true;
+  }
+  if (protoAccessControlForType.defaultValue !== undefined) {
+    return protoAccessControlForType.defaultValue;
+  }
+
+  // eslint-disable-next-line no-console
+  console.error(
+    `Handlebars: Access has been denied to resolve the property "${propertyName}" because it is not an "own property" of its parent.\n` +
+      `You can add a runtime option to disable the check or this warning:\n` +
+      `See http://localhost:8080/api-reference/runtime-options.html#options-to-control-prototype-access for details`
+  );
+  return false;
+}
diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 7d63e87b8..67a500d79 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -8,7 +8,10 @@ import {
 } from './base';
 import { moveHelperToHooks } from './helpers';
 import { wrapHelper } from './internal/wrapHelper';
-import { createNewLookupObject } from './internal/createNewLookupObject';
+import {
+  createProtoAccessControl,
+  resultIsAllowed
+} from './internal/proto-access';
 
 export function checkRevision(compilerInfo) {
   const compilerRevision = (compilerInfo && compilerInfo[0]) || 1,
@@ -73,8 +76,7 @@ export function template(templateSpec, env) {
 
     let extendedOptions = Utils.extend({}, options, {
       hooks: this.hooks,
-      allowedProtoMethods: this.allowedProtoMethods,
-      allowedProtoProperties: this.allowedProtoProperties
+      protoAccessControl: this.protoAccessControl
     });
 
     let result = env.VM.invokePartial.call(
@@ -126,15 +128,14 @@ export function template(templateSpec, env) {
     },
     lookupProperty: function(parent, propertyName) {
       let result = parent[propertyName];
+      if (result == null) {
+        return result;
+      }
       if (Object.prototype.hasOwnProperty.call(parent, propertyName)) {
         return result;
       }
-      const whitelist =
-        typeof result === 'function'
-          ? container.allowedProtoMethods
-          : container.allowedProtoProperties;
 
-      if (whitelist[propertyName] === true) {
+      if (resultIsAllowed(result, container.protoAccessControl, propertyName)) {
         return result;
       }
       return undefined;
@@ -237,6 +238,7 @@ export function template(templateSpec, env) {
         )
       );
     }
+
     main = executeDecorators(
       templateSpec.main,
       main,
@@ -247,6 +249,7 @@ export function template(templateSpec, env) {
     );
     return main(context, options);
   }
+
   ret.isTop = true;
 
   ret._setup = function(options) {
@@ -271,12 +274,7 @@ export function template(templateSpec, env) {
       }
 
       container.hooks = {};
-      container.allowedProtoProperties = createNewLookupObject(
-        options.allowedProtoProperties
-      );
-      container.allowedProtoMethods = createNewLookupObject(
-        options.allowedProtoMethods
-      );
+      container.protoAccessControl = createProtoAccessControl(options);
 
       let keepHelperInHelpers =
         options.allowCallsToHelperMissing ||
@@ -284,8 +282,7 @@ export function template(templateSpec, env) {
       moveHelperToHooks(container, 'helperMissing', keepHelperInHelpers);
       moveHelperToHooks(container, 'blockHelperMissing', keepHelperInHelpers);
     } else {
-      container.allowedProtoProperties = options.allowedProtoProperties;
-      container.allowedProtoMethods = options.allowedProtoMethods;
+      container.protoAccessControl = options.protoAccessControl; // internal option
       container.helpers = options.helpers;
       container.partials = options.partials;
       container.decorators = options.decorators;
diff --git a/spec/security.js b/spec/security.js
index 7bf9d89a0..bf0be1485 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -149,176 +149,251 @@ describe('security issues', function() {
     });
   });
 
-  describe('GH-1595', function() {
-    it('properties, that are required to be own properties', function() {
-      expectTemplate('{{constructor}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{__defineGetter__}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{__defineSetter__}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{__lookupGetter__}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{__proto__}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{lookup this "constructor"}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{lookup this "__defineGetter__"}}')
-        .withInput({})
-        .toCompileTo('');
-
-      expectTemplate('{{lookup this "__defineSetter__"}}')
-        .withInput({})
-        .toCompileTo('');
+  describe('GH-1595: dangerous properties', function() {
+    var templates = [
+      '{{constructor}}',
+      '{{__defineGetter__}}',
+      '{{__defineSetter__}}',
+      '{{__lookupGetter__}}',
+      '{{__proto__}}',
+      '{{lookup this "constructor"}}',
+      '{{lookup this "__defineGetter__"}}',
+      '{{lookup this "__defineSetter__"}}',
+      '{{lookup this "__lookupGetter__"}}',
+      '{{lookup this "__proto__"}}'
+    ];
+
+    templates.forEach(function(template) {
+      describe('access should be denied to ' + template, function() {
+        it('by default', function() {
+          expectTemplate(template)
+            .withInput({})
+            .toCompileTo('');
+        });
+        it(' with proto-access enabled', function() {
+          expectTemplate(template)
+            .withInput({})
+            .withRuntimeOptions({
+              allowProtoPropertiesByDefault: true,
+              allowProtoMethodsByDefault: true
+            })
+            .toCompileTo('');
+        });
+      });
+    });
+  });
+  describe('GH-1631: disallow access to prototype functions', function() {
+    function TestClass() {}
 
-      expectTemplate('{{lookup this "__lookupGetter__"}}')
-        .withInput({})
-        .toCompileTo('');
+    TestClass.prototype.aProperty = 'propertyValue';
+    TestClass.prototype.aMethod = function() {
+      return 'returnValue';
+    };
 
-      expectTemplate('{{lookup this "__proto__"}}')
-        .withInput({})
-        .toCompileTo('');
+    afterEach(function() {
+      sinon.restore();
     });
 
-    describe('GH-1631: disallow access to prototype functions', function() {
-      function TestClass() {}
+    describe('control access to prototype methods via "allowedProtoMethods"', function() {
+      checkProtoMethodAccess({});
+
+      describe('in compat mode', function() {
+        checkProtoMethodAccess({ compat: true });
+      });
 
-      TestClass.prototype.aProperty = 'propertyValue';
-      TestClass.prototype.aMethod = function() {
-        return 'returnValue';
-      };
+      function checkProtoMethodAccess(compileOptions) {
+        it('should be prohibited by default and log a warning', function() {
+          var spy = sinon.spy(console, 'error');
 
-      describe('control access to prototype methods via "allowedProtoMethods"', function() {
-        it('should be prohibited by default', function() {
           expectTemplate('{{aMethod}}')
             .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
             .toCompileTo('');
+
+          expect(spy.calledOnce).to.be.true();
+          expect(spy.args[0][0]).to.match(/Handlebars: Access has been denied/);
         });
 
-        it('can be allowed', function() {
+        it('can be allowed, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
+
           expectTemplate('{{aMethod}}')
             .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
             .withRuntimeOptions({
               allowedProtoMethods: {
                 aMethod: true
               }
             })
             .toCompileTo('returnValue');
+
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('should be prohibited by default (in "compat" mode)', function() {
+        it('can be turned on by default, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
+
           expectTemplate('{{aMethod}}')
             .withInput(new TestClass())
-            .withCompileOptions({ compat: true })
-            .toCompileTo('');
+            .withCompileOptions(compileOptions)
+            .withRuntimeOptions({
+              allowProtoMethodsByDefault: true
+            })
+            .toCompileTo('returnValue');
+
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('can be allowed (in "compat" mode)', function() {
+        it('can be turned off by default, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
+
           expectTemplate('{{aMethod}}')
             .withInput(new TestClass())
-            .withCompileOptions({ compat: true })
+            .withCompileOptions(compileOptions)
             .withRuntimeOptions({
-              allowedProtoMethods: {
-                aMethod: true
-              }
+              allowProtoMethodsByDefault: false
             })
-            .toCompileTo('returnValue');
-        });
+            .toCompileTo('');
 
-        it('should cause the recursive lookup by default (in "compat" mode)', function() {
-          expectTemplate('{{#aString}}{{trim}}{{/aString}}')
-            .withInput({ aString: '  abc  ', trim: 'trim' })
-            .withCompileOptions({ compat: true })
-            .toCompileTo('trim');
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('should not cause the recursive lookup if allowed through options(in "compat" mode)', function() {
-          expectTemplate('{{#aString}}{{trim}}{{/aString}}')
-            .withInput({ aString: '  abc  ', trim: 'trim' })
-            .withCompileOptions({ compat: true })
+        it('can be turned off, if turned on by default', function() {
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
             .withRuntimeOptions({
+              allowProtoMethodsByDefault: true,
               allowedProtoMethods: {
-                trim: true
+                aMethod: false
               }
             })
-            .toCompileTo('abc');
+            .toCompileTo('');
         });
+      }
+
+      it('should cause the recursive lookup by default (in "compat" mode)', function() {
+        expectTemplate('{{#aString}}{{trim}}{{/aString}}')
+          .withInput({ aString: '  abc  ', trim: 'trim' })
+          .withCompileOptions({ compat: true })
+          .toCompileTo('trim');
+      });
+
+      it('should not cause the recursive lookup if allowed through options(in "compat" mode)', function() {
+        expectTemplate('{{#aString}}{{trim}}{{/aString}}')
+          .withInput({ aString: '  abc  ', trim: 'trim' })
+          .withCompileOptions({ compat: true })
+          .withRuntimeOptions({
+            allowedProtoMethods: {
+              trim: true
+            }
+          })
+          .toCompileTo('abc');
       });
+    });
+
+    describe('control access to prototype non-methods via "allowedProtoProperties" and "allowProtoPropertiesByDefault', function() {
+      checkProtoPropertyAccess({});
+
+      describe('in compat-mode', function() {
+        checkProtoPropertyAccess({ compat: true });
+      });
+
+      function checkProtoPropertyAccess(compileOptions) {
+        it('should be prohibited by default and log a warning', function() {
+          var spy = sinon.spy(console, 'error');
+
+          expectTemplate('{{aProperty}}')
+            .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
+            .toCompileTo('');
+
+          expect(spy.calledOnce).to.be.true();
+          expect(spy.args[0][0]).to.match(/Handlebars: Access has been denied/);
+        });
+
+        it('can be explicitly prohibited by default, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
 
-      describe('control access to prototype non-methods via "allowedProtoProperties"', function() {
-        it('should be prohibited by default', function() {
           expectTemplate('{{aProperty}}')
             .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
+            .withRuntimeOptions({
+              allowProtoPropertiesByDefault: false
+            })
             .toCompileTo('');
+
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('can be turned on', function() {
+        it('can be turned on, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
+
           expectTemplate('{{aProperty}}')
             .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
             .withRuntimeOptions({
               allowedProtoProperties: {
                 aProperty: true
               }
             })
             .toCompileTo('propertyValue');
+
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('should be prohibited by default (in "compat" mode)', function() {
+        it('can be turned on by default, which disables the warning', function() {
+          var spy = sinon.spy(console, 'error');
+
           expectTemplate('{{aProperty}}')
             .withInput(new TestClass())
-            .withCompileOptions({ compat: true })
-            .toCompileTo('');
+            .withCompileOptions(compileOptions)
+            .withRuntimeOptions({
+              allowProtoPropertiesByDefault: true
+            })
+            .toCompileTo('propertyValue');
+
+          expect(spy.callCount).to.equal(0);
         });
 
-        it('can be turned on (in "compat" mode)', function() {
+        it('can be turned off, if turned on by default', function() {
           expectTemplate('{{aProperty}}')
             .withInput(new TestClass())
-            .withCompileOptions({ compat: true })
+            .withCompileOptions(compileOptions)
             .withRuntimeOptions({
+              allowProtoPropertiesByDefault: true,
               allowedProtoProperties: {
-                aProperty: true
+                aProperty: false
               }
             })
-            .toCompileTo('propertyValue');
+            .toCompileTo('');
         });
-      });
+      }
+    });
 
-      describe('compatibility with old runtimes, that do not provide the function "container.lookupProperty"', function() {
-        beforeEach(function simulateRuntimeWithoutLookupProperty() {
-          var oldTemplateMethod = handlebarsEnv.template;
-          sinon.replace(handlebarsEnv, 'template', function(templateSpec) {
-            templateSpec.main = wrapToAdjustContainer(templateSpec.main);
-            return oldTemplateMethod.call(this, templateSpec);
-          });
+    describe('compatibility with old runtimes, that do not provide the function "container.lookupProperty"', function() {
+      beforeEach(function simulateRuntimeWithoutLookupProperty() {
+        var oldTemplateMethod = handlebarsEnv.template;
+        sinon.replace(handlebarsEnv, 'template', function(templateSpec) {
+          templateSpec.main = wrapToAdjustContainer(templateSpec.main);
+          return oldTemplateMethod.call(this, templateSpec);
         });
+      });
 
-        afterEach(function() {
-          sinon.restore();
-        });
+      afterEach(function() {
+        sinon.restore();
+      });
 
-        it('should work with simple properties', function() {
-          expectTemplate('{{aProperty}}')
-            .withInput({ aProperty: 'propertyValue' })
-            .toCompileTo('propertyValue');
-        });
+      it('should work with simple properties', function() {
+        expectTemplate('{{aProperty}}')
+          .withInput({ aProperty: 'propertyValue' })
+          .toCompileTo('propertyValue');
+      });
 
-        it('should work with Array.prototype.length', function() {
-          expectTemplate('{{anArray.length}}')
-            .withInput({ anArray: ['a', 'b', 'c'] })
-            .toCompileTo('3');
-        });
+      it('should work with Array.prototype.length', function() {
+        expectTemplate('{{anArray.length}}')
+          .withInput({ anArray: ['a', 'b', 'c'] })
+          .toCompileTo('3');
       });
     });
   });
diff --git a/types/index.d.ts b/types/index.d.ts
index 606741f5a..1fa83680d 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -30,8 +30,10 @@ declare namespace Handlebars {
       data?: any;
       blockParams?: any[];
       allowCallsToHelperMissing?: boolean;
-      allowedProtoProperties?: { [name: string]: boolean }
-      allowedProtoMethods?: { [name: string]: boolean }
+      allowedProtoProperties?: { [name: string]: boolean };
+      allowedProtoMethods?: { [name: string]: boolean };
+      allowProtoPropertiesByDefault?: boolean;
+      allowProtoMethodsByDefault?: boolean;
   }
 
   export interface HelperOptions {
diff --git a/types/test.ts b/types/test.ts
index b081ae4fb..7a34b7eba 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -241,12 +241,14 @@ function testExceptionWithNodeTypings() {
   let stack: string | undefined = exception.stack;
 }
 
-function testProtoPropertyControlOptions() {
+function testProtoAccessControlControlOptions() {
   Handlebars.compile('test')(
     {},
     {
       allowedProtoMethods: { allowedMethod: true, forbiddenMethod: false },
-      allowedProtoProperties: { allowedProperty: true, forbiddenProperty: false }
+      allowedProtoProperties: { allowedProperty: true, forbiddenProperty: false },
+      allowProtoMethodsByDefault: true,
+      allowProtoPropertiesByDefault: false,
     }
   );
 }

From 575d8772e2ccf05da235c596dd3405ae74194e1b Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 10 Jan 2020 17:05:23 +0100
Subject: [PATCH 146/191] fix: use "logger" instead of console.error

... to be graceful with older browser without "console"
---
 lib/handlebars/internal/proto-access.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/handlebars/internal/proto-access.js b/lib/handlebars/internal/proto-access.js
index 59bf14448..a10f5124c 100644
--- a/lib/handlebars/internal/proto-access.js
+++ b/lib/handlebars/internal/proto-access.js
@@ -1,4 +1,5 @@
 import { createNewLookupObject } from './create-new-lookup-object';
+import * as logger from '../logger';
 
 export function createProtoAccessControl(runtimeOptions) {
   let defaultMethodWhiteList = Object.create(null);
@@ -44,9 +45,9 @@ function checkWhiteList(protoAccessControlForType, propertyName) {
   if (protoAccessControlForType.defaultValue !== undefined) {
     return protoAccessControlForType.defaultValue;
   }
-
   // eslint-disable-next-line no-console
-  console.error(
+  logger.log(
+    'error',
     `Handlebars: Access has been denied to resolve the property "${propertyName}" because it is not an "own property" of its parent.\n` +
       `You can add a runtime option to disable the check or this warning:\n` +
       `See http://localhost:8080/api-reference/runtime-options.html#options-to-control-prototype-access for details`

From 1f0834b1a2937150923f9de849b9612bd1969d11 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 10 Jan 2020 17:23:31 +0100
Subject: [PATCH 147/191] Update release notes

---
 release-notes.md | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index d75b32024..ac4fc5041 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,22 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.6.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.0...master)
+
+## v4.7.0 - January 10th, 2020
+
+Features:
+
+- feat: default options for controlling proto access - 7af1c12, #1635
+  - This makes it possible to disable the prototype access restrictions added in 4.6.0
+  - an error is logged in the console, if access to prototype properties is attempted and denied
+    and no explicit configuration has taken place.
+
+Compatibility notes:
+
+- no compatibilities are expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.6.0...v4.7.0)
 
 ## v4.6.0 - January 8th, 2020
 

From 0d5c807017f8ba6c6d947f9d6852033c8faa2e49 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Fri, 10 Jan 2020 17:24:06 +0100
Subject: [PATCH 148/191] v4.7.0

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index c4501c0f9..5bb095bc1 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.6.0",
+  "version": "4.7.0",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 34886aea7..91f7baf80 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.6.0</version>
+		<version>4.7.0</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 8e66182b2..d040cda4f 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.6.0",
+  "version": "4.7.0",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 88ba0ddcc..a80e0dde4 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -4,7 +4,7 @@ import { registerDefaultHelpers } from './helpers';
 import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 
-export const VERSION = '4.6.0';
+export const VERSION = '4.7.0';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index dadcbb543..62e640504 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.6.0",
+  "version": "4.7.0",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 3c1e2521694583bc1d8bade1ed5b162f5bfb065a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 12 Jan 2020 13:06:56 +0100
Subject: [PATCH 149/191] fix: log error for illegal property access only once
 per property

---
 lib/handlebars/base.js                  |  8 +++++++
 lib/handlebars/internal/proto-access.js | 28 ++++++++++++++++++-------
 spec/security.js                        | 21 +++++++++++++++++++
 3 files changed, 50 insertions(+), 7 deletions(-)

diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index a80e0dde4..6e58ad8b4 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -3,6 +3,7 @@ import Exception from './exception';
 import { registerDefaultHelpers } from './helpers';
 import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
+import { resetLoggedProperties } from './internal/proto-access';
 
 export const VERSION = '4.7.0';
 export const COMPILER_REVISION = 8;
@@ -78,6 +79,13 @@ HandlebarsEnvironment.prototype = {
   },
   unregisterDecorator: function(name) {
     delete this.decorators[name];
+  },
+  /**
+   * Reset the memory of illegal property accesses that have already been logged.
+   * @deprecated should only be used in handlebars test-cases
+   */
+  resetLoggedPropertyAccesses() {
+    resetLoggedProperties();
   }
 };
 
diff --git a/lib/handlebars/internal/proto-access.js b/lib/handlebars/internal/proto-access.js
index a10f5124c..7bf9553f3 100644
--- a/lib/handlebars/internal/proto-access.js
+++ b/lib/handlebars/internal/proto-access.js
@@ -1,6 +1,8 @@
 import { createNewLookupObject } from './create-new-lookup-object';
 import * as logger from '../logger';
 
+const loggedProperties = Object.create(null);
+
 export function createProtoAccessControl(runtimeOptions) {
   let defaultMethodWhiteList = Object.create(null);
   defaultMethodWhiteList['constructor'] = false;
@@ -45,12 +47,24 @@ function checkWhiteList(protoAccessControlForType, propertyName) {
   if (protoAccessControlForType.defaultValue !== undefined) {
     return protoAccessControlForType.defaultValue;
   }
-  // eslint-disable-next-line no-console
-  logger.log(
-    'error',
-    `Handlebars: Access has been denied to resolve the property "${propertyName}" because it is not an "own property" of its parent.\n` +
-      `You can add a runtime option to disable the check or this warning:\n` +
-      `See http://localhost:8080/api-reference/runtime-options.html#options-to-control-prototype-access for details`
-  );
+  logUnexpecedPropertyAccessOnce(propertyName);
   return false;
 }
+
+function logUnexpecedPropertyAccessOnce(propertyName) {
+  if (loggedProperties[propertyName] !== true) {
+    loggedProperties[propertyName] = true;
+    logger.log(
+      'error',
+      `Handlebars: Access has been denied to resolve the property "${propertyName}" because it is not an "own property" of its parent.\n` +
+        `You can add a runtime option to disable the check or this warning:\n` +
+        `See http://localhost:8080/api-reference/runtime-options.html#options-to-control-prototype-access for details`
+    );
+  }
+}
+
+export function resetLoggedProperties() {
+  Object.keys(loggedProperties).forEach(propertyName => {
+    delete loggedProperties[propertyName];
+  });
+}
diff --git a/spec/security.js b/spec/security.js
index bf0be1485..1b345f0cc 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -190,6 +190,10 @@ describe('security issues', function() {
       return 'returnValue';
     };
 
+    beforeEach(function() {
+      handlebarsEnv.resetLoggedPropertyAccesses();
+    });
+
     afterEach(function() {
       sinon.restore();
     });
@@ -214,6 +218,23 @@ describe('security issues', function() {
           expect(spy.args[0][0]).to.match(/Handlebars: Access has been denied/);
         });
 
+        it('should only log the warning once', function() {
+          var spy = sinon.spy(console, 'error');
+
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
+            .toCompileTo('');
+
+          expectTemplate('{{aMethod}}')
+            .withInput(new TestClass())
+            .withCompileOptions(compileOptions)
+            .toCompileTo('');
+
+          expect(spy.calledOnce).to.be.true();
+          expect(spy.args[0][0]).to.match(/Handlebars: Access has been denied/);
+        });
+
         it('can be allowed, which disables the warning', function() {
           var spy = sinon.spy(console, 'error');
 

From f152dfc89204e8c117605d602dac4fdc174ddcd9 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 12 Jan 2020 13:09:19 +0100
Subject: [PATCH 150/191] fix: fix log output in case of illegal property
 access

- fix link url to handlebarsjs.com
---
 lib/handlebars/internal/proto-access.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/handlebars/internal/proto-access.js b/lib/handlebars/internal/proto-access.js
index 7bf9553f3..a8c5394d5 100644
--- a/lib/handlebars/internal/proto-access.js
+++ b/lib/handlebars/internal/proto-access.js
@@ -58,7 +58,7 @@ function logUnexpecedPropertyAccessOnce(propertyName) {
       'error',
       `Handlebars: Access has been denied to resolve the property "${propertyName}" because it is not an "own property" of its parent.\n` +
         `You can add a runtime option to disable the check or this warning:\n` +
-        `See http://localhost:8080/api-reference/runtime-options.html#options-to-control-prototype-access for details`
+        `See https://handlebarsjs.com/api-reference/runtime-options.html#options-to-control-prototype-access for details`
     );
   }
 }

From 4cddfe7017c28235ccad98f3434deb3725258da8 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 12 Jan 2020 13:20:37 +0100
Subject: [PATCH 151/191] Update release notes

---
 release-notes.md | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index ac4fc5041..8e391a775 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,20 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.0...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.1...master)
+
+## v4.7.1 - January 12th, 2020
+
+Bugfixes:
+
+- fix: fix log output in case of illegal property access - f152dfc
+- fix: log error for illegal property access only once per property - 3c1e252
+
+Compatibility notes:
+
+- no incompatibilities are to be expected.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.0...v4.7.1)
 
 ## v4.7.0 - January 10th, 2020
 

From 14ba3d0c43d75bcfcdbfb7c95c9fac99d88a17c8 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Sun, 12 Jan 2020 13:21:08 +0100
Subject: [PATCH 152/191] v4.7.1

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 5bb095bc1..ccebdef1b 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.0",
+  "version": "4.7.1",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 91f7baf80..44747f7f4 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.0</version>
+		<version>4.7.1</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index d040cda4f..c296a32c2 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.0",
+  "version": "4.7.1",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 6e58ad8b4..2aa3a62f5 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.0';
+export const VERSION = '4.7.1';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 62e640504..5c289a2c2 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.0",
+  "version": "4.7.1",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 9d5aa363cf3031b586e9945cf990e178f5b370db Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 13 Jan 2020 21:39:01 +0100
Subject: [PATCH 153/191] fix: don't wrap helpers that are not functions

- helpers should always be a function, but in #1639 one seems to
  be undefined. This was not a problem before 4.6 because helpers
  weren't wrapped then.
  Now, we must take care only to wrap helpers (when adding
  the "lookupProperty" function to the options), if they
  are really functions.
---
 lib/handlebars/internal/wrapHelper.js | 5 +++++
 spec/regressions.js                   | 9 +++++++++
 2 files changed, 14 insertions(+)

diff --git a/lib/handlebars/internal/wrapHelper.js b/lib/handlebars/internal/wrapHelper.js
index 0010eb8c2..29d65b033 100644
--- a/lib/handlebars/internal/wrapHelper.js
+++ b/lib/handlebars/internal/wrapHelper.js
@@ -1,4 +1,9 @@
 export function wrapHelper(helper, transformOptionsFn) {
+  if (typeof helper !== 'function') {
+    // This should not happen, but apparently it does in https://github.com/wycats/handlebars.js/issues/1639
+    // We try to make the wrapper least-invasive by not wrapping it, if the helper is not a function.
+    return helper;
+  }
   let wrapper = function(/* dynamic arguments */) {
     const options = arguments[arguments.length - 1];
     arguments[arguments.length - 1] = transformOptionsFn(options);
diff --git a/spec/regressions.js b/spec/regressions.js
index 3a84dd7da..f6147ad6e 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -518,4 +518,13 @@ describe('Regressions', function() {
       sinon.restore();
     });
   });
+
+  describe("GH-1639: TypeError: Cannot read property 'apply' of undefined\" when handlebars version > 4.6.0 (undocumented, deprecated usage)", function() {
+    it('should treat undefined helpers like non-existing helpers', function() {
+      expectTemplate('{{foo}}')
+        .withHelper('foo', undefined)
+        .withInput({ foo: 'bar' })
+        .toCompileTo('bar');
+    });
+  });
 });

From a4fd391ba1c9faa1004e879f314beb80c3afe0b6 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 13 Jan 2020 21:47:51 +0100
Subject: [PATCH 154/191] chore: execute saucelabs-task only if access-key
 exists

- up to now, the existance of the SAUCE_USERNAME was checked
  but this variable is even present in pull-requests from other
  repos. This means that builds fail, because the access key
  is not there.
  This change looks for SAUCE_ACCESS_KEY instead, which is
  a secure variable, only present in build originating from
  the handlebars.js repo.
---
 Gruntfile.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 65e0b8f33..528c0af82 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -267,7 +267,7 @@ module.exports = function(grunt) {
 
   grunt.registerTask('bench', ['metrics']);
 
-  if (process.env.SAUCE_USERNAME) {
+  if (process.env.SAUCE_ACCESS_KEY) {
     grunt.registerTask('sauce', ['concat:tests', 'connect', 'saucelabs-mocha']);
   } else {
     grunt.registerTask('sauce', []);

From f0c6c4cc1f9a91371535ad6affe09dfc1880dd9e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 13 Jan 2020 21:52:50 +0100
Subject: [PATCH 155/191] Update release notes

---
 release-notes.md | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 8e391a775..09ecc2a03 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,23 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.1...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.2...master)
+
+## v4.7.2 - January 13th, 2020
+
+Bugfixes:
+
+- fix: don't wrap helpers that are not functions - 9d5aa36, #1639
+
+Chore/Build:
+
+- chore: execute saucelabs-task only if access-key exists - a4fd391
+
+Compatibility notes:
+
+- No breaking changes are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.1...v4.7.2)
 
 ## v4.7.1 - January 12th, 2020
 

From 586e672c8bba7db787bc9bfe9a9fde4ec98d5b4f Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Mon, 13 Jan 2020 21:53:14 +0100
Subject: [PATCH 156/191] v4.7.2

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index ccebdef1b..f62ac8caf 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 44747f7f4..078ea8693 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.1</version>
+		<version>4.7.2</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index c296a32c2..0963613b1 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 2aa3a62f5..40f2fc561 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.1';
+export const VERSION = '4.7.2';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 5c289a2c2..8b6658e83 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From ad63f5189ffe262e013f2bb9da69c66bed7801ee Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Tue, 21 Jan 2020 21:52:23 +0100
Subject: [PATCH 157/191] chore: add missing "await" in aws-s3 publishing code

closes #1644
---
 tasks/publish-to-aws.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tasks/publish-to-aws.js b/tasks/publish-to-aws.js
index b551e1c95..49655fa17 100644
--- a/tasks/publish-to-aws.js
+++ b/tasks/publish-to-aws.js
@@ -59,10 +59,10 @@ module.exports = function(grunt) {
       'handlebars.runtime.js',
       'handlebars.runtime.min.js'
     ];
-    const publishPromises = filenames.map(filename => {
+    const publishPromises = filenames.map(async filename => {
       const nameInBucket = getNameInBucket(filename, suffix);
       const localFile = getLocalFile(filename);
-      uploadToBucket(localFile, nameInBucket);
+      await uploadToBucket(localFile, nameInBucket);
       grunt.log.writeln(
         `Published ${localFile} to build server (${nameInBucket})`
       );

From a32d05f2fc65b1c017e7f482430392d242a97ffc Mon Sep 17 00:00:00 2001
From: papasmile <ismail@azizahsolutions.biz>
Date: Tue, 4 Feb 2020 15:10:00 -0500
Subject: [PATCH 158/191] Include Type Definition for runtime.js in Package

---
 package.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8b6658e83..3cccd3457 100644
--- a/package.json
+++ b/package.json
@@ -111,7 +111,8 @@
     "print-script",
     "release-notes.md",
     "runtime.js",
-    "types/*.d.ts"
+    "types/*.d.ts",
+    "runtime.d.ts"
   ],
   "husky": {
     "hooks": {

From 4de51fe26ba049c743993424b937c0afc6cd9ae9 Mon Sep 17 00:00:00 2001
From: ismailjones <ismail.nospam@zoho.com>
Date: Tue, 4 Feb 2020 16:47:05 -0500
Subject: [PATCH 159/191] Add Type Definition for Handlebars.VERSION, Fixes
 #1647

---
 types/index.d.ts | 2 ++
 types/test.ts    | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/types/index.d.ts b/types/index.d.ts
index 1fa83680d..3f2f8b792 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -88,6 +88,8 @@ declare namespace Handlebars {
   // TODO: replace Function with actual signature
   export const decorators: { [name: string]: Function };
 
+  export const VERSION: string;
+
   export function noConflict(): typeof Handlebars;
 
   export class Exception {
diff --git a/types/test.ts b/types/test.ts
index 7a34b7eba..1ed038f6a 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -252,3 +252,7 @@ function testProtoAccessControlControlOptions() {
     }
   );
 }
+
+function testHandlebarsVersion() {
+  let version: string = Handlebars.VERSION;
+}

From d78cc73d3c51763654d66d52b5b761231f5adea9 Mon Sep 17 00:00:00 2001
From: roydukkey <roydukkey@users.noreply.github.com>
Date: Mon, 13 Jan 2020 08:30:15 -0500
Subject: [PATCH 160/191] Fixes spelling and punctuation

(cherry picked from commit fd3ca85d136d9f7f11faeda2fbcb3fd56f05cf42)
---
 release-notes.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 09ecc2a03..02fa7f54f 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -74,13 +74,13 @@ Chores, docs:
 BREAKING CHANGES:
 
 - access to prototype properties is forbidden completely by default,
-  specific properties or methods can be allow via runtime-options.
+  specific properties or methods can be allowed via runtime-options.
   See #1633 for details.
   If you are using Handlebars as documented, you should not be accessing prototype
   properties from your template anyway, so the changes should not be a problem
   for you. Only the use of undocumented features can break your build.
 
-  That is why we only bump the minor version despite mentioning breaking changes
+  That is why we only bump the minor version despite mentioning breaking changes.
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.5.3...v4.6.0)
 

From 9278f217e0033cc980c58d50e7fd4b05c8ef7c35 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 5 Feb 2020 06:10:09 +0100
Subject: [PATCH 161/191] Update release notes

---
 release-notes.md | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 02fa7f54f..7739296b7 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,25 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.2...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...master)
+
+## v4.7.3 - February 5th, 2020
+
+Chore/Housekeeping:
+
+- [#1644](https://github.com/wycats/handlebars.js/issues/1644) - Download links to aws broken on handlebarsjs.com - access denied ([@Tea56](https://api.github.com/users/Tea56))
+- Fix spelling and punctuation in changelog - d78cc73
+
+Bugfixes:
+
+- Add Type Definition for Handlebars.VERSION, Fixes #1647 - 4de51fe
+- Include Type Definition for runtime.js in Package - a32d05f
+
+Compatibility notes:
+
+- No incompatibilities are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.2...v4.7.3)
 
 ## v4.7.2 - January 13th, 2020
 

From c9789691af60b446f12f75dd9762f9d8fd3f36eb Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Wed, 5 Feb 2020 06:10:33 +0100
Subject: [PATCH 162/191] v4.7.3

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index f62ac8caf..77bdd57f1 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.2",
+  "version": "4.7.3",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 078ea8693..20d628567 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.2</version>
+		<version>4.7.3</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 0963613b1..677f79cba 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.2",
+  "version": "4.7.3",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 40f2fc561..fb61ff07d 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.2';
+export const VERSION = '4.7.3';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 3cccd3457..84a4d044b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.2",
+  "version": "4.7.3",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 2dba7eee3fa01792227c6471e4e30b967d693c6e Mon Sep 17 00:00:00 2001
From: Eli Skeggs <skeggse@users.noreply.github.com>
Date: Wed, 4 Mar 2020 15:37:42 -0800
Subject: [PATCH 163/191] docs: fix comparison link

---
 release-notes.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 7739296b7..a803bb833 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -527,7 +527,7 @@ Compatibility notes:
 - [#1285](https://github.com/wycats/handlebars.js/pull/1285) [#1284](https://github.com/wycats/handlebars.js/issues/1284) Make "column"-property of Errors enumerable ([@nknapp](https://github.com/nknapp)) - a023cb4
 - [#1285](https://github.com/wycats/handlebars.js/pull/1285) Testcase to verify that compile-errors have a column-property ([@nknapp](https://github.com/nknapp)) - c7dc353
 
-[Commits](https://github.com/lawnsea/handlebars.js/compare/v4.0.6...v4.0.7)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.0.6...v4.0.7)
 
 ## v4.0.6 - November 12th, 2016
 

From b440c38886f62bd1801b3bb2da78f1f341c2b121 Mon Sep 17 00:00:00 2001
From: Avi Vahl <avi.vahl@wix.com>
Date: Thu, 19 Mar 2020 03:40:44 +0200
Subject: [PATCH 164/191] chore: ignore external @types in tests

- some indirect dependencies install @types packages which are not compatible with the older typescript.
- adjusted test's tsconfig to not pick these up automatically, as the actual .d.ts does not depend on these external types.
---
 types/tsconfig.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/types/tsconfig.json b/types/tsconfig.json
index 86328ebb1..181b36e34 100644
--- a/types/tsconfig.json
+++ b/types/tsconfig.json
@@ -9,8 +9,9 @@
     "noEmit": true,
 
     "baseUrl": ".",
+    "types": [],
     "paths": {
       "handlebars": ["."]
     }
   }
-}
\ No newline at end of file
+}

From d79212a662d2aae106449338a28717352ec65ce6 Mon Sep 17 00:00:00 2001
From: Avi Vahl <avi.vahl@wix.com>
Date: Thu, 19 Mar 2020 03:20:30 +0200
Subject: [PATCH 165/191] fix: migrate from optimist to yargs (#1666)

closes #1658

- adapted code from master to latest yargs (`.option` calls).

```
4.x:
found 188 vulnerabilities (169 low, 4 moderate, 14 high, 1 critical) in 5815 scanned packages

4.x with this PR:
found 32 vulnerabilities (17 low, 1 moderate, 13 high, 1 critical) in 5829 scanned packages
```
---
 bin/handlebars    |  219 ++-
 package-lock.json | 4447 ++++++++++++++++++++++++---------------------
 package.json      |    4 +-
 3 files changed, 2446 insertions(+), 2224 deletions(-)

diff --git a/bin/handlebars b/bin/handlebars
index 7645adf36..fabbb3951 100755
--- a/bin/handlebars
+++ b/bin/handlebars
@@ -1,127 +1,122 @@
 #!/usr/bin/env node
 
-var optimist = require('optimist')
-    .usage('Precompile handlebar templates.\nUsage: $0 [template|directory]...', {
-      'f': {
-        'type': 'string',
-        'description': 'Output File',
-        'alias': 'output'
-      },
-      'map': {
-        'type': 'string',
-        'description': 'Source Map File'
-      },
-      'a': {
-        'type': 'boolean',
-        'description': 'Exports amd style (require.js)',
-        'alias': 'amd'
-      },
-      'c': {
-        'type': 'string',
-        'description': 'Exports CommonJS style, path to Handlebars module',
-        'alias': 'commonjs',
-        'default': null
-      },
-      'h': {
-        'type': 'string',
-        'description': 'Path to handlebar.js (only valid for amd-style)',
-        'alias': 'handlebarPath',
-        'default': ''
-      },
-      'k': {
-        'type': 'string',
-        'description': 'Known helpers',
-        'alias': 'known'
-      },
-      'o': {
-        'type': 'boolean',
-        'description': 'Known helpers only',
-        'alias': 'knownOnly'
-      },
-      'm': {
-        'type': 'boolean',
-        'description': 'Minimize output',
-        'alias': 'min'
-      },
-      'n': {
-        'type': 'string',
-        'description': 'Template namespace',
-        'alias': 'namespace',
-        'default': 'Handlebars.templates'
-      },
-      's': {
-        'type': 'boolean',
-        'description': 'Output template function only.',
-        'alias': 'simple'
-      },
-      'N': {
-        'type': 'string',
-        'description': 'Name of passed string templates. Optional if running in a simple mode. Required when operating on multiple templates.',
-        'alias': 'name'
-      },
-      'i': {
-        'type': 'string',
-        'description': 'Generates a template from the passed CLI argument.\n"-" is treated as a special value and causes stdin to be read for the template value.',
-        'alias': 'string'
-      },
-      'r': {
-        'type': 'string',
-        'description': 'Template root. Base value that will be stripped from template names.',
-        'alias': 'root'
-      },
-      'p': {
-        'type': 'boolean',
-        'description': 'Compiling a partial template',
-        'alias': 'partial'
-      },
-      'd': {
-        'type': 'boolean',
-        'description': 'Include data when compiling',
-        'alias': 'data'
-      },
-      'e': {
-        'type': 'string',
-        'description': 'Template extension.',
-        'alias': 'extension',
-        'default': 'handlebars'
-      },
-      'b': {
-        'type': 'boolean',
-        'description': 'Removes the BOM (Byte Order Mark) from the beginning of the templates.',
-        'alias': 'bom'
-      },
-      'v': {
-        'type': 'boolean',
-        'description': 'Prints the current compiler version',
-        'alias': 'version'
-      },
+const yargs = require('yargs')
+  .usage('Precompile handlebar templates.\nUsage: $0 [template|directory]...')
+  .option('f', {
+    type: 'string',
+    description: 'Output File',
+    alias: 'output'
+  })
+  .option('map', {
+    type: 'string',
+    description: 'Source Map File'
+  })
+  .option('a', {
+    type: 'boolean',
+    description: 'Exports amd style (require.js)',
+    alias: 'amd'
+  })
+  .option('c', {
+    type: 'string',
+    description: 'Exports CommonJS style, path to Handlebars module',
+    alias: 'commonjs',
+    default: null
+  })
+  .option('h', {
+    type: 'string',
+    description: 'Path to handlebar.js (only valid for amd-style)',
+    alias: 'handlebarPath',
+    default: ''
+  })
+  .option('k', {
+    type: 'string',
+    description: 'Known helpers',
+    alias: 'known'
+  })
+  .option('o', {
+    type: 'boolean',
+    description: 'Known helpers only',
+    alias: 'knownOnly'
+  })
+  .option('m', {
+    type: 'boolean',
+    description: 'Minimize output',
+    alias: 'min'
+  })
+  .option('n', {
+    type: 'string',
+    description: 'Template namespace',
+    alias: 'namespace',
+    default: 'Handlebars.templates'
+  })
+  .option('s', {
+    type: 'boolean',
+    description: 'Output template function only.',
+    alias: 'simple'
+  })
+  .option('N', {
+    type: 'string',
+    description:
+      'Name of passed string templates. Optional if running in a simple mode. Required when operating on multiple templates.',
+    alias: 'name'
+  })
+  .option('i', {
+    type: 'string',
+    description:
+      'Generates a template from the passed CLI argument.\n"-" is treated as a special value and causes stdin to be read for the template value.',
+    alias: 'string'
+  })
+  .option('r', {
+    type: 'string',
+    description:
+      'Template root. Base value that will be stripped from template names.',
+    alias: 'root'
+  })
+  .option('p', {
+    type: 'boolean',
+    description: 'Compiling a partial template',
+    alias: 'partial'
+  })
+  .option('d', {
+    type: 'boolean',
+    description: 'Include data when compiling',
+    alias: 'data'
+  })
+  .option('e', {
+    type: 'string',
+    description: 'Template extension.',
+    alias: 'extension',
+    default: 'handlebars'
+  })
+  .option('b', {
+    type: 'boolean',
+    description:
+      'Removes the BOM (Byte Order Mark) from the beginning of the templates.',
+    alias: 'bom'
+  })
+  .option('v', {
+    type: 'boolean',
+    description: 'Prints the current compiler version',
+    alias: 'version'
+  })
+  .option('help', {
+    type: 'boolean',
+    description: 'Outputs this message'
+  })
+  .wrap(120);
 
-      'help': {
-        'type': 'boolean',
-        'description': 'Outputs this message'
-      }
-    })
-
-    .wrap(120)
-    .check(function(argv) {
-      if (argv.version) {
-        return;
-      }
-    });
-
-
-var argv = optimist.argv;
+const argv = yargs.argv;
 argv.files = argv._;
 delete argv._;
 
-var Precompiler = require('../dist/cjs/precompiler');
+const Precompiler = require('../dist/cjs/precompiler');
 Precompiler.loadTemplates(argv, function(err, opts) {
   if (err) {
     throw err;
   }
 
   if (opts.help || (!opts.templates.length && !opts.version)) {
-    optimist.showHelp();
+    yargs.showHelp();
   } else {
     Precompiler.cli(opts);
   }
diff --git a/package-lock.json b/package-lock.json
index 2223f0b86..6b1f041a6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,25 +1,25 @@
 {
   "name": "handlebars",
-  "version": "4.5.3",
+  "version": "4.7.3",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.5.5",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
-      "integrity": "sha512-27d4lZoomVyo51VegxI20xZPuSHusqbQag/ztrBC7wegWoQ1nLREPVSKSW8byhTlzTKyNE4ifaTA6lCp7JjpFw==",
+      "version": "7.8.3",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.3.tgz",
+      "integrity": "sha512-a9gxpmdXtZEInkCSHUJDLHZVBgb1QS0jhss4cPP93EW7s+uC5bikET2twEF3KV+7rDblJcmNvTR7VJejqd2C2g==",
       "dev": true,
       "requires": {
-        "@babel/highlight": "^7.0.0"
+        "@babel/highlight": "^7.8.3"
       }
     },
     "@babel/generator": {
-      "version": "7.7.4",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.7.4.tgz",
-      "integrity": "sha512-m5qo2WgdOJeyYngKImbkyQrnUN1mPceaG5BV+G0E3gWsa4l/jCSryWJdM2x8OuGAOyh+3d5pVYfZWCiNFtynxg==",
+      "version": "7.8.8",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.8.8.tgz",
+      "integrity": "sha512-HKyUVu69cZoclptr8t8U5b6sx6zoWjh8jiUhnuj3MpZuKT2dJ8zPTuiy31luq32swhI0SpwItCIlU8XW7BZeJg==",
       "dev": true,
       "requires": {
-        "@babel/types": "^7.7.4",
+        "@babel/types": "^7.8.7",
         "jsesc": "^2.5.1",
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       "dev": true
     },
     "when": {
@@ -11028,7 +11283,7 @@
     "which": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
-      "integrity": "sha1-pFBD1U9YBTFtqNYvn1CRjT2nCwo=",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
       "dev": true,
       "requires": {
         "isexe": "^2.0.0"
@@ -11037,8 +11292,7 @@
     "which-module": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
-      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
-      "dev": true
+      "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
     },
     "window-size": {
       "version": "0.1.4",
@@ -11053,40 +11307,19 @@
       "dev": true
     },
     "wordwrap": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "dev": true
     },
     "wrap-ansi": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
-      "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
-      "dev": true,
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
       "requires": {
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.1"
-      },
-      "dependencies": {
-        "is-fullwidth-code-point": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
-          "dev": true,
-          "requires": {
-            "number-is-nan": "^1.0.0"
-          }
-        },
-        "string-width": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-          "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
-          "dev": true,
-          "requires": {
-            "code-point-at": "^1.0.0",
-            "is-fullwidth-code-point": "^1.0.0",
-            "strip-ansi": "^3.0.0"
-          }
-        }
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
       }
     },
     "wrappy": {
@@ -11132,16 +11365,15 @@
       "dev": true
     },
     "xtend": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
       "dev": true
     },
     "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
-      "dev": true
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
     },
     "yallist": {
       "version": "2.1.2",
@@ -11150,35 +11382,30 @@
       "dev": true
     },
     "yargs": {
-      "version": "3.27.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.27.0.tgz",
-      "integrity": "sha1-ISBUaTFuk5Ex1Z8toMbX+YIh6kA=",
-      "dev": true,
-      "requires": {
-        "camelcase": "^1.2.1",
-        "cliui": "^2.1.0",
-        "decamelize": "^1.0.0",
-        "os-locale": "^1.4.0",
-        "window-size": "^0.1.2",
-        "y18n": "^3.2.0"
+      "version": "15.3.1",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.3.1.tgz",
+      "integrity": "sha512-92O1HWEjw27sBfgmXiixJWT5hRBp2eobqXicLtPBIDBhYB+1HpwZlXmbW2luivBJHBzki+7VyCLRtAkScbTBQA==",
+      "requires": {
+        "cliui": "^6.0.0",
+        "decamelize": "^1.2.0",
+        "find-up": "^4.1.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^4.2.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^18.1.1"
       }
     },
     "yargs-parser": {
-      "version": "11.1.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-      "integrity": "sha1-h5oIZZc7yp9rq1y987HGfsfTvPQ=",
-      "dev": true,
+      "version": "18.1.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.1.tgz",
+      "integrity": "sha512-KRHEsOM16IX7XuLnMOqImcPNbLVXMNHYAoFc3BKR8Ortl5gzDbtXvvEoGx9imk5E+X1VeNKNlcHr8B8vi+7ipA==",
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
-      },
-      "dependencies": {
-        "camelcase": {
-          "version": "5.3.1",
-          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-          "integrity": "sha1-48mzFWnhBoEd8kL3FXJaH0xJQyA=",
-          "dev": true
-        }
       }
     }
   }
diff --git a/package.json b/package.json
index 84a4d044b..6108fe39a 100644
--- a/package.json
+++ b/package.json
@@ -22,8 +22,8 @@
   },
   "dependencies": {
     "neo-async": "^2.6.0",
-    "optimist": "^0.6.1",
-    "source-map": "^0.6.1"
+    "source-map": "^0.6.1",
+    "yargs": "^15.3.1"
   },
   "optionalDependencies": {
     "uglify-js": "^3.1.4"

From 80c4516fdad5d8fcb6e24faca51db97bd6cc94c5 Mon Sep 17 00:00:00 2001
From: Aori Nevo <aorinevo@gmail.com>
Date: Mon, 30 Mar 2020 19:50:59 -0400
Subject: [PATCH 166/191] chore: add unit tests for cli options (#1666)

- adds full unit tests for all cli options
- demonstrates that nothing changes between minimist and yargs except a minor order change in the --help text
- proves b9c4b253e works the same as before

Co-authored-by: fabb <fabb@users.noreply.github.com>
---
 bin/handlebars                              |   1 +
 spec/artifacts/known.helpers.handlebars     |   6 +
 spec/artifacts/non.default.extension.hbs    |   1 +
 spec/artifacts/partial.template.handlebars  |   1 +
 spec/artifacts/source.map.amd.txt           |   1 +
 spec/expected/bom.amd.js                    |   6 +
 spec/expected/compiled.string.txt           |   3 +
 spec/expected/empty.amd.min.js              |   1 +
 spec/expected/empty.amd.namespace.js        |   6 +
 spec/expected/empty.amd.simple.js           |   3 +
 spec/expected/empty.common.js               |   6 +
 spec/expected/empty.name.amd.js             |  10 +
 spec/expected/empty.root.amd.js             |   6 +
 spec/expected/handlebar.path.amd.js         |   6 +
 spec/expected/help.menu.txt                 |  25 +++
 spec/expected/namespace.amd.js              |  10 +
 spec/expected/non.default.extension.amd.js  |   6 +
 spec/expected/non.empty.amd.known.helper.js |  24 +++
 spec/expected/partial.template.js           |   6 +
 spec/expected/source.map.amd.js             |   2 +
 spec/precompiler.js                         |   5 +-
 tasks/test-bin.js                           | 213 +++++++++++++++++++-
 22 files changed, 335 insertions(+), 13 deletions(-)
 create mode 100644 spec/artifacts/known.helpers.handlebars
 create mode 100644 spec/artifacts/non.default.extension.hbs
 create mode 100644 spec/artifacts/partial.template.handlebars
 create mode 100644 spec/artifacts/source.map.amd.txt
 create mode 100644 spec/expected/bom.amd.js
 create mode 100644 spec/expected/compiled.string.txt
 create mode 100644 spec/expected/empty.amd.min.js
 create mode 100644 spec/expected/empty.amd.namespace.js
 create mode 100644 spec/expected/empty.amd.simple.js
 create mode 100644 spec/expected/empty.common.js
 create mode 100644 spec/expected/empty.name.amd.js
 create mode 100644 spec/expected/empty.root.amd.js
 create mode 100644 spec/expected/handlebar.path.amd.js
 create mode 100644 spec/expected/help.menu.txt
 create mode 100644 spec/expected/namespace.amd.js
 create mode 100644 spec/expected/non.default.extension.amd.js
 create mode 100644 spec/expected/non.empty.amd.known.helper.js
 create mode 100644 spec/expected/partial.template.js
 create mode 100644 spec/expected/source.map.amd.js

diff --git a/bin/handlebars b/bin/handlebars
index fabbb3951..17a36609d 100755
--- a/bin/handlebars
+++ b/bin/handlebars
@@ -111,6 +111,7 @@ delete argv._;
 
 const Precompiler = require('../dist/cjs/precompiler');
 Precompiler.loadTemplates(argv, function(err, opts) {
+
   if (err) {
     throw err;
   }
diff --git a/spec/artifacts/known.helpers.handlebars b/spec/artifacts/known.helpers.handlebars
new file mode 100644
index 000000000..74ab9d47b
--- /dev/null
+++ b/spec/artifacts/known.helpers.handlebars
@@ -0,0 +1,6 @@
+{{#someHelper true}}
+ <div>Some known helper</div>
+    {{#anotherHelper true}}
+    <div>Another known helper</div>
+    {{/anotherHelper}}
+{{/someHelper}}
diff --git a/spec/artifacts/non.default.extension.hbs b/spec/artifacts/non.default.extension.hbs
new file mode 100644
index 000000000..9c3af95fc
--- /dev/null
+++ b/spec/artifacts/non.default.extension.hbs
@@ -0,0 +1 @@
+<div>This is a test</div>
\ No newline at end of file
diff --git a/spec/artifacts/partial.template.handlebars b/spec/artifacts/partial.template.handlebars
new file mode 100644
index 000000000..f99ae8ebc
--- /dev/null
+++ b/spec/artifacts/partial.template.handlebars
@@ -0,0 +1 @@
+<div>Test Partial</div>
\ No newline at end of file
diff --git a/spec/artifacts/source.map.amd.txt b/spec/artifacts/source.map.amd.txt
new file mode 100644
index 000000000..88c18f847
--- /dev/null
+++ b/spec/artifacts/source.map.amd.txt
@@ -0,0 +1 @@
+{"version":3,"sources":["test"],"names":["compiler","main","container","depth0","helpers","partials","data","useData"],"mappings":"kHAAA,CAAAA,SAAA,CAAA,EAAA,YAAAC,KAAA,SAAAC,EAAAC,EAAAC,EAAAC,EAAAC,GAAA,MAAA,gBAAAC,SAAA"}
\ No newline at end of file
diff --git a/spec/expected/bom.amd.js b/spec/expected/bom.amd.js
new file mode 100644
index 000000000..906989feb
--- /dev/null
+++ b/spec/expected/bom.amd.js
@@ -0,0 +1,6 @@
+define(['handlebars.runtime'], function(Handlebars) {
+    Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+  return templates['bom'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "a";
+  },"useData":true});
+  });
\ No newline at end of file
diff --git a/spec/expected/compiled.string.txt b/spec/expected/compiled.string.txt
new file mode 100644
index 000000000..8b1a14d8c
--- /dev/null
+++ b/spec/expected/compiled.string.txt
@@ -0,0 +1,3 @@
+{"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "<div>Test String</div>";
+},"useData":true}
\ No newline at end of file
diff --git a/spec/expected/empty.amd.min.js b/spec/expected/empty.amd.min.js
new file mode 100644
index 000000000..8fc31a610
--- /dev/null
+++ b/spec/expected/empty.amd.min.js
@@ -0,0 +1 @@
+define(["handlebars.runtime"],function(e){var t=(e=e.default).template;return(e.templates=e.templates||{}).empty=t({compiler:[8,">= 4.3.0"],main:function(e,t,a,n,r){return""},useData:!0})});
\ No newline at end of file
diff --git a/spec/expected/empty.amd.namespace.js b/spec/expected/empty.amd.namespace.js
new file mode 100644
index 000000000..1972fb437
--- /dev/null
+++ b/spec/expected/empty.amd.namespace.js
@@ -0,0 +1,6 @@
+define(['handlebars.runtime'], function(Handlebars) {
+  Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = CustomNamespace.templates = CustomNamespace.templates || {};
+return templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "";
+},"useData":true});
+});
diff --git a/spec/expected/empty.amd.simple.js b/spec/expected/empty.amd.simple.js
new file mode 100644
index 000000000..b4014bb83
--- /dev/null
+++ b/spec/expected/empty.amd.simple.js
@@ -0,0 +1,3 @@
+{"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+  return "";
+},"useData":true}
\ No newline at end of file
diff --git a/spec/expected/empty.common.js b/spec/expected/empty.common.js
new file mode 100644
index 000000000..099f2f2de
--- /dev/null
+++ b/spec/expected/empty.common.js
@@ -0,0 +1,6 @@
+(function() {
+  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "";
+},"useData":true});
+})();
\ No newline at end of file
diff --git a/spec/expected/empty.name.amd.js b/spec/expected/empty.name.amd.js
new file mode 100644
index 000000000..13c377f64
--- /dev/null
+++ b/spec/expected/empty.name.amd.js
@@ -0,0 +1,10 @@
+define(['handlebars.runtime'], function(Handlebars) {
+  Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+templates['firstTemplate'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "<div>1</div>";
+},"useData":true});
+templates['secondTemplate'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "<div>2</div>";
+},"useData":true});
+return templates;
+});
\ No newline at end of file
diff --git a/spec/expected/empty.root.amd.js b/spec/expected/empty.root.amd.js
new file mode 100644
index 000000000..11ea55d5a
--- /dev/null
+++ b/spec/expected/empty.root.amd.js
@@ -0,0 +1,6 @@
+define(['handlebars.runtime'], function(Handlebars) {
+  Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+return templates['artifacts/partial.template'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+    return "<div>Test Partial</div>";
+},"useData":true});
+});
\ No newline at end of file
diff --git a/spec/expected/handlebar.path.amd.js b/spec/expected/handlebar.path.amd.js
new file mode 100644
index 000000000..b3aa1f08a
--- /dev/null
+++ b/spec/expected/handlebar.path.amd.js
@@ -0,0 +1,6 @@
+define(['some-path/handlebars.runtime'], function(Handlebars) {
+    Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+  return templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "";
+  },"useData":true});
+  });
\ No newline at end of file
diff --git a/spec/expected/help.menu.txt b/spec/expected/help.menu.txt
new file mode 100644
index 000000000..027bb73a7
--- /dev/null
+++ b/spec/expected/help.menu.txt
@@ -0,0 +1,25 @@
+Precompile handlebar templates.
+Usage: handlebars [template|directory]...
+
+Options:
+  --help               Outputs this message                                                                    [boolean]
+  -f, --output         Output File                                                                              [string]
+  --map                Source Map File                                                                          [string]
+  -a, --amd            Exports amd style (require.js)                                                          [boolean]
+  -c, --commonjs       Exports CommonJS style, path to Handlebars module                        [string] [default: null]
+  -h, --handlebarPath  Path to handlebar.js (only valid for amd-style)                            [string] [default: ""]
+  -k, --known          Known helpers                                                                            [string]
+  -o, --knownOnly      Known helpers only                                                                      [boolean]
+  -m, --min            Minimize output                                                                         [boolean]
+  -n, --namespace      Template namespace                                     [string] [default: "Handlebars.templates"]
+  -s, --simple         Output template function only.                                                          [boolean]
+  -N, --name           Name of passed string templates. Optional if running in a simple mode. Required when operating on
+                       multiple templates.                                                                      [string]
+  -i, --string         Generates a template from the passed CLI argument.
+                       "-" is treated as a special value and causes stdin to be read for the template value.    [string]
+  -r, --root           Template root. Base value that will be stripped from template names.                     [string]
+  -p, --partial        Compiling a partial template                                                            [boolean]
+  -d, --data           Include data when compiling                                                             [boolean]
+  -e, --extension      Template extension.                                              [string] [default: "handlebars"]
+  -b, --bom            Removes the BOM (Byte Order Mark) from the beginning of the templates.                  [boolean]
+  -v, --version        Show version number                                                                     [boolean]
\ No newline at end of file
diff --git a/spec/expected/namespace.amd.js b/spec/expected/namespace.amd.js
new file mode 100644
index 000000000..cdd91f0df
--- /dev/null
+++ b/spec/expected/namespace.amd.js
@@ -0,0 +1,10 @@
+define(['handlebars.runtime'], function(Handlebars) {
+    Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = someNameSpace = someNameSpace || {};
+  templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "";
+  },"useData":true});
+  templates['empty'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "";
+  },"useData":true});
+  return templates;
+  });
\ No newline at end of file
diff --git a/spec/expected/non.default.extension.amd.js b/spec/expected/non.default.extension.amd.js
new file mode 100644
index 000000000..264499a7c
--- /dev/null
+++ b/spec/expected/non.default.extension.amd.js
@@ -0,0 +1,6 @@
+define(['handlebars.runtime'], function(Handlebars) {
+    Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+  return templates['non.default.extension'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "<div>This is a test</div>";
+  },"useData":true});
+  });
\ No newline at end of file
diff --git a/spec/expected/non.empty.amd.known.helper.js b/spec/expected/non.empty.amd.known.helper.js
new file mode 100644
index 000000000..75c81cdce
--- /dev/null
+++ b/spec/expected/non.empty.amd.known.helper.js
@@ -0,0 +1,24 @@
+define(['handlebars.runtime'], function(Handlebars) {
+Handlebars = Handlebars["default"]; var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+return templates['known.helpers'] = template({"1":function(container,depth0,helpers,partials,data) {
+var stack1, lookupProperty = container.lookupProperty || function(parent, propertyName) {
+if (Object.prototype.hasOwnProperty.call(parent, propertyName)) {
+return parent[propertyName];
+}
+return undefined
+};
+return " <div>Some known helper</div>\n" 
++ ((stack1 = lookupProperty(helpers,"anotherHelper").call(depth0 != null ? depth0 : (container.nullContext || {}),true,{"name":"anotherHelper","hash":{},"fn":container.program(2, data, 0),"inverse":container.noop,"data":data,"loc":{"start":{"line":3,"column":4},"end":{"line":5,"column":22}}})) != null ? stack1 : "");
+},"2":function(container,depth0,helpers,partials,data) {
+return " <div>Another known helper</div>\n";
+},"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+var stack1, lookupProperty = container.lookupProperty || function(parent, propertyName) {
+if (Object.prototype.hasOwnProperty.call(parent, propertyName)) {
+return parent[propertyName];
+}
+return undefined
+};
+return ((stack1 = lookupProperty(helpers,"someHelper").call(depth0 != null ? depth0 : (container.nullContext || {}),true,{"name":"someHelper","hash":{},"fn":container.program(1, data, 0),"inverse":container.noop,"data":data,"loc":{"start":{"line":1,"column":0},"end":{"line":6,"column":15}}})) != null ? stack1 : "");
+},"useData":true});
+});
+    
\ No newline at end of file
diff --git a/spec/expected/partial.template.js b/spec/expected/partial.template.js
new file mode 100644
index 000000000..e73aaa1d7
--- /dev/null
+++ b/spec/expected/partial.template.js
@@ -0,0 +1,6 @@
+define(['handlebars.runtime'], function(Handlebars) {
+    Handlebars = Handlebars["default"];  var template = Handlebars.template, templates = Handlebars.templates = Handlebars.templates || {};
+  return Handlebars.partials['partial.template'] = template({"compiler":[8,">= 4.3.0"],"main":function(container,depth0,helpers,partials,data) {
+      return "<div>Test Partial</div>";
+  },"useData":true});
+  });
\ No newline at end of file
diff --git a/spec/expected/source.map.amd.js b/spec/expected/source.map.amd.js
new file mode 100644
index 000000000..1f010db73
--- /dev/null
+++ b/spec/expected/source.map.amd.js
@@ -0,0 +1,2 @@
+define(["handlebars.runtime"],function(e){var t=(e=e.default).template;return(e.templates=e.templates||{}).test=t({compiler:[8,">= 4.3.0"],main:function(e,t,a,n,i){return"<div>1</div>"},useData:!0})});
+//# sourceMappingURL=./spec/artifacts/source.map.amd.txt
\ No newline at end of file
diff --git a/spec/precompiler.js b/spec/precompiler.js
index 2261023cc..c668e9156 100644
--- a/spec/precompiler.js
+++ b/spec/precompiler.js
@@ -307,8 +307,9 @@ describe('precompiler', function() {
       Precompiler.loadTemplates(
         { files: [__dirname + '/artifacts'], extension: 'hbs' },
         function(err, opts) {
-          equal(opts.templates.length, 1);
+          equal(opts.templates.length, 2);
           equal(opts.templates[0].name, 'example_2');
+
           done(err);
         }
       );
@@ -317,7 +318,7 @@ describe('precompiler', function() {
       Precompiler.loadTemplates(
         { files: [__dirname + '/artifacts'], extension: 'handlebars' },
         function(err, opts) {
-          equal(opts.templates.length, 3);
+          equal(opts.templates.length, 5);
           equal(opts.templates[0].name, 'bom');
           equal(opts.templates[1].name, 'empty');
           equal(opts.templates[2].name, 'example_1');
diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index 3a9c43095..d002c133b 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -7,22 +7,213 @@ const chai = require('chai');
 chai.use(require('chai-diff'));
 const expect = chai.expect;
 
-module.exports = function(grunt) {
-  grunt.registerTask('test:bin', function() {
-    const stdout = executeBinHandlebars(
+const testCases = [
+  {
+    binInputParameters: ['-a', 'spec/artifacts/empty.handlebars'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.amd.js'
+  },
+  {
+    binInputParameters: [
       '-a',
+      '-f',
+      'TEST_OUTPUT',
       'spec/artifacts/empty.handlebars'
-    );
+    ],
+    outputLocation: 'TEST_OUTPUT',
+    expectedOutputSpec: './spec/expected/empty.amd.js'
+  },
+  {
+    binInputParameters: [
+      '-a',
+      '-n',
+      'CustomNamespace.templates',
+      'spec/artifacts/empty.handlebars'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.amd.namespace.js'
+  },
+  {
+    binInputParameters: [
+      '-a',
+      '--namespace',
+      'CustomNamespace.templates',
+      'spec/artifacts/empty.handlebars'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.amd.namespace.js'
+  },
+  {
+    binInputParameters: ['-a', '-s', 'spec/artifacts/empty.handlebars'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.amd.simple.js'
+  },
+  {
+    binInputParameters: ['-a', '-m', 'spec/artifacts/empty.handlebars'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.amd.min.js'
+  },
+  {
+    binInputParameters: [
+      'spec/artifacts/known.helpers.handlebars',
+      '-a',
+      '-k',
+      'someHelper',
+      '-k',
+      'anotherHelper',
+      '-o'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/non.empty.amd.known.helper.js'
+  },
+  {
+    binInputParameters: ['--help'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/help.menu.txt'
+  },
+  {
+    binInputParameters: ['-v'],
+    outputLocation: 'stdout',
+    expectedOutput: require('../package.json').version
+  },
+  {
+    binInputParameters: [
+      '-a',
+      '-e',
+      'hbs',
+      './spec/artifacts/non.default.extension.hbs'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/non.default.extension.amd.js'
+  },
+  {
+    binInputParameters: [
+      '-a',
+      '-p',
+      './spec/artifacts/partial.template.handlebars'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/partial.template.js'
+  },
+  {
+    binInputParameters: ['spec/artifacts/empty.handlebars', '-c'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.common.js'
+  },
+  {
+    binInputParameters: [
+      'spec/artifacts/empty.handlebars',
+      'spec/artifacts/empty.handlebars',
+      '-a',
+      '-n',
+      'someNameSpace'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/namespace.amd.js'
+  },
+  {
+    binInputParameters: [
+      'spec/artifacts/empty.handlebars',
+      '-h',
+      'some-path/',
+      '-a'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/handlebar.path.amd.js'
+  },
+  {
+    binInputParameters: [
+      'spec/artifacts/partial.template.handlebars',
+      '-r',
+      'spec',
+      '-a'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.root.amd.js'
+  },
+  {
+    binInputParameters: [
+      '-i',
+      '<div>1</div>',
+      '-i',
+      '<div>2</div>',
+      '-N',
+      'firstTemplate',
+      '-N',
+      'secondTemplate',
+      '-a'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/empty.name.amd.js'
+  },
+  {
+    binInputParameters: [
+      '-i',
+      '<div>1</div>',
+      '-a',
+      '-m',
+      '-N',
+      'test',
+      '--map',
+      './spec/artifacts/source.map.amd.txt'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/source.map.amd.js'
+  },
+  {
+    binInputParameters: [
+      '-i',
+      '<div>1</div>',
+      '-a',
+      '-m',
+      '-N',
+      'test',
+      '--map',
+      './spec/artifacts/source.map.amd.txt'
+    ],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/source.map.amd.js'
+  },
+  {
+    binInputParameters: ['./spec/artifacts/bom.handlebars', '-b', '-a'],
+    outputLocation: 'stdout',
+    expectedOutputSpec: './spec/expected/bom.amd.js'
+  }
+];
 
-    const expectedOutput = fs.readFileSync(
-      './spec/expected/empty.amd.js',
-      'utf-8'
-    );
+module.exports = function(grunt) {
+  grunt.registerTask('test:bin', function() {
+    testCases.forEach(
+      ({
+        binInputParameters,
+        outputLocation,
+        expectedOutputSpec,
+        expectedOutput
+      }) => {
+        const stdout = executeBinHandlebars(...binInputParameters);
+
+        if (!expectedOutput && expectedOutputSpec) {
+          expectedOutput = fs.readFileSync(expectedOutputSpec, 'utf-8');
+        }
 
-    const normalizedOutput = normalizeCrlf(stdout);
-    const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
+        const useStdout = outputLocation === 'stdout';
+        const normalizedOutput = normalizeCrlf(
+          useStdout ? stdout : fs.readFileSync(outputLocation, 'utf-8')
+        );
+        const normalizedExpectedOutput = normalizeCrlf(expectedOutput);
 
-    expect(normalizedOutput).not.to.be.differentFrom(normalizedExpectedOutput);
+        if (!useStdout) {
+          fs.unlinkSync(outputLocation);
+        }
+
+        expect(normalizedOutput).not.to.be.differentFrom(
+          normalizedExpectedOutput,
+          {
+            relaxedSpace: true
+          }
+        );
+      }
+    );
   });
 };
 

From 738391a0640be447a3ca843031b95ab943adbc6c Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <github.erisds@gmail.com>
Date: Tue, 31 Mar 2020 17:04:46 +0100
Subject: [PATCH 167/191] Update release-notes.md

---
 release-notes.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index a803bb833..2fd9ff240 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,19 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...master)
+
+## v4.7.4 - March 31st, 2020
+
+Chore/Housekeeping:
+
+- [#1666](https://github.com/wycats/handlebars.js/issues/1666) - Replaced minimist with yargs for handlebars CLI ([@aorinevo](https://api.github.com/users/aorinevo), [@AviVahl](https://api.github.com/users/AviVahl) & [@fabb](https://api.github.com/users/fabb))
+
+Compatibility notes:
+
+- No incompatibilities are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...v4.7.4)
 
 ## v4.7.3 - February 5th, 2020
 

From c491b4ea2560625cb5bf3d6c90c76f4f1a3ff9d1 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Wed, 1 Apr 2020 17:21:20 +0100
Subject: [PATCH 168/191] Revert "Update release-notes.md"

This reverts commit 738391a0640be447a3ca843031b95ab943adbc6c.
Think this needs to be left to the release tool :|
---
 release-notes.md | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 2fd9ff240..a803bb833 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,19 +2,7 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...master)
-
-## v4.7.4 - March 31st, 2020
-
-Chore/Housekeeping:
-
-- [#1666](https://github.com/wycats/handlebars.js/issues/1666) - Replaced minimist with yargs for handlebars CLI ([@aorinevo](https://api.github.com/users/aorinevo), [@AviVahl](https://api.github.com/users/AviVahl) & [@fabb](https://api.github.com/users/fabb))
-
-Compatibility notes:
-
-- No incompatibilities are to be expected
-
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...v4.7.4)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...master)
 
 ## v4.7.3 - February 5th, 2020
 

From e46baa1fe23b3a1bee07b085e48700c090218b25 Mon Sep 17 00:00:00 2001
From: DeeDeeG <DeeDeeG@users.noreply.github.com>
Date: Tue, 31 Mar 2020 15:14:17 -0400
Subject: [PATCH 169/191] tasks/test-bin.js: Delete duplicate test

Per comment by @ErisDS on the GitHub PR:
https://github.com/wycats/handlebars.js/pull/1666#issuecomment-606805248
---
 tasks/test-bin.js | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index d002c133b..306dfb230 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -160,20 +160,6 @@ const testCases = [
     outputLocation: 'stdout',
     expectedOutputSpec: './spec/expected/source.map.amd.js'
   },
-  {
-    binInputParameters: [
-      '-i',
-      '<div>1</div>',
-      '-a',
-      '-m',
-      '-N',
-      'test',
-      '--map',
-      './spec/artifacts/source.map.amd.txt'
-    ],
-    outputLocation: 'stdout',
-    expectedOutputSpec: './spec/expected/source.map.amd.js'
-  },
   {
     binInputParameters: ['./spec/artifacts/bom.handlebars', '-b', '-a'],
     outputLocation: 'stdout',

From 4671c4b38329d334164fd05334bcca3a531b8c35 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Wed, 1 Apr 2020 18:04:14 +0100
Subject: [PATCH 170/191] Use tmp directory for files written during tests

- Add spec/tmp directory with .gitkeep file to indicate the folder is intentional
- Add the folder contents to .gitignore
- Use this folder to output the sourcemap file during bin tests. This file is a sideeffect of the main test
---
 .gitignore                        | 1 +
 spec/artifacts/source.map.amd.txt | 1 -
 spec/expected/source.map.amd.js   | 2 +-
 spec/tmp/.gitkeep                 | 1 +
 tasks/test-bin.js                 | 2 +-
 5 files changed, 4 insertions(+), 3 deletions(-)
 delete mode 100644 spec/artifacts/source.map.amd.txt
 create mode 100644 spec/tmp/.gitkeep

diff --git a/.gitignore b/.gitignore
index 59019b37d..97e44f885 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@ lib/handlebars/compiler/parser.js
 /coverage/
 /dist/
 /integration-testing/*/dist/
+/spec/tmp/*
\ No newline at end of file
diff --git a/spec/artifacts/source.map.amd.txt b/spec/artifacts/source.map.amd.txt
deleted file mode 100644
index 88c18f847..000000000
--- a/spec/artifacts/source.map.amd.txt
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"sources":["test"],"names":["compiler","main","container","depth0","helpers","partials","data","useData"],"mappings":"kHAAA,CAAAA,SAAA,CAAA,EAAA,YAAAC,KAAA,SAAAC,EAAAC,EAAAC,EAAAC,EAAAC,GAAA,MAAA,gBAAAC,SAAA"}
\ No newline at end of file
diff --git a/spec/expected/source.map.amd.js b/spec/expected/source.map.amd.js
index 1f010db73..cb00a651a 100644
--- a/spec/expected/source.map.amd.js
+++ b/spec/expected/source.map.amd.js
@@ -1,2 +1,2 @@
 define(["handlebars.runtime"],function(e){var t=(e=e.default).template;return(e.templates=e.templates||{}).test=t({compiler:[8,">= 4.3.0"],main:function(e,t,a,n,i){return"<div>1</div>"},useData:!0})});
-//# sourceMappingURL=./spec/artifacts/source.map.amd.txt
\ No newline at end of file
+//# sourceMappingURL=./spec/tmp/source.map.amd.txt
\ No newline at end of file
diff --git a/spec/tmp/.gitkeep b/spec/tmp/.gitkeep
new file mode 100644
index 000000000..f534490ec
--- /dev/null
+++ b/spec/tmp/.gitkeep
@@ -0,0 +1 @@
+This directory is ignored in .gitignore. It can be used to write temporary files during tests.
\ No newline at end of file
diff --git a/tasks/test-bin.js b/tasks/test-bin.js
index 306dfb230..58dfab042 100644
--- a/tasks/test-bin.js
+++ b/tasks/test-bin.js
@@ -155,7 +155,7 @@ const testCases = [
       '-N',
       'test',
       '--map',
-      './spec/artifacts/source.map.amd.txt'
+      './spec/tmp/source.map.amd.txt'
     ],
     outputLocation: 'stdout',
     expectedOutputSpec: './spec/expected/source.map.amd.js'

From 9dd8d10e126ef770ca00dac0720864acfd16e17e Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Wed, 1 Apr 2020 18:19:34 +0100
Subject: [PATCH 171/191] Update release notes

---
 release-notes.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index a803bb833..ad3dce627 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,19 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...master)
+
+## v4.7.4 - April 1st, 2020
+
+Chore/Housekeeping:
+
+- [#1666](https://github.com/wycats/handlebars.js/issues/1666) - Replaced minimist with yargs for handlebars CLI ([@aorinevo](https://api.github.com/users/aorinevo), [@AviVahl](https://api.github.com/users/AviVahl) & [@fabb](https://api.github.com/users/fabb))
+
+Compatibility notes:
+
+- No incompatibilities are to be expected
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.3...v4.7.4)
 
 ## v4.7.3 - February 5th, 2020
 

From 7adc19ab40917389fc1372d19677f1d024ec42b1 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Wed, 1 Apr 2020 18:20:30 +0100
Subject: [PATCH 172/191] v4.7.4

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 77bdd57f1..5cb15f075 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.3",
+  "version": "4.7.4",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 20d628567..dc4b1bdb9 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.3</version>
+		<version>4.7.4</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 677f79cba..81b90aa52 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.3",
+  "version": "4.7.4",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index fb61ff07d..20c75972f 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.3';
+export const VERSION = '4.7.4';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 6108fe39a..6a0a1da93 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.3",
+  "version": "4.7.4",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From b454b02147cf229730e87634bb93147879fa9923 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 2 Apr 2020 14:09:27 +0200
Subject: [PATCH 173/191] docs: update release-docs in CONTRIBUTING.md

- remove ember testing
- add docs for updating the website.
- add list of required accesses to publish
---
 CONTRIBUTING.md | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d26df5ca9..5386e6a23 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -89,21 +89,15 @@ You can use the following scripts to make sure that the travis-job does not fail
 - **npm run integration-test** will run integration tests (using old NodeJS versions and integrations with webpack, babel and so on)
   These tests only work on a Linux-machine with `nvm` installed (for running tests in multiple versions of NodeJS).
 
-## Ember testing
-
-The current ember distribution should be tested as part of the handlebars release process. This requires building the `handlebars-source` gem locally and then executing the ember test script.
-
-```sh
-npm link
-grunt build release
-cp dist/*.js $emberRepoDir/bower_components/handlebars/
+## Releasing the latest version
 
-cd $emberRepoDir
-npm link handlebars
-npm test
-```
+Before attempting the release Handlebars, please make sure that you have the following authorizations:
 
-## Releasing the latest version
+- Push-access to `wycats/handlebars.js`
+- Publishing rights on npmjs.com for the `handlebars` package
+- Publishing rights on gemfury for the `handlebars-source` package
+- Push-access to the repo for legacy package managers: `components/handlebars`
+- Push-access to the production-repo of the handlebars site: `handlebars-lang/handlebarsjs.com-github-pages`
 
 _When releasing a previous version of Handlebars, please look into the CONTRIBUNG.md in the corresponding branch._
 
@@ -130,7 +124,13 @@ in those places still point to the latest version
 - [The AWS S3 Bucket](https://s3.amazonaws.com/builds.handlebarsjs.com) (check latest-tag)
 - [RubyGems](https://rubygems.org/gems/handlebars-source)
 
-When everything is OK, the handlebars site needs to be updated to point to the new version numbers. The jsfiddle link should be updated to point to the most recent distribution for all instances in our documentation.
+When everything is OK, the **handlebars site** needs to be updated.
+
+Go to the master branch of the repo [handlebars-lang/handlebarsjs.com-github-pages](https://github.com/handlebars-lang/handlebarsjs.com-github-pages/tree/master)
+and make a minimal change to the README. This will invoke a github-action that redeploys
+the site, fetching the latest version-number from the npm-registry.
+(note that the default-branch of this repo is not the master and regular changes are done
+in the `handlebars-lang/docs`-repo).
 
 [generator-release]: https://github.com/walmartlabs/generator-release
 [pull-request]: https://github.com/wycats/handlebars.js/pull/new/master

From 645ac73844918668f9a2f41e49b7cb18ce5abf36 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <github@knappi.org>
Date: Thu, 2 Apr 2020 08:39:51 +0200
Subject: [PATCH 174/191] test: fix integration tests

- They should fail, if any test fails
- Use "set -e" instead of "|| exit 1", because it suffices to be specified
  at the top of each file
---
 integration-testing/multi-nodejs-test/test.sh |  6 ++++--
 integration-testing/run-integration-tests.sh  | 10 ++++++----
 package-lock.json                             |  2 +-
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index db2caf854..99682b453 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -e
+
 cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 # shellcheck disable=SC1090
 [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
@@ -20,8 +22,8 @@ for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
     mkdir target
     nvm install "$i"
     nvm exec "$i" npm install
-    nvm exec "$i" npm run test || exit 1
-    nvm exec "$i" npm run test-precompile || exit 1
+    nvm exec "$i" npm run test
+    nvm exec "$i" npm run test-precompile
 
     echo Success
 done
diff --git a/integration-testing/run-integration-tests.sh b/integration-testing/run-integration-tests.sh
index dd6e72764..56e9c3ad1 100755
--- a/integration-testing/run-integration-tests.sh
+++ b/integration-testing/run-integration-tests.sh
@@ -1,13 +1,15 @@
 #!/bin/bash
 
-cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
+set -e
+
+cd "$( dirname "$( readlink -f "$0" )" )"
 
 for i in */test.sh ; do
   (
     echo "----------------------------------------"
     echo "-- Running integration test: $i"
     echo "----------------------------------------"
-    cd "$( dirname "$i" )" || exit 1
-    ./test.sh || exit 1
+    cd "$( dirname "$i" )"
+    ./test.sh
   )
-done
\ No newline at end of file
+done
diff --git a/package-lock.json b/package-lock.json
index 6b1f041a6..24aa5a508 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.3",
+  "version": "4.7.4",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

From 309d2b49a11628d2a8f052c5587e7459968cd705 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Thu, 2 Apr 2020 19:15:33 +0100
Subject: [PATCH 175/191] chore: set Node.js compatibility to v6+

- drop support for versions less than Node v6 via engines
- update integration tests to also test newer versions
---
 README.markdown                               | 2 +-
 integration-testing/multi-nodejs-test/test.sh | 2 +-
 package.json                                  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.markdown b/README.markdown
index 5450f9cd2..2b49bca56 100644
--- a/README.markdown
+++ b/README.markdown
@@ -79,7 +79,7 @@ Supported Environments
 
 Handlebars has been designed to work in any ECMAScript 3 environment. This includes
 
-- Node.js
+- Node.js v6+
 - Chrome
 - Firefox
 - Safari 5+
diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index 99682b453..d38b14ffa 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -17,7 +17,7 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 unset npm_config_prefix
 
 echo "Handlebars should be able to run in various versions of NodeJS"
-for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
+for i in 6 7 8 9 10 11 12 13; do
     rm target node_modules package-lock.json -rf
     mkdir target
     nvm install "$i"
diff --git a/package.json b/package.json
index 6a0a1da93..223011a61 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "license": "MIT",
   "readmeFilename": "README.md",
   "engines": {
-    "node": ">=0.4.7"
+    "node": ">=6"
   },
   "dependencies": {
     "neo-async": "^2.6.0",

From 16487a088e13f4d52c6fd6610b9ec71c4a51be8a Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Thu, 2 Apr 2020 19:02:56 +0100
Subject: [PATCH 176/191] chore: downgrade yargs to v14

- allows us to support Node v6 and v8 for now
---
 package-lock.json | 225 ++++++++++++++++++++++++++++++++++++++++------
 package.json      |   2 +-
 2 files changed, 198 insertions(+), 29 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 24aa5a508..28754a927 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -265,7 +265,8 @@
     "@types/color-name": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
-      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
+      "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ==",
+      "dev": true
     },
     "@types/events": {
       "version": "3.0.0",
@@ -427,12 +428,14 @@
     "ansi-regex": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
-      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg=="
+      "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+      "dev": true
     },
     "ansi-styles": {
       "version": "4.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
       "integrity": "sha512-9VGjrMsG1vePxcSweQsN20KY/c4zN0h9fLjqAbwbPfahM3t+NL+M9HC8xeXG2I8pX5NoamTGNuomEUFI7fcUjA==",
+      "dev": true,
       "requires": {
         "@types/color-name": "^1.1.1",
         "color-convert": "^2.0.1"
@@ -1646,13 +1649,48 @@
       "dev": true
     },
     "cliui": {
-      "version": "6.0.0",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-6.0.0.tgz",
-      "integrity": "sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
+      "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
       "requires": {
-        "string-width": "^4.2.0",
-        "strip-ansi": "^6.0.0",
-        "wrap-ansi": "^6.2.0"
+        "string-width": "^3.1.0",
+        "strip-ansi": "^5.2.0",
+        "wrap-ansi": "^5.1.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg=="
+        },
+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
       }
     },
     "clone": {
@@ -1687,6 +1725,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+      "dev": true,
       "requires": {
         "color-name": "~1.1.4"
       }
@@ -1694,7 +1733,8 @@
     "color-name": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "dev": true
     },
     "colors": {
       "version": "1.1.2",
@@ -2894,7 +2934,8 @@
     "emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
-      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A=="
+      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+      "dev": true
     },
     "emojis-list": {
       "version": "2.1.0",
@@ -3739,6 +3780,7 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
       "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "dev": true,
       "requires": {
         "locate-path": "^5.0.0",
         "path-exists": "^4.0.0"
@@ -5736,7 +5778,8 @@
     "is-fullwidth-code-point": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
-      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg=="
+      "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
+      "dev": true
     },
     "is-glob": {
       "version": "2.0.1",
@@ -6916,6 +6959,7 @@
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
       "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "dev": true,
       "requires": {
         "p-locate": "^4.1.0"
       }
@@ -8306,6 +8350,7 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
       "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "dev": true,
       "requires": {
         "p-limit": "^2.2.0"
       }
@@ -8417,7 +8462,8 @@
     "path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
-      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="
+      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+      "dev": true
     },
     "path-is-absolute": {
       "version": "1.0.1",
@@ -10198,6 +10244,7 @@
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
       "integrity": "sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==",
+      "dev": true,
       "requires": {
         "emoji-regex": "^8.0.0",
         "is-fullwidth-code-point": "^3.0.0",
@@ -10248,6 +10295,7 @@
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
       "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+      "dev": true,
       "requires": {
         "ansi-regex": "^5.0.0"
       }
@@ -11313,13 +11361,69 @@
       "dev": true
     },
     "wrap-ansi": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
-      "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+      "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
       "requires": {
-        "ansi-styles": "^4.0.0",
-        "string-width": "^4.1.0",
-        "strip-ansi": "^6.0.0"
+        "ansi-styles": "^3.2.0",
+        "string-width": "^3.0.0",
+        "strip-ansi": "^5.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg=="
+        },
+        "ansi-styles": {
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+          "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+          "requires": {
+            "color-convert": "^1.9.0"
+          }
+        },
+        "color-convert": {
+          "version": "1.9.3",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+          "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+          "requires": {
+            "color-name": "1.1.3"
+          }
+        },
+        "color-name": {
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+          "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
+        },
+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
       }
     },
     "wrappy": {
@@ -11382,27 +11486,92 @@
       "dev": true
     },
     "yargs": {
-      "version": "15.3.1",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.3.1.tgz",
-      "integrity": "sha512-92O1HWEjw27sBfgmXiixJWT5hRBp2eobqXicLtPBIDBhYB+1HpwZlXmbW2luivBJHBzki+7VyCLRtAkScbTBQA==",
+      "version": "14.2.3",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-14.2.3.tgz",
+      "integrity": "sha512-ZbotRWhF+lkjijC/VhmOT9wSgyBQ7+zr13+YLkhfsSiTriYsMzkTUFP18pFhWwBeMa5gUc1MzbhrO6/VB7c9Xg==",
       "requires": {
-        "cliui": "^6.0.0",
+        "cliui": "^5.0.0",
         "decamelize": "^1.2.0",
-        "find-up": "^4.1.0",
+        "find-up": "^3.0.0",
         "get-caller-file": "^2.0.1",
         "require-directory": "^2.1.1",
         "require-main-filename": "^2.0.0",
         "set-blocking": "^2.0.0",
-        "string-width": "^4.2.0",
+        "string-width": "^3.0.0",
         "which-module": "^2.0.0",
         "y18n": "^4.0.0",
-        "yargs-parser": "^18.1.1"
+        "yargs-parser": "^15.0.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg=="
+        },
+        "emoji-regex": {
+          "version": "7.0.3",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
+          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
+        },
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "path-exists": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
+          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        }
       }
     },
     "yargs-parser": {
-      "version": "18.1.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.1.tgz",
-      "integrity": "sha512-KRHEsOM16IX7XuLnMOqImcPNbLVXMNHYAoFc3BKR8Ortl5gzDbtXvvEoGx9imk5E+X1VeNKNlcHr8B8vi+7ipA==",
+      "version": "15.0.1",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-15.0.1.tgz",
+      "integrity": "sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==",
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/package.json b/package.json
index 223011a61..76dc3625f 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   "dependencies": {
     "neo-async": "^2.6.0",
     "source-map": "^0.6.1",
-    "yargs": "^15.3.1"
+    "yargs": "^14.2.3"
   },
   "optionalDependencies": {
     "uglify-js": "^3.1.4"

From 3c9c2f5cf29cf10f54d5fe4daca6b24b65f0adcf Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Thu, 2 Apr 2020 20:09:16 +0100
Subject: [PATCH 177/191] Update release notes

---
 release-notes.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index ad3dce627..7b8397402 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,19 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.5...master)
+
+## v4.7.5 - April 2nd, 2020
+
+Chore/Housekeeping:
+
+- Node.js version support has been changed to v6+
+
+Compatibility notes:
+
+- Node.js < v6 is no longer supported
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...v4.7.5)
 
 ## v4.7.4 - April 1st, 2020
 

From 1fd2edee2a12fb228061fcde807905c6b14339c4 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Thu, 2 Apr 2020 20:09:49 +0100
Subject: [PATCH 178/191] v4.7.5

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 5cb15f075..84ecbf5c7 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.4",
+  "version": "4.7.5",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index dc4b1bdb9..400d4f9fa 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.4</version>
+		<version>4.7.5</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index 81b90aa52..ae456f163 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.4",
+  "version": "4.7.5",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 20c75972f..deaf691c3 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.4';
+export const VERSION = '4.7.5';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 76dc3625f..c886527a6 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.4",
+  "version": "4.7.5",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 08e9a11a34c3ad8387a0b85b1334f97cab85191a Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Fri, 3 Apr 2020 18:17:52 +0100
Subject: [PATCH 179/191] Revert "chore: set Node.js compatibility to v6+"

This reverts commit 309d2b49a11628d2a8f052c5587e7459968cd705.
---
 README.markdown                               | 2 +-
 integration-testing/multi-nodejs-test/test.sh | 2 +-
 package.json                                  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/README.markdown b/README.markdown
index 2b49bca56..5450f9cd2 100644
--- a/README.markdown
+++ b/README.markdown
@@ -79,7 +79,7 @@ Supported Environments
 
 Handlebars has been designed to work in any ECMAScript 3 environment. This includes
 
-- Node.js v6+
+- Node.js
 - Chrome
 - Firefox
 - Safari 5+
diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index d38b14ffa..99682b453 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -17,7 +17,7 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 unset npm_config_prefix
 
 echo "Handlebars should be able to run in various versions of NodeJS"
-for i in 6 7 8 9 10 11 12 13; do
+for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
     rm target node_modules package-lock.json -rf
     mkdir target
     nvm install "$i"
diff --git a/package.json b/package.json
index c886527a6..af68b3aea 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "license": "MIT",
   "readmeFilename": "README.md",
   "engines": {
-    "node": ">=6"
+    "node": ">=0.4.7"
   },
   "dependencies": {
     "neo-async": "^2.6.0",

From c2f1e6203178918569f085e12afdb762cae17fb0 Mon Sep 17 00:00:00 2001
From: Douglas Christopher Wilson <doug@somethingdoug.com>
Date: Thu, 2 Apr 2020 21:42:57 -0400
Subject: [PATCH 180/191] Switch cmd parser to latest minimist

---
 bin/.eslintrc.js            |   6 +
 bin/handlebars              | 268 ++++++++++++--------
 package-lock.json           | 485 +++++++++++++++---------------------
 package.json                |   3 +-
 spec/expected/help.menu.txt |   4 +-
 5 files changed, 365 insertions(+), 401 deletions(-)
 create mode 100644 bin/.eslintrc.js

diff --git a/bin/.eslintrc.js b/bin/.eslintrc.js
new file mode 100644
index 000000000..ad6e812aa
--- /dev/null
+++ b/bin/.eslintrc.js
@@ -0,0 +1,6 @@
+module.exports = {
+  rules: {
+    'no-console': 0,
+    'no-var': 0
+  }
+};
diff --git a/bin/handlebars b/bin/handlebars
index 17a36609d..7749121d3 100755
--- a/bin/handlebars
+++ b/bin/handlebars
@@ -1,115 +1,109 @@
 #!/usr/bin/env node
 
-const yargs = require('yargs')
-  .usage('Precompile handlebar templates.\nUsage: $0 [template|directory]...')
-  .option('f', {
-    type: 'string',
-    description: 'Output File',
-    alias: 'output'
-  })
-  .option('map', {
-    type: 'string',
-    description: 'Source Map File'
-  })
-  .option('a', {
-    type: 'boolean',
-    description: 'Exports amd style (require.js)',
-    alias: 'amd'
-  })
-  .option('c', {
-    type: 'string',
-    description: 'Exports CommonJS style, path to Handlebars module',
-    alias: 'commonjs',
-    default: null
-  })
-  .option('h', {
-    type: 'string',
-    description: 'Path to handlebar.js (only valid for amd-style)',
-    alias: 'handlebarPath',
-    default: ''
-  })
-  .option('k', {
-    type: 'string',
-    description: 'Known helpers',
-    alias: 'known'
-  })
-  .option('o', {
-    type: 'boolean',
-    description: 'Known helpers only',
-    alias: 'knownOnly'
-  })
-  .option('m', {
-    type: 'boolean',
-    description: 'Minimize output',
-    alias: 'min'
-  })
-  .option('n', {
-    type: 'string',
-    description: 'Template namespace',
-    alias: 'namespace',
-    default: 'Handlebars.templates'
-  })
-  .option('s', {
-    type: 'boolean',
-    description: 'Output template function only.',
-    alias: 'simple'
-  })
-  .option('N', {
-    type: 'string',
-    description:
-      'Name of passed string templates. Optional if running in a simple mode. Required when operating on multiple templates.',
-    alias: 'name'
-  })
-  .option('i', {
-    type: 'string',
-    description:
-      'Generates a template from the passed CLI argument.\n"-" is treated as a special value and causes stdin to be read for the template value.',
-    alias: 'string'
-  })
-  .option('r', {
-    type: 'string',
-    description:
-      'Template root. Base value that will be stripped from template names.',
-    alias: 'root'
-  })
-  .option('p', {
-    type: 'boolean',
-    description: 'Compiling a partial template',
-    alias: 'partial'
-  })
-  .option('d', {
-    type: 'boolean',
-    description: 'Include data when compiling',
-    alias: 'data'
-  })
-  .option('e', {
-    type: 'string',
-    description: 'Template extension.',
-    alias: 'extension',
-    default: 'handlebars'
-  })
-  .option('b', {
-    type: 'boolean',
-    description:
-      'Removes the BOM (Byte Order Mark) from the beginning of the templates.',
-    alias: 'bom'
-  })
-  .option('v', {
-    type: 'boolean',
-    description: 'Prints the current compiler version',
-    alias: 'version'
-  })
-  .option('help', {
-    type: 'boolean',
-    description: 'Outputs this message'
-  })
-  .wrap(120);
-
-const argv = yargs.argv;
+var argv = parseArgs({
+  'f': {
+    'type': 'string',
+    'description': 'Output File',
+    'alias': 'output'
+  },
+  'map': {
+    'type': 'string',
+    'description': 'Source Map File'
+  },
+  'a': {
+    'type': 'boolean',
+    'description': 'Exports amd style (require.js)',
+    'alias': 'amd'
+  },
+  'c': {
+    'type': 'string',
+    'description': 'Exports CommonJS style, path to Handlebars module',
+    'alias': 'commonjs',
+    'default': null
+  },
+  'h': {
+    'type': 'string',
+    'description': 'Path to handlebar.js (only valid for amd-style)',
+    'alias': 'handlebarPath',
+    'default': ''
+  },
+  'k': {
+    'type': 'string',
+    'description': 'Known helpers',
+    'alias': 'known'
+  },
+  'o': {
+    'type': 'boolean',
+    'description': 'Known helpers only',
+    'alias': 'knownOnly'
+  },
+  'm': {
+    'type': 'boolean',
+    'description': 'Minimize output',
+    'alias': 'min'
+  },
+  'n': {
+    'type': 'string',
+    'description': 'Template namespace',
+    'alias': 'namespace',
+    'default': 'Handlebars.templates'
+  },
+  's': {
+    'type': 'boolean',
+    'description': 'Output template function only.',
+    'alias': 'simple'
+  },
+  'N': {
+    'type': 'string',
+    'description': 'Name of passed string templates. Optional if running in a simple mode. Required when operating on multiple templates.',
+    'alias': 'name'
+  },
+  'i': {
+    'type': 'string',
+    'description': 'Generates a template from the passed CLI argument.\n"-" is treated as a special value and causes stdin to be read for the template value.',
+    'alias': 'string'
+  },
+  'r': {
+    'type': 'string',
+    'description': 'Template root. Base value that will be stripped from template names.',
+    'alias': 'root'
+  },
+  'p': {
+    'type': 'boolean',
+    'description': 'Compiling a partial template',
+    'alias': 'partial'
+  },
+  'd': {
+    'type': 'boolean',
+    'description': 'Include data when compiling',
+    'alias': 'data'
+  },
+  'e': {
+    'type': 'string',
+    'description': 'Template extension.',
+    'alias': 'extension',
+    'default': 'handlebars'
+  },
+  'b': {
+    'type': 'boolean',
+    'description': 'Removes the BOM (Byte Order Mark) from the beginning of the templates.',
+    'alias': 'bom'
+  },
+  'v': {
+    'type': 'boolean',
+    'description': 'Prints the current compiler version',
+    'alias': 'version'
+  },
+  'help': {
+    'type': 'boolean',
+    'description': 'Outputs this message'
+  }
+});
+
 argv.files = argv._;
 delete argv._;
 
-const Precompiler = require('../dist/cjs/precompiler');
+var Precompiler = require('../dist/cjs/precompiler');
 Precompiler.loadTemplates(argv, function(err, opts) {
 
   if (err) {
@@ -117,8 +111,66 @@ Precompiler.loadTemplates(argv, function(err, opts) {
   }
 
   if (opts.help || (!opts.templates.length && !opts.version)) {
-    yargs.showHelp();
+    printUsage(argv._spec, 120);
   } else {
     Precompiler.cli(opts);
   }
 });
+
+function pad(n) {
+  var str = '';
+  while (str.length < n) {
+    str += ' ';
+  }
+  return str;
+}
+
+function parseArgs(spec) {
+  var opts = { alias: {}, boolean: [], default: {}, string: [] };
+
+  Object.keys(spec).forEach(function (arg) {
+    var opt = spec[arg];
+    opts[opt.type].push(arg);
+    if ('alias' in opt) opts.alias[arg] = opt.alias;
+    if ('default' in opt) opts.default[arg] = opt.default;
+  });
+
+  var argv = require('minimist')(process.argv.slice(2), opts);
+  argv._spec = spec;
+  return argv;
+}
+
+function printUsage(spec, wrap) {
+  var wordwrap = require('wordwrap');
+
+  console.log('Precompile handlebar templates.');
+  console.log('Usage: handlebars [template|directory]...');
+
+  var opts = [];
+  var width = 0;
+  Object.keys(spec).forEach(function (arg) {
+    var opt = spec[arg];
+
+    var name = (arg.length === 1 ? '-' : '--') + arg;
+    if ('alias' in opt) name += ', --' + opt.alias;
+
+    var meta = '[' + opt.type + ']';
+    if ('default' in opt) meta += ' [default: ' + JSON.stringify(opt.default) + ']';
+
+    opts.push({ name: name, desc: opt.description, meta: meta });
+    if (name.length > width) width = name.length;
+  });
+
+  console.log('Options:');
+  opts.forEach(function (opt) {
+    var desc = wordwrap(width + 4, wrap + 1)(opt.desc);
+
+    console.log('  %s%s%s%s%s',
+      opt.name,
+      pad(width - opt.name.length + 2),
+      desc.slice(width + 4),
+      pad(wrap - opt.meta.length - desc.split(/\n/).pop().length),
+      opt.meta
+      );
+  });
+}
diff --git a/package-lock.json b/package-lock.json
index 28754a927..28b4eb763 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.4",
+  "version": "4.7.5",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -1367,7 +1367,8 @@
     "camelcase": {
       "version": "5.3.1",
       "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
-      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg=="
+      "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+      "dev": true
     },
     "camelcase-keys": {
       "version": "2.1.0",
@@ -1648,51 +1649,6 @@
       "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
       "dev": true
     },
-    "cliui": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-5.0.0.tgz",
-      "integrity": "sha512-PYeGSEmmHM6zvoef2w8TPzlrnNpXIjTipYK780YswmIP9vjxmd6Y2a3CB2Ks6/AU8NHjZugXvo8w3oWM2qnwXA==",
-      "requires": {
-        "string-width": "^3.1.0",
-        "strip-ansi": "^5.2.0",
-        "wrap-ansi": "^5.1.0"
-      },
-      "dependencies": {
-        "ansi-regex": {
-          "version": "4.1.0",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
-          "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg=="
-        },
-        "emoji-regex": {
-          "version": "7.0.3",
-          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-7.0.3.tgz",
-          "integrity": "sha512-CwBLREIQ7LvYFB0WyRvwhq5N5qPhc6PMjD6bYggFlI5YyDgl+0vxq5VHbMOFqLg7hfWzmu8T5Z1QofhmTIhItA=="
-        },
-        "is-fullwidth-code-point": {
-          "version": "2.0.0",
-          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
-          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8="
-        },
-        "string-width": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
-          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
-          "requires": {
-            "emoji-regex": "^7.0.1",
-            "is-fullwidth-code-point": "^2.0.0",
-            "strip-ansi": "^5.1.0"
-          }
-        },
-        "strip-ansi": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
-          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
-          "requires": {
-            "ansi-regex": "^4.1.0"
-          }
-        }
-      }
-    },
     "clone": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/clone/-/clone-1.0.4.tgz",
@@ -2307,7 +2263,8 @@
     "decamelize": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
-      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+      "dev": true
     },
     "decode-uri-component": {
       "version": "0.2.0",
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-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
-          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
-          "requires": {
-            "p-limit": "^2.0.0"
-          }
-        },
-        "path-exists": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-3.0.0.tgz",
-          "integrity": "sha1-zg6+ql94yxiSXqfYENe1mwEP1RU="
-        },
-        "string-width": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
-          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
-          "requires": {
-            "emoji-regex": "^7.0.1",
-            "is-fullwidth-code-point": "^2.0.0",
-            "strip-ansi": "^5.1.0"
-          }
-        },
-        "strip-ansi": {
-          "version": "5.2.0",
-          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
-          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
-          "requires": {
-            "ansi-regex": "^4.1.0"
-          }
-        }
-      }
-    },
-    "yargs-parser": {
-      "version": "15.0.1",
-      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-15.0.1.tgz",
-      "integrity": "sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==",
-      "requires": {
-        "camelcase": "^5.0.0",
-        "decamelize": "^1.2.0"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index af68b3aea..7c95abf8a 100644
--- a/package.json
+++ b/package.json
@@ -21,9 +21,10 @@
     "node": ">=0.4.7"
   },
   "dependencies": {
+    "minimist": "^1.2.5",
     "neo-async": "^2.6.0",
     "source-map": "^0.6.1",
-    "yargs": "^14.2.3"
+    "wordwrap": "^1.0.0"
   },
   "optionalDependencies": {
     "uglify-js": "^3.1.4"
diff --git a/spec/expected/help.menu.txt b/spec/expected/help.menu.txt
index 027bb73a7..834f4afe2 100644
--- a/spec/expected/help.menu.txt
+++ b/spec/expected/help.menu.txt
@@ -2,7 +2,6 @@ Precompile handlebar templates.
 Usage: handlebars [template|directory]...
 
 Options:
-  --help               Outputs this message                                                                    [boolean]
   -f, --output         Output File                                                                              [string]
   --map                Source Map File                                                                          [string]
   -a, --amd            Exports amd style (require.js)                                                          [boolean]
@@ -22,4 +21,5 @@ Options:
   -d, --data           Include data when compiling                                                             [boolean]
   -e, --extension      Template extension.                                              [string] [default: "handlebars"]
   -b, --bom            Removes the BOM (Byte Order Mark) from the beginning of the templates.                  [boolean]
-  -v, --version        Show version number                                                                     [boolean]
\ No newline at end of file
+  -v, --version        Prints the current compiler version                                                     [boolean]
+  --help               Outputs this message                                                                    [boolean]
\ No newline at end of file

From b64202bc9197307bd785a58693e3820eb9bb41a8 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <github.erisds@gmail.com>
Date: Fri, 3 Apr 2020 18:47:56 +0100
Subject: [PATCH 181/191] Update release-notes.md

- indicate changes have been reverted
---
 release-notes.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/release-notes.md b/release-notes.md
index 7b8397402..5cc5b9d00 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -8,11 +8,11 @@
 
 Chore/Housekeeping:
 
-- Node.js version support has been changed to v6+
+- ~Node.js version support has been changed to v6+~ Reverted in 4.7.6
 
 Compatibility notes:
 
-- Node.js < v6 is no longer supported
+- ~Node.js < v6 is no longer supported~ Reverted in 4.7.6
 
 [Commits](https://github.com/wycats/handlebars.js/compare/v4.7.4...v4.7.5)
 

From 2bf4fc6fd3ae3d8f076d628653f284d85faebeb4 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Fri, 3 Apr 2020 18:55:39 +0100
Subject: [PATCH 182/191] Update release notes

---
 release-notes.md | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index 5cc5b9d00..fa945d3a5 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,19 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.5...master)
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.6...master)
+
+## v4.7.6 - April 3rd, 2020
+
+Chore/Housekeeping:
+
+- [#1672](https://github.com/wycats/handlebars.js/issues/1672) - Switch cmd parser to latest minimist ([@dougwilson](https://api.github.com/users/dougwilson)
+
+Compatibility notes:
+
+- Restored Node.js compatibility
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.5...v4.7.6)
 
 ## v4.7.5 - April 2nd, 2020
 

From e6ad93ea01bcde1f8ddaa4b4ebe572dd616abfaa Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Fri, 3 Apr 2020 18:56:22 +0100
Subject: [PATCH 183/191] v4.7.6

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 84ecbf5c7..788826d07 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.5",
+  "version": "4.7.6",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 400d4f9fa..4594e2512 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.5</version>
+		<version>4.7.6</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index ae456f163..ecb9960da 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.5",
+  "version": "4.7.6",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index deaf691c3..753c9a466 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.5';
+export const VERSION = '4.7.6';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index 7c95abf8a..aa5c2dff6 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.5",
+  "version": "4.7.6",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [

From 3789a309554fd600caeae442f40881cf93eb3b54 Mon Sep 17 00:00:00 2001
From: Hannah Wolfe <erisds@gmail.com>
Date: Fri, 3 Apr 2020 20:05:19 +0100
Subject: [PATCH 184/191] chore: start testing on Node.js 12 and 13

- make sure we're aware of all compatibility issues
---
 integration-testing/multi-nodejs-test/test.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index 99682b453..4dd6d05a8 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -17,7 +17,7 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 unset npm_config_prefix
 
 echo "Handlebars should be able to run in various versions of NodeJS"
-for i in  0.10 0.12 4 5 6 7 8 9 10 11 ; do
+for i in  0.10 0.12 4 5 6 7 8 9 10 11 12 13 ; do
     rm target node_modules package-lock.json -rf
     mkdir target
     nvm install "$i"

From 77825f8d3522356feb8e4160fac16344104d192b Mon Sep 17 00:00:00 2001
From: John Boehr <john@johnboehr.is>
Date: Mon, 4 May 2020 15:04:33 -0700
Subject: [PATCH 185/191] refator: In spec tests, use expectTemplate over
 equals and shouldThrow (#1683)

---
 spec/basic.js               |  790 ++++++++++-----------
 spec/blocks.js              |  625 ++++++++--------
 spec/builtins.js            |  890 +++++++++++------------
 spec/data.js                |  402 +++++------
 spec/env/common.js          |   47 +-
 spec/helpers.js             | 1335 ++++++++++++++---------------------
 spec/javascript-compiler.js |   20 +-
 spec/partials.js            | 1048 ++++++++++++---------------
 spec/regressions.js         |  461 ++++++------
 spec/security.js            |   66 +-
 spec/spec.js                |   22 +-
 spec/strict.js              |  262 +++----
 spec/string-params.js       |  347 ++++-----
 spec/subexpressions.js      |  438 ++++++------
 spec/track-ids.js           |  508 ++++++-------
 spec/utils.js               |    8 +-
 spec/whitespace-control.js  |  205 +++---
 17 files changed, 3350 insertions(+), 4124 deletions(-)

diff --git a/spec/basic.js b/spec/basic.js
index 65d228729..4c7afb706 100644
--- a/spec/basic.js
+++ b/spec/basic.js
@@ -6,117 +6,156 @@ beforeEach(function() {
 
 describe('basic context', function() {
   it('most basic', function() {
-    shouldCompileTo('{{foo}}', { foo: 'foo' }, 'foo');
+    expectTemplate('{{foo}}')
+      .withInput({ foo: 'foo' })
+      .toCompileTo('foo');
   });
 
   it('escaping', function() {
-    shouldCompileTo('\\{{foo}}', { foo: 'food' }, '{{foo}}');
-    shouldCompileTo('content \\{{foo}}', { foo: 'food' }, 'content {{foo}}');
-    shouldCompileTo('\\\\{{foo}}', { foo: 'food' }, '\\food');
-    shouldCompileTo('content \\\\{{foo}}', { foo: 'food' }, 'content \\food');
-    shouldCompileTo('\\\\ {{foo}}', { foo: 'food' }, '\\\\ food');
+    expectTemplate('\\{{foo}}')
+      .withInput({ foo: 'food' })
+      .toCompileTo('{{foo}}');
+
+    expectTemplate('content \\{{foo}}')
+      .withInput({ foo: 'food' })
+      .toCompileTo('content {{foo}}');
+
+    expectTemplate('\\\\{{foo}}')
+      .withInput({ foo: 'food' })
+      .toCompileTo('\\food');
+
+    expectTemplate('content \\\\{{foo}}')
+      .withInput({ foo: 'food' })
+      .toCompileTo('content \\food');
+
+    expectTemplate('\\\\ {{foo}}')
+      .withInput({ foo: 'food' })
+      .toCompileTo('\\\\ food');
   });
 
   it('compiling with a basic context', function() {
-    shouldCompileTo(
-      'Goodbye\n{{cruel}}\n{{world}}!',
-      { cruel: 'cruel', world: 'world' },
-      'Goodbye\ncruel\nworld!',
-      'It works if all the required keys are provided'
-    );
+    expectTemplate('Goodbye\n{{cruel}}\n{{world}}!')
+      .withInput({
+        cruel: 'cruel',
+        world: 'world'
+      })
+      .withMessage('It works if all the required keys are provided')
+      .toCompileTo('Goodbye\ncruel\nworld!');
   });
 
   it('compiling with a string context', function() {
-    shouldCompileTo('{{.}}{{length}}', 'bye', 'bye3');
+    expectTemplate('{{.}}{{length}}')
+      .withInput('bye')
+      .toCompileTo('bye3');
   });
 
   it('compiling with an undefined context', function() {
-    shouldCompileTo(
-      'Goodbye\n{{cruel}}\n{{world.bar}}!',
-      undefined,
-      'Goodbye\n\n!'
-    );
+    expectTemplate('Goodbye\n{{cruel}}\n{{world.bar}}!')
+      .withInput(undefined)
+      .toCompileTo('Goodbye\n\n!');
 
-    shouldCompileTo(
-      '{{#unless foo}}Goodbye{{../test}}{{test2}}{{/unless}}',
-      undefined,
-      'Goodbye'
-    );
+    expectTemplate('{{#unless foo}}Goodbye{{../test}}{{test2}}{{/unless}}')
+      .withInput(undefined)
+      .toCompileTo('Goodbye');
   });
 
   it('comments', function() {
-    shouldCompileTo(
-      '{{! Goodbye}}Goodbye\n{{cruel}}\n{{world}}!',
-      { cruel: 'cruel', world: 'world' },
-      'Goodbye\ncruel\nworld!',
-      'comments are ignored'
+    expectTemplate('{{! Goodbye}}Goodbye\n{{cruel}}\n{{world}}!')
+      .withInput({
+        cruel: 'cruel',
+        world: 'world'
+      })
+      .withMessage('comments are ignored')
+      .toCompileTo('Goodbye\ncruel\nworld!');
+
+    expectTemplate('    {{~! comment ~}}      blah').toCompileTo('blah');
+
+    expectTemplate('    {{~!-- long-comment --~}}      blah').toCompileTo(
+      'blah'
     );
 
-    shouldCompileTo('    {{~! comment ~}}      blah', {}, 'blah');
-    shouldCompileTo('    {{~!-- long-comment --~}}      blah', {}, 'blah');
-    shouldCompileTo('    {{! comment ~}}      blah', {}, '    blah');
-    shouldCompileTo('    {{!-- long-comment --~}}      blah', {}, '    blah');
-    shouldCompileTo('    {{~! comment}}      blah', {}, '      blah');
-    shouldCompileTo('    {{~!-- long-comment --}}      blah', {}, '      blah');
-  });
+    expectTemplate('    {{! comment ~}}      blah').toCompileTo('    blah');
 
-  it('boolean', function() {
-    var string = '{{#goodbye}}GOODBYE {{/goodbye}}cruel {{world}}!';
-    shouldCompileTo(
-      string,
-      { goodbye: true, world: 'world' },
-      'GOODBYE cruel world!',
-      'booleans show the contents when true'
+    expectTemplate('    {{!-- long-comment --~}}      blah').toCompileTo(
+      '    blah'
     );
 
-    shouldCompileTo(
-      string,
-      { goodbye: false, world: 'world' },
-      'cruel world!',
-      'booleans do not show the contents when false'
+    expectTemplate('    {{~! comment}}      blah').toCompileTo('      blah');
+
+    expectTemplate('    {{~!-- long-comment --}}      blah').toCompileTo(
+      '      blah'
     );
   });
 
+  it('boolean', function() {
+    var string = '{{#goodbye}}GOODBYE {{/goodbye}}cruel {{world}}!';
+    expectTemplate(string)
+      .withInput({
+        goodbye: true,
+        world: 'world'
+      })
+      .withMessage('booleans show the contents when true')
+      .toCompileTo('GOODBYE cruel world!');
+
+    expectTemplate(string)
+      .withInput({
+        goodbye: false,
+        world: 'world'
+      })
+      .withMessage('booleans do not show the contents when false')
+      .toCompileTo('cruel world!');
+  });
+
   it('zeros', function() {
-    shouldCompileTo(
-      'num1: {{num1}}, num2: {{num2}}',
-      { num1: 42, num2: 0 },
-      'num1: 42, num2: 0'
-    );
-    shouldCompileTo('num: {{.}}', 0, 'num: 0');
-    shouldCompileTo('num: {{num1/num2}}', { num1: { num2: 0 } }, 'num: 0');
+    expectTemplate('num1: {{num1}}, num2: {{num2}}')
+      .withInput({
+        num1: 42,
+        num2: 0
+      })
+      .toCompileTo('num1: 42, num2: 0');
+
+    expectTemplate('num: {{.}}')
+      .withInput(0)
+      .toCompileTo('num: 0');
+
+    expectTemplate('num: {{num1/num2}}')
+      .withInput({ num1: { num2: 0 } })
+      .toCompileTo('num: 0');
   });
+
   it('false', function() {
     /* eslint-disable no-new-wrappers */
-    shouldCompileTo(
-      'val1: {{val1}}, val2: {{val2}}',
-      { val1: false, val2: new Boolean(false) },
-      'val1: false, val2: false'
-    );
-    shouldCompileTo('val: {{.}}', false, 'val: false');
-    shouldCompileTo(
-      'val: {{val1/val2}}',
-      { val1: { val2: false } },
-      'val: false'
-    );
-
-    shouldCompileTo(
-      'val1: {{{val1}}}, val2: {{{val2}}}',
-      { val1: false, val2: new Boolean(false) },
-      'val1: false, val2: false'
-    );
-    shouldCompileTo(
-      'val: {{{val1/val2}}}',
-      { val1: { val2: false } },
-      'val: false'
-    );
+    expectTemplate('val1: {{val1}}, val2: {{val2}}')
+      .withInput({
+        val1: false,
+        val2: new Boolean(false)
+      })
+      .toCompileTo('val1: false, val2: false');
+
+    expectTemplate('val: {{.}}')
+      .withInput(false)
+      .toCompileTo('val: false');
+
+    expectTemplate('val: {{val1/val2}}')
+      .withInput({ val1: { val2: false } })
+      .toCompileTo('val: false');
+
+    expectTemplate('val1: {{{val1}}}, val2: {{{val2}}}')
+      .withInput({
+        val1: false,
+        val2: new Boolean(false)
+      })
+      .toCompileTo('val1: false, val2: false');
+
+    expectTemplate('val: {{{val1/val2}}}')
+      .withInput({ val1: { val2: false } })
+      .toCompileTo('val: false');
     /* eslint-enable */
   });
 
   it('should handle undefined and null', function() {
-    shouldCompileTo(
-      '{{awesome undefined null}}',
-      {
+    expectTemplate('{{awesome undefined null}}')
+      .withInput({
         awesome: function(_undefined, _null, options) {
           return (
             (_undefined === undefined) +
@@ -126,373 +165,325 @@ describe('basic context', function() {
             typeof options
           );
         }
-      },
-      'true true object'
-    );
-    shouldCompileTo(
-      '{{undefined}}',
-      {
+      })
+      .toCompileTo('true true object');
+
+    expectTemplate('{{undefined}}')
+      .withInput({
         undefined: function() {
           return 'undefined!';
         }
-      },
-      'undefined!'
-    );
-    shouldCompileTo(
-      '{{null}}',
-      {
+      })
+      .toCompileTo('undefined!');
+
+    expectTemplate('{{null}}')
+      .withInput({
         null: function() {
           return 'null!';
         }
-      },
-      'null!'
-    );
+      })
+      .toCompileTo('null!');
   });
 
   it('newlines', function() {
-    shouldCompileTo("Alan's\nTest", {}, "Alan's\nTest");
-    shouldCompileTo("Alan's\rTest", {}, "Alan's\rTest");
+    expectTemplate("Alan's\nTest").toCompileTo("Alan's\nTest");
+
+    expectTemplate("Alan's\rTest").toCompileTo("Alan's\rTest");
   });
 
   it('escaping text', function() {
-    shouldCompileTo(
-      "Awesome's",
-      {},
-      "Awesome's",
-      "text is escaped so that it doesn't get caught on single quotes"
-    );
-    shouldCompileTo(
-      'Awesome\\',
-      {},
-      'Awesome\\',
-      "text is escaped so that the closing quote can't be ignored"
-    );
-    shouldCompileTo(
-      'Awesome\\\\ foo',
-      {},
-      'Awesome\\\\ foo',
-      "text is escaped so that it doesn't mess up backslashes"
-    );
-    shouldCompileTo(
-      'Awesome {{foo}}',
-      { foo: '\\' },
-      'Awesome \\',
-      "text is escaped so that it doesn't mess up backslashes"
-    );
-    shouldCompileTo(
-      " ' ' ",
-      {},
-      " ' ' ",
-      'double quotes never produce invalid javascript'
-    );
+    expectTemplate("Awesome's")
+      .withMessage(
+        "text is escaped so that it doesn't get caught on single quotes"
+      )
+      .toCompileTo("Awesome's");
+
+    expectTemplate('Awesome\\')
+      .withMessage("text is escaped so that the closing quote can't be ignored")
+      .toCompileTo('Awesome\\');
+
+    expectTemplate('Awesome\\\\ foo')
+      .withMessage("text is escaped so that it doesn't mess up backslashes")
+      .toCompileTo('Awesome\\\\ foo');
+
+    expectTemplate('Awesome {{foo}}')
+      .withInput({ foo: '\\' })
+      .withMessage("text is escaped so that it doesn't mess up backslashes")
+      .toCompileTo('Awesome \\');
+
+    expectTemplate(" ' ' ")
+      .withMessage('double quotes never produce invalid javascript')
+      .toCompileTo(" ' ' ");
   });
 
   it('escaping expressions', function() {
-    shouldCompileTo(
-      '{{{awesome}}}',
-      { awesome: "&'\\<>" },
-      "&'\\<>",
-      "expressions with 3 handlebars aren't escaped"
-    );
+    expectTemplate('{{{awesome}}}')
+      .withInput({ awesome: "&'\\<>" })
+      .withMessage("expressions with 3 handlebars aren't escaped")
+      .toCompileTo("&'\\<>");
 
-    shouldCompileTo(
-      '{{&awesome}}',
-      { awesome: "&'\\<>" },
-      "&'\\<>",
-      "expressions with {{& handlebars aren't escaped"
-    );
+    expectTemplate('{{&awesome}}')
+      .withInput({ awesome: "&'\\<>" })
+      .withMessage("expressions with {{& handlebars aren't escaped")
+      .toCompileTo("&'\\<>");
 
-    shouldCompileTo(
-      '{{awesome}}',
-      { awesome: '&"\'`\\<>' },
-      '&amp;&quot;&#x27;&#x60;\\&lt;&gt;',
-      'by default expressions should be escaped'
-    );
+    expectTemplate('{{awesome}}')
+      .withInput({ awesome: '&"\'`\\<>' })
+      .withMessage('by default expressions should be escaped')
+      .toCompileTo('&amp;&quot;&#x27;&#x60;\\&lt;&gt;');
 
-    shouldCompileTo(
-      '{{awesome}}',
-      { awesome: 'Escaped, <b> looks like: &lt;b&gt;' },
-      'Escaped, &lt;b&gt; looks like: &amp;lt;b&amp;gt;',
-      'escaping should properly handle amperstands'
-    );
+    expectTemplate('{{awesome}}')
+      .withInput({ awesome: 'Escaped, <b> looks like: &lt;b&gt;' })
+      .withMessage('escaping should properly handle amperstands')
+      .toCompileTo('Escaped, &lt;b&gt; looks like: &amp;lt;b&amp;gt;');
   });
 
   it("functions returning safestrings shouldn't be escaped", function() {
-    var hash = {
-      awesome: function() {
-        return new Handlebars.SafeString("&'\\<>");
-      }
-    };
-    shouldCompileTo(
-      '{{awesome}}',
-      hash,
-      "&'\\<>",
-      "functions returning safestrings aren't escaped"
-    );
+    expectTemplate('{{awesome}}')
+      .withInput({
+        awesome: function() {
+          return new Handlebars.SafeString("&'\\<>");
+        }
+      })
+      .withMessage("functions returning safestrings aren't escaped")
+      .toCompileTo("&'\\<>");
   });
 
   it('functions', function() {
-    shouldCompileTo(
-      '{{awesome}}',
-      {
+    expectTemplate('{{awesome}}')
+      .withInput({
         awesome: function() {
           return 'Awesome';
         }
-      },
-      'Awesome',
-      'functions are called and render their output'
-    );
-    shouldCompileTo(
-      '{{awesome}}',
-      {
+      })
+      .withMessage('functions are called and render their output')
+      .toCompileTo('Awesome');
+
+    expectTemplate('{{awesome}}')
+      .withInput({
         awesome: function() {
           return this.more;
         },
         more: 'More awesome'
-      },
-      'More awesome',
-      'functions are bound to the context'
-    );
+      })
+      .withMessage('functions are bound to the context')
+      .toCompileTo('More awesome');
   });
 
   it('functions with context argument', function() {
-    shouldCompileTo(
-      '{{awesome frank}}',
-      {
+    expectTemplate('{{awesome frank}}')
+      .withInput({
         awesome: function(context) {
           return context;
         },
         frank: 'Frank'
-      },
-      'Frank',
-      'functions are called with context arguments'
-    );
+      })
+      .withMessage('functions are called with context arguments')
+      .toCompileTo('Frank');
   });
+
   it('pathed functions with context argument', function() {
-    shouldCompileTo(
-      '{{bar.awesome frank}}',
-      {
+    expectTemplate('{{bar.awesome frank}}')
+      .withInput({
         bar: {
           awesome: function(context) {
             return context;
           }
         },
         frank: 'Frank'
-      },
-      'Frank',
-      'functions are called with context arguments'
-    );
+      })
+      .withMessage('functions are called with context arguments')
+      .toCompileTo('Frank');
   });
+
   it('depthed functions with context argument', function() {
-    shouldCompileTo(
-      '{{#with frank}}{{../awesome .}}{{/with}}',
-      {
+    expectTemplate('{{#with frank}}{{../awesome .}}{{/with}}')
+      .withInput({
         awesome: function(context) {
           return context;
         },
         frank: 'Frank'
-      },
-      'Frank',
-      'functions are called with context arguments'
-    );
+      })
+      .withMessage('functions are called with context arguments')
+      .toCompileTo('Frank');
   });
 
   it('block functions with context argument', function() {
-    shouldCompileTo(
-      '{{#awesome 1}}inner {{.}}{{/awesome}}',
-      {
+    expectTemplate('{{#awesome 1}}inner {{.}}{{/awesome}}')
+      .withInput({
         awesome: function(context, options) {
           return options.fn(context);
         }
-      },
-      'inner 1',
-      'block functions are called with context and options'
-    );
+      })
+      .withMessage('block functions are called with context and options')
+      .toCompileTo('inner 1');
   });
 
   it('depthed block functions with context argument', function() {
-    shouldCompileTo(
-      '{{#with value}}{{#../awesome 1}}inner {{.}}{{/../awesome}}{{/with}}',
-      {
+    expectTemplate(
+      '{{#with value}}{{#../awesome 1}}inner {{.}}{{/../awesome}}{{/with}}'
+    )
+      .withInput({
         value: true,
         awesome: function(context, options) {
           return options.fn(context);
         }
-      },
-      'inner 1',
-      'block functions are called with context and options'
-    );
+      })
+      .withMessage('block functions are called with context and options')
+      .toCompileTo('inner 1');
   });
 
   it('block functions without context argument', function() {
-    shouldCompileTo(
-      '{{#awesome}}inner{{/awesome}}',
-      {
+    expectTemplate('{{#awesome}}inner{{/awesome}}')
+      .withInput({
         awesome: function(options) {
           return options.fn(this);
         }
-      },
-      'inner',
-      'block functions are called with options'
-    );
+      })
+      .withMessage('block functions are called with options')
+      .toCompileTo('inner');
   });
+
   it('pathed block functions without context argument', function() {
-    shouldCompileTo(
-      '{{#foo.awesome}}inner{{/foo.awesome}}',
-      {
+    expectTemplate('{{#foo.awesome}}inner{{/foo.awesome}}')
+      .withInput({
         foo: {
           awesome: function() {
             return this;
           }
         }
-      },
-      'inner',
-      'block functions are called with options'
-    );
+      })
+      .withMessage('block functions are called with options')
+      .toCompileTo('inner');
   });
+
   it('depthed block functions without context argument', function() {
-    shouldCompileTo(
-      '{{#with value}}{{#../awesome}}inner{{/../awesome}}{{/with}}',
-      {
+    expectTemplate(
+      '{{#with value}}{{#../awesome}}inner{{/../awesome}}{{/with}}'
+    )
+      .withInput({
         value: true,
         awesome: function() {
           return this;
         }
-      },
-      'inner',
-      'block functions are called with options'
-    );
+      })
+      .withMessage('block functions are called with options')
+      .toCompileTo('inner');
   });
 
   it('paths with hyphens', function() {
-    shouldCompileTo(
-      '{{foo-bar}}',
-      { 'foo-bar': 'baz' },
-      'baz',
-      'Paths can contain hyphens (-)'
-    );
-    shouldCompileTo(
-      '{{foo.foo-bar}}',
-      { foo: { 'foo-bar': 'baz' } },
-      'baz',
-      'Paths can contain hyphens (-)'
-    );
-    shouldCompileTo(
-      '{{foo/foo-bar}}',
-      { foo: { 'foo-bar': 'baz' } },
-      'baz',
-      'Paths can contain hyphens (-)'
-    );
+    expectTemplate('{{foo-bar}}')
+      .withInput({ 'foo-bar': 'baz' })
+      .withMessage('Paths can contain hyphens (-)')
+      .toCompileTo('baz');
+
+    expectTemplate('{{foo.foo-bar}}')
+      .withInput({ foo: { 'foo-bar': 'baz' } })
+      .withMessage('Paths can contain hyphens (-)')
+      .toCompileTo('baz');
+
+    expectTemplate('{{foo/foo-bar}}')
+      .withInput({ foo: { 'foo-bar': 'baz' } })
+      .withMessage('Paths can contain hyphens (-)')
+      .toCompileTo('baz');
   });
 
   it('nested paths', function() {
-    shouldCompileTo(
-      'Goodbye {{alan/expression}} world!',
-      { alan: { expression: 'beautiful' } },
-      'Goodbye beautiful world!',
-      'Nested paths access nested objects'
-    );
+    expectTemplate('Goodbye {{alan/expression}} world!')
+      .withInput({ alan: { expression: 'beautiful' } })
+      .withMessage('Nested paths access nested objects')
+      .toCompileTo('Goodbye beautiful world!');
   });
 
   it('nested paths with empty string value', function() {
-    shouldCompileTo(
-      'Goodbye {{alan/expression}} world!',
-      { alan: { expression: '' } },
-      'Goodbye  world!',
-      'Nested paths access nested objects with empty string'
-    );
+    expectTemplate('Goodbye {{alan/expression}} world!')
+      .withInput({ alan: { expression: '' } })
+      .withMessage('Nested paths access nested objects with empty string')
+      .toCompileTo('Goodbye  world!');
   });
 
   it('literal paths', function() {
-    shouldCompileTo(
-      'Goodbye {{[@alan]/expression}} world!',
-      { '@alan': { expression: 'beautiful' } },
-      'Goodbye beautiful world!',
-      'Literal paths can be used'
-    );
-    shouldCompileTo(
-      'Goodbye {{[foo bar]/expression}} world!',
-      { 'foo bar': { expression: 'beautiful' } },
-      'Goodbye beautiful world!',
-      'Literal paths can be used'
-    );
+    expectTemplate('Goodbye {{[@alan]/expression}} world!')
+      .withInput({ '@alan': { expression: 'beautiful' } })
+      .withMessage('Literal paths can be used')
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate('Goodbye {{[foo bar]/expression}} world!')
+      .withInput({ 'foo bar': { expression: 'beautiful' } })
+      .withMessage('Literal paths can be used')
+      .toCompileTo('Goodbye beautiful world!');
   });
 
   it('literal references', function() {
-    shouldCompileTo(
-      'Goodbye {{[foo bar]}} world!',
-      { 'foo bar': 'beautiful' },
-      'Goodbye beautiful world!'
-    );
-    shouldCompileTo(
-      'Goodbye {{"foo bar"}} world!',
-      { 'foo bar': 'beautiful' },
-      'Goodbye beautiful world!'
-    );
-    shouldCompileTo(
-      "Goodbye {{'foo bar'}} world!",
-      { 'foo bar': 'beautiful' },
-      'Goodbye beautiful world!'
-    );
-    shouldCompileTo(
-      'Goodbye {{"foo[bar"}} world!',
-      { 'foo[bar': 'beautiful' },
-      'Goodbye beautiful world!'
-    );
-    shouldCompileTo(
-      'Goodbye {{"foo\'bar"}} world!',
-      { "foo'bar": 'beautiful' },
-      'Goodbye beautiful world!'
-    );
-    shouldCompileTo(
-      "Goodbye {{'foo\"bar'}} world!",
-      { 'foo"bar': 'beautiful' },
-      'Goodbye beautiful world!'
-    );
+    expectTemplate('Goodbye {{[foo bar]}} world!')
+      .withInput({ 'foo bar': 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate('Goodbye {{"foo bar"}} world!')
+      .withInput({ 'foo bar': 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate("Goodbye {{'foo bar'}} world!")
+      .withInput({ 'foo bar': 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate('Goodbye {{"foo[bar"}} world!')
+      .withInput({ 'foo[bar': 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate('Goodbye {{"foo\'bar"}} world!')
+      .withInput({ "foo'bar": 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
+
+    expectTemplate("Goodbye {{'foo\"bar'}} world!")
+      .withInput({ 'foo"bar': 'beautiful' })
+      .toCompileTo('Goodbye beautiful world!');
   });
 
   it("that current context path ({{.}}) doesn't hit helpers", function() {
-    shouldCompileTo('test: {{.}}', [null, { helper: 'awesome' }], 'test: ');
+    expectTemplate('test: {{.}}')
+      .withInput(null)
+      .withHelpers({ helper: 'awesome' })
+      .toCompileTo('test: ');
   });
 
   it('complex but empty paths', function() {
-    shouldCompileTo('{{person/name}}', { person: { name: null } }, '');
-    shouldCompileTo('{{person/name}}', { person: {} }, '');
+    expectTemplate('{{person/name}}')
+      .withInput({ person: { name: null } })
+      .toCompileTo('');
+
+    expectTemplate('{{person/name}}')
+      .withInput({ person: {} })
+      .toCompileTo('');
   });
 
   it('this keyword in paths', function() {
-    var string = '{{#goodbyes}}{{this}}{{/goodbyes}}';
-    var hash = { goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] };
-    shouldCompileTo(
-      string,
-      hash,
-      'goodbyeGoodbyeGOODBYE',
-      'This keyword in paths evaluates to current context'
-    );
+    expectTemplate('{{#goodbyes}}{{this}}{{/goodbyes}}')
+      .withInput({ goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] })
+      .withMessage('This keyword in paths evaluates to current context')
+      .toCompileTo('goodbyeGoodbyeGOODBYE');
 
-    string = '{{#hellos}}{{this/text}}{{/hellos}}';
-    hash = {
-      hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
-    };
-    shouldCompileTo(
-      string,
-      hash,
-      'helloHelloHELLO',
-      'This keyword evaluates in more complex paths'
-    );
+    expectTemplate('{{#hellos}}{{this/text}}{{/hellos}}')
+      .withInput({
+        hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
+      })
+      .withMessage('This keyword evaluates in more complex paths')
+      .toCompileTo('helloHelloHELLO');
   });
 
   it('this keyword nested inside path', function() {
-    shouldThrow(
-      function() {
-        CompilerContext.compile('{{#hellos}}{{text/this/foo}}{{/hellos}}');
-      },
+    expectTemplate('{{#hellos}}{{text/this/foo}}{{/hellos}}').toThrow(
       Error,
       'Invalid path: text/this - 1:13'
     );
 
-    shouldCompileTo('{{[this]}}', { this: 'bar' }, 'bar');
-    shouldCompileTo('{{text/[this]}}', { text: { this: 'bar' } }, 'bar');
+    expectTemplate('{{[this]}}')
+      .withInput({ this: 'bar' })
+      .toCompileTo('bar');
+
+    expectTemplate('{{text/[this]}}')
+      .withInput({ text: { this: 'bar' } })
+      .toCompileTo('bar');
   });
 
   it('this keyword in helpers', function() {
@@ -501,108 +492,105 @@ describe('basic context', function() {
         return 'bar ' + value;
       }
     };
-    var string = '{{#goodbyes}}{{foo this}}{{/goodbyes}}';
-    var hash = { goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      'bar goodbyebar Goodbyebar GOODBYE',
-      'This keyword in paths evaluates to current context'
-    );
 
-    string = '{{#hellos}}{{foo this/text}}{{/hellos}}';
-    hash = {
-      hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      'bar hellobar Hellobar HELLO',
-      'This keyword evaluates in more complex paths'
-    );
+    expectTemplate('{{#goodbyes}}{{foo this}}{{/goodbyes}}')
+      .withInput({ goodbyes: ['goodbye', 'Goodbye', 'GOODBYE'] })
+      .withHelpers(helpers)
+      .withMessage('This keyword in paths evaluates to current context')
+      .toCompileTo('bar goodbyebar Goodbyebar GOODBYE');
+
+    expectTemplate('{{#hellos}}{{foo this/text}}{{/hellos}}')
+      .withInput({
+        hellos: [{ text: 'hello' }, { text: 'Hello' }, { text: 'HELLO' }]
+      })
+      .withHelpers(helpers)
+      .withMessage('This keyword evaluates in more complex paths')
+      .toCompileTo('bar hellobar Hellobar HELLO');
   });
 
   it('this keyword nested inside helpers param', function() {
-    var string = '{{#hellos}}{{foo text/this/foo}}{{/hellos}}';
-    shouldThrow(
-      function() {
-        CompilerContext.compile(string);
-      },
+    expectTemplate('{{#hellos}}{{foo text/this/foo}}{{/hellos}}').toThrow(
       Error,
       'Invalid path: text/this - 1:17'
     );
 
-    shouldCompileTo(
-      '{{foo [this]}}',
-      {
+    expectTemplate('{{foo [this]}}')
+      .withInput({
         foo: function(value) {
           return value;
         },
         this: 'bar'
-      },
-      'bar'
-    );
-    shouldCompileTo(
-      '{{foo text/[this]}}',
-      {
+      })
+      .toCompileTo('bar');
+
+    expectTemplate('{{foo text/[this]}}')
+      .withInput({
         foo: function(value) {
           return value;
         },
         text: { this: 'bar' }
-      },
-      'bar'
-    );
+      })
+      .toCompileTo('bar');
   });
 
   it('pass string literals', function() {
-    shouldCompileTo('{{"foo"}}', {}, '');
-    shouldCompileTo('{{"foo"}}', { foo: 'bar' }, 'bar');
-    shouldCompileTo(
-      '{{#"foo"}}{{.}}{{/"foo"}}',
-      { foo: ['bar', 'baz'] },
-      'barbaz'
-    );
+    expectTemplate('{{"foo"}}').toCompileTo('');
+
+    expectTemplate('{{"foo"}}')
+      .withInput({ foo: 'bar' })
+      .toCompileTo('bar');
+
+    expectTemplate('{{#"foo"}}{{.}}{{/"foo"}}')
+      .withInput({
+        foo: ['bar', 'baz']
+      })
+      .toCompileTo('barbaz');
   });
 
   it('pass number literals', function() {
-    shouldCompileTo('{{12}}', {}, '');
-    shouldCompileTo('{{12}}', { '12': 'bar' }, 'bar');
-    shouldCompileTo('{{12.34}}', {}, '');
-    shouldCompileTo('{{12.34}}', { '12.34': 'bar' }, 'bar');
-    shouldCompileTo(
-      '{{12.34 1}}',
-      {
+    expectTemplate('{{12}}').toCompileTo('');
+
+    expectTemplate('{{12}}')
+      .withInput({ '12': 'bar' })
+      .toCompileTo('bar');
+
+    expectTemplate('{{12.34}}').toCompileTo('');
+
+    expectTemplate('{{12.34}}')
+      .withInput({ '12.34': 'bar' })
+      .toCompileTo('bar');
+
+    expectTemplate('{{12.34 1}}')
+      .withInput({
         '12.34': function(arg) {
           return 'bar' + arg;
         }
-      },
-      'bar1'
-    );
+      })
+      .toCompileTo('bar1');
   });
 
   it('pass boolean literals', function() {
-    shouldCompileTo('{{true}}', {}, '');
-    shouldCompileTo('{{true}}', { '': 'foo' }, '');
-    shouldCompileTo('{{false}}', { false: 'foo' }, 'foo');
+    expectTemplate('{{true}}').toCompileTo('');
+
+    expectTemplate('{{true}}')
+      .withInput({ '': 'foo' })
+      .toCompileTo('');
+
+    expectTemplate('{{false}}')
+      .withInput({ false: 'foo' })
+      .toCompileTo('foo');
   });
 
   it('should handle literals in subexpression', function() {
-    var helpers = {
-      foo: function(arg) {
+    expectTemplate('{{foo (false)}}')
+      .withInput({
+        false: function() {
+          return 'bar';
+        }
+      })
+      .withHelper('foo', function(arg) {
         return arg;
-      }
-    };
-    shouldCompileTo(
-      '{{foo (false)}}',
-      [
-        {
-          false: function() {
-            return 'bar';
-          }
-        },
-        helpers
-      ],
-      'bar'
-    );
+      })
+      .toCompileTo('bar');
   });
 });
diff --git a/spec/blocks.js b/spec/blocks.js
index ad534aaba..f15655428 100644
--- a/spec/blocks.js
+++ b/spec/blocks.js
@@ -1,455 +1,405 @@
 describe('blocks', function() {
   it('array', function() {
     var string = '{{#goodbyes}}{{text}}! {{/goodbyes}}cruel {{world}}!';
-    var hash = {
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
-      world: 'world'
-    };
-    shouldCompileTo(
-      string,
-      hash,
-      'goodbye! Goodbye! GOODBYE! cruel world!',
-      'Arrays iterate over the contents when not empty'
-    );
-
-    shouldCompileTo(
-      string,
-      { goodbyes: [], world: 'world' },
-      'cruel world!',
-      'Arrays ignore the contents when empty'
-    );
+
+    expectTemplate(string)
+      .withInput({
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      })
+      .withMessage('Arrays iterate over the contents when not empty')
+      .toCompileTo('goodbye! Goodbye! GOODBYE! cruel world!');
+
+    expectTemplate(string)
+      .withInput({
+        goodbyes: [],
+        world: 'world'
+      })
+      .withMessage('Arrays ignore the contents when empty')
+      .toCompileTo('cruel world!');
   });
 
   it('array without data', function() {
-    var string =
-      '{{#goodbyes}}{{text}}{{/goodbyes}} {{#goodbyes}}{{text}}{{/goodbyes}}';
-    var hash = {
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
-      world: 'world'
-    };
-    shouldCompileTo(
-      string,
-      [hash, , , false],
-      'goodbyeGoodbyeGOODBYE goodbyeGoodbyeGOODBYE'
-    );
+    expectTemplate(
+      '{{#goodbyes}}{{text}}{{/goodbyes}} {{#goodbyes}}{{text}}{{/goodbyes}}'
+    )
+      .withInput({
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      })
+      .withCompileOptions({ compat: false })
+      .toCompileTo('goodbyeGoodbyeGOODBYE goodbyeGoodbyeGOODBYE');
   });
 
   it('array with @index', function() {
-    var string =
-      '{{#goodbyes}}{{@index}}. {{text}}! {{/goodbyes}}cruel {{world}}!';
-    var hash = {
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
-      world: 'world'
-    };
-
-    var template = CompilerContext.compile(string);
-    var result = template(hash);
-
-    equal(
-      result,
-      '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
-      'The @index variable is used'
-    );
+    expectTemplate(
+      '{{#goodbyes}}{{@index}}. {{text}}! {{/goodbyes}}cruel {{world}}!'
+    )
+      .withInput({
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      })
+      .withMessage('The @index variable is used')
+      .toCompileTo('0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!');
   });
 
   it('empty block', function() {
     var string = '{{#goodbyes}}{{/goodbyes}}cruel {{world}}!';
-    var hash = {
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }],
-      world: 'world'
-    };
-    shouldCompileTo(
-      string,
-      hash,
-      'cruel world!',
-      'Arrays iterate over the contents when not empty'
-    );
-
-    shouldCompileTo(
-      string,
-      { goodbyes: [], world: 'world' },
-      'cruel world!',
-      'Arrays ignore the contents when empty'
-    );
+
+    expectTemplate(string)
+      .withInput({
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ],
+        world: 'world'
+      })
+      .withMessage('Arrays iterate over the contents when not empty')
+      .toCompileTo('cruel world!');
+
+    expectTemplate(string)
+      .withInput({
+        goodbyes: [],
+        world: 'world'
+      })
+      .withMessage('Arrays ignore the contents when empty')
+      .toCompileTo('cruel world!');
   });
 
   it('block with complex lookup', function() {
-    var string = '{{#goodbyes}}{{text}} cruel {{../name}}! {{/goodbyes}}';
-    var hash = {
-      name: 'Alan',
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }]
-    };
-
-    shouldCompileTo(
-      string,
-      hash,
-      'goodbye cruel Alan! Goodbye cruel Alan! GOODBYE cruel Alan! ',
-      'Templates can access variables in contexts up the stack with relative path syntax'
-    );
+    expectTemplate('{{#goodbyes}}{{text}} cruel {{../name}}! {{/goodbyes}}')
+      .withInput({
+        name: 'Alan',
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ]
+      })
+      .withMessage(
+        'Templates can access variables in contexts up the stack with relative path syntax'
+      )
+      .toCompileTo(
+        'goodbye cruel Alan! Goodbye cruel Alan! GOODBYE cruel Alan! '
+      );
   });
 
   it('multiple blocks with complex lookup', function() {
-    var string = '{{#goodbyes}}{{../name}}{{../name}}{{/goodbyes}}';
-    var hash = {
-      name: 'Alan',
-      goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }, { text: 'GOODBYE' }]
-    };
-
-    shouldCompileTo(string, hash, 'AlanAlanAlanAlanAlanAlan');
+    expectTemplate('{{#goodbyes}}{{../name}}{{../name}}{{/goodbyes}}')
+      .withInput({
+        name: 'Alan',
+        goodbyes: [
+          { text: 'goodbye' },
+          { text: 'Goodbye' },
+          { text: 'GOODBYE' }
+        ]
+      })
+      .toCompileTo('AlanAlanAlanAlanAlanAlan');
   });
 
   it('block with complex lookup using nested context', function() {
-    var string = '{{#goodbyes}}{{text}} cruel {{foo/../name}}! {{/goodbyes}}';
-
-    shouldThrow(function() {
-      CompilerContext.compile(string);
-    }, Error);
+    expectTemplate(
+      '{{#goodbyes}}{{text}} cruel {{foo/../name}}! {{/goodbyes}}'
+    ).toThrow(Error);
   });
 
   it('block with deep nested complex lookup', function() {
-    var string =
-      '{{#outer}}Goodbye {{#inner}}cruel {{../sibling}} {{../../omg}}{{/inner}}{{/outer}}';
-    var hash = {
-      omg: 'OMG!',
-      outer: [{ sibling: 'sad', inner: [{ text: 'goodbye' }] }]
-    };
-
-    shouldCompileTo(string, hash, 'Goodbye cruel sad OMG!');
+    expectTemplate(
+      '{{#outer}}Goodbye {{#inner}}cruel {{../sibling}} {{../../omg}}{{/inner}}{{/outer}}'
+    )
+      .withInput({
+        omg: 'OMG!',
+        outer: [{ sibling: 'sad', inner: [{ text: 'goodbye' }] }]
+      })
+      .toCompileTo('Goodbye cruel sad OMG!');
   });
 
   it('works with cached blocks', function() {
-    var template = CompilerContext.compile(
-      '{{#each person}}{{#with .}}{{first}} {{last}}{{/with}}{{/each}}',
-      { data: false }
-    );
-
-    var result = template({
-      person: [
-        { first: 'Alan', last: 'Johnson' },
-        { first: 'Alan', last: 'Johnson' }
-      ]
-    });
-    equals(result, 'Alan JohnsonAlan Johnson');
+    expectTemplate(
+      '{{#each person}}{{#with .}}{{first}} {{last}}{{/with}}{{/each}}'
+    )
+      .withCompileOptions({ data: false })
+      .withInput({
+        person: [
+          { first: 'Alan', last: 'Johnson' },
+          { first: 'Alan', last: 'Johnson' }
+        ]
+      })
+      .toCompileTo('Alan JohnsonAlan Johnson');
   });
 
   describe('inverted sections', function() {
     it('inverted sections with unset value', function() {
-      var string =
-        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
-      var hash = {};
-      shouldCompileTo(
-        string,
-        hash,
-        'Right On!',
-        "Inverted section rendered when value isn't set."
-      );
+      expectTemplate(
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}'
+      )
+        .withMessage("Inverted section rendered when value isn't set.")
+        .toCompileTo('Right On!');
     });
 
     it('inverted section with false value', function() {
-      var string =
-        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
-      var hash = { goodbyes: false };
-      shouldCompileTo(
-        string,
-        hash,
-        'Right On!',
-        'Inverted section rendered when value is false.'
-      );
+      expectTemplate(
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}'
+      )
+        .withInput({ goodbyes: false })
+        .withMessage('Inverted section rendered when value is false.')
+        .toCompileTo('Right On!');
     });
 
     it('inverted section with empty set', function() {
-      var string =
-        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}';
-      var hash = { goodbyes: [] };
-      shouldCompileTo(
-        string,
-        hash,
-        'Right On!',
-        'Inverted section rendered when value is empty set.'
-      );
+      expectTemplate(
+        '{{#goodbyes}}{{this}}{{/goodbyes}}{{^goodbyes}}Right On!{{/goodbyes}}'
+      )
+        .withInput({ goodbyes: [] })
+        .withMessage('Inverted section rendered when value is empty set.')
+        .toCompileTo('Right On!');
     });
 
     it('block inverted sections', function() {
-      shouldCompileTo(
-        '{{#people}}{{name}}{{^}}{{none}}{{/people}}',
-        { none: 'No people' },
-        'No people'
-      );
+      expectTemplate('{{#people}}{{name}}{{^}}{{none}}{{/people}}')
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people');
     });
+
     it('chained inverted sections', function() {
-      shouldCompileTo(
-        '{{#people}}{{name}}{{else if none}}{{none}}{{/people}}',
-        { none: 'No people' },
-        'No people'
-      );
-      shouldCompileTo(
-        '{{#people}}{{name}}{{else if nothere}}fail{{else unless nothere}}{{none}}{{/people}}',
-        { none: 'No people' },
-        'No people'
-      );
-      shouldCompileTo(
-        '{{#people}}{{name}}{{else if none}}{{none}}{{else}}fail{{/people}}',
-        { none: 'No people' },
-        'No people'
-      );
+      expectTemplate('{{#people}}{{name}}{{else if none}}{{none}}{{/people}}')
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people');
+
+      expectTemplate(
+        '{{#people}}{{name}}{{else if nothere}}fail{{else unless nothere}}{{none}}{{/people}}'
+      )
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people');
+
+      expectTemplate(
+        '{{#people}}{{name}}{{else if none}}{{none}}{{else}}fail{{/people}}'
+      )
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people');
     });
+
     it('chained inverted sections with mismatch', function() {
-      shouldThrow(function() {
-        shouldCompileTo(
-          '{{#people}}{{name}}{{else if none}}{{none}}{{/if}}',
-          { none: 'No people' },
-          'No people'
-        );
-      }, Error);
+      expectTemplate(
+        '{{#people}}{{name}}{{else if none}}{{none}}{{/if}}'
+      ).toThrow(Error);
     });
 
     it('block inverted sections with empty arrays', function() {
-      shouldCompileTo(
-        '{{#people}}{{name}}{{^}}{{none}}{{/people}}',
-        { none: 'No people', people: [] },
-        'No people'
-      );
+      expectTemplate('{{#people}}{{name}}{{^}}{{none}}{{/people}}')
+        .withInput({
+          none: 'No people',
+          people: []
+        })
+        .toCompileTo('No people');
     });
   });
 
   describe('standalone sections', function() {
     it('block standalone else sections', function() {
-      shouldCompileTo(
-        '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
-        { none: 'No people' },
-        'No people\n'
-      );
-      shouldCompileTo(
-        '{{#none}}\n{{.}}\n{{^}}\n{{none}}\n{{/none}}\n',
-        { none: 'No people' },
-        'No people\n'
-      );
-      shouldCompileTo(
-        '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
-        { none: 'No people' },
-        'No people\n'
-      );
+      expectTemplate('{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n')
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people\n');
+
+      expectTemplate('{{#none}}\n{{.}}\n{{^}}\n{{none}}\n{{/none}}\n')
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people\n');
+
+      expectTemplate('{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n')
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people\n');
     });
+
     it('block standalone else sections can be disabled', function() {
-      shouldCompileTo(
-        '{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n',
-        [{ none: 'No people' }, {}, {}, { ignoreStandalone: true }],
-        '\nNo people\n\n'
-      );
-      shouldCompileTo(
-        '{{#none}}\n{{.}}\n{{^}}\nFail\n{{/none}}\n',
-        [{ none: 'No people' }, {}, {}, { ignoreStandalone: true }],
-        '\nNo people\n\n'
-      );
+      expectTemplate('{{#people}}\n{{name}}\n{{^}}\n{{none}}\n{{/people}}\n')
+        .withInput({ none: 'No people' })
+        .withCompileOptions({ ignoreStandalone: true })
+        .toCompileTo('\nNo people\n\n');
+
+      expectTemplate('{{#none}}\n{{.}}\n{{^}}\nFail\n{{/none}}\n')
+        .withInput({ none: 'No people' })
+        .withCompileOptions({ ignoreStandalone: true })
+        .toCompileTo('\nNo people\n\n');
     });
+
     it('block standalone chained else sections', function() {
-      shouldCompileTo(
-        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{/people}}\n',
-        { none: 'No people' },
-        'No people\n'
-      );
-      shouldCompileTo(
-        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{^}}\n{{/people}}\n',
-        { none: 'No people' },
-        'No people\n'
-      );
+      expectTemplate(
+        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{/people}}\n'
+      )
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people\n');
+
+      expectTemplate(
+        '{{#people}}\n{{name}}\n{{else if none}}\n{{none}}\n{{^}}\n{{/people}}\n'
+      )
+        .withInput({ none: 'No people' })
+        .toCompileTo('No people\n');
     });
+
     it('should handle nesting', function() {
-      shouldCompileTo(
-        '{{#data}}\n{{#if true}}\n{{.}}\n{{/if}}\n{{/data}}\nOK.',
-        { data: [1, 3, 5] },
-        '1\n3\n5\nOK.'
-      );
+      expectTemplate('{{#data}}\n{{#if true}}\n{{.}}\n{{/if}}\n{{/data}}\nOK.')
+        .withInput({
+          data: [1, 3, 5]
+        })
+        .toCompileTo('1\n3\n5\nOK.');
     });
   });
 
   describe('compat mode', function() {
     it('block with deep recursive lookup lookup', function() {
-      var string =
-        '{{#outer}}Goodbye {{#inner}}cruel {{omg}}{{/inner}}{{/outer}}';
-      var hash = { omg: 'OMG!', outer: [{ inner: [{ text: 'goodbye' }] }] };
-
-      shouldCompileTo(
-        string,
-        [hash, undefined, undefined, true],
-        'Goodbye cruel OMG!'
-      );
+      expectTemplate(
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg}}{{/inner}}{{/outer}}'
+      )
+        .withInput({ omg: 'OMG!', outer: [{ inner: [{ text: 'goodbye' }] }] })
+        .withCompileOptions({ compat: true })
+        .toCompileTo('Goodbye cruel OMG!');
     });
 
     it('block with deep recursive pathed lookup', function() {
-      var string =
-        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
-      var hash = {
-        omg: { yes: 'OMG!' },
-        outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
-      };
-
-      shouldCompileTo(
-        string,
-        [hash, undefined, undefined, true],
-        'Goodbye cruel OMG!'
-      );
+      expectTemplate(
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}'
+      )
+        .withInput({
+          omg: { yes: 'OMG!' },
+          outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
+        })
+        .withCompileOptions({ compat: true })
+        .toCompileTo('Goodbye cruel OMG!');
     });
+
     it('block with missed recursive lookup', function() {
-      var string =
-        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}';
-      var hash = {
-        omg: { no: 'OMG!' },
-        outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
-      };
-
-      shouldCompileTo(
-        string,
-        [hash, undefined, undefined, true],
-        'Goodbye cruel '
-      );
+      expectTemplate(
+        '{{#outer}}Goodbye {{#inner}}cruel {{omg.yes}}{{/inner}}{{/outer}}'
+      )
+        .withInput({
+          omg: { no: 'OMG!' },
+          outer: [{ inner: [{ yes: 'no', text: 'goodbye' }] }]
+        })
+        .withCompileOptions({ compat: true })
+        .toCompileTo('Goodbye cruel ');
     });
   });
 
   describe('decorators', function() {
     it('should apply mustache decorators', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate('{{#helper}}{{*decorator}}{{/helper}}')
+        .withHelper('helper', function(options) {
           return options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn) {
+        })
+        .withDecorator('decorator', function(fn) {
           fn.run = 'success';
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{*decorator}}{{/helper}}',
-        { hash: {}, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .toCompileTo('success');
     });
+
     it('should apply allow undefined return', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate('{{#helper}}{{*decorator}}suc{{/helper}}')
+        .withHelper('helper', function(options) {
           return options.fn() + options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn) {
+        })
+        .withDecorator('decorator', function(fn) {
           fn.run = 'cess';
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{*decorator}}suc{{/helper}}',
-        { hash: {}, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .toCompileTo('success');
     });
 
     it('should apply block decorators', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate(
+        '{{#helper}}{{#*decorator}}success{{/decorator}}{{/helper}}'
+      )
+        .withHelper('helper', function(options) {
           return options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn, props, container, options) {
+        })
+        .withDecorator('decorator', function(fn, props, container, options) {
           fn.run = options.fn();
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{#*decorator}}success{{/decorator}}{{/helper}}',
-        { hash: {}, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .toCompileTo('success');
     });
+
     it('should support nested decorators', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate(
+        '{{#helper}}{{#*decorator}}{{#*nested}}suc{{/nested}}cess{{/decorator}}{{/helper}}'
+      )
+        .withHelper('helper', function(options) {
           return options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn, props, container, options) {
-          fn.run = options.fn.nested + options.fn();
-          return fn;
-        },
-        nested: function(fn, props, container, options) {
-          props.nested = options.fn();
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{#*decorator}}{{#*nested}}suc{{/nested}}cess{{/decorator}}{{/helper}}',
-        { hash: {}, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .withDecorators({
+          decorator: function(fn, props, container, options) {
+            fn.run = options.fn.nested + options.fn();
+            return fn;
+          },
+          nested: function(fn, props, container, options) {
+            props.nested = options.fn();
+          }
+        })
+        .toCompileTo('success');
     });
 
     it('should apply multiple decorators', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate(
+        '{{#helper}}{{#*decorator}}suc{{/decorator}}{{#*decorator}}cess{{/decorator}}{{/helper}}'
+      )
+        .withHelper('helper', function(options) {
           return options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn, props, container, options) {
+        })
+        .withDecorator('decorator', function(fn, props, container, options) {
           fn.run = (fn.run || '') + options.fn();
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{#*decorator}}suc{{/decorator}}{{#*decorator}}cess{{/decorator}}{{/helper}}',
-        { hash: {}, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .toCompileTo('success');
     });
 
     it('should access parent variables', function() {
-      var helpers = {
-        helper: function(options) {
+      expectTemplate('{{#helper}}{{*decorator foo}}{{/helper}}')
+        .withHelper('helper', function(options) {
           return options.fn.run;
-        }
-      };
-      var decorators = {
-        decorator: function(fn, props, container, options) {
+        })
+        .withDecorator('decorator', function(fn, props, container, options) {
           fn.run = options.args;
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{#helper}}{{*decorator foo}}{{/helper}}',
-        { hash: { foo: 'success' }, helpers: helpers, decorators: decorators },
-        'success'
-      );
+        })
+        .withInput({ foo: 'success' })
+        .toCompileTo('success');
     });
+
     it('should work with root program', function() {
       var run;
-      var decorators = {
-        decorator: function(fn, props, container, options) {
+      expectTemplate('{{*decorator "success"}}')
+        .withDecorator('decorator', function(fn, props, container, options) {
           equals(options.args[0], 'success');
           run = true;
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{*decorator "success"}}',
-        { hash: { foo: 'success' }, decorators: decorators },
-        ''
-      );
+        })
+        .withInput({ foo: 'success' })
+        .toCompileTo('');
       equals(run, true);
     });
+
     it('should fail when accessing variables from root', function() {
       var run;
-      var decorators = {
-        decorator: function(fn, props, container, options) {
+      expectTemplate('{{*decorator foo}}')
+        .withDecorator('decorator', function(fn, props, container, options) {
           equals(options.args[0], undefined);
           run = true;
           return fn;
-        }
-      };
-      shouldCompileTo(
-        '{{*decorator foo}}',
-        { hash: { foo: 'fail' }, decorators: decorators },
-        ''
-      );
+        })
+        .withInput({ foo: 'fail' })
+        .toCompileTo('');
       equals(run, true);
     });
 
@@ -481,6 +431,7 @@ describe('blocks', function() {
         equals(handlebarsEnv.decorators.foo, undefined);
         equals(handlebarsEnv.decorators.bar, undefined);
       });
+
       it('fails with multiple and args', function() {
         shouldThrow(
           function() {
diff --git a/spec/builtins.js b/spec/builtins.js
index c74092e1b..a43fb81f5 100644
--- a/spec/builtins.js
+++ b/spec/builtins.js
@@ -2,157 +2,184 @@ describe('builtin helpers', function() {
   describe('#if', function() {
     it('if', function() {
       var string = '{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!';
-      shouldCompileTo(
-        string,
-        { goodbye: true, world: 'world' },
-        'GOODBYE cruel world!',
-        'if with boolean argument shows the contents when true'
-      );
-      shouldCompileTo(
-        string,
-        { goodbye: 'dummy', world: 'world' },
-        'GOODBYE cruel world!',
-        'if with string argument shows the contents'
-      );
-      shouldCompileTo(
-        string,
-        { goodbye: false, world: 'world' },
-        'cruel world!',
-        'if with boolean argument does not show the contents when false'
-      );
-      shouldCompileTo(
-        string,
-        { world: 'world' },
-        'cruel world!',
-        'if with undefined does not show the contents'
-      );
-      shouldCompileTo(
-        string,
-        { goodbye: ['foo'], world: 'world' },
-        'GOODBYE cruel world!',
-        'if with non-empty array shows the contents'
-      );
-      shouldCompileTo(
-        string,
-        { goodbye: [], world: 'world' },
-        'cruel world!',
-        'if with empty array does not show the contents'
-      );
-      shouldCompileTo(
-        string,
-        { goodbye: 0, world: 'world' },
-        'cruel world!',
-        'if with zero does not show the contents'
-      );
-      shouldCompileTo(
-        '{{#if goodbye includeZero=true}}GOODBYE {{/if}}cruel {{world}}!',
-        { goodbye: 0, world: 'world' },
-        'GOODBYE cruel world!',
-        'if with zero does not show the contents'
-      );
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: true,
+          world: 'world'
+        })
+        .withMessage('if with boolean argument shows the contents when true')
+        .toCompileTo('GOODBYE cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: 'dummy',
+          world: 'world'
+        })
+        .withMessage('if with string argument shows the contents')
+        .toCompileTo('GOODBYE cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: false,
+          world: 'world'
+        })
+        .withMessage(
+          'if with boolean argument does not show the contents when false'
+        )
+        .toCompileTo('cruel world!');
+
+      expectTemplate(string)
+        .withInput({ world: 'world' })
+        .withMessage('if with undefined does not show the contents')
+        .toCompileTo('cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: ['foo'],
+          world: 'world'
+        })
+        .withMessage('if with non-empty array shows the contents')
+        .toCompileTo('GOODBYE cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: [],
+          world: 'world'
+        })
+        .withMessage('if with empty array does not show the contents')
+        .toCompileTo('cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbye: 0,
+          world: 'world'
+        })
+        .withMessage('if with zero does not show the contents')
+        .toCompileTo('cruel world!');
+
+      expectTemplate(
+        '{{#if goodbye includeZero=true}}GOODBYE {{/if}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbye: 0,
+          world: 'world'
+        })
+        .withMessage('if with zero does not show the contents')
+        .toCompileTo('GOODBYE cruel world!');
     });
 
     it('if with function argument', function() {
       var string = '{{#if goodbye}}GOODBYE {{/if}}cruel {{world}}!';
-      shouldCompileTo(
-        string,
-        {
+
+      expectTemplate(string)
+        .withInput({
           goodbye: function() {
             return true;
           },
           world: 'world'
-        },
-        'GOODBYE cruel world!',
-        'if with function shows the contents when function returns true'
-      );
-      shouldCompileTo(
-        string,
-        {
+        })
+        .withMessage(
+          'if with function shows the contents when function returns true'
+        )
+        .toCompileTo('GOODBYE cruel world!');
+
+      expectTemplate(string)
+        .withInput({
           goodbye: function() {
             return this.world;
           },
           world: 'world'
-        },
-        'GOODBYE cruel world!',
-        'if with function shows the contents when function returns string'
-      );
-      shouldCompileTo(
-        string,
-        {
+        })
+        .withMessage(
+          'if with function shows the contents when function returns string'
+        )
+        .toCompileTo('GOODBYE cruel world!');
+
+      expectTemplate(string)
+        .withInput({
           goodbye: function() {
             return false;
           },
           world: 'world'
-        },
-        'cruel world!',
-        'if with function does not show the contents when returns false'
-      );
-      shouldCompileTo(
-        string,
-        {
+        })
+        .withMessage(
+          'if with function does not show the contents when returns false'
+        )
+        .toCompileTo('cruel world!');
+
+      expectTemplate(string)
+        .withInput({
           goodbye: function() {
             return this.foo;
           },
           world: 'world'
-        },
-        'cruel world!',
-        'if with function does not show the contents when returns undefined'
-      );
+        })
+        .withMessage(
+          'if with function does not show the contents when returns undefined'
+        )
+        .toCompileTo('cruel world!');
     });
 
     it('should not change the depth list', function() {
-      var string =
-        '{{#with foo}}{{#if goodbye}}GOODBYE cruel {{../world}}!{{/if}}{{/with}}';
-      shouldCompileTo(
-        string,
-        { foo: { goodbye: true }, world: 'world' },
-        'GOODBYE cruel world!'
-      );
+      expectTemplate(
+        '{{#with foo}}{{#if goodbye}}GOODBYE cruel {{../world}}!{{/if}}{{/with}}'
+      )
+        .withInput({
+          foo: { goodbye: true },
+          world: 'world'
+        })
+        .toCompileTo('GOODBYE cruel world!');
     });
   });
 
   describe('#with', function() {
     it('with', function() {
-      var string = '{{#with person}}{{first}} {{last}}{{/with}}';
-      shouldCompileTo(
-        string,
-        { person: { first: 'Alan', last: 'Johnson' } },
-        'Alan Johnson'
-      );
+      expectTemplate('{{#with person}}{{first}} {{last}}{{/with}}')
+        .withInput({
+          person: {
+            first: 'Alan',
+            last: 'Johnson'
+          }
+        })
+        .toCompileTo('Alan Johnson');
     });
+
     it('with with function argument', function() {
-      var string = '{{#with person}}{{first}} {{last}}{{/with}}';
-      shouldCompileTo(
-        string,
-        {
+      expectTemplate('{{#with person}}{{first}} {{last}}{{/with}}')
+        .withInput({
           person: function() {
-            return { first: 'Alan', last: 'Johnson' };
+            return {
+              first: 'Alan',
+              last: 'Johnson'
+            };
           }
-        },
-        'Alan Johnson'
-      );
+        })
+        .toCompileTo('Alan Johnson');
     });
+
     it('with with else', function() {
-      var string =
-        '{{#with person}}Person is present{{else}}Person is not present{{/with}}';
-      shouldCompileTo(string, {}, 'Person is not present');
+      expectTemplate(
+        '{{#with person}}Person is present{{else}}Person is not present{{/with}}'
+      ).toCompileTo('Person is not present');
     });
+
     it('with provides block parameter', function() {
-      var string = '{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}';
-      shouldCompileTo(
-        string,
-        { person: { first: 'Alan', last: 'Johnson' } },
-        'Alan Johnson'
-      );
+      expectTemplate('{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}')
+        .withInput({
+          person: {
+            first: 'Alan',
+            last: 'Johnson'
+          }
+        })
+        .toCompileTo('Alan Johnson');
     });
-    it('works when data is disabled', function() {
-      var template = CompilerContext.compile(
-        '{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}',
-        { data: false }
-      );
 
-      var result = template({ person: { first: 'Alan', last: 'Johnson' } });
-      equals(result, 'Alan Johnson');
+    it('works when data is disabled', function() {
+      expectTemplate('{{#with person as |foo|}}{{foo.first}} {{last}}{{/with}}')
+        .withInput({ person: { first: 'Alan', last: 'Johnson' } })
+        .withCompileOptions({ data: false })
+        .toCompileTo('Alan Johnson');
     });
   });
 
@@ -165,55 +192,55 @@ describe('builtin helpers', function() {
 
     it('each', function() {
       var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-      shouldCompileTo(
-        string,
-        hash,
-        'goodbye! Goodbye! GOODBYE! cruel world!',
-        'each with array argument iterates over the contents when not empty'
-      );
-      shouldCompileTo(
-        string,
-        { goodbyes: [], world: 'world' },
-        'cruel world!',
-        'each with array argument ignores the contents when empty'
-      );
+
+      expectTemplate(string)
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage(
+          'each with array argument iterates over the contents when not empty'
+        )
+        .toCompileTo('goodbye! Goodbye! GOODBYE! cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbyes: [],
+          world: 'world'
+        })
+        .withMessage('each with array argument ignores the contents when empty')
+        .toCompileTo('cruel world!');
     });
 
     it('each without data', function() {
-      var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-      shouldCompileTo(
-        string,
-        [hash, , , , false],
-        'goodbye! Goodbye! GOODBYE! cruel world!'
-      );
+      expectTemplate('{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!')
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withRuntimeOptions({ data: false })
+        .withCompileOptions({ data: false })
+        .toCompileTo('goodbye! Goodbye! GOODBYE! cruel world!');
 
-      hash = { goodbyes: 'cruel', world: 'world' };
-      shouldCompileTo(
-        '{{#each .}}{{.}}{{/each}}',
-        [hash, , , , false],
-        'cruelworld'
-      );
+      expectTemplate('{{#each .}}{{.}}{{/each}}')
+        .withInput({ goodbyes: 'cruel', world: 'world' })
+        .withRuntimeOptions({ data: false })
+        .withCompileOptions({ data: false })
+        .toCompileTo('cruelworld');
     });
 
     it('each without context', function() {
-      var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      shouldCompileTo(string, [, , , ,], 'cruel !');
+      expectTemplate('{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!')
+        .withInput(undefined)
+        .toCompileTo('cruel !');
     });
 
     it('each with an object and @key', function() {
@@ -241,269 +268,232 @@ describe('builtin helpers', function() {
         true,
         'each with object argument iterates over the contents when not empty'
       );
-      shouldCompileTo(string, { goodbyes: {}, world: 'world' }, 'cruel world!');
+
+      expectTemplate(string)
+        .withInput({
+          goodbyes: {},
+          world: 'world'
+        })
+        .toCompileTo('cruel world!');
     });
 
     it('each with @index', function() {
-      var string =
-        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
-        'The @index variable is used'
-      );
+      expectTemplate(
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage('The @index variable is used')
+        .toCompileTo('0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!');
     });
 
     it('each with nested @index', function() {
-      var string =
-        '{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!',
-        'The @index variable is used'
-      );
+      expectTemplate(
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{#each ../goodbyes}}{{@index}} {{/each}}After {{@index}} {{/each}}{{@index}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage('The @index variable is used')
+        .toCompileTo(
+          '0. goodbye! 0 1 2 After 0 1. Goodbye! 0 1 2 After 1 2. GOODBYE! 0 1 2 After 2 cruel world!'
+        );
     });
 
     it('each with block params', function() {
-      var string =
-        '{{#each goodbyes as |value index|}}{{index}}. {{value.text}}! {{#each ../goodbyes as |childValue childIndex|}} {{index}} {{childIndex}}{{/each}} After {{index}} {{/each}}{{index}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '0. goodbye!  0 0 0 1 After 0 1. Goodbye!  1 0 1 1 After 1 cruel world!'
-      );
+      expectTemplate(
+        '{{#each goodbyes as |value index|}}{{index}}. {{value.text}}! {{#each ../goodbyes as |childValue childIndex|}} {{index}} {{childIndex}}{{/each}} After {{index}} {{/each}}{{index}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [{ text: 'goodbye' }, { text: 'Goodbye' }],
+          world: 'world'
+        })
+        .toCompileTo(
+          '0. goodbye!  0 0 0 1 After 0 1. Goodbye!  1 0 1 1 After 1 cruel world!'
+        );
     });
 
     it('each object with @index', function() {
-      var string =
-        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: {
-          a: { text: 'goodbye' },
-          b: { text: 'Goodbye' },
-          c: { text: 'GOODBYE' }
-        },
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
-        'The @index variable is used'
-      );
+      expectTemplate(
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: {
+            a: { text: 'goodbye' },
+            b: { text: 'Goodbye' },
+            c: { text: 'GOODBYE' }
+          },
+          world: 'world'
+        })
+        .withMessage('The @index variable is used')
+        .toCompileTo('0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!');
     });
 
     it('each with @first', function() {
-      var string =
-        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, 'goodbye! cruel world!', 'The @first variable is used');
+      expectTemplate(
+        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage('The @first variable is used')
+        .toCompileTo('goodbye! cruel world!');
     });
 
     it('each with nested @first', function() {
-      var string =
-        '{{#each goodbyes}}({{#if @first}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @first}}{{text}}!{{/if}}{{/each}}{{#if @first}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '(goodbye! goodbye! goodbye!) (goodbye!) (goodbye!) cruel world!',
-        'The @first variable is used'
-      );
+      expectTemplate(
+        '{{#each goodbyes}}({{#if @first}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @first}}{{text}}!{{/if}}{{/each}}{{#if @first}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage('The @first variable is used')
+        .toCompileTo(
+          '(goodbye! goodbye! goodbye!) (goodbye!) (goodbye!) cruel world!'
+        );
     });
 
     it('each object with @first', function() {
-      var string =
-        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, 'goodbye! cruel world!', 'The @first variable is used');
+      expectTemplate(
+        '{{#each goodbyes}}{{#if @first}}{{text}}! {{/if}}{{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
+          world: 'world'
+        })
+        .withMessage('The @first variable is used')
+        .toCompileTo('goodbye! cruel world!');
     });
 
     it('each with @last', function() {
-      var string =
-        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, 'GOODBYE! cruel world!', 'The @last variable is used');
+      expectTemplate(
+        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
+            { text: 'goodbye' },
+            { text: 'Goodbye' },
+            { text: 'GOODBYE' }
+          ],
+          world: 'world'
+        })
+        .withMessage('The @last variable is used')
+        .toCompileTo('GOODBYE! cruel world!');
     });
 
     it('each object with @last', function() {
-      var string =
-        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, 'Goodbye! cruel world!', 'The @last variable is used');
+      expectTemplate(
+        '{{#each goodbyes}}{{#if @last}}{{text}}! {{/if}}{{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: { foo: { text: 'goodbye' }, bar: { text: 'Goodbye' } },
+          world: 'world'
+        })
+        .withMessage('The @last variable is used')
+        .toCompileTo('Goodbye! cruel world!');
     });
 
     it('each with nested @last', function() {
-      var string =
-        '{{#each goodbyes}}({{#if @last}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @last}}{{text}}!{{/if}}{{/each}}{{#if @last}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: [
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ],
-        world: 'world'
-      };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(
-        result,
-        '(GOODBYE!) (GOODBYE!) (GOODBYE! GOODBYE! GOODBYE!) cruel world!',
-        'The @last variable is used'
-      );
-    });
-
-    it('each with function argument', function() {
-      var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: function() {
-          return [
+      expectTemplate(
+        '{{#each goodbyes}}({{#if @last}}{{text}}! {{/if}}{{#each ../goodbyes}}{{#if @last}}{{text}}!{{/if}}{{/each}}{{#if @last}} {{text}}!{{/if}}) {{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: [
             { text: 'goodbye' },
             { text: 'Goodbye' },
             { text: 'GOODBYE' }
-          ];
-        },
-        world: 'world'
-      };
-      shouldCompileTo(
-        string,
-        hash,
-        'goodbye! Goodbye! GOODBYE! cruel world!',
-        'each with array function argument iterates over the contents when not empty'
-      );
-      shouldCompileTo(
-        string,
-        { goodbyes: [], world: 'world' },
-        'cruel world!',
-        'each with array function argument ignores the contents when empty'
-      );
+          ],
+          world: 'world'
+        })
+        .withMessage('The @last variable is used')
+        .toCompileTo(
+          '(GOODBYE!) (GOODBYE!) (GOODBYE! GOODBYE! GOODBYE!) cruel world!'
+        );
     });
 
-    it('each object when last key is an empty string', function() {
-      var string =
-        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!';
-      var hash = {
-        goodbyes: {
-          a: { text: 'goodbye' },
-          b: { text: 'Goodbye' },
-          '': { text: 'GOODBYE' }
-        },
-        world: 'world'
-      };
+    it('each with function argument', function() {
+      var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
 
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
+      expectTemplate(string)
+        .withInput({
+          goodbyes: function() {
+            return [
+              { text: 'goodbye' },
+              { text: 'Goodbye' },
+              { text: 'GOODBYE' }
+            ];
+          },
+          world: 'world'
+        })
+        .withMessage(
+          'each with array function argument iterates over the contents when not empty'
+        )
+        .toCompileTo('goodbye! Goodbye! GOODBYE! cruel world!');
 
-      equal(
-        result,
-        '0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!',
-        'Empty string key is not skipped'
-      );
+      expectTemplate(string)
+        .withInput({
+          goodbyes: [],
+          world: 'world'
+        })
+        .withMessage(
+          'each with array function argument ignores the contents when empty'
+        )
+        .toCompileTo('cruel world!');
     });
 
-    it('data passed to helpers', function() {
-      var string = '{{#each letters}}{{this}}{{detectDataInsideEach}}{{/each}}';
-      var hash = { letters: ['a', 'b', 'c'] };
+    it('each object when last key is an empty string', function() {
+      expectTemplate(
+        '{{#each goodbyes}}{{@index}}. {{text}}! {{/each}}cruel {{world}}!'
+      )
+        .withInput({
+          goodbyes: {
+            a: { text: 'goodbye' },
+            b: { text: 'Goodbye' },
+            '': { text: 'GOODBYE' }
+          },
+          world: 'world'
+        })
+        .withMessage('Empty string key is not skipped')
+        .toCompileTo('0. goodbye! 1. Goodbye! 2. GOODBYE! cruel world!');
+    });
 
-      var template = CompilerContext.compile(string);
-      var result = template(hash, {
-        data: {
-          exclaim: '!'
-        }
-      });
-      equal(result, 'a!b!c!', 'should output data');
+    it('data passed to helpers', function() {
+      expectTemplate(
+        '{{#each letters}}{{this}}{{detectDataInsideEach}}{{/each}}'
+      )
+        .withInput({ letters: ['a', 'b', 'c'] })
+        .withMessage('should output data')
+        .withRuntimeOptions({
+          data: {
+            exclaim: '!'
+          }
+        })
+        .toCompileTo('a!b!c!');
     });
 
     it('each on implicit context', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile(
-            '{{#each}}{{text}}! {{/each}}cruel world!'
-          );
-          template({});
-        },
+      expectTemplate('{{#each}}{{text}}! {{/each}}cruel world!').toThrow(
         handlebarsEnv.Exception,
         'Must pass iterator to #each'
       );
@@ -530,25 +520,30 @@ describe('builtin helpers', function() {
           return new Iterator(this.arr);
         };
         var string = '{{#each goodbyes}}{{text}}! {{/each}}cruel {{world}}!';
-        var goodbyes = new Iterable([
-          { text: 'goodbye' },
-          { text: 'Goodbye' },
-          { text: 'GOODBYE' }
-        ]);
-        var goodbyesEmpty = new Iterable([]);
-        var hash = { goodbyes: goodbyes, world: 'world' };
-        shouldCompileTo(
-          string,
-          hash,
-          'goodbye! Goodbye! GOODBYE! cruel world!',
-          'each with array argument iterates over the contents when not empty'
-        );
-        shouldCompileTo(
-          string,
-          { goodbyes: goodbyesEmpty, world: 'world' },
-          'cruel world!',
-          'each with array argument ignores the contents when empty'
-        );
+
+        expectTemplate(string)
+          .withInput({
+            goodbyes: new Iterable([
+              { text: 'goodbye' },
+              { text: 'Goodbye' },
+              { text: 'GOODBYE' }
+            ]),
+            world: 'world'
+          })
+          .withMessage(
+            'each with array argument iterates over the contents when not empty'
+          )
+          .toCompileTo('goodbye! Goodbye! GOODBYE! cruel world!');
+
+        expectTemplate(string)
+          .withInput({
+            goodbyes: new Iterable([]),
+            world: 'world'
+          })
+          .withMessage(
+            'each with array argument ignores the contents when empty'
+          )
+          .toCompileTo('cruel world!');
       });
     }
   });
@@ -572,36 +567,37 @@ describe('builtin helpers', function() {
     });
 
     it('should call logger at default level', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' };
-
       var levelArg, logArg;
       handlebarsEnv.log = function(level, arg) {
         levelArg = level;
         logArg = arg;
       };
 
-      shouldCompileTo(string, hash, '', 'log should not display');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withMessage('log should not display')
+        .toCompileTo('');
       equals(1, levelArg, 'should call log with 1');
       equals('whee', logArg, "should call log with 'whee'");
     });
-    it('should call logger at data level', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' };
 
+    it('should call logger at data level', function() {
       var levelArg, logArg;
       handlebarsEnv.log = function(level, arg) {
         levelArg = level;
         logArg = arg;
       };
 
-      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withRuntimeOptions({ data: { level: '03' } })
+        .withCompileOptions({ data: true })
+        .toCompileTo('');
       equals('03', levelArg);
       equals('whee', logArg);
     });
+
     it('should output to info', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.info = function(info) {
@@ -617,12 +613,13 @@ describe('builtin helpers', function() {
         console.log = $log;
       };
 
-      shouldCompileTo(string, hash, '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .toCompileTo('');
       equals(true, called);
     });
+
     it('should log at data level', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.error = function(log) {
@@ -631,13 +628,16 @@ describe('builtin helpers', function() {
         console.error = $error;
       };
 
-      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withRuntimeOptions({ data: { level: '03' } })
+        .withCompileOptions({ data: true })
+        .toCompileTo('');
       equals(true, called);
     });
+
     it('should handle missing logger', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' },
-        called = false;
+      var called = false;
 
       console.error = undefined;
       console.log = function(log) {
@@ -646,13 +646,15 @@ describe('builtin helpers', function() {
         console.log = $log;
       };
 
-      shouldCompileTo(string, [hash, , , , { level: '03' }], '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withRuntimeOptions({ data: { level: '03' } })
+        .withCompileOptions({ data: true })
+        .toCompileTo('');
       equals(true, called);
     });
 
     it('should handle string log levels', function() {
-      var string = '{{log blah}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.error = function(log) {
@@ -660,17 +662,24 @@ describe('builtin helpers', function() {
         called = true;
       };
 
-      shouldCompileTo(string, [hash, , , , { level: 'error' }], '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withRuntimeOptions({ data: { level: 'error' } })
+        .withCompileOptions({ data: true })
+        .toCompileTo('');
       equals(true, called);
 
       called = false;
 
-      shouldCompileTo(string, [hash, , , , { level: 'ERROR' }], '');
+      expectTemplate('{{log blah}}')
+        .withInput({ blah: 'whee' })
+        .withRuntimeOptions({ data: { level: 'ERROR' } })
+        .withCompileOptions({ data: true })
+        .toCompileTo('');
       equals(true, called);
     });
+
     it('should handle hash log levels', function() {
-      var string = '{{log blah level="error"}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.error = function(log) {
@@ -678,12 +687,13 @@ describe('builtin helpers', function() {
         called = true;
       };
 
-      shouldCompileTo(string, hash, '');
+      expectTemplate('{{log blah level="error"}}')
+        .withInput({ blah: 'whee' })
+        .toCompileTo('');
       equals(true, called);
     });
+
     it('should handle hash log levels', function() {
-      var string = '{{log blah level="debug"}}';
-      var hash = { blah: 'whee' };
       var called = false;
 
       console.info = console.log = console.error = console.debug = function() {
@@ -691,12 +701,13 @@ describe('builtin helpers', function() {
         console.info = console.log = console.error = console.debug = $log;
       };
 
-      shouldCompileTo(string, hash, '');
+      expectTemplate('{{log blah level="debug"}}')
+        .withInput({ blah: 'whee' })
+        .toCompileTo('');
       equals(false, called);
     });
+
     it('should pass multiple log arguments', function() {
-      var string = '{{log blah "foo" 1}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.info = console.log = function(log1, log2, log3) {
@@ -707,13 +718,13 @@ describe('builtin helpers', function() {
         console.log = $log;
       };
 
-      shouldCompileTo(string, hash, '');
+      expectTemplate('{{log blah "foo" 1}}')
+        .withInput({ blah: 'whee' })
+        .toCompileTo('');
       equals(true, called);
     });
 
     it('should pass zero log arguments', function() {
-      var string = '{{log}}';
-      var hash = { blah: 'whee' };
       var called;
 
       console.info = console.log = function() {
@@ -722,8 +733,8 @@ describe('builtin helpers', function() {
         console.log = $log;
       };
 
-      expectTemplate(string)
-        .withInput(hash)
+      expectTemplate('{{log}}')
+        .withInput({ blah: 'whee' })
         .toCompileTo('');
       expect(called).to.be.true();
     });
@@ -732,22 +743,15 @@ describe('builtin helpers', function() {
 
   describe('#lookup', function() {
     it('should lookup arbitrary content', function() {
-      var string = '{{#each goodbyes}}{{lookup ../data .}}{{/each}}',
-        hash = { goodbyes: [0, 1], data: ['foo', 'bar'] };
-
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, 'foobar');
+      expectTemplate('{{#each goodbyes}}{{lookup ../data .}}{{/each}}')
+        .withInput({ goodbyes: [0, 1], data: ['foo', 'bar'] })
+        .toCompileTo('foobar');
     });
-    it('should not fail on undefined value', function() {
-      var string = '{{#each goodbyes}}{{lookup ../bar .}}{{/each}}',
-        hash = { goodbyes: [0, 1], data: ['foo', 'bar'] };
 
-      var template = CompilerContext.compile(string);
-      var result = template(hash);
-
-      equal(result, '');
+    it('should not fail on undefined value', function() {
+      expectTemplate('{{#each goodbyes}}{{lookup ../bar .}}{{/each}}')
+        .withInput({ goodbyes: [0, 1], data: ['foo', 'bar'] })
+        .toCompileTo('');
     });
   });
 });
diff --git a/spec/data.js b/spec/data.js
index 0defdc14a..bde617326 100644
--- a/spec/data.js
+++ b/spec/data.js
@@ -1,31 +1,24 @@
 describe('data', function() {
   it('passing in data to a compiled function that expects data - works with helpers', function() {
-    var template = CompilerContext.compile('{{hello}}', { data: true });
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{hello}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(options) {
         return options.data.adjective + ' ' + this.noun;
-      }
-    };
-
-    var result = template(
-      { noun: 'cat' },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('happy cat', result, 'Data output by helper');
+      })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withInput({ noun: 'cat' })
+      .withMessage('Data output by helper')
+      .toCompileTo('happy cat');
   });
 
   it('data can be looked up via @foo', function() {
-    var template = CompilerContext.compile('{{@hello}}');
-    var result = template({}, { data: { hello: 'hello' } });
-    equals('hello', result, '@foo retrieves template data');
+    expectTemplate('{{@hello}}')
+      .withRuntimeOptions({ data: { hello: 'hello' } })
+      .withMessage('@foo retrieves template data')
+      .toCompileTo('hello');
   });
 
   it('deep @foo triggers automatic top-level data', function() {
-    var template = CompilerContext.compile(
-      '{{#let world="world"}}{{#if foo}}{{#if foo}}Hello {{@world}}{{/if}}{{/if}}{{/let}}'
-    );
-
     var helpers = Handlebars.createFrame(handlebarsEnv.helpers);
 
     helpers.let = function(options) {
@@ -39,124 +32,92 @@ describe('data', function() {
       return options.fn(this, { data: frame });
     };
 
-    var result = template({ foo: true }, { helpers: helpers });
-    equals('Hello world', result, 'Automatic data was triggered');
+    expectTemplate(
+      '{{#let world="world"}}{{#if foo}}{{#if foo}}Hello {{@world}}{{/if}}{{/if}}{{/let}}'
+    )
+      .withInput({ foo: true })
+      .withHelpers(helpers)
+      .withMessage('Automatic data was triggered')
+      .toCompileTo('Hello world');
   });
 
   it('parameter data can be looked up via @foo', function() {
-    var template = CompilerContext.compile('{{hello @world}}');
-    var helpers = {
-      hello: function(noun) {
+    expectTemplate('{{hello @world}}')
+      .withRuntimeOptions({ data: { world: 'world' } })
+      .withHelper('hello', function(noun) {
         return 'Hello ' + noun;
-      }
-    };
-
-    var result = template({}, { helpers: helpers, data: { world: 'world' } });
-    equals(
-      'Hello world',
-      result,
-      '@foo as a parameter retrieves template data'
-    );
+      })
+      .withMessage('@foo as a parameter retrieves template data')
+      .toCompileTo('Hello world');
   });
 
   it('hash values can be looked up via @foo', function() {
-    var template = CompilerContext.compile('{{hello noun=@world}}');
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{hello noun=@world}}')
+      .withRuntimeOptions({ data: { world: 'world' } })
+      .withHelper('hello', function(options) {
         return 'Hello ' + options.hash.noun;
-      }
-    };
-
-    var result = template({}, { helpers: helpers, data: { world: 'world' } });
-    equals(
-      'Hello world',
-      result,
-      '@foo as a parameter retrieves template data'
-    );
+      })
+      .withMessage('@foo as a parameter retrieves template data')
+      .toCompileTo('Hello world');
   });
 
   it('nested parameter data can be looked up via @foo.bar', function() {
-    var template = CompilerContext.compile('{{hello @world.bar}}');
-    var helpers = {
-      hello: function(noun) {
+    expectTemplate('{{hello @world.bar}}')
+      .withRuntimeOptions({ data: { world: { bar: 'world' } } })
+      .withHelper('hello', function(noun) {
         return 'Hello ' + noun;
-      }
-    };
-
-    var result = template(
-      {},
-      { helpers: helpers, data: { world: { bar: 'world' } } }
-    );
-    equals(
-      'Hello world',
-      result,
-      '@foo as a parameter retrieves template data'
-    );
+      })
+      .withMessage('@foo as a parameter retrieves template data')
+      .toCompileTo('Hello world');
   });
 
   it('nested parameter data does not fail with @world.bar', function() {
-    var template = CompilerContext.compile('{{hello @world.bar}}');
-    var helpers = {
-      hello: function(noun) {
+    expectTemplate('{{hello @world.bar}}')
+      .withRuntimeOptions({ data: { foo: { bar: 'world' } } })
+      .withHelper('hello', function(noun) {
         return 'Hello ' + noun;
-      }
-    };
-
-    var result = template(
-      {},
-      { helpers: helpers, data: { foo: { bar: 'world' } } }
-    );
-    equals(
-      'Hello undefined',
-      result,
-      '@foo as a parameter retrieves template data'
-    );
+      })
+      .withMessage('@foo as a parameter retrieves template data')
+      .toCompileTo('Hello undefined');
   });
 
   it('parameter data throws when using complex scope references', function() {
-    var string = '{{#goodbyes}}{{text}} cruel {{@foo/../name}}! {{/goodbyes}}';
-
-    shouldThrow(function() {
-      CompilerContext.compile(string);
-    }, Error);
+    expectTemplate(
+      '{{#goodbyes}}{{text}} cruel {{@foo/../name}}! {{/goodbyes}}'
+    ).toThrow(Error);
   });
 
   it('data can be functions', function() {
-    var template = CompilerContext.compile('{{@hello}}');
-    var result = template(
-      {},
-      {
+    expectTemplate('{{@hello}}')
+      .withRuntimeOptions({
         data: {
           hello: function() {
             return 'hello';
           }
         }
-      }
-    );
-    equals('hello', result);
+      })
+      .toCompileTo('hello');
   });
+
   it('data can be functions with params', function() {
-    var template = CompilerContext.compile('{{@hello "hello"}}');
-    var result = template(
-      {},
-      {
+    expectTemplate('{{@hello "hello"}}')
+      .withRuntimeOptions({
         data: {
           hello: function(arg) {
             return arg;
           }
         }
-      }
-    );
-    equals('hello', result);
+      })
+      .toCompileTo('hello');
   });
 
   it('data is inherited downstream', function() {
-    var template = CompilerContext.compile(
-      '{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}',
-      { data: true }
-    );
-    var helpers = {
-      let: function(options) {
+    expectTemplate(
+      '{{#let foo=1 bar=2}}{{#let foo=bar.baz}}{{@bar}}{{@foo}}{{/let}}{{@foo}}{{/let}}'
+    )
+      .withInput({ bar: { baz: 'hello world' } })
+      .withCompileOptions({ data: true })
+      .withHelper('let', function(options) {
         var frame = Handlebars.createFrame(options.data);
         for (var prop in options.hash) {
           if (prop in options.hash) {
@@ -164,201 +125,154 @@ describe('data', function() {
           }
         }
         return options.fn(this, { data: frame });
-      }
-    };
-
-    var result = template(
-      { bar: { baz: 'hello world' } },
-      { helpers: helpers, data: {} }
-    );
-    equals('2hello world1', result, 'data variables are inherited downstream');
+      })
+      .withRuntimeOptions({ data: {} })
+      .withMessage('data variables are inherited downstream')
+      .toCompileTo('2hello world1');
   });
 
   it('passing in data to a compiled function that expects data - works with helpers in partials', function() {
-    var template = CompilerContext.compile('{{>myPartial}}', { data: true });
-
-    var partials = {
-      myPartial: CompilerContext.compile('{{hello}}', { data: true })
-    };
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{>myPartial}}')
+      .withCompileOptions({ data: true })
+      .withPartial('myPartial', '{{hello}}')
+      .withHelper('hello', function(options) {
         return options.data.adjective + ' ' + this.noun;
-      }
-    };
-
-    var result = template(
-      { noun: 'cat' },
-      { helpers: helpers, partials: partials, data: { adjective: 'happy' } }
-    );
-    equals('happy cat', result, 'Data output by helper inside partial');
+      })
+      .withInput({ noun: 'cat' })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Data output by helper inside partial')
+      .toCompileTo('happy cat');
   });
 
   it('passing in data to a compiled function that expects data - works with helpers and parameters', function() {
-    var template = CompilerContext.compile('{{hello world}}', { data: true });
-
-    var helpers = {
-      hello: function(noun, options) {
+    expectTemplate('{{hello world}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(noun, options) {
         return options.data.adjective + ' ' + noun + (this.exclaim ? '!' : '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true, world: 'world' },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('happy world!', result, 'Data output by helper');
+      })
+      .withInput({ exclaim: true, world: 'world' })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Data output by helper')
+      .toCompileTo('happy world!');
   });
 
   it('passing in data to a compiled function that expects data - works with block helpers', function() {
-    var template = CompilerContext.compile('{{#hello}}{{world}}{{/hello}}', {
-      data: true
-    });
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{#hello}}{{world}}{{/hello}}')
+      .withCompileOptions({
+        data: true
+      })
+      .withHelper('hello', function(options) {
         return options.fn(this);
-      },
-      world: function(options) {
+      })
+      .withHelper('world', function(options) {
         return options.data.adjective + ' world' + (this.exclaim ? '!' : '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('happy world!', result, 'Data output by helper');
+      })
+      .withInput({ exclaim: true })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Data output by helper')
+      .toCompileTo('happy world!');
   });
 
   it('passing in data to a compiled function that expects data - works with block helpers that use ..', function() {
-    var template = CompilerContext.compile(
-      '{{#hello}}{{world ../zomg}}{{/hello}}',
-      { data: true }
-    );
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{#hello}}{{world ../zomg}}{{/hello}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(options) {
         return options.fn({ exclaim: '?' });
-      },
-      world: function(thing, options) {
+      })
+      .withHelper('world', function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true, zomg: 'world' },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('happy world?', result, 'Data output by helper');
+      })
+      .withInput({ exclaim: true, zomg: 'world' })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Data output by helper')
+      .toCompileTo('happy world?');
   });
 
   it('passing in data to a compiled function that expects data - data is passed to with block helpers where children use ..', function() {
-    var template = CompilerContext.compile(
-      '{{#hello}}{{world ../zomg}}{{/hello}}',
-      { data: true }
-    );
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{#hello}}{{world ../zomg}}{{/hello}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(options) {
         return options.data.accessData + ' ' + options.fn({ exclaim: '?' });
-      },
-      world: function(thing, options) {
+      })
+      .withHelper('world', function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true, zomg: 'world' },
-      { helpers: helpers, data: { adjective: 'happy', accessData: '#win' } }
-    );
-    equals('#win happy world?', result, 'Data output by helper');
+      })
+      .withInput({ exclaim: true, zomg: 'world' })
+      .withRuntimeOptions({ data: { adjective: 'happy', accessData: '#win' } })
+      .withMessage('Data output by helper')
+      .toCompileTo('#win happy world?');
   });
 
   it('you can override inherited data when invoking a helper', function() {
-    var template = CompilerContext.compile(
-      '{{#hello}}{{world zomg}}{{/hello}}',
-      { data: true }
-    );
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{#hello}}{{world zomg}}{{/hello}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(options) {
         return options.fn(
           { exclaim: '?', zomg: 'world' },
           { data: { adjective: 'sad' } }
         );
-      },
-      world: function(thing, options) {
+      })
+      .withHelper('world', function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true, zomg: 'planet' },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('sad world?', result, 'Overriden data output by helper');
+      })
+      .withInput({ exclaim: true, zomg: 'planet' })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Overriden data output by helper')
+      .toCompileTo('sad world?');
   });
 
   it('you can override inherited data when invoking a helper with depth', function() {
-    var template = CompilerContext.compile(
-      '{{#hello}}{{world ../zomg}}{{/hello}}',
-      { data: true }
-    );
-
-    var helpers = {
-      hello: function(options) {
+    expectTemplate('{{#hello}}{{world ../zomg}}{{/hello}}')
+      .withCompileOptions({ data: true })
+      .withHelper('hello', function(options) {
         return options.fn({ exclaim: '?' }, { data: { adjective: 'sad' } });
-      },
-      world: function(thing, options) {
+      })
+      .withHelper('world', function(thing, options) {
         return options.data.adjective + ' ' + thing + (this.exclaim || '');
-      }
-    };
-
-    var result = template(
-      { exclaim: true, zomg: 'world' },
-      { helpers: helpers, data: { adjective: 'happy' } }
-    );
-    equals('sad world?', result, 'Overriden data output by helper');
+      })
+      .withInput({ exclaim: true, zomg: 'world' })
+      .withRuntimeOptions({ data: { adjective: 'happy' } })
+      .withMessage('Overriden data output by helper')
+      .toCompileTo('sad world?');
   });
 
   describe('@root', function() {
     it('the root context can be looked up via @root', function() {
-      var template = CompilerContext.compile('{{@root.foo}}');
-      var result = template({ foo: 'hello' }, { data: {} });
-      equals('hello', result);
-
-      result = template({ foo: 'hello' }, {});
-      equals('hello', result);
+      expectTemplate('{{@root.foo}}')
+        .withInput({ foo: 'hello' })
+        .withRuntimeOptions({ data: {} })
+        .toCompileTo('hello');
+
+      expectTemplate('{{@root.foo}}')
+        .withInput({ foo: 'hello' })
+        .toCompileTo('hello');
     });
+
     it('passed root values take priority', function() {
-      var template = CompilerContext.compile('{{@root.foo}}');
-      var result = template({}, { data: { root: { foo: 'hello' } } });
-      equals('hello', result);
+      expectTemplate('{{@root.foo}}')
+        .withInput({ foo: 'should not be used' })
+        .withRuntimeOptions({ data: { root: { foo: 'hello' } } })
+        .toCompileTo('hello');
     });
   });
 
   describe('nesting', function() {
     it('the root context can be looked up via @root', function() {
-      var template = CompilerContext.compile(
+      expectTemplate(
         '{{#helper}}{{#helper}}{{@./depth}} {{@../depth}} {{@../../depth}}{{/helper}}{{/helper}}'
-      );
-      var result = template(
-        { foo: 'hello' },
-        {
-          helpers: {
-            helper: function(options) {
-              var frame = Handlebars.createFrame(options.data);
-              frame.depth = options.data.depth + 1;
-              return options.fn(this, { data: frame });
-            }
-          },
+      )
+        .withInput({ foo: 'hello' })
+        .withHelper('helper', function(options) {
+          var frame = Handlebars.createFrame(options.data);
+          frame.depth = options.data.depth + 1;
+          return options.fn(this, { data: frame });
+        })
+        .withRuntimeOptions({
           data: {
             depth: 0
           }
-        }
-      );
-      equals('2 1 0', result);
+        })
+        .toCompileTo('2 1 0');
     });
   });
 });
diff --git a/spec/env/common.js b/spec/env/common.js
index 0ecebcf45..a122f4d6e 100644
--- a/spec/env/common.js
+++ b/spec/env/common.js
@@ -129,6 +129,7 @@ function HandlebarsTestBench(templateAsString) {
   this.templateAsString = templateAsString;
   this.helpers = {};
   this.partials = {};
+  this.decorators = {};
   this.input = {};
   this.message =
     'Template' + templateAsString + ' does not evaluate to expected output';
@@ -146,11 +147,43 @@ HandlebarsTestBench.prototype.withHelper = function(name, helperFunction) {
   return this;
 };
 
+HandlebarsTestBench.prototype.withHelpers = function(helperFunctions) {
+  var self = this;
+  Object.keys(helperFunctions).forEach(function(name) {
+    self.withHelper(name, helperFunctions[name]);
+  });
+  return this;
+};
+
 HandlebarsTestBench.prototype.withPartial = function(name, partialAsString) {
   this.partials[name] = partialAsString;
   return this;
 };
 
+HandlebarsTestBench.prototype.withPartials = function(partials) {
+  var self = this;
+  Object.keys(partials).forEach(function(name) {
+    self.withPartial(name, partials[name]);
+  });
+  return this;
+};
+
+HandlebarsTestBench.prototype.withDecorator = function(
+  name,
+  decoratorFunction
+) {
+  this.decorators[name] = decoratorFunction;
+  return this;
+};
+
+HandlebarsTestBench.prototype.withDecorators = function(decorators) {
+  var self = this;
+  Object.keys(decorators).forEach(function(name) {
+    self.withDecorator(name, decorators[name]);
+  });
+  return this;
+};
+
 HandlebarsTestBench.prototype.withCompileOptions = function(compileOptions) {
   this.compileOptions = compileOptions;
   return this;
@@ -167,19 +200,18 @@ HandlebarsTestBench.prototype.withMessage = function(message) {
 };
 
 HandlebarsTestBench.prototype.toCompileTo = function(expectedOutputAsString) {
-  expect(this._compileAndExecute()).to.equal(expectedOutputAsString);
+  expect(this._compileAndExecute()).to.equal(
+    expectedOutputAsString,
+    this.message
+  );
 };
 
 // see chai "to.throw" (https://www.chaijs.com/api/bdd/#method_throw)
-HandlebarsTestBench.prototype.toThrow = function(
-  errorLike,
-  errMsgMatcher,
-  msg
-) {
+HandlebarsTestBench.prototype.toThrow = function(errorLike, errMsgMatcher) {
   var self = this;
   expect(function() {
     self._compileAndExecute();
-  }).to.throw(errorLike, errMsgMatcher, msg);
+  }).to.throw(errorLike, errMsgMatcher, this.message);
 };
 
 HandlebarsTestBench.prototype._compileAndExecute = function() {
@@ -202,5 +234,6 @@ HandlebarsTestBench.prototype._combineRuntimeOptions = function() {
   });
   combinedRuntimeOptions.helpers = this.helpers;
   combinedRuntimeOptions.partials = this.partials;
+  combinedRuntimeOptions.decorators = this.decorators;
   return combinedRuntimeOptions;
 };
diff --git a/spec/helpers.js b/spec/helpers.js
index 60140a096..5166d58d6 100644
--- a/spec/helpers.js
+++ b/spec/helpers.js
@@ -1,64 +1,45 @@
 describe('helpers', function() {
   it('helper with complex lookup$', function() {
-    var string = '{{#goodbyes}}{{{link ../prefix}}}{{/goodbyes}}';
-    var hash = {
-      prefix: '/root',
-      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
-    };
-    var helpers = {
-      link: function(prefix) {
+    expectTemplate('{{#goodbyes}}{{{link ../prefix}}}{{/goodbyes}}')
+      .withInput({
+        prefix: '/root',
+        goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+      })
+      .withHelper('link', function(prefix) {
         return (
           '<a href="' + prefix + '/' + this.url + '">' + this.text + '</a>'
         );
-      }
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      '<a href="/root/goodbye">Goodbye</a>'
-    );
+      })
+      .toCompileTo('<a href="/root/goodbye">Goodbye</a>');
   });
 
   it('helper for raw block gets raw content', function() {
-    var string = '{{{{raw}}}} {{test}} {{{{/raw}}}}';
-    var hash = { test: 'hello' };
-    var helpers = {
-      raw: function(options) {
+    expectTemplate('{{{{raw}}}} {{test}} {{{{/raw}}}}')
+      .withInput({ test: 'hello' })
+      .withHelper('raw', function(options) {
         return options.fn();
-      }
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      ' {{test}} ',
-      'raw block helper gets raw content'
-    );
+      })
+      .withMessage('raw block helper gets raw content')
+      .toCompileTo(' {{test}} ');
   });
 
   it('helper for raw block gets parameters', function() {
-    var string = '{{{{raw 1 2 3}}}} {{test}} {{{{/raw}}}}';
-    var hash = { test: 'hello' };
-    var helpers = {
-      raw: function(a, b, c, options) {
+    expectTemplate('{{{{raw 1 2 3}}}} {{test}} {{{{/raw}}}}')
+      .withInput({ test: 'hello' })
+      .withHelper('raw', function(a, b, c, options) {
         return options.fn() + a + b + c;
-      }
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      ' {{test}} 123',
-      'raw block helper gets raw content'
-    );
+      })
+      .withMessage('raw block helper gets raw content')
+      .toCompileTo(' {{test}} 123');
   });
 
   describe('raw block parsing (with identity helper-function)', function() {
     function runWithIdentityHelper(template, expected) {
-      var helpers = {
-        identity: function(options) {
+      expectTemplate(template)
+        .withHelper('identity', function(options) {
           return options.fn();
-        }
-      };
-      shouldCompileTo(template, [{}, helpers], expected);
+        })
+        .toCompileTo(expected);
     }
 
     it('helper for nested raw block gets raw content', function() {
@@ -92,60 +73,47 @@ describe('helpers', function() {
 
     it('helper for nested raw block throw exception when with missing closing braces', function() {
       var string = '{{{{a}}}} {{{{/a';
-      shouldThrow(function() {
-        Handlebars.compile(string)();
-      });
+      expectTemplate(string).toThrow();
     });
   });
 
   it('helper block with identical context', function() {
-    var string = '{{#goodbyes}}{{name}}{{/goodbyes}}';
-    var hash = { name: 'Alan' };
-    var helpers = {
-      goodbyes: function(options) {
+    expectTemplate('{{#goodbyes}}{{name}}{{/goodbyes}}')
+      .withInput({ name: 'Alan' })
+      .withHelper('goodbyes', function(options) {
         var out = '';
         var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
         for (var i = 0, j = byes.length; i < j; i++) {
           out += byes[i] + ' ' + options.fn(this) + '! ';
         }
         return out;
-      }
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      'Goodbye Alan! goodbye Alan! GOODBYE Alan! '
-    );
+      })
+      .toCompileTo('Goodbye Alan! goodbye Alan! GOODBYE Alan! ');
   });
+
   it('helper block with complex lookup expression', function() {
-    var string = '{{#goodbyes}}{{../name}}{{/goodbyes}}';
-    var hash = { name: 'Alan' };
-    var helpers = {
-      goodbyes: function(options) {
+    expectTemplate('{{#goodbyes}}{{../name}}{{/goodbyes}}')
+      .withInput({ name: 'Alan' })
+      .withHelper('goodbyes', function(options) {
         var out = '';
         var byes = ['Goodbye', 'goodbye', 'GOODBYE'];
         for (var i = 0, j = byes.length; i < j; i++) {
           out += byes[i] + ' ' + options.fn({}) + '! ';
         }
         return out;
-      }
-    };
-    shouldCompileTo(
-      string,
-      [hash, helpers],
-      'Goodbye Alan! goodbye Alan! GOODBYE Alan! '
-    );
+      })
+      .toCompileTo('Goodbye Alan! goodbye Alan! GOODBYE Alan! ');
   });
 
   it('helper with complex lookup and nested template', function() {
-    var string =
-      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
-    var hash = {
-      prefix: '/root',
-      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
-    };
-    var helpers = {
-      link: function(prefix, options) {
+    expectTemplate(
+      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}'
+    )
+      .withInput({
+        prefix: '/root',
+        goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+      })
+      .withHelper('link', function(prefix, options) {
         return (
           '<a href="' +
           prefix +
@@ -155,25 +123,19 @@ describe('helpers', function() {
           options.fn(this) +
           '</a>'
         );
-      }
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, helpers],
-      false,
-      '<a href="/root/goodbye">Goodbye</a>'
-    );
+      })
+      .toCompileTo('<a href="/root/goodbye">Goodbye</a>');
   });
 
   it('helper with complex lookup and nested template in VM+Compiler', function() {
-    var string =
-      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}';
-    var hash = {
-      prefix: '/root',
-      goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
-    };
-    var helpers = {
-      link: function(prefix, options) {
+    expectTemplate(
+      '{{#goodbyes}}{{#link ../prefix}}{{text}}{{/link}}{{/goodbyes}}'
+    )
+      .withInput({
+        prefix: '/root',
+        goodbyes: [{ text: 'Goodbye', url: 'goodbye' }]
+      })
+      .withHelper('link', function(prefix, options) {
         return (
           '<a href="' +
           prefix +
@@ -183,149 +145,103 @@ describe('helpers', function() {
           options.fn(this) +
           '</a>'
         );
-      }
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, helpers],
-      true,
-      '<a href="/root/goodbye">Goodbye</a>'
-    );
+      })
+      .toCompileTo('<a href="/root/goodbye">Goodbye</a>');
   });
+
   it('helper returning undefined value', function() {
-    shouldCompileTo(' {{nothere}}', [{}, { nothere: function() {} }], ' ');
-    shouldCompileTo(
-      ' {{#nothere}}{{/nothere}}',
-      [{}, { nothere: function() {} }],
-      ' '
-    );
+    expectTemplate(' {{nothere}}')
+      .withHelpers({
+        nothere: function() {}
+      })
+      .toCompileTo(' ');
+
+    expectTemplate(' {{#nothere}}{{/nothere}}')
+      .withHelpers({
+        nothere: function() {}
+      })
+      .toCompileTo(' ');
   });
 
   it('block helper', function() {
-    var string = '{{#goodbyes}}{{text}}! {{/goodbyes}}cruel {{world}}!';
-    var template = CompilerContext.compile(string);
-
-    var result = template(
-      { world: 'world' },
-      {
-        helpers: {
-          goodbyes: function(options) {
-            return options.fn({ text: 'GOODBYE' });
-          }
-        }
-      }
-    );
-    equal(result, 'GOODBYE! cruel world!', 'Block helper executed');
+    expectTemplate('{{#goodbyes}}{{text}}! {{/goodbyes}}cruel {{world}}!')
+      .withInput({ world: 'world' })
+      .withHelper('goodbyes', function(options) {
+        return options.fn({ text: 'GOODBYE' });
+      })
+      .withMessage('Block helper executed')
+      .toCompileTo('GOODBYE! cruel world!');
   });
 
   it('block helper staying in the same context', function() {
-    var string = '{{#form}}<p>{{name}}</p>{{/form}}';
-    var template = CompilerContext.compile(string);
-
-    var result = template(
-      { name: 'Yehuda' },
-      {
-        helpers: {
-          form: function(options) {
-            return '<form>' + options.fn(this) + '</form>';
-          }
-        }
-      }
-    );
-    equal(
-      result,
-      '<form><p>Yehuda</p></form>',
-      'Block helper executed with current context'
-    );
+    expectTemplate('{{#form}}<p>{{name}}</p>{{/form}}')
+      .withInput({ name: 'Yehuda' })
+      .withHelper('form', function(options) {
+        return '<form>' + options.fn(this) + '</form>';
+      })
+      .withMessage('Block helper executed with current context')
+      .toCompileTo('<form><p>Yehuda</p></form>');
   });
 
   it('block helper should have context in this', function() {
-    var source =
-      '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>';
     function link(options) {
       return '<a href="/people/' + this.id + '">' + options.fn(this) + '</a>';
     }
-    var data = {
-      people: [
-        { name: 'Alan', id: 1 },
-        { name: 'Yehuda', id: 2 }
-      ]
-    };
 
-    shouldCompileTo(
-      source,
-      [data, { link: link }],
-      '<ul><li><a href="/people/1">Alan</a></li><li><a href="/people/2">Yehuda</a></li></ul>'
-    );
+    expectTemplate(
+      '<ul>{{#people}}<li>{{#link}}{{name}}{{/link}}</li>{{/people}}</ul>'
+    )
+      .withInput({
+        people: [
+          { name: 'Alan', id: 1 },
+          { name: 'Yehuda', id: 2 }
+        ]
+      })
+      .withHelper('link', link)
+      .toCompileTo(
+        '<ul><li><a href="/people/1">Alan</a></li><li><a href="/people/2">Yehuda</a></li></ul>'
+      );
   });
 
   it('block helper for undefined value', function() {
-    shouldCompileTo("{{#empty}}shouldn't render{{/empty}}", {}, '');
+    expectTemplate("{{#empty}}shouldn't render{{/empty}}").toCompileTo('');
   });
 
   it('block helper passing a new context', function() {
-    var string = '{{#form yehuda}}<p>{{name}}</p>{{/form}}';
-    var template = CompilerContext.compile(string);
-
-    var result = template(
-      { yehuda: { name: 'Yehuda' } },
-      {
-        helpers: {
-          form: function(context, options) {
-            return '<form>' + options.fn(context) + '</form>';
-          }
-        }
-      }
-    );
-    equal(result, '<form><p>Yehuda</p></form>', 'Context variable resolved');
+    expectTemplate('{{#form yehuda}}<p>{{name}}</p>{{/form}}')
+      .withInput({ yehuda: { name: 'Yehuda' } })
+      .withHelper('form', function(context, options) {
+        return '<form>' + options.fn(context) + '</form>';
+      })
+      .withMessage('Context variable resolved')
+      .toCompileTo('<form><p>Yehuda</p></form>');
   });
 
   it('block helper passing a complex path context', function() {
-    var string = '{{#form yehuda/cat}}<p>{{name}}</p>{{/form}}';
-    var template = CompilerContext.compile(string);
-
-    var result = template(
-      { yehuda: { name: 'Yehuda', cat: { name: 'Harold' } } },
-      {
-        helpers: {
-          form: function(context, options) {
-            return '<form>' + options.fn(context) + '</form>';
-          }
-        }
-      }
-    );
-    equal(
-      result,
-      '<form><p>Harold</p></form>',
-      'Complex path variable resolved'
-    );
+    expectTemplate('{{#form yehuda/cat}}<p>{{name}}</p>{{/form}}')
+      .withInput({ yehuda: { name: 'Yehuda', cat: { name: 'Harold' } } })
+      .withHelper('form', function(context, options) {
+        return '<form>' + options.fn(context) + '</form>';
+      })
+      .withMessage('Complex path variable resolved')
+      .toCompileTo('<form><p>Harold</p></form>');
   });
 
   it('nested block helpers', function() {
-    var string =
-      '{{#form yehuda}}<p>{{name}}</p>{{#link}}Hello{{/link}}{{/form}}';
-    var template = CompilerContext.compile(string);
-
-    var result = template(
-      {
+    expectTemplate(
+      '{{#form yehuda}}<p>{{name}}</p>{{#link}}Hello{{/link}}{{/form}}'
+    )
+      .withInput({
         yehuda: { name: 'Yehuda' }
-      },
-      {
-        helpers: {
-          link: function(options) {
-            return '<a href="' + this.name + '">' + options.fn(this) + '</a>';
-          },
-          form: function(context, options) {
-            return '<form>' + options.fn(context) + '</form>';
-          }
-        }
-      }
-    );
-    equal(
-      result,
-      '<form><p>Yehuda</p><a href="Yehuda">Hello</a></form>',
-      'Both blocks executed'
-    );
+      })
+      .withHelper('link', function(options) {
+        return '<a href="' + this.name + '">' + options.fn(this) + '</a>';
+      })
+      .withHelper('form', function(context, options) {
+        return '<form>' + options.fn(context) + '</form>';
+      })
+      .withMessage('Both blocks executed')
+      .toCompileTo('<form><p>Yehuda</p><a href="Yehuda">Hello</a></form>');
   });
 
   it('block helper inverted sections', function() {
@@ -345,35 +261,28 @@ describe('helpers', function() {
       }
     }
 
-    var hash = { people: [{ name: 'Alan' }, { name: 'Yehuda' }] };
-    var empty = { people: [] };
-    var rootMessage = {
-      people: [],
-      message: "Nobody's here"
-    };
-
-    var messageString = '{{#list people}}Hello{{^}}{{message}}{{/list}}';
-
     // the meaning here may be kind of hard to catch, but list.not is always called,
     // so we should see the output of both
-    shouldCompileTo(
-      string,
-      [hash, { list: list }],
-      '<ul><li>Alan</li><li>Yehuda</li></ul>',
-      'an inverse wrapper is passed in as a new context'
-    );
-    shouldCompileTo(
-      string,
-      [empty, { list: list }],
-      "<p><em>Nobody's here</em></p>",
-      'an inverse wrapper can be optionally called'
-    );
-    shouldCompileTo(
-      messageString,
-      [rootMessage, { list: list }],
-      '<p>Nobody&#x27;s here</p>',
-      'the context of an inverse is the parent of the block'
-    );
+    expectTemplate(string)
+      .withInput({ people: [{ name: 'Alan' }, { name: 'Yehuda' }] })
+      .withHelpers({ list: list })
+      .withMessage('an inverse wrapper is passed in as a new context')
+      .toCompileTo('<ul><li>Alan</li><li>Yehuda</li></ul>');
+
+    expectTemplate(string)
+      .withInput({ people: [] })
+      .withHelpers({ list: list })
+      .withMessage('an inverse wrapper can be optionally called')
+      .toCompileTo("<p><em>Nobody's here</em></p>");
+
+    expectTemplate('{{#list people}}Hello{{^}}{{message}}{{/list}}')
+      .withInput({
+        people: [],
+        message: "Nobody's here"
+      })
+      .withHelpers({ list: list })
+      .withMessage('the context of an inverse is the parent of the block')
+      .toCompileTo('<p>Nobody&#x27;s here</p>');
   });
 
   it('pathed lambas with parameters', function() {
@@ -388,84 +297,73 @@ describe('helpers', function() {
         return 'fail';
       }
     };
-    shouldCompileTo('{{./helper 1}}', [hash, helpers], 'winning');
-    shouldCompileTo('{{hash/helper 1}}', [hash, helpers], 'winning');
+
+    expectTemplate('{{./helper 1}}')
+      .withInput(hash)
+      .withHelpers(helpers)
+      .toCompileTo('winning');
+
+    expectTemplate('{{hash/helper 1}}')
+      .withInput(hash)
+      .withHelpers(helpers)
+      .toCompileTo('winning');
   });
 
   describe('helpers hash', function() {
     it('providing a helpers hash', function() {
-      shouldCompileTo(
-        'Goodbye {{cruel}} {{world}}!',
-        [
-          { cruel: 'cruel' },
-          {
-            world: function() {
-              return 'world';
-            }
+      expectTemplate('Goodbye {{cruel}} {{world}}!')
+        .withInput({ cruel: 'cruel' })
+        .withHelpers({
+          world: function() {
+            return 'world';
           }
-        ],
-        'Goodbye cruel world!',
-        'helpers hash is available'
-      );
-
-      shouldCompileTo(
-        'Goodbye {{#iter}}{{cruel}} {{world}}{{/iter}}!',
-        [
-          { iter: [{ cruel: 'cruel' }] },
-          {
-            world: function() {
-              return 'world';
-            }
+        })
+        .withMessage('helpers hash is available')
+        .toCompileTo('Goodbye cruel world!');
+
+      expectTemplate('Goodbye {{#iter}}{{cruel}} {{world}}{{/iter}}!')
+        .withInput({ iter: [{ cruel: 'cruel' }] })
+        .withHelpers({
+          world: function() {
+            return 'world';
           }
-        ],
-        'Goodbye cruel world!',
-        'helpers hash is available inside other blocks'
-      );
+        })
+        .withMessage('helpers hash is available inside other blocks')
+        .toCompileTo('Goodbye cruel world!');
     });
 
     it('in cases of conflict, helpers win', function() {
-      shouldCompileTo(
-        '{{{lookup}}}',
-        [
-          { lookup: 'Explicit' },
-          {
-            lookup: function() {
-              return 'helpers';
-            }
+      expectTemplate('{{{lookup}}}')
+        .withInput({ lookup: 'Explicit' })
+        .withHelpers({
+          lookup: function() {
+            return 'helpers';
           }
-        ],
-        'helpers',
-        'helpers hash has precedence escaped expansion'
-      );
-      shouldCompileTo(
-        '{{lookup}}',
-        [
-          { lookup: 'Explicit' },
-          {
-            lookup: function() {
-              return 'helpers';
-            }
+        })
+        .withMessage('helpers hash has precedence escaped expansion')
+        .toCompileTo('helpers');
+
+      expectTemplate('{{lookup}}')
+        .withInput({ lookup: 'Explicit' })
+        .withHelpers({
+          lookup: function() {
+            return 'helpers';
           }
-        ],
-        'helpers',
-        'helpers hash has precedence simple expansion'
-      );
+        })
+        .withMessage('helpers hash has precedence simple expansion')
+        .toCompileTo('helpers');
     });
 
     it('the helpers hash is available is nested contexts', function() {
-      shouldCompileTo(
-        '{{#outer}}{{#inner}}{{helper}}{{/inner}}{{/outer}}',
-        [
-          { outer: { inner: { unused: [] } } },
-          {
-            helper: function() {
-              return 'helper';
-            }
+      expectTemplate('{{#outer}}{{#inner}}{{helper}}{{/inner}}{{/outer}}')
+        .withInput({ outer: { inner: { unused: [] } } })
+        .withHelpers({
+          helper: function() {
+            return 'helper';
           }
-        ],
-        'helper',
-        'helpers hash is available in nested contexts.'
-      );
+        })
+        .withMessage('helpers hash is available in nested contexts.')
+        .toCompileTo('helper');
     });
 
     it('the helper hash should augment the global hash', function() {
@@ -473,18 +371,16 @@ describe('helpers', function() {
         return 'found it!';
       });
 
-      shouldCompileTo(
-        '{{test_helper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}',
-        [
-          { cruel: 'cruel' },
-          {
-            world: function() {
-              return 'world!';
-            }
+      expectTemplate(
+        '{{test_helper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}'
+      )
+        .withInput({ cruel: 'cruel' })
+        .withHelpers({
+          world: function() {
+            return 'world!';
           }
-        ],
-        'found it! Goodbye cruel world!!'
-      );
+        })
+        .toCompileTo('found it! Goodbye cruel world!!');
     });
   });
 
@@ -513,12 +409,13 @@ describe('helpers', function() {
         }
       });
 
-      shouldCompileTo(
-        '{{testHelper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}',
-        [{ cruel: 'cruel' }],
-        'found it! Goodbye cruel world!!'
-      );
+      expectTemplate(
+        '{{testHelper}} {{#if cruel}}Goodbye {{cruel}} {{world}}!{{/if}}'
+      )
+        .withInput({ cruel: 'cruel' })
+        .toCompileTo('found it! Goodbye cruel world!!');
     });
+
     it('fails with multiple and args', function() {
       shouldThrow(
         function() {
@@ -541,9 +438,8 @@ describe('helpers', function() {
   });
 
   it('decimal number literals work', function() {
-    var string = 'Message: {{hello -1.2 1.2}}';
-    var helpers = {
-      hello: function(times, times2) {
+    expectTemplate('Message: {{hello -1.2 1.2}}')
+      .withHelper('hello', function(times, times2) {
         if (typeof times !== 'number') {
           times = 'NaN';
         }
@@ -551,39 +447,27 @@ describe('helpers', function() {
           times2 = 'NaN';
         }
         return 'Hello ' + times + ' ' + times2 + ' times';
-      }
-    };
-    shouldCompileTo(
-      string,
-      [{}, helpers],
-      'Message: Hello -1.2 1.2 times',
-      'template with a negative integer literal'
-    );
+      })
+      .withMessage('template with a negative integer literal')
+      .toCompileTo('Message: Hello -1.2 1.2 times');
   });
 
   it('negative number literals work', function() {
-    var string = 'Message: {{hello -12}}';
-    var helpers = {
-      hello: function(times) {
+    expectTemplate('Message: {{hello -12}}')
+      .withHelper('hello', function(times) {
         if (typeof times !== 'number') {
           times = 'NaN';
         }
         return 'Hello ' + times + ' times';
-      }
-    };
-    shouldCompileTo(
-      string,
-      [{}, helpers],
-      'Message: Hello -12 times',
-      'template with a negative integer literal'
-    );
+      })
+      .withMessage('template with a negative integer literal')
+      .toCompileTo('Message: Hello -12 times');
   });
 
   describe('String literal parameters', function() {
     it('simple literals work', function() {
-      var string = 'Message: {{hello "world" 12 true false}}';
-      var helpers = {
-        hello: function(param, times, bool1, bool2) {
+      expectTemplate('Message: {{hello "world" 12 true false}}')
+        .withHelper('hello', function(param, times, bool1, bool2) {
           if (typeof times !== 'number') {
             times = 'NaN';
           }
@@ -596,115 +480,74 @@ describe('helpers', function() {
           return (
             'Hello ' + param + ' ' + times + ' times: ' + bool1 + ' ' + bool2
           );
-        }
-      };
-      shouldCompileTo(
-        string,
-        [{}, helpers],
-        'Message: Hello world 12 times: true false',
-        'template with a simple String literal'
-      );
+        })
+        .withMessage('template with a simple String literal')
+        .toCompileTo('Message: Hello world 12 times: true false');
     });
 
     it('using a quote in the middle of a parameter raises an error', function() {
-      var string = 'Message: {{hello wo"rld"}}';
-      shouldThrow(function() {
-        CompilerContext.compile(string);
-      }, Error);
+      expectTemplate('Message: {{hello wo"rld"}}').toThrow(Error);
     });
 
     it('escaping a String is possible', function() {
-      var string = 'Message: {{{hello "\\"world\\""}}}';
-      var helpers = {
-        hello: function(param) {
+      expectTemplate('Message: {{{hello "\\"world\\""}}}')
+        .withHelper('hello', function(param) {
           return 'Hello ' + param;
-        }
-      };
-      shouldCompileTo(
-        string,
-        [{}, helpers],
-        'Message: Hello "world"',
-        'template with an escaped String literal'
-      );
+        })
+        .withMessage('template with an escaped String literal')
+        .toCompileTo('Message: Hello "world"');
     });
 
     it("it works with ' marks", function() {
-      var string = 'Message: {{{hello "Alan\'s world"}}}';
-      var helpers = {
-        hello: function(param) {
+      expectTemplate('Message: {{{hello "Alan\'s world"}}}')
+        .withHelper('hello', function(param) {
           return 'Hello ' + param;
-        }
-      };
-      shouldCompileTo(
-        string,
-        [{}, helpers],
-        "Message: Hello Alan's world",
-        "template with a ' mark"
-      );
+        })
+        .withMessage("template with a ' mark")
+        .toCompileTo("Message: Hello Alan's world");
     });
   });
 
   it('negative number literals work', function() {
-    var string = 'Message: {{hello -12}}';
-    var helpers = {
-      hello: function(times) {
+    expectTemplate('Message: {{hello -12}}')
+      .withHelper('hello', function(times) {
         if (typeof times !== 'number') {
           times = 'NaN';
         }
         return 'Hello ' + times + ' times';
-      }
-    };
-    shouldCompileTo(
-      string,
-      [{}, helpers],
-      'Message: Hello -12 times',
-      'template with a negative integer literal'
-    );
+      })
+      .withMessage('template with a negative integer literal')
+      .toCompileTo('Message: Hello -12 times');
   });
 
   describe('multiple parameters', function() {
     it('simple multi-params work', function() {
-      var string = 'Message: {{goodbye cruel world}}';
-      var hash = { cruel: 'cruel', world: 'world' };
-      var helpers = {
-        goodbye: function(cruel, world) {
+      expectTemplate('Message: {{goodbye cruel world}}')
+        .withInput({ cruel: 'cruel', world: 'world' })
+        .withHelper('goodbye', function(cruel, world) {
           return 'Goodbye ' + cruel + ' ' + world;
-        }
-      };
-      shouldCompileTo(
-        string,
-        [hash, helpers],
-        'Message: Goodbye cruel world',
-        'regular helpers with multiple params'
-      );
+        })
+        .withMessage('regular helpers with multiple params')
+        .toCompileTo('Message: Goodbye cruel world');
     });
 
     it('block multi-params work', function() {
-      var string =
-        'Message: {{#goodbye cruel world}}{{greeting}} {{adj}} {{noun}}{{/goodbye}}';
-      var hash = { cruel: 'cruel', world: 'world' };
-      var helpers = {
-        goodbye: function(cruel, world, options) {
+      expectTemplate(
+        'Message: {{#goodbye cruel world}}{{greeting}} {{adj}} {{noun}}{{/goodbye}}'
+      )
+        .withInput({ cruel: 'cruel', world: 'world' })
+        .withHelper('goodbye', function(cruel, world, options) {
           return options.fn({ greeting: 'Goodbye', adj: cruel, noun: world });
-        }
-      };
-      shouldCompileTo(
-        string,
-        [hash, helpers],
-        'Message: Goodbye cruel world',
-        'block helpers with multiple params'
-      );
+        })
+        .withMessage('block helpers with multiple params')
+        .toCompileTo('Message: Goodbye cruel world');
     });
   });
 
   describe('hash', function() {
     it('helpers can take an optional hash', function() {
-      var template = CompilerContext.compile(
-        '{{goodbye cruel="CRUEL" world="WORLD" times=12}}'
-      );
-
-      var helpers = {
-        goodbye: function(options) {
+      expectTemplate('{{goodbye cruel="CRUEL" world="WORLD" times=12}}')
+        .withHelper('goodbye', function(options) {
           return (
             'GOODBYE ' +
             options.hash.cruel +
@@ -714,50 +557,36 @@ describe('helpers', function() {
             options.hash.times +
             ' TIMES'
           );
-        }
-      };
-
-      var context = {};
-
-      var result = template(context, { helpers: helpers });
-      equals(result, 'GOODBYE CRUEL WORLD 12 TIMES', 'Helper output hash');
+        })
+        .withMessage('Helper output hash')
+        .toCompileTo('GOODBYE CRUEL WORLD 12 TIMES');
     });
 
     it('helpers can take an optional hash with booleans', function() {
-      var helpers = {
-        goodbye: function(options) {
-          if (options.hash.print === true) {
-            return 'GOODBYE ' + options.hash.cruel + ' ' + options.hash.world;
-          } else if (options.hash.print === false) {
-            return 'NOT PRINTING';
-          } else {
-            return 'THIS SHOULD NOT HAPPEN';
-          }
+      function goodbye(options) {
+        if (options.hash.print === true) {
+          return 'GOODBYE ' + options.hash.cruel + ' ' + options.hash.world;
+        } else if (options.hash.print === false) {
+          return 'NOT PRINTING';
+        } else {
+          return 'THIS SHOULD NOT HAPPEN';
         }
-      };
-
-      var context = {};
+      }
 
-      var template = CompilerContext.compile(
-        '{{goodbye cruel="CRUEL" world="WORLD" print=true}}'
-      );
-      var result = template(context, { helpers: helpers });
-      equals(result, 'GOODBYE CRUEL WORLD', 'Helper output hash');
+      expectTemplate('{{goodbye cruel="CRUEL" world="WORLD" print=true}}')
+        .withHelper('goodbye', goodbye)
+        .withMessage('Helper output hash')
+        .toCompileTo('GOODBYE CRUEL WORLD');
 
-      template = CompilerContext.compile(
-        '{{goodbye cruel="CRUEL" world="WORLD" print=false}}'
-      );
-      result = template(context, { helpers: helpers });
-      equals(result, 'NOT PRINTING', 'Boolean helper parameter honored');
+      expectTemplate('{{goodbye cruel="CRUEL" world="WORLD" print=false}}')
+        .withHelper('goodbye', goodbye)
+        .withMessage('Boolean helper parameter honored')
+        .toCompileTo('NOT PRINTING');
     });
 
     it('block helpers can take an optional hash', function() {
-      var template = CompilerContext.compile(
-        '{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}'
-      );
-
-      var helpers = {
-        goodbye: function(options) {
+      expectTemplate('{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}')
+        .withHelper('goodbye', function(options) {
           return (
             'GOODBYE ' +
             options.hash.cruel +
@@ -767,20 +596,14 @@ describe('helpers', function() {
             options.hash.times +
             ' TIMES'
           );
-        }
-      };
-
-      var result = template({}, { helpers: helpers });
-      equals(result, 'GOODBYE CRUEL world 12 TIMES', 'Hash parameters output');
+        })
+        .withMessage('Hash parameters output')
+        .toCompileTo('GOODBYE CRUEL world 12 TIMES');
     });
 
     it('block helpers can take an optional hash with single quoted stings', function() {
-      var template = CompilerContext.compile(
-        '{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}'
-      );
-
-      var helpers = {
-        goodbye: function(options) {
+      expectTemplate('{{#goodbye cruel="CRUEL" times=12}}world{{/goodbye}}')
+        .withHelper('goodbye', function(options) {
           return (
             'GOODBYE ' +
             options.hash.cruel +
@@ -790,200 +613,173 @@ describe('helpers', function() {
             options.hash.times +
             ' TIMES'
           );
-        }
-      };
-
-      var result = template({}, { helpers: helpers });
-      equals(result, 'GOODBYE CRUEL world 12 TIMES', 'Hash parameters output');
+        })
+        .withMessage('Hash parameters output')
+        .toCompileTo('GOODBYE CRUEL world 12 TIMES');
     });
 
     it('block helpers can take an optional hash with booleans', function() {
-      var helpers = {
-        goodbye: function(options) {
-          if (options.hash.print === true) {
-            return 'GOODBYE ' + options.hash.cruel + ' ' + options.fn(this);
-          } else if (options.hash.print === false) {
-            return 'NOT PRINTING';
-          } else {
-            return 'THIS SHOULD NOT HAPPEN';
-          }
+      function goodbye(options) {
+        if (options.hash.print === true) {
+          return 'GOODBYE ' + options.hash.cruel + ' ' + options.fn(this);
+        } else if (options.hash.print === false) {
+          return 'NOT PRINTING';
+        } else {
+          return 'THIS SHOULD NOT HAPPEN';
         }
-      };
+      }
 
-      var template = CompilerContext.compile(
-        '{{#goodbye cruel="CRUEL" print=true}}world{{/goodbye}}'
-      );
-      var result = template({}, { helpers: helpers });
-      equals(result, 'GOODBYE CRUEL world', 'Boolean hash parameter honored');
+      expectTemplate('{{#goodbye cruel="CRUEL" print=true}}world{{/goodbye}}')
+        .withHelper('goodbye', goodbye)
+        .withMessage('Boolean hash parameter honored')
+        .toCompileTo('GOODBYE CRUEL world');
 
-      template = CompilerContext.compile(
-        '{{#goodbye cruel="CRUEL" print=false}}world{{/goodbye}}'
-      );
-      result = template({}, { helpers: helpers });
-      equals(result, 'NOT PRINTING', 'Boolean hash parameter honored');
+      expectTemplate('{{#goodbye cruel="CRUEL" print=false}}world{{/goodbye}}')
+        .withHelper('goodbye', goodbye)
+        .withMessage('Boolean hash parameter honored')
+        .toCompileTo('NOT PRINTING');
     });
   });
 
   describe('helperMissing', function() {
     it('if a context is not found, helperMissing is used', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{hello}} {{link_to world}}');
-          template({});
-        },
-        undefined,
+      expectTemplate('{{hello}} {{link_to world}}').toThrow(
         /Missing helper: "link_to"/
       );
     });
 
     it('if a context is not found, custom helperMissing is used', function() {
-      var string = '{{hello}} {{link_to world}}';
-      var context = { hello: 'Hello', world: 'world' };
-
-      var helpers = {
-        helperMissing: function(mesg, options) {
+      expectTemplate('{{hello}} {{link_to world}}')
+        .withInput({ hello: 'Hello', world: 'world' })
+        .withHelper('helperMissing', function(mesg, options) {
           if (options.name === 'link_to') {
             return new Handlebars.SafeString('<a>' + mesg + '</a>');
           }
-        }
-      };
-
-      shouldCompileTo(string, [context, helpers], 'Hello <a>world</a>');
+        })
+        .toCompileTo('Hello <a>world</a>');
     });
 
     it('if a value is not found, custom helperMissing is used', function() {
-      var string = '{{hello}} {{link_to}}';
-      var context = { hello: 'Hello', world: 'world' };
-
-      var helpers = {
-        helperMissing: function(options) {
+      expectTemplate('{{hello}} {{link_to}}')
+        .withInput({ hello: 'Hello', world: 'world' })
+        .withHelper('helperMissing', function(options) {
           if (options.name === 'link_to') {
             return new Handlebars.SafeString('<a>winning</a>');
           }
-        }
-      };
-
-      shouldCompileTo(string, [context, helpers], 'Hello <a>winning</a>');
+        })
+        .toCompileTo('Hello <a>winning</a>');
     });
   });
 
   describe('knownHelpers', function() {
     it('Known helper should render helper', function() {
-      var template = CompilerContext.compile('{{hello}}', {
-        knownHelpers: { hello: true }
-      });
-
-      var result = template(
-        {},
-        {
-          helpers: {
-            hello: function() {
-              return 'foo';
-            }
-          }
-        }
-      );
-      equal(result, 'foo', "'foo' should === '" + result);
+      expectTemplate('{{hello}}')
+        .withCompileOptions({
+          knownHelpers: { hello: true }
+        })
+        .withHelper('hello', function() {
+          return 'foo';
+        })
+        .toCompileTo('foo');
     });
 
     it('Unknown helper in knownHelpers only mode should be passed as undefined', function() {
-      var template = CompilerContext.compile('{{typeof hello}}', {
-        knownHelpers: { typeof: true },
-        knownHelpersOnly: true
-      });
-
-      var result = template(
-        {},
-        {
-          helpers: {
-            typeof: function(arg) {
-              return typeof arg;
-            },
-            hello: function() {
-              return 'foo';
-            }
-          }
-        }
-      );
-      equal(result, 'undefined', "'undefined' should === '" + result);
+      expectTemplate('{{typeof hello}}')
+        .withCompileOptions({
+          knownHelpers: { typeof: true },
+          knownHelpersOnly: true
+        })
+        .withHelper('typeof', function(arg) {
+          return typeof arg;
+        })
+        .withHelper('hello', function() {
+          return 'foo';
+        })
+        .toCompileTo('undefined');
     });
-    it('Builtin helpers available in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{#unless foo}}bar{{/unless}}', {
-        knownHelpersOnly: true
-      });
 
-      var result = template({});
-      equal(result, 'bar', "'bar' should === '" + result);
+    it('Builtin helpers available in knownHelpers only mode', function() {
+      expectTemplate('{{#unless foo}}bar{{/unless}}')
+        .withCompileOptions({
+          knownHelpersOnly: true
+        })
+        .toCompileTo('bar');
     });
-    it('Field lookup works in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{foo}}', {
-        knownHelpersOnly: true
-      });
 
-      var result = template({ foo: 'bar' });
-      equal(result, 'bar', "'bar' should === '" + result);
+    it('Field lookup works in knownHelpers only mode', function() {
+      expectTemplate('{{foo}}')
+        .withCompileOptions({
+          knownHelpersOnly: true
+        })
+        .withInput({ foo: 'bar' })
+        .toCompileTo('bar');
     });
-    it('Conditional blocks work in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{#foo}}bar{{/foo}}', {
-        knownHelpersOnly: true
-      });
 
-      var result = template({ foo: 'baz' });
-      equal(result, 'bar', "'bar' should === '" + result);
+    it('Conditional blocks work in knownHelpers only mode', function() {
+      expectTemplate('{{#foo}}bar{{/foo}}')
+        .withCompileOptions({
+          knownHelpersOnly: true
+        })
+        .withInput({ foo: 'baz' })
+        .toCompileTo('bar');
     });
-    it('Invert blocks work in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{^foo}}bar{{/foo}}', {
-        knownHelpersOnly: true
-      });
 
-      var result = template({ foo: false });
-      equal(result, 'bar', "'bar' should === '" + result);
+    it('Invert blocks work in knownHelpers only mode', function() {
+      expectTemplate('{{^foo}}bar{{/foo}}')
+        .withCompileOptions({
+          knownHelpersOnly: true
+        })
+        .withInput({ foo: false })
+        .toCompileTo('bar');
     });
+
     it('Functions are bound to the context in knownHelpers only mode', function() {
-      var template = CompilerContext.compile('{{foo}}', {
-        knownHelpersOnly: true
-      });
-      var result = template({
-        foo: function() {
-          return this.bar;
-        },
-        bar: 'bar'
-      });
-      equal(result, 'bar', "'bar' should === '" + result);
+      expectTemplate('{{foo}}')
+        .withCompileOptions({
+          knownHelpersOnly: true
+        })
+        .withInput({
+          foo: function() {
+            return this.bar;
+          },
+          bar: 'bar'
+        })
+        .toCompileTo('bar');
     });
+
     it('Unknown helper call in knownHelpers only mode should throw', function() {
-      shouldThrow(function() {
-        CompilerContext.compile('{{typeof hello}}', { knownHelpersOnly: true });
-      }, Error);
+      expectTemplate('{{typeof hello}}')
+        .withCompileOptions({ knownHelpersOnly: true })
+        .toThrow(Error);
     });
   });
 
   describe('blockHelperMissing', function() {
     it('lambdas are resolved by blockHelperMissing, not handlebars proper', function() {
-      var string = '{{#truthy}}yep{{/truthy}}';
-      var data = {
-        truthy: function() {
-          return true;
-        }
-      };
-      shouldCompileTo(string, data, 'yep');
+      expectTemplate('{{#truthy}}yep{{/truthy}}')
+        .withInput({
+          truthy: function() {
+            return true;
+          }
+        })
+        .toCompileTo('yep');
     });
+
     it('lambdas resolved by blockHelperMissing are bound to the context', function() {
-      var string = '{{#truthy}}yep{{/truthy}}';
-      var boundData = {
-        truthy: function() {
-          return this.truthiness();
-        },
-        truthiness: function() {
-          return false;
-        }
-      };
-      shouldCompileTo(string, boundData, '');
+      expectTemplate('{{#truthy}}yep{{/truthy}}')
+        .withInput({
+          truthy: function() {
+            return this.truthiness();
+          },
+          truthiness: function() {
+            return false;
+          }
+        })
+        .toCompileTo('');
     });
   });
 
   describe('name field', function() {
-    var context = {};
     var helpers = {
       blockHelperMissing: function() {
         return 'missing: ' + arguments[arguments.length - 1].name;
@@ -997,212 +793,173 @@ describe('helpers', function() {
     };
 
     it('should include in ambiguous mustache calls', function() {
-      shouldCompileTo('{{helper}}', [context, helpers], 'ran: helper');
+      expectTemplate('{{helper}}')
+        .withHelpers(helpers)
+        .toCompileTo('ran: helper');
     });
+
     it('should include in helper mustache calls', function() {
-      shouldCompileTo('{{helper 1}}', [context, helpers], 'ran: helper');
+      expectTemplate('{{helper 1}}')
+        .withHelpers(helpers)
+        .toCompileTo('ran: helper');
     });
+
     it('should include in ambiguous block calls', function() {
-      shouldCompileTo(
-        '{{#helper}}{{/helper}}',
-        [context, helpers],
-        'ran: helper'
-      );
+      expectTemplate('{{#helper}}{{/helper}}')
+        .withHelpers(helpers)
+        .toCompileTo('ran: helper');
     });
+
     it('should include in simple block calls', function() {
-      shouldCompileTo(
-        '{{#./helper}}{{/./helper}}',
-        [context, helpers],
-        'missing: ./helper'
-      );
+      expectTemplate('{{#./helper}}{{/./helper}}')
+        .withHelpers(helpers)
+        .toCompileTo('missing: ./helper');
     });
+
     it('should include in helper block calls', function() {
-      shouldCompileTo(
-        '{{#helper 1}}{{/helper}}',
-        [context, helpers],
-        'ran: helper'
-      );
+      expectTemplate('{{#helper 1}}{{/helper}}')
+        .withHelpers(helpers)
+        .toCompileTo('ran: helper');
     });
-    it('should include in known helper calls', function() {
-      var template = CompilerContext.compile('{{helper}}', {
-        knownHelpers: { helper: true },
-        knownHelpersOnly: true
-      });
 
-      equal(template({}, { helpers: helpers }), 'ran: helper');
+    it('should include in known helper calls', function() {
+      expectTemplate('{{helper}}')
+        .withCompileOptions({
+          knownHelpers: { helper: true },
+          knownHelpersOnly: true
+        })
+        .withHelpers(helpers)
+        .toCompileTo('ran: helper');
     });
 
     it('should include full id', function() {
-      shouldCompileTo(
-        '{{#foo.helper}}{{/foo.helper}}',
-        [{ foo: {} }, helpers],
-        'missing: foo.helper'
-      );
+      expectTemplate('{{#foo.helper}}{{/foo.helper}}')
+        .withInput({ foo: {} })
+        .withHelpers(helpers)
+        .toCompileTo('missing: foo.helper');
     });
 
     it('should include full id if a hash is passed', function() {
-      shouldCompileTo(
-        '{{#foo.helper bar=baz}}{{/foo.helper}}',
-        [{ foo: {} }, helpers],
-        'helper missing: foo.helper'
-      );
+      expectTemplate('{{#foo.helper bar=baz}}{{/foo.helper}}')
+        .withInput({ foo: {} })
+        .withHelpers(helpers)
+        .toCompileTo('helper missing: foo.helper');
     });
   });
 
   describe('name conflicts', function() {
     it('helpers take precedence over same-named context properties', function() {
-      var template = CompilerContext.compile('{{goodbye}} {{cruel world}}');
-
-      var helpers = {
-        goodbye: function() {
+      expectTemplate('{{goodbye}} {{cruel world}}')
+        .withHelper('goodbye', function() {
           return this.goodbye.toUpperCase();
-        },
-
-        cruel: function(world) {
+        })
+        .withHelper('cruel', function(world) {
           return 'cruel ' + world.toUpperCase();
-        }
-      };
-
-      var context = {
-        goodbye: 'goodbye',
-        world: 'world'
-      };
-
-      var result = template(context, { helpers: helpers });
-      equals(result, 'GOODBYE cruel WORLD', 'Helper executed');
+        })
+        .withInput({
+          goodbye: 'goodbye',
+          world: 'world'
+        })
+        .withMessage('Helper executed')
+        .toCompileTo('GOODBYE cruel WORLD');
     });
 
     it('helpers take precedence over same-named context properties$', function() {
-      var template = CompilerContext.compile(
-        '{{#goodbye}} {{cruel world}}{{/goodbye}}'
-      );
-
-      var helpers = {
-        goodbye: function(options) {
+      expectTemplate('{{#goodbye}} {{cruel world}}{{/goodbye}}')
+        .withHelper('goodbye', function(options) {
           return this.goodbye.toUpperCase() + options.fn(this);
-        },
-
-        cruel: function(world) {
+        })
+        .withHelper('cruel', function(world) {
           return 'cruel ' + world.toUpperCase();
-        }
-      };
-
-      var context = {
-        goodbye: 'goodbye',
-        world: 'world'
-      };
-
-      var result = template(context, { helpers: helpers });
-      equals(result, 'GOODBYE cruel WORLD', 'Helper executed');
+        })
+        .withInput({
+          goodbye: 'goodbye',
+          world: 'world'
+        })
+        .withMessage('Helper executed')
+        .toCompileTo('GOODBYE cruel WORLD');
     });
 
     it('Scoped names take precedence over helpers', function() {
-      var template = CompilerContext.compile(
-        '{{this.goodbye}} {{cruel world}} {{cruel this.goodbye}}'
-      );
-
-      var helpers = {
-        goodbye: function() {
+      expectTemplate('{{this.goodbye}} {{cruel world}} {{cruel this.goodbye}}')
+        .withHelper('goodbye', function() {
           return this.goodbye.toUpperCase();
-        },
-
-        cruel: function(world) {
+        })
+        .withHelper('cruel', function(world) {
           return 'cruel ' + world.toUpperCase();
-        }
-      };
-
-      var context = {
-        goodbye: 'goodbye',
-        world: 'world'
-      };
-
-      var result = template(context, { helpers: helpers });
-      equals(
-        result,
-        'goodbye cruel WORLD cruel GOODBYE',
-        'Helper not executed'
-      );
+        })
+        .withInput({
+          goodbye: 'goodbye',
+          world: 'world'
+        })
+        .withMessage('Helper not executed')
+        .toCompileTo('goodbye cruel WORLD cruel GOODBYE');
     });
 
     it('Scoped names take precedence over block helpers', function() {
-      var template = CompilerContext.compile(
+      expectTemplate(
         '{{#goodbye}} {{cruel world}}{{/goodbye}} {{this.goodbye}}'
-      );
-
-      var helpers = {
-        goodbye: function(options) {
+      )
+        .withHelper('goodbye', function(options) {
           return this.goodbye.toUpperCase() + options.fn(this);
-        },
-
-        cruel: function(world) {
+        })
+        .withHelper('cruel', function(world) {
           return 'cruel ' + world.toUpperCase();
-        }
-      };
-
-      var context = {
-        goodbye: 'goodbye',
-        world: 'world'
-      };
-
-      var result = template(context, { helpers: helpers });
-      equals(result, 'GOODBYE cruel WORLD goodbye', 'Helper executed');
+        })
+        .withInput({
+          goodbye: 'goodbye',
+          world: 'world'
+        })
+        .withMessage('Helper executed')
+        .toCompileTo('GOODBYE cruel WORLD goodbye');
     });
   });
 
   describe('block params', function() {
     it('should take presedence over context values', function() {
-      var hash = { value: 'foo' };
-      var helpers = {
-        goodbyes: function(options) {
+      expectTemplate('{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}')
+        .withInput({ value: 'foo' })
+        .withHelper('goodbyes', function(options) {
           equals(options.fn.blockParams, 1);
           return options.fn({ value: 'bar' }, { blockParams: [1, 2] });
-        }
-      };
-      shouldCompileTo(
-        '{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}',
-        [hash, helpers],
-        '1foo'
-      );
+        })
+        .toCompileTo('1foo');
     });
+
     it('should take presedence over helper values', function() {
-      var hash = {};
-      var helpers = {
-        value: function() {
+      expectTemplate('{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}')
+        .withHelper('value', function() {
           return 'foo';
-        },
-        goodbyes: function(options) {
+        })
+        .withHelper('goodbyes', function(options) {
           equals(options.fn.blockParams, 1);
           return options.fn({}, { blockParams: [1, 2] });
-        }
-      };
-      shouldCompileTo(
-        '{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{value}}',
-        [hash, helpers],
-        '1foo'
-      );
+        })
+        .toCompileTo('1foo');
     });
+
     it('should not take presedence over pathed values', function() {
-      var hash = { value: 'bar' };
-      var helpers = {
-        value: function() {
+      expectTemplate(
+        '{{#goodbyes as |value|}}{{./value}}{{/goodbyes}}{{value}}'
+      )
+        .withInput({ value: 'bar' })
+        .withHelper('value', function() {
           return 'foo';
-        },
-        goodbyes: function(options) {
+        })
+        .withHelper('goodbyes', function(options) {
           equals(options.fn.blockParams, 1);
           return options.fn(this, { blockParams: [1, 2] });
-        }
-      };
-      shouldCompileTo(
-        '{{#goodbyes as |value|}}{{./value}}{{/goodbyes}}{{value}}',
-        [hash, helpers],
-        'barfoo'
-      );
+        })
+        .toCompileTo('barfoo');
     });
+
     it('should take presednece over parent block params', function() {
-      var hash = { value: 'foo' },
-        value = 1;
-      var helpers = {
-        goodbyes: function(options) {
+      var value = 1;
+      expectTemplate(
+        '{{#goodbyes as |value|}}{{#goodbyes}}{{value}}{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{/goodbyes}}{{/goodbyes}}{{value}}'
+      )
+        .withInput({ value: 'foo' })
+        .withHelper('goodbyes', function(options) {
           return options.fn(
             { value: 'bar' },
             {
@@ -1210,120 +967,68 @@ describe('helpers', function() {
                 options.fn.blockParams === 1 ? [value++, value++] : undefined
             }
           );
-        }
-      };
-      shouldCompileTo(
-        '{{#goodbyes as |value|}}{{#goodbyes}}{{value}}{{#goodbyes as |value|}}{{value}}{{/goodbyes}}{{/goodbyes}}{{/goodbyes}}{{value}}',
-        [hash, helpers],
-        '13foo'
-      );
+        })
+        .toCompileTo('13foo');
     });
 
     it('should allow block params on chained helpers', function() {
-      var hash = { value: 'foo' };
-      var helpers = {
-        goodbyes: function(options) {
+      expectTemplate(
+        '{{#if bar}}{{else goodbyes as |value|}}{{value}}{{/if}}{{value}}'
+      )
+        .withInput({ value: 'foo' })
+        .withHelper('goodbyes', function(options) {
           equals(options.fn.blockParams, 1);
           return options.fn({ value: 'bar' }, { blockParams: [1, 2] });
-        }
-      };
-      shouldCompileTo(
-        '{{#if bar}}{{else goodbyes as |value|}}{{value}}{{/if}}{{value}}',
-        [hash, helpers],
-        '1foo'
-      );
+        })
+        .toCompileTo('1foo');
     });
   });
 
   describe('built-in helpers malformed arguments ', function() {
     it('if helper - too few arguments', function() {
-      var template = CompilerContext.compile('{{#if}}{{/if}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#if}}{{/if}}').toThrow(
         /#if requires exactly one argument/
       );
     });
 
     it('if helper - too many arguments, string', function() {
-      var template = CompilerContext.compile('{{#if test "string"}}{{/if}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#if test "string"}}{{/if}}').toThrow(
         /#if requires exactly one argument/
       );
     });
 
     it('if helper - too many arguments, undefined', function() {
-      var template = CompilerContext.compile('{{#if test undefined}}{{/if}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#if test undefined}}{{/if}}').toThrow(
         /#if requires exactly one argument/
       );
     });
 
     it('if helper - too many arguments, null', function() {
-      var template = CompilerContext.compile('{{#if test null}}{{/if}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#if test null}}{{/if}}').toThrow(
         /#if requires exactly one argument/
       );
     });
 
     it('unless helper - too few arguments', function() {
-      var template = CompilerContext.compile('{{#unless}}{{/unless}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#unless}}{{/unless}}').toThrow(
         /#unless requires exactly one argument/
       );
     });
 
     it('unless helper - too many arguments', function() {
-      var template = CompilerContext.compile(
-        '{{#unless test null}}{{/unless}}'
-      );
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#unless test null}}{{/unless}}').toThrow(
         /#unless requires exactly one argument/
       );
     });
 
     it('with helper - too few arguments', function() {
-      var template = CompilerContext.compile('{{#with}}{{/with}}');
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#with}}{{/with}}').toThrow(
         /#with requires exactly one argument/
       );
     });
 
     it('with helper - too many arguments', function() {
-      var template = CompilerContext.compile(
-        '{{#with test "string"}}{{/with}}'
-      );
-      shouldThrow(
-        function() {
-          template({});
-        },
-        undefined,
+      expectTemplate('{{#with test "string"}}{{/with}}').toThrow(
         /#with requires exactly one argument/
       );
     });
diff --git a/spec/javascript-compiler.js b/spec/javascript-compiler.js
index e97cbb083..ed2dc8c56 100644
--- a/spec/javascript-compiler.js
+++ b/spec/javascript-compiler.js
@@ -20,14 +20,18 @@ describe('javascript-compiler api', function() {
         return parent + '.bar_' + name;
       };
       /* eslint-disable camelcase */
-      shouldCompileTo('{{foo}}', { bar_foo: 'food' }, 'food');
+      expectTemplate('{{foo}}')
+        .withInput({ bar_foo: 'food' })
+        .toCompileTo('food');
       /* eslint-enable camelcase */
     });
 
     // Tests nameLookup dot vs. bracket behavior.  Bracket is required in certain cases
     // to avoid errors in older browsers.
     it('should handle reserved words', function() {
-      shouldCompileTo('{{foo}} {{~null~}}', { foo: 'food' }, 'food');
+      expectTemplate('{{foo}} {{~null~}}')
+        .withInput({ foo: 'food' })
+        .toCompileTo('food');
     });
   });
   describe('#compilerInfo', function() {
@@ -49,7 +53,9 @@ describe('javascript-compiler api', function() {
           throw new Error("It didn't work");
         }
       };
-      shouldCompileTo('{{foo}} ', { foo: 'food' }, 'food ');
+      expectTemplate('{{foo}} ')
+        .withInput({ foo: 'food' })
+        .toCompileTo('food ');
     });
   });
   describe('buffer', function() {
@@ -70,7 +76,9 @@ describe('javascript-compiler api', function() {
       handlebarsEnv.JavaScriptCompiler.prototype.initializeBuffer = function() {
         return this.quotedString('foo_');
       };
-      shouldCompileTo('{{foo}} ', { foo: 'food' }, 'foo_food ');
+      expectTemplate('{{foo}} ')
+        .withInput({ foo: 'food' })
+        .toCompileTo('foo_food ');
     });
     it('should allow append buffer override', function() {
       handlebarsEnv.JavaScriptCompiler.prototype.appendToBuffer = function(
@@ -78,7 +86,9 @@ describe('javascript-compiler api', function() {
       ) {
         return $superAppend.call(this, [string, ' + "_foo"']);
       };
-      shouldCompileTo('{{foo}}', { foo: 'food' }, 'food_foo');
+      expectTemplate('{{foo}}')
+        .withInput({ foo: 'food' })
+        .toCompileTo('food_foo');
     });
   });
 
diff --git a/spec/partials.js b/spec/partials.js
index d00d4147e..df092267d 100644
--- a/spec/partials.js
+++ b/spec/partials.js
@@ -8,18 +8,18 @@ describe('partials', function() {
         { name: 'Alan', url: 'http://alan' }
       ]
     };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
-    );
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }, , false],
-      true,
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
-    );
+
+    expectTemplate(string)
+      .withInput(hash)
+      .withPartials({ dude: partial })
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
+
+    expectTemplate(string)
+      .withInput(hash)
+      .withPartials({ dude: partial })
+      .withRuntimeOptions({ data: false })
+      .withCompileOptions({ data: false })
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
   });
 
   it('dynamic partials', function() {
@@ -36,63 +36,48 @@ describe('partials', function() {
         return 'dude';
       }
     };
-    shouldCompileToWithPartials(
-      string,
-      [hash, helpers, { dude: partial }],
-      true,
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
-    );
-    shouldCompileToWithPartials(
-      string,
-      [hash, helpers, { dude: partial }, , false],
-      true,
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
-    );
+
+    expectTemplate(string)
+      .withInput(hash)
+      .withHelpers(helpers)
+      .withPartials({ dude: partial })
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
+
+    expectTemplate(string)
+      .withInput(hash)
+      .withHelpers(helpers)
+      .withPartials({ dude: partial })
+      .withRuntimeOptions({ data: false })
+      .withCompileOptions({ data: false })
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
   });
+
   it('failing dynamic partials', function() {
-    var string = 'Dudes: {{#dudes}}{{> (partial)}}{{/dudes}}';
-    var partial = '{{name}} ({{url}}) ';
-    var hash = {
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    var helpers = {
-      partial: function() {
+    expectTemplate('Dudes: {{#dudes}}{{> (partial)}}{{/dudes}}')
+      .withInput({
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withHelper('partial', function() {
         return 'missing';
-      }
-    };
-    shouldThrow(
-      function() {
-        shouldCompileToWithPartials(
-          string,
-          [hash, helpers, { dude: partial }],
-          true,
-          'Dudes: Yehuda (http://yehuda) Alan (http://alan) '
-        );
-      },
-      Handlebars.Exception,
-      'The partial missing could not be found'
-    );
+      })
+      .withPartial('dude', '{{name}} ({{url}}) ')
+      .toThrow(Handlebars.Exception, 'The partial missing could not be found');
   });
 
   it('partials with context', function() {
-    var string = 'Dudes: {{>dude dudes}}';
-    var partial = '{{#this}}{{name}} ({{url}}) {{/this}}';
-    var hash = {
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
-      'Partials can be passed a context'
-    );
+    expectTemplate('Dudes: {{>dude dudes}}')
+      .withInput({
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withPartial('dude', '{{#this}}{{name}} ({{url}}) {{/this}}')
+      .withMessage('Partials can be passed a context')
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
   });
 
   it('partials with no context', function() {
@@ -103,98 +88,73 @@ describe('partials', function() {
         { name: 'Alan', url: 'http://alan' }
       ]
     };
-    shouldCompileToWithPartials(
-      'Dudes: {{#dudes}}{{>dude}}{{/dudes}}',
-      [hash, {}, { dude: partial }, { explicitPartialContext: true }],
-      true,
-      'Dudes:  ()  () '
-    );
-    shouldCompileToWithPartials(
-      'Dudes: {{#dudes}}{{>dude name="foo"}}{{/dudes}}',
-      [hash, {}, { dude: partial }, { explicitPartialContext: true }],
-      true,
-      'Dudes: foo () foo () '
-    );
+
+    expectTemplate('Dudes: {{#dudes}}{{>dude}}{{/dudes}}')
+      .withInput(hash)
+      .withPartial('dude', partial)
+      .withCompileOptions({ explicitPartialContext: true })
+      .toCompileTo('Dudes:  ()  () ');
+
+    expectTemplate('Dudes: {{#dudes}}{{>dude name="foo"}}{{/dudes}}')
+      .withInput(hash)
+      .withPartial('dude', partial)
+      .withCompileOptions({ explicitPartialContext: true })
+      .toCompileTo('Dudes: foo () foo () ');
   });
 
   it('partials with string context', function() {
-    var string = 'Dudes: {{>dude "dudes"}}';
-    var partial = '{{.}}';
-    var hash = {};
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes: dudes'
-    );
+    expectTemplate('Dudes: {{>dude "dudes"}}')
+      .withPartial('dude', '{{.}}')
+      .toCompileTo('Dudes: dudes');
   });
 
   it('partials with undefined context', function() {
-    var string = 'Dudes: {{>dude dudes}}';
-    var partial = '{{foo}} Empty';
-    var hash = {};
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes:  Empty'
-    );
+    expectTemplate('Dudes: {{>dude dudes}}')
+      .withPartial('dude', '{{foo}} Empty')
+      .toCompileTo('Dudes:  Empty');
   });
 
   it('partials with duplicate parameters', function() {
-    shouldThrow(
-      function() {
-        CompilerContext.compile('Dudes: {{>dude dudes foo bar=baz}}');
-      },
+    expectTemplate('Dudes: {{>dude dudes foo bar=baz}}').toThrow(
       Error,
       'Unsupported number of partial arguments: 2 - 1:7'
     );
   });
 
   it('partials with parameters', function() {
-    var string = 'Dudes: {{#dudes}}{{> dude others=..}}{{/dudes}}';
-    var partial = '{{others.foo}}{{name}} ({{url}}) ';
-    var hash = {
-      foo: 'bar',
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes: barYehuda (http://yehuda) barAlan (http://alan) ',
-      'Basic partials output based on current context.'
-    );
+    expectTemplate('Dudes: {{#dudes}}{{> dude others=..}}{{/dudes}}')
+      .withInput({
+        foo: 'bar',
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withPartial('dude', '{{others.foo}}{{name}} ({{url}}) ')
+      .withMessage('Basic partials output based on current context.')
+      .toCompileTo('Dudes: barYehuda (http://yehuda) barAlan (http://alan) ');
   });
 
   it('partial in a partial', function() {
-    var string = 'Dudes: {{#dudes}}{{>dude}}{{/dudes}}';
-    var dude = '{{name}} {{> url}} ';
-    var url = '<a href="{{url}}">{{url}}</a>';
-    var hash = {
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: dude, url: url }],
-      true,
-      'Dudes: Yehuda <a href="http://yehuda">http://yehuda</a> Alan <a href="http://alan">http://alan</a> ',
-      'Partials are rendered inside of other partials'
-    );
+    expectTemplate('Dudes: {{#dudes}}{{>dude}}{{/dudes}}')
+      .withInput({
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withPartials({
+        dude: '{{name}} {{> url}} ',
+        url: '<a href="{{url}}">{{url}}</a>'
+      })
+      .withMessage('Partials are rendered inside of other partials')
+      .toCompileTo(
+        'Dudes: Yehuda <a href="http://yehuda">http://yehuda</a> Alan <a href="http://alan">http://alan</a> '
+      );
   });
 
   it('rendering undefined partial throws an exception', function() {
-    shouldThrow(
-      function() {
-        var template = CompilerContext.compile('{{> whatever}}');
-        template();
-      },
+    expectTemplate('{{> whatever}}').toThrow(
       Handlebars.Exception,
       'The partial whatever could not be found'
     );
@@ -212,87 +172,60 @@ describe('partials', function() {
   });
 
   it('rendering template partial in vm mode throws an exception', function() {
-    shouldThrow(
-      function() {
-        var template = CompilerContext.compile('{{> whatever}}');
-        template();
-      },
+    expectTemplate('{{> whatever}}').toThrow(
       Handlebars.Exception,
       'The partial whatever could not be found'
     );
   });
 
   it('rendering function partial in vm mode', function() {
-    var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
     function partial(context) {
       return context.name + ' (' + context.url + ') ';
     }
-    var hash = {
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    shouldCompileTo(
-      string,
-      [hash, {}, { dude: partial }],
-      'Dudes: Yehuda (http://yehuda) Alan (http://alan) ',
-      'Function partials output based in VM.'
-    );
+    expectTemplate('Dudes: {{#dudes}}{{> dude}}{{/dudes}}')
+      .withInput({
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withPartial('dude', partial)
+      .withMessage('Function partials output based in VM.')
+      .toCompileTo('Dudes: Yehuda (http://yehuda) Alan (http://alan) ');
   });
 
   it('GH-14: a partial preceding a selector', function() {
-    var string = 'Dudes: {{>dude}} {{anotherDude}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: dude }],
-      true,
-      'Dudes: Jeepers Creepers',
-      'Regular selectors can follow a partial'
-    );
+    expectTemplate('Dudes: {{>dude}} {{anotherDude}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('dude', '{{name}}')
+      .withMessage('Regular selectors can follow a partial')
+      .toCompileTo('Dudes: Jeepers Creepers');
   });
 
   it('Partials with slash paths', function() {
-    var string = 'Dudes: {{> shared/dude}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { 'shared/dude': dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal paths'
-    );
+    expectTemplate('Dudes: {{> shared/dude}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('shared/dude', '{{name}}')
+      .withMessage('Partials can use literal paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('Partials with slash and point paths', function() {
-    var string = 'Dudes: {{> shared/dude.thing}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { 'shared/dude.thing': dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal with points in paths'
-    );
+    expectTemplate('Dudes: {{> shared/dude.thing}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('shared/dude.thing', '{{name}}')
+      .withMessage('Partials can use literal with points in paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('Global Partials', function() {
     handlebarsEnv.registerPartial('globalTest', '{{anotherDude}}');
 
-    var string = 'Dudes: {{> shared/dude}} {{> globalTest}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { 'shared/dude': dude }],
-      true,
-      'Dudes: Jeepers Creepers',
-      'Partials can use globals or passed'
-    );
+    expectTemplate('Dudes: {{> shared/dude}} {{> globalTest}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('shared/dude', '{{name}}')
+      .withMessage('Partials can use globals or passed')
+      .toCompileTo('Dudes: Jeepers Creepers');
 
     handlebarsEnv.unregisterPartial('globalTest');
     equals(handlebarsEnv.partials.globalTest, undefined);
@@ -304,408 +237,317 @@ describe('partials', function() {
       globalTest: '{{anotherDude}}'
     });
 
-    var string = 'Dudes: {{> shared/dude}} {{> globalTest}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash],
-      true,
-      'Dudes: Jeepers Creepers',
-      'Partials can use globals or passed'
-    );
+    expectTemplate('Dudes: {{> shared/dude}} {{> globalTest}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('notused', 'notused') // trick the test bench into running with partials enabled
+      .withMessage('Partials can use globals or passed')
+      .toCompileTo('Dudes: Jeepers Creepers');
   });
 
   it('Partials with integer path', function() {
-    var string = 'Dudes: {{> 404}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { 404: dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal paths'
-    );
+    expectTemplate('Dudes: {{> 404}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial(404, '{{name}}')
+      .withMessage('Partials can use literal paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('Partials with complex path', function() {
-    var string = 'Dudes: {{> 404/asdf?.bar}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { '404/asdf?.bar': dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal paths'
-    );
+    expectTemplate('Dudes: {{> 404/asdf?.bar}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('404/asdf?.bar', '{{name}}')
+      .withMessage('Partials can use literal paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('Partials with escaped', function() {
-    var string = 'Dudes: {{> [+404/asdf?.bar]}}';
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { '+404/asdf?.bar': dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal paths'
-    );
+    expectTemplate('Dudes: {{> [+404/asdf?.bar]}}')
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('+404/asdf?.bar', '{{name}}')
+      .withMessage('Partials can use literal paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('Partials with string', function() {
-    var string = "Dudes: {{> '+404/asdf?.bar'}}";
-    var dude = '{{name}}';
-    var hash = { name: 'Jeepers', anotherDude: 'Creepers' };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { '+404/asdf?.bar': dude }],
-      true,
-      'Dudes: Jeepers',
-      'Partials can use literal paths'
-    );
+    expectTemplate("Dudes: {{> '+404/asdf?.bar'}}")
+      .withInput({ name: 'Jeepers', anotherDude: 'Creepers' })
+      .withPartial('+404/asdf?.bar', '{{name}}')
+      .withMessage('Partials can use literal paths')
+      .toCompileTo('Dudes: Jeepers');
   });
 
   it('should handle empty partial', function() {
-    var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
-    var partial = '';
-    var hash = {
-      dudes: [
-        { name: 'Yehuda', url: 'http://yehuda' },
-        { name: 'Alan', url: 'http://alan' }
-      ]
-    };
-    shouldCompileToWithPartials(
-      string,
-      [hash, {}, { dude: partial }],
-      true,
-      'Dudes: '
-    );
+    expectTemplate('Dudes: {{#dudes}}{{> dude}}{{/dudes}}')
+      .withInput({
+        dudes: [
+          { name: 'Yehuda', url: 'http://yehuda' },
+          { name: 'Alan', url: 'http://alan' }
+        ]
+      })
+      .withPartial('dude', '')
+      .toCompileTo('Dudes: ');
   });
 
   it('throw on missing partial', function() {
     var compile = handlebarsEnv.compile;
+    var compileWithPartial = CompilerContext.compileWithPartial;
     handlebarsEnv.compile = undefined;
-    shouldThrow(
-      function() {
-        shouldCompileTo('{{> dude}}', [{}, {}, { dude: 'fail' }], '');
-      },
-      Error,
-      /The partial dude could not be compiled/
-    );
+    CompilerContext.compileWithPartial = CompilerContext.compile;
+    expectTemplate('{{> dude}}')
+      .withPartials({ dude: 'fail' })
+      .toThrow(Error, /The partial dude could not be compiled/);
     handlebarsEnv.compile = compile;
+    CompilerContext.compileWithPartial = compileWithPartial;
   });
 
   describe('partial blocks', function() {
     it('should render partial block as default', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}success{{/dude}}',
-        [{}, {}, {}],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude}}success{{/dude}}').toCompileTo('success');
     });
+
     it('should execute default block with proper context', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude context}}{{value}}{{/dude}}',
-        [{ context: { value: 'success' } }, {}, {}],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude context}}{{value}}{{/dude}}')
+        .withInput({ context: { value: 'success' } })
+        .toCompileTo('success');
     });
+
     it('should propagate block parameters to default block', function() {
-      shouldCompileToWithPartials(
-        '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}',
-        [{ context: { value: 'success' } }, {}, {}],
-        true,
-        'success'
-      );
+      expectTemplate(
+        '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}'
+      )
+        .withInput({ context: { value: 'success' } })
+        .toCompileTo('success');
     });
 
     it('should not use partial block if partial exists', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}fail{{/dude}}',
-        [{}, {}, { dude: 'success' }],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude}}fail{{/dude}}')
+        .withPartials({ dude: 'success' })
+        .toCompileTo('success');
     });
 
     it('should render block from partial', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}success{{/dude}}',
-        [{}, {}, { dude: '{{> @partial-block }}' }],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude}}success{{/dude}}')
+        .withPartials({ dude: '{{> @partial-block }}' })
+        .toCompileTo('success');
     });
+
     it('should be able to render the partial-block twice', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}success{{/dude}}',
-        [{}, {}, { dude: '{{> @partial-block }} {{> @partial-block }}' }],
-        true,
-        'success success'
-      );
+      expectTemplate('{{#> dude}}success{{/dude}}')
+        .withPartials({ dude: '{{> @partial-block }} {{> @partial-block }}' })
+        .toCompileTo('success success');
     });
+
     it('should render block from partial with context', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}{{value}}{{/dude}}',
-        [
-          { context: { value: 'success' } },
-          {},
-          { dude: '{{#with context}}{{> @partial-block }}{{/with}}' }
-        ],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude}}{{value}}{{/dude}}')
+        .withInput({ context: { value: 'success' } })
+        .withPartials({
+          dude: '{{#with context}}{{> @partial-block }}{{/with}}'
+        })
+        .toCompileTo('success');
     });
 
     it('should be able to access the @data frame from a partial-block', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}in-block: {{@root/value}}{{/dude}}',
-        [
-          { value: 'success' },
-          {},
-          {
-            dude:
-              '<code>before-block: {{@root/value}} {{>   @partial-block }}</code>'
-          }
-        ],
-        true,
-        '<code>before-block: success in-block: success</code>'
-      );
+      expectTemplate('{{#> dude}}in-block: {{@root/value}}{{/dude}}')
+        .withInput({ value: 'success' })
+        .withPartials({
+          dude:
+            '<code>before-block: {{@root/value}} {{>   @partial-block }}</code>'
+        })
+        .toCompileTo('<code>before-block: success in-block: success</code>');
     });
 
     it('should allow the #each-helper to be used along with partial-blocks', function() {
-      shouldCompileToWithPartials(
-        '<template>{{#> list value}}value = {{.}}{{/list}}</template>',
-        [
-          { value: ['a', 'b', 'c'] },
-          {},
-          {
-            list:
-              '<list>{{#each .}}<item>{{> @partial-block}}</item>{{/each}}</list>'
-          }
-        ],
-        true,
-        '<template><list><item>value = a</item><item>value = b</item><item>value = c</item></list></template>'
-      );
+      expectTemplate(
+        '<template>{{#> list value}}value = {{.}}{{/list}}</template>'
+      )
+        .withInput({
+          value: ['a', 'b', 'c']
+        })
+        .withPartials({
+          list:
+            '<list>{{#each .}}<item>{{> @partial-block}}</item>{{/each}}</list>'
+        })
+        .toCompileTo(
+          '<template><list><item>value = a</item><item>value = b</item><item>value = c</item></list></template>'
+        );
     });
+
     it('should render block from partial with context (twice)', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}{{value}}{{/dude}}',
-        [
-          { context: { value: 'success' } },
-          {},
-          {
-            dude:
-              '{{#with context}}{{> @partial-block }} {{> @partial-block }}{{/with}}'
-          }
-        ],
-        true,
-        'success success'
-      );
+      expectTemplate('{{#> dude}}{{value}}{{/dude}}')
+        .withInput({ context: { value: 'success' } })
+        .withPartials({
+          dude:
+            '{{#with context}}{{> @partial-block }} {{> @partial-block }}{{/with}}'
+        })
+        .toCompileTo('success success');
     });
+
     it('should render block from partial with context', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}{{../context/value}}{{/dude}}',
-        [
-          { context: { value: 'success' } },
-          {},
-          { dude: '{{#with context}}{{> @partial-block }}{{/with}}' }
-        ],
-        true,
-        'success'
-      );
+      expectTemplate('{{#> dude}}{{../context/value}}{{/dude}}')
+        .withInput({ context: { value: 'success' } })
+        .withPartials({
+          dude: '{{#with context}}{{> @partial-block }}{{/with}}'
+        })
+        .toCompileTo('success');
     });
+
     it('should render block from partial with block params', function() {
-      shouldCompileToWithPartials(
-        '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}',
-        [
-          { context: { value: 'success' } },
-          {},
-          { dude: '{{> @partial-block }}' }
-        ],
-        true,
-        'success'
-      );
+      expectTemplate(
+        '{{#with context as |me|}}{{#> dude}}{{me.value}}{{/dude}}{{/with}}'
+      )
+        .withInput({ context: { value: 'success' } })
+        .withPartials({ dude: '{{> @partial-block }}' })
+        .toCompileTo('success');
     });
+
     it('should render nested partial blocks', function() {
-      shouldCompileToWithPartials(
-        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
-        [
-          { value: 'success' },
-          {},
-          {
-            outer:
-              '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}</outer>',
-            nested: '<nested>{{> @partial-block}}</nested>'
-          }
-        ],
-        true,
-        '<template><outer><nested><outer-block>success</outer-block></nested></outer></template>'
-      );
+      expectTemplate('<template>{{#> outer}}{{value}}{{/outer}}</template>')
+        .withInput({ value: 'success' })
+        .withPartials({
+          outer:
+            '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}</outer>',
+          nested: '<nested>{{> @partial-block}}</nested>'
+        })
+        .toCompileTo(
+          '<template><outer><nested><outer-block>success</outer-block></nested></outer></template>'
+        );
     });
+
     it('should render nested partial blocks at different nesting levels', function() {
-      shouldCompileToWithPartials(
-        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
-        [
-          { value: 'success' },
-          {},
-          {
-            outer:
-              '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}</outer>',
-            nested: '<nested>{{> @partial-block}}</nested>'
-          }
-        ],
-        true,
-        '<template><outer><nested><outer-block>success</outer-block></nested>success</outer></template>'
-      );
+      expectTemplate('<template>{{#> outer}}{{value}}{{/outer}}</template>')
+        .withInput({ value: 'success' })
+        .withPartials({
+          outer:
+            '<outer>{{#> nested}}<outer-block>{{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}</outer>',
+          nested: '<nested>{{> @partial-block}}</nested>'
+        })
+        .toCompileTo(
+          '<template><outer><nested><outer-block>success</outer-block></nested>success</outer></template>'
+        );
     });
+
     it('should render nested partial blocks at different nesting levels (twice)', function() {
-      shouldCompileToWithPartials(
-        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
-        [
-          { value: 'success' },
-          {},
-          {
-            outer:
-              '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}+{{> @partial-block}}</outer>',
-            nested: '<nested>{{> @partial-block}}</nested>'
-          }
-        ],
-        true,
-        '<template><outer><nested><outer-block>success success</outer-block></nested>success+success</outer></template>'
-      );
+      expectTemplate('<template>{{#> outer}}{{value}}{{/outer}}</template>')
+        .withInput({ value: 'success' })
+        .withPartials({
+          outer:
+            '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}{{> @partial-block}}+{{> @partial-block}}</outer>',
+          nested: '<nested>{{> @partial-block}}</nested>'
+        })
+        .toCompileTo(
+          '<template><outer><nested><outer-block>success success</outer-block></nested>success+success</outer></template>'
+        );
     });
+
     it('should render nested partial blocks (twice at each level)', function() {
-      shouldCompileToWithPartials(
-        '<template>{{#> outer}}{{value}}{{/outer}}</template>',
-        [
-          { value: 'success' },
-          {},
-          {
-            outer:
-              '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}</outer>',
-            nested: '<nested>{{> @partial-block}}{{> @partial-block}}</nested>'
-          }
-        ],
-        true,
-        '<template><outer>' +
-          '<nested><outer-block>success success</outer-block><outer-block>success success</outer-block></nested>' +
-          '</outer></template>'
-      );
+      expectTemplate('<template>{{#> outer}}{{value}}{{/outer}}</template>')
+        .withInput({ value: 'success' })
+        .withPartials({
+          outer:
+            '<outer>{{#> nested}}<outer-block>{{> @partial-block}} {{> @partial-block}}</outer-block>{{/nested}}</outer>',
+          nested: '<nested>{{> @partial-block}}{{> @partial-block}}</nested>'
+        })
+        .toCompileTo(
+          '<template><outer>' +
+            '<nested><outer-block>success success</outer-block><outer-block>success success</outer-block></nested>' +
+            '</outer></template>'
+        );
     });
   });
 
   describe('inline partials', function() {
     it('should define inline partials for template', function() {
-      shouldCompileTo(
-        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
-        {},
-        'success'
-      );
+      expectTemplate(
+        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}'
+      ).toCompileTo('success');
     });
+
     it('should overwrite multiple partials in the same template', function() {
-      shouldCompileTo(
-        '{{#*inline "myPartial"}}fail{{/inline}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
-        {},
-        'success'
-      );
+      expectTemplate(
+        '{{#*inline "myPartial"}}fail{{/inline}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}'
+      ).toCompileTo('success');
     });
+
     it('should define inline partials for block', function() {
-      shouldCompileTo(
-        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}',
-        {},
-        'success'
-      );
-      shouldThrow(
-        function() {
-          shouldCompileTo(
-            '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{/with}}{{> myPartial}}',
-            {},
-            'success'
-          );
-        },
-        Error,
-        /myPartial could not/
-      );
+      expectTemplate(
+        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}'
+      ).toCompileTo('success');
+
+      expectTemplate(
+        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{/with}}{{> myPartial}}'
+      ).toThrow(Error, /myPartial could not/);
     });
+
     it('should override global partials', function() {
-      shouldCompileTo(
-        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}',
-        {
-          hash: {},
-          partials: {
-            myPartial: function() {
-              return 'fail';
-            }
+      expectTemplate(
+        '{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}'
+      )
+        .withPartials({
+          myPartial: function() {
+            return 'fail';
           }
-        },
-        'success'
-      );
+        })
+        .toCompileTo('success');
     });
+
     it('should override template partials', function() {
-      shouldCompileTo(
-        '{{#*inline "myPartial"}}fail{{/inline}}{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}',
-        {},
-        'success'
-      );
+      expectTemplate(
+        '{{#*inline "myPartial"}}fail{{/inline}}{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{> myPartial}}{{/with}}'
+      ).toCompileTo('success');
     });
+
     it('should override partials down the entire stack', function() {
-      shouldCompileTo(
-        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{#with .}}{{#with .}}{{> myPartial}}{{/with}}{{/with}}{{/with}}',
-        {},
-        'success'
-      );
+      expectTemplate(
+        '{{#with .}}{{#*inline "myPartial"}}success{{/inline}}{{#with .}}{{#with .}}{{> myPartial}}{{/with}}{{/with}}{{/with}}'
+      ).toCompileTo('success');
     });
 
     it('should define inline partials for partial call', function() {
-      shouldCompileToWithPartials(
-        '{{#*inline "myPartial"}}success{{/inline}}{{> dude}}',
-        [{}, {}, { dude: '{{> myPartial }}' }],
-        true,
-        'success'
-      );
+      expectTemplate('{{#*inline "myPartial"}}success{{/inline}}{{> dude}}')
+        .withPartials({ dude: '{{> myPartial }}' })
+        .toCompileTo('success');
     });
+
     it('should define inline partials in partial block call', function() {
-      shouldCompileToWithPartials(
-        '{{#> dude}}{{#*inline "myPartial"}}success{{/inline}}{{/dude}}',
-        [{}, {}, { dude: '{{> myPartial }}' }],
-        true,
-        'success'
-      );
+      expectTemplate(
+        '{{#> dude}}{{#*inline "myPartial"}}success{{/inline}}{{/dude}}'
+      )
+        .withPartials({ dude: '{{> myPartial }}' })
+        .toCompileTo('success');
     });
+
     it('should render nested inline partials', function() {
-      shouldCompileToWithPartials(
+      expectTemplate(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
           '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
-          '{{#>outer}}{{value}}{{/outer}}',
-        [{ value: 'success' }, {}, {}],
-        true,
-        '<inner><outer-block>success</outer-block></inner>'
-      );
+          '{{#>outer}}{{value}}{{/outer}}'
+      )
+        .withInput({ value: 'success' })
+        .toCompileTo('<inner><outer-block>success</outer-block></inner>');
     });
+
     it('should render nested inline partials with partial-blocks on different nesting levels', function() {
-      shouldCompileToWithPartials(
+      expectTemplate(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}}</outer-block>{{/inner}}{{>@partial-block}}{{/inline}}' +
           '{{#*inline "inner"}}<inner>{{>@partial-block}}</inner>{{/inline}}' +
-          '{{#>outer}}{{value}}{{/outer}}',
-        [{ value: 'success' }, {}, {}],
-        true,
-        '<inner><outer-block>success</outer-block></inner>success'
-      );
+          '{{#>outer}}{{value}}{{/outer}}'
+      )
+        .withInput({ value: 'success' })
+        .toCompileTo(
+          '<inner><outer-block>success</outer-block></inner>success'
+        );
     });
+
     it('should render nested inline partials (twice at each level)', function() {
-      shouldCompileToWithPartials(
+      expectTemplate(
         '{{#*inline "outer"}}{{#>inner}}<outer-block>{{>@partial-block}} {{>@partial-block}}</outer-block>{{/inner}}{{/inline}}' +
           '{{#*inline "inner"}}<inner>{{>@partial-block}}{{>@partial-block}}</inner>{{/inline}}' +
-          '{{#>outer}}{{value}}{{/outer}}',
-        [{ value: 'success' }, {}, {}],
-        true,
-        '<inner><outer-block>success success</outer-block><outer-block>success success</outer-block></inner>'
-      );
+          '{{#>outer}}{{value}}{{/outer}}'
+      )
+        .withInput({ value: 'success' })
+        .toCompileTo(
+          '<inner><outer-block>success success</outer-block><outer-block>success success</outer-block></inner>'
+        );
     });
   });
 
@@ -720,125 +562,119 @@ describe('partials', function() {
 
   describe('standalone partials', function() {
     it('indented partials', function() {
-      var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
-      var dude = '{{name}}\n';
-      var hash = {
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: dude }],
-        true,
-        'Dudes:\n  Yehuda\n  Alan\n'
-      );
+      expectTemplate('Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}')
+        .withInput({
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartial('dude', '{{name}}\n')
+        .toCompileTo('Dudes:\n  Yehuda\n  Alan\n');
     });
+
     it('nested indented partials', function() {
-      var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
-      var dude = '{{name}}\n {{> url}}';
-      var url = '{{url}}!\n';
-      var hash = {
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: dude, url: url }],
-        true,
-        'Dudes:\n  Yehuda\n   http://yehuda!\n  Alan\n   http://alan!\n'
-      );
+      expectTemplate('Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}')
+        .withInput({
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({
+          dude: '{{name}}\n {{> url}}',
+          url: '{{url}}!\n'
+        })
+        .toCompileTo(
+          'Dudes:\n  Yehuda\n   http://yehuda!\n  Alan\n   http://alan!\n'
+        );
     });
+
     it('prevent nested indented partials', function() {
-      var string = 'Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}';
-      var dude = '{{name}}\n {{> url}}';
-      var url = '{{url}}!\n';
-      var hash = {
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: dude, url: url }, { preventIndent: true }],
-        true,
-        'Dudes:\n  Yehuda\n http://yehuda!\n  Alan\n http://alan!\n'
-      );
+      expectTemplate('Dudes:\n{{#dudes}}\n  {{>dude}}\n{{/dudes}}')
+        .withInput({
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({
+          dude: '{{name}}\n {{> url}}',
+          url: '{{url}}!\n'
+        })
+        .withCompileOptions({ preventIndent: true })
+        .toCompileTo(
+          'Dudes:\n  Yehuda\n http://yehuda!\n  Alan\n http://alan!\n'
+        );
     });
   });
 
   describe('compat mode', function() {
     it('partials can access parents', function() {
-      var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
-      var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {
-        root: 'yes',
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: partial }, true],
-        true,
-        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
-      );
+      expectTemplate('Dudes: {{#dudes}}{{> dude}}{{/dudes}}')
+        .withInput({
+          root: 'yes',
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({ dude: '{{name}} ({{url}}) {{root}} ' })
+        .withCompileOptions({ compat: true })
+        .toCompileTo(
+          'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+        );
     });
+
     it('partials can access parents with custom context', function() {
-      var string = 'Dudes: {{#dudes}}{{> dude "test"}}{{/dudes}}';
-      var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {
-        root: 'yes',
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: partial }, true],
-        true,
-        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
-      );
+      expectTemplate('Dudes: {{#dudes}}{{> dude "test"}}{{/dudes}}')
+        .withInput({
+          root: 'yes',
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({ dude: '{{name}} ({{url}}) {{root}} ' })
+        .withCompileOptions({ compat: true })
+        .toCompileTo(
+          'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+        );
     });
+
     it('partials can access parents without data', function() {
-      var string = 'Dudes: {{#dudes}}{{> dude}}{{/dudes}}';
-      var partial = '{{name}} ({{url}}) {{root}} ';
-      var hash = {
-        root: 'yes',
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: partial }, true, false],
-        true,
-        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
-      );
+      expectTemplate('Dudes: {{#dudes}}{{> dude}}{{/dudes}}')
+        .withInput({
+          root: 'yes',
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({ dude: '{{name}} ({{url}}) {{root}} ' })
+        .withRuntimeOptions({ data: false })
+        .withCompileOptions({ data: false, compat: true })
+        .toCompileTo(
+          'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+        );
     });
+
     it('partials inherit compat', function() {
-      var string = 'Dudes: {{> dude}}';
-      var partial = '{{#dudes}}{{name}} ({{url}}) {{root}} {{/dudes}}';
-      var hash = {
-        root: 'yes',
-        dudes: [
-          { name: 'Yehuda', url: 'http://yehuda' },
-          { name: 'Alan', url: 'http://alan' }
-        ]
-      };
-      shouldCompileToWithPartials(
-        string,
-        [hash, {}, { dude: partial }, true],
-        true,
-        'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
-      );
+      expectTemplate('Dudes: {{> dude}}')
+        .withInput({
+          root: 'yes',
+          dudes: [
+            { name: 'Yehuda', url: 'http://yehuda' },
+            { name: 'Alan', url: 'http://alan' }
+          ]
+        })
+        .withPartials({
+          dude: '{{#dudes}}{{name}} ({{url}}) {{root}} {{/dudes}}'
+        })
+        .withCompileOptions({ compat: true })
+        .toCompileTo(
+          'Dudes: Yehuda (http://yehuda) yes Alan (http://alan) yes '
+        );
     });
   });
 });
diff --git a/spec/regressions.js b/spec/regressions.js
index f6147ad6e..86d4634d2 100644
--- a/spec/regressions.js
+++ b/spec/regressions.js
@@ -1,61 +1,53 @@
 describe('Regressions', function() {
   it('GH-94: Cannot read property of undefined', function() {
-    var data = {
-      books: [
-        {
-          title: 'The origin of species',
-          author: {
-            name: 'Charles Darwin'
+    expectTemplate('{{#books}}{{title}}{{author.name}}{{/books}}')
+      .withInput({
+        books: [
+          {
+            title: 'The origin of species',
+            author: {
+              name: 'Charles Darwin'
+            }
+          },
+          {
+            title: 'Lazarillo de Tormes'
           }
-        },
-        {
-          title: 'Lazarillo de Tormes'
-        }
-      ]
-    };
-    var string = '{{#books}}{{title}}{{author.name}}{{/books}}';
-    shouldCompileTo(
-      string,
-      data,
-      'The origin of speciesCharles DarwinLazarillo de Tormes',
-      'Renders without an undefined property error'
-    );
+        ]
+      })
+      .withMessage('Renders without an undefined property error')
+      .toCompileTo('The origin of speciesCharles DarwinLazarillo de Tormes');
   });
 
   it("GH-150: Inverted sections print when they shouldn't", function() {
     var string = '{{^set}}not set{{/set}} :: {{#set}}set{{/set}}';
 
-    shouldCompileTo(
-      string,
-      {},
-      'not set :: ',
-      "inverted sections run when property isn't present in context"
-    );
-    shouldCompileTo(
-      string,
-      { set: undefined },
-      'not set :: ',
-      'inverted sections run when property is undefined'
-    );
-    shouldCompileTo(
-      string,
-      { set: false },
-      'not set :: ',
-      'inverted sections run when property is false'
-    );
-    shouldCompileTo(
-      string,
-      { set: true },
-      ' :: set',
-      "inverted sections don't run when property is true"
-    );
+    expectTemplate(string)
+      .withMessage(
+        "inverted sections run when property isn't present in context"
+      )
+      .toCompileTo('not set :: ');
+
+    expectTemplate(string)
+      .withInput({ set: undefined })
+      .withMessage('inverted sections run when property is undefined')
+      .toCompileTo('not set :: ');
+
+    expectTemplate(string)
+      .withInput({ set: false })
+      .withMessage('inverted sections run when property is false')
+      .toCompileTo('not set :: ');
+
+    expectTemplate(string)
+      .withInput({ set: true })
+      .withMessage("inverted sections don't run when property is true")
+      .toCompileTo(' :: set');
   });
 
   it('GH-158: Using array index twice, breaks the template', function() {
-    var string = '{{arr.[0]}}, {{arr.[1]}}';
-    var data = { arr: [1, 2] };
-
-    shouldCompileTo(string, data, '1, 2', 'it works as expected');
+    expectTemplate('{{arr.[0]}}, {{arr.[1]}}')
+      .withInput({ arr: [1, 2] })
+      .withMessage('it works as expected')
+      .toCompileTo('1, 2');
   });
 
   it("bug reported by @fat where lambdas weren't being properly resolved", function() {
@@ -73,6 +65,7 @@ describe('Regressions', function() {
       '\n' +
       '<small>Nothing to check out...</small>\n' +
       '{{/hasThings}}';
+
     var data = {
       thing: function() {
         return 'blah';
@@ -95,25 +88,22 @@ describe('Regressions', function() {
       '<li class=two>@dhg</li>\n' +
       '<li class=three>@sayrer</li>\n' +
       '</ul>.\n';
-    shouldCompileTo(string, data, output);
+
+    expectTemplate(string)
+      .withInput(data)
+      .toCompileTo(output);
   });
 
   it('GH-408: Multiple loops fail', function() {
-    var context = [
-      { name: 'John Doe', location: { city: 'Chicago' } },
-      { name: 'Jane Doe', location: { city: 'New York' } }
-    ];
-
-    var template = CompilerContext.compile(
+    expectTemplate(
       '{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}{{#.}}{{name}}{{/.}}'
-    );
-
-    var result = template(context);
-    equals(
-      result,
-      'John DoeJane DoeJohn DoeJane DoeJohn DoeJane Doe',
-      'It should output multiple times'
-    );
+    )
+      .withInput([
+        { name: 'John Doe', location: { city: 'Chicago' } },
+        { name: 'Jane Doe', location: { city: 'New York' } }
+      ])
+      .withMessage('It should output multiple times')
+      .toCompileTo('John DoeJane DoeJohn DoeJane DoeJohn DoeJane Doe');
   });
 
   it('GS-428: Nested if else rendering', function() {
@@ -131,259 +121,242 @@ describe('Regressions', function() {
       }
     };
 
-    shouldCompileTo(succeedingTemplate, [{}, helpers], '   Expected  ');
-    shouldCompileTo(failingTemplate, [{}, helpers], '  Expected  ');
+    expectTemplate(succeedingTemplate)
+      .withHelpers(helpers)
+      .toCompileTo('   Expected  ');
+
+    expectTemplate(failingTemplate)
+      .withHelpers(helpers)
+      .toCompileTo('  Expected  ');
   });
 
   it('GH-458: Scoped this identifier', function() {
-    shouldCompileTo('{{./foo}}', { foo: 'bar' }, 'bar');
+    expectTemplate('{{./foo}}')
+      .withInput({ foo: 'bar' })
+      .toCompileTo('bar');
   });
 
   it('GH-375: Unicode line terminators', function() {
-    shouldCompileTo('\u2028', {}, '\u2028');
+    expectTemplate('\u2028').toCompileTo('\u2028');
   });
 
   it('GH-534: Object prototype aliases', function() {
     /* eslint-disable no-extend-native */
     Object.prototype[0xd834] = true;
 
-    shouldCompileTo('{{foo}}', { foo: 'bar' }, 'bar');
+    expectTemplate('{{foo}}')
+      .withInput({ foo: 'bar' })
+      .toCompileTo('bar');
 
     delete Object.prototype[0xd834];
     /* eslint-enable no-extend-native */
   });
 
   it('GH-437: Matching escaping', function() {
-    shouldThrow(function() {
-      CompilerContext.compile('{{{a}}');
-    }, Error);
-    shouldThrow(function() {
-      CompilerContext.compile('{{a}}}');
-    }, Error);
+    expectTemplate('{{{a}}').toThrow(Error, /Parse error on/);
+    expectTemplate('{{a}}}').toThrow(Error, /Parse error on/);
   });
 
   it('GH-676: Using array in escaping mustache fails', function() {
-    var string = '{{arr}}';
     var data = { arr: [1, 2] };
 
-    shouldCompileTo(string, data, data.arr.toString(), 'it works as expected');
+    expectTemplate('{{arr}}')
+      .withInput(data)
+      .withMessage('it works as expected')
+      .toCompileTo(data.arr.toString());
   });
 
   it('Mustache man page', function() {
-    var string =
-      'Hello {{name}}. You have just won ${{value}}!{{#in_ca}} Well, ${{taxed_value}}, after taxes.{{/in_ca}}';
-    var data = {
-      name: 'Chris',
-      value: 10000,
-      taxed_value: 10000 - 10000 * 0.4,
-      in_ca: true
-    };
-
-    shouldCompileTo(
-      string,
-      data,
-      'Hello Chris. You have just won $10000! Well, $6000, after taxes.',
-      'the hello world mustache example works'
-    );
+    expectTemplate(
+      'Hello {{name}}. You have just won ${{value}}!{{#in_ca}} Well, ${{taxed_value}}, after taxes.{{/in_ca}}'
+    )
+      .withInput({
+        name: 'Chris',
+        value: 10000,
+        taxed_value: 10000 - 10000 * 0.4,
+        in_ca: true
+      })
+      .withMessage('the hello world mustache example works')
+      .toCompileTo(
+        'Hello Chris. You have just won $10000! Well, $6000, after taxes.'
+      );
   });
 
   it('GH-731: zero context rendering', function() {
-    shouldCompileTo(
-      '{{#foo}} This is {{bar}} ~ {{/foo}}',
-      { foo: 0, bar: 'OK' },
-      ' This is  ~ '
-    );
+    expectTemplate('{{#foo}} This is {{bar}} ~ {{/foo}}')
+      .withInput({
+        foo: 0,
+        bar: 'OK'
+      })
+      .toCompileTo(' This is  ~ ');
   });
 
   it('GH-820: zero pathed rendering', function() {
-    shouldCompileTo('{{foo.bar}}', { foo: 0 }, '');
+    expectTemplate('{{foo.bar}}')
+      .withInput({ foo: 0 })
+      .toCompileTo('');
   });
 
   it('GH-837: undefined values for helpers', function() {
-    var helpers = {
-      str: function(value) {
-        return value + '';
-      }
-    };
-
-    shouldCompileTo('{{str bar.baz}}', [{}, helpers], 'undefined');
+    expectTemplate('{{str bar.baz}}')
+      .withHelpers({
+        str: function(value) {
+          return value + '';
+        }
+      })
+      .toCompileTo('undefined');
   });
 
   it('GH-926: Depths and de-dupe', function() {
-    var context = {
-      name: 'foo',
-      data: [1],
-      notData: [1]
-    };
-
-    var template = CompilerContext.compile(
+    expectTemplate(
       '{{#if dater}}{{#each data}}{{../name}}{{/each}}{{else}}{{#each notData}}{{../name}}{{/each}}{{/if}}'
-    );
-
-    var result = template(context);
-    equals(result, 'foo');
+    )
+      .withInput({
+        name: 'foo',
+        data: [1],
+        notData: [1]
+      })
+      .toCompileTo('foo');
   });
 
   it('GH-1021: Each empty string key', function() {
-    var data = {
-      '': 'foo',
-      name: 'Chris',
-      value: 10000
-    };
-
-    shouldCompileTo(
-      '{{#each data}}Key: {{@key}}\n{{/each}}',
-      { data: data },
-      'Key: \nKey: name\nKey: value\n'
-    );
+    expectTemplate('{{#each data}}Key: {{@key}}\n{{/each}}')
+      .withInput({
+        data: {
+          '': 'foo',
+          name: 'Chris',
+          value: 10000
+        }
+      })
+      .toCompileTo('Key: \nKey: name\nKey: value\n');
   });
 
   it('GH-1054: Should handle simple safe string responses', function() {
-    var root = '{{#wrap}}{{>partial}}{{/wrap}}';
-    var partials = {
-      partial: '{{#wrap}}<partial>{{/wrap}}'
-    };
-    var helpers = {
-      wrap: function(options) {
-        return new Handlebars.SafeString(options.fn());
-      }
-    };
-
-    shouldCompileToWithPartials(
-      root,
-      [{}, helpers, partials],
-      true,
-      '<partial>'
-    );
+    expectTemplate('{{#wrap}}{{>partial}}{{/wrap}}')
+      .withHelpers({
+        wrap: function(options) {
+          return new Handlebars.SafeString(options.fn());
+        }
+      })
+      .withPartials({
+        partial: '{{#wrap}}<partial>{{/wrap}}'
+      })
+      .toCompileTo('<partial>');
   });
 
   it('GH-1065: Sparse arrays', function() {
     var array = [];
     array[1] = 'foo';
     array[3] = 'bar';
-    shouldCompileTo(
-      '{{#each array}}{{@index}}{{.}}{{/each}}',
-      { array: array },
-      '1foo3bar'
-    );
+    expectTemplate('{{#each array}}{{@index}}{{.}}{{/each}}')
+      .withInput({ array: array })
+      .toCompileTo('1foo3bar');
   });
 
   it('GH-1093: Undefined helper context', function() {
-    var obj = { foo: undefined, bar: 'bat' };
-    var helpers = {
-      helper: function() {
-        // It's valid to execute a block against an undefined context, but
-        // helpers can not do so, so we expect to have an empty object here;
-        for (var name in this) {
-          if (Object.prototype.hasOwnProperty.call(this, name)) {
-            return 'found';
+    expectTemplate('{{#each obj}}{{{helper}}}{{.}}{{/each}}')
+      .withInput({ obj: { foo: undefined, bar: 'bat' } })
+      .withHelpers({
+        helper: function() {
+          // It's valid to execute a block against an undefined context, but
+          // helpers can not do so, so we expect to have an empty object here;
+          for (var name in this) {
+            if (Object.prototype.hasOwnProperty.call(this, name)) {
+              return 'found';
+            }
           }
+          // And to make IE happy, check for the known string as length is not enumerated.
+          return this === 'bat' ? 'found' : 'not';
         }
-        // And to make IE happy, check for the known string as length is not enumerated.
-        return this === 'bat' ? 'found' : 'not';
-      }
-    };
-
-    shouldCompileTo(
-      '{{#each obj}}{{{helper}}}{{.}}{{/each}}',
-      [{ obj: obj }, helpers],
-      'notfoundbat'
-    );
+      })
+      .toCompileTo('notfoundbat');
   });
 
   it('should support multiple levels of inline partials', function() {
-    var string =
-      '{{#> layout}}{{#*inline "subcontent"}}subcontent{{/inline}}{{/layout}}';
-    var partials = {
-      doctype: 'doctype{{> content}}',
-      layout:
-        '{{#> doctype}}{{#*inline "content"}}layout{{> subcontent}}{{/inline}}{{/doctype}}'
-    };
-    shouldCompileToWithPartials(
-      string,
-      [{}, {}, partials],
-      true,
-      'doctypelayoutsubcontent'
-    );
+    expectTemplate(
+      '{{#> layout}}{{#*inline "subcontent"}}subcontent{{/inline}}{{/layout}}'
+    )
+      .withPartials({
+        doctype: 'doctype{{> content}}',
+        layout:
+          '{{#> doctype}}{{#*inline "content"}}layout{{> subcontent}}{{/inline}}{{/doctype}}'
+      })
+      .toCompileTo('doctypelayoutsubcontent');
   });
+
   it('GH-1089: should support failover content in multiple levels of inline partials', function() {
-    var string = '{{#> layout}}{{/layout}}';
-    var partials = {
-      doctype: 'doctype{{> content}}',
-      layout:
-        '{{#> doctype}}{{#*inline "content"}}layout{{#> subcontent}}subcontent{{/subcontent}}{{/inline}}{{/doctype}}'
-    };
-    shouldCompileToWithPartials(
-      string,
-      [{}, {}, partials],
-      true,
-      'doctypelayoutsubcontent'
-    );
+    expectTemplate('{{#> layout}}{{/layout}}')
+      .withPartials({
+        doctype: 'doctype{{> content}}',
+        layout:
+          '{{#> doctype}}{{#*inline "content"}}layout{{#> subcontent}}subcontent{{/subcontent}}{{/inline}}{{/doctype}}'
+      })
+      .toCompileTo('doctypelayoutsubcontent');
   });
+
   it('GH-1099: should support greater than 3 nested levels of inline partials', function() {
-    var string = '{{#> layout}}Outer{{/layout}}';
-    var partials = {
-      layout: '{{#> inner}}Inner{{/inner}}{{> @partial-block }}',
-      inner: ''
-    };
-    shouldCompileToWithPartials(string, [{}, {}, partials], true, 'Outer');
+    expectTemplate('{{#> layout}}Outer{{/layout}}')
+      .withPartials({
+        layout: '{{#> inner}}Inner{{/inner}}{{> @partial-block }}',
+        inner: ''
+      })
+      .toCompileTo('Outer');
   });
 
   it('GH-1135 : Context handling within each iteration', function() {
-    var obj = { array: [1], name: 'John' };
-    var helpers = {
-      myif: function(conditional, options) {
-        if (conditional) {
-          return options.fn(this);
-        } else {
-          return options.inverse(this);
-        }
-      }
-    };
-
-    shouldCompileTo(
+    expectTemplate(
       '{{#each array}}\n' +
         ' 1. IF: {{#if true}}{{../name}}-{{../../name}}-{{../../../name}}{{/if}}\n' +
         ' 2. MYIF: {{#myif true}}{{../name}}={{../../name}}={{../../../name}}{{/myif}}\n' +
-        '{{/each}}',
-      [obj, helpers],
-      ' 1. IF: John--\n' + ' 2. MYIF: John==\n'
-    );
+        '{{/each}}'
+    )
+      .withInput({ array: [1], name: 'John' })
+      .withHelpers({
+        myif: function(conditional, options) {
+          if (conditional) {
+            return options.fn(this);
+          } else {
+            return options.inverse(this);
+          }
+        }
+      })
+      .toCompileTo(' 1. IF: John--\n' + ' 2. MYIF: John==\n');
   });
 
   it('GH-1186: Support block params for existing programs', function() {
-    var string =
+    expectTemplate(
       '{{#*inline "test"}}{{> @partial-block }}{{/inline}}' +
-      '{{#>test }}{{#each listOne as |item|}}{{ item }}{{/each}}{{/test}}' +
-      '{{#>test }}{{#each listTwo as |item|}}{{ item }}{{/each}}{{/test}}';
-
-    shouldCompileTo(string, { listOne: ['a'], listTwo: ['b'] }, 'ab', '');
+        '{{#>test }}{{#each listOne as |item|}}{{ item }}{{/each}}{{/test}}' +
+        '{{#>test }}{{#each listTwo as |item|}}{{ item }}{{/each}}{{/test}}'
+    )
+      .withInput({
+        listOne: ['a'],
+        listTwo: ['b']
+      })
+      .withMessage('')
+      .toCompileTo('ab');
   });
 
   it('GH-1319: "unless" breaks when "each" value equals "null"', function() {
-    var string =
-      '{{#each list}}{{#unless ./prop}}parent={{../value}} {{/unless}}{{/each}}';
-    shouldCompileTo(
-      string,
-      { value: 'parent', list: [null, 'a'] },
-      'parent=parent parent=parent ',
-      ''
-    );
+    expectTemplate(
+      '{{#each list}}{{#unless ./prop}}parent={{../value}} {{/unless}}{{/each}}'
+    )
+      .withInput({
+        value: 'parent',
+        list: [null, 'a']
+      })
+      .withMessage('')
+      .toCompileTo('parent=parent parent=parent ');
   });
 
   it('GH-1341: 4.0.7 release breaks {{#if @partial-block}} usage', function() {
-    var string = 'template {{>partial}} template';
-    var partials = {
-      partialWithBlock:
-        '{{#if @partial-block}} block {{> @partial-block}} block {{/if}}',
-      partial: '{{#> partialWithBlock}} partial {{/partialWithBlock}}'
-    };
-    shouldCompileToWithPartials(
-      string,
-      [{}, {}, partials],
-      true,
-      'template  block  partial  block  template'
-    );
+    expectTemplate('template {{>partial}} template')
+      .withPartials({
+        partialWithBlock:
+          '{{#if @partial-block}} block {{> @partial-block}} block {{/if}}',
+        partial: '{{#> partialWithBlock}} partial {{/partialWithBlock}}'
+      })
+      .toCompileTo('template  block  partial  block  template');
   });
 
   describe('GH-1561: 4.3.x should still work with precompiled templates from 4.0.0 <= x < 4.3.0', function() {
@@ -482,14 +455,14 @@ describe('Regressions', function() {
   });
 
   it('should allow hash with protected array names', function() {
-    var obj = { array: [1], name: 'John' };
-    var helpers = {
-      helpa: function(options) {
-        return options.hash.length;
-      }
-    };
-
-    shouldCompileTo('{{helpa length="foo"}}', [obj, helpers], 'foo');
+    expectTemplate('{{helpa length="foo"}}')
+      .withInput({ array: [1], name: 'John' })
+      .withHelpers({
+        helpa: function(options) {
+          return options.hash.length;
+        }
+      })
+      .toCompileTo('foo');
   });
 
   describe('GH-1598: Performance degradation for partials since v4.3.0', function() {
diff --git a/spec/security.js b/spec/security.js
index 1b345f0cc..25aabeb7b 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -20,36 +20,19 @@ describe('security issues', function() {
     });
 
     it('should allow the "constructor" property to be accessed if it is an "ownProperty"', function() {
-      shouldCompileTo(
-        '{{constructor.name}}',
-        {
-          constructor: {
-            name: 'here we go'
-          }
-        },
-        'here we go'
-      );
-      shouldCompileTo(
-        '{{lookup (lookup this "constructor") "name"}}',
-        {
-          constructor: {
-            name: 'here we go'
-          }
-        },
-        'here we go'
-      );
+      expectTemplate('{{constructor.name}}')
+        .withInput({ constructor: { name: 'here we go' } })
+        .toCompileTo('here we go');
+
+      expectTemplate('{{lookup (lookup this "constructor") "name"}}')
+        .withInput({ constructor: { name: 'here we go' } })
+        .toCompileTo('here we go');
     });
 
     it('should allow the "constructor" property to be accessed if it is an "own property"', function() {
-      shouldCompileTo(
-        '{{lookup (lookup this "constructor") "name"}}',
-        {
-          constructor: {
-            name: 'here we go'
-          }
-        },
-        'here we go'
-      );
+      expectTemplate('{{lookup (lookup this "constructor") "name"}}')
+        .withInput({ constructor: { name: 'here we go' } })
+        .toCompileTo('here we go');
     });
   });
 
@@ -60,19 +43,13 @@ describe('security issues', function() {
 
     describe('without the option "allowExplicitCallOfHelperMissing"', function() {
       it('should throw an exception when calling  "{{helperMissing}}" ', function() {
-        shouldThrow(function() {
-          var template = Handlebars.compile('{{helperMissing}}');
-          template({});
-        }, Error);
+        expectTemplate('{{helperMissing}}').toThrow(Error);
       });
+
       it('should throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
-        shouldThrow(function() {
-          var template = Handlebars.compile(
-            '{{#helperMissing}}{{/helperMissing}}'
-          );
-          template({});
-        }, Error);
+        expectTemplate('{{#helperMissing}}{{/helperMissing}}').toThrow(Error);
       });
+
       it('should throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
         var functionCalls = [];
         expect(function() {
@@ -85,17 +62,15 @@ describe('security issues', function() {
         }).to.throw(Error);
         expect(functionCalls.length).to.equal(0);
       });
+
       it('should throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
-        shouldThrow(function() {
-          var template = Handlebars.compile(
-            '{{#blockHelperMissing .}}{{/blockHelperMissing}}'
-          );
-          template({
+        expectTemplate('{{#blockHelperMissing .}}{{/blockHelperMissing}}')
+          .withInput({
             fn: function() {
               return 'functionInData';
             }
-          });
-        }, Error);
+          })
+          .toThrow(Error);
       });
     });
 
@@ -104,12 +79,14 @@ describe('security issues', function() {
         var template = Handlebars.compile('{{helperMissing}}');
         template({}, { allowCallsToHelperMissing: true });
       });
+
       it('should not throw an exception when calling  "{{#helperMissing}}{{/helperMissing}}" ', function() {
         var template = Handlebars.compile(
           '{{#helperMissing}}{{/helperMissing}}'
         );
         template({}, { allowCallsToHelperMissing: true });
       });
+
       it('should not throw an exception when calling  "{{blockHelperMissing "abc" .}}" ', function() {
         var functionCalls = [];
         var template = Handlebars.compile('{{blockHelperMissing "abc" .}}');
@@ -123,6 +100,7 @@ describe('security issues', function() {
         );
         equals(functionCalls.length, 1);
       });
+
       it('should not throw an exception when calling  "{{#blockHelperMissing .}}{{/blockHelperMissing}}"', function() {
         var template = Handlebars.compile(
           '{{#blockHelperMissing true}}sdads{{/blockHelperMissing}}'
diff --git a/spec/spec.js b/spec/spec.js
index ff4d7bc98..8b4ea99fe 100644
--- a/spec/spec.js
+++ b/spec/spec.js
@@ -40,22 +40,12 @@ describe('spec', function() {
         /* eslint-enable no-eval */
       }
       it(name + ' - ' + test.name, function() {
-        if (test.partials) {
-          shouldCompileToWithPartials(
-            test.template,
-            [data, {}, test.partials, true],
-            true,
-            test.expected,
-            test.desc + ' "' + test.template + '"'
-          );
-        } else {
-          shouldCompileTo(
-            test.template,
-            [data, {}, {}, true],
-            test.expected,
-            test.desc + ' "' + test.template + '"'
-          );
-        }
+        expectTemplate(test.template)
+          .withInput(data)
+          .withPartials(test.partials || {})
+          .withCompileOptions({ compat: true })
+          .withMessage(test.desc + ' "' + test.template + '"')
+          .toCompileTo(test.expected);
       });
     });
   });
diff --git a/spec/strict.js b/spec/strict.js
index 680bbc0d8..8e48fab5e 100644
--- a/spec/strict.js
+++ b/spec/strict.js
@@ -3,161 +3,107 @@ var Exception = Handlebars.Exception;
 describe('strict', function() {
   describe('strict mode', function() {
     it('should error on missing property lookup', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{hello}}', { strict: true });
-
-          template({});
-        },
-        Exception,
-        /"hello" not defined in/
-      );
+      expectTemplate('{{hello}}')
+        .withCompileOptions({ strict: true })
+        .toThrow(Exception, /"hello" not defined in/);
     });
+
     it('should error on missing child', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', { strict: true });
-      equals(template({ hello: { bar: 'foo' } }), 'foo');
+      expectTemplate('{{hello.bar}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ hello: { bar: 'foo' } })
+        .toCompileTo('foo');
 
-      shouldThrow(
-        function() {
-          template({ hello: {} });
-        },
-        Exception,
-        /"bar" not defined in/
-      );
+      expectTemplate('{{hello.bar}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ hello: {} })
+        .toThrow(Exception, /"bar" not defined in/);
     });
-    it('should handle explicit undefined', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', { strict: true });
 
-      equals(template({ hello: { bar: undefined } }), '');
+    it('should handle explicit undefined', function() {
+      expectTemplate('{{hello.bar}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ hello: { bar: undefined } })
+        .toCompileTo('');
     });
+
     it('should error on missing property lookup in known helpers mode', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{hello}}', {
-            strict: true,
-            knownHelpersOnly: true
-          });
-
-          template({});
-        },
-        Exception,
-        /"hello" not defined in/
-      );
+      expectTemplate('{{hello}}')
+        .withCompileOptions({
+          strict: true,
+          knownHelpersOnly: true
+        })
+        .toThrow(Exception, /"hello" not defined in/);
     });
-    it('should error on missing context', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', { strict: true });
 
-        template();
-      }, Error);
+    it('should error on missing context', function() {
+      expectTemplate('{{hello}}')
+        .withCompileOptions({ strict: true })
+        .toThrow(Error);
     });
 
     it('should error on missing data lookup', function() {
-      var template = CompilerContext.compile('{{@hello}}', { strict: true });
-      equals(template(undefined, { data: { hello: 'foo' } }), 'foo');
+      var xt = expectTemplate('{{@hello}}').withCompileOptions({
+        strict: true
+      });
 
-      shouldThrow(function() {
-        template();
-      }, Error);
+      xt.toThrow(Error);
+
+      xt.withRuntimeOptions({ data: { hello: 'foo' } }).toCompileTo('foo');
     });
 
     it('should not run helperMissing for helper calls', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{hello foo}}', {
-            strict: true
-          });
-
-          template({ foo: true });
-        },
-        Exception,
-        /"hello" not defined in/
-      );
-
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{#hello foo}}{{/hello}}', {
-            strict: true
-          });
-
-          template({ foo: true });
-        },
-        Exception,
-        /"hello" not defined in/
-      );
+      expectTemplate('{{hello foo}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ foo: true })
+        .toThrow(Exception, /"hello" not defined in/);
+
+      expectTemplate('{{#hello foo}}{{/hello}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ foo: true })
+        .toThrow(Exception, /"hello" not defined in/);
     });
+
     it('should throw on ambiguous blocks', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{#hello}}{{/hello}}', {
-            strict: true
-          });
-
-          template({});
-        },
-        Exception,
-        /"hello" not defined in/
-      );
-
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('{{^hello}}{{/hello}}', {
-            strict: true
-          });
-
-          template({});
-        },
-        Exception,
-        /"hello" not defined in/
-      );
-
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile(
-            '{{#hello.bar}}{{/hello.bar}}',
-            { strict: true }
-          );
-
-          template({ hello: {} });
-        },
-        Exception,
-        /"bar" not defined in/
-      );
+      expectTemplate('{{#hello}}{{/hello}}')
+        .withCompileOptions({ strict: true })
+        .toThrow(Exception, /"hello" not defined in/);
+
+      expectTemplate('{{^hello}}{{/hello}}')
+        .withCompileOptions({ strict: true })
+        .toThrow(Exception, /"hello" not defined in/);
+
+      expectTemplate('{{#hello.bar}}{{/hello.bar}}')
+        .withCompileOptions({ strict: true })
+        .withInput({ hello: {} })
+        .toThrow(Exception, /"bar" not defined in/);
     });
 
     it('should allow undefined parameters when passed to helpers', function() {
-      var template = CompilerContext.compile(
-        '{{#unless foo}}success{{/unless}}',
-        { strict: true }
-      );
-      equals(template({}), 'success');
+      expectTemplate('{{#unless foo}}success{{/unless}}')
+        .withCompileOptions({ strict: true })
+        .toCompileTo('success');
     });
 
     it('should allow undefined hash when passed to helpers', function() {
-      var template = CompilerContext.compile('{{helper value=@foo}}', {
-        strict: true
-      });
-      var helpers = {
-        helper: function(options) {
-          equals('value' in options.hash, true);
-          equals(options.hash.value, undefined);
-          return 'success';
-        }
-      };
-      equals(template({}, { helpers: helpers }), 'success');
+      expectTemplate('{{helper value=@foo}}')
+        .withCompileOptions({
+          strict: true
+        })
+        .withHelpers({
+          helper: function(options) {
+            equals('value' in options.hash, true);
+            equals(options.hash.value, undefined);
+            return 'success';
+          }
+        })
+        .toCompileTo('success');
     });
 
     it('should show error location on missing property lookup', function() {
-      shouldThrow(
-        function() {
-          var template = CompilerContext.compile('\n\n\n   {{hello}}', {
-            strict: true
-          });
-          template({});
-        },
-        Exception,
-        '"hello" not defined in [object Object] - 4:5'
-      );
+      expectTemplate('\n\n\n   {{hello}}')
+        .withCompileOptions({ strict: true })
+        .toThrow(Exception, '"hello" not defined in [object Object] - 4:5');
     });
 
     it('should error contains correct location properties on missing property lookup', function() {
@@ -177,54 +123,42 @@ describe('strict', function() {
 
   describe('assume objects', function() {
     it('should ignore missing property', function() {
-      var template = CompilerContext.compile('{{hello}}', {
-        assumeObjects: true
-      });
-
-      equal(template({}), '');
+      expectTemplate('{{hello}}')
+        .withCompileOptions({ assumeObjects: true })
+        .toCompileTo('');
     });
-    it('should ignore missing child', function() {
-      var template = CompilerContext.compile('{{hello.bar}}', {
-        assumeObjects: true
-      });
 
-      equal(template({ hello: {} }), '');
+    it('should ignore missing child', function() {
+      expectTemplate('{{hello.bar}}')
+        .withCompileOptions({ assumeObjects: true })
+        .withInput({ hello: {} })
+        .toCompileTo('');
     });
-    it('should error on missing object', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello.bar}}', {
-          assumeObjects: true
-        });
 
-        template({});
-      }, Error);
+    it('should error on missing object', function() {
+      expectTemplate('{{hello.bar}}')
+        .withCompileOptions({ assumeObjects: true })
+        .toThrow(Error);
     });
-    it('should error on missing context', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{hello}}', {
-          assumeObjects: true
-        });
 
-        template();
-      }, Error);
+    it('should error on missing context', function() {
+      expectTemplate('{{hello}}')
+        .withCompileOptions({ assumeObjects: true })
+        .withInput(undefined)
+        .toThrow(Error);
     });
 
     it('should error on missing data lookup', function() {
-      shouldThrow(function() {
-        var template = CompilerContext.compile('{{@hello.bar}}', {
-          assumeObjects: true
-        });
-
-        template();
-      }, Error);
+      expectTemplate('{{@hello.bar}}')
+        .withCompileOptions({ assumeObjects: true })
+        .withInput(undefined)
+        .toThrow(Error);
     });
 
     it('should execute blockHelperMissing', function() {
-      var template = CompilerContext.compile('{{^hello}}foo{{/hello}}', {
-        assumeObjects: true
-      });
-
-      equals(template({}), 'foo');
+      expectTemplate('{{^hello}}foo{{/hello}}')
+        .withCompileOptions({ assumeObjects: true })
+        .toCompileTo('foo');
     });
   });
 });
diff --git a/spec/string-params.js b/spec/string-params.js
index 9f83611a4..c4b9a27b7 100644
--- a/spec/string-params.js
+++ b/spec/string-params.js
@@ -1,151 +1,117 @@
 describe('string params mode', function() {
   it('arguments to helpers can be retrieved from options hash in string form', function() {
-    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {
-      stringParams: true
-    });
-
-    var helpers = {
-      wycats: function(passiveVoice, noun) {
-        return 'HELP ME MY BOSS ' + passiveVoice + ' ' + noun;
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-
-    equals(
-      result,
-      'HELP ME MY BOSS is.a slave.driver',
-      'String parameters output'
-    );
+    expectTemplate('{{wycats is.a slave.driver}}')
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        wycats: function(passiveVoice, noun) {
+          return 'HELP ME MY BOSS ' + passiveVoice + ' ' + noun;
+        }
+      })
+      .withMessage('String parameters output')
+      .toCompileTo('HELP ME MY BOSS is.a slave.driver');
   });
 
   it('when using block form, arguments to helpers can be retrieved from options hash in string form', function() {
-    var template = CompilerContext.compile(
-      '{{#wycats is.a slave.driver}}help :({{/wycats}}',
-      { stringParams: true }
-    );
-
-    var helpers = {
-      wycats: function(passiveVoice, noun, options) {
-        return (
-          'HELP ME MY BOSS ' +
-          passiveVoice +
-          ' ' +
-          noun +
-          ': ' +
-          options.fn(this)
-        );
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-
-    equals(
-      result,
-      'HELP ME MY BOSS is.a slave.driver: help :(',
-      'String parameters output'
-    );
+    expectTemplate('{{#wycats is.a slave.driver}}help :({{/wycats}}')
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        wycats: function(passiveVoice, noun, options) {
+          return (
+            'HELP ME MY BOSS ' +
+            passiveVoice +
+            ' ' +
+            noun +
+            ': ' +
+            options.fn(this)
+          );
+        }
+      })
+      .withMessage('String parameters output')
+      .toCompileTo('HELP ME MY BOSS is.a slave.driver: help :(');
   });
 
   it('when inside a block in String mode, .. passes the appropriate context in the options hash', function() {
-    var template = CompilerContext.compile(
-      '{{#with dale}}{{tomdale ../need dad.joke}}{{/with}}',
-      { stringParams: true }
-    );
-
-    var helpers = {
-      tomdale: function(desire, noun, options) {
-        return (
-          'STOP ME FROM READING HACKER NEWS I ' +
-          options.contexts[0][desire] +
-          ' ' +
-          noun
-        );
-      },
-
-      with: function(context, options) {
-        return options.fn(options.contexts[0][context]);
-      }
-    };
-
-    var result = template(
-      {
+    expectTemplate('{{#with dale}}{{tomdale ../need dad.joke}}{{/with}}')
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        tomdale: function(desire, noun, options) {
+          return (
+            'STOP ME FROM READING HACKER NEWS I ' +
+            options.contexts[0][desire] +
+            ' ' +
+            noun
+          );
+        },
+        with: function(context, options) {
+          return options.fn(options.contexts[0][context]);
+        }
+      })
+      .withInput({
         dale: {},
 
         need: 'need-a'
-      },
-      { helpers: helpers }
-    );
-
-    equals(
-      result,
-      'STOP ME FROM READING HACKER NEWS I need-a dad.joke',
-      'Proper context variable output'
-    );
+      })
+      .withMessage('Proper context variable output')
+      .toCompileTo('STOP ME FROM READING HACKER NEWS I need-a dad.joke');
   });
 
   it('information about the types is passed along', function() {
-    var template = CompilerContext.compile(
-      "{{tomdale 'need' dad.joke true false}}",
-      { stringParams: true }
-    );
-
-    var helpers = {
-      tomdale: function(desire, noun, trueBool, falseBool, options) {
-        equal(options.types[0], 'StringLiteral', 'the string type is passed');
-        equal(
-          options.types[1],
-          'PathExpression',
-          'the expression type is passed'
-        );
-        equal(
-          options.types[2],
-          'BooleanLiteral',
-          'the expression type is passed'
-        );
-        equal(desire, 'need', 'the string form is passed for strings');
-        equal(noun, 'dad.joke', 'the string form is passed for expressions');
-        equal(trueBool, true, 'raw booleans are passed through');
-        equal(falseBool, false, 'raw booleans are passed through');
-        return 'Helper called';
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-    equal(result, 'Helper called');
+    expectTemplate("{{tomdale 'need' dad.joke true false}}")
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        tomdale: function(desire, noun, trueBool, falseBool, options) {
+          equal(options.types[0], 'StringLiteral', 'the string type is passed');
+          equal(
+            options.types[1],
+            'PathExpression',
+            'the expression type is passed'
+          );
+          equal(
+            options.types[2],
+            'BooleanLiteral',
+            'the expression type is passed'
+          );
+          equal(desire, 'need', 'the string form is passed for strings');
+          equal(noun, 'dad.joke', 'the string form is passed for expressions');
+          equal(trueBool, true, 'raw booleans are passed through');
+          equal(falseBool, false, 'raw booleans are passed through');
+          return 'Helper called';
+        }
+      })
+      .toCompileTo('Helper called');
   });
 
   it('hash parameters get type information', function() {
-    var template = CompilerContext.compile(
-      "{{tomdale he.says desire='need' noun=dad.joke bool=true}}",
-      { stringParams: true }
-    );
-
-    var helpers = {
-      tomdale: function(exclamation, options) {
-        equal(exclamation, 'he.says');
-        equal(options.types[0], 'PathExpression');
-
-        equal(options.hashTypes.desire, 'StringLiteral');
-        equal(options.hashTypes.noun, 'PathExpression');
-        equal(options.hashTypes.bool, 'BooleanLiteral');
-        equal(options.hash.desire, 'need');
-        equal(options.hash.noun, 'dad.joke');
-        equal(options.hash.bool, true);
-        return 'Helper called';
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-    equal(result, 'Helper called');
+    expectTemplate("{{tomdale he.says desire='need' noun=dad.joke bool=true}}")
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        tomdale: function(exclamation, options) {
+          equal(exclamation, 'he.says');
+          equal(options.types[0], 'PathExpression');
+
+          equal(options.hashTypes.desire, 'StringLiteral');
+          equal(options.hashTypes.noun, 'PathExpression');
+          equal(options.hashTypes.bool, 'BooleanLiteral');
+          equal(options.hash.desire, 'need');
+          equal(options.hash.noun, 'dad.joke');
+          equal(options.hash.bool, true);
+          return 'Helper called';
+        }
+      })
+      .toCompileTo('Helper called');
   });
 
   it('hash parameters get context information', function() {
-    var template = CompilerContext.compile(
-      "{{#with dale}}{{tomdale he.says desire='need' noun=../dad/joke bool=true}}{{/with}}",
-      { stringParams: true }
-    );
-
     var context = { dale: {} };
 
     var helpers = {
@@ -165,82 +131,77 @@ describe('string params mode', function() {
       }
     };
 
-    var result = template(context, { helpers: helpers });
-    equal(result, 'Helper called');
+    expectTemplate(
+      "{{#with dale}}{{tomdale he.says desire='need' noun=../dad/joke bool=true}}{{/with}}"
+    )
+      .withCompileOptions({ stringParams: true })
+      .withHelpers(helpers)
+      .withInput(context)
+      .toCompileTo('Helper called');
   });
 
   it('when inside a block in String mode, .. passes the appropriate context in the options hash to a block helper', function() {
-    var template = CompilerContext.compile(
-      '{{#with dale}}{{#tomdale ../need dad.joke}}wot{{/tomdale}}{{/with}}',
-      { stringParams: true }
-    );
-
-    var helpers = {
-      tomdale: function(desire, noun, options) {
-        return (
-          'STOP ME FROM READING HACKER NEWS I ' +
-          options.contexts[0][desire] +
-          ' ' +
-          noun +
-          ' ' +
-          options.fn(this)
-        );
-      },
-
-      with: function(context, options) {
-        return options.fn(options.contexts[0][context]);
-      }
-    };
-
-    var result = template(
-      {
+    expectTemplate(
+      '{{#with dale}}{{#tomdale ../need dad.joke}}wot{{/tomdale}}{{/with}}'
+    )
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        tomdale: function(desire, noun, options) {
+          return (
+            'STOP ME FROM READING HACKER NEWS I ' +
+            options.contexts[0][desire] +
+            ' ' +
+            noun +
+            ' ' +
+            options.fn(this)
+          );
+        },
+
+        with: function(context, options) {
+          return options.fn(options.contexts[0][context]);
+        }
+      })
+      .withInput({
         dale: {},
 
         need: 'need-a'
-      },
-      { helpers: helpers }
-    );
-
-    equals(
-      result,
-      'STOP ME FROM READING HACKER NEWS I need-a dad.joke wot',
-      'Proper context variable output'
-    );
+      })
+      .withMessage('Proper context variable output')
+      .toCompileTo('STOP ME FROM READING HACKER NEWS I need-a dad.joke wot');
   });
 
   it('with nested block ambiguous', function() {
-    var template = CompilerContext.compile(
-      '{{#with content}}{{#view}}{{firstName}} {{lastName}}{{/view}}{{/with}}',
-      { stringParams: true }
-    );
-
-    var helpers = {
-      with: function() {
-        return 'WITH';
-      },
-      view: function() {
-        return 'VIEW';
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-    equals(result, 'WITH');
+    expectTemplate(
+      '{{#with content}}{{#view}}{{firstName}} {{lastName}}{{/view}}{{/with}}'
+    )
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        with: function() {
+          return 'WITH';
+        },
+        view: function() {
+          return 'VIEW';
+        }
+      })
+      .toCompileTo('WITH');
   });
 
   it('should handle DATA', function() {
-    var template = CompilerContext.compile('{{foo @bar}}', {
-      stringParams: true
-    });
-
-    var helpers = {
-      foo: function(bar, options) {
-        equal(bar, '@bar');
-        equal(options.types[0], 'PathExpression');
-        return 'Foo!';
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-    equal(result, 'Foo!');
+    expectTemplate('{{foo @bar}}')
+      .withCompileOptions({
+        stringParams: true
+      })
+      .withHelpers({
+        foo: function(bar, options) {
+          equal(bar, '@bar');
+          equal(options.types[0], 'PathExpression');
+          return 'Foo!';
+        }
+      })
+      .toCompileTo('Foo!');
   });
 });
diff --git a/spec/subexpressions.js b/spec/subexpressions.js
index 228510511..21b93aab9 100644
--- a/spec/subexpressions.js
+++ b/spec/subexpressions.js
@@ -1,61 +1,57 @@
 describe('subexpressions', function() {
   it('arg-less helper', function() {
-    var string = '{{foo (bar)}}!';
-    var context = {};
-    var helpers = {
-      foo: function(val) {
-        return val + val;
-      },
-      bar: function() {
-        return 'LOL';
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'LOLLOL!');
+    expectTemplate('{{foo (bar)}}!')
+      .withHelpers({
+        foo: function(val) {
+          return val + val;
+        },
+        bar: function() {
+          return 'LOL';
+        }
+      })
+      .toCompileTo('LOLLOL!');
   });
 
   it('helper w args', function() {
-    var string = '{{blog (equal a b)}}';
-
-    var context = { bar: 'LOL' };
-    var helpers = {
-      blog: function(val) {
-        return 'val is ' + val;
-      },
-      equal: function(x, y) {
-        return x === y;
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'val is true');
+    expectTemplate('{{blog (equal a b)}}')
+      .withInput({ bar: 'LOL' })
+      .withHelpers({
+        blog: function(val) {
+          return 'val is ' + val;
+        },
+        equal: function(x, y) {
+          return x === y;
+        }
+      })
+      .toCompileTo('val is true');
   });
 
   it('mixed paths and helpers', function() {
-    var string = '{{blog baz.bat (equal a b) baz.bar}}';
-
-    var context = { bar: 'LOL', baz: { bat: 'foo!', bar: 'bar!' } };
-    var helpers = {
-      blog: function(val, that, theOther) {
-        return 'val is ' + val + ', ' + that + ' and ' + theOther;
-      },
-      equal: function(x, y) {
-        return x === y;
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'val is foo!, true and bar!');
+    expectTemplate('{{blog baz.bat (equal a b) baz.bar}}')
+      .withInput({ bar: 'LOL', baz: { bat: 'foo!', bar: 'bar!' } })
+      .withHelpers({
+        blog: function(val, that, theOther) {
+          return 'val is ' + val + ', ' + that + ' and ' + theOther;
+        },
+        equal: function(x, y) {
+          return x === y;
+        }
+      })
+      .toCompileTo('val is foo!, true and bar!');
   });
 
   it('supports much nesting', function() {
-    var string = '{{blog (equal (equal true true) true)}}';
-
-    var context = { bar: 'LOL' };
-    var helpers = {
-      blog: function(val) {
-        return 'val is ' + val;
-      },
-      equal: function(x, y) {
-        return x === y;
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'val is true');
+    expectTemplate('{{blog (equal (equal true true) true)}}')
+      .withInput({ bar: 'LOL' })
+      .withHelpers({
+        blog: function(val) {
+          return 'val is ' + val;
+        },
+        equal: function(x, y) {
+          return x === y;
+        }
+      })
+      .toCompileTo('val is true');
   });
 
   it('GH-800 : Complex subexpressions', function() {
@@ -69,20 +65,33 @@ describe('subexpressions', function() {
       }
     };
 
-    shouldCompileTo(
-      "{{dash 'abc' (concat a b)}}",
-      [context, helpers],
-      'abc-ab'
-    );
-    shouldCompileTo('{{dash d (concat a b)}}', [context, helpers], 'd-ab');
-    shouldCompileTo('{{dash c.c (concat a b)}}', [context, helpers], 'c-ab');
-    shouldCompileTo('{{dash (concat a b) c.c}}', [context, helpers], 'ab-c');
-    shouldCompileTo('{{dash (concat a e.e) c.c}}', [context, helpers], 'ae-c');
+    expectTemplate("{{dash 'abc' (concat a b)}}")
+      .withInput(context)
+      .withHelpers(helpers)
+      .toCompileTo('abc-ab');
+
+    expectTemplate('{{dash d (concat a b)}}')
+      .withInput(context)
+      .withHelpers(helpers)
+      .toCompileTo('d-ab');
+
+    expectTemplate('{{dash c.c (concat a b)}}')
+      .withInput(context)
+      .withHelpers(helpers)
+      .toCompileTo('c-ab');
+
+    expectTemplate('{{dash (concat a b) c.c}}')
+      .withInput(context)
+      .withHelpers(helpers)
+      .toCompileTo('ab-c');
+
+    expectTemplate('{{dash (concat a e.e) c.c}}')
+      .withInput(context)
+      .withHelpers(helpers)
+      .toCompileTo('ae-c');
   });
 
   it('provides each nested helper invocation its own options hash', function() {
-    var string = '{{equal (equal true true) true}}';
-
     var lastOptions = null;
     var helpers = {
       equal: function(x, y, options) {
@@ -93,200 +102,177 @@ describe('subexpressions', function() {
         return x === y;
       }
     };
-    shouldCompileTo(string, [{}, helpers], 'true');
+    expectTemplate('{{equal (equal true true) true}}')
+      .withHelpers(helpers)
+      .toCompileTo('true');
   });
 
   it('with hashes', function() {
-    var string = "{{blog (equal (equal true true) true fun='yes')}}";
-
-    var context = { bar: 'LOL' };
-    var helpers = {
-      blog: function(val) {
-        return 'val is ' + val;
-      },
-      equal: function(x, y) {
-        return x === y;
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'val is true');
+    expectTemplate("{{blog (equal (equal true true) true fun='yes')}}")
+      .withInput({ bar: 'LOL' })
+      .withHelpers({
+        blog: function(val) {
+          return 'val is ' + val;
+        },
+        equal: function(x, y) {
+          return x === y;
+        }
+      })
+      .toCompileTo('val is true');
   });
 
   it('as hashes', function() {
-    var string = "{{blog fun=(equal (blog fun=1) 'val is 1')}}";
-
-    var helpers = {
-      blog: function(options) {
-        return 'val is ' + options.hash.fun;
-      },
-      equal: function(x, y) {
-        return x === y;
-      }
-    };
-    shouldCompileTo(string, [{}, helpers], 'val is true');
+    expectTemplate("{{blog fun=(equal (blog fun=1) 'val is 1')}}")
+      .withHelpers({
+        blog: function(options) {
+          return 'val is ' + options.hash.fun;
+        },
+        equal: function(x, y) {
+          return x === y;
+        }
+      })
+      .toCompileTo('val is true');
   });
 
   it('multiple subexpressions in a hash', function() {
-    var string =
-      '{{input aria-label=(t "Name") placeholder=(t "Example User")}}';
-
-    var helpers = {
-      input: function(options) {
-        var hash = options.hash;
-        var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
-        var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
-        return new Handlebars.SafeString(
-          '<input aria-label="' +
-            ariaLabel +
-            '" placeholder="' +
-            placeholder +
-            '" />'
-        );
-      },
-      t: function(defaultString) {
-        return new Handlebars.SafeString(defaultString);
-      }
-    };
-    shouldCompileTo(
-      string,
-      [{}, helpers],
-      '<input aria-label="Name" placeholder="Example User" />'
-    );
+    expectTemplate(
+      '{{input aria-label=(t "Name") placeholder=(t "Example User")}}'
+    )
+      .withHelpers({
+        input: function(options) {
+          var hash = options.hash;
+          var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
+          var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
+          return new Handlebars.SafeString(
+            '<input aria-label="' +
+              ariaLabel +
+              '" placeholder="' +
+              placeholder +
+              '" />'
+          );
+        },
+        t: function(defaultString) {
+          return new Handlebars.SafeString(defaultString);
+        }
+      })
+      .toCompileTo('<input aria-label="Name" placeholder="Example User" />');
   });
 
   it('multiple subexpressions in a hash with context', function() {
-    var string =
-      '{{input aria-label=(t item.field) placeholder=(t item.placeholder)}}';
-
-    var context = {
-      item: {
-        field: 'Name',
-        placeholder: 'Example User'
-      }
-    };
-
-    var helpers = {
-      input: function(options) {
-        var hash = options.hash;
-        var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
-        var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
-        return new Handlebars.SafeString(
-          '<input aria-label="' +
-            ariaLabel +
-            '" placeholder="' +
-            placeholder +
-            '" />'
-        );
-      },
-      t: function(defaultString) {
-        return new Handlebars.SafeString(defaultString);
-      }
-    };
-    shouldCompileTo(
-      string,
-      [context, helpers],
-      '<input aria-label="Name" placeholder="Example User" />'
-    );
+    expectTemplate(
+      '{{input aria-label=(t item.field) placeholder=(t item.placeholder)}}'
+    )
+      .withInput({
+        item: {
+          field: 'Name',
+          placeholder: 'Example User'
+        }
+      })
+      .withHelpers({
+        input: function(options) {
+          var hash = options.hash;
+          var ariaLabel = Handlebars.Utils.escapeExpression(hash['aria-label']);
+          var placeholder = Handlebars.Utils.escapeExpression(hash.placeholder);
+          return new Handlebars.SafeString(
+            '<input aria-label="' +
+              ariaLabel +
+              '" placeholder="' +
+              placeholder +
+              '" />'
+          );
+        },
+        t: function(defaultString) {
+          return new Handlebars.SafeString(defaultString);
+        }
+      })
+      .toCompileTo('<input aria-label="Name" placeholder="Example User" />');
   });
 
   it('in string params mode,', function() {
-    var template = CompilerContext.compile(
-      '{{snog (blorg foo x=y) yeah a=b}}',
-      { stringParams: true }
-    );
-
-    var helpers = {
-      snog: function(a, b, options) {
-        equals(a, 'foo');
-        equals(
-          options.types.length,
-          2,
-          'string params for outer helper processed correctly'
-        );
-        equals(
-          options.types[0],
-          'SubExpression',
-          'string params for outer helper processed correctly'
-        );
-        equals(
-          options.types[1],
-          'PathExpression',
-          'string params for outer helper processed correctly'
-        );
-        return a + b;
-      },
-
-      blorg: function(a, options) {
-        equals(
-          options.types.length,
-          1,
-          'string params for inner helper processed correctly'
-        );
-        equals(
-          options.types[0],
-          'PathExpression',
-          'string params for inner helper processed correctly'
-        );
-        return a;
-      }
-    };
+    expectTemplate('{{snog (blorg foo x=y) yeah a=b}}')
+      .withCompileOptions({ stringParams: true })
+      .withHelpers({
+        snog: function(a, b, options) {
+          equals(a, 'foo');
+          equals(
+            options.types.length,
+            2,
+            'string params for outer helper processed correctly'
+          );
+          equals(
+            options.types[0],
+            'SubExpression',
+            'string params for outer helper processed correctly'
+          );
+          equals(
+            options.types[1],
+            'PathExpression',
+            'string params for outer helper processed correctly'
+          );
+          return a + b;
+        },
 
-    var result = template(
-      {
+        blorg: function(a, options) {
+          equals(
+            options.types.length,
+            1,
+            'string params for inner helper processed correctly'
+          );
+          equals(
+            options.types[0],
+            'PathExpression',
+            'string params for inner helper processed correctly'
+          );
+          return a;
+        }
+      })
+      .withInput({
         foo: {},
         yeah: {}
-      },
-      { helpers: helpers }
-    );
-
-    equals(result, 'fooyeah');
+      })
+      .toCompileTo('fooyeah');
   });
 
   it('as hashes in string params mode', function() {
-    var template = CompilerContext.compile('{{blog fun=(bork)}}', {
-      stringParams: true
-    });
-
-    var helpers = {
-      blog: function(options) {
-        equals(options.hashTypes.fun, 'SubExpression');
-        return 'val is ' + options.hash.fun;
-      },
-      bork: function() {
-        return 'BORK';
-      }
-    };
-
-    var result = template({}, { helpers: helpers });
-    equals(result, 'val is BORK');
+    expectTemplate('{{blog fun=(bork)}}')
+      .withCompileOptions({ stringParams: true })
+      .withHelpers({
+        blog: function(options) {
+          equals(options.hashTypes.fun, 'SubExpression');
+          return 'val is ' + options.hash.fun;
+        },
+        bork: function() {
+          return 'BORK';
+        }
+      })
+      .toCompileTo('val is BORK');
   });
 
   it('subexpression functions on the context', function() {
-    var string = '{{foo (bar)}}!';
-    var context = {
-      bar: function() {
-        return 'LOL';
-      }
-    };
-    var helpers = {
-      foo: function(val) {
-        return val + val;
-      }
-    };
-    shouldCompileTo(string, [context, helpers], 'LOLLOL!');
+    expectTemplate('{{foo (bar)}}!')
+      .withInput({
+        bar: function() {
+          return 'LOL';
+        }
+      })
+      .withHelpers({
+        foo: function(val) {
+          return val + val;
+        }
+      })
+      .toCompileTo('LOLLOL!');
   });
 
   it("subexpressions can't just be property lookups", function() {
-    var string = '{{foo (bar)}}!';
-    var context = {
-      bar: 'LOL'
-    };
-    var helpers = {
-      foo: function(val) {
-        return val + val;
-      }
-    };
-    shouldThrow(function() {
-      shouldCompileTo(string, [context, helpers], 'LOLLOL!');
-    });
+    expectTemplate('{{foo (bar)}}!')
+      .withInput({
+        bar: 'LOL'
+      })
+      .withHelpers({
+        foo: function(val) {
+          return val + val;
+        }
+      })
+      .toThrow();
   });
 });
diff --git a/spec/track-ids.js b/spec/track-ids.js
index f7ad7abda..033e7b176 100644
--- a/spec/track-ids.js
+++ b/spec/track-ids.js
@@ -5,216 +5,184 @@ describe('track ids', function() {
   });
 
   it('should not include anything without the flag', function() {
-    var template = CompilerContext.compile('{{wycats is.a slave.driver}}');
-
-    var helpers = {
-      wycats: function(passiveVoice, noun, options) {
-        equal(options.ids, undefined);
-        equal(options.hashIds, undefined);
-
-        return 'success';
-      }
-    };
-
-    equals(template({}, { helpers: helpers }), 'success');
+    expectTemplate('{{wycats is.a slave.driver}}')
+      .withHelpers({
+        wycats: function(passiveVoice, noun, options) {
+          equal(options.ids, undefined);
+          equal(options.hashIds, undefined);
+
+          return 'success';
+        }
+      })
+      .toCompileTo('success');
   });
-  it('should include argument ids', function() {
-    var template = CompilerContext.compile('{{wycats is.a slave.driver}}', {
-      trackIds: true
-    });
-
-    var helpers = {
-      wycats: function(passiveVoice, noun, options) {
-        equal(options.ids[0], 'is.a');
-        equal(options.ids[1], 'slave.driver');
-
-        return (
-          'HELP ME MY BOSS ' +
-          options.ids[0] +
-          ':' +
-          passiveVoice +
-          ' ' +
-          options.ids[1] +
-          ':' +
-          noun
-        );
-      }
-    };
 
-    equals(
-      template(context, { helpers: helpers }),
-      'HELP ME MY BOSS is.a:foo slave.driver:bar'
-    );
+  it('should include argument ids', function() {
+    expectTemplate('{{wycats is.a slave.driver}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        wycats: function(passiveVoice, noun, options) {
+          equal(options.ids[0], 'is.a');
+          equal(options.ids[1], 'slave.driver');
+
+          return (
+            'HELP ME MY BOSS ' +
+            options.ids[0] +
+            ':' +
+            passiveVoice +
+            ' ' +
+            options.ids[1] +
+            ':' +
+            noun
+          );
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS is.a:foo slave.driver:bar');
   });
-  it('should include hash ids', function() {
-    var template = CompilerContext.compile(
-      '{{wycats bat=is.a baz=slave.driver}}',
-      { trackIds: true }
-    );
-
-    var helpers = {
-      wycats: function(options) {
-        equal(options.hashIds.bat, 'is.a');
-        equal(options.hashIds.baz, 'slave.driver');
-
-        return (
-          'HELP ME MY BOSS ' +
-          options.hashIds.bat +
-          ':' +
-          options.hash.bat +
-          ' ' +
-          options.hashIds.baz +
-          ':' +
-          options.hash.baz
-        );
-      }
-    };
 
-    equals(
-      template(context, { helpers: helpers }),
-      'HELP ME MY BOSS is.a:foo slave.driver:bar'
-    );
+  it('should include hash ids', function() {
+    expectTemplate('{{wycats bat=is.a baz=slave.driver}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        wycats: function(options) {
+          equal(options.hashIds.bat, 'is.a');
+          equal(options.hashIds.baz, 'slave.driver');
+
+          return (
+            'HELP ME MY BOSS ' +
+            options.hashIds.bat +
+            ':' +
+            options.hash.bat +
+            ' ' +
+            options.hashIds.baz +
+            ':' +
+            options.hash.baz
+          );
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS is.a:foo slave.driver:bar');
   });
-  it('should note ../ and ./ references', function() {
-    var template = CompilerContext.compile(
-      '{{wycats ./is.a ../slave.driver this.is.a this}}',
-      { trackIds: true }
-    );
 
-    var helpers = {
-      wycats: function(passiveVoice, noun, thiz, thiz2, options) {
-        equal(options.ids[0], 'is.a');
-        equal(options.ids[1], '../slave.driver');
-        equal(options.ids[2], 'is.a');
-        equal(options.ids[3], '');
-
-        return (
-          'HELP ME MY BOSS ' +
-          options.ids[0] +
-          ':' +
-          passiveVoice +
-          ' ' +
-          options.ids[1] +
-          ':' +
-          noun
-        );
-      }
-    };
-
-    equals(
-      template(context, { helpers: helpers }),
-      'HELP ME MY BOSS is.a:foo ../slave.driver:undefined'
-    );
+  it('should note ../ and ./ references', function() {
+    expectTemplate('{{wycats ./is.a ../slave.driver this.is.a this}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        wycats: function(passiveVoice, noun, thiz, thiz2, options) {
+          equal(options.ids[0], 'is.a');
+          equal(options.ids[1], '../slave.driver');
+          equal(options.ids[2], 'is.a');
+          equal(options.ids[3], '');
+
+          return (
+            'HELP ME MY BOSS ' +
+            options.ids[0] +
+            ':' +
+            passiveVoice +
+            ' ' +
+            options.ids[1] +
+            ':' +
+            noun
+          );
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS is.a:foo ../slave.driver:undefined');
   });
-  it('should note @data references', function() {
-    var template = CompilerContext.compile('{{wycats @is.a @slave.driver}}', {
-      trackIds: true
-    });
 
-    var helpers = {
-      wycats: function(passiveVoice, noun, options) {
-        equal(options.ids[0], '@is.a');
-        equal(options.ids[1], '@slave.driver');
-
-        return (
-          'HELP ME MY BOSS ' +
-          options.ids[0] +
-          ':' +
-          passiveVoice +
-          ' ' +
-          options.ids[1] +
-          ':' +
-          noun
-        );
-      }
-    };
-
-    equals(
-      template({}, { helpers: helpers, data: context }),
-      'HELP ME MY BOSS @is.a:foo @slave.driver:bar'
-    );
+  it('should note @data references', function() {
+    expectTemplate('{{wycats @is.a @slave.driver}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        wycats: function(passiveVoice, noun, options) {
+          equal(options.ids[0], '@is.a');
+          equal(options.ids[1], '@slave.driver');
+
+          return (
+            'HELP ME MY BOSS ' +
+            options.ids[0] +
+            ':' +
+            passiveVoice +
+            ' ' +
+            options.ids[1] +
+            ':' +
+            noun
+          );
+        }
+      })
+      .withRuntimeOptions({ data: context })
+      .toCompileTo('HELP ME MY BOSS @is.a:foo @slave.driver:bar');
   });
 
   it('should return null for constants', function() {
-    var template = CompilerContext.compile('{{wycats 1 "foo" key=false}}', {
-      trackIds: true
-    });
-
-    var helpers = {
-      wycats: function(passiveVoice, noun, options) {
-        equal(options.ids[0], null);
-        equal(options.ids[1], null);
-        equal(options.hashIds.key, null);
-
-        return (
-          'HELP ME MY BOSS ' +
-          passiveVoice +
-          ' ' +
-          noun +
-          ' ' +
-          options.hash.key
-        );
-      }
-    };
-
-    equals(
-      template(context, { helpers: helpers }),
-      'HELP ME MY BOSS 1 foo false'
-    );
+    expectTemplate('{{wycats 1 "foo" key=false}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        wycats: function(passiveVoice, noun, options) {
+          equal(options.ids[0], null);
+          equal(options.ids[1], null);
+          equal(options.hashIds.key, null);
+
+          return (
+            'HELP ME MY BOSS ' +
+            passiveVoice +
+            ' ' +
+            noun +
+            ' ' +
+            options.hash.key
+          );
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS 1 foo false');
   });
-  it('should return true for subexpressions', function() {
-    var template = CompilerContext.compile('{{wycats (sub)}}', {
-      trackIds: true
-    });
-
-    var helpers = {
-      sub: function() {
-        return 1;
-      },
-      wycats: function(passiveVoice, options) {
-        equal(options.ids[0], true);
-
-        return 'HELP ME MY BOSS ' + passiveVoice;
-      }
-    };
 
-    equals(template(context, { helpers: helpers }), 'HELP ME MY BOSS 1');
+  it('should return true for subexpressions', function() {
+    expectTemplate('{{wycats (sub)}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        sub: function() {
+          return 1;
+        },
+        wycats: function(passiveVoice, options) {
+          equal(options.ids[0], true);
+
+          return 'HELP ME MY BOSS ' + passiveVoice;
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS 1');
   });
 
   it('should use block param paths', function() {
-    var template = CompilerContext.compile(
-      '{{#doIt as |is|}}{{wycats is.a slave.driver is}}{{/doIt}}',
-      { trackIds: true }
-    );
-
-    var helpers = {
-      doIt: function(options) {
-        var blockParams = [this.is];
-        blockParams.path = ['zomg'];
-        return options.fn(this, { blockParams: blockParams });
-      },
-      wycats: function(passiveVoice, noun, blah, options) {
-        equal(options.ids[0], 'zomg.a');
-        equal(options.ids[1], 'slave.driver');
-        equal(options.ids[2], 'zomg');
-
-        return (
-          'HELP ME MY BOSS ' +
-          options.ids[0] +
-          ':' +
-          passiveVoice +
-          ' ' +
-          options.ids[1] +
-          ':' +
-          noun
-        );
-      }
-    };
-
-    equals(
-      template(context, { helpers: helpers }),
-      'HELP ME MY BOSS zomg.a:foo slave.driver:bar'
-    );
+    expectTemplate('{{#doIt as |is|}}{{wycats is.a slave.driver is}}{{/doIt}}')
+      .withCompileOptions({ trackIds: true })
+      .withHelpers({
+        doIt: function(options) {
+          var blockParams = [this.is];
+          blockParams.path = ['zomg'];
+          return options.fn(this, { blockParams: blockParams });
+        },
+        wycats: function(passiveVoice, noun, blah, options) {
+          equal(options.ids[0], 'zomg.a');
+          equal(options.ids[1], 'slave.driver');
+          equal(options.ids[2], 'zomg');
+
+          return (
+            'HELP ME MY BOSS ' +
+            options.ids[0] +
+            ':' +
+            passiveVoice +
+            ' ' +
+            options.ids[1] +
+            ':' +
+            noun
+          );
+        }
+      })
+      .withInput(context)
+      .toCompileTo('HELP ME MY BOSS zomg.a:foo slave.driver:bar');
   });
 
   describe('builtin helpers', function() {
@@ -229,119 +197,85 @@ describe('track ids', function() {
 
     describe('#each', function() {
       it('should track contextPath for arrays', function() {
-        var template = CompilerContext.compile(
-          '{{#each array}}{{wycats name}}{{/each}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template(
-            { array: [{ name: 'foo' }, { name: 'bar' }] },
-            { helpers: helpers }
-          ),
-          'foo:array.0\nbar:array.1\n'
-        );
+        expectTemplate('{{#each array}}{{wycats name}}{{/each}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ array: [{ name: 'foo' }, { name: 'bar' }] })
+          .toCompileTo('foo:array.0\nbar:array.1\n');
       });
+
       it('should track contextPath for keys', function() {
-        var template = CompilerContext.compile(
-          '{{#each object}}{{wycats name}}{{/each}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template(
-            { object: { foo: { name: 'foo' }, bar: { name: 'bar' } } },
-            { helpers: helpers }
-          ),
-          'foo:object.foo\nbar:object.bar\n'
-        );
+        expectTemplate('{{#each object}}{{wycats name}}{{/each}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ object: { foo: { name: 'foo' }, bar: { name: 'bar' } } })
+          .toCompileTo('foo:object.foo\nbar:object.bar\n');
       });
+
       it('should handle nesting', function() {
-        var template = CompilerContext.compile(
-          '{{#each .}}{{#each .}}{{wycats name}}{{/each}}{{/each}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template(
-            { array: [{ name: 'foo' }, { name: 'bar' }] },
-            { helpers: helpers }
-          ),
-          'foo:.array..0\nbar:.array..1\n'
-        );
+        expectTemplate(
+          '{{#each .}}{{#each .}}{{wycats name}}{{/each}}{{/each}}'
+        )
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ array: [{ name: 'foo' }, { name: 'bar' }] })
+          .toCompileTo('foo:.array..0\nbar:.array..1\n');
       });
+
       it('should handle block params', function() {
-        var template = CompilerContext.compile(
-          '{{#each array as |value|}}{{blockParams value.name}}{{/each}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template(
-            { array: [{ name: 'foo' }, { name: 'bar' }] },
-            { helpers: helpers }
-          ),
-          'foo:array.0.name\nbar:array.1.name\n'
-        );
+        expectTemplate(
+          '{{#each array as |value|}}{{blockParams value.name}}{{/each}}'
+        )
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ array: [{ name: 'foo' }, { name: 'bar' }] })
+          .toCompileTo('foo:array.0.name\nbar:array.1.name\n');
       });
     });
+
     describe('#with', function() {
       it('should track contextPath', function() {
-        var template = CompilerContext.compile(
-          '{{#with field}}{{wycats name}}{{/with}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template({ field: { name: 'foo' } }, { helpers: helpers }),
-          'foo:field\n'
-        );
+        expectTemplate('{{#with field}}{{wycats name}}{{/with}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ field: { name: 'foo' } })
+          .toCompileTo('foo:field\n');
       });
-      it('should handle nesting', function() {
-        var template = CompilerContext.compile(
-          '{{#with bat}}{{#with field}}{{wycats name}}{{/with}}{{/with}}',
-          { trackIds: true }
-        );
 
-        equals(
-          template({ bat: { field: { name: 'foo' } } }, { helpers: helpers }),
-          'foo:bat.field\n'
-        );
+      it('should handle nesting', function() {
+        expectTemplate(
+          '{{#with bat}}{{#with field}}{{wycats name}}{{/with}}{{/with}}'
+        )
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ bat: { field: { name: 'foo' } } })
+          .toCompileTo('foo:bat.field\n');
       });
     });
+
     describe('#blockHelperMissing', function() {
       it('should track contextPath for arrays', function() {
-        var template = CompilerContext.compile(
-          '{{#field}}{{wycats name}}{{/field}}',
-          { trackIds: true }
-        );
-
-        equals(
-          template({ field: [{ name: 'foo' }] }, { helpers: helpers }),
-          'foo:field.0\n'
-        );
+        expectTemplate('{{#field}}{{wycats name}}{{/field}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ field: [{ name: 'foo' }] })
+          .toCompileTo('foo:field.0\n');
       });
-      it('should track contextPath for keys', function() {
-        var template = CompilerContext.compile(
-          '{{#field}}{{wycats name}}{{/field}}',
-          { trackIds: true }
-        );
 
-        equals(
-          template({ field: { name: 'foo' } }, { helpers: helpers }),
-          'foo:field\n'
-        );
+      it('should track contextPath for keys', function() {
+        expectTemplate('{{#field}}{{wycats name}}{{/field}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ field: { name: 'foo' } })
+          .toCompileTo('foo:field\n');
       });
-      it('should handle nesting', function() {
-        var template = CompilerContext.compile(
-          '{{#bat}}{{#field}}{{wycats name}}{{/field}}{{/bat}}',
-          { trackIds: true }
-        );
 
-        equals(
-          template({ bat: { field: { name: 'foo' } } }, { helpers: helpers }),
-          'foo:bat.field\n'
-        );
+      it('should handle nesting', function() {
+        expectTemplate('{{#bat}}{{#field}}{{wycats name}}{{/field}}{{/bat}}')
+          .withCompileOptions({ trackIds: true })
+          .withHelpers(helpers)
+          .withInput({ bat: { field: { name: 'foo' } } })
+          .toCompileTo('foo:bat.field\n');
       });
     });
   });
diff --git a/spec/utils.js b/spec/utils.js
index 667aa0ed3..f4a4e3e4f 100644
--- a/spec/utils.js
+++ b/spec/utils.js
@@ -15,11 +15,9 @@ describe('utils', function() {
     it('it should not escape SafeString properties', function() {
       var name = new Handlebars.SafeString('<em>Sean O&#x27;Malley</em>');
 
-      shouldCompileTo(
-        '{{name}}',
-        [{ name: name }],
-        '<em>Sean O&#x27;Malley</em>'
-      );
+      expectTemplate('{{name}}')
+        .withInput({ name: name })
+        .toCompileTo('<em>Sean O&#x27;Malley</em>');
     });
   });
 
diff --git a/spec/whitespace-control.js b/spec/whitespace-control.js
index b1a6db045..f826d95a1 100644
--- a/spec/whitespace-control.js
+++ b/spec/whitespace-control.js
@@ -2,125 +2,156 @@ describe('whitespace control', function() {
   it('should strip whitespace around mustache calls', function() {
     var hash = { foo: 'bar<' };
 
-    shouldCompileTo(' {{~foo~}} ', hash, 'bar&lt;');
-    shouldCompileTo(' {{~foo}} ', hash, 'bar&lt; ');
-    shouldCompileTo(' {{foo~}} ', hash, ' bar&lt;');
+    expectTemplate(' {{~foo~}} ')
+      .withInput(hash)
+      .toCompileTo('bar&lt;');
 
-    shouldCompileTo(' {{~&foo~}} ', hash, 'bar<');
-    shouldCompileTo(' {{~{foo}~}} ', hash, 'bar<');
+    expectTemplate(' {{~foo}} ')
+      .withInput(hash)
+      .toCompileTo('bar&lt; ');
 
-    shouldCompileTo('1\n{{foo~}} \n\n 23\n{{bar}}4', {}, '1\n23\n4');
+    expectTemplate(' {{foo~}} ')
+      .withInput(hash)
+      .toCompileTo(' bar&lt;');
+
+    expectTemplate(' {{~&foo~}} ')
+      .withInput(hash)
+      .toCompileTo('bar<');
+
+    expectTemplate(' {{~{foo}~}} ')
+      .withInput(hash)
+      .toCompileTo('bar<');
+
+    expectTemplate('1\n{{foo~}} \n\n 23\n{{bar}}4').toCompileTo('1\n23\n4');
   });
 
   describe('blocks', function() {
     it('should strip whitespace around simple block calls', function() {
       var hash = { foo: 'bar<' };
 
-      shouldCompileTo(' {{~#if foo~}} bar {{~/if~}} ', hash, 'bar');
-      shouldCompileTo(' {{#if foo~}} bar {{/if~}} ', hash, ' bar ');
-      shouldCompileTo(' {{~#if foo}} bar {{~/if}} ', hash, ' bar ');
-      shouldCompileTo(' {{#if foo}} bar {{/if}} ', hash, '  bar  ');
+      expectTemplate(' {{~#if foo~}} bar {{~/if~}} ')
+        .withInput(hash)
+        .toCompileTo('bar');
 
-      shouldCompileTo(
-        ' \n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\n ',
-        hash,
-        'bar'
-      );
-      shouldCompileTo(
-        ' a\n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\na ',
-        hash,
-        ' abara '
-      );
+      expectTemplate(' {{#if foo~}} bar {{/if~}} ')
+        .withInput(hash)
+        .toCompileTo(' bar ');
+
+      expectTemplate(' {{~#if foo}} bar {{~/if}} ')
+        .withInput(hash)
+        .toCompileTo(' bar ');
+
+      expectTemplate(' {{#if foo}} bar {{/if}} ')
+        .withInput(hash)
+        .toCompileTo('  bar  ');
+
+      expectTemplate(' \n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\n ')
+        .withInput(hash)
+        .toCompileTo('bar');
+
+      expectTemplate(' a\n\n{{~#if foo~}} \n\nbar \n\n{{~/if~}}\n\na ')
+        .withInput(hash)
+        .toCompileTo(' abara ');
     });
+
     it('should strip whitespace around inverse block calls', function() {
-      var hash = {};
+      expectTemplate(' {{~^if foo~}} bar {{~/if~}} ').toCompileTo('bar');
 
-      shouldCompileTo(' {{~^if foo~}} bar {{~/if~}} ', hash, 'bar');
-      shouldCompileTo(' {{^if foo~}} bar {{/if~}} ', hash, ' bar ');
-      shouldCompileTo(' {{~^if foo}} bar {{~/if}} ', hash, ' bar ');
-      shouldCompileTo(' {{^if foo}} bar {{/if}} ', hash, '  bar  ');
+      expectTemplate(' {{^if foo~}} bar {{/if~}} ').toCompileTo(' bar ');
 
-      shouldCompileTo(
-        ' \n\n{{~^if foo~}} \n\nbar \n\n{{~/if~}}\n\n ',
-        hash,
-        'bar'
-      );
+      expectTemplate(' {{~^if foo}} bar {{~/if}} ').toCompileTo(' bar ');
+
+      expectTemplate(' {{^if foo}} bar {{/if}} ').toCompileTo('  bar  ');
+
+      expectTemplate(
+        ' \n\n{{~^if foo~}} \n\nbar \n\n{{~/if~}}\n\n '
+      ).toCompileTo('bar');
     });
+
     it('should strip whitespace around complex block calls', function() {
       var hash = { foo: 'bar<' };
 
-      shouldCompileTo('{{#if foo~}} bar {{~^~}} baz {{~/if}}', hash, 'bar');
-      shouldCompileTo('{{#if foo~}} bar {{^~}} baz {{/if}}', hash, 'bar ');
-      shouldCompileTo('{{#if foo}} bar {{~^~}} baz {{~/if}}', hash, ' bar');
-      shouldCompileTo('{{#if foo}} bar {{^~}} baz {{/if}}', hash, ' bar ');
+      expectTemplate('{{#if foo~}} bar {{~^~}} baz {{~/if}}')
+        .withInput(hash)
+        .toCompileTo('bar');
 
-      shouldCompileTo('{{#if foo~}} bar {{~else~}} baz {{~/if}}', hash, 'bar');
+      expectTemplate('{{#if foo~}} bar {{^~}} baz {{/if}}')
+        .withInput(hash)
+        .toCompileTo('bar ');
 
-      shouldCompileTo(
-        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
-        hash,
-        'bar'
-      );
-      shouldCompileTo(
-        '\n\n{{~#if foo~}} \n\n{{{foo}}} \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
-        hash,
-        'bar<'
+      expectTemplate('{{#if foo}} bar {{~^~}} baz {{~/if}}')
+        .withInput(hash)
+        .toCompileTo(' bar');
+
+      expectTemplate('{{#if foo}} bar {{^~}} baz {{/if}}')
+        .withInput(hash)
+        .toCompileTo(' bar ');
+
+      expectTemplate('{{#if foo~}} bar {{~else~}} baz {{~/if}}')
+        .withInput(hash)
+        .toCompileTo('bar');
+
+      expectTemplate(
+        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n'
+      )
+        .withInput(hash)
+        .toCompileTo('bar');
+
+      expectTemplate(
+        '\n\n{{~#if foo~}} \n\n{{{foo}}} \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n'
+      )
+        .withInput(hash)
+        .toCompileTo('bar<');
+
+      expectTemplate('{{#if foo~}} bar {{~^~}} baz {{~/if}}').toCompileTo(
+        'baz'
       );
 
-      hash = {};
+      expectTemplate('{{#if foo}} bar {{~^~}} baz {{/if}}').toCompileTo('baz ');
 
-      shouldCompileTo('{{#if foo~}} bar {{~^~}} baz {{~/if}}', hash, 'baz');
-      shouldCompileTo('{{#if foo}} bar {{~^~}} baz {{/if}}', hash, 'baz ');
-      shouldCompileTo('{{#if foo~}} bar {{~^}} baz {{~/if}}', hash, ' baz');
-      shouldCompileTo('{{#if foo~}} bar {{~^}} baz {{/if}}', hash, ' baz ');
+      expectTemplate('{{#if foo~}} bar {{~^}} baz {{~/if}}').toCompileTo(
+        ' baz'
+      );
 
-      shouldCompileTo('{{#if foo~}} bar {{~else~}} baz {{~/if}}', hash, 'baz');
+      expectTemplate('{{#if foo~}} bar {{~^}} baz {{/if}}').toCompileTo(
+        ' baz '
+      );
 
-      shouldCompileTo(
-        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n',
-        hash,
+      expectTemplate('{{#if foo~}} bar {{~else~}} baz {{~/if}}').toCompileTo(
         'baz'
       );
+
+      expectTemplate(
+        '\n\n{{~#if foo~}} \n\nbar \n\n{{~^~}} \n\nbaz \n\n{{~/if~}}\n\n'
+      ).toCompileTo('baz');
     });
   });
 
   it('should strip whitespace around partials', function() {
-    shouldCompileToWithPartials(
-      'foo {{~> dude~}} ',
-      [{}, {}, { dude: 'bar' }],
-      true,
-      'foobar'
-    );
-    shouldCompileToWithPartials(
-      'foo {{> dude~}} ',
-      [{}, {}, { dude: 'bar' }],
-      true,
-      'foo bar'
-    );
-    shouldCompileToWithPartials(
-      'foo {{> dude}} ',
-      [{}, {}, { dude: 'bar' }],
-      true,
-      'foo bar '
-    );
-
-    shouldCompileToWithPartials(
-      'foo\n {{~> dude}} ',
-      [{}, {}, { dude: 'bar' }],
-      true,
-      'foobar'
-    );
-    shouldCompileToWithPartials(
-      'foo\n {{> dude}} ',
-      [{}, {}, { dude: 'bar' }],
-      true,
-      'foo\n bar'
-    );
+    expectTemplate('foo {{~> dude~}} ')
+      .withPartials({ dude: 'bar' })
+      .toCompileTo('foobar');
+
+    expectTemplate('foo {{> dude~}} ')
+      .withPartials({ dude: 'bar' })
+      .toCompileTo('foo bar');
+
+    expectTemplate('foo {{> dude}} ')
+      .withPartials({ dude: 'bar' })
+      .toCompileTo('foo bar ');
+
+    expectTemplate('foo\n {{~> dude}} ')
+      .withPartials({ dude: 'bar' })
+      .toCompileTo('foobar');
+
+    expectTemplate('foo\n {{> dude}} ')
+      .withPartials({ dude: 'bar' })
+      .toCompileTo('foo\n bar');
   });
 
   it('should only strip whitespace once', function() {
-    var hash = { foo: 'bar' };
-
-    shouldCompileTo(' {{~foo~}} {{foo}} {{foo}} ', hash, 'barbar bar ');
+    expectTemplate(' {{~foo~}} {{foo}} {{foo}} ')
+      .withInput({ foo: 'bar' })
+      .toCompileTo('barbar bar ');
   });
 });

From f0589701698268578199be25285b2ebea1c1e427 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Sat, 13 Feb 2021 13:40:53 +0100
Subject: [PATCH 186/191] fix: escape property names in compat mode (#1736)

---
 .../compiler/javascript-compiler.js           |   7 +-
 package-lock.json                             | 641 +-----------------
 spec/security.js                              |  22 +
 3 files changed, 40 insertions(+), 630 deletions(-)

diff --git a/lib/handlebars/compiler/javascript-compiler.js b/lib/handlebars/compiler/javascript-compiler.js
index 63f90bdc2..db1c50c62 100644
--- a/lib/handlebars/compiler/javascript-compiler.js
+++ b/lib/handlebars/compiler/javascript-compiler.js
@@ -16,7 +16,12 @@ JavaScriptCompiler.prototype = {
     return this.internalNameLookup(parent, name);
   },
   depthedLookup: function(name) {
-    return [this.aliasable('container.lookup'), '(depths, "', name, '")'];
+    return [
+      this.aliasable('container.lookup'),
+      '(depths, ',
+      JSON.stringify(name),
+      ')'
+    ];
   },
 
   compilerInfo: function() {
diff --git a/package-lock.json b/package-lock.json
index 28b4eb763..c9abea56d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.5",
+  "version": "4.7.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2826,7 +2826,7 @@
         "request": "^2.88.0",
         "strip-json-comments": "^2.0.1",
         "tslint": "^5.14.0",
-        "typescript": "^3.9.0-dev.20200402"
+        "typescript": "^4.3.0-dev.20210213"
       },
       "dependencies": {
         "fs-extra": {
@@ -2841,9 +2841,9 @@
           }
         },
         "typescript": {
-          "version": "3.9.0-dev.20200402",
-          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.0-dev.20200402.tgz",
-          "integrity": "sha512-CxOOy4lmaPnuyG34aP1kF2l++aou/IM+T0XsEeXZWb6xbIwx+3rt1DbLNS0pQIsLxi7NITq3x4M1qXhOQOAE6A==",
+          "version": "4.3.0-dev.20210213",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.3.0-dev.20210213.tgz",
+          "integrity": "sha512-zJG5QIkviTzzYRmKylVXIG2YTV7P18rKLclZu67WypYhsPtaC3KSDD5mOiXJsurDw5rqTqN/OgjQ37cpc11P3A==",
           "dev": true
         }
       }
@@ -3904,628 +3904,14 @@
       "dev": true
     },
     "fsevents": {
-      "version": "1.2.11",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.11.tgz",
-      "integrity": "sha512-+ux3lx6peh0BpvY0JebGyZoiR4D+oYzdPZMKJwkZ+sFkNJzpL7tXc/wehS49gUAxg3tmMHPHZkA8JU2rhhgDHw==",
+      "version": "1.2.13",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.13.tgz",
+      "integrity": "sha512-oWb1Z6mkHIskLzEJ/XWX0srkpkTQ7vaopMQkyaEIoq0fmtFVxOthb8cCxeT+p3ynTdkk/RZwbgG4brR5BeWECw==",
       "dev": true,
       "optional": true,
       "requires": {
         "bindings": "^1.5.0",
-        "nan": "^2.12.1",
-        "node-pre-gyp": "*"
-      },
-      "dependencies": {
-        "abbrev": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
-          "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
-          "dev": true,
-          "optional": true
-        },
-        "ansi-regex": {
-          "version": "2.1.1",
-          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-          "dev": true,
-          "optional": true
-        },
-        "aproba": {
-          "version": "1.2.0",
-          "resolved": "https://registry.npmjs.org/aproba/-/aproba-1.2.0.tgz",
-          "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
-          "dev": true,
-          "optional": true
-        },
-        "are-we-there-yet": {
-          "version": "1.1.5",
-          "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
-          "integrity": "sha512-5hYdAkZlcG8tOLujVDTgCT+uPX0VnpAH28gWsLfzpXYm7wP6mp5Q/gYyR7YQ0cKVJcXJnl3j2kpBan13PtQf6w==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "delegates": "^1.0.0",
-            "readable-stream": "^2.0.6"
-          }
-        },
-        "balanced-match": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-          "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
-          "dev": true,
-          "optional": true
-        },
-        "brace-expansion": {
-          "version": "1.1.11",
-          "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-          "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "balanced-match": "^1.0.0",
-            "concat-map": "0.0.1"
-          }
-        },
-        "chownr": {
-          "version": "1.1.3",
-          "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.3.tgz",
-          "integrity": "sha512-i70fVHhmV3DtTl6nqvZOnIjbY0Pe4kAUjwHj8z0zAdgBtYrJyYwLKCCuRBQ5ppkyL0AkN7HKRnETdmdp1zqNXw==",
-          "dev": true,
-          "optional": true
-        },
-        "code-point-at": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
-          "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=",
-          "dev": true,
-          "optional": true
-        },
-        "concat-map": {
-          "version": "0.0.1",
-          "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-          "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
-          "dev": true,
-          "optional": true
-        },
-        "console-control-strings": {
-          "version": "1.1.0",
-          "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz",
-          "integrity": "sha1-PXz0Rk22RG6mRL9LOVB/mFEAjo4=",
-          "dev": true,
-          "optional": true
-        },
-        "core-util-is": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
-          "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=",
-          "dev": true,
-          "optional": true
-        },
-        "debug": {
-          "version": "3.2.6",
-          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
-          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "ms": "^2.1.1"
-          }
-        },
-        "deep-extend": {
-          "version": "0.6.0",
-          "resolved": "https://registry.npmjs.org/deep-extend/-/deep-extend-0.6.0.tgz",
-          "integrity": "sha512-LOHxIOaPYdHlJRtCQfDIVZtfw/ufM8+rVj649RIHzcm/vGwQRXFt6OPqIFWsm2XEMrNIEtWR64sY1LEKD2vAOA==",
-          "dev": true,
-          "optional": true
-        },
-        "delegates": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
-          "integrity": "sha1-hMbhWbgZBP3KWaDvRM2HDTElD5o=",
-          "dev": true,
-          "optional": true
-        },
-        "detect-libc": {
-          "version": "1.0.3",
-          "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-1.0.3.tgz",
-          "integrity": "sha1-+hN8S9aY7fVc1c0CrFWfkaTEups=",
-          "dev": true,
-          "optional": true
-        },
-        "fs-minipass": {
-          "version": "1.2.7",
-          "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-1.2.7.tgz",
-          "integrity": "sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "minipass": "^2.6.0"
-          }
-        },
-        "fs.realpath": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-          "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
-          "dev": true,
-          "optional": true
-        },
-        "gauge": {
-          "version": "2.7.4",
-          "resolved": "https://registry.npmjs.org/gauge/-/gauge-2.7.4.tgz",
-          "integrity": "sha1-LANAXHU4w51+s3sxcCLjJfsBi/c=",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "aproba": "^1.0.3",
-            "console-control-strings": "^1.0.0",
-            "has-unicode": "^2.0.0",
-            "object-assign": "^4.1.0",
-            "signal-exit": "^3.0.0",
-            "string-width": "^1.0.1",
-            "strip-ansi": "^3.0.1",
-            "wide-align": "^1.1.0"
-          }
-        },
-        "glob": {
-          "version": "7.1.6",
-          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
-          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "fs.realpath": "^1.0.0",
-            "inflight": "^1.0.4",
-            "inherits": "2",
-            "minimatch": "^3.0.4",
-            "once": "^1.3.0",
-            "path-is-absolute": "^1.0.0"
-          }
-        },
-        "has-unicode": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
-          "integrity": "sha1-4Ob+aijPUROIVeCG0Wkedx3iqLk=",
-          "dev": true,
-          "optional": true
-        },
-        "iconv-lite": {
-          "version": "0.4.24",
-          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.24.tgz",
-          "integrity": "sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "safer-buffer": ">= 2.1.2 < 3"
-          }
-        },
-        "ignore-walk": {
-          "version": "3.0.3",
-          "resolved": "https://registry.npmjs.org/ignore-walk/-/ignore-walk-3.0.3.tgz",
-          "integrity": "sha512-m7o6xuOaT1aqheYHKf8W6J5pYH85ZI9w077erOzLje3JsB1gkafkAhHHY19dqjulgIZHFm32Cp5uNZgcQqdJKw==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "minimatch": "^3.0.4"
-          }
-        },
-        "inflight": {
-          "version": "1.0.6",
-          "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
-          "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "once": "^1.3.0",
-            "wrappy": "1"
-          }
-        },
-        "inherits": {
-          "version": "2.0.4",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
-          "dev": true,
-          "optional": true
-        },
-        "ini": {
-          "version": "1.3.5",
-          "resolved": "https://registry.npmjs.org/ini/-/ini-1.3.5.tgz",
-          "integrity": "sha512-RZY5huIKCMRWDUqZlEi72f/lmXKMvuszcMBduliQ3nnWbx9X/ZBQO7DijMEYS9EhHBb2qacRUMtC7svLwe0lcw==",
-          "dev": true,
-          "optional": true
-        },
-        "is-fullwidth-code-point": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-          "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "number-is-nan": "^1.0.0"
-          }
-        },
-        "isarray": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
-          "dev": true,
-          "optional": true
-        },
-        "minimatch": {
-          "version": "3.0.4",
-          "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-          "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "brace-expansion": "^1.1.7"
-          }
-        },
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true,
-          "optional": true
-        },
-        "minipass": {
-          "version": "2.9.0",
-          "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.9.0.tgz",
-          "integrity": "sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "safe-buffer": "^5.1.2",
-            "yallist": "^3.0.0"
-          }
-        },
-        "minizlib": {
-          "version": "1.3.3",
-          "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-1.3.3.tgz",
-          "integrity": "sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "minipass": "^2.9.0"
-          }
-        },
-        "mkdirp": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-          "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "minimist": "0.0.8"
-          }
-        },
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-          "dev": true,
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-            "chownr": "^1.1.1",
-            "fs-minipass": "^1.2.5",
-            "minipass": "^2.8.6",
-            "minizlib": "^1.2.1",
-            "mkdirp": "^0.5.0",
-            "safe-buffer": "^5.1.2",
-            "yallist": "^3.0.3"
-          }
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-        "util-deprecate": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-          "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
-          "dev": true,
-          "optional": true
-        },
-        "wide-align": {
-          "version": "1.1.3",
-          "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
-          "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
-          "dev": true,
-          "optional": true,
-          "requires": {
-            "string-width": "^1.0.2 || 2"
-          }
-        },
-        "wrappy": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-          "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
-          "dev": true,
-          "optional": true
-        },
-        "yallist": {
-          "version": "3.1.1",
-          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
-          "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==",
-          "dev": true,
-          "optional": true
-        }
+        "nan": "^2.12.1"
       }
     },
     "functional-red-black-tree": {
@@ -7636,9 +7022,9 @@
       "dev": true
     },
     "nan": {
-      "version": "2.14.0",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
-      "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg==",
+      "version": "2.14.2",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.2.tgz",
+      "integrity": "sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==",
       "dev": true,
       "optional": true
     },
@@ -7821,9 +7207,6 @@
       "dev": true,
       "requires": {
         "underscore": ">= 1.1.5"
-      },
-      "dependencies": {
-        "browserify": {}
       }
     },
     "nopt": {
diff --git a/spec/security.js b/spec/security.js
index 25aabeb7b..2bc66f711 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -396,6 +396,28 @@ describe('security issues', function() {
       });
     });
   });
+
+  describe('escapes template variables', function() {
+    it('in compat mode', function() {
+      expectTemplate("{{'a\\b'}}")
+        .withCompileOptions({ compat: true })
+        .withInput({ 'a\\b': 'c' })
+        .toCompileTo('c');
+    });
+
+    it('in default mode', function() {
+      expectTemplate("{{'a\\b'}}")
+        .withCompileOptions()
+        .withInput({ 'a\\b': 'c' })
+        .toCompileTo('c');
+    });
+    it('in default mode', function() {
+      expectTemplate("{{'a\\b'}}")
+        .withCompileOptions({ strict: true })
+        .withInput({ 'a\\b': 'c' })
+        .toCompileTo('c');
+    });
+  });
 });
 
 function wrapToAdjustContainer(precompiledTemplateFunction) {

From b6d3de7123eebba603e321f04afdbae608e8fea8 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Sat, 13 Feb 2021 13:41:40 +0100
Subject: [PATCH 187/191] fix: check prototype property access in strict-mode
 (#1736)

---
 lib/handlebars/runtime.js | 2 +-
 spec/security.js          | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/handlebars/runtime.js b/lib/handlebars/runtime.js
index 67a500d79..36bf6c94d 100644
--- a/lib/handlebars/runtime.js
+++ b/lib/handlebars/runtime.js
@@ -124,7 +124,7 @@ export function template(templateSpec, env) {
           loc: loc
         });
       }
-      return obj[name];
+      return container.lookupProperty(obj, name);
     },
     lookupProperty: function(parent, propertyName) {
       let result = parent[propertyName];
diff --git a/spec/security.js b/spec/security.js
index 2bc66f711..00eb1318b 100644
--- a/spec/security.js
+++ b/spec/security.js
@@ -298,6 +298,10 @@ describe('security issues', function() {
         checkProtoPropertyAccess({ compat: true });
       });
 
+      describe('in strict-mode', function() {
+        checkProtoPropertyAccess({ strict: true });
+      });
+
       function checkProtoPropertyAccess(compileOptions) {
         it('should be prohibited by default and log a warning', function() {
           var spy = sinon.spy(console, 'error');

From eb860c08998f8f506360d305d89e1f4b40f72a0a Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Mon, 15 Feb 2021 09:50:16 +0100
Subject: [PATCH 188/191] fix weird error in integration tests

somehow the variable "$i" gets overwritten in integration-testing/multi-nodejs-test/test.sh:20, which is why we now rename it to a more meaningful variable
---
 integration-testing/multi-nodejs-test/test.sh | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/integration-testing/multi-nodejs-test/test.sh b/integration-testing/multi-nodejs-test/test.sh
index 4dd6d05a8..d16361dfb 100755
--- a/integration-testing/multi-nodejs-test/test.sh
+++ b/integration-testing/multi-nodejs-test/test.sh
@@ -12,18 +12,20 @@ cd "$( dirname "$( readlink -f "$0" )" )" || exit 1
 # However, the built distribution should work with older NodeJS versions as well.
 # This test is simple by design. It merely ensures, that calling Handlebars does not fail with old versions.
 # It does (almost) not test for correctness, because that is already done in the mocha-tests.
-# And it does not use any NodeJS based testing framwork to make this part independent of the Node version.
+# And it does not use any NodeJS based testing framework to make this part independent of the Node version.
 
 unset npm_config_prefix
 
 echo "Handlebars should be able to run in various versions of NodeJS"
-for i in  0.10 0.12 4 5 6 7 8 9 10 11 12 13 ; do
+for node_version_to_test in 0.10 0.12 4 5 6 7 8 9 10 11 12 13 14 15; do
+
     rm target node_modules package-lock.json -rf
     mkdir target
-    nvm install "$i"
-    nvm exec "$i" npm install
-    nvm exec "$i" npm run test
-    nvm exec "$i" npm run test-precompile
+
+    nvm install "$node_version_to_test"
+    nvm exec "$node_version_to_test" npm install
+    nvm exec "$node_version_to_test" npm run test
+    nvm exec "$node_version_to_test" npm run test-precompile
 
     echo Success
 done

From 7d4d170ce46a53084a41920c5c7387c131357989 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Mon, 15 Feb 2021 09:59:41 +0100
Subject: [PATCH 189/191] disable IE in Saucelabs tests

The SauceLabs IE setup has problems and does not work
with the endpoints that we use to run them. This is a Saucelabs problem, but it has been there for a year now. Until we use another API, I will simply remove the browsers
---
 Gruntfile.js | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Gruntfile.js b/Gruntfile.js
index 528c0af82..ac9bf3f8d 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -177,19 +177,19 @@ module.exports = function(grunt) {
           concurrency: 4,
           browsers: [
             { browserName: 'chrome' },
-            { browserName: 'firefox', platform: 'Linux' },
+            { browserName: 'firefox', platform: 'Linux' }
             // {browserName: 'safari', version: 9, platform: 'OS X 10.11'},
             // {browserName: 'safari', version: 8, platform: 'OS X 10.10'},
-            {
-              browserName: 'internet explorer',
-              version: 11,
-              platform: 'Windows 8.1'
-            },
-            {
-              browserName: 'internet explorer',
-              version: 10,
-              platform: 'Windows 8'
-            }
+            // {
+            //   browserName: 'internet explorer',
+            //   version: 11,
+            //   platform: 'Windows 8.1'
+            // },
+            // {
+            //   browserName: 'internet explorer',
+            //   version: 10,
+            //   platform: 'Windows 8'
+            // }
           ]
         }
       },

From e66aed5b99c1b6c93564f37d627e34e5d60eb76e Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Mon, 15 Feb 2021 10:35:33 +0100
Subject: [PATCH 190/191] Update release notes

---
 release-notes.md | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/release-notes.md b/release-notes.md
index fa945d3a5..cabef32b1 100644
--- a/release-notes.md
+++ b/release-notes.md
@@ -2,7 +2,26 @@
 
 ## Development
 
-[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.6...master)
+[Commits](https://github.com/handlebars-lang/handlebars.js/compare/v4.7.7...master)
+
+## v4.7.7 - February 15th, 2021
+
+- fix weird error in integration tests - eb860c0
+- fix: check prototype property access in strict-mode (#1736) - b6d3de7
+- fix: escape property names in compat mode (#1736) - f058970
+- refactor: In spec tests, use expectTemplate over equals and shouldThrow (#1683) - 77825f8
+- chore: start testing on Node.js 12 and 13 - 3789a30
+
+(POSSIBLY) BREAKING CHANGES:
+
+- the changes from version [4.6.0](https://github.com/handlebars-lang/handlebars.js/blob/master/release-notes.md#v460---january-8th-2020) now also apply
+  in when using the compile-option "strict: true". Access to prototype properties is forbidden completely by default, specific properties or methods
+  can be allowed via runtime-options. See #1633 for details. If you are using Handlebars as documented, you should not be accessing prototype properties
+  from your template anyway, so the changes should not be a problem for you. Only the use of undocumented features can break your build.
+
+That is why we only bump the patch version despite mentioning breaking changes.
+
+[Commits](https://github.com/wycats/handlebars.js/compare/v4.7.6...v4.7.7)
 
 ## v4.7.6 - April 3rd, 2020
 

From a9a8e403213583ca90cb7c872d3a22796c37d961 Mon Sep 17 00:00:00 2001
From: Nils Knappmeier <npm@knappi.org>
Date: Mon, 15 Feb 2021 10:36:07 +0100
Subject: [PATCH 191/191] v4.7.7

---
 components/bower.json           | 2 +-
 components/handlebars.js.nuspec | 2 +-
 components/package.json         | 2 +-
 lib/handlebars/base.js          | 2 +-
 package.json                    | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/components/bower.json b/components/bower.json
index 788826d07..ad03dcc42 100644
--- a/components/bower.json
+++ b/components/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.6",
+  "version": "4.7.7",
   "main": "handlebars.js",
   "license": "MIT",
   "dependencies": {}
diff --git a/components/handlebars.js.nuspec b/components/handlebars.js.nuspec
index 4594e2512..8f82ec85c 100644
--- a/components/handlebars.js.nuspec
+++ b/components/handlebars.js.nuspec
@@ -2,7 +2,7 @@
 <package>
 	<metadata>
 		<id>handlebars.js</id>
-		<version>4.7.6</version>
+		<version>4.7.7</version>
 		<authors>handlebars.js Authors</authors>
 		<licenseUrl>https://github.com/wycats/handlebars.js/blob/master/LICENSE</licenseUrl>
 		<projectUrl>https://github.com/wycats/handlebars.js/</projectUrl>
diff --git a/components/package.json b/components/package.json
index ecb9960da..1f8e7309c 100644
--- a/components/package.json
+++ b/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "handlebars",
-  "version": "4.7.6",
+  "version": "4.7.7",
   "license": "MIT",
   "jspm": {
     "main": "handlebars",
diff --git a/lib/handlebars/base.js b/lib/handlebars/base.js
index 753c9a466..13bc32b07 100644
--- a/lib/handlebars/base.js
+++ b/lib/handlebars/base.js
@@ -5,7 +5,7 @@ import { registerDefaultDecorators } from './decorators';
 import logger from './logger';
 import { resetLoggedProperties } from './internal/proto-access';
 
-export const VERSION = '4.7.6';
+export const VERSION = '4.7.7';
 export const COMPILER_REVISION = 8;
 export const LAST_COMPATIBLE_COMPILER_REVISION = 7;
 
diff --git a/package.json b/package.json
index aa5c2dff6..ffeaf7d29 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "handlebars",
   "barename": "handlebars",
-  "version": "4.7.6",
+  "version": "4.7.7",
   "description": "Handlebars provides the power necessary to let you build semantic templates effectively with no frustration",
   "homepage": "http://www.handlebarsjs.com/",
   "keywords": [