From 2563b48311ae6be8957d8158d48d6d0e4bcb5f7a Mon Sep 17 00:00:00 2001
From: kiccer <1072907338@qq.com>
Date: Mon, 29 Nov 2021 15:44:32 +0800
Subject: [PATCH 01/20] docs(zh): fix wording (#1912)

---
 docs/zh/api/wrapper/setSelected.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/zh/api/wrapper/setSelected.md b/docs/zh/api/wrapper/setSelected.md
index 0bc042020..6241afe80 100644
--- a/docs/zh/api/wrapper/setSelected.md
+++ b/docs/zh/api/wrapper/setSelected.md
@@ -20,7 +20,7 @@ test('setSelected demo', async () => {
 
 - **注意：**
 
-当你尝试通过 `option.element.selected = true; arentSelect.trigger('input')` 经由 `v-model` 向 state 设置值的时候，`v-model` 不会被触发。`v-model` 是被 `change` 事件触发的。
+当你尝试通过 `option.element.selected = true; parentSelect.trigger('input')` 经由 `v-model` 向 state 设置值的时候，`v-model` 不会被触发。`v-model` 是被 `change` 事件触发的。
 
 `option.setSelected()` 是接下来这段代码的别名。
 

From f81292074ec461ef8740cc65918bafc5027575d1 Mon Sep 17 00:00:00 2001
From: Eugene Owak <13153526+geneowak@users.noreply.github.com>
Date: Mon, 29 Nov 2021 10:44:52 +0300
Subject: [PATCH 02/20] wrong assertion is used in the attachTo example (#1933)

---
 docs/api/options.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/api/options.md b/docs/api/options.md
index c2f31793b..3fa3b0548 100644
--- a/docs/api/options.md
+++ b/docs/api/options.md
@@ -317,13 +317,13 @@ const Component = {
 let wrapper = mount(Component, {
   attachTo: '#root'
 })
-expect(wrapper.vm.$el.parentNode).to.not.be.null
+expect(wrapper.vm.$el.parentNode).not.toBeNull()
 wrapper.destroy()
 
 wrapper = mount(Component, {
   attachTo: document.getElementById('root')
 })
-expect(wrapper.vm.$el.parentNode).to.not.be.null
+expect(wrapper.vm.$el.parentNode).not.toBeNull()
 wrapper.destroy()
 ```
 

From b1ce2fede42b63ac2eefae6e4ea9352b4da79817 Mon Sep 17 00:00:00 2001
From: "C.Y.Kun" <30518686+emojiiii@users.noreply.github.com>
Date: Tue, 30 Nov 2021 08:15:33 +0800
Subject: [PATCH 03/20] docs(wrapper-array): add is warning (#1920)

---
 docs/fr/api/wrapper-array/is.md | 17 +++++++++++++++++
 docs/ja/api/wrapper-array/is.md | 14 ++++++++++++++
 docs/zh/api/wrapper-array/is.md | 14 ++++++++++++++
 3 files changed, 45 insertions(+)

diff --git a/docs/fr/api/wrapper-array/is.md b/docs/fr/api/wrapper-array/is.md
index 465aecb37..1e29f32c3 100644
--- a/docs/fr/api/wrapper-array/is.md
+++ b/docs/fr/api/wrapper-array/is.md
@@ -1,5 +1,22 @@
 ## is
 
+::: warning Avertissement de déprédation
+L'utilisation de `is` pour affirmer que le nœud DOM est déprécié et sera supprimé.
+
+Considérez un appariement personnalisé tel que ceux fournis dans [jest-dom](https://github.com/testing-library/jest-dom#custom-matchers).
+ou pour l'assertion de type d'élément DOM, utilisez native [`Element.tagName`](https://developer.mozilla.org/en-US/docs/Web/API/Element/tagName) à la place.
+
+Pour conserver ces tests, un remplacement valable pour :
+
+- `is('DOM_SELECTOR')` est une affirmation de `wrapper.wrappers.every(wrapper => wrapper.element.tagName === 'DOM_SELECTOR')`.
+- `is('ATTR_NAME')` est une affirmation véridique d `wrapper.wrappers.every(wrapper => wrapper.attributes('ATTR_NAME'))`.
+- `is('CLASS_NAME')` est une affirmation véridique d `wrapper.wrappers.every(wrapper => wrapper.classes('CLASS_NAME'))`.
+
+L'affirmation contre la définition du composant n'est pas dépréciée
+
+En cas d'utilisation avec findComponent, accédez à l'élément DOM avec `findComponent(Comp).element`
+:::
+
 Affirmer que chaque `Wrapper` dans le noeud DOM `WrapperArray` ou `vm` correspond à [selector](../selectors.md).
 
 - **Arguments:**
diff --git a/docs/ja/api/wrapper-array/is.md b/docs/ja/api/wrapper-array/is.md
index faebaf85b..b1c5867c0 100644
--- a/docs/ja/api/wrapper-array/is.md
+++ b/docs/ja/api/wrapper-array/is.md
@@ -1,5 +1,19 @@
 ## is(selector)
 
+::: warning Deprecation warning
+`is` を使用して、 DOM ノードまたは `vm` がセレクタに一致することをアサートするのは非推奨となり、削除される予定です。
+
+[jest-dom](https://github.com/testing-library/jest-dom#custom-matchers) で提供されているようなカスタムマッチャの使用を検討してください。または、 DOM 要素などに対するアサーションには、代わりにネイティブの [Element.tagName](https://developer.mozilla.org/en-US/docs/Web/API/Element/tagName) を使用してください。
+
+テストを維持するためには、以下の置き換えが有効です。
+
+- `is('DOM_SELECTOR')` は `wrapper.wrappers.every(wrapper => wrapper.element.tagName === 'DOM_SELECTOR')` のアサーションです。
+- `is('ATTR_NAME')` は真に `wrapper.wrappers.every(wrapper => wrapper.attributes('ATTR_NAME'))` のアサーションです。
+- `is('CLASS_NAME')` は真に `wrapper.wrappers.every(wrapper => wrapper.classes('CLASS_NAME'))` のアサーションです。
+
+findComponent で使用する場合は、 `findComponent(Comp).element` で DOM 要素にアクセスします。
+:::
+
 `WrapperArray` の全ての `Wrapper` の DOM ノード、もしくは[セレクタ](../selectors.md)が `vm` とマッチするか検証します。
 
 - **引数:**
diff --git a/docs/zh/api/wrapper-array/is.md b/docs/zh/api/wrapper-array/is.md
index a4818f79f..690cacc63 100644
--- a/docs/zh/api/wrapper-array/is.md
+++ b/docs/zh/api/wrapper-array/is.md
@@ -1,5 +1,19 @@
 ## is
 
+::: warning 废弃警告
+使用 `is` 断言 DOM 结点或 `vm` 匹配选择器的方式已经被废弃并会被移除。
+
+可以考虑一个诸如 [jest-dom](https://github.com/testing-library/jest-dom#custom-matchers) 提供的自定义匹配。或为 DOM 元素类型断言换用原生的 [`Element.tagName`](https://developer.mozilla.org/en-US/docs/Web/API/Element/tagName)。
+
+为了保留这些测试，一个有效替换：
+
+- `is('DOM_SELECTOR')` 的方式是一个 `wrapper.wrappers.every(wrapper => wrapper.element.tagName === 'DOM_SELECTOR')` 的断言。
+- `is('ATTR_NAME')` 的方式是一个 `wrapper.wrappers.every(wrapper => wrapper.attributes('ATTR_NAME'))` 的 truthy 断言。
+- `is('CLASS_NAME')` 的方式是一个 `wrapper.wrappers.every(wrapper => wrapper.classes('CLASS_NAME'))` 的 truthy 断言。
+
+当使用 `findComponent` 时，通过 `findComponent(Comp).element` 访问 DOM 元素。
+:::
+
 断言 `WrapperArray` 的每个 `Wrapper` 的 DOM 节点或 `vm` 匹配[选择器](../selectors.md)。
 
 - **参数：**

From 343cbccaa60ccfd6e759044833c27e986e3bdb6d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=91=9B=E5=AE=B6=E7=81=BF?= <1175204449@qq.com>
Date: Sat, 22 Jan 2022 16:06:43 +0800
Subject: [PATCH 04/20] docs: fix a mistake in the demo 'Attach to DOM' (#1947)

---
 docs/zh/api/mount.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/zh/api/mount.md b/docs/zh/api/mount.md
index 20a06177d..ae9b8e08b 100644
--- a/docs/zh/api/mount.md
+++ b/docs/zh/api/mount.md
@@ -58,7 +58,7 @@ describe('Foo', () => {
     const div = document.createElement('div')
     document.body.appendChild(div)
     const wrapper = mount(Foo, {
-      attachTo: true
+      attachTo: div
     })
     expect(wrapper.contains('div')).toBe(true)
     wrapper.destroy()

From 4411dd826a2de856d8ece50d38a7c7cd9f1e3b0d Mon Sep 17 00:00:00 2001
From: Hirokazu Takatama <takatama@users.noreply.github.com>
Date: Sat, 22 Jan 2022 17:07:02 +0900
Subject: [PATCH 05/20] added Japanese translation about detecting styles
 (#1946)

Japanese translation about "Detecting Styles" of /docs/guids/common-tips.md
---
 docs/ja/guides/common-tips.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/ja/guides/common-tips.md b/docs/ja/guides/common-tips.md
index 588c6e181..040d184dc 100644
--- a/docs/ja/guides/common-tips.md
+++ b/docs/ja/guides/common-tips.md
@@ -151,3 +151,7 @@ mount(Component, {
 
 定義によるルーティングは、アプリケーションの全体的な構造と関連し、複数のコンポーネントが関係するため、統合テストまたはエンドツーエンドテストによってよくテストされます。
 `vue-router` 機能に依存する個々のコンポーネントについては、上記の手法を使ってモックすることができます。
+
+### スタイルの検知
+
+`jsdom`を使う場合、テスト対象として検知できるのはインラインで書かれたスタイルだけです。

From 84cf5596d717abced6d5993257e8cdd8f0917a7d Mon Sep 17 00:00:00 2001
From: JackLiR8 <45257542+JackLiR8@users.noreply.github.com>
Date: Sat, 22 Jan 2022 16:07:11 +0800
Subject: [PATCH 06/20] docs(zh): correct translation (#1942)

The translation of this sentence was a bit weird, I think it would be better to make a litte change here.
---
 docs/zh/api/wrapper/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/zh/api/wrapper/README.md b/docs/zh/api/wrapper/README.md
index 3995160f1..ddbfc97a8 100644
--- a/docs/zh/api/wrapper/README.md
+++ b/docs/zh/api/wrapper/README.md
@@ -2,7 +2,7 @@
 
 Vue Test Utils 是一个基于包裹器的 API。
 
-一个 `Wrapper` 是一个包括了一个挂载组件或 vnode，以及测试该组件或 vnode 的方法。
+`Wrapper` 是一个对象，该对象包含了一个挂载的组件或 vnode，以及测试该组件或 vnode 的方法。
 
 <div class="vueschool"><a href="https://vueschool.io/lessons/the-wrapper-object?friend=vuejs" target="_blank" rel="sponsored noopener" title="Learn about the Wrapper object in a FREE video lesson from Vue School">通过 Vue School 的免费视频学习 Wrapper 对象</a></div>
 

From caf55eb703dab00e41c4ad42c9d38f87369ecb98 Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 7 Feb 2022 15:31:11 +0800
Subject: [PATCH 07/20] chore: update installation and docs link [ci skip]

---
 README.md | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 3337fb328..0739930d9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Vue Test Utils [![Build Status](https://circleci.com/gh/vuejs/vue-test-utils/tree/dev.png?style=shield)](https://circleci.com/gh/vuejs/vue-test-utils)
 
-Vue Test Utils is the official testing library for Vue.js.
+Component testing utils for Vue 2.
 
 ## Packages
 
@@ -12,8 +12,8 @@ This repository provides the following two packages:
 You can install these packages by the following command.
 
 ```
-npm install --save-dev @vue/test-utils
-npm install --save-dev @vue/server-test-utils
+npm install --save-dev @vue/test-utils@1
+npm install --save-dev @vue/server-test-utils@1
 ```
 
 ## Peer Dependencies
@@ -26,7 +26,7 @@ npm install --save-dev vue-template-compiler
 
 ## Documentation
 
-Refer to the [documentation](https://vue-test-utils.vuejs.org/)
+Refer to the [documentation](https://v1.test-utils.vuejs.org/)
 
 ## Questions
 
@@ -34,7 +34,7 @@ For questions and support please use the [Discord chat room](https://vue-land.js
 
 ## Issues
 
-Please make sure to read the [Issue Reporting Checklist](https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md#issue-reporting-guidelines) before opening an issue. Issues not conforming to the guidelines may be closed immediately.
+Please make sure to read the issue reporting requirements before opening an issue. Issues not conforming to the guidelines may be closed immediately.
 
 ## Contribution
 

From c012a8739e7be32a87a601aa9771e6b639980955 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 22 Jul 2022 10:56:39 +1000
Subject: [PATCH 08/20] build(deps): bump log4js from 6.3.0 to 6.4.0 (#1953)

Bumps [log4js](https://github.com/log4js-node/log4js-node) from 6.3.0 to 6.4.0.
- [Release notes](https://github.com/log4js-node/log4js-node/releases)
- [Changelog](https://github.com/log4js-node/log4js-node/blob/master/CHANGELOG.md)
- [Commits](https://github.com/log4js-node/log4js-node/compare/v6.3.0...v6.4.0)

---
updated-dependencies:
- dependency-name: log4js
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 yarn.lock | 105 ++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 70 insertions(+), 35 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index 850f03eac..033bb199f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5048,15 +5048,10 @@ date-fns@^1.27.2:
   resolved "https://registry.yarnpkg.com/date-fns/-/date-fns-1.30.1.tgz#2e71bf0b119153dbb4cc4e88d9ea5acfb50dc05c"
   integrity sha512-hBSVCvSmWC+QypYObzwGOd9wqdDpOt+0wl0KbU+R+uuZBS1jN8VsD1ss3irQDknRj5NvxiTF6oj/nDRnN/UQNw==
 
-date-format@^2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/date-format/-/date-format-2.1.0.tgz#31d5b5ea211cf5fd764cd38baf9d033df7e125cf"
-  integrity sha512-bYQuGLeFxhkxNOF3rcMtiZxvCBAquGzZm6oWA1oZ0g2THUzivaRhv8uOhdr19LmoobSOLoIAxeUK2RdbM8IFTA==
-
-date-format@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/date-format/-/date-format-3.0.0.tgz#eb8780365c7d2b1511078fb491e6479780f3ad95"
-  integrity sha512-eyTcpKOcamdhWJXj56DpQMo1ylSQpcGtGKXcU0Tb97+K56/CF5amAqqqNj0+KvA0iw2ynxtHWFsPDSClCxe48w==
+date-format@^4.0.3:
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/date-format/-/date-format-4.0.3.tgz#f63de5dc08dc02efd8ef32bf2a6918e486f35873"
+  integrity sha512-7P3FyqDcfeznLZp2b+OMitV9Sz2lUnsT87WaTat9nVwqsBkTzPG3lPLNwW3en6F4pHUiWzr6vb8CLhjdK9bcxQ==
 
 date-now@^0.1.4:
   version "0.1.4"
@@ -5070,12 +5065,12 @@ de-indent@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/de-indent/-/de-indent-1.0.2.tgz#b2038e846dc33baa5796128d0804b455b8c1e21d"
 
-debug@*, debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@~4.1.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
-  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
+debug@*, debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.3.3:
+  version "4.3.3"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.3.tgz#04266e0b70a98d4462e6e288e38259213332b664"
+  integrity sha512-/zxw5+vh1Tfv+4Qn7a5nsbcJKPaSvCDhojn6FEl9vupwK2VCSDtEiEtqr8DFtzYFOdz63LBkxec7DYuc2jon6Q==
   dependencies:
-    ms "^2.1.1"
+    ms "2.1.2"
 
 debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8:
   version "2.6.9"
@@ -5096,6 +5091,13 @@ debug@^3.1.0, debug@^3.1.1, debug@^3.2.5:
   dependencies:
     ms "^2.1.1"
 
+debug@~4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+  integrity sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==
+  dependencies:
+    ms "^2.1.1"
+
 debuglog@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/debuglog/-/debuglog-1.0.1.tgz#aa24ffb9ac3df9a2351837cfb2d279360cd78492"
@@ -6366,11 +6368,16 @@ flat-cache@^2.0.1:
     rimraf "2.6.3"
     write "1.0.3"
 
-flatted@^2.0.0, flatted@^2.0.1, flatted@^2.0.2:
+flatted@^2.0.0, flatted@^2.0.2:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.2.tgz#4575b21e2bcee7434aa9be662f4b7b5f9c2b5138"
   integrity sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==
 
+flatted@^3.2.4:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.2.4.tgz#28d9969ea90661b5134259f312ab6aa7929ac5e2"
+  integrity sha512-8/sOawo8tJ4QOBX8YlQBMxL8+RLZfxMQOif9o0KUKTNTjMYElWPE0r/m5VNFxTRd0NSw8qSy8dajrwX4RYI1Hw==
+
 flow-bin@^0.131.0:
   version "0.131.0"
   resolved "https://registry.yarnpkg.com/flow-bin/-/flow-bin-0.131.0.tgz#d4228b6070afdf3b2a76acdee77a7f3f8e8f5133"
@@ -6454,6 +6461,15 @@ fs-extra@8.1.0, fs-extra@^8.1.0:
     jsonfile "^4.0.0"
     universalify "^0.1.0"
 
+fs-extra@^10.0.0:
+  version "10.0.0"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-10.0.0.tgz#9ff61b655dde53fb34a82df84bb214ce802e17c1"
+  integrity sha512-C5owb14u9eJwizKGdchcDUQeFtlSHHthBk8pbX9Vc1PFZrLombudjDnNns88aYslCyF6IY5SUw3Roz6xShcEIQ==
+  dependencies:
+    graceful-fs "^4.2.0"
+    jsonfile "^6.0.1"
+    universalify "^2.0.0"
+
 fs-extra@^4.0.2:
   version "4.0.3"
   resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-4.0.3.tgz#0d852122e5bc5beb453fb028e9c0c9bf36340c94"
@@ -6838,11 +6854,16 @@ got@^9.6.0:
     to-readable-stream "^1.0.0"
     url-parse-lax "^3.0.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.1.6, graceful-fs@^4.2.0, graceful-fs@^4.2.2, graceful-fs@^4.2.4:
+graceful-fs@^4.1.11, graceful-fs@^4.1.15, graceful-fs@^4.1.2, graceful-fs@^4.1.3, graceful-fs@^4.2.2, graceful-fs@^4.2.4:
   version "4.2.4"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.4.tgz#2256bde14d3632958c465ebc96dc467ca07a29fb"
   integrity sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==
 
+graceful-fs@^4.1.6, graceful-fs@^4.2.0:
+  version "4.2.9"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.9.tgz#041b05df45755e587a24942279b9d113146e1c96"
+  integrity sha512-NtNxqUcXgpW2iMrfqSfR73Glt39K+BLwWsPs94yR63v45T0Wbej7eRmL5cWfwEgqXnmjQp3zaJTshdRW/qC2ZQ==
+
 gray-matter@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.1.tgz#375263c194f0d9755578c277e41b1c1dfdf22c7d"
@@ -8508,6 +8529,15 @@ jsonfile@^4.0.0:
   optionalDependencies:
     graceful-fs "^4.1.6"
 
+jsonfile@^6.0.1:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-6.1.0.tgz#bc55b2634793c679ec6403094eb13698a6ec0aae"
+  integrity sha512-5dgndWOriYSm5cnYaJNhalLNDKOqFwyDB/rr1E9ZsGciGvKPs8R2xYGCacuf3z6K1YKDz182fd+fY3cn3pMqXQ==
+  dependencies:
+    universalify "^2.0.0"
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 jsonparse@^1.2.0:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/jsonparse/-/jsonparse-1.3.1.tgz#3f4dae4a91fac315f71062f8521cc239f1366280"
@@ -8951,15 +8981,15 @@ log-update@^2.3.0:
     wrap-ansi "^3.0.1"
 
 log4js@^6.2.1:
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/log4js/-/log4js-6.3.0.tgz#10dfafbb434351a3e30277a00b9879446f715bcb"
-  integrity sha512-Mc8jNuSFImQUIateBFwdOQcmC6Q5maU0VVvdC2R6XMb66/VnT+7WS4D/0EeNMZu1YODmJe5NIn2XftCzEocUgw==
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/log4js/-/log4js-6.4.0.tgz#3f63ccfc8033c83cd617a4d2d50e48be5944eae9"
+  integrity sha512-ysc/XUecZJuN8NoKOssk3V0cQ29xY4fra6fnigZa5VwxFsCsvdqsdnEuAxNN89LlHpbE4KUD3zGcn+kFqonSVQ==
   dependencies:
-    date-format "^3.0.0"
-    debug "^4.1.1"
-    flatted "^2.0.1"
-    rfdc "^1.1.4"
-    streamroller "^2.2.4"
+    date-format "^4.0.3"
+    debug "^4.3.3"
+    flatted "^3.2.4"
+    rfdc "^1.3.0"
+    streamroller "^3.0.2"
 
 loglevel@^1.6.8:
   version "1.6.8"
@@ -9478,7 +9508,7 @@ ms@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@^2.0.0:
+ms@2.1.2, ms@^2.0.0:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
@@ -11584,10 +11614,10 @@ reusify@^1.0.0:
   resolved "https://registry.yarnpkg.com/reusify/-/reusify-1.0.4.tgz#90da382b1e126efc02146e90845a88db12925d76"
   integrity sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==
 
-rfdc@^1.1.4:
-  version "1.1.4"
-  resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.1.4.tgz#ba72cc1367a0ccd9cf81a870b3b58bd3ad07f8c2"
-  integrity sha512-5C9HXdzK8EAqN7JDif30jqsBzavB7wLpaubisuQIGHWf2gUXSpzy6ArX/+Da8RjFpagWsCn+pIgxTMAmKw9Zug==
+rfdc@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/rfdc/-/rfdc-1.3.0.tgz#d0b7c441ab2720d05dc4cf26e01c89631d9da08b"
+  integrity sha512-V2hovdzFbOi77/WajaSMXk2OLm+xNIeQdMMuB7icj7bk6zi2F8GGAxigcnDFpJHbNyNcgyJDiP+8nOrY5cZGrA==
 
 rgb-regex@^1.0.1:
   version "1.0.1"
@@ -12364,14 +12394,14 @@ stream-shift@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/stream-shift/-/stream-shift-1.0.0.tgz#d5c752825e5367e786f78e18e445ea223a155952"
 
-streamroller@^2.2.4:
-  version "2.2.4"
-  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-2.2.4.tgz#c198ced42db94086a6193608187ce80a5f2b0e53"
-  integrity sha512-OG79qm3AujAM9ImoqgWEY1xG4HX+Lw+yY6qZj9R1K2mhF5bEmQ849wvrb+4vt4jLMLzwXttJlQbOdPOQVRv7DQ==
+streamroller@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/streamroller/-/streamroller-3.0.2.tgz#30418d0eee3d6c93ec897f892ed098e3a81e68b7"
+  integrity sha512-ur6y5S5dopOaRXBuRIZ1u6GC5bcEXHRZKgfBjfCglMhmIf+roVCECjvkEYzNQOXIN2/JPnkMPW/8B3CZoKaEPA==
   dependencies:
-    date-format "^2.1.0"
+    date-format "^4.0.3"
     debug "^4.1.1"
-    fs-extra "^8.1.0"
+    fs-extra "^10.0.0"
 
 strict-uri-encode@^1.0.0:
   version "1.1.0"
@@ -13225,6 +13255,11 @@ universalify@^0.1.0:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.1.tgz#fa71badd4437af4c148841e3b3b165f9e9e590b7"
 
+universalify@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-2.0.0.tgz#75a4984efedc4b08975c5aeb73f530d02df25717"
+  integrity sha512-hAZsKq7Yy11Zu1DE0OzWjw7nnLZmJZYTDZZyEFHZdUhV8FkH5MCfoU1XMaxXovpyW5nq5scPqq0ZDP9Zyl04oQ==
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"

From b59bb04fa37cd00a3c34a9d766270fe378f847f8 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 22 Jul 2022 10:56:50 +1000
Subject: [PATCH 09/20] build(deps): bump prismjs from 1.24.0 to 1.27.0 (#1964)

Bumps [prismjs](https://github.com/PrismJS/prism) from 1.24.0 to 1.27.0.
- [Release notes](https://github.com/PrismJS/prism/releases)
- [Changelog](https://github.com/PrismJS/prism/blob/master/CHANGELOG.md)
- [Commits](https://github.com/PrismJS/prism/compare/v1.24.0...v1.27.0)

---
updated-dependencies:
- dependency-name: prismjs
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 yarn.lock | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/yarn.lock b/yarn.lock
index 033bb199f..3ff2af80f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10883,9 +10883,9 @@ pretty@^2.0.0:
     js-beautify "^1.6.12"
 
 prismjs@^1.13.0:
-  version "1.24.0"
-  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.24.0.tgz#0409c30068a6c52c89ef7f1089b3ca4de56be2ac"
-  integrity sha512-SqV5GRsNqnzCL8k5dfAjCNhUrF3pR0A9lTDSCUZeh/LIshheXJEaP0hwLz2t4XHivd2J/v2HR+gRnigzeKe3cQ==
+  version "1.27.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.27.0.tgz#bb6ee3138a0b438a3653dd4d6ce0cc6510a45057"
+  integrity sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==
 
 process-nextick-args@~2.0.0:
   version "2.0.1"

From b9fec4d860d9ee10f3b5e4e2e42412e09dc8b300 Mon Sep 17 00:00:00 2001
From: Anton Chukanov <aichukanov@users.noreply.github.com>
Date: Fri, 22 Jul 2022 03:57:22 +0300
Subject: [PATCH 10/20] Update README.md (#1976)

---
 docs/ru/README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/ru/README.md b/docs/ru/README.md
index 0f42207b8..eaa9b4e90 100644
--- a/docs/ru/README.md
+++ b/docs/ru/README.md
@@ -2,7 +2,7 @@
 
 Vue Test Utils — официальная библиотека модульного тестирования для Vue.js.
 
-- [сборка](installation/)
+- [Сборка](installation/)
   - [Чем запускать тесты](installation/choosing-a-test-runner.md)
   - [Тестирование однофайловых компонентов с Jest](installation/testing-single-file-components-with-jest.md)
   - [Тестирование однофайловых компонентов с Mocha + webpack](installation/testing-single-file-components-with-mocha-webpack.md)

From 555d37739ff931e564cab17abee702def53938c9 Mon Sep 17 00:00:00 2001
From: czk694253817 <694253817@qq.com>
Date: Fri, 22 Jul 2022 08:57:45 +0800
Subject: [PATCH 11/20] docs: Update render.md (#1968)

Text cannot be used in actual use. It can be used normally only by replacing it with HTML
---
 docs/zh/api/render.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/zh/api/render.md b/docs/zh/api/render.md
index 8ec5a9569..2fbfeefcf 100644
--- a/docs/zh/api/render.md
+++ b/docs/zh/api/render.md
@@ -38,7 +38,7 @@ import Foo from './Foo.vue'
 describe('Foo', () => {
   it('renders a div', async () => {
     const wrapper = await render(Foo)
-    expect(wrapper.text()).toContain('<div></div>')
+    expect(wrapper.html()).toContain('<div></div>')
   })
 })
 ```
@@ -56,7 +56,7 @@ describe('Foo', () => {
         color: 'red'
       }
     })
-    expect(wrapper.text()).toContain('red')
+    expect(wrapper.html()).toContain('red')
   })
 })
 ```
@@ -78,7 +78,7 @@ describe('Foo', () => {
         foo: '<div />'
       }
     })
-    expect(wrapper.text()).toContain('<div></div>')
+    expect(wrapper.html()).toContain('<div></div>')
   })
 })
 ```
@@ -97,7 +97,7 @@ describe('Foo', () => {
         $route
       }
     })
-    expect(wrapper.text()).toContain($route.path)
+    expect(wrapper.html()).toContain($route.path)
   })
 })
 ```

From 9648c3fa5e51fb3f8263f87b38e014e6c3e0b596 Mon Sep 17 00:00:00 2001
From: Oliver Dvorski <oliver.dvorski@gmail.com>
Date: Fri, 22 Jul 2022 02:58:02 +0200
Subject: [PATCH 12/20] docs: Fix typos and add clarity (#1959)

---
 docs/api/wrapper/findComponent.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/api/wrapper/findComponent.md b/docs/api/wrapper/findComponent.md
index febbb41e3..99172e98f 100644
--- a/docs/api/wrapper/findComponent.md
+++ b/docs/api/wrapper/findComponent.md
@@ -26,7 +26,7 @@ expect(barRef.exists()).toBe(true)
 ```
 
 ::: warning Usage with CSS selectors
-Using `findAllComponents` with CSS selector might have confusing behavior
+Using `findComponent` with a CSS selector might have confusing behavior
 
 Consider this example:
 
@@ -50,5 +50,5 @@ const childByCss = wrapper.findComponent('.child')
 expect(childByCss.vm.$options.name).toBe('Root') // => still Root
 ```
 
-The reason for such behavior is that `RootComponent` and `ChildComponent` are sharing same DOM node and only first matching component is included for each unique DOM node
+The reason for such behavior is that `RootComponent` and `ChildComponent` are sharing the same DOM node and only the first matching component is returned for each unique DOM node
 :::

From a9dace1f016322da0311ecedda775bda44564e65 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=8E=8B=E7=84=95=E5=AE=87?= <why490078184@gmail.com>
Date: Fri, 22 Jul 2022 09:03:32 +0800
Subject: [PATCH 13/20] docs: modify the wrong Chinese word (#1922)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

"阀值" is a wrong word in Chinese, "阈值" should be used here

Co-authored-by: Lachlan Miller <lachlan.miller.1990@outlook.com>
---
 .../zh/installation/testing-single-file-components-with-jest.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/zh/installation/testing-single-file-components-with-jest.md b/docs/zh/installation/testing-single-file-components-with-jest.md
index e68c8b020..c58cbb6cb 100644
--- a/docs/zh/installation/testing-single-file-components-with-jest.md
+++ b/docs/zh/installation/testing-single-file-components-with-jest.md
@@ -161,7 +161,7 @@ Jest 可以被用来生成多种格式的测试覆盖率报告。以下是一个
 }
 ```
 
-更多文档内容请移步至 [Jest 配置文档](https://jestjs.io/docs/zh-Hans/configuration#collectcoverage-boolean)，在那里你可以找到覆盖率阀值、目标输出目录等选项。
+更多文档内容请移步至 [Jest 配置文档](https://jestjs.io/docs/zh-Hans/configuration#collectcoverage-boolean)，在那里你可以找到覆盖率阈值、目标输出目录等选项。
 
 ### 测试规范示例
 

From b253affa5043f4087e59e7d7fc8e4c26c49a9c13 Mon Sep 17 00:00:00 2001
From: Lachlan Miller <lachlan.miller.1990@outlook.com>
Date: Fri, 22 Jul 2022 11:03:54 +1000
Subject: [PATCH 14/20] chore: remove compat for nw (#1986)

---
 .circleci/config.yml | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index b85fddcd9..0f0bee0c4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -60,13 +60,6 @@ jobs:
       - run:
           name: yarn test
           command: yarn test
-  test_compat:
-    <<: *defaults
-    steps:
-      - attach_workspace:
-          at: ~/repo
-      - *restore_node_modules
-      - run: yarn test:compat
 workflows:
   version: 2
   install-tests:
@@ -81,8 +74,3 @@ workflows:
       - test:
           requires:
             - install
-      - test_compat:
-          requires:
-            - install
-            - build_test
-            - test

From c6d28efc858731cd7a0504606017d7920c7f2df9 Mon Sep 17 00:00:00 2001
From: Yuyao Nie <nieyuyao0826@hotmail.com>
Date: Wed, 3 Aug 2022 09:07:35 +0800
Subject: [PATCH 15/20] build: add esm bundle (#1990)

* build: add esm bundle

* build: add the exports to package.json
---
 packages/test-utils/package.json     | 10 ++++++++++
 packages/test-utils/scripts/build.js |  9 +++++++++
 2 files changed, 19 insertions(+)

diff --git a/packages/test-utils/package.json b/packages/test-utils/package.json
index 50eaf671d..cdc7f06fa 100644
--- a/packages/test-utils/package.json
+++ b/packages/test-utils/package.json
@@ -3,6 +3,16 @@
   "version": "1.3.0",
   "description": "Utilities for testing Vue components.",
   "main": "dist/vue-test-utils.js",
+  "module": "dist/vue-test-utils.esm.js",
+  "exports": {
+    ".": {
+      "import": {
+        "node": "./dist/vue-test-utils.js",
+        "require": "./dist/vue-test-utils.js",
+        "default": "./dist/vue-test-utils.esm.js"
+      }
+    }
+  },
   "types": "types/index.d.ts",
   "files": [
     "dist/*.js",
diff --git a/packages/test-utils/scripts/build.js b/packages/test-utils/scripts/build.js
index 36efd78c3..43639a91e 100644
--- a/packages/test-utils/scripts/build.js
+++ b/packages/test-utils/scripts/build.js
@@ -31,6 +31,15 @@ const rollupOptionsBuild = [
       'vue-template-compiler': 'VueTemplateCompiler'
     }
   },
+  {
+    file: 'dist/vue-test-utils.esm.js',
+    format: 'esm',
+    name: 'VueTestUtils',
+    globals: {
+      vue: 'Vue',
+      'vue-template-compiler': 'VueTemplateCompiler'
+    }
+  },
   {
     file: 'dist/vue-test-utils.umd.js',
     format: 'umd',

From b9c4870f8463cb30137d6856a2115d3af96e203b Mon Sep 17 00:00:00 2001
From: Matthew Lieder <lieder_matthew@hotmail.com>
Date: Sun, 30 Oct 2022 20:56:49 -0500
Subject: [PATCH 16/20] feat: make isVisible more comprehensive (backport from
 v2) (fix #1456) (#2013)

* feat: make isVisible more comprehensive (backport from v2)

* feat: make isVisible more comprehensive (backport from v2)
---
 packages/shared/is-visible.js        | 10 +++++++++-
 test/specs/wrapper/isVisible.spec.js | 15 +++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/packages/shared/is-visible.js b/packages/shared/is-visible.js
index 3f9030151..a7d52f379 100644
--- a/packages/shared/is-visible.js
+++ b/packages/shared/is-visible.js
@@ -5,7 +5,15 @@
  */
 
 function isStyleVisible(element) {
-  const { display, visibility, opacity } = element.style
+  if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+    return false
+  }
+
+  // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+  // getComputedStyle should only work with connected elements.
+  const { display, visibility, opacity } = element.isConnected
+    ? getComputedStyle(element)
+    : element.style
   return (
     display !== 'none' &&
     visibility !== 'hidden' &&
diff --git a/test/specs/wrapper/isVisible.spec.js b/test/specs/wrapper/isVisible.spec.js
index 9c6b0478d..bd6708771 100644
--- a/test/specs/wrapper/isVisible.spec.js
+++ b/test/specs/wrapper/isVisible.spec.js
@@ -176,4 +176,19 @@ describeWithShallowAndMount('isVisible', mountingMethod => {
 
     expect(wrapper.find('.child.ready').isVisible()).toEqual(true)
   })
+
+  it('returns false if element has class with opacity: 0', async () => {
+    const style = document.createElement('style')
+    style.type = 'text/css'
+    document.head.appendChild(style)
+    style.sheet.insertRule('.opacity-0 { opacity: 0; }')
+
+    const compiled = compileToFunctions('<div id="my-div" class="opacity-0" />')
+    const wrapper = mountingMethod(compiled, {
+      attachTo: document.body
+    })
+    expect(wrapper.get('#my-div').isVisible()).toBe(false)
+
+    document.head.removeChild(style)
+  })
 })

From 2748114b52f071b910e171e40683663d98f0ed0f Mon Sep 17 00:00:00 2001
From: freakzlike <freakzlike@gmail.com>
Date: Mon, 31 Oct 2022 02:57:57 +0100
Subject: [PATCH 17/20] docs: Fix urls to test-utils v2 (#2019)

---
 docs/.vuepress/config.js        | 21 ++++++++++-----------
 docs/.vuepress/theme/Layout.vue |  2 +-
 docs/README.md                  |  2 +-
 docs/fr/README.md               |  2 +-
 docs/zh/README.md               |  2 +-
 5 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index ce06a350a..350d19781 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -59,8 +59,8 @@ module.exports = {
             link: '/guides/',
             items: [
               {
-                text: '2.x-beta',
-                link: 'https://next.vue-test-utils.vuejs.org/guide/'
+                text: 'v2 (Vue.js 3)',
+                link: 'https://test-utils.vuejs.org/'
               }
             ]
           },
@@ -94,8 +94,8 @@ module.exports = {
             link: '/zh/guides/',
             items: [
               {
-                text: '2.x-beta',
-                link: 'https://next.vue-test-utils.vuejs.org/guide/'
+                text: 'v2 (Vue.js 3)',
+                link: 'https://test-utils.vuejs.org/'
               }
             ]
           }
@@ -125,8 +125,8 @@ module.exports = {
             link: '/ja/guides/',
             items: [
               {
-                text: '2.x-beta',
-                link: 'https://next.vue-test-utils.vuejs.org/guide/'
+                text: 'v2 (Vue.js 3)',
+                link: 'https://test-utils.vuejs.org/'
               }
             ]
           }
@@ -156,8 +156,8 @@ module.exports = {
             link: '/ru/guides/',
             items: [
               {
-                text: '2.x-beta',
-                link: 'https://next.vue-test-utils.vuejs.org/guide/'
+                text: 'v2 (Vue.js 3)',
+                link: 'https://test-utils.vuejs.org/'
               }
             ]
           }
@@ -187,9 +187,8 @@ module.exports = {
             link: '/fr/guides/',
             items: [
               {
-                text: '2.x-beta',
-                link:
-                  'https://vuejs.github.io/vue-test-utils-next-docs/guide/introduction.html'
+                text: 'v2 (Vue.js 3)',
+                link: 'https://test-utils.vuejs.org/'
               }
             ]
           }
diff --git a/docs/.vuepress/theme/Layout.vue b/docs/.vuepress/theme/Layout.vue
index b61309914..5e1811726 100644
--- a/docs/.vuepress/theme/Layout.vue
+++ b/docs/.vuepress/theme/Layout.vue
@@ -10,7 +10,7 @@
           <p>
             To read docs for Vue Test Utils for Vue 3,
             <a
-              href="https://next.vue-test-utils.vuejs.org/guide/"
+              href="https://test-utils.vuejs.org/"
               v-text="'click here'"
             />.
           </p>
diff --git a/docs/README.md b/docs/README.md
index 699d140c6..38f144a64 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,7 +7,7 @@ This is the documentation for Vue Test Utils v1, which targets Vue 2 and earlier
 In short:
 
 - [Vue Test Utils 1](https://github.com/vuejs/vue-test-utils/) targets [Vue 2](https://github.com/vuejs/vue/).
-- [Vue Test Utils 2](https://github.com/vuejs/vue-test-utils-next/) targets [Vue 3](https://github.com/vuejs/vue-next/).
+- [Vue Test Utils 2](https://github.com/vuejs/test-utils) targets [Vue 3](https://github.com/vuejs/core).
 
 <div class="vueschool"><a href="https://vueschool.io/courses/learn-how-to-test-vuejs-components?friend=vuejs" target="_blank" rel="sponsored noopener" title="Learn how to use Vue Test Utils to test Vue.js Components with Vue School">Learn how to test Vue.js components with Vue School</a></div>
 
diff --git a/docs/fr/README.md b/docs/fr/README.md
index 0a348e614..f980223a3 100644
--- a/docs/fr/README.md
+++ b/docs/fr/README.md
@@ -7,7 +7,7 @@ Voici la documentation de Vue Test Utils v1, qui vise Vue 2 et les versions ant
 En bref :
 
 - [Vue Test Utils 1](https://github.com/vuejs/vue-test-utils/) ciblant [Vue 2](https://github.com/vuejs/vue/).
-- [Vue Test Utils 2](https://github.com/vuejs/vue-test-utils-next/) ciblant [Vue 3](https://github.com/vuejs/vue-next/).
+- [Vue Test Utils 2](https://github.com/vuejs/test-utils) ciblant [Vue 3](https://github.com/vuejs/core).
 
   <div class="vueschool"><a href="https://vueschool.io/courses/learn-how-to-test-vuejs-components?friend=vuejs" target="_blank" rel="sponsored noopener" title="Learn how to use Vue Test Utils to test Vue.js Components with Vue School">Apprenez comment tester les composants de Vue.js avec Vue School</a></div>
 
diff --git a/docs/zh/README.md b/docs/zh/README.md
index a25af9dd8..784257bd2 100644
--- a/docs/zh/README.md
+++ b/docs/zh/README.md
@@ -1,7 +1,7 @@
 # 介绍
 
 ::: warning
-本文档基于 Vue2.x，新版本文档请移步至[这里](https://next.vue-test-utils.vuejs.org/guide/)
+本文档基于 Vue2.x，新版本文档请移步至[这里](https://test-utils.vuejs.org/)
 :::
 
 Vue Test Utils 是 Vue.js 官方的单元测试实用工具库。

From 2c0c6ed23ff736cab543875ebf7ba441150fa7f7 Mon Sep 17 00:00:00 2001
From: Mark Noonan <mark@cypress.io>
Date: Sun, 30 Oct 2022 21:58:04 -0400
Subject: [PATCH 18/20] Fix link to `findComponent` (#2016)

Wandered into a 404 when following some curiosity today.
---
 docs/api/wrapper/findAllComponents.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/api/wrapper/findAllComponents.md b/docs/api/wrapper/findAllComponents.md
index 041f4ff68..55eb6785e 100644
--- a/docs/api/wrapper/findAllComponents.md
+++ b/docs/api/wrapper/findAllComponents.md
@@ -23,5 +23,5 @@ expect(bars).toHaveLength(1)
 ```
 
 ::: warning Usage with CSS selectors
-Using `findAllComponents` with CSS selector is subject to same limitations as [findComponent](api/wrapper/findComponent.md)
+Using `findAllComponents` with CSS selector is subject to same limitations as [findComponent](./findComponent.md)
 :::

From 6d4b350af6af8dca41b03e4fad0c83dcf2fb87b9 Mon Sep 17 00:00:00 2001
From: Lachlan Miller <lachlan.miller.1990@outlook.com>
Date: Mon, 31 Oct 2022 15:16:13 +1000
Subject: [PATCH 19/20] chore: fix linting and export types

---
 docs/.vuepress/theme/Layout.vue      | 5 +----
 packages/test-utils/types/index.d.ts | 6 ++++--
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/docs/.vuepress/theme/Layout.vue b/docs/.vuepress/theme/Layout.vue
index 5e1811726..dc1a028a7 100644
--- a/docs/.vuepress/theme/Layout.vue
+++ b/docs/.vuepress/theme/Layout.vue
@@ -9,10 +9,7 @@
           </p>
           <p>
             To read docs for Vue Test Utils for Vue 3,
-            <a
-              href="https://test-utils.vuejs.org/"
-              v-text="'click here'"
-            />.
+            <a href="https://test-utils.vuejs.org/" v-text="'click here'" />.
           </p>
         </div>
       </div>
diff --git a/packages/test-utils/types/index.d.ts b/packages/test-utils/types/index.d.ts
index cc1556557..9f10c1bda 100644
--- a/packages/test-utils/types/index.d.ts
+++ b/packages/test-utils/types/index.d.ts
@@ -1,7 +1,9 @@
 import Vue, { VNodeData, ComponentOptions, FunctionalComponentOptions, Component, RenderContext } from 'vue'
-import { DefaultProps, PropsDefinition } from 'vue/types/options'
+import { PropsDefinition } from 'vue/types/options'
 import { ExtendedVue, CombinedVueInstance } from 'vue/types/vue'
 
+type DefaultProps = Record<string, any>;
+
 /**
  * Utility type to declare an extended Vue constructor
  */
@@ -174,7 +176,7 @@ interface FunctionalComponentShallowMountOptions<V extends Vue> extends ShallowM
   context?: Partial<RenderContext>
 }
 
-interface VueTestUtilsConfigOptions {
+export interface VueTestUtilsConfigOptions {
   stubs: Record<string, Component | boolean | string>
   mocks: Record<string, any>
   methods: Record<string, Function>

From 76c63fab1b4e3f58c1ad41142d0e0b0f3ff3adea Mon Sep 17 00:00:00 2001
From: Lachlan Miller <lachlan.miller.1990@outlook.com>
Date: Mon, 31 Oct 2022 15:44:22 +1000
Subject: [PATCH 20/20] chore: publish 1.3.1

---
 lerna.json                                    |     2 +-
 .../dist/vue-server-test-utils.js             |    10 +-
 packages/server-test-utils/package.json       |     2 +-
 .../test-utils/dist/vue-test-utils.esm.js     | 14140 ++++++++++++++++
 .../test-utils/dist/vue-test-utils.iife.js    |    10 +-
 packages/test-utils/dist/vue-test-utils.js    |    10 +-
 .../test-utils/dist/vue-test-utils.umd.js     |    10 +-
 packages/test-utils/package.json              |     2 +-
 8 files changed, 14179 insertions(+), 7 deletions(-)
 create mode 100644 packages/test-utils/dist/vue-test-utils.esm.js

diff --git a/lerna.json b/lerna.json
index f7fbb9786..b5fecedef 100644
--- a/lerna.json
+++ b/lerna.json
@@ -5,5 +5,5 @@
   ],
   "npmClient": "yarn",
   "useWorkspaces": true,
-  "version": "1.3.0"
+  "version": "1.3.1"
 }
diff --git a/packages/server-test-utils/dist/vue-server-test-utils.js b/packages/server-test-utils/dist/vue-server-test-utils.js
index 65f9d2612..4190a0872 100644
--- a/packages/server-test-utils/dist/vue-server-test-utils.js
+++ b/packages/server-test-utils/dist/vue-server-test-utils.js
@@ -8084,7 +8084,15 @@ ErrorWrapper.prototype.destroy = function destroy () {
  */
 
 function isStyleVisible(element) {
-  var ref = element.style;
+  if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+    return false
+  }
+
+  // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+  // getComputedStyle should only work with connected elements.
+  var ref = element.isConnected
+    ? getComputedStyle(element)
+    : element.style;
   var display = ref.display;
   var visibility = ref.visibility;
   var opacity = ref.opacity;
diff --git a/packages/server-test-utils/package.json b/packages/server-test-utils/package.json
index 8338263f2..cf498f0c3 100644
--- a/packages/server-test-utils/package.json
+++ b/packages/server-test-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vue/server-test-utils",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Utilities for testing Vue components.",
   "main": "dist/vue-server-test-utils.js",
   "types": "types/index.d.ts",
diff --git a/packages/test-utils/dist/vue-test-utils.esm.js b/packages/test-utils/dist/vue-test-utils.esm.js
new file mode 100644
index 000000000..ec5ae5f13
--- /dev/null
+++ b/packages/test-utils/dist/vue-test-utils.esm.js
@@ -0,0 +1,14140 @@
+import Vue from 'vue';
+import { compileToFunctions } from 'vue-template-compiler';
+
+// 
+
+function createVNodes(vm, slotValue, name) {
+  var el = compileToFunctions(
+    ("<div><template slot=" + name + ">" + slotValue + "</template></div>")
+  );
+  var _staticRenderFns = vm._renderProxy.$options.staticRenderFns;
+  var _staticTrees = vm._renderProxy._staticTrees;
+  vm._renderProxy._staticTrees = [];
+  vm._renderProxy.$options.staticRenderFns = el.staticRenderFns;
+  var vnode = el.render.call(vm._renderProxy, vm.$createElement);
+  vm._renderProxy.$options.staticRenderFns = _staticRenderFns;
+  vm._renderProxy._staticTrees = _staticTrees;
+  return vnode.children[0]
+}
+
+function createVNodesForSlot(
+  vm,
+  slotValue,
+  name
+) {
+  if (typeof slotValue === 'string') {
+    return createVNodes(vm, slotValue, name)
+  }
+  var vnode = vm.$createElement(slotValue)
+  ;(vnode.data || (vnode.data = {})).slot = name;
+  return vnode
+}
+
+function createSlotVNodes(
+  vm,
+  slots
+) {
+  return Object.keys(slots).reduce(function (acc, key) {
+    var content = slots[key];
+    if (Array.isArray(content)) {
+      var nodes = content.map(function (slotDef) { return createVNodesForSlot(vm, slotDef, key); }
+      );
+      return acc.concat(nodes)
+    }
+
+    return acc.concat(createVNodesForSlot(vm, content, key))
+  }, [])
+}
+
+var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
+
+function createCommonjsModule(fn, basedir, module) {
+	return module = {
+	  path: basedir,
+	  exports: {},
+	  require: function (path, base) {
+      return commonjsRequire(path, (base === undefined || base === null) ? module.path : base);
+    }
+	}, fn(module, module.exports), module.exports;
+}
+
+function getCjsExportFromNamespace (n) {
+	return n && n['default'] || n;
+}
+
+function commonjsRequire () {
+	throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');
+}
+
+var semver = createCommonjsModule(function (module, exports) {
+exports = module.exports = SemVer;
+
+var debug;
+/* istanbul ignore next */
+if (typeof process === 'object' &&
+    process.env &&
+    process.env.NODE_DEBUG &&
+    /\bsemver\b/i.test(process.env.NODE_DEBUG)) {
+  debug = function () {
+    var args = Array.prototype.slice.call(arguments, 0);
+    args.unshift('SEMVER');
+    console.log.apply(console, args);
+  };
+} else {
+  debug = function () {};
+}
+
+// Note: this is the semver.org version of the spec that it implements
+// Not necessarily the package version of this code.
+exports.SEMVER_SPEC_VERSION = '2.0.0';
+
+var MAX_LENGTH = 256;
+var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||
+  /* istanbul ignore next */ 9007199254740991;
+
+// Max safe segment length for coercion.
+var MAX_SAFE_COMPONENT_LENGTH = 16;
+
+// The actual regexps go on exports.re
+var re = exports.re = [];
+var src = exports.src = [];
+var t = exports.tokens = {};
+var R = 0;
+
+function tok (n) {
+  t[n] = R++;
+}
+
+// The following Regular Expressions can be used for tokenizing,
+// validating, and parsing SemVer version strings.
+
+// ## Numeric Identifier
+// A single `0`, or a non-zero digit followed by zero or more digits.
+
+tok('NUMERICIDENTIFIER');
+src[t.NUMERICIDENTIFIER] = '0|[1-9]\\d*';
+tok('NUMERICIDENTIFIERLOOSE');
+src[t.NUMERICIDENTIFIERLOOSE] = '[0-9]+';
+
+// ## Non-numeric Identifier
+// Zero or more digits, followed by a letter or hyphen, and then zero or
+// more letters, digits, or hyphens.
+
+tok('NONNUMERICIDENTIFIER');
+src[t.NONNUMERICIDENTIFIER] = '\\d*[a-zA-Z-][a-zA-Z0-9-]*';
+
+// ## Main Version
+// Three dot-separated numeric identifiers.
+
+tok('MAINVERSION');
+src[t.MAINVERSION] = '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[t.NUMERICIDENTIFIER] + ')\\.' +
+                   '(' + src[t.NUMERICIDENTIFIER] + ')';
+
+tok('MAINVERSIONLOOSE');
+src[t.MAINVERSIONLOOSE] = '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')\\.' +
+                        '(' + src[t.NUMERICIDENTIFIERLOOSE] + ')';
+
+// ## Pre-release Version Identifier
+// A numeric identifier, or a non-numeric identifier.
+
+tok('PRERELEASEIDENTIFIER');
+src[t.PRERELEASEIDENTIFIER] = '(?:' + src[t.NUMERICIDENTIFIER] +
+                            '|' + src[t.NONNUMERICIDENTIFIER] + ')';
+
+tok('PRERELEASEIDENTIFIERLOOSE');
+src[t.PRERELEASEIDENTIFIERLOOSE] = '(?:' + src[t.NUMERICIDENTIFIERLOOSE] +
+                                 '|' + src[t.NONNUMERICIDENTIFIER] + ')';
+
+// ## Pre-release Version
+// Hyphen, followed by one or more dot-separated pre-release version
+// identifiers.
+
+tok('PRERELEASE');
+src[t.PRERELEASE] = '(?:-(' + src[t.PRERELEASEIDENTIFIER] +
+                  '(?:\\.' + src[t.PRERELEASEIDENTIFIER] + ')*))';
+
+tok('PRERELEASELOOSE');
+src[t.PRERELEASELOOSE] = '(?:-?(' + src[t.PRERELEASEIDENTIFIERLOOSE] +
+                       '(?:\\.' + src[t.PRERELEASEIDENTIFIERLOOSE] + ')*))';
+
+// ## Build Metadata Identifier
+// Any combination of digits, letters, or hyphens.
+
+tok('BUILDIDENTIFIER');
+src[t.BUILDIDENTIFIER] = '[0-9A-Za-z-]+';
+
+// ## Build Metadata
+// Plus sign, followed by one or more period-separated build metadata
+// identifiers.
+
+tok('BUILD');
+src[t.BUILD] = '(?:\\+(' + src[t.BUILDIDENTIFIER] +
+             '(?:\\.' + src[t.BUILDIDENTIFIER] + ')*))';
+
+// ## Full Version String
+// A main version, followed optionally by a pre-release version and
+// build metadata.
+
+// Note that the only major, minor, patch, and pre-release sections of
+// the version string are capturing groups.  The build metadata is not a
+// capturing group, because it should not ever be used in version
+// comparison.
+
+tok('FULL');
+tok('FULLPLAIN');
+src[t.FULLPLAIN] = 'v?' + src[t.MAINVERSION] +
+                  src[t.PRERELEASE] + '?' +
+                  src[t.BUILD] + '?';
+
+src[t.FULL] = '^' + src[t.FULLPLAIN] + '$';
+
+// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.
+// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty
+// common in the npm registry.
+tok('LOOSEPLAIN');
+src[t.LOOSEPLAIN] = '[v=\\s]*' + src[t.MAINVERSIONLOOSE] +
+                  src[t.PRERELEASELOOSE] + '?' +
+                  src[t.BUILD] + '?';
+
+tok('LOOSE');
+src[t.LOOSE] = '^' + src[t.LOOSEPLAIN] + '$';
+
+tok('GTLT');
+src[t.GTLT] = '((?:<|>)?=?)';
+
+// Something like "2.*" or "1.2.x".
+// Note that "x.x" is a valid xRange identifer, meaning "any version"
+// Only the first item is strictly required.
+tok('XRANGEIDENTIFIERLOOSE');
+src[t.XRANGEIDENTIFIERLOOSE] = src[t.NUMERICIDENTIFIERLOOSE] + '|x|X|\\*';
+tok('XRANGEIDENTIFIER');
+src[t.XRANGEIDENTIFIER] = src[t.NUMERICIDENTIFIER] + '|x|X|\\*';
+
+tok('XRANGEPLAIN');
+src[t.XRANGEPLAIN] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:\\.(' + src[t.XRANGEIDENTIFIER] + ')' +
+                   '(?:' + src[t.PRERELEASE] + ')?' +
+                   src[t.BUILD] + '?' +
+                   ')?)?';
+
+tok('XRANGEPLAINLOOSE');
+src[t.XRANGEPLAINLOOSE] = '[v=\\s]*(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:\\.(' + src[t.XRANGEIDENTIFIERLOOSE] + ')' +
+                        '(?:' + src[t.PRERELEASELOOSE] + ')?' +
+                        src[t.BUILD] + '?' +
+                        ')?)?';
+
+tok('XRANGE');
+src[t.XRANGE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAIN] + '$';
+tok('XRANGELOOSE');
+src[t.XRANGELOOSE] = '^' + src[t.GTLT] + '\\s*' + src[t.XRANGEPLAINLOOSE] + '$';
+
+// Coercion.
+// Extract anything that could conceivably be a part of a valid semver
+tok('COERCE');
+src[t.COERCE] = '(^|[^\\d])' +
+              '(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '})' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:\\.(\\d{1,' + MAX_SAFE_COMPONENT_LENGTH + '}))?' +
+              '(?:$|[^\\d])';
+tok('COERCERTL');
+re[t.COERCERTL] = new RegExp(src[t.COERCE], 'g');
+
+// Tilde ranges.
+// Meaning is "reasonably at or greater than"
+tok('LONETILDE');
+src[t.LONETILDE] = '(?:~>?)';
+
+tok('TILDETRIM');
+src[t.TILDETRIM] = '(\\s*)' + src[t.LONETILDE] + '\\s+';
+re[t.TILDETRIM] = new RegExp(src[t.TILDETRIM], 'g');
+var tildeTrimReplace = '$1~';
+
+tok('TILDE');
+src[t.TILDE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAIN] + '$';
+tok('TILDELOOSE');
+src[t.TILDELOOSE] = '^' + src[t.LONETILDE] + src[t.XRANGEPLAINLOOSE] + '$';
+
+// Caret ranges.
+// Meaning is "at least and backwards compatible with"
+tok('LONECARET');
+src[t.LONECARET] = '(?:\\^)';
+
+tok('CARETTRIM');
+src[t.CARETTRIM] = '(\\s*)' + src[t.LONECARET] + '\\s+';
+re[t.CARETTRIM] = new RegExp(src[t.CARETTRIM], 'g');
+var caretTrimReplace = '$1^';
+
+tok('CARET');
+src[t.CARET] = '^' + src[t.LONECARET] + src[t.XRANGEPLAIN] + '$';
+tok('CARETLOOSE');
+src[t.CARETLOOSE] = '^' + src[t.LONECARET] + src[t.XRANGEPLAINLOOSE] + '$';
+
+// A simple gt/lt/eq thing, or just "" to indicate "any version"
+tok('COMPARATORLOOSE');
+src[t.COMPARATORLOOSE] = '^' + src[t.GTLT] + '\\s*(' + src[t.LOOSEPLAIN] + ')$|^$';
+tok('COMPARATOR');
+src[t.COMPARATOR] = '^' + src[t.GTLT] + '\\s*(' + src[t.FULLPLAIN] + ')$|^$';
+
+// An expression to strip any whitespace between the gtlt and the thing
+// it modifies, so that `> 1.2.3` ==> `>1.2.3`
+tok('COMPARATORTRIM');
+src[t.COMPARATORTRIM] = '(\\s*)' + src[t.GTLT] +
+                      '\\s*(' + src[t.LOOSEPLAIN] + '|' + src[t.XRANGEPLAIN] + ')';
+
+// this one has to use the /g flag
+re[t.COMPARATORTRIM] = new RegExp(src[t.COMPARATORTRIM], 'g');
+var comparatorTrimReplace = '$1$2$3';
+
+// Something like `1.2.3 - 1.2.4`
+// Note that these all use the loose form, because they'll be
+// checked against either the strict or loose comparator form
+// later.
+tok('HYPHENRANGE');
+src[t.HYPHENRANGE] = '^\\s*(' + src[t.XRANGEPLAIN] + ')' +
+                   '\\s+-\\s+' +
+                   '(' + src[t.XRANGEPLAIN] + ')' +
+                   '\\s*$';
+
+tok('HYPHENRANGELOOSE');
+src[t.HYPHENRANGELOOSE] = '^\\s*(' + src[t.XRANGEPLAINLOOSE] + ')' +
+                        '\\s+-\\s+' +
+                        '(' + src[t.XRANGEPLAINLOOSE] + ')' +
+                        '\\s*$';
+
+// Star ranges basically just allow anything at all.
+tok('STAR');
+src[t.STAR] = '(<|>)?=?\\s*\\*';
+
+// Compile to actual regexp objects.
+// All are flag-free, unless they were created above with a flag.
+for (var i = 0; i < R; i++) {
+  debug(i, src[i]);
+  if (!re[i]) {
+    re[i] = new RegExp(src[i]);
+  }
+}
+
+exports.parse = parse;
+function parse (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    };
+  }
+
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  if (version.length > MAX_LENGTH) {
+    return null
+  }
+
+  var r = options.loose ? re[t.LOOSE] : re[t.FULL];
+  if (!r.test(version)) {
+    return null
+  }
+
+  try {
+    return new SemVer(version, options)
+  } catch (er) {
+    return null
+  }
+}
+
+exports.valid = valid;
+function valid (version, options) {
+  var v = parse(version, options);
+  return v ? v.version : null
+}
+
+exports.clean = clean;
+function clean (version, options) {
+  var s = parse(version.trim().replace(/^[=v]+/, ''), options);
+  return s ? s.version : null
+}
+
+exports.SemVer = SemVer;
+
+function SemVer (version, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    };
+  }
+  if (version instanceof SemVer) {
+    if (version.loose === options.loose) {
+      return version
+    } else {
+      version = version.version;
+    }
+  } else if (typeof version !== 'string') {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  if (version.length > MAX_LENGTH) {
+    throw new TypeError('version is longer than ' + MAX_LENGTH + ' characters')
+  }
+
+  if (!(this instanceof SemVer)) {
+    return new SemVer(version, options)
+  }
+
+  debug('SemVer', version, options);
+  this.options = options;
+  this.loose = !!options.loose;
+
+  var m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL]);
+
+  if (!m) {
+    throw new TypeError('Invalid Version: ' + version)
+  }
+
+  this.raw = version;
+
+  // these are actually numbers
+  this.major = +m[1];
+  this.minor = +m[2];
+  this.patch = +m[3];
+
+  if (this.major > MAX_SAFE_INTEGER || this.major < 0) {
+    throw new TypeError('Invalid major version')
+  }
+
+  if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {
+    throw new TypeError('Invalid minor version')
+  }
+
+  if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {
+    throw new TypeError('Invalid patch version')
+  }
+
+  // numberify any prerelease numeric ids
+  if (!m[4]) {
+    this.prerelease = [];
+  } else {
+    this.prerelease = m[4].split('.').map(function (id) {
+      if (/^[0-9]+$/.test(id)) {
+        var num = +id;
+        if (num >= 0 && num < MAX_SAFE_INTEGER) {
+          return num
+        }
+      }
+      return id
+    });
+  }
+
+  this.build = m[5] ? m[5].split('.') : [];
+  this.format();
+}
+
+SemVer.prototype.format = function () {
+  this.version = this.major + '.' + this.minor + '.' + this.patch;
+  if (this.prerelease.length) {
+    this.version += '-' + this.prerelease.join('.');
+  }
+  return this.version
+};
+
+SemVer.prototype.toString = function () {
+  return this.version
+};
+
+SemVer.prototype.compare = function (other) {
+  debug('SemVer.compare', this.version, this.options, other);
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options);
+  }
+
+  return this.compareMain(other) || this.comparePre(other)
+};
+
+SemVer.prototype.compareMain = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options);
+  }
+
+  return compareIdentifiers(this.major, other.major) ||
+         compareIdentifiers(this.minor, other.minor) ||
+         compareIdentifiers(this.patch, other.patch)
+};
+
+SemVer.prototype.comparePre = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options);
+  }
+
+  // NOT having a prerelease is > having one
+  if (this.prerelease.length && !other.prerelease.length) {
+    return -1
+  } else if (!this.prerelease.length && other.prerelease.length) {
+    return 1
+  } else if (!this.prerelease.length && !other.prerelease.length) {
+    return 0
+  }
+
+  var i = 0;
+  do {
+    var a = this.prerelease[i];
+    var b = other.prerelease[i];
+    debug('prerelease compare', i, a, b);
+    if (a === undefined && b === undefined) {
+      return 0
+    } else if (b === undefined) {
+      return 1
+    } else if (a === undefined) {
+      return -1
+    } else if (a === b) {
+      continue
+    } else {
+      return compareIdentifiers(a, b)
+    }
+  } while (++i)
+};
+
+SemVer.prototype.compareBuild = function (other) {
+  if (!(other instanceof SemVer)) {
+    other = new SemVer(other, this.options);
+  }
+
+  var i = 0;
+  do {
+    var a = this.build[i];
+    var b = other.build[i];
+    debug('prerelease compare', i, a, b);
+    if (a === undefined && b === undefined) {
+      return 0
+    } else if (b === undefined) {
+      return 1
+    } else if (a === undefined) {
+      return -1
+    } else if (a === b) {
+      continue
+    } else {
+      return compareIdentifiers(a, b)
+    }
+  } while (++i)
+};
+
+// preminor will bump the version up to the next minor release, and immediately
+// down to pre-release. premajor and prepatch work the same way.
+SemVer.prototype.inc = function (release, identifier) {
+  switch (release) {
+    case 'premajor':
+      this.prerelease.length = 0;
+      this.patch = 0;
+      this.minor = 0;
+      this.major++;
+      this.inc('pre', identifier);
+      break
+    case 'preminor':
+      this.prerelease.length = 0;
+      this.patch = 0;
+      this.minor++;
+      this.inc('pre', identifier);
+      break
+    case 'prepatch':
+      // If this is already a prerelease, it will bump to the next version
+      // drop any prereleases that might already exist, since they are not
+      // relevant at this point.
+      this.prerelease.length = 0;
+      this.inc('patch', identifier);
+      this.inc('pre', identifier);
+      break
+    // If the input is a non-prerelease version, this acts the same as
+    // prepatch.
+    case 'prerelease':
+      if (this.prerelease.length === 0) {
+        this.inc('patch', identifier);
+      }
+      this.inc('pre', identifier);
+      break
+
+    case 'major':
+      // If this is a pre-major version, bump up to the same major version.
+      // Otherwise increment major.
+      // 1.0.0-5 bumps to 1.0.0
+      // 1.1.0 bumps to 2.0.0
+      if (this.minor !== 0 ||
+          this.patch !== 0 ||
+          this.prerelease.length === 0) {
+        this.major++;
+      }
+      this.minor = 0;
+      this.patch = 0;
+      this.prerelease = [];
+      break
+    case 'minor':
+      // If this is a pre-minor version, bump up to the same minor version.
+      // Otherwise increment minor.
+      // 1.2.0-5 bumps to 1.2.0
+      // 1.2.1 bumps to 1.3.0
+      if (this.patch !== 0 || this.prerelease.length === 0) {
+        this.minor++;
+      }
+      this.patch = 0;
+      this.prerelease = [];
+      break
+    case 'patch':
+      // If this is not a pre-release version, it will increment the patch.
+      // If it is a pre-release it will bump up to the same patch version.
+      // 1.2.0-5 patches to 1.2.0
+      // 1.2.0 patches to 1.2.1
+      if (this.prerelease.length === 0) {
+        this.patch++;
+      }
+      this.prerelease = [];
+      break
+    // This probably shouldn't be used publicly.
+    // 1.0.0 "pre" would become 1.0.0-0 which is the wrong direction.
+    case 'pre':
+      if (this.prerelease.length === 0) {
+        this.prerelease = [0];
+      } else {
+        var i = this.prerelease.length;
+        while (--i >= 0) {
+          if (typeof this.prerelease[i] === 'number') {
+            this.prerelease[i]++;
+            i = -2;
+          }
+        }
+        if (i === -1) {
+          // didn't increment anything
+          this.prerelease.push(0);
+        }
+      }
+      if (identifier) {
+        // 1.2.0-beta.1 bumps to 1.2.0-beta.2,
+        // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0
+        if (this.prerelease[0] === identifier) {
+          if (isNaN(this.prerelease[1])) {
+            this.prerelease = [identifier, 0];
+          }
+        } else {
+          this.prerelease = [identifier, 0];
+        }
+      }
+      break
+
+    default:
+      throw new Error('invalid increment argument: ' + release)
+  }
+  this.format();
+  this.raw = this.version;
+  return this
+};
+
+exports.inc = inc;
+function inc (version, release, loose, identifier) {
+  if (typeof (loose) === 'string') {
+    identifier = loose;
+    loose = undefined;
+  }
+
+  try {
+    return new SemVer(version, loose).inc(release, identifier).version
+  } catch (er) {
+    return null
+  }
+}
+
+exports.diff = diff;
+function diff (version1, version2) {
+  if (eq(version1, version2)) {
+    return null
+  } else {
+    var v1 = parse(version1);
+    var v2 = parse(version2);
+    var prefix = '';
+    if (v1.prerelease.length || v2.prerelease.length) {
+      prefix = 'pre';
+      var defaultResult = 'prerelease';
+    }
+    for (var key in v1) {
+      if (key === 'major' || key === 'minor' || key === 'patch') {
+        if (v1[key] !== v2[key]) {
+          return prefix + key
+        }
+      }
+    }
+    return defaultResult // may be undefined
+  }
+}
+
+exports.compareIdentifiers = compareIdentifiers;
+
+var numeric = /^[0-9]+$/;
+function compareIdentifiers (a, b) {
+  var anum = numeric.test(a);
+  var bnum = numeric.test(b);
+
+  if (anum && bnum) {
+    a = +a;
+    b = +b;
+  }
+
+  return a === b ? 0
+    : (anum && !bnum) ? -1
+    : (bnum && !anum) ? 1
+    : a < b ? -1
+    : 1
+}
+
+exports.rcompareIdentifiers = rcompareIdentifiers;
+function rcompareIdentifiers (a, b) {
+  return compareIdentifiers(b, a)
+}
+
+exports.major = major;
+function major (a, loose) {
+  return new SemVer(a, loose).major
+}
+
+exports.minor = minor;
+function minor (a, loose) {
+  return new SemVer(a, loose).minor
+}
+
+exports.patch = patch;
+function patch (a, loose) {
+  return new SemVer(a, loose).patch
+}
+
+exports.compare = compare;
+function compare (a, b, loose) {
+  return new SemVer(a, loose).compare(new SemVer(b, loose))
+}
+
+exports.compareLoose = compareLoose;
+function compareLoose (a, b) {
+  return compare(a, b, true)
+}
+
+exports.compareBuild = compareBuild;
+function compareBuild (a, b, loose) {
+  var versionA = new SemVer(a, loose);
+  var versionB = new SemVer(b, loose);
+  return versionA.compare(versionB) || versionA.compareBuild(versionB)
+}
+
+exports.rcompare = rcompare;
+function rcompare (a, b, loose) {
+  return compare(b, a, loose)
+}
+
+exports.sort = sort;
+function sort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.compareBuild(a, b, loose)
+  })
+}
+
+exports.rsort = rsort;
+function rsort (list, loose) {
+  return list.sort(function (a, b) {
+    return exports.compareBuild(b, a, loose)
+  })
+}
+
+exports.gt = gt;
+function gt (a, b, loose) {
+  return compare(a, b, loose) > 0
+}
+
+exports.lt = lt;
+function lt (a, b, loose) {
+  return compare(a, b, loose) < 0
+}
+
+exports.eq = eq;
+function eq (a, b, loose) {
+  return compare(a, b, loose) === 0
+}
+
+exports.neq = neq;
+function neq (a, b, loose) {
+  return compare(a, b, loose) !== 0
+}
+
+exports.gte = gte;
+function gte (a, b, loose) {
+  return compare(a, b, loose) >= 0
+}
+
+exports.lte = lte;
+function lte (a, b, loose) {
+  return compare(a, b, loose) <= 0
+}
+
+exports.cmp = cmp;
+function cmp (a, op, b, loose) {
+  switch (op) {
+    case '===':
+      if (typeof a === 'object')
+        { a = a.version; }
+      if (typeof b === 'object')
+        { b = b.version; }
+      return a === b
+
+    case '!==':
+      if (typeof a === 'object')
+        { a = a.version; }
+      if (typeof b === 'object')
+        { b = b.version; }
+      return a !== b
+
+    case '':
+    case '=':
+    case '==':
+      return eq(a, b, loose)
+
+    case '!=':
+      return neq(a, b, loose)
+
+    case '>':
+      return gt(a, b, loose)
+
+    case '>=':
+      return gte(a, b, loose)
+
+    case '<':
+      return lt(a, b, loose)
+
+    case '<=':
+      return lte(a, b, loose)
+
+    default:
+      throw new TypeError('Invalid operator: ' + op)
+  }
+}
+
+exports.Comparator = Comparator;
+function Comparator (comp, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    };
+  }
+
+  if (comp instanceof Comparator) {
+    if (comp.loose === !!options.loose) {
+      return comp
+    } else {
+      comp = comp.value;
+    }
+  }
+
+  if (!(this instanceof Comparator)) {
+    return new Comparator(comp, options)
+  }
+
+  debug('comparator', comp, options);
+  this.options = options;
+  this.loose = !!options.loose;
+  this.parse(comp);
+
+  if (this.semver === ANY) {
+    this.value = '';
+  } else {
+    this.value = this.operator + this.semver.version;
+  }
+
+  debug('comp', this);
+}
+
+var ANY = {};
+Comparator.prototype.parse = function (comp) {
+  var r = this.options.loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
+  var m = comp.match(r);
+
+  if (!m) {
+    throw new TypeError('Invalid comparator: ' + comp)
+  }
+
+  this.operator = m[1] !== undefined ? m[1] : '';
+  if (this.operator === '=') {
+    this.operator = '';
+  }
+
+  // if it literally is just '>' or '' then allow anything.
+  if (!m[2]) {
+    this.semver = ANY;
+  } else {
+    this.semver = new SemVer(m[2], this.options.loose);
+  }
+};
+
+Comparator.prototype.toString = function () {
+  return this.value
+};
+
+Comparator.prototype.test = function (version) {
+  debug('Comparator.test', version, this.options.loose);
+
+  if (this.semver === ANY || version === ANY) {
+    return true
+  }
+
+  if (typeof version === 'string') {
+    try {
+      version = new SemVer(version, this.options);
+    } catch (er) {
+      return false
+    }
+  }
+
+  return cmp(version, this.operator, this.semver, this.options)
+};
+
+Comparator.prototype.intersects = function (comp, options) {
+  if (!(comp instanceof Comparator)) {
+    throw new TypeError('a Comparator is required')
+  }
+
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    };
+  }
+
+  var rangeTmp;
+
+  if (this.operator === '') {
+    if (this.value === '') {
+      return true
+    }
+    rangeTmp = new Range(comp.value, options);
+    return satisfies(this.value, rangeTmp, options)
+  } else if (comp.operator === '') {
+    if (comp.value === '') {
+      return true
+    }
+    rangeTmp = new Range(this.value, options);
+    return satisfies(comp.semver, rangeTmp, options)
+  }
+
+  var sameDirectionIncreasing =
+    (this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '>=' || comp.operator === '>');
+  var sameDirectionDecreasing =
+    (this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '<=' || comp.operator === '<');
+  var sameSemVer = this.semver.version === comp.semver.version;
+  var differentDirectionsInclusive =
+    (this.operator === '>=' || this.operator === '<=') &&
+    (comp.operator === '>=' || comp.operator === '<=');
+  var oppositeDirectionsLessThan =
+    cmp(this.semver, '<', comp.semver, options) &&
+    ((this.operator === '>=' || this.operator === '>') &&
+    (comp.operator === '<=' || comp.operator === '<'));
+  var oppositeDirectionsGreaterThan =
+    cmp(this.semver, '>', comp.semver, options) &&
+    ((this.operator === '<=' || this.operator === '<') &&
+    (comp.operator === '>=' || comp.operator === '>'));
+
+  return sameDirectionIncreasing || sameDirectionDecreasing ||
+    (sameSemVer && differentDirectionsInclusive) ||
+    oppositeDirectionsLessThan || oppositeDirectionsGreaterThan
+};
+
+exports.Range = Range;
+function Range (range, options) {
+  if (!options || typeof options !== 'object') {
+    options = {
+      loose: !!options,
+      includePrerelease: false
+    };
+  }
+
+  if (range instanceof Range) {
+    if (range.loose === !!options.loose &&
+        range.includePrerelease === !!options.includePrerelease) {
+      return range
+    } else {
+      return new Range(range.raw, options)
+    }
+  }
+
+  if (range instanceof Comparator) {
+    return new Range(range.value, options)
+  }
+
+  if (!(this instanceof Range)) {
+    return new Range(range, options)
+  }
+
+  this.options = options;
+  this.loose = !!options.loose;
+  this.includePrerelease = !!options.includePrerelease;
+
+  // First, split based on boolean or ||
+  this.raw = range;
+  this.set = range.split(/\s*\|\|\s*/).map(function (range) {
+    return this.parseRange(range.trim())
+  }, this).filter(function (c) {
+    // throw out any that are not relevant for whatever reason
+    return c.length
+  });
+
+  if (!this.set.length) {
+    throw new TypeError('Invalid SemVer Range: ' + range)
+  }
+
+  this.format();
+}
+
+Range.prototype.format = function () {
+  this.range = this.set.map(function (comps) {
+    return comps.join(' ').trim()
+  }).join('||').trim();
+  return this.range
+};
+
+Range.prototype.toString = function () {
+  return this.range
+};
+
+Range.prototype.parseRange = function (range) {
+  var loose = this.options.loose;
+  range = range.trim();
+  // `1.2.3 - 1.2.4` => `>=1.2.3 <=1.2.4`
+  var hr = loose ? re[t.HYPHENRANGELOOSE] : re[t.HYPHENRANGE];
+  range = range.replace(hr, hyphenReplace);
+  debug('hyphen replace', range);
+  // `> 1.2.3 < 1.2.5` => `>1.2.3 <1.2.5`
+  range = range.replace(re[t.COMPARATORTRIM], comparatorTrimReplace);
+  debug('comparator trim', range, re[t.COMPARATORTRIM]);
+
+  // `~ 1.2.3` => `~1.2.3`
+  range = range.replace(re[t.TILDETRIM], tildeTrimReplace);
+
+  // `^ 1.2.3` => `^1.2.3`
+  range = range.replace(re[t.CARETTRIM], caretTrimReplace);
+
+  // normalize spaces
+  range = range.split(/\s+/).join(' ');
+
+  // At this point, the range is completely trimmed and
+  // ready to be split into comparators.
+
+  var compRe = loose ? re[t.COMPARATORLOOSE] : re[t.COMPARATOR];
+  var set = range.split(' ').map(function (comp) {
+    return parseComparator(comp, this.options)
+  }, this).join(' ').split(/\s+/);
+  if (this.options.loose) {
+    // in loose mode, throw out any that are not valid comparators
+    set = set.filter(function (comp) {
+      return !!comp.match(compRe)
+    });
+  }
+  set = set.map(function (comp) {
+    return new Comparator(comp, this.options)
+  }, this);
+
+  return set
+};
+
+Range.prototype.intersects = function (range, options) {
+  if (!(range instanceof Range)) {
+    throw new TypeError('a Range is required')
+  }
+
+  return this.set.some(function (thisComparators) {
+    return (
+      isSatisfiable(thisComparators, options) &&
+      range.set.some(function (rangeComparators) {
+        return (
+          isSatisfiable(rangeComparators, options) &&
+          thisComparators.every(function (thisComparator) {
+            return rangeComparators.every(function (rangeComparator) {
+              return thisComparator.intersects(rangeComparator, options)
+            })
+          })
+        )
+      })
+    )
+  })
+};
+
+// take a set of comparators and determine whether there
+// exists a version which can satisfy it
+function isSatisfiable (comparators, options) {
+  var result = true;
+  var remainingComparators = comparators.slice();
+  var testComparator = remainingComparators.pop();
+
+  while (result && remainingComparators.length) {
+    result = remainingComparators.every(function (otherComparator) {
+      return testComparator.intersects(otherComparator, options)
+    });
+
+    testComparator = remainingComparators.pop();
+  }
+
+  return result
+}
+
+// Mostly just for testing and legacy API reasons
+exports.toComparators = toComparators;
+function toComparators (range, options) {
+  return new Range(range, options).set.map(function (comp) {
+    return comp.map(function (c) {
+      return c.value
+    }).join(' ').trim().split(' ')
+  })
+}
+
+// comprised of xranges, tildes, stars, and gtlt's at this point.
+// already replaced the hyphen ranges
+// turn into a set of JUST comparators.
+function parseComparator (comp, options) {
+  debug('comp', comp, options);
+  comp = replaceCarets(comp, options);
+  debug('caret', comp);
+  comp = replaceTildes(comp, options);
+  debug('tildes', comp);
+  comp = replaceXRanges(comp, options);
+  debug('xrange', comp);
+  comp = replaceStars(comp, options);
+  debug('stars', comp);
+  return comp
+}
+
+function isX (id) {
+  return !id || id.toLowerCase() === 'x' || id === '*'
+}
+
+// ~, ~> --> * (any, kinda silly)
+// ~2, ~2.x, ~2.x.x, ~>2, ~>2.x ~>2.x.x --> >=2.0.0 <3.0.0
+// ~2.0, ~2.0.x, ~>2.0, ~>2.0.x --> >=2.0.0 <2.1.0
+// ~1.2, ~1.2.x, ~>1.2, ~>1.2.x --> >=1.2.0 <1.3.0
+// ~1.2.3, ~>1.2.3 --> >=1.2.3 <1.3.0
+// ~1.2.0, ~>1.2.0 --> >=1.2.0 <1.3.0
+function replaceTildes (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceTilde(comp, options)
+  }).join(' ')
+}
+
+function replaceTilde (comp, options) {
+  var r = options.loose ? re[t.TILDELOOSE] : re[t.TILDE];
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('tilde', comp, _, M, m, p, pr);
+    var ret;
+
+    if (isX(M)) {
+      ret = '';
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
+    } else if (isX(p)) {
+      // ~1.2 == >=1.2.0 <1.3.0
+      ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
+    } else if (pr) {
+      debug('replaceTilde pr', pr);
+      ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+            ' <' + M + '.' + (+m + 1) + '.0';
+    } else {
+      // ~1.2.3 == >=1.2.3 <1.3.0
+      ret = '>=' + M + '.' + m + '.' + p +
+            ' <' + M + '.' + (+m + 1) + '.0';
+    }
+
+    debug('tilde return', ret);
+    return ret
+  })
+}
+
+// ^ --> * (any, kinda silly)
+// ^2, ^2.x, ^2.x.x --> >=2.0.0 <3.0.0
+// ^2.0, ^2.0.x --> >=2.0.0 <3.0.0
+// ^1.2, ^1.2.x --> >=1.2.0 <2.0.0
+// ^1.2.3 --> >=1.2.3 <2.0.0
+// ^1.2.0 --> >=1.2.0 <2.0.0
+function replaceCarets (comp, options) {
+  return comp.trim().split(/\s+/).map(function (comp) {
+    return replaceCaret(comp, options)
+  }).join(' ')
+}
+
+function replaceCaret (comp, options) {
+  debug('caret', comp, options);
+  var r = options.loose ? re[t.CARETLOOSE] : re[t.CARET];
+  return comp.replace(r, function (_, M, m, p, pr) {
+    debug('caret', comp, _, M, m, p, pr);
+    var ret;
+
+    if (isX(M)) {
+      ret = '';
+    } else if (isX(m)) {
+      ret = '>=' + M + '.0.0 <' + (+M + 1) + '.0.0';
+    } else if (isX(p)) {
+      if (M === '0') {
+        ret = '>=' + M + '.' + m + '.0 <' + M + '.' + (+m + 1) + '.0';
+      } else {
+        ret = '>=' + M + '.' + m + '.0 <' + (+M + 1) + '.0.0';
+      }
+    } else if (pr) {
+      debug('replaceCaret pr', pr);
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + m + '.' + (+p + 1);
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+                ' <' + M + '.' + (+m + 1) + '.0';
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p + '-' + pr +
+              ' <' + (+M + 1) + '.0.0';
+      }
+    } else {
+      debug('no pr');
+      if (M === '0') {
+        if (m === '0') {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + m + '.' + (+p + 1);
+        } else {
+          ret = '>=' + M + '.' + m + '.' + p +
+                ' <' + M + '.' + (+m + 1) + '.0';
+        }
+      } else {
+        ret = '>=' + M + '.' + m + '.' + p +
+              ' <' + (+M + 1) + '.0.0';
+      }
+    }
+
+    debug('caret return', ret);
+    return ret
+  })
+}
+
+function replaceXRanges (comp, options) {
+  debug('replaceXRanges', comp, options);
+  return comp.split(/\s+/).map(function (comp) {
+    return replaceXRange(comp, options)
+  }).join(' ')
+}
+
+function replaceXRange (comp, options) {
+  comp = comp.trim();
+  var r = options.loose ? re[t.XRANGELOOSE] : re[t.XRANGE];
+  return comp.replace(r, function (ret, gtlt, M, m, p, pr) {
+    debug('xRange', comp, ret, gtlt, M, m, p, pr);
+    var xM = isX(M);
+    var xm = xM || isX(m);
+    var xp = xm || isX(p);
+    var anyX = xp;
+
+    if (gtlt === '=' && anyX) {
+      gtlt = '';
+    }
+
+    // if we're including prereleases in the match, then we need
+    // to fix this to -0, the lowest possible prerelease value
+    pr = options.includePrerelease ? '-0' : '';
+
+    if (xM) {
+      if (gtlt === '>' || gtlt === '<') {
+        // nothing is allowed
+        ret = '<0.0.0-0';
+      } else {
+        // nothing is forbidden
+        ret = '*';
+      }
+    } else if (gtlt && anyX) {
+      // we know patch is an x, because we have any x at all.
+      // replace X with 0
+      if (xm) {
+        m = 0;
+      }
+      p = 0;
+
+      if (gtlt === '>') {
+        // >1 => >=2.0.0
+        // >1.2 => >=1.3.0
+        // >1.2.3 => >= 1.2.4
+        gtlt = '>=';
+        if (xm) {
+          M = +M + 1;
+          m = 0;
+          p = 0;
+        } else {
+          m = +m + 1;
+          p = 0;
+        }
+      } else if (gtlt === '<=') {
+        // <=0.7.x is actually <0.8.0, since any 0.7.x should
+        // pass.  Similarly, <=7.x is actually <8.0.0, etc.
+        gtlt = '<';
+        if (xm) {
+          M = +M + 1;
+        } else {
+          m = +m + 1;
+        }
+      }
+
+      ret = gtlt + M + '.' + m + '.' + p + pr;
+    } else if (xm) {
+      ret = '>=' + M + '.0.0' + pr + ' <' + (+M + 1) + '.0.0' + pr;
+    } else if (xp) {
+      ret = '>=' + M + '.' + m + '.0' + pr +
+        ' <' + M + '.' + (+m + 1) + '.0' + pr;
+    }
+
+    debug('xRange return', ret);
+
+    return ret
+  })
+}
+
+// Because * is AND-ed with everything else in the comparator,
+// and '' means "any version", just remove the *s entirely.
+function replaceStars (comp, options) {
+  debug('replaceStars', comp, options);
+  // Looseness is ignored here.  star is always as loose as it gets!
+  return comp.trim().replace(re[t.STAR], '')
+}
+
+// This function is passed to string.replace(re[t.HYPHENRANGE])
+// M, m, patch, prerelease, build
+// 1.2 - 3.4.5 => >=1.2.0 <=3.4.5
+// 1.2.3 - 3.4 => >=1.2.0 <3.5.0 Any 3.4.x will do
+// 1.2 - 3.4 => >=1.2.0 <3.5.0
+function hyphenReplace ($0,
+  from, fM, fm, fp, fpr, fb,
+  to, tM, tm, tp, tpr, tb) {
+  if (isX(fM)) {
+    from = '';
+  } else if (isX(fm)) {
+    from = '>=' + fM + '.0.0';
+  } else if (isX(fp)) {
+    from = '>=' + fM + '.' + fm + '.0';
+  } else {
+    from = '>=' + from;
+  }
+
+  if (isX(tM)) {
+    to = '';
+  } else if (isX(tm)) {
+    to = '<' + (+tM + 1) + '.0.0';
+  } else if (isX(tp)) {
+    to = '<' + tM + '.' + (+tm + 1) + '.0';
+  } else if (tpr) {
+    to = '<=' + tM + '.' + tm + '.' + tp + '-' + tpr;
+  } else {
+    to = '<=' + to;
+  }
+
+  return (from + ' ' + to).trim()
+}
+
+// if ANY of the sets match ALL of its comparators, then pass
+Range.prototype.test = function (version) {
+  if (!version) {
+    return false
+  }
+
+  if (typeof version === 'string') {
+    try {
+      version = new SemVer(version, this.options);
+    } catch (er) {
+      return false
+    }
+  }
+
+  for (var i = 0; i < this.set.length; i++) {
+    if (testSet(this.set[i], version, this.options)) {
+      return true
+    }
+  }
+  return false
+};
+
+function testSet (set, version, options) {
+  for (var i = 0; i < set.length; i++) {
+    if (!set[i].test(version)) {
+      return false
+    }
+  }
+
+  if (version.prerelease.length && !options.includePrerelease) {
+    // Find the set of versions that are allowed to have prereleases
+    // For example, ^1.2.3-pr.1 desugars to >=1.2.3-pr.1 <2.0.0
+    // That should allow `1.2.3-pr.2` to pass.
+    // However, `1.2.4-alpha.notready` should NOT be allowed,
+    // even though it's within the range set by the comparators.
+    for (i = 0; i < set.length; i++) {
+      debug(set[i].semver);
+      if (set[i].semver === ANY) {
+        continue
+      }
+
+      if (set[i].semver.prerelease.length > 0) {
+        var allowed = set[i].semver;
+        if (allowed.major === version.major &&
+            allowed.minor === version.minor &&
+            allowed.patch === version.patch) {
+          return true
+        }
+      }
+    }
+
+    // Version has a -pre, but it's not one of the ones we like.
+    return false
+  }
+
+  return true
+}
+
+exports.satisfies = satisfies;
+function satisfies (version, range, options) {
+  try {
+    range = new Range(range, options);
+  } catch (er) {
+    return false
+  }
+  return range.test(version)
+}
+
+exports.maxSatisfying = maxSatisfying;
+function maxSatisfying (versions, range, options) {
+  var max = null;
+  var maxSV = null;
+  try {
+    var rangeObj = new Range(range, options);
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!max || maxSV.compare(v) === -1) {
+        // compare(max, v, true)
+        max = v;
+        maxSV = new SemVer(max, options);
+      }
+    }
+  });
+  return max
+}
+
+exports.minSatisfying = minSatisfying;
+function minSatisfying (versions, range, options) {
+  var min = null;
+  var minSV = null;
+  try {
+    var rangeObj = new Range(range, options);
+  } catch (er) {
+    return null
+  }
+  versions.forEach(function (v) {
+    if (rangeObj.test(v)) {
+      // satisfies(v, range, options)
+      if (!min || minSV.compare(v) === 1) {
+        // compare(min, v, true)
+        min = v;
+        minSV = new SemVer(min, options);
+      }
+    }
+  });
+  return min
+}
+
+exports.minVersion = minVersion;
+function minVersion (range, loose) {
+  range = new Range(range, loose);
+
+  var minver = new SemVer('0.0.0');
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = new SemVer('0.0.0-0');
+  if (range.test(minver)) {
+    return minver
+  }
+
+  minver = null;
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i];
+
+    comparators.forEach(function (comparator) {
+      // Clone to avoid manipulating the comparator's semver object.
+      var compver = new SemVer(comparator.semver.version);
+      switch (comparator.operator) {
+        case '>':
+          if (compver.prerelease.length === 0) {
+            compver.patch++;
+          } else {
+            compver.prerelease.push(0);
+          }
+          compver.raw = compver.format();
+          /* fallthrough */
+        case '':
+        case '>=':
+          if (!minver || gt(minver, compver)) {
+            minver = compver;
+          }
+          break
+        case '<':
+        case '<=':
+          /* Ignore maximum versions */
+          break
+        /* istanbul ignore next */
+        default:
+          throw new Error('Unexpected operation: ' + comparator.operator)
+      }
+    });
+  }
+
+  if (minver && range.test(minver)) {
+    return minver
+  }
+
+  return null
+}
+
+exports.validRange = validRange;
+function validRange (range, options) {
+  try {
+    // Return '*' instead of '' so that truthiness works.
+    // This will throw if it's invalid anyway
+    return new Range(range, options).range || '*'
+  } catch (er) {
+    return null
+  }
+}
+
+// Determine if version is less than all the versions possible in the range
+exports.ltr = ltr;
+function ltr (version, range, options) {
+  return outside(version, range, '<', options)
+}
+
+// Determine if version is greater than all the versions possible in the range.
+exports.gtr = gtr;
+function gtr (version, range, options) {
+  return outside(version, range, '>', options)
+}
+
+exports.outside = outside;
+function outside (version, range, hilo, options) {
+  version = new SemVer(version, options);
+  range = new Range(range, options);
+
+  var gtfn, ltefn, ltfn, comp, ecomp;
+  switch (hilo) {
+    case '>':
+      gtfn = gt;
+      ltefn = lte;
+      ltfn = lt;
+      comp = '>';
+      ecomp = '>=';
+      break
+    case '<':
+      gtfn = lt;
+      ltefn = gte;
+      ltfn = gt;
+      comp = '<';
+      ecomp = '<=';
+      break
+    default:
+      throw new TypeError('Must provide a hilo val of "<" or ">"')
+  }
+
+  // If it satisifes the range it is not outside
+  if (satisfies(version, range, options)) {
+    return false
+  }
+
+  // From now on, variable terms are as if we're in "gtr" mode.
+  // but note that everything is flipped for the "ltr" function.
+
+  for (var i = 0; i < range.set.length; ++i) {
+    var comparators = range.set[i];
+
+    var high = null;
+    var low = null;
+
+    comparators.forEach(function (comparator) {
+      if (comparator.semver === ANY) {
+        comparator = new Comparator('>=0.0.0');
+      }
+      high = high || comparator;
+      low = low || comparator;
+      if (gtfn(comparator.semver, high.semver, options)) {
+        high = comparator;
+      } else if (ltfn(comparator.semver, low.semver, options)) {
+        low = comparator;
+      }
+    });
+
+    // If the edge version comparator has a operator then our version
+    // isn't outside it
+    if (high.operator === comp || high.operator === ecomp) {
+      return false
+    }
+
+    // If the lowest version comparator has an operator and our version
+    // is less than it then it isn't higher than the range
+    if ((!low.operator || low.operator === comp) &&
+        ltefn(version, low.semver)) {
+      return false
+    } else if (low.operator === ecomp && ltfn(version, low.semver)) {
+      return false
+    }
+  }
+  return true
+}
+
+exports.prerelease = prerelease;
+function prerelease (version, options) {
+  var parsed = parse(version, options);
+  return (parsed && parsed.prerelease.length) ? parsed.prerelease : null
+}
+
+exports.intersects = intersects;
+function intersects (r1, r2, options) {
+  r1 = new Range(r1, options);
+  r2 = new Range(r2, options);
+  return r1.intersects(r2)
+}
+
+exports.coerce = coerce;
+function coerce (version, options) {
+  if (version instanceof SemVer) {
+    return version
+  }
+
+  if (typeof version === 'number') {
+    version = String(version);
+  }
+
+  if (typeof version !== 'string') {
+    return null
+  }
+
+  options = options || {};
+
+  var match = null;
+  if (!options.rtl) {
+    match = version.match(re[t.COERCE]);
+  } else {
+    // Find the right-most coercible string that does not share
+    // a terminus with a more left-ward coercible string.
+    // Eg, '1.2.3.4' wants to coerce '2.3.4', not '3.4' or '4'
+    //
+    // Walk through the string checking with a /g regexp
+    // Manually set the index so as to pick up overlapping matches.
+    // Stop when we get a match that ends at the string end, since no
+    // coercible string can be more right-ward without the same terminus.
+    var next;
+    while ((next = re[t.COERCERTL].exec(version)) &&
+      (!match || match.index + match[0].length !== version.length)
+    ) {
+      if (!match ||
+          next.index + next[0].length !== match.index + match[0].length) {
+        match = next;
+      }
+      re[t.COERCERTL].lastIndex = next.index + next[1].length + next[2].length;
+    }
+    // leave it in a clean state
+    re[t.COERCERTL].lastIndex = -1;
+  }
+
+  if (match === null) {
+    return null
+  }
+
+  return parse(match[2] +
+    '.' + (match[3] || '0') +
+    '.' + (match[4] || '0'), options)
+}
+});
+
+var NAME_SELECTOR = 'NAME_SELECTOR';
+var COMPONENT_SELECTOR = 'COMPONENT_SELECTOR';
+var REF_SELECTOR = 'REF_SELECTOR';
+var DOM_SELECTOR = 'DOM_SELECTOR';
+var INVALID_SELECTOR = 'INVALID_SELECTOR';
+
+var VUE_VERSION = Number(
+  ((Vue.version.split('.')[0]) + "." + (Vue.version.split('.')[1]))
+);
+
+var FUNCTIONAL_OPTIONS =
+  VUE_VERSION >= 2.5 ? 'fnOptions' : 'functionalOptions';
+
+var BEFORE_RENDER_LIFECYCLE_HOOK = semver.gt(Vue.version, '2.1.8')
+  ? 'beforeCreate'
+  : 'beforeMount';
+
+var CREATE_ELEMENT_ALIAS = semver.gt(Vue.version, '2.1.5')
+  ? '_c'
+  : '_h';
+
+// 
+
+function throwError(msg) {
+  throw new Error(("[vue-test-utils]: " + msg))
+}
+
+function warn(msg) {
+  console.error(("[vue-test-utils]: " + msg));
+}
+
+var camelizeRE = /-(\w)/g;
+
+var camelize = function (str) {
+  var camelizedStr = str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; }
+  );
+  return camelizedStr.charAt(0).toLowerCase() + camelizedStr.slice(1)
+};
+
+/**
+ * Capitalize a string.
+ */
+var capitalize = function (str) { return str.charAt(0).toUpperCase() + str.slice(1); };
+
+/**
+ * Hyphenate a camelCase string.
+ */
+var hyphenateRE = /\B([A-Z])/g;
+var hyphenate = function (str) { return str.replace(hyphenateRE, '-$1').toLowerCase(); };
+
+function hasOwnProperty(obj, prop) {
+  return Object.prototype.hasOwnProperty.call(obj, prop)
+}
+
+function keys(obj) {
+  // $FlowIgnore
+  return Object.keys(obj)
+}
+
+function resolveComponent(id, components) {
+  if (typeof id !== 'string') {
+    return
+  }
+  // check local registration variations first
+  if (hasOwnProperty(components, id)) {
+    return components[id]
+  }
+  var camelizedId = camelize(id);
+  if (hasOwnProperty(components, camelizedId)) {
+    return components[camelizedId]
+  }
+  var PascalCaseId = capitalize(camelizedId);
+  if (hasOwnProperty(components, PascalCaseId)) {
+    return components[PascalCaseId]
+  }
+  // fallback to prototype chain
+  return components[id] || components[camelizedId] || components[PascalCaseId]
+}
+
+var UA =
+  typeof window !== 'undefined' &&
+  'navigator' in window &&
+  navigator.userAgent.toLowerCase();
+
+var isPhantomJS = UA && UA.includes && UA.match(/phantomjs/i);
+
+var isEdge = UA && UA.indexOf('edge/') > 0;
+var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;
+
+// get the event used to trigger v-model handler that updates bound data
+function getCheckedEvent() {
+  var version = Vue.version;
+
+  if (semver.satisfies(version, '2.1.9 - 2.1.10')) {
+    return 'click'
+  }
+
+  if (semver.satisfies(version, '2.2 - 2.4')) {
+    return isChrome ? 'click' : 'change'
+  }
+
+  // change is handler for version 2.0 - 2.1.8, and 2.5+
+  return 'change'
+}
+
+/**
+ * Normalize nextTick to return a promise for all Vue 2 versions.
+ * Vue < 2.1 does not return a Promise from nextTick
+ * @return {Promise<R>}
+ */
+function nextTick() {
+  if (VUE_VERSION > 2) { return Vue.nextTick() }
+  return new Promise(function (resolve) {
+    Vue.nextTick(resolve);
+  })
+}
+
+function warnDeprecated(method, fallback) {
+  if ( fallback === void 0 ) fallback = '';
+
+  if (!config.showDeprecationWarnings) { return }
+  var msg = method + " is deprecated and will be removed in the next major version.";
+  if (fallback) { msg += " " + fallback + "."; }
+  if (config.deprecationWarningHandler) {
+    config.deprecationWarningHandler(method, msg);
+  } else {
+    warn(msg);
+  }
+}
+
+function isVueWrapper(wrapper) {
+  return wrapper.vm || wrapper.isFunctionalComponent
+}
+
+// 
+
+function addMocks(
+  _Vue,
+  mockedProperties
+) {
+  if ( mockedProperties === void 0 ) mockedProperties = {};
+
+  if (mockedProperties === false) {
+    return
+  }
+  Object.keys(mockedProperties).forEach(function (key) {
+    try {
+      // $FlowIgnore
+      _Vue.prototype[key] = mockedProperties[key];
+    } catch (e) {
+      warn(
+        "could not overwrite property " + key + ", this is " +
+          "usually caused by a plugin that has added " +
+          "the property as a read-only value"
+      );
+    }
+    // $FlowIgnore
+    Vue.util.defineReactive(_Vue, key, mockedProperties[key]);
+  });
+}
+
+// 
+
+function logEvents(
+  vm,
+  emitted,
+  emittedByOrder
+) {
+  var emit = vm.$emit;
+  vm.$emit = function (name) {
+    var args = [], len = arguments.length - 1;
+    while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
+(emitted[name] || (emitted[name] = [])).push(args);
+    emittedByOrder.push({ name: name, args: args });
+    return emit.call.apply(emit, [ vm, name ].concat( args ))
+  };
+}
+
+function addEventLogger(_Vue) {
+  _Vue.mixin({
+    beforeCreate: function() {
+      this.__emitted = Object.create(null);
+      this.__emittedByOrder = [];
+      logEvents(this, this.__emitted, this.__emittedByOrder);
+    }
+  });
+}
+
+function addStubs(_Vue, stubComponents) {
+  var obj;
+
+  function addStubComponentsMixin() {
+    Object.assign(this.$options.components, stubComponents);
+  }
+
+  _Vue.mixin(( obj = {}, obj[BEFORE_RENDER_LIFECYCLE_HOOK] = addStubComponentsMixin, obj ));
+}
+
+// 
+
+function isDomSelector(selector) {
+  if (typeof selector !== 'string') {
+    return false
+  }
+
+  try {
+    if (typeof document === 'undefined') {
+      throwError(
+        "mount must be run in a browser environment like " +
+          "PhantomJS, jsdom or chrome"
+      );
+    }
+  } catch (error) {
+    throwError(
+      "mount must be run in a browser environment like " +
+        "PhantomJS, jsdom or chrome"
+    );
+  }
+
+  try {
+    document.querySelector(selector);
+    return true
+  } catch (error$1) {
+    return false
+  }
+}
+
+function isVueComponent(c) {
+  if (isConstructor(c)) {
+    return true
+  }
+
+  if (c === null || typeof c !== 'object') {
+    return false
+  }
+
+  if (c.extends || c._Ctor) {
+    return true
+  }
+
+  if (typeof c.template === 'string') {
+    return true
+  }
+
+  if (typeof c.setup === 'function' && !c.render) {
+    return true
+  }
+
+  return typeof c.render === 'function'
+}
+
+function componentNeedsCompiling(component) {
+  return (
+    component &&
+    !component.render &&
+    (component.template || component.extends || component.extendOptions) &&
+    !component.functional
+  )
+}
+
+function isRefSelector(refOptionsObject) {
+  if (
+    typeof refOptionsObject !== 'object' ||
+    Object.keys(refOptionsObject || {}).length !== 1
+  ) {
+    return false
+  }
+
+  return typeof refOptionsObject.ref === 'string'
+}
+
+function isNameSelector(nameOptionsObject) {
+  if (typeof nameOptionsObject !== 'object' || nameOptionsObject === null) {
+    return false
+  }
+
+  return !!nameOptionsObject.name
+}
+
+function isConstructor(c) {
+  return typeof c === 'function' && c.cid
+}
+
+function isDynamicComponent(c) {
+  return typeof c === 'function' && !c.cid
+}
+
+function isComponentOptions(c) {
+  return c !== null && typeof c === 'object' && (c.template || c.render)
+}
+
+function isFunctionalComponent(c) {
+  if (!isVueComponent(c)) {
+    return false
+  }
+  if (isConstructor(c)) {
+    return c.options.functional
+  }
+  return c.functional
+}
+
+function templateContainsComponent(
+  template,
+  name
+) {
+  return [capitalize, camelize, hyphenate].some(function (format) {
+    var re = new RegExp(("<" + (format(name)) + "\\s*(\\s|>|(/>))"), 'g');
+    return re.test(template)
+  })
+}
+
+function isPlainObject(c) {
+  return Object.prototype.toString.call(c) === '[object Object]'
+}
+
+function isHTMLElement(c) {
+  if (typeof HTMLElement === 'undefined') {
+    return false
+  }
+  // eslint-disable-next-line no-undef
+  return c instanceof HTMLElement
+}
+
+function makeMap(str, expectsLowerCase) {
+  var map = Object.create(null);
+  var list = str.split(',');
+  for (var i = 0; i < list.length; i++) {
+    map[list[i]] = true;
+  }
+  return expectsLowerCase
+    ? function(val) {
+        return map[val.toLowerCase()]
+      }
+    : function(val) {
+        return map[val]
+      }
+}
+
+var isHTMLTag = makeMap(
+  'html,body,base,head,link,meta,style,title,' +
+    'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
+    'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +
+    'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
+    's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,' +
+    'embed,object,param,source,canvas,script,noscript,del,ins,' +
+    'caption,col,colgroup,table,thead,tbody,td,th,tr,video,' +
+    'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
+    'output,progress,select,textarea,' +
+    'details,dialog,menu,menuitem,summary,' +
+    'content,element,shadow,template,blockquote,iframe,tfoot'
+);
+
+// this map is intentionally selective, only covering SVG elements that may
+// contain child elements.
+var isSVG = makeMap(
+  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
+    'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
+    'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
+  true
+);
+
+var isReservedTag = function (tag) { return isHTMLTag(tag) || isSVG(tag); };
+
+// 
+
+function compileTemplate(component) {
+  if (component.template) {
+    if (!compileToFunctions) {
+      throwError(
+        "vueTemplateCompiler is undefined, you must pass " +
+          "precompiled components if vue-template-compiler is " +
+          "undefined"
+      );
+    }
+
+    if (component.template.charAt('#') === '#') {
+      var el = document.querySelector(component.template);
+      if (!el) {
+        throwError('Cannot find element' + component.template);
+
+        el = document.createElement('div');
+      }
+      component.template = el.innerHTML;
+    }
+
+    Object.assign(component, Object.assign({}, compileToFunctions(component.template),
+      {name: component.name}));
+  }
+
+  if (component.components) {
+    Object.keys(component.components).forEach(function (c) {
+      var cmp = component.components[c];
+      if (!cmp.render) {
+        compileTemplate(cmp);
+      }
+    });
+  }
+
+  if (component.extends) {
+    compileTemplate(component.extends);
+  }
+
+  if (component.extendOptions && !component.options.render) {
+    compileTemplate(component.options);
+  }
+}
+
+function compileTemplateForSlots(slots) {
+  Object.keys(slots).forEach(function (key) {
+    var slot = Array.isArray(slots[key]) ? slots[key] : [slots[key]];
+    slot.forEach(function (slotValue) {
+      if (componentNeedsCompiling(slotValue)) {
+        compileTemplate(slotValue);
+      }
+    });
+  });
+}
+
+// 
+
+var MOUNTING_OPTIONS = [
+  'attachToDocument',
+  'mocks',
+  'slots',
+  'localVue',
+  'stubs',
+  'context',
+  'clone',
+  'attrs',
+  'listeners',
+  'propsData',
+  'shouldProxy'
+];
+
+function extractInstanceOptions(options) {
+  var instanceOptions = Object.assign({}, options);
+  MOUNTING_OPTIONS.forEach(function (mountingOption) {
+    delete instanceOptions[mountingOption];
+  });
+  return instanceOptions
+}
+
+// 
+
+function isDestructuringSlotScope(slotScope) {
+  return /^{.*}$/.test(slotScope)
+}
+
+function getVueTemplateCompilerHelpers(
+  _Vue
+) {
+  // $FlowIgnore
+  var vue = new _Vue();
+  var helpers = {};
+  var names = [
+    '_c',
+    '_o',
+    '_n',
+    '_s',
+    '_l',
+    '_t',
+    '_q',
+    '_i',
+    '_m',
+    '_f',
+    '_k',
+    '_b',
+    '_v',
+    '_e',
+    '_u',
+    '_g'
+  ];
+  names.forEach(function (name) {
+    helpers[name] = vue._renderProxy[name];
+  });
+  helpers.$createElement = vue._renderProxy.$createElement;
+  helpers.$set = vue._renderProxy.$set;
+  return helpers
+}
+
+function validateEnvironment() {
+  if (VUE_VERSION < 2.1) {
+    throwError("the scopedSlots option is only supported in vue@2.1+.");
+  }
+}
+
+function isScopedSlot(slot) {
+  if (typeof slot === 'function') { return { match: null, slot: slot } }
+
+  var slotScopeRe = /<[^>]+ slot-scope="(.+)"/;
+  var vSlotRe = /<template v-slot(?::.+)?="(.+)"/;
+  var shortVSlotRe = /<template #.*="(.+)"/;
+
+  var hasOldSlotScope = slot.match(slotScopeRe);
+  var hasVSlotScopeAttr = slot.match(vSlotRe);
+  var hasShortVSlotScopeAttr = slot.match(shortVSlotRe);
+
+  if (hasOldSlotScope) {
+    return { slot: slot, match: hasOldSlotScope }
+  } else if (hasVSlotScopeAttr || hasShortVSlotScopeAttr) {
+    // Strip v-slot and #slot attributes from `template` tag. compileToFunctions leaves empty `template` tag otherwise.
+    var sanitizedSlot = slot.replace(
+      /(<template)([^>]+)(>.+<\/template>)/,
+      '$1$3'
+    );
+    return {
+      slot: sanitizedSlot,
+      match: hasVSlotScopeAttr || hasShortVSlotScopeAttr
+    }
+  }
+  // we have no matches, so we just return
+  return {
+    slot: slot,
+    match: null
+  }
+}
+
+// Hide warning about <template> disallowed as root element
+function customWarn(msg) {
+  if (msg.indexOf('Cannot use <template> as component root element') === -1) {
+    console.error(msg);
+  }
+}
+
+function createScopedSlots(
+  scopedSlotsOption,
+  _Vue
+) {
+  var scopedSlots = {};
+  if (!scopedSlotsOption) {
+    return scopedSlots
+  }
+  validateEnvironment();
+  var helpers = getVueTemplateCompilerHelpers(_Vue);
+  var loop = function ( scopedSlotName ) {
+    var slot = scopedSlotsOption[scopedSlotName];
+    var isFn = typeof slot === 'function';
+
+    var scopedSlotMatches = isScopedSlot(slot);
+
+    // Type check to silence flow (can't use isFn)
+    var renderFn =
+      typeof slot === 'function'
+        ? slot
+        : compileToFunctions(scopedSlotMatches.slot, { warn: customWarn })
+            .render;
+
+    var slotScope = scopedSlotMatches.match && scopedSlotMatches.match[1];
+
+    scopedSlots[scopedSlotName] = function(props) {
+      var obj;
+
+      var res;
+      if (isFn) {
+        res = renderFn.call(Object.assign({}, helpers), props);
+      } else if (slotScope && !isDestructuringSlotScope(slotScope)) {
+        res = renderFn.call(Object.assign({}, helpers, ( obj = {}, obj[slotScope] = props, obj )));
+      } else if (slotScope && isDestructuringSlotScope(slotScope)) {
+        res = renderFn.call(Object.assign({}, helpers, props));
+      } else {
+        res = renderFn.call(Object.assign({}, helpers, {props: props}));
+      }
+      // res is Array if <template> is a root element
+      return Array.isArray(res) ? res[0] : res
+    };
+  };
+
+  for (var scopedSlotName in scopedSlotsOption) loop( scopedSlotName );
+  return scopedSlots
+}
+
+// 
+
+var FUNCTION_PLACEHOLDER = '[Function]';
+
+function isVueComponentStub(comp) {
+  return (comp && comp.template) || isVueComponent(comp)
+}
+
+function isValidStub(stub) {
+  return (
+    typeof stub === 'boolean' ||
+    (!!stub && typeof stub === 'string') ||
+    isVueComponentStub(stub)
+  )
+}
+
+function resolveComponent$1(obj, component) {
+  return (
+    obj[component] ||
+    obj[hyphenate(component)] ||
+    obj[camelize(component)] ||
+    obj[capitalize(camelize(component))] ||
+    obj[capitalize(component)] ||
+    {}
+  )
+}
+
+function getCoreProperties(componentOptions) {
+  return {
+    attrs: componentOptions.attrs,
+    name: componentOptions.name,
+    model: componentOptions.model,
+    props: componentOptions.props,
+    on: componentOptions.on,
+    key: componentOptions.key,
+    domProps: componentOptions.domProps,
+    class: componentOptions.class,
+    staticClass: componentOptions.staticClass,
+    staticStyle: componentOptions.staticStyle,
+    style: componentOptions.style,
+    normalizedStyle: componentOptions.normalizedStyle,
+    nativeOn: componentOptions.nativeOn,
+    functional: componentOptions.functional,
+    abstract: componentOptions.abstract
+  }
+}
+
+function resolveOptions(component, _Vue) {
+  if (isDynamicComponent(component)) {
+    return {}
+  }
+
+  return isConstructor(component)
+    ? component.options
+    : _Vue.extend(component).options
+}
+
+function getScopedSlotRenderFunctions(ctx) {
+  // In Vue 2.6+ a new v-slot syntax was introduced
+  // scopedSlots are now saved in parent._vnode.data.scopedSlots
+  // We filter out _normalized, $stable and $key keys
+  if (
+    ctx &&
+    ctx.$options &&
+    ctx.$options.parent &&
+    ctx.$options.parent._vnode &&
+    ctx.$options.parent._vnode.data &&
+    ctx.$options.parent._vnode.data.scopedSlots
+  ) {
+    var slotKeys = ctx.$options.parent._vnode.data.scopedSlots;
+    return keys(slotKeys).filter(
+      function (x) { return x !== '_normalized' && x !== '$stable' && x !== '$key'; }
+    )
+  }
+
+  return []
+}
+
+function createStubFromComponent(
+  originalComponent,
+  name,
+  _Vue
+) {
+  var componentOptions = resolveOptions(originalComponent, _Vue);
+  var tagName = (name || 'anonymous') + "-stub";
+
+  // ignoreElements does not exist in Vue 2.0.x
+  if (Vue.config.ignoredElements) {
+    Vue.config.ignoredElements.push(tagName);
+  }
+
+  return Object.assign({}, getCoreProperties(componentOptions),
+    {$_vueTestUtils_original: originalComponent,
+    $_doNotStubChildren: true,
+    render: function render(h, context) {
+      var this$1 = this;
+
+      return h(
+        tagName,
+        componentOptions.functional
+          ? Object.assign({}, context.data,
+              {attrs: Object.assign({}, shapeStubProps(context.props),
+                context.data.attrs)})
+          : {
+              attrs: Object.assign({}, shapeStubProps(this.$props))
+            },
+        context
+          ? context.children
+          : this.$options._renderChildren ||
+              getScopedSlotRenderFunctions(this).map(function (x) { return this$1.$options.parent._vnode.data.scopedSlots[x]({}); }
+              )
+      )
+    }})
+}
+
+function shapeStubProps(props) {
+  var shapedProps = {};
+  for (var propName in props) {
+    if (typeof props[propName] === 'function') {
+      shapedProps[propName] = FUNCTION_PLACEHOLDER;
+      continue
+    }
+
+    if (Array.isArray(props[propName])) {
+      shapedProps[propName] = props[propName].map(function (value) {
+        return typeof value === 'function' ? FUNCTION_PLACEHOLDER : value
+      });
+      continue
+    }
+
+    shapedProps[propName] = props[propName];
+  }
+
+  return shapedProps
+}
+
+// DEPRECATED: converts string stub to template stub.
+function createStubFromString(templateString, name) {
+  warnDeprecated('Using a string for stubs');
+
+  if (templateContainsComponent(templateString, name)) {
+    throwError('options.stub cannot contain a circular reference');
+  }
+
+  return {
+    template: templateString,
+    $_doNotStubChildren: true
+  }
+}
+
+function setStubComponentName(
+  stub,
+  originalComponent,
+  _Vue
+) {
+  if ( originalComponent === void 0 ) originalComponent = {};
+
+  if (stub.name) { return }
+
+  var componentOptions = resolveOptions(originalComponent, _Vue);
+  stub.name = getCoreProperties(componentOptions).name;
+}
+
+function validateStub(stub) {
+  if (!isValidStub(stub)) {
+    throwError("options.stub values must be passed a string or " + "component");
+  }
+}
+
+function createStubsFromStubsObject(
+  originalComponents,
+  stubs,
+  _Vue
+) {
+  if ( originalComponents === void 0 ) originalComponents = {};
+
+  return Object.keys(stubs || {}).reduce(function (acc, stubName) {
+    var stub = stubs[stubName];
+
+    validateStub(stub);
+
+    if (stub === false) {
+      return acc
+    }
+
+    var component = resolveComponent$1(originalComponents, stubName);
+
+    if (stub === true) {
+      acc[stubName] = createStubFromComponent(component, stubName, _Vue);
+      return acc
+    }
+
+    if (typeof stub === 'string') {
+      stub = createStubFromString(stub, stubName);
+      stubs[stubName];
+    }
+
+    setStubComponentName(stub, component, _Vue);
+    if (componentNeedsCompiling(stub)) {
+      compileTemplate(stub);
+    }
+
+    acc[stubName] = stub;
+    stub._Ctor = {};
+
+    return acc
+  }, {})
+}
+
+var isAllowlisted = function (el, allowlist) { return resolveComponent(el, allowlist); };
+var isAlreadyStubbed = function (el, stubs) { return stubs.has(el); };
+
+function shouldExtend(component, _Vue) {
+  return isConstructor(component) || (component && component.extends)
+}
+
+function extend(component, _Vue) {
+  var componentOptions = component.options ? component.options : component;
+  var stub = _Vue.extend(componentOptions);
+  stub.options.$_vueTestUtils_original = component;
+  stub.options._base = _Vue;
+  return stub
+}
+
+function createStubIfNeeded(shouldStub, component, _Vue, el) {
+  if (shouldStub) {
+    return createStubFromComponent(component || {}, el, _Vue)
+  }
+
+  if (shouldExtend(component)) {
+    return extend(component, _Vue)
+  }
+}
+
+function shouldNotBeStubbed(el, allowlist, modifiedComponents) {
+  return (
+    (typeof el === 'string' && isReservedTag(el)) ||
+    isAllowlisted(el, allowlist) ||
+    isAlreadyStubbed(el, modifiedComponents)
+  )
+}
+
+function patchCreateElement(_Vue, stubs, stubAllComponents) {
+  var obj;
+
+  // This mixin patches vm.$createElement so that we can stub all components
+  // before they are rendered in shallow mode. We also need to ensure that
+  // component constructors were created from the _Vue constructor. If not,
+  // we must replace them with components created from the _Vue constructor
+  // before calling the original $createElement. This ensures that components
+  // have the correct instance properties and stubs when they are rendered.
+  function patchCreateElementMixin() {
+    var vm = this;
+
+    if (vm.$options.$_doNotStubChildren || vm.$options._isFunctionalContainer) {
+      return
+    }
+
+    var modifiedComponents = new Set();
+    var originalCreateElement = vm.$createElement;
+    var originalComponents = vm.$options.components;
+
+    var createElement = function (el) {
+      var obj;
+
+      var args = [], len = arguments.length - 1;
+      while ( len-- > 0 ) args[ len ] = arguments[ len + 1 ];
+      if (shouldNotBeStubbed(el, stubs, modifiedComponents)) {
+        return originalCreateElement.apply(void 0, [ el ].concat( args ))
+      }
+
+      if (isConstructor(el) || isComponentOptions(el)) {
+        if (stubAllComponents) {
+          var stub = createStubFromComponent(el, el.name || 'anonymous', _Vue);
+          return originalCreateElement.apply(void 0, [ stub ].concat( args ))
+        }
+        var Constructor = shouldExtend(el) ? extend(el, _Vue) : el;
+
+        return originalCreateElement.apply(void 0, [ Constructor ].concat( args ))
+      }
+
+      if (typeof el === 'string') {
+        var original = resolveComponent(el, originalComponents);
+
+        if (!original) {
+          return originalCreateElement.apply(void 0, [ el ].concat( args ))
+        }
+
+        if (isDynamicComponent(original)) {
+          return originalCreateElement.apply(void 0, [ el ].concat( args ))
+        }
+
+        var stub$1 = createStubIfNeeded(stubAllComponents, original, _Vue, el);
+
+        if (stub$1) {
+          Object.assign(vm.$options.components, ( obj = {}, obj[el] = stub$1, obj ));
+          modifiedComponents.add(el);
+        }
+      }
+
+      return originalCreateElement.apply(void 0, [ el ].concat( args ))
+    };
+
+    vm[CREATE_ELEMENT_ALIAS] = createElement;
+    vm.$createElement = createElement;
+  }
+
+  _Vue.mixin(( obj = {}, obj[BEFORE_RENDER_LIFECYCLE_HOOK] = patchCreateElementMixin, obj ));
+}
+
+// 
+
+function objectWithoutProperties (obj, exclude) { var target = {}; for (var k in obj) if (Object.prototype.hasOwnProperty.call(obj, k) && exclude.indexOf(k) === -1) target[k] = obj[k]; return target; }
+
+function createContext(options, scopedSlots, currentProps) {
+  var on = Object.assign({}, (options.context && options.context.on),
+    options.listeners);
+  return Object.assign({}, {attrs: Object.assign({}, options.attrs,
+      // pass as attrs so that inheritAttrs works correctly
+      // props should take precedence over attrs
+      currentProps)},
+    (options.context || {}),
+    {on: on,
+    scopedSlots: scopedSlots})
+}
+
+function createChildren(vm, h, ref) {
+  var slots = ref.slots;
+  var context = ref.context;
+
+  var slotVNodes = slots ? createSlotVNodes(vm, slots) : undefined;
+  return (
+    (context &&
+      context.children &&
+      context.children.map(function (x) { return (typeof x === 'function' ? x(h) : x); })) ||
+    slotVNodes
+  )
+}
+
+function getValuesFromCallableOption(optionValue) {
+  if (typeof optionValue === 'function') {
+    return optionValue.call(this)
+  }
+  return optionValue
+}
+
+function createInstance(
+  component,
+  options,
+  _Vue
+) {
+  var componentOptions = isConstructor(component)
+    ? component.options
+    : component;
+
+  // instance options are options that are passed to the
+  // root instance when it's instantiated
+  var instanceOptions = extractInstanceOptions(options);
+
+  var globalComponents = _Vue.options.components || {};
+  var componentsToStub = Object.assign(
+    Object.create(globalComponents),
+    componentOptions.components
+  );
+
+  var stubComponentsObject = createStubsFromStubsObject(
+    componentsToStub,
+    // $FlowIgnore
+    options.stubs,
+    _Vue
+  );
+
+  addEventLogger(_Vue);
+  addMocks(_Vue, options.mocks);
+  addStubs(_Vue, stubComponentsObject);
+  patchCreateElement(_Vue, stubComponentsObject, options.shouldProxy);
+
+  if (componentNeedsCompiling(componentOptions)) {
+    compileTemplate(componentOptions);
+  }
+
+  // used to identify extended component using constructor
+  componentOptions.$_vueTestUtils_original = component;
+
+  // watchers provided in mounting options should override preexisting ones
+  if (componentOptions.watch && instanceOptions.watch) {
+    var componentWatchers = Object.keys(componentOptions.watch);
+    var instanceWatchers = Object.keys(instanceOptions.watch);
+
+    for (var i = 0; i < instanceWatchers.length; i++) {
+      var k = instanceWatchers[i];
+      // override the componentOptions with the one provided in mounting options
+      if (componentWatchers.includes(k)) {
+        componentOptions.watch[k] = instanceOptions.watch[k];
+      }
+    }
+  }
+
+  // make sure all extends are based on this instance
+  var Constructor = _Vue.extend(componentOptions).extend(instanceOptions);
+  Constructor.options._base = _Vue;
+
+  var scopedSlots = createScopedSlots(options.scopedSlots, _Vue);
+
+  var parentComponentOptions = options.parentComponent || {};
+
+  var originalParentComponentProvide = parentComponentOptions.provide;
+  parentComponentOptions.provide = function() {
+    return Object.assign({}, getValuesFromCallableOption.call(this, originalParentComponentProvide),
+      // $FlowIgnore
+      getValuesFromCallableOption.call(this, options.provide))
+  };
+
+  var originalParentComponentData = parentComponentOptions.data;
+  parentComponentOptions.data = function() {
+    return Object.assign({}, getValuesFromCallableOption.call(this, originalParentComponentData),
+      {vueTestUtils_childProps: Object.assign({}, options.propsData)})
+  };
+
+  parentComponentOptions.$_doNotStubChildren = true;
+  parentComponentOptions.$_isWrapperParent = true;
+  parentComponentOptions._isFunctionalContainer = componentOptions.functional;
+  parentComponentOptions.render = function(h) {
+    return h(
+      Constructor,
+      createContext(options, scopedSlots, this.vueTestUtils_childProps),
+      createChildren(this, h, options)
+    )
+  };
+
+  // options  "propsData" can only be used during instance creation with the `new` keyword
+  // "data" should be set only on component under test to avoid reactivity issues
+  var propsData = options.propsData;
+  var data = options.data;
+  var rest$1 = objectWithoutProperties( options, ["propsData", "data"] );
+  var rest = rest$1; // eslint-disable-line
+  var Parent = _Vue.extend(Object.assign({}, rest,
+    parentComponentOptions));
+
+  return new Parent()
+}
+
+// 
+
+function createElement() {
+  if (document) {
+    var elem = document.createElement('div');
+
+    if (document.body) {
+      document.body.appendChild(elem);
+    }
+    return elem
+  }
+}
+
+// 
+
+function findDOMNodes(
+  element,
+  selector
+) {
+  var nodes = [];
+  if (!element || !element.querySelectorAll || !element.matches) {
+    return nodes
+  }
+
+  if (element.matches(selector)) {
+    nodes.push(element);
+  }
+  // $FlowIgnore
+  return nodes.concat([].slice.call(element.querySelectorAll(selector)))
+}
+
+function vmMatchesName(vm, name) {
+  // We want to mirror how Vue resolves component names in SFCs:
+  // For example, <test-component />, <TestComponent /> and `<testComponent />
+  // all resolve to the same component
+  var componentName = isFunctionalComponent(vm)
+    ? vm.name
+    : vm.$options && vm.$options.name;
+
+  return (
+    !!name &&
+    !!componentName &&
+    (componentName === name ||
+      // testComponent -> TestComponent
+      componentName === capitalize(name) ||
+      // test-component -> TestComponent
+      componentName === capitalize(camelize(name)) ||
+      // same match as above, but the component name vs query
+      capitalize(camelize(componentName)) === name)
+  )
+}
+
+function vmCtorMatches(vm, component) {
+  if (
+    (vm.$options && vm.$options.$_vueTestUtils_original === component) ||
+    vm.$_vueTestUtils_original === component
+  ) {
+    return true
+  }
+
+  var Ctor = isConstructor(component)
+    ? component.options._Ctor
+    : component._Ctor;
+
+  if (!Ctor) {
+    return false
+  }
+
+  if (vm.constructor.extendOptions === component) {
+    return true
+  }
+
+  if (component.functional) {
+    return Object.keys(vm._Ctor || {}).some(function (c) {
+      return component === vm._Ctor[c].extendOptions
+    })
+  }
+}
+
+function matches(node, selector) {
+  if (selector.type === DOM_SELECTOR) {
+    var element = node instanceof Element ? node : node.elm;
+    return element && element.matches && element.matches(selector.value)
+  }
+
+  var isFunctionalSelector = isConstructor(selector.value)
+    ? selector.value.options.functional
+    : selector.value.functional;
+
+  var componentInstance =
+    (isFunctionalSelector ? node[FUNCTIONAL_OPTIONS] : node.child) ||
+    node[FUNCTIONAL_OPTIONS] ||
+    node.child;
+
+  if (!componentInstance) {
+    return false
+  }
+
+  if (selector.type === COMPONENT_SELECTOR) {
+    if (vmCtorMatches(componentInstance, selector.value)) {
+      return true
+    }
+  }
+
+  // Fallback to name selector for COMPONENT_SELECTOR for Vue < 2.1
+  var nameSelector = isConstructor(selector.value)
+    ? selector.value.extendOptions.name
+    : selector.value.name;
+  return vmMatchesName(componentInstance, nameSelector)
+}
+
+// 
+
+/**
+ * Traverses a vue instance for its parents and returns them in an array format
+ * @param {Component} vm
+ * @returns {Component[]} The component and its corresponding parents, in order from left to right
+ */
+function findAllParentInstances(childVm) {
+  var instances = [childVm];
+
+  function getParent(_vm) {
+    if (_vm && _vm.$parent) {
+      instances.push(_vm.$parent);
+      return getParent(_vm.$parent)
+    }
+    return _vm
+  }
+
+  getParent(childVm);
+  return instances
+}
+
+function findAllInstances(rootVm) {
+  var instances = [rootVm];
+  var i = 0;
+  while (i < instances.length) {
+    var vm = instances[i]
+    ;(vm.$children || []).forEach(function (child) {
+      instances.push(child);
+    });
+    i++;
+  }
+  return instances
+}
+
+function findAllVNodes(vnode, selector) {
+  var matchingNodes = [];
+  var nodes = [vnode];
+  while (nodes.length) {
+    var node = nodes.shift();
+    if (node.children) {
+      var children = [].concat( node.children ).reverse();
+      children.forEach(function (n) {
+        nodes.unshift(n);
+      });
+    }
+    if (node.child) {
+      nodes.unshift(node.child._vnode);
+    }
+    if (matches(node, selector)) {
+      matchingNodes.push(node);
+    }
+  }
+
+  return matchingNodes
+}
+
+function removeDuplicateNodes(vNodes) {
+  var vNodeElms = vNodes.map(function (vNode) { return vNode.elm; });
+  return vNodes.filter(function (vNode, index) { return index === vNodeElms.indexOf(vNode.elm); })
+}
+
+function find(
+  root,
+  vm,
+  selector
+) {
+  if (root instanceof Element && selector.type !== DOM_SELECTOR) {
+    throwError(
+      "cannot find a Vue instance on a DOM node. The node " +
+        "you are calling find on does not exist in the " +
+        "VDom. Are you adding the node as innerHTML?"
+    );
+  }
+
+  if (
+    selector.type === COMPONENT_SELECTOR &&
+    (selector.value.functional ||
+      (selector.value.options && selector.value.options.functional)) &&
+    VUE_VERSION < 2.3
+  ) {
+    throwError(
+      "find for functional components is not supported " + "in Vue < 2.3"
+    );
+  }
+
+  if (root instanceof Element) {
+    return findDOMNodes(root, selector.value)
+  }
+
+  if (!root && selector.type !== DOM_SELECTOR) {
+    throwError(
+      "cannot find a Vue instance on a DOM node. The node " +
+        "you are calling find on does not exist in the " +
+        "VDom. Are you adding the node as innerHTML?"
+    );
+  }
+
+  if (!vm && selector.type === REF_SELECTOR) {
+    throwError("$ref selectors can only be used on Vue component " + "wrappers");
+  }
+
+  if (vm && vm.$refs && selector.value.ref in vm.$refs) {
+    var refs = vm.$refs[selector.value.ref];
+    return Array.isArray(refs) ? refs : [refs]
+  }
+
+  var nodes = findAllVNodes(root, selector);
+  var dedupedNodes = removeDuplicateNodes(nodes);
+
+  if (nodes.length > 0 || selector.type !== DOM_SELECTOR) {
+    return dedupedNodes
+  }
+
+  // Fallback in case element exists in HTML, but not in vnode tree
+  // (e.g. if innerHTML is set as a domProp)
+  return findDOMNodes(root.elm, selector.value)
+}
+
+function errorHandler(errorOrString, vm, info) {
+  var error =
+    typeof errorOrString === 'object' ? errorOrString : new Error(errorOrString);
+
+  // If a user defined errorHandler was register via createLocalVue
+  // find and call the user defined errorHandler
+  var instancedErrorHandlers = findAllParentInstances(vm)
+    .filter(
+      function (_vm) { return _vm &&
+        _vm.$options &&
+        _vm.$options.localVue &&
+        _vm.$options.localVue.config &&
+        _vm.$options.localVue.config.errorHandler; }
+    )
+    .map(function (_vm) { return _vm.$options.localVue.config.errorHandler; });
+
+  if (vm) {
+    vm._error = error;
+  }
+
+  if (!instancedErrorHandlers.length) {
+    throw error
+  }
+  // should be one error handler, as only once can be registered with local vue
+  // regardless, if more exist (for whatever reason), invoke the other user defined error handlers
+  instancedErrorHandlers.forEach(function (instancedErrorHandler) {
+    instancedErrorHandler(error, vm, info);
+  });
+}
+
+function throwIfInstancesThrew(vm) {
+  var instancesWithError = findAllInstances(vm).filter(function (_vm) { return _vm._error; });
+
+  if (instancesWithError.length > 0) {
+    throw instancesWithError[0]._error
+  }
+}
+
+var hasWarned = false;
+
+// Vue swallows errors thrown by instances, even if the global error handler
+// throws. In order to throw in the test, we add an _error property to an
+// instance when it throws. Then we loop through the instances with
+// throwIfInstancesThrew and throw an error in the test context if any
+// instances threw.
+function addGlobalErrorHandler(_Vue) {
+  var existingErrorHandler = _Vue.config.errorHandler;
+
+  if (existingErrorHandler === errorHandler) {
+    return
+  }
+
+  if (_Vue.config.errorHandler && !hasWarned) {
+    warn(
+      "Global error handler detected (Vue.config.errorHandler). \n" +
+        "Vue Test Utils sets a custom error handler to throw errors " +
+        "thrown by instances. If you want this behavior in " +
+        "your tests, you must remove the global error handler."
+    );
+    hasWarned = true;
+  } else {
+    _Vue.config.errorHandler = errorHandler;
+  }
+}
+
+function normalizeStubs(stubs) {
+  if ( stubs === void 0 ) stubs = {};
+
+  if (stubs === false) {
+    return false
+  }
+  if (isPlainObject(stubs)) {
+    return stubs
+  }
+  if (Array.isArray(stubs)) {
+    return stubs.reduce(function (acc, stub) {
+      if (typeof stub !== 'string') {
+        throwError('each item in an options.stubs array must be a string');
+      }
+      acc[stub] = true;
+      return acc
+    }, {})
+  }
+  throwError('options.stubs must be an object or an Array');
+}
+
+function normalizeProvide(provide) {
+  // Objects are not resolved in extended components in Vue < 2.5
+  // https://github.com/vuejs/vue/issues/6436
+  if (typeof provide === 'object' && VUE_VERSION < 2.5) {
+    var obj = Object.assign({}, provide);
+    return function () { return obj; }
+  }
+  return provide
+}
+
+// 
+
+function getOption(option, config) {
+  if (option === false) {
+    return false
+  }
+  if (option || (config && Object.keys(config).length > 0)) {
+    if (option instanceof Function) {
+      return option
+    }
+    if (config instanceof Function) {
+      throw new Error("Config can't be a Function.")
+    }
+    return Object.assign({}, config,
+      option)
+  }
+}
+
+function getStubs(stubs, configStubs) {
+  var normalizedStubs = normalizeStubs(stubs);
+  var normalizedConfigStubs = normalizeStubs(configStubs);
+  return getOption(normalizedStubs, normalizedConfigStubs)
+}
+
+function mergeOptions(
+  options,
+  config
+) {
+  var mocks = (getOption(options.mocks, config.mocks));
+  var methods = (getOption(options.methods, config.methods));
+  if (methods && Object.keys(methods).length) {
+    warnDeprecated(
+      'overwriting methods via the `methods` property',
+      'There is no clear migration path for the `methods` property - Vue does not support arbitrarily replacement of methods, nor should VTU. To stub a complex method extract it from the component and test it in isolation. Otherwise, the suggestion is to rethink those tests'
+    );
+  }
+
+  var provide = (getOption(options.provide, config.provide));
+  var stubs = (getStubs(options.stubs, config.stubs));
+  // $FlowIgnore
+  return Object.assign({}, options,
+    {provide: normalizeProvide(provide),
+    stubs: stubs,
+    mocks: mocks,
+    methods: methods})
+}
+
+var config = {
+  stubs: {
+    transition: true,
+    'transition-group': true
+  },
+  mocks: {},
+  methods: {},
+  provide: {},
+  showDeprecationWarnings:
+     true
+};
+
+// 
+
+function warnIfNoWindow() {
+  if (typeof window === 'undefined') {
+    throwError(
+      "window is undefined, vue-test-utils needs to be " +
+        "run in a browser environment. \n" +
+        "You can run the tests in node using jsdom \n" +
+        "See https://vue-test-utils.vuejs.org/guides/#browser-environment " +
+        "for more details."
+    );
+  }
+}
+
+function polyfill() {
+  // Polyfill `Element.matches()` for IE and older versions of Chrome:
+  // https://developer.mozilla.org/en-US/docs/Web/API/Element/matches#Polyfill
+  if (!Element.prototype.matches) {
+    Element.prototype.matches =
+      Element.prototype.msMatchesSelector ||
+      Element.prototype.webkitMatchesSelector;
+  }
+}
+
+/*jshint node:true */
+
+function OutputLine(parent) {
+  this.__parent = parent;
+  this.__character_count = 0;
+  // use indent_count as a marker for this.__lines that have preserved indentation
+  this.__indent_count = -1;
+  this.__alignment_count = 0;
+  this.__wrap_point_index = 0;
+  this.__wrap_point_character_count = 0;
+  this.__wrap_point_indent_count = -1;
+  this.__wrap_point_alignment_count = 0;
+
+  this.__items = [];
+}
+
+OutputLine.prototype.clone_empty = function() {
+  var line = new OutputLine(this.__parent);
+  line.set_indent(this.__indent_count, this.__alignment_count);
+  return line;
+};
+
+OutputLine.prototype.item = function(index) {
+  if (index < 0) {
+    return this.__items[this.__items.length + index];
+  } else {
+    return this.__items[index];
+  }
+};
+
+OutputLine.prototype.has_match = function(pattern) {
+  for (var lastCheckedOutput = this.__items.length - 1; lastCheckedOutput >= 0; lastCheckedOutput--) {
+    if (this.__items[lastCheckedOutput].match(pattern)) {
+      return true;
+    }
+  }
+  return false;
+};
+
+OutputLine.prototype.set_indent = function(indent, alignment) {
+  if (this.is_empty()) {
+    this.__indent_count = indent || 0;
+    this.__alignment_count = alignment || 0;
+    this.__character_count = this.__parent.get_indent_size(this.__indent_count, this.__alignment_count);
+  }
+};
+
+OutputLine.prototype._set_wrap_point = function() {
+  if (this.__parent.wrap_line_length) {
+    this.__wrap_point_index = this.__items.length;
+    this.__wrap_point_character_count = this.__character_count;
+    this.__wrap_point_indent_count = this.__parent.next_line.__indent_count;
+    this.__wrap_point_alignment_count = this.__parent.next_line.__alignment_count;
+  }
+};
+
+OutputLine.prototype._should_wrap = function() {
+  return this.__wrap_point_index &&
+    this.__character_count > this.__parent.wrap_line_length &&
+    this.__wrap_point_character_count > this.__parent.next_line.__character_count;
+};
+
+OutputLine.prototype._allow_wrap = function() {
+  if (this._should_wrap()) {
+    this.__parent.add_new_line();
+    var next = this.__parent.current_line;
+    next.set_indent(this.__wrap_point_indent_count, this.__wrap_point_alignment_count);
+    next.__items = this.__items.slice(this.__wrap_point_index);
+    this.__items = this.__items.slice(0, this.__wrap_point_index);
+
+    next.__character_count += this.__character_count - this.__wrap_point_character_count;
+    this.__character_count = this.__wrap_point_character_count;
+
+    if (next.__items[0] === " ") {
+      next.__items.splice(0, 1);
+      next.__character_count -= 1;
+    }
+    return true;
+  }
+  return false;
+};
+
+OutputLine.prototype.is_empty = function() {
+  return this.__items.length === 0;
+};
+
+OutputLine.prototype.last = function() {
+  if (!this.is_empty()) {
+    return this.__items[this.__items.length - 1];
+  } else {
+    return null;
+  }
+};
+
+OutputLine.prototype.push = function(item) {
+  this.__items.push(item);
+  var last_newline_index = item.lastIndexOf('\n');
+  if (last_newline_index !== -1) {
+    this.__character_count = item.length - last_newline_index;
+  } else {
+    this.__character_count += item.length;
+  }
+};
+
+OutputLine.prototype.pop = function() {
+  var item = null;
+  if (!this.is_empty()) {
+    item = this.__items.pop();
+    this.__character_count -= item.length;
+  }
+  return item;
+};
+
+
+OutputLine.prototype._remove_indent = function() {
+  if (this.__indent_count > 0) {
+    this.__indent_count -= 1;
+    this.__character_count -= this.__parent.indent_size;
+  }
+};
+
+OutputLine.prototype._remove_wrap_indent = function() {
+  if (this.__wrap_point_indent_count > 0) {
+    this.__wrap_point_indent_count -= 1;
+  }
+};
+OutputLine.prototype.trim = function() {
+  while (this.last() === ' ') {
+    this.__items.pop();
+    this.__character_count -= 1;
+  }
+};
+
+OutputLine.prototype.toString = function() {
+  var result = '';
+  if (this.is_empty()) {
+    if (this.__parent.indent_empty_lines) {
+      result = this.__parent.get_indent_string(this.__indent_count);
+    }
+  } else {
+    result = this.__parent.get_indent_string(this.__indent_count, this.__alignment_count);
+    result += this.__items.join('');
+  }
+  return result;
+};
+
+function IndentStringCache(options, baseIndentString) {
+  this.__cache = [''];
+  this.__indent_size = options.indent_size;
+  this.__indent_string = options.indent_char;
+  if (!options.indent_with_tabs) {
+    this.__indent_string = new Array(options.indent_size + 1).join(options.indent_char);
+  }
+
+  // Set to null to continue support for auto detection of base indent
+  baseIndentString = baseIndentString || '';
+  if (options.indent_level > 0) {
+    baseIndentString = new Array(options.indent_level + 1).join(this.__indent_string);
+  }
+
+  this.__base_string = baseIndentString;
+  this.__base_string_length = baseIndentString.length;
+}
+
+IndentStringCache.prototype.get_indent_size = function(indent, column) {
+  var result = this.__base_string_length;
+  column = column || 0;
+  if (indent < 0) {
+    result = 0;
+  }
+  result += indent * this.__indent_size;
+  result += column;
+  return result;
+};
+
+IndentStringCache.prototype.get_indent_string = function(indent_level, column) {
+  var result = this.__base_string;
+  column = column || 0;
+  if (indent_level < 0) {
+    indent_level = 0;
+    result = '';
+  }
+  column += indent_level * this.__indent_size;
+  this.__ensure_cache(column);
+  result += this.__cache[column];
+  return result;
+};
+
+IndentStringCache.prototype.__ensure_cache = function(column) {
+  while (column >= this.__cache.length) {
+    this.__add_column();
+  }
+};
+
+IndentStringCache.prototype.__add_column = function() {
+  var column = this.__cache.length;
+  var indent = 0;
+  var result = '';
+  if (this.__indent_size && column >= this.__indent_size) {
+    indent = Math.floor(column / this.__indent_size);
+    column -= indent * this.__indent_size;
+    result = new Array(indent + 1).join(this.__indent_string);
+  }
+  if (column) {
+    result += new Array(column + 1).join(' ');
+  }
+
+  this.__cache.push(result);
+};
+
+function Output(options, baseIndentString) {
+  this.__indent_cache = new IndentStringCache(options, baseIndentString);
+  this.raw = false;
+  this._end_with_newline = options.end_with_newline;
+  this.indent_size = options.indent_size;
+  this.wrap_line_length = options.wrap_line_length;
+  this.indent_empty_lines = options.indent_empty_lines;
+  this.__lines = [];
+  this.previous_line = null;
+  this.current_line = null;
+  this.next_line = new OutputLine(this);
+  this.space_before_token = false;
+  this.non_breaking_space = false;
+  this.previous_token_wrapped = false;
+  // initialize
+  this.__add_outputline();
+}
+
+Output.prototype.__add_outputline = function() {
+  this.previous_line = this.current_line;
+  this.current_line = this.next_line.clone_empty();
+  this.__lines.push(this.current_line);
+};
+
+Output.prototype.get_line_number = function() {
+  return this.__lines.length;
+};
+
+Output.prototype.get_indent_string = function(indent, column) {
+  return this.__indent_cache.get_indent_string(indent, column);
+};
+
+Output.prototype.get_indent_size = function(indent, column) {
+  return this.__indent_cache.get_indent_size(indent, column);
+};
+
+Output.prototype.is_empty = function() {
+  return !this.previous_line && this.current_line.is_empty();
+};
+
+Output.prototype.add_new_line = function(force_newline) {
+  // never newline at the start of file
+  // otherwise, newline only if we didn't just add one or we're forced
+  if (this.is_empty() ||
+    (!force_newline && this.just_added_newline())) {
+    return false;
+  }
+
+  // if raw output is enabled, don't print additional newlines,
+  // but still return True as though you had
+  if (!this.raw) {
+    this.__add_outputline();
+  }
+  return true;
+};
+
+Output.prototype.get_code = function(eol) {
+  this.trim(true);
+
+  // handle some edge cases where the last tokens
+  // has text that ends with newline(s)
+  var last_item = this.current_line.pop();
+  if (last_item) {
+    if (last_item[last_item.length - 1] === '\n') {
+      last_item = last_item.replace(/\n+$/g, '');
+    }
+    this.current_line.push(last_item);
+  }
+
+  if (this._end_with_newline) {
+    this.__add_outputline();
+  }
+
+  var sweet_code = this.__lines.join('\n');
+
+  if (eol !== '\n') {
+    sweet_code = sweet_code.replace(/[\n]/g, eol);
+  }
+  return sweet_code;
+};
+
+Output.prototype.set_wrap_point = function() {
+  this.current_line._set_wrap_point();
+};
+
+Output.prototype.set_indent = function(indent, alignment) {
+  indent = indent || 0;
+  alignment = alignment || 0;
+
+  // Next line stores alignment values
+  this.next_line.set_indent(indent, alignment);
+
+  // Never indent your first output indent at the start of the file
+  if (this.__lines.length > 1) {
+    this.current_line.set_indent(indent, alignment);
+    return true;
+  }
+
+  this.current_line.set_indent();
+  return false;
+};
+
+Output.prototype.add_raw_token = function(token) {
+  for (var x = 0; x < token.newlines; x++) {
+    this.__add_outputline();
+  }
+  this.current_line.set_indent(-1);
+  this.current_line.push(token.whitespace_before);
+  this.current_line.push(token.text);
+  this.space_before_token = false;
+  this.non_breaking_space = false;
+  this.previous_token_wrapped = false;
+};
+
+Output.prototype.add_token = function(printable_token) {
+  this.__add_space_before_token();
+  this.current_line.push(printable_token);
+  this.space_before_token = false;
+  this.non_breaking_space = false;
+  this.previous_token_wrapped = this.current_line._allow_wrap();
+};
+
+Output.prototype.__add_space_before_token = function() {
+  if (this.space_before_token && !this.just_added_newline()) {
+    if (!this.non_breaking_space) {
+      this.set_wrap_point();
+    }
+    this.current_line.push(' ');
+  }
+};
+
+Output.prototype.remove_indent = function(index) {
+  var output_length = this.__lines.length;
+  while (index < output_length) {
+    this.__lines[index]._remove_indent();
+    index++;
+  }
+  this.current_line._remove_wrap_indent();
+};
+
+Output.prototype.trim = function(eat_newlines) {
+  eat_newlines = (eat_newlines === undefined) ? false : eat_newlines;
+
+  this.current_line.trim();
+
+  while (eat_newlines && this.__lines.length > 1 &&
+    this.current_line.is_empty()) {
+    this.__lines.pop();
+    this.current_line = this.__lines[this.__lines.length - 1];
+    this.current_line.trim();
+  }
+
+  this.previous_line = this.__lines.length > 1 ?
+    this.__lines[this.__lines.length - 2] : null;
+};
+
+Output.prototype.just_added_newline = function() {
+  return this.current_line.is_empty();
+};
+
+Output.prototype.just_added_blankline = function() {
+  return this.is_empty() ||
+    (this.current_line.is_empty() && this.previous_line.is_empty());
+};
+
+Output.prototype.ensure_empty_line_above = function(starts_with, ends_with) {
+  var index = this.__lines.length - 2;
+  while (index >= 0) {
+    var potentialEmptyLine = this.__lines[index];
+    if (potentialEmptyLine.is_empty()) {
+      break;
+    } else if (potentialEmptyLine.item(0).indexOf(starts_with) !== 0 &&
+      potentialEmptyLine.item(-1) !== ends_with) {
+      this.__lines.splice(index + 1, 0, new OutputLine(this));
+      this.previous_line = this.__lines[this.__lines.length - 2];
+      break;
+    }
+    index--;
+  }
+};
+
+var Output_1 = Output;
+
+var output = {
+	Output: Output_1
+};
+
+/*jshint node:true */
+
+function Token(type, text, newlines, whitespace_before) {
+  this.type = type;
+  this.text = text;
+
+  // comments_before are
+  // comments that have a new line before them
+  // and may or may not have a newline after
+  // this is a set of comments before
+  this.comments_before = null; /* inline comment*/
+
+
+  // this.comments_after =  new TokenStream(); // no new line before and newline after
+  this.newlines = newlines || 0;
+  this.whitespace_before = whitespace_before || '';
+  this.parent = null;
+  this.next = null;
+  this.previous = null;
+  this.opened = null;
+  this.closed = null;
+  this.directives = null;
+}
+
+
+var Token_1 = Token;
+
+var token = {
+	Token: Token_1
+};
+
+var acorn = createCommonjsModule(function (module, exports) {
+
+// acorn used char codes to squeeze the last bit of performance out
+// Beautifier is okay without that, so we're using regex
+// permit $ (36) and @ (64). @ is used in ES7 decorators.
+// 65 through 91 are uppercase letters.
+// permit _ (95).
+// 97 through 123 are lowercase letters.
+var baseASCIIidentifierStartChars = "\\x24\\x40\\x41-\\x5a\\x5f\\x61-\\x7a";
+
+// inside an identifier @ is not allowed but 0-9 are.
+var baseASCIIidentifierChars = "\\x24\\x30-\\x39\\x41-\\x5a\\x5f\\x61-\\x7a";
+
+// Big ugly regular expressions that match characters in the
+// whitespace, identifier, and identifier-start categories. These
+// are only applied when a character is found to actually have a
+// code point above 128.
+var nonASCIIidentifierStartChars = "\\xaa\\xb5\\xba\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\u02c1\\u02c6-\\u02d1\\u02e0-\\u02e4\\u02ec\\u02ee\\u0370-\\u0374\\u0376\\u0377\\u037a-\\u037d\\u0386\\u0388-\\u038a\\u038c\\u038e-\\u03a1\\u03a3-\\u03f5\\u03f7-\\u0481\\u048a-\\u0527\\u0531-\\u0556\\u0559\\u0561-\\u0587\\u05d0-\\u05ea\\u05f0-\\u05f2\\u0620-\\u064a\\u066e\\u066f\\u0671-\\u06d3\\u06d5\\u06e5\\u06e6\\u06ee\\u06ef\\u06fa-\\u06fc\\u06ff\\u0710\\u0712-\\u072f\\u074d-\\u07a5\\u07b1\\u07ca-\\u07ea\\u07f4\\u07f5\\u07fa\\u0800-\\u0815\\u081a\\u0824\\u0828\\u0840-\\u0858\\u08a0\\u08a2-\\u08ac\\u0904-\\u0939\\u093d\\u0950\\u0958-\\u0961\\u0971-\\u0977\\u0979-\\u097f\\u0985-\\u098c\\u098f\\u0990\\u0993-\\u09a8\\u09aa-\\u09b0\\u09b2\\u09b6-\\u09b9\\u09bd\\u09ce\\u09dc\\u09dd\\u09df-\\u09e1\\u09f0\\u09f1\\u0a05-\\u0a0a\\u0a0f\\u0a10\\u0a13-\\u0a28\\u0a2a-\\u0a30\\u0a32\\u0a33\\u0a35\\u0a36\\u0a38\\u0a39\\u0a59-\\u0a5c\\u0a5e\\u0a72-\\u0a74\\u0a85-\\u0a8d\\u0a8f-\\u0a91\\u0a93-\\u0aa8\\u0aaa-\\u0ab0\\u0ab2\\u0ab3\\u0ab5-\\u0ab9\\u0abd\\u0ad0\\u0ae0\\u0ae1\\u0b05-\\u0b0c\\u0b0f\\u0b10\\u0b13-\\u0b28\\u0b2a-\\u0b30\\u0b32\\u0b33\\u0b35-\\u0b39\\u0b3d\\u0b5c\\u0b5d\\u0b5f-\\u0b61\\u0b71\\u0b83\\u0b85-\\u0b8a\\u0b8e-\\u0b90\\u0b92-\\u0b95\\u0b99\\u0b9a\\u0b9c\\u0b9e\\u0b9f\\u0ba3\\u0ba4\\u0ba8-\\u0baa\\u0bae-\\u0bb9\\u0bd0\\u0c05-\\u0c0c\\u0c0e-\\u0c10\\u0c12-\\u0c28\\u0c2a-\\u0c33\\u0c35-\\u0c39\\u0c3d\\u0c58\\u0c59\\u0c60\\u0c61\\u0c85-\\u0c8c\\u0c8e-\\u0c90\\u0c92-\\u0ca8\\u0caa-\\u0cb3\\u0cb5-\\u0cb9\\u0cbd\\u0cde\\u0ce0\\u0ce1\\u0cf1\\u0cf2\\u0d05-\\u0d0c\\u0d0e-\\u0d10\\u0d12-\\u0d3a\\u0d3d\\u0d4e\\u0d60\\u0d61\\u0d7a-\\u0d7f\\u0d85-\\u0d96\\u0d9a-\\u0db1\\u0db3-\\u0dbb\\u0dbd\\u0dc0-\\u0dc6\\u0e01-\\u0e30\\u0e32\\u0e33\\u0e40-\\u0e46\\u0e81\\u0e82\\u0e84\\u0e87\\u0e88\\u0e8a\\u0e8d\\u0e94-\\u0e97\\u0e99-\\u0e9f\\u0ea1-\\u0ea3\\u0ea5\\u0ea7\\u0eaa\\u0eab\\u0ead-\\u0eb0\\u0eb2\\u0eb3\\u0ebd\\u0ec0-\\u0ec4\\u0ec6\\u0edc-\\u0edf\\u0f00\\u0f40-\\u0f47\\u0f49-\\u0f6c\\u0f88-\\u0f8c\\u1000-\\u102a\\u103f\\u1050-\\u1055\\u105a-\\u105d\\u1061\\u1065\\u1066\\u106e-\\u1070\\u1075-\\u1081\\u108e\\u10a0-\\u10c5\\u10c7\\u10cd\\u10d0-\\u10fa\\u10fc-\\u1248\\u124a-\\u124d\\u1250-\\u1256\\u1258\\u125a-\\u125d\\u1260-\\u1288\\u128a-\\u128d\\u1290-\\u12b0\\u12b2-\\u12b5\\u12b8-\\u12be\\u12c0\\u12c2-\\u12c5\\u12c8-\\u12d6\\u12d8-\\u1310\\u1312-\\u1315\\u1318-\\u135a\\u1380-\\u138f\\u13a0-\\u13f4\\u1401-\\u166c\\u166f-\\u167f\\u1681-\\u169a\\u16a0-\\u16ea\\u16ee-\\u16f0\\u1700-\\u170c\\u170e-\\u1711\\u1720-\\u1731\\u1740-\\u1751\\u1760-\\u176c\\u176e-\\u1770\\u1780-\\u17b3\\u17d7\\u17dc\\u1820-\\u1877\\u1880-\\u18a8\\u18aa\\u18b0-\\u18f5\\u1900-\\u191c\\u1950-\\u196d\\u1970-\\u1974\\u1980-\\u19ab\\u19c1-\\u19c7\\u1a00-\\u1a16\\u1a20-\\u1a54\\u1aa7\\u1b05-\\u1b33\\u1b45-\\u1b4b\\u1b83-\\u1ba0\\u1bae\\u1baf\\u1bba-\\u1be5\\u1c00-\\u1c23\\u1c4d-\\u1c4f\\u1c5a-\\u1c7d\\u1ce9-\\u1cec\\u1cee-\\u1cf1\\u1cf5\\u1cf6\\u1d00-\\u1dbf\\u1e00-\\u1f15\\u1f18-\\u1f1d\\u1f20-\\u1f45\\u1f48-\\u1f4d\\u1f50-\\u1f57\\u1f59\\u1f5b\\u1f5d\\u1f5f-\\u1f7d\\u1f80-\\u1fb4\\u1fb6-\\u1fbc\\u1fbe\\u1fc2-\\u1fc4\\u1fc6-\\u1fcc\\u1fd0-\\u1fd3\\u1fd6-\\u1fdb\\u1fe0-\\u1fec\\u1ff2-\\u1ff4\\u1ff6-\\u1ffc\\u2071\\u207f\\u2090-\\u209c\\u2102\\u2107\\u210a-\\u2113\\u2115\\u2119-\\u211d\\u2124\\u2126\\u2128\\u212a-\\u212d\\u212f-\\u2139\\u213c-\\u213f\\u2145-\\u2149\\u214e\\u2160-\\u2188\\u2c00-\\u2c2e\\u2c30-\\u2c5e\\u2c60-\\u2ce4\\u2ceb-\\u2cee\\u2cf2\\u2cf3\\u2d00-\\u2d25\\u2d27\\u2d2d\\u2d30-\\u2d67\\u2d6f\\u2d80-\\u2d96\\u2da0-\\u2da6\\u2da8-\\u2dae\\u2db0-\\u2db6\\u2db8-\\u2dbe\\u2dc0-\\u2dc6\\u2dc8-\\u2dce\\u2dd0-\\u2dd6\\u2dd8-\\u2dde\\u2e2f\\u3005-\\u3007\\u3021-\\u3029\\u3031-\\u3035\\u3038-\\u303c\\u3041-\\u3096\\u309d-\\u309f\\u30a1-\\u30fa\\u30fc-\\u30ff\\u3105-\\u312d\\u3131-\\u318e\\u31a0-\\u31ba\\u31f0-\\u31ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\ua000-\\ua48c\\ua4d0-\\ua4fd\\ua500-\\ua60c\\ua610-\\ua61f\\ua62a\\ua62b\\ua640-\\ua66e\\ua67f-\\ua697\\ua6a0-\\ua6ef\\ua717-\\ua71f\\ua722-\\ua788\\ua78b-\\ua78e\\ua790-\\ua793\\ua7a0-\\ua7aa\\ua7f8-\\ua801\\ua803-\\ua805\\ua807-\\ua80a\\ua80c-\\ua822\\ua840-\\ua873\\ua882-\\ua8b3\\ua8f2-\\ua8f7\\ua8fb\\ua90a-\\ua925\\ua930-\\ua946\\ua960-\\ua97c\\ua984-\\ua9b2\\ua9cf\\uaa00-\\uaa28\\uaa40-\\uaa42\\uaa44-\\uaa4b\\uaa60-\\uaa76\\uaa7a\\uaa80-\\uaaaf\\uaab1\\uaab5\\uaab6\\uaab9-\\uaabd\\uaac0\\uaac2\\uaadb-\\uaadd\\uaae0-\\uaaea\\uaaf2-\\uaaf4\\uab01-\\uab06\\uab09-\\uab0e\\uab11-\\uab16\\uab20-\\uab26\\uab28-\\uab2e\\uabc0-\\uabe2\\uac00-\\ud7a3\\ud7b0-\\ud7c6\\ud7cb-\\ud7fb\\uf900-\\ufa6d\\ufa70-\\ufad9\\ufb00-\\ufb06\\ufb13-\\ufb17\\ufb1d\\ufb1f-\\ufb28\\ufb2a-\\ufb36\\ufb38-\\ufb3c\\ufb3e\\ufb40\\ufb41\\ufb43\\ufb44\\ufb46-\\ufbb1\\ufbd3-\\ufd3d\\ufd50-\\ufd8f\\ufd92-\\ufdc7\\ufdf0-\\ufdfb\\ufe70-\\ufe74\\ufe76-\\ufefc\\uff21-\\uff3a\\uff41-\\uff5a\\uff66-\\uffbe\\uffc2-\\uffc7\\uffca-\\uffcf\\uffd2-\\uffd7\\uffda-\\uffdc";
+var nonASCIIidentifierChars = "\\u0300-\\u036f\\u0483-\\u0487\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u0620-\\u0649\\u0672-\\u06d3\\u06e7-\\u06e8\\u06fb-\\u06fc\\u0730-\\u074a\\u0800-\\u0814\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0840-\\u0857\\u08e4-\\u08fe\\u0900-\\u0903\\u093a-\\u093c\\u093e-\\u094f\\u0951-\\u0957\\u0962-\\u0963\\u0966-\\u096f\\u0981-\\u0983\\u09bc\\u09be-\\u09c4\\u09c7\\u09c8\\u09d7\\u09df-\\u09e0\\u0a01-\\u0a03\\u0a3c\\u0a3e-\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a66-\\u0a71\\u0a75\\u0a81-\\u0a83\\u0abc\\u0abe-\\u0ac5\\u0ac7-\\u0ac9\\u0acb-\\u0acd\\u0ae2-\\u0ae3\\u0ae6-\\u0aef\\u0b01-\\u0b03\\u0b3c\\u0b3e-\\u0b44\\u0b47\\u0b48\\u0b4b-\\u0b4d\\u0b56\\u0b57\\u0b5f-\\u0b60\\u0b66-\\u0b6f\\u0b82\\u0bbe-\\u0bc2\\u0bc6-\\u0bc8\\u0bca-\\u0bcd\\u0bd7\\u0be6-\\u0bef\\u0c01-\\u0c03\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62-\\u0c63\\u0c66-\\u0c6f\\u0c82\\u0c83\\u0cbc\\u0cbe-\\u0cc4\\u0cc6-\\u0cc8\\u0cca-\\u0ccd\\u0cd5\\u0cd6\\u0ce2-\\u0ce3\\u0ce6-\\u0cef\\u0d02\\u0d03\\u0d46-\\u0d48\\u0d57\\u0d62-\\u0d63\\u0d66-\\u0d6f\\u0d82\\u0d83\\u0dca\\u0dcf-\\u0dd4\\u0dd6\\u0dd8-\\u0ddf\\u0df2\\u0df3\\u0e34-\\u0e3a\\u0e40-\\u0e45\\u0e50-\\u0e59\\u0eb4-\\u0eb9\\u0ec8-\\u0ecd\\u0ed0-\\u0ed9\\u0f18\\u0f19\\u0f20-\\u0f29\\u0f35\\u0f37\\u0f39\\u0f41-\\u0f47\\u0f71-\\u0f84\\u0f86-\\u0f87\\u0f8d-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u1000-\\u1029\\u1040-\\u1049\\u1067-\\u106d\\u1071-\\u1074\\u1082-\\u108d\\u108f-\\u109d\\u135d-\\u135f\\u170e-\\u1710\\u1720-\\u1730\\u1740-\\u1750\\u1772\\u1773\\u1780-\\u17b2\\u17dd\\u17e0-\\u17e9\\u180b-\\u180d\\u1810-\\u1819\\u1920-\\u192b\\u1930-\\u193b\\u1951-\\u196d\\u19b0-\\u19c0\\u19c8-\\u19c9\\u19d0-\\u19d9\\u1a00-\\u1a15\\u1a20-\\u1a53\\u1a60-\\u1a7c\\u1a7f-\\u1a89\\u1a90-\\u1a99\\u1b46-\\u1b4b\\u1b50-\\u1b59\\u1b6b-\\u1b73\\u1bb0-\\u1bb9\\u1be6-\\u1bf3\\u1c00-\\u1c22\\u1c40-\\u1c49\\u1c5b-\\u1c7d\\u1cd0-\\u1cd2\\u1d00-\\u1dbe\\u1e01-\\u1f15\\u200c\\u200d\\u203f\\u2040\\u2054\\u20d0-\\u20dc\\u20e1\\u20e5-\\u20f0\\u2d81-\\u2d96\\u2de0-\\u2dff\\u3021-\\u3028\\u3099\\u309a\\ua640-\\ua66d\\ua674-\\ua67d\\ua69f\\ua6f0-\\ua6f1\\ua7f8-\\ua800\\ua806\\ua80b\\ua823-\\ua827\\ua880-\\ua881\\ua8b4-\\ua8c4\\ua8d0-\\ua8d9\\ua8f3-\\ua8f7\\ua900-\\ua909\\ua926-\\ua92d\\ua930-\\ua945\\ua980-\\ua983\\ua9b3-\\ua9c0\\uaa00-\\uaa27\\uaa40-\\uaa41\\uaa4c-\\uaa4d\\uaa50-\\uaa59\\uaa7b\\uaae0-\\uaae9\\uaaf2-\\uaaf3\\uabc0-\\uabe1\\uabec\\uabed\\uabf0-\\uabf9\\ufb20-\\ufb28\\ufe00-\\ufe0f\\ufe20-\\ufe26\\ufe33\\ufe34\\ufe4d-\\ufe4f\\uff10-\\uff19\\uff3f";
+//var nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]");
+//var nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]");
+
+var identifierStart = "(?:\\\\u[0-9a-fA-F]{4}|[" + baseASCIIidentifierStartChars + nonASCIIidentifierStartChars + "])";
+var identifierChars = "(?:\\\\u[0-9a-fA-F]{4}|[" + baseASCIIidentifierChars + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "])*";
+
+exports.identifier = new RegExp(identifierStart + identifierChars, 'g');
+exports.identifierStart = new RegExp(identifierStart);
+exports.identifierMatch = new RegExp("(?:\\\\u[0-9a-fA-F]{4}|[" + baseASCIIidentifierChars + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "])+");
+
+// Whether a single character denotes a newline.
+
+exports.newline = /[\n\r\u2028\u2029]/;
+
+// Matches a whole line break (where CRLF is considered a single
+// line break). Used to count lines.
+
+// in javascript, these two differ
+// in python they are the same, different methods are called on them
+exports.lineBreak = new RegExp('\r\n|' + exports.newline.source);
+exports.allLineBreaks = new RegExp(exports.lineBreak.source, 'g');
+});
+
+/*jshint node:true */
+
+function Options(options, merge_child_field) {
+  this.raw_options = _mergeOpts(options, merge_child_field);
+
+  // Support passing the source text back with no change
+  this.disabled = this._get_boolean('disabled');
+
+  this.eol = this._get_characters('eol', 'auto');
+  this.end_with_newline = this._get_boolean('end_with_newline');
+  this.indent_size = this._get_number('indent_size', 4);
+  this.indent_char = this._get_characters('indent_char', ' ');
+  this.indent_level = this._get_number('indent_level');
+
+  this.preserve_newlines = this._get_boolean('preserve_newlines', true);
+  this.max_preserve_newlines = this._get_number('max_preserve_newlines', 32786);
+  if (!this.preserve_newlines) {
+    this.max_preserve_newlines = 0;
+  }
+
+  this.indent_with_tabs = this._get_boolean('indent_with_tabs', this.indent_char === '\t');
+  if (this.indent_with_tabs) {
+    this.indent_char = '\t';
+
+    // indent_size behavior changed after 1.8.6
+    // It used to be that indent_size would be
+    // set to 1 for indent_with_tabs. That is no longer needed and
+    // actually doesn't make sense - why not use spaces? Further,
+    // that might produce unexpected behavior - tabs being used
+    // for single-column alignment. So, when indent_with_tabs is true
+    // and indent_size is 1, reset indent_size to 4.
+    if (this.indent_size === 1) {
+      this.indent_size = 4;
+    }
+  }
+
+  // Backwards compat with 1.3.x
+  this.wrap_line_length = this._get_number('wrap_line_length', this._get_number('max_char'));
+
+  this.indent_empty_lines = this._get_boolean('indent_empty_lines');
+
+  // valid templating languages ['django', 'erb', 'handlebars', 'php']
+  // For now, 'auto' = all off for javascript, all on for html (and inline javascript).
+  // other values ignored
+  this.templating = this._get_selection_list('templating', ['auto', 'none', 'django', 'erb', 'handlebars', 'php'], ['auto']);
+}
+
+Options.prototype._get_array = function(name, default_value) {
+  var option_value = this.raw_options[name];
+  var result = default_value || [];
+  if (typeof option_value === 'object') {
+    if (option_value !== null && typeof option_value.concat === 'function') {
+      result = option_value.concat();
+    }
+  } else if (typeof option_value === 'string') {
+    result = option_value.split(/[^a-zA-Z0-9_\/\-]+/);
+  }
+  return result;
+};
+
+Options.prototype._get_boolean = function(name, default_value) {
+  var option_value = this.raw_options[name];
+  var result = option_value === undefined ? !!default_value : !!option_value;
+  return result;
+};
+
+Options.prototype._get_characters = function(name, default_value) {
+  var option_value = this.raw_options[name];
+  var result = default_value || '';
+  if (typeof option_value === 'string') {
+    result = option_value.replace(/\\r/, '\r').replace(/\\n/, '\n').replace(/\\t/, '\t');
+  }
+  return result;
+};
+
+Options.prototype._get_number = function(name, default_value) {
+  var option_value = this.raw_options[name];
+  default_value = parseInt(default_value, 10);
+  if (isNaN(default_value)) {
+    default_value = 0;
+  }
+  var result = parseInt(option_value, 10);
+  if (isNaN(result)) {
+    result = default_value;
+  }
+  return result;
+};
+
+Options.prototype._get_selection = function(name, selection_list, default_value) {
+  var result = this._get_selection_list(name, selection_list, default_value);
+  if (result.length !== 1) {
+    throw new Error(
+      "Invalid Option Value: The option '" + name + "' can only be one of the following values:\n" +
+      selection_list + "\nYou passed in: '" + this.raw_options[name] + "'");
+  }
+
+  return result[0];
+};
+
+
+Options.prototype._get_selection_list = function(name, selection_list, default_value) {
+  if (!selection_list || selection_list.length === 0) {
+    throw new Error("Selection list cannot be empty.");
+  }
+
+  default_value = default_value || [selection_list[0]];
+  if (!this._is_valid_selection(default_value, selection_list)) {
+    throw new Error("Invalid Default Value!");
+  }
+
+  var result = this._get_array(name, default_value);
+  if (!this._is_valid_selection(result, selection_list)) {
+    throw new Error(
+      "Invalid Option Value: The option '" + name + "' can contain only the following values:\n" +
+      selection_list + "\nYou passed in: '" + this.raw_options[name] + "'");
+  }
+
+  return result;
+};
+
+Options.prototype._is_valid_selection = function(result, selection_list) {
+  return result.length && selection_list.length &&
+    !result.some(function(item) { return selection_list.indexOf(item) === -1; });
+};
+
+
+// merges child options up with the parent options object
+// Example: obj = {a: 1, b: {a: 2}}
+//          mergeOpts(obj, 'b')
+//
+//          Returns: {a: 2}
+function _mergeOpts(allOptions, childFieldName) {
+  var finalOpts = {};
+  allOptions = _normalizeOpts(allOptions);
+  var name;
+
+  for (name in allOptions) {
+    if (name !== childFieldName) {
+      finalOpts[name] = allOptions[name];
+    }
+  }
+
+  //merge in the per type settings for the childFieldName
+  if (childFieldName && allOptions[childFieldName]) {
+    for (name in allOptions[childFieldName]) {
+      finalOpts[name] = allOptions[childFieldName][name];
+    }
+  }
+  return finalOpts;
+}
+
+function _normalizeOpts(options) {
+  var convertedOpts = {};
+  var key;
+
+  for (key in options) {
+    var newKey = key.replace(/-/g, "_");
+    convertedOpts[newKey] = options[key];
+  }
+  return convertedOpts;
+}
+
+var Options_1 = Options;
+var normalizeOpts = _normalizeOpts;
+var mergeOpts = _mergeOpts;
+
+var options = {
+	Options: Options_1,
+	normalizeOpts: normalizeOpts,
+	mergeOpts: mergeOpts
+};
+
+var BaseOptions = options.Options;
+
+var validPositionValues = ['before-newline', 'after-newline', 'preserve-newline'];
+
+function Options$1(options) {
+  BaseOptions.call(this, options, 'js');
+
+  // compatibility, re
+  var raw_brace_style = this.raw_options.brace_style || null;
+  if (raw_brace_style === "expand-strict") { //graceful handling of deprecated option
+    this.raw_options.brace_style = "expand";
+  } else if (raw_brace_style === "collapse-preserve-inline") { //graceful handling of deprecated option
+    this.raw_options.brace_style = "collapse,preserve-inline";
+  } else if (this.raw_options.braces_on_own_line !== undefined) { //graceful handling of deprecated option
+    this.raw_options.brace_style = this.raw_options.braces_on_own_line ? "expand" : "collapse";
+    // } else if (!raw_brace_style) { //Nothing exists to set it
+    //   raw_brace_style = "collapse";
+  }
+
+  //preserve-inline in delimited string will trigger brace_preserve_inline, everything
+  //else is considered a brace_style and the last one only will have an effect
+
+  var brace_style_split = this._get_selection_list('brace_style', ['collapse', 'expand', 'end-expand', 'none', 'preserve-inline']);
+
+  this.brace_preserve_inline = false; //Defaults in case one or other was not specified in meta-option
+  this.brace_style = "collapse";
+
+  for (var bs = 0; bs < brace_style_split.length; bs++) {
+    if (brace_style_split[bs] === "preserve-inline") {
+      this.brace_preserve_inline = true;
+    } else {
+      this.brace_style = brace_style_split[bs];
+    }
+  }
+
+  this.unindent_chained_methods = this._get_boolean('unindent_chained_methods');
+  this.break_chained_methods = this._get_boolean('break_chained_methods');
+  this.space_in_paren = this._get_boolean('space_in_paren');
+  this.space_in_empty_paren = this._get_boolean('space_in_empty_paren');
+  this.jslint_happy = this._get_boolean('jslint_happy');
+  this.space_after_anon_function = this._get_boolean('space_after_anon_function');
+  this.space_after_named_function = this._get_boolean('space_after_named_function');
+  this.keep_array_indentation = this._get_boolean('keep_array_indentation');
+  this.space_before_conditional = this._get_boolean('space_before_conditional', true);
+  this.unescape_strings = this._get_boolean('unescape_strings');
+  this.e4x = this._get_boolean('e4x');
+  this.comma_first = this._get_boolean('comma_first');
+  this.operator_position = this._get_selection('operator_position', validPositionValues);
+
+  // For testing of beautify preserve:start directive
+  this.test_output_raw = this._get_boolean('test_output_raw');
+
+  // force this._options.space_after_anon_function to true if this._options.jslint_happy
+  if (this.jslint_happy) {
+    this.space_after_anon_function = true;
+  }
+
+}
+Options$1.prototype = new BaseOptions();
+
+
+
+var Options_1$1 = Options$1;
+
+var options$1 = {
+	Options: Options_1$1
+};
+
+/*jshint node:true */
+
+var regexp_has_sticky = RegExp.prototype.hasOwnProperty('sticky');
+
+function InputScanner(input_string) {
+  this.__input = input_string || '';
+  this.__input_length = this.__input.length;
+  this.__position = 0;
+}
+
+InputScanner.prototype.restart = function() {
+  this.__position = 0;
+};
+
+InputScanner.prototype.back = function() {
+  if (this.__position > 0) {
+    this.__position -= 1;
+  }
+};
+
+InputScanner.prototype.hasNext = function() {
+  return this.__position < this.__input_length;
+};
+
+InputScanner.prototype.next = function() {
+  var val = null;
+  if (this.hasNext()) {
+    val = this.__input.charAt(this.__position);
+    this.__position += 1;
+  }
+  return val;
+};
+
+InputScanner.prototype.peek = function(index) {
+  var val = null;
+  index = index || 0;
+  index += this.__position;
+  if (index >= 0 && index < this.__input_length) {
+    val = this.__input.charAt(index);
+  }
+  return val;
+};
+
+// This is a JavaScript only helper function (not in python)
+// Javascript doesn't have a match method
+// and not all implementation support "sticky" flag.
+// If they do not support sticky then both this.match() and this.test() method
+// must get the match and check the index of the match.
+// If sticky is supported and set, this method will use it.
+// Otherwise it will check that global is set, and fall back to the slower method.
+InputScanner.prototype.__match = function(pattern, index) {
+  pattern.lastIndex = index;
+  var pattern_match = pattern.exec(this.__input);
+
+  if (pattern_match && !(regexp_has_sticky && pattern.sticky)) {
+    if (pattern_match.index !== index) {
+      pattern_match = null;
+    }
+  }
+
+  return pattern_match;
+};
+
+InputScanner.prototype.test = function(pattern, index) {
+  index = index || 0;
+  index += this.__position;
+
+  if (index >= 0 && index < this.__input_length) {
+    return !!this.__match(pattern, index);
+  } else {
+    return false;
+  }
+};
+
+InputScanner.prototype.testChar = function(pattern, index) {
+  // test one character regex match
+  var val = this.peek(index);
+  pattern.lastIndex = 0;
+  return val !== null && pattern.test(val);
+};
+
+InputScanner.prototype.match = function(pattern) {
+  var pattern_match = this.__match(pattern, this.__position);
+  if (pattern_match) {
+    this.__position += pattern_match[0].length;
+  } else {
+    pattern_match = null;
+  }
+  return pattern_match;
+};
+
+InputScanner.prototype.read = function(starting_pattern, until_pattern, until_after) {
+  var val = '';
+  var match;
+  if (starting_pattern) {
+    match = this.match(starting_pattern);
+    if (match) {
+      val += match[0];
+    }
+  }
+  if (until_pattern && (match || !starting_pattern)) {
+    val += this.readUntil(until_pattern, until_after);
+  }
+  return val;
+};
+
+InputScanner.prototype.readUntil = function(pattern, until_after) {
+  var val = '';
+  var match_index = this.__position;
+  pattern.lastIndex = this.__position;
+  var pattern_match = pattern.exec(this.__input);
+  if (pattern_match) {
+    match_index = pattern_match.index;
+    if (until_after) {
+      match_index += pattern_match[0].length;
+    }
+  } else {
+    match_index = this.__input_length;
+  }
+
+  val = this.__input.substring(this.__position, match_index);
+  this.__position = match_index;
+  return val;
+};
+
+InputScanner.prototype.readUntilAfter = function(pattern) {
+  return this.readUntil(pattern, true);
+};
+
+InputScanner.prototype.get_regexp = function(pattern, match_from) {
+  var result = null;
+  var flags = 'g';
+  if (match_from && regexp_has_sticky) {
+    flags = 'y';
+  }
+  // strings are converted to regexp
+  if (typeof pattern === "string" && pattern !== '') {
+    // result = new RegExp(pattern.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), flags);
+    result = new RegExp(pattern, flags);
+  } else if (pattern) {
+    result = new RegExp(pattern.source, flags);
+  }
+  return result;
+};
+
+InputScanner.prototype.get_literal_regexp = function(literal_string) {
+  return RegExp(literal_string.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'));
+};
+
+/* css beautifier legacy helpers */
+InputScanner.prototype.peekUntilAfter = function(pattern) {
+  var start = this.__position;
+  var val = this.readUntilAfter(pattern);
+  this.__position = start;
+  return val;
+};
+
+InputScanner.prototype.lookBack = function(testVal) {
+  var start = this.__position - 1;
+  return start >= testVal.length && this.__input.substring(start - testVal.length, start)
+    .toLowerCase() === testVal;
+};
+
+var InputScanner_1 = InputScanner;
+
+var inputscanner = {
+	InputScanner: InputScanner_1
+};
+
+/*jshint node:true */
+
+function TokenStream(parent_token) {
+  // private
+  this.__tokens = [];
+  this.__tokens_length = this.__tokens.length;
+  this.__position = 0;
+  this.__parent_token = parent_token;
+}
+
+TokenStream.prototype.restart = function() {
+  this.__position = 0;
+};
+
+TokenStream.prototype.isEmpty = function() {
+  return this.__tokens_length === 0;
+};
+
+TokenStream.prototype.hasNext = function() {
+  return this.__position < this.__tokens_length;
+};
+
+TokenStream.prototype.next = function() {
+  var val = null;
+  if (this.hasNext()) {
+    val = this.__tokens[this.__position];
+    this.__position += 1;
+  }
+  return val;
+};
+
+TokenStream.prototype.peek = function(index) {
+  var val = null;
+  index = index || 0;
+  index += this.__position;
+  if (index >= 0 && index < this.__tokens_length) {
+    val = this.__tokens[index];
+  }
+  return val;
+};
+
+TokenStream.prototype.add = function(token) {
+  if (this.__parent_token) {
+    token.parent = this.__parent_token;
+  }
+  this.__tokens.push(token);
+  this.__tokens_length += 1;
+};
+
+var TokenStream_1 = TokenStream;
+
+var tokenstream = {
+	TokenStream: TokenStream_1
+};
+
+/*jshint node:true */
+
+function Pattern(input_scanner, parent) {
+  this._input = input_scanner;
+  this._starting_pattern = null;
+  this._match_pattern = null;
+  this._until_pattern = null;
+  this._until_after = false;
+
+  if (parent) {
+    this._starting_pattern = this._input.get_regexp(parent._starting_pattern, true);
+    this._match_pattern = this._input.get_regexp(parent._match_pattern, true);
+    this._until_pattern = this._input.get_regexp(parent._until_pattern);
+    this._until_after = parent._until_after;
+  }
+}
+
+Pattern.prototype.read = function() {
+  var result = this._input.read(this._starting_pattern);
+  if (!this._starting_pattern || result) {
+    result += this._input.read(this._match_pattern, this._until_pattern, this._until_after);
+  }
+  return result;
+};
+
+Pattern.prototype.read_match = function() {
+  return this._input.match(this._match_pattern);
+};
+
+Pattern.prototype.until_after = function(pattern) {
+  var result = this._create();
+  result._until_after = true;
+  result._until_pattern = this._input.get_regexp(pattern);
+  result._update();
+  return result;
+};
+
+Pattern.prototype.until = function(pattern) {
+  var result = this._create();
+  result._until_after = false;
+  result._until_pattern = this._input.get_regexp(pattern);
+  result._update();
+  return result;
+};
+
+Pattern.prototype.starting_with = function(pattern) {
+  var result = this._create();
+  result._starting_pattern = this._input.get_regexp(pattern, true);
+  result._update();
+  return result;
+};
+
+Pattern.prototype.matching = function(pattern) {
+  var result = this._create();
+  result._match_pattern = this._input.get_regexp(pattern, true);
+  result._update();
+  return result;
+};
+
+Pattern.prototype._create = function() {
+  return new Pattern(this._input, this);
+};
+
+Pattern.prototype._update = function() {};
+
+var Pattern_1 = Pattern;
+
+var pattern = {
+	Pattern: Pattern_1
+};
+
+var Pattern$1 = pattern.Pattern;
+
+function WhitespacePattern(input_scanner, parent) {
+  Pattern$1.call(this, input_scanner, parent);
+  if (parent) {
+    this._line_regexp = this._input.get_regexp(parent._line_regexp);
+  } else {
+    this.__set_whitespace_patterns('', '');
+  }
+
+  this.newline_count = 0;
+  this.whitespace_before_token = '';
+}
+WhitespacePattern.prototype = new Pattern$1();
+
+WhitespacePattern.prototype.__set_whitespace_patterns = function(whitespace_chars, newline_chars) {
+  whitespace_chars += '\\t ';
+  newline_chars += '\\n\\r';
+
+  this._match_pattern = this._input.get_regexp(
+    '[' + whitespace_chars + newline_chars + ']+', true);
+  this._newline_regexp = this._input.get_regexp(
+    '\\r\\n|[' + newline_chars + ']');
+};
+
+WhitespacePattern.prototype.read = function() {
+  this.newline_count = 0;
+  this.whitespace_before_token = '';
+
+  var resulting_string = this._input.read(this._match_pattern);
+  if (resulting_string === ' ') {
+    this.whitespace_before_token = ' ';
+  } else if (resulting_string) {
+    var matches = this.__split(this._newline_regexp, resulting_string);
+    this.newline_count = matches.length - 1;
+    this.whitespace_before_token = matches[this.newline_count];
+  }
+
+  return resulting_string;
+};
+
+WhitespacePattern.prototype.matching = function(whitespace_chars, newline_chars) {
+  var result = this._create();
+  result.__set_whitespace_patterns(whitespace_chars, newline_chars);
+  result._update();
+  return result;
+};
+
+WhitespacePattern.prototype._create = function() {
+  return new WhitespacePattern(this._input, this);
+};
+
+WhitespacePattern.prototype.__split = function(regexp, input_string) {
+  regexp.lastIndex = 0;
+  var start_index = 0;
+  var result = [];
+  var next_match = regexp.exec(input_string);
+  while (next_match) {
+    result.push(input_string.substring(start_index, next_match.index));
+    start_index = next_match.index + next_match[0].length;
+    next_match = regexp.exec(input_string);
+  }
+
+  if (start_index < input_string.length) {
+    result.push(input_string.substring(start_index, input_string.length));
+  } else {
+    result.push('');
+  }
+
+  return result;
+};
+
+
+
+var WhitespacePattern_1 = WhitespacePattern;
+
+var whitespacepattern = {
+	WhitespacePattern: WhitespacePattern_1
+};
+
+var InputScanner$1 = inputscanner.InputScanner;
+var Token$1 = token.Token;
+var TokenStream$1 = tokenstream.TokenStream;
+var WhitespacePattern$1 = whitespacepattern.WhitespacePattern;
+
+var TOKEN = {
+  START: 'TK_START',
+  RAW: 'TK_RAW',
+  EOF: 'TK_EOF'
+};
+
+var Tokenizer = function(input_string, options) {
+  this._input = new InputScanner$1(input_string);
+  this._options = options || {};
+  this.__tokens = null;
+
+  this._patterns = {};
+  this._patterns.whitespace = new WhitespacePattern$1(this._input);
+};
+
+Tokenizer.prototype.tokenize = function() {
+  this._input.restart();
+  this.__tokens = new TokenStream$1();
+
+  this._reset();
+
+  var current;
+  var previous = new Token$1(TOKEN.START, '');
+  var open_token = null;
+  var open_stack = [];
+  var comments = new TokenStream$1();
+
+  while (previous.type !== TOKEN.EOF) {
+    current = this._get_next_token(previous, open_token);
+    while (this._is_comment(current)) {
+      comments.add(current);
+      current = this._get_next_token(previous, open_token);
+    }
+
+    if (!comments.isEmpty()) {
+      current.comments_before = comments;
+      comments = new TokenStream$1();
+    }
+
+    current.parent = open_token;
+
+    if (this._is_opening(current)) {
+      open_stack.push(open_token);
+      open_token = current;
+    } else if (open_token && this._is_closing(current, open_token)) {
+      current.opened = open_token;
+      open_token.closed = current;
+      open_token = open_stack.pop();
+      current.parent = open_token;
+    }
+
+    current.previous = previous;
+    previous.next = current;
+
+    this.__tokens.add(current);
+    previous = current;
+  }
+
+  return this.__tokens;
+};
+
+
+Tokenizer.prototype._is_first_token = function() {
+  return this.__tokens.isEmpty();
+};
+
+Tokenizer.prototype._reset = function() {};
+
+Tokenizer.prototype._get_next_token = function(previous_token, open_token) { // jshint unused:false
+  this._readWhitespace();
+  var resulting_string = this._input.read(/.+/g);
+  if (resulting_string) {
+    return this._create_token(TOKEN.RAW, resulting_string);
+  } else {
+    return this._create_token(TOKEN.EOF, '');
+  }
+};
+
+Tokenizer.prototype._is_comment = function(current_token) { // jshint unused:false
+  return false;
+};
+
+Tokenizer.prototype._is_opening = function(current_token) { // jshint unused:false
+  return false;
+};
+
+Tokenizer.prototype._is_closing = function(current_token, open_token) { // jshint unused:false
+  return false;
+};
+
+Tokenizer.prototype._create_token = function(type, text) {
+  var token = new Token$1(type, text,
+    this._patterns.whitespace.newline_count,
+    this._patterns.whitespace.whitespace_before_token);
+  return token;
+};
+
+Tokenizer.prototype._readWhitespace = function() {
+  return this._patterns.whitespace.read();
+};
+
+
+
+var Tokenizer_1 = Tokenizer;
+var TOKEN_1 = TOKEN;
+
+var tokenizer = {
+	Tokenizer: Tokenizer_1,
+	TOKEN: TOKEN_1
+};
+
+/*jshint node:true */
+
+function Directives(start_block_pattern, end_block_pattern) {
+  start_block_pattern = typeof start_block_pattern === 'string' ? start_block_pattern : start_block_pattern.source;
+  end_block_pattern = typeof end_block_pattern === 'string' ? end_block_pattern : end_block_pattern.source;
+  this.__directives_block_pattern = new RegExp(start_block_pattern + / beautify( \w+[:]\w+)+ /.source + end_block_pattern, 'g');
+  this.__directive_pattern = / (\w+)[:](\w+)/g;
+
+  this.__directives_end_ignore_pattern = new RegExp(start_block_pattern + /\sbeautify\signore:end\s/.source + end_block_pattern, 'g');
+}
+
+Directives.prototype.get_directives = function(text) {
+  if (!text.match(this.__directives_block_pattern)) {
+    return null;
+  }
+
+  var directives = {};
+  this.__directive_pattern.lastIndex = 0;
+  var directive_match = this.__directive_pattern.exec(text);
+
+  while (directive_match) {
+    directives[directive_match[1]] = directive_match[2];
+    directive_match = this.__directive_pattern.exec(text);
+  }
+
+  return directives;
+};
+
+Directives.prototype.readIgnored = function(input) {
+  return input.readUntilAfter(this.__directives_end_ignore_pattern);
+};
+
+
+var Directives_1 = Directives;
+
+var directives = {
+	Directives: Directives_1
+};
+
+var Pattern$2 = pattern.Pattern;
+
+
+var template_names = {
+  django: false,
+  erb: false,
+  handlebars: false,
+  php: false
+};
+
+// This lets templates appear anywhere we would do a readUntil
+// The cost is higher but it is pay to play.
+function TemplatablePattern(input_scanner, parent) {
+  Pattern$2.call(this, input_scanner, parent);
+  this.__template_pattern = null;
+  this._disabled = Object.assign({}, template_names);
+  this._excluded = Object.assign({}, template_names);
+
+  if (parent) {
+    this.__template_pattern = this._input.get_regexp(parent.__template_pattern);
+    this._excluded = Object.assign(this._excluded, parent._excluded);
+    this._disabled = Object.assign(this._disabled, parent._disabled);
+  }
+  var pattern = new Pattern$2(input_scanner);
+  this.__patterns = {
+    handlebars_comment: pattern.starting_with(/{{!--/).until_after(/--}}/),
+    handlebars: pattern.starting_with(/{{/).until_after(/}}/),
+    php: pattern.starting_with(/<\?(?:[=]|php)/).until_after(/\?>/),
+    erb: pattern.starting_with(/<%[^%]/).until_after(/[^%]%>/),
+    // django coflicts with handlebars a bit.
+    django: pattern.starting_with(/{%/).until_after(/%}/),
+    django_value: pattern.starting_with(/{{/).until_after(/}}/),
+    django_comment: pattern.starting_with(/{#/).until_after(/#}/)
+  };
+}
+TemplatablePattern.prototype = new Pattern$2();
+
+TemplatablePattern.prototype._create = function() {
+  return new TemplatablePattern(this._input, this);
+};
+
+TemplatablePattern.prototype._update = function() {
+  this.__set_templated_pattern();
+};
+
+TemplatablePattern.prototype.disable = function(language) {
+  var result = this._create();
+  result._disabled[language] = true;
+  result._update();
+  return result;
+};
+
+TemplatablePattern.prototype.read_options = function(options) {
+  var result = this._create();
+  for (var language in template_names) {
+    result._disabled[language] = options.templating.indexOf(language) === -1;
+  }
+  result._update();
+  return result;
+};
+
+TemplatablePattern.prototype.exclude = function(language) {
+  var result = this._create();
+  result._excluded[language] = true;
+  result._update();
+  return result;
+};
+
+TemplatablePattern.prototype.read = function() {
+  var result = '';
+  if (this._match_pattern) {
+    result = this._input.read(this._starting_pattern);
+  } else {
+    result = this._input.read(this._starting_pattern, this.__template_pattern);
+  }
+  var next = this._read_template();
+  while (next) {
+    if (this._match_pattern) {
+      next += this._input.read(this._match_pattern);
+    } else {
+      next += this._input.readUntil(this.__template_pattern);
+    }
+    result += next;
+    next = this._read_template();
+  }
+
+  if (this._until_after) {
+    result += this._input.readUntilAfter(this._until_pattern);
+  }
+  return result;
+};
+
+TemplatablePattern.prototype.__set_templated_pattern = function() {
+  var items = [];
+
+  if (!this._disabled.php) {
+    items.push(this.__patterns.php._starting_pattern.source);
+  }
+  if (!this._disabled.handlebars) {
+    items.push(this.__patterns.handlebars._starting_pattern.source);
+  }
+  if (!this._disabled.erb) {
+    items.push(this.__patterns.erb._starting_pattern.source);
+  }
+  if (!this._disabled.django) {
+    items.push(this.__patterns.django._starting_pattern.source);
+    items.push(this.__patterns.django_value._starting_pattern.source);
+    items.push(this.__patterns.django_comment._starting_pattern.source);
+  }
+
+  if (this._until_pattern) {
+    items.push(this._until_pattern.source);
+  }
+  this.__template_pattern = this._input.get_regexp('(?:' + items.join('|') + ')');
+};
+
+TemplatablePattern.prototype._read_template = function() {
+  var resulting_string = '';
+  var c = this._input.peek();
+  if (c === '<') {
+    var peek1 = this._input.peek(1);
+    //if we're in a comment, do something special
+    // We treat all comments as literals, even more than preformatted tags
+    // we just look for the appropriate close tag
+    if (!this._disabled.php && !this._excluded.php && peek1 === '?') {
+      resulting_string = resulting_string ||
+        this.__patterns.php.read();
+    }
+    if (!this._disabled.erb && !this._excluded.erb && peek1 === '%') {
+      resulting_string = resulting_string ||
+        this.__patterns.erb.read();
+    }
+  } else if (c === '{') {
+    if (!this._disabled.handlebars && !this._excluded.handlebars) {
+      resulting_string = resulting_string ||
+        this.__patterns.handlebars_comment.read();
+      resulting_string = resulting_string ||
+        this.__patterns.handlebars.read();
+    }
+    if (!this._disabled.django) {
+      // django coflicts with handlebars a bit.
+      if (!this._excluded.django && !this._excluded.handlebars) {
+        resulting_string = resulting_string ||
+          this.__patterns.django_value.read();
+      }
+      if (!this._excluded.django) {
+        resulting_string = resulting_string ||
+          this.__patterns.django_comment.read();
+        resulting_string = resulting_string ||
+          this.__patterns.django.read();
+      }
+    }
+  }
+  return resulting_string;
+};
+
+
+var TemplatablePattern_1 = TemplatablePattern;
+
+var templatablepattern = {
+	TemplatablePattern: TemplatablePattern_1
+};
+
+var InputScanner$2 = inputscanner.InputScanner;
+var BaseTokenizer = tokenizer.Tokenizer;
+var BASETOKEN = tokenizer.TOKEN;
+var Directives$1 = directives.Directives;
+
+var Pattern$3 = pattern.Pattern;
+var TemplatablePattern$1 = templatablepattern.TemplatablePattern;
+
+
+function in_array(what, arr) {
+  return arr.indexOf(what) !== -1;
+}
+
+
+var TOKEN$1 = {
+  START_EXPR: 'TK_START_EXPR',
+  END_EXPR: 'TK_END_EXPR',
+  START_BLOCK: 'TK_START_BLOCK',
+  END_BLOCK: 'TK_END_BLOCK',
+  WORD: 'TK_WORD',
+  RESERVED: 'TK_RESERVED',
+  SEMICOLON: 'TK_SEMICOLON',
+  STRING: 'TK_STRING',
+  EQUALS: 'TK_EQUALS',
+  OPERATOR: 'TK_OPERATOR',
+  COMMA: 'TK_COMMA',
+  BLOCK_COMMENT: 'TK_BLOCK_COMMENT',
+  COMMENT: 'TK_COMMENT',
+  DOT: 'TK_DOT',
+  UNKNOWN: 'TK_UNKNOWN',
+  START: BASETOKEN.START,
+  RAW: BASETOKEN.RAW,
+  EOF: BASETOKEN.EOF
+};
+
+
+var directives_core = new Directives$1(/\/\*/, /\*\//);
+
+var number_pattern = /0[xX][0123456789abcdefABCDEF]*|0[oO][01234567]*|0[bB][01]*|\d+n|(?:\.\d+|\d+\.?\d*)(?:[eE][+-]?\d+)?/;
+
+var digit = /[0-9]/;
+
+// Dot "." must be distinguished from "..." and decimal
+var dot_pattern = /[^\d\.]/;
+
+var positionable_operators = (
+  ">>> === !== " +
+  "<< && >= ** != == <= >> || " +
+  "< / - + > : & % ? ^ | *").split(' ');
+
+// IMPORTANT: this must be sorted longest to shortest or tokenizing many not work.
+// Also, you must update possitionable operators separately from punct
+var punct =
+  ">>>= " +
+  "... >>= <<= === >>> !== **= " +
+  "=> ^= :: /= << <= == && -= >= >> != -- += ** || ++ %= &= *= |= " +
+  "= ! ? > < : / ^ - + * & % ~ |";
+
+punct = punct.replace(/[-[\]{}()*+?.,\\^$|#]/g, "\\$&");
+punct = punct.replace(/ /g, '|');
+
+var punct_pattern = new RegExp(punct);
+
+// words which should always start on new line.
+var line_starters = 'continue,try,throw,return,var,let,const,if,switch,case,default,for,while,break,function,import,export'.split(',');
+var reserved_words = line_starters.concat(['do', 'in', 'of', 'else', 'get', 'set', 'new', 'catch', 'finally', 'typeof', 'yield', 'async', 'await', 'from', 'as']);
+var reserved_word_pattern = new RegExp('^(?:' + reserved_words.join('|') + ')$');
+
+// var template_pattern = /(?:(?:<\?php|<\?=)[\s\S]*?\?>)|(?:<%[\s\S]*?%>)/g;
+
+var in_html_comment;
+
+var Tokenizer$1 = function(input_string, options) {
+  BaseTokenizer.call(this, input_string, options);
+
+  this._patterns.whitespace = this._patterns.whitespace.matching(
+    /\u00A0\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff/.source,
+    /\u2028\u2029/.source);
+
+  var pattern_reader = new Pattern$3(this._input);
+  var templatable = new TemplatablePattern$1(this._input)
+    .read_options(this._options);
+
+  this.__patterns = {
+    template: templatable,
+    identifier: templatable.starting_with(acorn.identifier).matching(acorn.identifierMatch),
+    number: pattern_reader.matching(number_pattern),
+    punct: pattern_reader.matching(punct_pattern),
+    // comment ends just before nearest linefeed or end of file
+    comment: pattern_reader.starting_with(/\/\//).until(/[\n\r\u2028\u2029]/),
+    //  /* ... */ comment ends with nearest */ or end of file
+    block_comment: pattern_reader.starting_with(/\/\*/).until_after(/\*\//),
+    html_comment_start: pattern_reader.matching(/<!--/),
+    html_comment_end: pattern_reader.matching(/-->/),
+    include: pattern_reader.starting_with(/#include/).until_after(acorn.lineBreak),
+    shebang: pattern_reader.starting_with(/#!/).until_after(acorn.lineBreak),
+    xml: pattern_reader.matching(/[\s\S]*?<(\/?)([-a-zA-Z:0-9_.]+|{[\s\S]+?}|!\[CDATA\[[\s\S]*?\]\])(\s+{[\s\S]+?}|\s+[-a-zA-Z:0-9_.]+|\s+[-a-zA-Z:0-9_.]+\s*=\s*('[^']*'|"[^"]*"|{[\s\S]+?}))*\s*(\/?)\s*>/),
+    single_quote: templatable.until(/['\\\n\r\u2028\u2029]/),
+    double_quote: templatable.until(/["\\\n\r\u2028\u2029]/),
+    template_text: templatable.until(/[`\\$]/),
+    template_expression: templatable.until(/[`}\\]/)
+  };
+
+};
+Tokenizer$1.prototype = new BaseTokenizer();
+
+Tokenizer$1.prototype._is_comment = function(current_token) {
+  return current_token.type === TOKEN$1.COMMENT || current_token.type === TOKEN$1.BLOCK_COMMENT || current_token.type === TOKEN$1.UNKNOWN;
+};
+
+Tokenizer$1.prototype._is_opening = function(current_token) {
+  return current_token.type === TOKEN$1.START_BLOCK || current_token.type === TOKEN$1.START_EXPR;
+};
+
+Tokenizer$1.prototype._is_closing = function(current_token, open_token) {
+  return (current_token.type === TOKEN$1.END_BLOCK || current_token.type === TOKEN$1.END_EXPR) &&
+    (open_token && (
+      (current_token.text === ']' && open_token.text === '[') ||
+      (current_token.text === ')' && open_token.text === '(') ||
+      (current_token.text === '}' && open_token.text === '{')));
+};
+
+Tokenizer$1.prototype._reset = function() {
+  in_html_comment = false;
+};
+
+Tokenizer$1.prototype._get_next_token = function(previous_token, open_token) { // jshint unused:false
+  var token = null;
+  this._readWhitespace();
+  var c = this._input.peek();
+
+  if (c === null) {
+    return this._create_token(TOKEN$1.EOF, '');
+  }
+
+  token = token || this._read_string(c);
+  token = token || this._read_word(previous_token);
+  token = token || this._read_singles(c);
+  token = token || this._read_comment(c);
+  token = token || this._read_regexp(c, previous_token);
+  token = token || this._read_xml(c, previous_token);
+  token = token || this._read_non_javascript(c);
+  token = token || this._read_punctuation();
+  token = token || this._create_token(TOKEN$1.UNKNOWN, this._input.next());
+
+  return token;
+};
+
+Tokenizer$1.prototype._read_word = function(previous_token) {
+  var resulting_string;
+  resulting_string = this.__patterns.identifier.read();
+  if (resulting_string !== '') {
+    resulting_string = resulting_string.replace(acorn.allLineBreaks, '\n');
+    if (!(previous_token.type === TOKEN$1.DOT ||
+        (previous_token.type === TOKEN$1.RESERVED && (previous_token.text === 'set' || previous_token.text === 'get'))) &&
+      reserved_word_pattern.test(resulting_string)) {
+      if (resulting_string === 'in' || resulting_string === 'of') { // hack for 'in' and 'of' operators
+        return this._create_token(TOKEN$1.OPERATOR, resulting_string);
+      }
+      return this._create_token(TOKEN$1.RESERVED, resulting_string);
+    }
+    return this._create_token(TOKEN$1.WORD, resulting_string);
+  }
+
+  resulting_string = this.__patterns.number.read();
+  if (resulting_string !== '') {
+    return this._create_token(TOKEN$1.WORD, resulting_string);
+  }
+};
+
+Tokenizer$1.prototype._read_singles = function(c) {
+  var token = null;
+  if (c === '(' || c === '[') {
+    token = this._create_token(TOKEN$1.START_EXPR, c);
+  } else if (c === ')' || c === ']') {
+    token = this._create_token(TOKEN$1.END_EXPR, c);
+  } else if (c === '{') {
+    token = this._create_token(TOKEN$1.START_BLOCK, c);
+  } else if (c === '}') {
+    token = this._create_token(TOKEN$1.END_BLOCK, c);
+  } else if (c === ';') {
+    token = this._create_token(TOKEN$1.SEMICOLON, c);
+  } else if (c === '.' && dot_pattern.test(this._input.peek(1))) {
+    token = this._create_token(TOKEN$1.DOT, c);
+  } else if (c === ',') {
+    token = this._create_token(TOKEN$1.COMMA, c);
+  }
+
+  if (token) {
+    this._input.next();
+  }
+  return token;
+};
+
+Tokenizer$1.prototype._read_punctuation = function() {
+  var resulting_string = this.__patterns.punct.read();
+
+  if (resulting_string !== '') {
+    if (resulting_string === '=') {
+      return this._create_token(TOKEN$1.EQUALS, resulting_string);
+    } else {
+      return this._create_token(TOKEN$1.OPERATOR, resulting_string);
+    }
+  }
+};
+
+Tokenizer$1.prototype._read_non_javascript = function(c) {
+  var resulting_string = '';
+
+  if (c === '#') {
+    if (this._is_first_token()) {
+      resulting_string = this.__patterns.shebang.read();
+
+      if (resulting_string) {
+        return this._create_token(TOKEN$1.UNKNOWN, resulting_string.trim() + '\n');
+      }
+    }
+
+    // handles extendscript #includes
+    resulting_string = this.__patterns.include.read();
+
+    if (resulting_string) {
+      return this._create_token(TOKEN$1.UNKNOWN, resulting_string.trim() + '\n');
+    }
+
+    c = this._input.next();
+
+    // Spidermonkey-specific sharp variables for circular references. Considered obsolete.
+    var sharp = '#';
+    if (this._input.hasNext() && this._input.testChar(digit)) {
+      do {
+        c = this._input.next();
+        sharp += c;
+      } while (this._input.hasNext() && c !== '#' && c !== '=');
+      if (c === '#') ; else if (this._input.peek() === '[' && this._input.peek(1) === ']') {
+        sharp += '[]';
+        this._input.next();
+        this._input.next();
+      } else if (this._input.peek() === '{' && this._input.peek(1) === '}') {
+        sharp += '{}';
+        this._input.next();
+        this._input.next();
+      }
+      return this._create_token(TOKEN$1.WORD, sharp);
+    }
+
+    this._input.back();
+
+  } else if (c === '<' && this._is_first_token()) {
+    resulting_string = this.__patterns.html_comment_start.read();
+    if (resulting_string) {
+      while (this._input.hasNext() && !this._input.testChar(acorn.newline)) {
+        resulting_string += this._input.next();
+      }
+      in_html_comment = true;
+      return this._create_token(TOKEN$1.COMMENT, resulting_string);
+    }
+  } else if (in_html_comment && c === '-') {
+    resulting_string = this.__patterns.html_comment_end.read();
+    if (resulting_string) {
+      in_html_comment = false;
+      return this._create_token(TOKEN$1.COMMENT, resulting_string);
+    }
+  }
+
+  return null;
+};
+
+Tokenizer$1.prototype._read_comment = function(c) {
+  var token = null;
+  if (c === '/') {
+    var comment = '';
+    if (this._input.peek(1) === '*') {
+      // peek for comment /* ... */
+      comment = this.__patterns.block_comment.read();
+      var directives = directives_core.get_directives(comment);
+      if (directives && directives.ignore === 'start') {
+        comment += directives_core.readIgnored(this._input);
+      }
+      comment = comment.replace(acorn.allLineBreaks, '\n');
+      token = this._create_token(TOKEN$1.BLOCK_COMMENT, comment);
+      token.directives = directives;
+    } else if (this._input.peek(1) === '/') {
+      // peek for comment // ...
+      comment = this.__patterns.comment.read();
+      token = this._create_token(TOKEN$1.COMMENT, comment);
+    }
+  }
+  return token;
+};
+
+Tokenizer$1.prototype._read_string = function(c) {
+  if (c === '`' || c === "'" || c === '"') {
+    var resulting_string = this._input.next();
+    this.has_char_escapes = false;
+
+    if (c === '`') {
+      resulting_string += this._read_string_recursive('`', true, '${');
+    } else {
+      resulting_string += this._read_string_recursive(c);
+    }
+
+    if (this.has_char_escapes && this._options.unescape_strings) {
+      resulting_string = unescape_string(resulting_string);
+    }
+
+    if (this._input.peek() === c) {
+      resulting_string += this._input.next();
+    }
+
+    resulting_string = resulting_string.replace(acorn.allLineBreaks, '\n');
+
+    return this._create_token(TOKEN$1.STRING, resulting_string);
+  }
+
+  return null;
+};
+
+Tokenizer$1.prototype._allow_regexp_or_xml = function(previous_token) {
+  // regex and xml can only appear in specific locations during parsing
+  return (previous_token.type === TOKEN$1.RESERVED && in_array(previous_token.text, ['return', 'case', 'throw', 'else', 'do', 'typeof', 'yield'])) ||
+    (previous_token.type === TOKEN$1.END_EXPR && previous_token.text === ')' &&
+      previous_token.opened.previous.type === TOKEN$1.RESERVED && in_array(previous_token.opened.previous.text, ['if', 'while', 'for'])) ||
+    (in_array(previous_token.type, [TOKEN$1.COMMENT, TOKEN$1.START_EXPR, TOKEN$1.START_BLOCK, TOKEN$1.START,
+      TOKEN$1.END_BLOCK, TOKEN$1.OPERATOR, TOKEN$1.EQUALS, TOKEN$1.EOF, TOKEN$1.SEMICOLON, TOKEN$1.COMMA
+    ]));
+};
+
+Tokenizer$1.prototype._read_regexp = function(c, previous_token) {
+
+  if (c === '/' && this._allow_regexp_or_xml(previous_token)) {
+    // handle regexp
+    //
+    var resulting_string = this._input.next();
+    var esc = false;
+
+    var in_char_class = false;
+    while (this._input.hasNext() &&
+      ((esc || in_char_class || this._input.peek() !== c) &&
+        !this._input.testChar(acorn.newline))) {
+      resulting_string += this._input.peek();
+      if (!esc) {
+        esc = this._input.peek() === '\\';
+        if (this._input.peek() === '[') {
+          in_char_class = true;
+        } else if (this._input.peek() === ']') {
+          in_char_class = false;
+        }
+      } else {
+        esc = false;
+      }
+      this._input.next();
+    }
+
+    if (this._input.peek() === c) {
+      resulting_string += this._input.next();
+
+      // regexps may have modifiers /regexp/MOD , so fetch those, too
+      // Only [gim] are valid, but if the user puts in garbage, do what we can to take it.
+      resulting_string += this._input.read(acorn.identifier);
+    }
+    return this._create_token(TOKEN$1.STRING, resulting_string);
+  }
+  return null;
+};
+
+Tokenizer$1.prototype._read_xml = function(c, previous_token) {
+
+  if (this._options.e4x && c === "<" && this._allow_regexp_or_xml(previous_token)) {
+    var xmlStr = '';
+    var match = this.__patterns.xml.read_match();
+    // handle e4x xml literals
+    //
+    if (match) {
+      // Trim root tag to attempt to
+      var rootTag = match[2].replace(/^{\s+/, '{').replace(/\s+}$/, '}');
+      var isCurlyRoot = rootTag.indexOf('{') === 0;
+      var depth = 0;
+      while (match) {
+        var isEndTag = !!match[1];
+        var tagName = match[2];
+        var isSingletonTag = (!!match[match.length - 1]) || (tagName.slice(0, 8) === "![CDATA[");
+        if (!isSingletonTag &&
+          (tagName === rootTag || (isCurlyRoot && tagName.replace(/^{\s+/, '{').replace(/\s+}$/, '}')))) {
+          if (isEndTag) {
+            --depth;
+          } else {
+            ++depth;
+          }
+        }
+        xmlStr += match[0];
+        if (depth <= 0) {
+          break;
+        }
+        match = this.__patterns.xml.read_match();
+      }
+      // if we didn't close correctly, keep unformatted.
+      if (!match) {
+        xmlStr += this._input.match(/[\s\S]*/g)[0];
+      }
+      xmlStr = xmlStr.replace(acorn.allLineBreaks, '\n');
+      return this._create_token(TOKEN$1.STRING, xmlStr);
+    }
+  }
+
+  return null;
+};
+
+function unescape_string(s) {
+  // You think that a regex would work for this
+  // return s.replace(/\\x([0-9a-f]{2})/gi, function(match, val) {
+  //         return String.fromCharCode(parseInt(val, 16));
+  //     })
+  // However, dealing with '\xff', '\\xff', '\\\xff' makes this more fun.
+  var out = '',
+    escaped = 0;
+
+  var input_scan = new InputScanner$2(s);
+  var matched = null;
+
+  while (input_scan.hasNext()) {
+    // Keep any whitespace, non-slash characters
+    // also keep slash pairs.
+    matched = input_scan.match(/([\s]|[^\\]|\\\\)+/g);
+
+    if (matched) {
+      out += matched[0];
+    }
+
+    if (input_scan.peek() === '\\') {
+      input_scan.next();
+      if (input_scan.peek() === 'x') {
+        matched = input_scan.match(/x([0-9A-Fa-f]{2})/g);
+      } else if (input_scan.peek() === 'u') {
+        matched = input_scan.match(/u([0-9A-Fa-f]{4})/g);
+      } else {
+        out += '\\';
+        if (input_scan.hasNext()) {
+          out += input_scan.next();
+        }
+        continue;
+      }
+
+      // If there's some error decoding, return the original string
+      if (!matched) {
+        return s;
+      }
+
+      escaped = parseInt(matched[1], 16);
+
+      if (escaped > 0x7e && escaped <= 0xff && matched[0].indexOf('x') === 0) {
+        // we bail out on \x7f..\xff,
+        // leaving whole string escaped,
+        // as it's probably completely binary
+        return s;
+      } else if (escaped >= 0x00 && escaped < 0x20) {
+        // leave 0x00...0x1f escaped
+        out += '\\' + matched[0];
+        continue;
+      } else if (escaped === 0x22 || escaped === 0x27 || escaped === 0x5c) {
+        // single-quote, apostrophe, backslash - escape these
+        out += '\\' + String.fromCharCode(escaped);
+      } else {
+        out += String.fromCharCode(escaped);
+      }
+    }
+  }
+
+  return out;
+}
+
+// handle string
+//
+Tokenizer$1.prototype._read_string_recursive = function(delimiter, allow_unescaped_newlines, start_sub) {
+  var current_char;
+  var pattern;
+  if (delimiter === '\'') {
+    pattern = this.__patterns.single_quote;
+  } else if (delimiter === '"') {
+    pattern = this.__patterns.double_quote;
+  } else if (delimiter === '`') {
+    pattern = this.__patterns.template_text;
+  } else if (delimiter === '}') {
+    pattern = this.__patterns.template_expression;
+  }
+
+  var resulting_string = pattern.read();
+  var next = '';
+  while (this._input.hasNext()) {
+    next = this._input.next();
+    if (next === delimiter ||
+      (!allow_unescaped_newlines && acorn.newline.test(next))) {
+      this._input.back();
+      break;
+    } else if (next === '\\' && this._input.hasNext()) {
+      current_char = this._input.peek();
+
+      if (current_char === 'x' || current_char === 'u') {
+        this.has_char_escapes = true;
+      } else if (current_char === '\r' && this._input.peek(1) === '\n') {
+        this._input.next();
+      }
+      next += this._input.next();
+    } else if (start_sub) {
+      if (start_sub === '${' && next === '$' && this._input.peek() === '{') {
+        next += this._input.next();
+      }
+
+      if (start_sub === next) {
+        if (delimiter === '`') {
+          next += this._read_string_recursive('}', allow_unescaped_newlines, '`');
+        } else {
+          next += this._read_string_recursive('`', allow_unescaped_newlines, '${');
+        }
+        if (this._input.hasNext()) {
+          next += this._input.next();
+        }
+      }
+    }
+    next += pattern.read();
+    resulting_string += next;
+  }
+
+  return resulting_string;
+};
+
+var Tokenizer_1$1 = Tokenizer$1;
+var TOKEN_1$1 = TOKEN$1;
+var positionable_operators_1 = positionable_operators.slice();
+var line_starters_1 = line_starters.slice();
+
+var tokenizer$1 = {
+	Tokenizer: Tokenizer_1$1,
+	TOKEN: TOKEN_1$1,
+	positionable_operators: positionable_operators_1,
+	line_starters: line_starters_1
+};
+
+var Output$1 = output.Output;
+var Token$2 = token.Token;
+
+var Options$2 = options$1.Options;
+var Tokenizer$2 = tokenizer$1.Tokenizer;
+var line_starters$1 = tokenizer$1.line_starters;
+var positionable_operators$1 = tokenizer$1.positionable_operators;
+var TOKEN$2 = tokenizer$1.TOKEN;
+
+
+function in_array$1(what, arr) {
+  return arr.indexOf(what) !== -1;
+}
+
+function ltrim(s) {
+  return s.replace(/^\s+/g, '');
+}
+
+function generateMapFromStrings(list) {
+  var result = {};
+  for (var x = 0; x < list.length; x++) {
+    // make the mapped names underscored instead of dash
+    result[list[x].replace(/-/g, '_')] = list[x];
+  }
+  return result;
+}
+
+function reserved_word(token, word) {
+  return token && token.type === TOKEN$2.RESERVED && token.text === word;
+}
+
+function reserved_array(token, words) {
+  return token && token.type === TOKEN$2.RESERVED && in_array$1(token.text, words);
+}
+// Unsure of what they mean, but they work. Worth cleaning up in future.
+var special_words = ['case', 'return', 'do', 'if', 'throw', 'else', 'await', 'break', 'continue', 'async'];
+
+var validPositionValues$1 = ['before-newline', 'after-newline', 'preserve-newline'];
+
+// Generate map from array
+var OPERATOR_POSITION = generateMapFromStrings(validPositionValues$1);
+
+var OPERATOR_POSITION_BEFORE_OR_PRESERVE = [OPERATOR_POSITION.before_newline, OPERATOR_POSITION.preserve_newline];
+
+var MODE = {
+  BlockStatement: 'BlockStatement', // 'BLOCK'
+  Statement: 'Statement', // 'STATEMENT'
+  ObjectLiteral: 'ObjectLiteral', // 'OBJECT',
+  ArrayLiteral: 'ArrayLiteral', //'[EXPRESSION]',
+  ForInitializer: 'ForInitializer', //'(FOR-EXPRESSION)',
+  Conditional: 'Conditional', //'(COND-EXPRESSION)',
+  Expression: 'Expression' //'(EXPRESSION)'
+};
+
+function remove_redundant_indentation(output, frame) {
+  // This implementation is effective but has some issues:
+  //     - can cause line wrap to happen too soon due to indent removal
+  //           after wrap points are calculated
+  // These issues are minor compared to ugly indentation.
+
+  if (frame.multiline_frame ||
+    frame.mode === MODE.ForInitializer ||
+    frame.mode === MODE.Conditional) {
+    return;
+  }
+
+  // remove one indent from each line inside this section
+  output.remove_indent(frame.start_line_index);
+}
+
+// we could use just string.split, but
+// IE doesn't like returning empty strings
+function split_linebreaks(s) {
+  //return s.split(/\x0d\x0a|\x0a/);
+
+  s = s.replace(acorn.allLineBreaks, '\n');
+  var out = [],
+    idx = s.indexOf("\n");
+  while (idx !== -1) {
+    out.push(s.substring(0, idx));
+    s = s.substring(idx + 1);
+    idx = s.indexOf("\n");
+  }
+  if (s.length) {
+    out.push(s);
+  }
+  return out;
+}
+
+function is_array(mode) {
+  return mode === MODE.ArrayLiteral;
+}
+
+function is_expression(mode) {
+  return in_array$1(mode, [MODE.Expression, MODE.ForInitializer, MODE.Conditional]);
+}
+
+function all_lines_start_with(lines, c) {
+  for (var i = 0; i < lines.length; i++) {
+    var line = lines[i].trim();
+    if (line.charAt(0) !== c) {
+      return false;
+    }
+  }
+  return true;
+}
+
+function each_line_matches_indent(lines, indent) {
+  var i = 0,
+    len = lines.length,
+    line;
+  for (; i < len; i++) {
+    line = lines[i];
+    // allow empty lines to pass through
+    if (line && line.indexOf(indent) !== 0) {
+      return false;
+    }
+  }
+  return true;
+}
+
+
+function Beautifier(source_text, options) {
+  options = options || {};
+  this._source_text = source_text || '';
+
+  this._output = null;
+  this._tokens = null;
+  this._last_last_text = null;
+  this._flags = null;
+  this._previous_flags = null;
+
+  this._flag_store = null;
+  this._options = new Options$2(options);
+}
+
+Beautifier.prototype.create_flags = function(flags_base, mode) {
+  var next_indent_level = 0;
+  if (flags_base) {
+    next_indent_level = flags_base.indentation_level;
+    if (!this._output.just_added_newline() &&
+      flags_base.line_indent_level > next_indent_level) {
+      next_indent_level = flags_base.line_indent_level;
+    }
+  }
+
+  var next_flags = {
+    mode: mode,
+    parent: flags_base,
+    last_token: flags_base ? flags_base.last_token : new Token$2(TOKEN$2.START_BLOCK, ''), // last token text
+    last_word: flags_base ? flags_base.last_word : '', // last TOKEN.WORD passed
+    declaration_statement: false,
+    declaration_assignment: false,
+    multiline_frame: false,
+    inline_frame: false,
+    if_block: false,
+    else_block: false,
+    do_block: false,
+    do_while: false,
+    import_block: false,
+    in_case_statement: false, // switch(..){ INSIDE HERE }
+    in_case: false, // we're on the exact line with "case 0:"
+    case_body: false, // the indented case-action block
+    indentation_level: next_indent_level,
+    alignment: 0,
+    line_indent_level: flags_base ? flags_base.line_indent_level : next_indent_level,
+    start_line_index: this._output.get_line_number(),
+    ternary_depth: 0
+  };
+  return next_flags;
+};
+
+Beautifier.prototype._reset = function(source_text) {
+  var baseIndentString = source_text.match(/^[\t ]*/)[0];
+
+  this._last_last_text = ''; // pre-last token text
+  this._output = new Output$1(this._options, baseIndentString);
+
+  // If testing the ignore directive, start with output disable set to true
+  this._output.raw = this._options.test_output_raw;
+
+
+  // Stack of parsing/formatting states, including MODE.
+  // We tokenize, parse, and output in an almost purely a forward-only stream of token input
+  // and formatted output.  This makes the beautifier less accurate than full parsers
+  // but also far more tolerant of syntax errors.
+  //
+  // For example, the default mode is MODE.BlockStatement. If we see a '{' we push a new frame of type
+  // MODE.BlockStatement on the the stack, even though it could be object literal.  If we later
+  // encounter a ":", we'll switch to to MODE.ObjectLiteral.  If we then see a ";",
+  // most full parsers would die, but the beautifier gracefully falls back to
+  // MODE.BlockStatement and continues on.
+  this._flag_store = [];
+  this.set_mode(MODE.BlockStatement);
+  var tokenizer = new Tokenizer$2(source_text, this._options);
+  this._tokens = tokenizer.tokenize();
+  return source_text;
+};
+
+Beautifier.prototype.beautify = function() {
+  // if disabled, return the input unchanged.
+  if (this._options.disabled) {
+    return this._source_text;
+  }
+
+  var sweet_code;
+  var source_text = this._reset(this._source_text);
+
+  var eol = this._options.eol;
+  if (this._options.eol === 'auto') {
+    eol = '\n';
+    if (source_text && acorn.lineBreak.test(source_text || '')) {
+      eol = source_text.match(acorn.lineBreak)[0];
+    }
+  }
+
+  var current_token = this._tokens.next();
+  while (current_token) {
+    this.handle_token(current_token);
+
+    this._last_last_text = this._flags.last_token.text;
+    this._flags.last_token = current_token;
+
+    current_token = this._tokens.next();
+  }
+
+  sweet_code = this._output.get_code(eol);
+
+  return sweet_code;
+};
+
+Beautifier.prototype.handle_token = function(current_token, preserve_statement_flags) {
+  if (current_token.type === TOKEN$2.START_EXPR) {
+    this.handle_start_expr(current_token);
+  } else if (current_token.type === TOKEN$2.END_EXPR) {
+    this.handle_end_expr(current_token);
+  } else if (current_token.type === TOKEN$2.START_BLOCK) {
+    this.handle_start_block(current_token);
+  } else if (current_token.type === TOKEN$2.END_BLOCK) {
+    this.handle_end_block(current_token);
+  } else if (current_token.type === TOKEN$2.WORD) {
+    this.handle_word(current_token);
+  } else if (current_token.type === TOKEN$2.RESERVED) {
+    this.handle_word(current_token);
+  } else if (current_token.type === TOKEN$2.SEMICOLON) {
+    this.handle_semicolon(current_token);
+  } else if (current_token.type === TOKEN$2.STRING) {
+    this.handle_string(current_token);
+  } else if (current_token.type === TOKEN$2.EQUALS) {
+    this.handle_equals(current_token);
+  } else if (current_token.type === TOKEN$2.OPERATOR) {
+    this.handle_operator(current_token);
+  } else if (current_token.type === TOKEN$2.COMMA) {
+    this.handle_comma(current_token);
+  } else if (current_token.type === TOKEN$2.BLOCK_COMMENT) {
+    this.handle_block_comment(current_token, preserve_statement_flags);
+  } else if (current_token.type === TOKEN$2.COMMENT) {
+    this.handle_comment(current_token, preserve_statement_flags);
+  } else if (current_token.type === TOKEN$2.DOT) {
+    this.handle_dot(current_token);
+  } else if (current_token.type === TOKEN$2.EOF) {
+    this.handle_eof(current_token);
+  } else if (current_token.type === TOKEN$2.UNKNOWN) {
+    this.handle_unknown(current_token, preserve_statement_flags);
+  } else {
+    this.handle_unknown(current_token, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.handle_whitespace_and_comments = function(current_token, preserve_statement_flags) {
+  var newlines = current_token.newlines;
+  var keep_whitespace = this._options.keep_array_indentation && is_array(this._flags.mode);
+
+  if (current_token.comments_before) {
+    var comment_token = current_token.comments_before.next();
+    while (comment_token) {
+      // The cleanest handling of inline comments is to treat them as though they aren't there.
+      // Just continue formatting and the behavior should be logical.
+      // Also ignore unknown tokens.  Again, this should result in better behavior.
+      this.handle_whitespace_and_comments(comment_token, preserve_statement_flags);
+      this.handle_token(comment_token, preserve_statement_flags);
+      comment_token = current_token.comments_before.next();
+    }
+  }
+
+  if (keep_whitespace) {
+    for (var i = 0; i < newlines; i += 1) {
+      this.print_newline(i > 0, preserve_statement_flags);
+    }
+  } else {
+    if (this._options.max_preserve_newlines && newlines > this._options.max_preserve_newlines) {
+      newlines = this._options.max_preserve_newlines;
+    }
+
+    if (this._options.preserve_newlines) {
+      if (newlines > 1) {
+        this.print_newline(false, preserve_statement_flags);
+        for (var j = 1; j < newlines; j += 1) {
+          this.print_newline(true, preserve_statement_flags);
+        }
+      }
+    }
+  }
+
+};
+
+var newline_restricted_tokens = ['async', 'break', 'continue', 'return', 'throw', 'yield'];
+
+Beautifier.prototype.allow_wrap_or_preserved_newline = function(current_token, force_linewrap) {
+  force_linewrap = (force_linewrap === undefined) ? false : force_linewrap;
+
+  // Never wrap the first token on a line
+  if (this._output.just_added_newline()) {
+    return;
+  }
+
+  var shouldPreserveOrForce = (this._options.preserve_newlines && current_token.newlines) || force_linewrap;
+  var operatorLogicApplies = in_array$1(this._flags.last_token.text, positionable_operators$1) ||
+    in_array$1(current_token.text, positionable_operators$1);
+
+  if (operatorLogicApplies) {
+    var shouldPrintOperatorNewline = (
+        in_array$1(this._flags.last_token.text, positionable_operators$1) &&
+        in_array$1(this._options.operator_position, OPERATOR_POSITION_BEFORE_OR_PRESERVE)
+      ) ||
+      in_array$1(current_token.text, positionable_operators$1);
+    shouldPreserveOrForce = shouldPreserveOrForce && shouldPrintOperatorNewline;
+  }
+
+  if (shouldPreserveOrForce) {
+    this.print_newline(false, true);
+  } else if (this._options.wrap_line_length) {
+    if (reserved_array(this._flags.last_token, newline_restricted_tokens)) {
+      // These tokens should never have a newline inserted
+      // between them and the following expression.
+      return;
+    }
+    this._output.set_wrap_point();
+  }
+};
+
+Beautifier.prototype.print_newline = function(force_newline, preserve_statement_flags) {
+  if (!preserve_statement_flags) {
+    if (this._flags.last_token.text !== ';' && this._flags.last_token.text !== ',' && this._flags.last_token.text !== '=' && (this._flags.last_token.type !== TOKEN$2.OPERATOR || this._flags.last_token.text === '--' || this._flags.last_token.text === '++')) {
+      var next_token = this._tokens.peek();
+      while (this._flags.mode === MODE.Statement &&
+        !(this._flags.if_block && reserved_word(next_token, 'else')) &&
+        !this._flags.do_block) {
+        this.restore_mode();
+      }
+    }
+  }
+
+  if (this._output.add_new_line(force_newline)) {
+    this._flags.multiline_frame = true;
+  }
+};
+
+Beautifier.prototype.print_token_line_indentation = function(current_token) {
+  if (this._output.just_added_newline()) {
+    if (this._options.keep_array_indentation &&
+      current_token.newlines &&
+      (current_token.text === '[' || is_array(this._flags.mode))) {
+      this._output.current_line.set_indent(-1);
+      this._output.current_line.push(current_token.whitespace_before);
+      this._output.space_before_token = false;
+    } else if (this._output.set_indent(this._flags.indentation_level, this._flags.alignment)) {
+      this._flags.line_indent_level = this._flags.indentation_level;
+    }
+  }
+};
+
+Beautifier.prototype.print_token = function(current_token) {
+  if (this._output.raw) {
+    this._output.add_raw_token(current_token);
+    return;
+  }
+
+  if (this._options.comma_first && current_token.previous && current_token.previous.type === TOKEN$2.COMMA &&
+    this._output.just_added_newline()) {
+    if (this._output.previous_line.last() === ',') {
+      var popped = this._output.previous_line.pop();
+      // if the comma was already at the start of the line,
+      // pull back onto that line and reprint the indentation
+      if (this._output.previous_line.is_empty()) {
+        this._output.previous_line.push(popped);
+        this._output.trim(true);
+        this._output.current_line.pop();
+        this._output.trim();
+      }
+
+      // add the comma in front of the next token
+      this.print_token_line_indentation(current_token);
+      this._output.add_token(',');
+      this._output.space_before_token = true;
+    }
+  }
+
+  this.print_token_line_indentation(current_token);
+  this._output.non_breaking_space = true;
+  this._output.add_token(current_token.text);
+  if (this._output.previous_token_wrapped) {
+    this._flags.multiline_frame = true;
+  }
+};
+
+Beautifier.prototype.indent = function() {
+  this._flags.indentation_level += 1;
+  this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+};
+
+Beautifier.prototype.deindent = function() {
+  if (this._flags.indentation_level > 0 &&
+    ((!this._flags.parent) || this._flags.indentation_level > this._flags.parent.indentation_level)) {
+    this._flags.indentation_level -= 1;
+    this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+  }
+};
+
+Beautifier.prototype.set_mode = function(mode) {
+  if (this._flags) {
+    this._flag_store.push(this._flags);
+    this._previous_flags = this._flags;
+  } else {
+    this._previous_flags = this.create_flags(null, mode);
+  }
+
+  this._flags = this.create_flags(this._previous_flags, mode);
+  this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+};
+
+
+Beautifier.prototype.restore_mode = function() {
+  if (this._flag_store.length > 0) {
+    this._previous_flags = this._flags;
+    this._flags = this._flag_store.pop();
+    if (this._previous_flags.mode === MODE.Statement) {
+      remove_redundant_indentation(this._output, this._previous_flags);
+    }
+    this._output.set_indent(this._flags.indentation_level, this._flags.alignment);
+  }
+};
+
+Beautifier.prototype.start_of_object_property = function() {
+  return this._flags.parent.mode === MODE.ObjectLiteral && this._flags.mode === MODE.Statement && (
+    (this._flags.last_token.text === ':' && this._flags.ternary_depth === 0) || (reserved_array(this._flags.last_token, ['get', 'set'])));
+};
+
+Beautifier.prototype.start_of_statement = function(current_token) {
+  var start = false;
+  start = start || reserved_array(this._flags.last_token, ['var', 'let', 'const']) && current_token.type === TOKEN$2.WORD;
+  start = start || reserved_word(this._flags.last_token, 'do');
+  start = start || (!(this._flags.parent.mode === MODE.ObjectLiteral && this._flags.mode === MODE.Statement)) && reserved_array(this._flags.last_token, newline_restricted_tokens) && !current_token.newlines;
+  start = start || reserved_word(this._flags.last_token, 'else') &&
+    !(reserved_word(current_token, 'if') && !current_token.comments_before);
+  start = start || (this._flags.last_token.type === TOKEN$2.END_EXPR && (this._previous_flags.mode === MODE.ForInitializer || this._previous_flags.mode === MODE.Conditional));
+  start = start || (this._flags.last_token.type === TOKEN$2.WORD && this._flags.mode === MODE.BlockStatement &&
+    !this._flags.in_case &&
+    !(current_token.text === '--' || current_token.text === '++') &&
+    this._last_last_text !== 'function' &&
+    current_token.type !== TOKEN$2.WORD && current_token.type !== TOKEN$2.RESERVED);
+  start = start || (this._flags.mode === MODE.ObjectLiteral && (
+    (this._flags.last_token.text === ':' && this._flags.ternary_depth === 0) || reserved_array(this._flags.last_token, ['get', 'set'])));
+
+  if (start) {
+    this.set_mode(MODE.Statement);
+    this.indent();
+
+    this.handle_whitespace_and_comments(current_token, true);
+
+    // Issue #276:
+    // If starting a new statement with [if, for, while, do], push to a new line.
+    // if (a) if (b) if(c) d(); else e(); else f();
+    if (!this.start_of_object_property()) {
+      this.allow_wrap_or_preserved_newline(current_token,
+        reserved_array(current_token, ['do', 'for', 'if', 'while']));
+    }
+    return true;
+  }
+  return false;
+};
+
+Beautifier.prototype.handle_start_expr = function(current_token) {
+  // The conditional starts the statement if appropriate.
+  if (!this.start_of_statement(current_token)) {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  var next_mode = MODE.Expression;
+  if (current_token.text === '[') {
+
+    if (this._flags.last_token.type === TOKEN$2.WORD || this._flags.last_token.text === ')') {
+      // this is array index specifier, break immediately
+      // a[x], fn()[x]
+      if (reserved_array(this._flags.last_token, line_starters$1)) {
+        this._output.space_before_token = true;
+      }
+      this.print_token(current_token);
+      this.set_mode(next_mode);
+      this.indent();
+      if (this._options.space_in_paren) {
+        this._output.space_before_token = true;
+      }
+      return;
+    }
+
+    next_mode = MODE.ArrayLiteral;
+    if (is_array(this._flags.mode)) {
+      if (this._flags.last_token.text === '[' ||
+        (this._flags.last_token.text === ',' && (this._last_last_text === ']' || this._last_last_text === '}'))) {
+        // ], [ goes to new line
+        // }, [ goes to new line
+        if (!this._options.keep_array_indentation) {
+          this.print_newline();
+        }
+      }
+    }
+
+    if (!in_array$1(this._flags.last_token.type, [TOKEN$2.START_EXPR, TOKEN$2.END_EXPR, TOKEN$2.WORD, TOKEN$2.OPERATOR])) {
+      this._output.space_before_token = true;
+    }
+  } else {
+    if (this._flags.last_token.type === TOKEN$2.RESERVED) {
+      if (this._flags.last_token.text === 'for') {
+        this._output.space_before_token = this._options.space_before_conditional;
+        next_mode = MODE.ForInitializer;
+      } else if (in_array$1(this._flags.last_token.text, ['if', 'while'])) {
+        this._output.space_before_token = this._options.space_before_conditional;
+        next_mode = MODE.Conditional;
+      } else if (in_array$1(this._flags.last_word, ['await', 'async'])) {
+        // Should be a space between await and an IIFE, or async and an arrow function
+        this._output.space_before_token = true;
+      } else if (this._flags.last_token.text === 'import' && current_token.whitespace_before === '') {
+        this._output.space_before_token = false;
+      } else if (in_array$1(this._flags.last_token.text, line_starters$1) || this._flags.last_token.text === 'catch') {
+        this._output.space_before_token = true;
+      }
+    } else if (this._flags.last_token.type === TOKEN$2.EQUALS || this._flags.last_token.type === TOKEN$2.OPERATOR) {
+      // Support of this kind of newline preservation.
+      // a = (b &&
+      //     (c || d));
+      if (!this.start_of_object_property()) {
+        this.allow_wrap_or_preserved_newline(current_token);
+      }
+    } else if (this._flags.last_token.type === TOKEN$2.WORD) {
+      this._output.space_before_token = false;
+
+      // function name() vs function name ()
+      // function* name() vs function* name ()
+      // async name() vs async name ()
+      // In ES6, you can also define the method properties of an object
+      // var obj = {a: function() {}}
+      // It can be abbreviated
+      // var obj = {a() {}}
+      // var obj = { a() {}} vs var obj = { a () {}}
+      // var obj = { * a() {}} vs var obj = { * a () {}}
+      var peek_back_two = this._tokens.peek(-3);
+      if (this._options.space_after_named_function && peek_back_two) {
+        // peek starts at next character so -1 is current token
+        var peek_back_three = this._tokens.peek(-4);
+        if (reserved_array(peek_back_two, ['async', 'function']) ||
+          (peek_back_two.text === '*' && reserved_array(peek_back_three, ['async', 'function']))) {
+          this._output.space_before_token = true;
+        } else if (this._flags.mode === MODE.ObjectLiteral) {
+          if ((peek_back_two.text === '{' || peek_back_two.text === ',') ||
+            (peek_back_two.text === '*' && (peek_back_three.text === '{' || peek_back_three.text === ','))) {
+            this._output.space_before_token = true;
+          }
+        }
+      }
+    } else {
+      // Support preserving wrapped arrow function expressions
+      // a.b('c',
+      //     () => d.e
+      // )
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+
+    // function() vs function ()
+    // yield*() vs yield* ()
+    // function*() vs function* ()
+    if ((this._flags.last_token.type === TOKEN$2.RESERVED && (this._flags.last_word === 'function' || this._flags.last_word === 'typeof')) ||
+      (this._flags.last_token.text === '*' &&
+        (in_array$1(this._last_last_text, ['function', 'yield']) ||
+          (this._flags.mode === MODE.ObjectLiteral && in_array$1(this._last_last_text, ['{', ',']))))) {
+      this._output.space_before_token = this._options.space_after_anon_function;
+    }
+  }
+
+  if (this._flags.last_token.text === ';' || this._flags.last_token.type === TOKEN$2.START_BLOCK) {
+    this.print_newline();
+  } else if (this._flags.last_token.type === TOKEN$2.END_EXPR || this._flags.last_token.type === TOKEN$2.START_EXPR || this._flags.last_token.type === TOKEN$2.END_BLOCK || this._flags.last_token.text === '.' || this._flags.last_token.type === TOKEN$2.COMMA) {
+    // do nothing on (( and )( and ][ and ]( and .(
+    // TODO: Consider whether forcing this is required.  Review failing tests when removed.
+    this.allow_wrap_or_preserved_newline(current_token, current_token.newlines);
+  }
+
+  this.print_token(current_token);
+  this.set_mode(next_mode);
+  if (this._options.space_in_paren) {
+    this._output.space_before_token = true;
+  }
+
+  // In all cases, if we newline while inside an expression it should be indented.
+  this.indent();
+};
+
+Beautifier.prototype.handle_end_expr = function(current_token) {
+  // statements inside expressions are not valid syntax, but...
+  // statements must all be closed when their container closes
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+
+  this.handle_whitespace_and_comments(current_token);
+
+  if (this._flags.multiline_frame) {
+    this.allow_wrap_or_preserved_newline(current_token,
+      current_token.text === ']' && is_array(this._flags.mode) && !this._options.keep_array_indentation);
+  }
+
+  if (this._options.space_in_paren) {
+    if (this._flags.last_token.type === TOKEN$2.START_EXPR && !this._options.space_in_empty_paren) {
+      // () [] no inner space in empty parens like these, ever, ref #320
+      this._output.trim();
+      this._output.space_before_token = false;
+    } else {
+      this._output.space_before_token = true;
+    }
+  }
+  this.deindent();
+  this.print_token(current_token);
+  this.restore_mode();
+
+  remove_redundant_indentation(this._output, this._previous_flags);
+
+  // do {} while () // no statement required after
+  if (this._flags.do_while && this._previous_flags.mode === MODE.Conditional) {
+    this._previous_flags.mode = MODE.Expression;
+    this._flags.do_block = false;
+    this._flags.do_while = false;
+
+  }
+};
+
+Beautifier.prototype.handle_start_block = function(current_token) {
+  this.handle_whitespace_and_comments(current_token);
+
+  // Check if this is should be treated as a ObjectLiteral
+  var next_token = this._tokens.peek();
+  var second_token = this._tokens.peek(1);
+  if (this._flags.last_word === 'switch' && this._flags.last_token.type === TOKEN$2.END_EXPR) {
+    this.set_mode(MODE.BlockStatement);
+    this._flags.in_case_statement = true;
+  } else if (this._flags.case_body) {
+    this.set_mode(MODE.BlockStatement);
+  } else if (second_token && (
+      (in_array$1(second_token.text, [':', ',']) && in_array$1(next_token.type, [TOKEN$2.STRING, TOKEN$2.WORD, TOKEN$2.RESERVED])) ||
+      (in_array$1(next_token.text, ['get', 'set', '...']) && in_array$1(second_token.type, [TOKEN$2.WORD, TOKEN$2.RESERVED]))
+    )) {
+    // We don't support TypeScript,but we didn't break it for a very long time.
+    // We'll try to keep not breaking it.
+    if (!in_array$1(this._last_last_text, ['class', 'interface'])) {
+      this.set_mode(MODE.ObjectLiteral);
+    } else {
+      this.set_mode(MODE.BlockStatement);
+    }
+  } else if (this._flags.last_token.type === TOKEN$2.OPERATOR && this._flags.last_token.text === '=>') {
+    // arrow function: (param1, paramN) => { statements }
+    this.set_mode(MODE.BlockStatement);
+  } else if (in_array$1(this._flags.last_token.type, [TOKEN$2.EQUALS, TOKEN$2.START_EXPR, TOKEN$2.COMMA, TOKEN$2.OPERATOR]) ||
+    reserved_array(this._flags.last_token, ['return', 'throw', 'import', 'default'])
+  ) {
+    // Detecting shorthand function syntax is difficult by scanning forward,
+    //     so check the surrounding context.
+    // If the block is being returned, imported, export default, passed as arg,
+    //     assigned with = or assigned in a nested object, treat as an ObjectLiteral.
+    this.set_mode(MODE.ObjectLiteral);
+  } else {
+    this.set_mode(MODE.BlockStatement);
+  }
+
+  var empty_braces = !next_token.comments_before && next_token.text === '}';
+  var empty_anonymous_function = empty_braces && this._flags.last_word === 'function' &&
+    this._flags.last_token.type === TOKEN$2.END_EXPR;
+
+  if (this._options.brace_preserve_inline) // check for inline, set inline_frame if so
+  {
+    // search forward for a newline wanted inside this block
+    var index = 0;
+    var check_token = null;
+    this._flags.inline_frame = true;
+    do {
+      index += 1;
+      check_token = this._tokens.peek(index - 1);
+      if (check_token.newlines) {
+        this._flags.inline_frame = false;
+        break;
+      }
+    } while (check_token.type !== TOKEN$2.EOF &&
+      !(check_token.type === TOKEN$2.END_BLOCK && check_token.opened === current_token));
+  }
+
+  if ((this._options.brace_style === "expand" ||
+      (this._options.brace_style === "none" && current_token.newlines)) &&
+    !this._flags.inline_frame) {
+    if (this._flags.last_token.type !== TOKEN$2.OPERATOR &&
+      (empty_anonymous_function ||
+        this._flags.last_token.type === TOKEN$2.EQUALS ||
+        (reserved_array(this._flags.last_token, special_words) && this._flags.last_token.text !== 'else'))) {
+      this._output.space_before_token = true;
+    } else {
+      this.print_newline(false, true);
+    }
+  } else { // collapse || inline_frame
+    if (is_array(this._previous_flags.mode) && (this._flags.last_token.type === TOKEN$2.START_EXPR || this._flags.last_token.type === TOKEN$2.COMMA)) {
+      if (this._flags.last_token.type === TOKEN$2.COMMA || this._options.space_in_paren) {
+        this._output.space_before_token = true;
+      }
+
+      if (this._flags.last_token.type === TOKEN$2.COMMA || (this._flags.last_token.type === TOKEN$2.START_EXPR && this._flags.inline_frame)) {
+        this.allow_wrap_or_preserved_newline(current_token);
+        this._previous_flags.multiline_frame = this._previous_flags.multiline_frame || this._flags.multiline_frame;
+        this._flags.multiline_frame = false;
+      }
+    }
+    if (this._flags.last_token.type !== TOKEN$2.OPERATOR && this._flags.last_token.type !== TOKEN$2.START_EXPR) {
+      if (this._flags.last_token.type === TOKEN$2.START_BLOCK && !this._flags.inline_frame) {
+        this.print_newline();
+      } else {
+        this._output.space_before_token = true;
+      }
+    }
+  }
+  this.print_token(current_token);
+  this.indent();
+
+  // Except for specific cases, open braces are followed by a new line.
+  if (!empty_braces && !(this._options.brace_preserve_inline && this._flags.inline_frame)) {
+    this.print_newline();
+  }
+};
+
+Beautifier.prototype.handle_end_block = function(current_token) {
+  // statements must all be closed when their container closes
+  this.handle_whitespace_and_comments(current_token);
+
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+
+  var empty_braces = this._flags.last_token.type === TOKEN$2.START_BLOCK;
+
+  if (this._flags.inline_frame && !empty_braces) { // try inline_frame (only set if this._options.braces-preserve-inline) first
+    this._output.space_before_token = true;
+  } else if (this._options.brace_style === "expand") {
+    if (!empty_braces) {
+      this.print_newline();
+    }
+  } else {
+    // skip {}
+    if (!empty_braces) {
+      if (is_array(this._flags.mode) && this._options.keep_array_indentation) {
+        // we REALLY need a newline here, but newliner would skip that
+        this._options.keep_array_indentation = false;
+        this.print_newline();
+        this._options.keep_array_indentation = true;
+
+      } else {
+        this.print_newline();
+      }
+    }
+  }
+  this.restore_mode();
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_word = function(current_token) {
+  if (current_token.type === TOKEN$2.RESERVED) {
+    if (in_array$1(current_token.text, ['set', 'get']) && this._flags.mode !== MODE.ObjectLiteral) {
+      current_token.type = TOKEN$2.WORD;
+    } else if (current_token.text === 'import' && this._tokens.peek().text === '(') {
+      current_token.type = TOKEN$2.WORD;
+    } else if (in_array$1(current_token.text, ['as', 'from']) && !this._flags.import_block) {
+      current_token.type = TOKEN$2.WORD;
+    } else if (this._flags.mode === MODE.ObjectLiteral) {
+      var next_token = this._tokens.peek();
+      if (next_token.text === ':') {
+        current_token.type = TOKEN$2.WORD;
+      }
+    }
+  }
+
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    if (reserved_array(this._flags.last_token, ['var', 'let', 'const']) && current_token.type === TOKEN$2.WORD) {
+      this._flags.declaration_statement = true;
+    }
+  } else if (current_token.newlines && !is_expression(this._flags.mode) &&
+    (this._flags.last_token.type !== TOKEN$2.OPERATOR || (this._flags.last_token.text === '--' || this._flags.last_token.text === '++')) &&
+    this._flags.last_token.type !== TOKEN$2.EQUALS &&
+    (this._options.preserve_newlines || !reserved_array(this._flags.last_token, ['var', 'let', 'const', 'set', 'get']))) {
+    this.handle_whitespace_and_comments(current_token);
+    this.print_newline();
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  if (this._flags.do_block && !this._flags.do_while) {
+    if (reserved_word(current_token, 'while')) {
+      // do {} ## while ()
+      this._output.space_before_token = true;
+      this.print_token(current_token);
+      this._output.space_before_token = true;
+      this._flags.do_while = true;
+      return;
+    } else {
+      // do {} should always have while as the next word.
+      // if we don't see the expected while, recover
+      this.print_newline();
+      this._flags.do_block = false;
+    }
+  }
+
+  // if may be followed by else, or not
+  // Bare/inline ifs are tricky
+  // Need to unwind the modes correctly: if (a) if (b) c(); else d(); else e();
+  if (this._flags.if_block) {
+    if (!this._flags.else_block && reserved_word(current_token, 'else')) {
+      this._flags.else_block = true;
+    } else {
+      while (this._flags.mode === MODE.Statement) {
+        this.restore_mode();
+      }
+      this._flags.if_block = false;
+      this._flags.else_block = false;
+    }
+  }
+
+  if (this._flags.in_case_statement && reserved_array(current_token, ['case', 'default'])) {
+    this.print_newline();
+    if (this._flags.last_token.type !== TOKEN$2.END_BLOCK && (this._flags.case_body || this._options.jslint_happy)) {
+      // switch cases following one another
+      this.deindent();
+    }
+    this._flags.case_body = false;
+
+    this.print_token(current_token);
+    this._flags.in_case = true;
+    return;
+  }
+
+  if (this._flags.last_token.type === TOKEN$2.COMMA || this._flags.last_token.type === TOKEN$2.START_EXPR || this._flags.last_token.type === TOKEN$2.EQUALS || this._flags.last_token.type === TOKEN$2.OPERATOR) {
+    if (!this.start_of_object_property()) {
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+  }
+
+  if (reserved_word(current_token, 'function')) {
+    if (in_array$1(this._flags.last_token.text, ['}', ';']) ||
+      (this._output.just_added_newline() && !(in_array$1(this._flags.last_token.text, ['(', '[', '{', ':', '=', ',']) || this._flags.last_token.type === TOKEN$2.OPERATOR))) {
+      // make sure there is a nice clean space of at least one blank line
+      // before a new function definition
+      if (!this._output.just_added_blankline() && !current_token.comments_before) {
+        this.print_newline();
+        this.print_newline(true);
+      }
+    }
+    if (this._flags.last_token.type === TOKEN$2.RESERVED || this._flags.last_token.type === TOKEN$2.WORD) {
+      if (reserved_array(this._flags.last_token, ['get', 'set', 'new', 'export']) ||
+        reserved_array(this._flags.last_token, newline_restricted_tokens)) {
+        this._output.space_before_token = true;
+      } else if (reserved_word(this._flags.last_token, 'default') && this._last_last_text === 'export') {
+        this._output.space_before_token = true;
+      } else if (this._flags.last_token.text === 'declare') {
+        // accomodates Typescript declare function formatting
+        this._output.space_before_token = true;
+      } else {
+        this.print_newline();
+      }
+    } else if (this._flags.last_token.type === TOKEN$2.OPERATOR || this._flags.last_token.text === '=') {
+      // foo = function
+      this._output.space_before_token = true;
+    } else if (!this._flags.multiline_frame && (is_expression(this._flags.mode) || is_array(this._flags.mode))) ; else {
+      this.print_newline();
+    }
+
+    this.print_token(current_token);
+    this._flags.last_word = current_token.text;
+    return;
+  }
+
+  var prefix = 'NONE';
+
+  if (this._flags.last_token.type === TOKEN$2.END_BLOCK) {
+
+    if (this._previous_flags.inline_frame) {
+      prefix = 'SPACE';
+    } else if (!reserved_array(current_token, ['else', 'catch', 'finally', 'from'])) {
+      prefix = 'NEWLINE';
+    } else {
+      if (this._options.brace_style === "expand" ||
+        this._options.brace_style === "end-expand" ||
+        (this._options.brace_style === "none" && current_token.newlines)) {
+        prefix = 'NEWLINE';
+      } else {
+        prefix = 'SPACE';
+        this._output.space_before_token = true;
+      }
+    }
+  } else if (this._flags.last_token.type === TOKEN$2.SEMICOLON && this._flags.mode === MODE.BlockStatement) {
+    // TODO: Should this be for STATEMENT as well?
+    prefix = 'NEWLINE';
+  } else if (this._flags.last_token.type === TOKEN$2.SEMICOLON && is_expression(this._flags.mode)) {
+    prefix = 'SPACE';
+  } else if (this._flags.last_token.type === TOKEN$2.STRING) {
+    prefix = 'NEWLINE';
+  } else if (this._flags.last_token.type === TOKEN$2.RESERVED || this._flags.last_token.type === TOKEN$2.WORD ||
+    (this._flags.last_token.text === '*' &&
+      (in_array$1(this._last_last_text, ['function', 'yield']) ||
+        (this._flags.mode === MODE.ObjectLiteral && in_array$1(this._last_last_text, ['{', ',']))))) {
+    prefix = 'SPACE';
+  } else if (this._flags.last_token.type === TOKEN$2.START_BLOCK) {
+    if (this._flags.inline_frame) {
+      prefix = 'SPACE';
+    } else {
+      prefix = 'NEWLINE';
+    }
+  } else if (this._flags.last_token.type === TOKEN$2.END_EXPR) {
+    this._output.space_before_token = true;
+    prefix = 'NEWLINE';
+  }
+
+  if (reserved_array(current_token, line_starters$1) && this._flags.last_token.text !== ')') {
+    if (this._flags.inline_frame || this._flags.last_token.text === 'else' || this._flags.last_token.text === 'export') {
+      prefix = 'SPACE';
+    } else {
+      prefix = 'NEWLINE';
+    }
+
+  }
+
+  if (reserved_array(current_token, ['else', 'catch', 'finally'])) {
+    if ((!(this._flags.last_token.type === TOKEN$2.END_BLOCK && this._previous_flags.mode === MODE.BlockStatement) ||
+        this._options.brace_style === "expand" ||
+        this._options.brace_style === "end-expand" ||
+        (this._options.brace_style === "none" && current_token.newlines)) &&
+      !this._flags.inline_frame) {
+      this.print_newline();
+    } else {
+      this._output.trim(true);
+      var line = this._output.current_line;
+      // If we trimmed and there's something other than a close block before us
+      // put a newline back in.  Handles '} // comment' scenario.
+      if (line.last() !== '}') {
+        this.print_newline();
+      }
+      this._output.space_before_token = true;
+    }
+  } else if (prefix === 'NEWLINE') {
+    if (reserved_array(this._flags.last_token, special_words)) {
+      // no newline between 'return nnn'
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.text === 'declare' && reserved_array(current_token, ['var', 'let', 'const'])) {
+      // accomodates Typescript declare formatting
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.type !== TOKEN$2.END_EXPR) {
+      if ((this._flags.last_token.type !== TOKEN$2.START_EXPR || !reserved_array(current_token, ['var', 'let', 'const'])) && this._flags.last_token.text !== ':') {
+        // no need to force newline on 'var': for (var x = 0...)
+        if (reserved_word(current_token, 'if') && reserved_word(current_token.previous, 'else')) {
+          // no newline for } else if {
+          this._output.space_before_token = true;
+        } else {
+          this.print_newline();
+        }
+      }
+    } else if (reserved_array(current_token, line_starters$1) && this._flags.last_token.text !== ')') {
+      this.print_newline();
+    }
+  } else if (this._flags.multiline_frame && is_array(this._flags.mode) && this._flags.last_token.text === ',' && this._last_last_text === '}') {
+    this.print_newline(); // }, in lists get a newline treatment
+  } else if (prefix === 'SPACE') {
+    this._output.space_before_token = true;
+  }
+  if (current_token.previous && (current_token.previous.type === TOKEN$2.WORD || current_token.previous.type === TOKEN$2.RESERVED)) {
+    this._output.space_before_token = true;
+  }
+  this.print_token(current_token);
+  this._flags.last_word = current_token.text;
+
+  if (current_token.type === TOKEN$2.RESERVED) {
+    if (current_token.text === 'do') {
+      this._flags.do_block = true;
+    } else if (current_token.text === 'if') {
+      this._flags.if_block = true;
+    } else if (current_token.text === 'import') {
+      this._flags.import_block = true;
+    } else if (this._flags.import_block && reserved_word(current_token, 'from')) {
+      this._flags.import_block = false;
+    }
+  }
+};
+
+Beautifier.prototype.handle_semicolon = function(current_token) {
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    // Semicolon can be the start (and end) of a statement
+    this._output.space_before_token = false;
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  var next_token = this._tokens.peek();
+  while (this._flags.mode === MODE.Statement &&
+    !(this._flags.if_block && reserved_word(next_token, 'else')) &&
+    !this._flags.do_block) {
+    this.restore_mode();
+  }
+
+  // hacky but effective for the moment
+  if (this._flags.import_block) {
+    this._flags.import_block = false;
+  }
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_string = function(current_token) {
+  if (this.start_of_statement(current_token)) {
+    // The conditional starts the statement if appropriate.
+    // One difference - strings want at least a space before
+    this._output.space_before_token = true;
+  } else {
+    this.handle_whitespace_and_comments(current_token);
+    if (this._flags.last_token.type === TOKEN$2.RESERVED || this._flags.last_token.type === TOKEN$2.WORD || this._flags.inline_frame) {
+      this._output.space_before_token = true;
+    } else if (this._flags.last_token.type === TOKEN$2.COMMA || this._flags.last_token.type === TOKEN$2.START_EXPR || this._flags.last_token.type === TOKEN$2.EQUALS || this._flags.last_token.type === TOKEN$2.OPERATOR) {
+      if (!this.start_of_object_property()) {
+        this.allow_wrap_or_preserved_newline(current_token);
+      }
+    } else {
+      this.print_newline();
+    }
+  }
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_equals = function(current_token) {
+  if (this.start_of_statement(current_token)) ; else {
+    this.handle_whitespace_and_comments(current_token);
+  }
+
+  if (this._flags.declaration_statement) {
+    // just got an '=' in a var-line, different formatting/line-breaking, etc will now be done
+    this._flags.declaration_assignment = true;
+  }
+  this._output.space_before_token = true;
+  this.print_token(current_token);
+  this._output.space_before_token = true;
+};
+
+Beautifier.prototype.handle_comma = function(current_token) {
+  this.handle_whitespace_and_comments(current_token, true);
+
+  this.print_token(current_token);
+  this._output.space_before_token = true;
+  if (this._flags.declaration_statement) {
+    if (is_expression(this._flags.parent.mode)) {
+      // do not break on comma, for(var a = 1, b = 2)
+      this._flags.declaration_assignment = false;
+    }
+
+    if (this._flags.declaration_assignment) {
+      this._flags.declaration_assignment = false;
+      this.print_newline(false, true);
+    } else if (this._options.comma_first) {
+      // for comma-first, we want to allow a newline before the comma
+      // to turn into a newline after the comma, which we will fixup later
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+  } else if (this._flags.mode === MODE.ObjectLiteral ||
+    (this._flags.mode === MODE.Statement && this._flags.parent.mode === MODE.ObjectLiteral)) {
+    if (this._flags.mode === MODE.Statement) {
+      this.restore_mode();
+    }
+
+    if (!this._flags.inline_frame) {
+      this.print_newline();
+    }
+  } else if (this._options.comma_first) {
+    // EXPR or DO_BLOCK
+    // for comma-first, we want to allow a newline before the comma
+    // to turn into a newline after the comma, which we will fixup later
+    this.allow_wrap_or_preserved_newline(current_token);
+  }
+};
+
+Beautifier.prototype.handle_operator = function(current_token) {
+  var isGeneratorAsterisk = current_token.text === '*' &&
+    (reserved_array(this._flags.last_token, ['function', 'yield']) ||
+      (in_array$1(this._flags.last_token.type, [TOKEN$2.START_BLOCK, TOKEN$2.COMMA, TOKEN$2.END_BLOCK, TOKEN$2.SEMICOLON]))
+    );
+  var isUnary = in_array$1(current_token.text, ['-', '+']) && (
+    in_array$1(this._flags.last_token.type, [TOKEN$2.START_BLOCK, TOKEN$2.START_EXPR, TOKEN$2.EQUALS, TOKEN$2.OPERATOR]) ||
+    in_array$1(this._flags.last_token.text, line_starters$1) ||
+    this._flags.last_token.text === ','
+  );
+
+  if (this.start_of_statement(current_token)) ; else {
+    var preserve_statement_flags = !isGeneratorAsterisk;
+    this.handle_whitespace_and_comments(current_token, preserve_statement_flags);
+  }
+
+  if (reserved_array(this._flags.last_token, special_words)) {
+    // "return" had a special handling in TK_WORD. Now we need to return the favor
+    this._output.space_before_token = true;
+    this.print_token(current_token);
+    return;
+  }
+
+  // hack for actionscript's import .*;
+  if (current_token.text === '*' && this._flags.last_token.type === TOKEN$2.DOT) {
+    this.print_token(current_token);
+    return;
+  }
+
+  if (current_token.text === '::') {
+    // no spaces around exotic namespacing syntax operator
+    this.print_token(current_token);
+    return;
+  }
+
+  // Allow line wrapping between operators when operator_position is
+  //   set to before or preserve
+  if (this._flags.last_token.type === TOKEN$2.OPERATOR && in_array$1(this._options.operator_position, OPERATOR_POSITION_BEFORE_OR_PRESERVE)) {
+    this.allow_wrap_or_preserved_newline(current_token);
+  }
+
+  if (current_token.text === ':' && this._flags.in_case) {
+    this.print_token(current_token);
+
+    this._flags.in_case = false;
+    this._flags.case_body = true;
+    if (this._tokens.peek().type !== TOKEN$2.START_BLOCK) {
+      this.indent();
+      this.print_newline();
+    } else {
+      this._output.space_before_token = true;
+    }
+    return;
+  }
+
+  var space_before = true;
+  var space_after = true;
+  var in_ternary = false;
+  if (current_token.text === ':') {
+    if (this._flags.ternary_depth === 0) {
+      // Colon is invalid javascript outside of ternary and object, but do our best to guess what was meant.
+      space_before = false;
+    } else {
+      this._flags.ternary_depth -= 1;
+      in_ternary = true;
+    }
+  } else if (current_token.text === '?') {
+    this._flags.ternary_depth += 1;
+  }
+
+  // let's handle the operator_position option prior to any conflicting logic
+  if (!isUnary && !isGeneratorAsterisk && this._options.preserve_newlines && in_array$1(current_token.text, positionable_operators$1)) {
+    var isColon = current_token.text === ':';
+    var isTernaryColon = (isColon && in_ternary);
+    var isOtherColon = (isColon && !in_ternary);
+
+    switch (this._options.operator_position) {
+      case OPERATOR_POSITION.before_newline:
+        // if the current token is : and it's not a ternary statement then we set space_before to false
+        this._output.space_before_token = !isOtherColon;
+
+        this.print_token(current_token);
+
+        if (!isColon || isTernaryColon) {
+          this.allow_wrap_or_preserved_newline(current_token);
+        }
+
+        this._output.space_before_token = true;
+        return;
+
+      case OPERATOR_POSITION.after_newline:
+        // if the current token is anything but colon, or (via deduction) it's a colon and in a ternary statement,
+        //   then print a newline.
+
+        this._output.space_before_token = true;
+
+        if (!isColon || isTernaryColon) {
+          if (this._tokens.peek().newlines) {
+            this.print_newline(false, true);
+          } else {
+            this.allow_wrap_or_preserved_newline(current_token);
+          }
+        } else {
+          this._output.space_before_token = false;
+        }
+
+        this.print_token(current_token);
+
+        this._output.space_before_token = true;
+        return;
+
+      case OPERATOR_POSITION.preserve_newline:
+        if (!isOtherColon) {
+          this.allow_wrap_or_preserved_newline(current_token);
+        }
+
+        // if we just added a newline, or the current token is : and it's not a ternary statement,
+        //   then we set space_before to false
+        space_before = !(this._output.just_added_newline() || isOtherColon);
+
+        this._output.space_before_token = space_before;
+        this.print_token(current_token);
+        this._output.space_before_token = true;
+        return;
+    }
+  }
+
+  if (isGeneratorAsterisk) {
+    this.allow_wrap_or_preserved_newline(current_token);
+    space_before = false;
+    var next_token = this._tokens.peek();
+    space_after = next_token && in_array$1(next_token.type, [TOKEN$2.WORD, TOKEN$2.RESERVED]);
+  } else if (current_token.text === '...') {
+    this.allow_wrap_or_preserved_newline(current_token);
+    space_before = this._flags.last_token.type === TOKEN$2.START_BLOCK;
+    space_after = false;
+  } else if (in_array$1(current_token.text, ['--', '++', '!', '~']) || isUnary) {
+    // unary operators (and binary +/- pretending to be unary) special cases
+    if (this._flags.last_token.type === TOKEN$2.COMMA || this._flags.last_token.type === TOKEN$2.START_EXPR) {
+      this.allow_wrap_or_preserved_newline(current_token);
+    }
+
+    space_before = false;
+    space_after = false;
+
+    // http://www.ecma-international.org/ecma-262/5.1/#sec-7.9.1
+    // if there is a newline between -- or ++ and anything else we should preserve it.
+    if (current_token.newlines && (current_token.text === '--' || current_token.text === '++')) {
+      this.print_newline(false, true);
+    }
+
+    if (this._flags.last_token.text === ';' && is_expression(this._flags.mode)) {
+      // for (;; ++i)
+      //        ^^^
+      space_before = true;
+    }
+
+    if (this._flags.last_token.type === TOKEN$2.RESERVED) {
+      space_before = true;
+    } else if (this._flags.last_token.type === TOKEN$2.END_EXPR) {
+      space_before = !(this._flags.last_token.text === ']' && (current_token.text === '--' || current_token.text === '++'));
+    } else if (this._flags.last_token.type === TOKEN$2.OPERATOR) {
+      // a++ + ++b;
+      // a - -b
+      space_before = in_array$1(current_token.text, ['--', '-', '++', '+']) && in_array$1(this._flags.last_token.text, ['--', '-', '++', '+']);
+      // + and - are not unary when preceeded by -- or ++ operator
+      // a-- + b
+      // a * +b
+      // a - -b
+      if (in_array$1(current_token.text, ['+', '-']) && in_array$1(this._flags.last_token.text, ['--', '++'])) {
+        space_after = true;
+      }
+    }
+
+
+    if (((this._flags.mode === MODE.BlockStatement && !this._flags.inline_frame) || this._flags.mode === MODE.Statement) &&
+      (this._flags.last_token.text === '{' || this._flags.last_token.text === ';')) {
+      // { foo; --i }
+      // foo(); --bar;
+      this.print_newline();
+    }
+  }
+
+  this._output.space_before_token = this._output.space_before_token || space_before;
+  this.print_token(current_token);
+  this._output.space_before_token = space_after;
+};
+
+Beautifier.prototype.handle_block_comment = function(current_token, preserve_statement_flags) {
+  if (this._output.raw) {
+    this._output.add_raw_token(current_token);
+    if (current_token.directives && current_token.directives.preserve === 'end') {
+      // If we're testing the raw output behavior, do not allow a directive to turn it off.
+      this._output.raw = this._options.test_output_raw;
+    }
+    return;
+  }
+
+  if (current_token.directives) {
+    this.print_newline(false, preserve_statement_flags);
+    this.print_token(current_token);
+    if (current_token.directives.preserve === 'start') {
+      this._output.raw = true;
+    }
+    this.print_newline(false, true);
+    return;
+  }
+
+  // inline block
+  if (!acorn.newline.test(current_token.text) && !current_token.newlines) {
+    this._output.space_before_token = true;
+    this.print_token(current_token);
+    this._output.space_before_token = true;
+    return;
+  } else {
+    this.print_block_commment(current_token, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.print_block_commment = function(current_token, preserve_statement_flags) {
+  var lines = split_linebreaks(current_token.text);
+  var j; // iterator for this case
+  var javadoc = false;
+  var starless = false;
+  var lastIndent = current_token.whitespace_before;
+  var lastIndentLength = lastIndent.length;
+
+  // block comment starts with a new line
+  this.print_newline(false, preserve_statement_flags);
+
+  // first line always indented
+  this.print_token_line_indentation(current_token);
+  this._output.add_token(lines[0]);
+  this.print_newline(false, preserve_statement_flags);
+
+
+  if (lines.length > 1) {
+    lines = lines.slice(1);
+    javadoc = all_lines_start_with(lines, '*');
+    starless = each_line_matches_indent(lines, lastIndent);
+
+    if (javadoc) {
+      this._flags.alignment = 1;
+    }
+
+    for (j = 0; j < lines.length; j++) {
+      if (javadoc) {
+        // javadoc: reformat and re-indent
+        this.print_token_line_indentation(current_token);
+        this._output.add_token(ltrim(lines[j]));
+      } else if (starless && lines[j]) {
+        // starless: re-indent non-empty content, avoiding trim
+        this.print_token_line_indentation(current_token);
+        this._output.add_token(lines[j].substring(lastIndentLength));
+      } else {
+        // normal comments output raw
+        this._output.current_line.set_indent(-1);
+        this._output.add_token(lines[j]);
+      }
+
+      // for comments on their own line or  more than one line, make sure there's a new line after
+      this.print_newline(false, preserve_statement_flags);
+    }
+
+    this._flags.alignment = 0;
+  }
+};
+
+
+Beautifier.prototype.handle_comment = function(current_token, preserve_statement_flags) {
+  if (current_token.newlines) {
+    this.print_newline(false, preserve_statement_flags);
+  } else {
+    this._output.trim(true);
+  }
+
+  this._output.space_before_token = true;
+  this.print_token(current_token);
+  this.print_newline(false, preserve_statement_flags);
+};
+
+Beautifier.prototype.handle_dot = function(current_token) {
+  if (this.start_of_statement(current_token)) ; else {
+    this.handle_whitespace_and_comments(current_token, true);
+  }
+
+  if (reserved_array(this._flags.last_token, special_words)) {
+    this._output.space_before_token = false;
+  } else {
+    // allow preserved newlines before dots in general
+    // force newlines on dots after close paren when break_chained - for bar().baz()
+    this.allow_wrap_or_preserved_newline(current_token,
+      this._flags.last_token.text === ')' && this._options.break_chained_methods);
+  }
+
+  // Only unindent chained method dot if this dot starts a new line.
+  // Otherwise the automatic extra indentation removal will handle the over indent
+  if (this._options.unindent_chained_methods && this._output.just_added_newline()) {
+    this.deindent();
+  }
+
+  this.print_token(current_token);
+};
+
+Beautifier.prototype.handle_unknown = function(current_token, preserve_statement_flags) {
+  this.print_token(current_token);
+
+  if (current_token.text[current_token.text.length - 1] === '\n') {
+    this.print_newline(false, preserve_statement_flags);
+  }
+};
+
+Beautifier.prototype.handle_eof = function(current_token) {
+  // Unwind any open statements
+  while (this._flags.mode === MODE.Statement) {
+    this.restore_mode();
+  }
+  this.handle_whitespace_and_comments(current_token);
+};
+
+var Beautifier_1 = Beautifier;
+
+var beautifier = {
+	Beautifier: Beautifier_1
+};
+
+var Beautifier$1 = beautifier.Beautifier,
+  Options$3 = options$1.Options;
+
+function js_beautify(js_source_text, options) {
+  var beautifier = new Beautifier$1(js_source_text, options);
+  return beautifier.beautify();
+}
+
+var javascript = js_beautify;
+var defaultOptions = function() {
+  return new Options$3();
+};
+javascript.defaultOptions = defaultOptions;
+
+var BaseOptions$1 = options.Options;
+
+function Options$4(options) {
+  BaseOptions$1.call(this, options, 'css');
+
+  this.selector_separator_newline = this._get_boolean('selector_separator_newline', true);
+  this.newline_between_rules = this._get_boolean('newline_between_rules', true);
+  var space_around_selector_separator = this._get_boolean('space_around_selector_separator');
+  this.space_around_combinator = this._get_boolean('space_around_combinator') || space_around_selector_separator;
+
+}
+Options$4.prototype = new BaseOptions$1();
+
+
+
+var Options_1$2 = Options$4;
+
+var options$2 = {
+	Options: Options_1$2
+};
+
+var Options$5 = options$2.Options;
+var Output$2 = output.Output;
+var InputScanner$3 = inputscanner.InputScanner;
+var Directives$2 = directives.Directives;
+
+var directives_core$1 = new Directives$2(/\/\*/, /\*\//);
+
+var lineBreak = /\r\n|[\r\n]/;
+var allLineBreaks = /\r\n|[\r\n]/g;
+
+// tokenizer
+var whitespaceChar = /\s/;
+var whitespacePattern = /(?:\s|\n)+/g;
+var block_comment_pattern = /\/\*(?:[\s\S]*?)((?:\*\/)|$)/g;
+var comment_pattern = /\/\/(?:[^\n\r\u2028\u2029]*)/g;
+
+function Beautifier$2(source_text, options) {
+  this._source_text = source_text || '';
+  // Allow the setting of language/file-type specific options
+  // with inheritance of overall settings
+  this._options = new Options$5(options);
+  this._ch = null;
+  this._input = null;
+
+  // https://developer.mozilla.org/en-US/docs/Web/CSS/At-rule
+  this.NESTED_AT_RULE = {
+    "@page": true,
+    "@font-face": true,
+    "@keyframes": true,
+    // also in CONDITIONAL_GROUP_RULE below
+    "@media": true,
+    "@supports": true,
+    "@document": true
+  };
+  this.CONDITIONAL_GROUP_RULE = {
+    "@media": true,
+    "@supports": true,
+    "@document": true
+  };
+
+}
+
+Beautifier$2.prototype.eatString = function(endChars) {
+  var result = '';
+  this._ch = this._input.next();
+  while (this._ch) {
+    result += this._ch;
+    if (this._ch === "\\") {
+      result += this._input.next();
+    } else if (endChars.indexOf(this._ch) !== -1 || this._ch === "\n") {
+      break;
+    }
+    this._ch = this._input.next();
+  }
+  return result;
+};
+
+// Skips any white space in the source text from the current position.
+// When allowAtLeastOneNewLine is true, will output new lines for each
+// newline character found; if the user has preserve_newlines off, only
+// the first newline will be output
+Beautifier$2.prototype.eatWhitespace = function(allowAtLeastOneNewLine) {
+  var result = whitespaceChar.test(this._input.peek());
+  var isFirstNewLine = true;
+
+  while (whitespaceChar.test(this._input.peek())) {
+    this._ch = this._input.next();
+    if (allowAtLeastOneNewLine && this._ch === '\n') {
+      if (this._options.preserve_newlines || isFirstNewLine) {
+        isFirstNewLine = false;
+        this._output.add_new_line(true);
+      }
+    }
+  }
+  return result;
+};
+
+// Nested pseudo-class if we are insideRule
+// and the next special character found opens
+// a new block
+Beautifier$2.prototype.foundNestedPseudoClass = function() {
+  var openParen = 0;
+  var i = 1;
+  var ch = this._input.peek(i);
+  while (ch) {
+    if (ch === "{") {
+      return true;
+    } else if (ch === '(') {
+      // pseudoclasses can contain ()
+      openParen += 1;
+    } else if (ch === ')') {
+      if (openParen === 0) {
+        return false;
+      }
+      openParen -= 1;
+    } else if (ch === ";" || ch === "}") {
+      return false;
+    }
+    i++;
+    ch = this._input.peek(i);
+  }
+  return false;
+};
+
+Beautifier$2.prototype.print_string = function(output_string) {
+  this._output.set_indent(this._indentLevel);
+  this._output.non_breaking_space = true;
+  this._output.add_token(output_string);
+};
+
+Beautifier$2.prototype.preserveSingleSpace = function(isAfterSpace) {
+  if (isAfterSpace) {
+    this._output.space_before_token = true;
+  }
+};
+
+Beautifier$2.prototype.indent = function() {
+  this._indentLevel++;
+};
+
+Beautifier$2.prototype.outdent = function() {
+  if (this._indentLevel > 0) {
+    this._indentLevel--;
+  }
+};
+
+/*_____________________--------------------_____________________*/
+
+Beautifier$2.prototype.beautify = function() {
+  if (this._options.disabled) {
+    return this._source_text;
+  }
+
+  var source_text = this._source_text;
+  var eol = this._options.eol;
+  if (eol === 'auto') {
+    eol = '\n';
+    if (source_text && lineBreak.test(source_text || '')) {
+      eol = source_text.match(lineBreak)[0];
+    }
+  }
+
+
+  // HACK: newline parsing inconsistent. This brute force normalizes the this._input.
+  source_text = source_text.replace(allLineBreaks, '\n');
+
+  // reset
+  var baseIndentString = source_text.match(/^[\t ]*/)[0];
+
+  this._output = new Output$2(this._options, baseIndentString);
+  this._input = new InputScanner$3(source_text);
+  this._indentLevel = 0;
+  this._nestedLevel = 0;
+
+  this._ch = null;
+  var parenLevel = 0;
+
+  var insideRule = false;
+  // This is the value side of a property value pair (blue in the following ex)
+  // label { content: blue }
+  var insidePropertyValue = false;
+  var enteringConditionalGroup = false;
+  var insideAtExtend = false;
+  var insideAtImport = false;
+  var topCharacter = this._ch;
+  var whitespace;
+  var isAfterSpace;
+  var previous_ch;
+
+  while (true) {
+    whitespace = this._input.read(whitespacePattern);
+    isAfterSpace = whitespace !== '';
+    previous_ch = topCharacter;
+    this._ch = this._input.next();
+    if (this._ch === '\\' && this._input.hasNext()) {
+      this._ch += this._input.next();
+    }
+    topCharacter = this._ch;
+
+    if (!this._ch) {
+      break;
+    } else if (this._ch === '/' && this._input.peek() === '*') {
+      // /* css comment */
+      // Always start block comments on a new line.
+      // This handles scenarios where a block comment immediately
+      // follows a property definition on the same line or where
+      // minified code is being beautified.
+      this._output.add_new_line();
+      this._input.back();
+
+      var comment = this._input.read(block_comment_pattern);
+
+      // Handle ignore directive
+      var directives = directives_core$1.get_directives(comment);
+      if (directives && directives.ignore === 'start') {
+        comment += directives_core$1.readIgnored(this._input);
+      }
+
+      this.print_string(comment);
+
+      // Ensures any new lines following the comment are preserved
+      this.eatWhitespace(true);
+
+      // Block comments are followed by a new line so they don't
+      // share a line with other properties
+      this._output.add_new_line();
+    } else if (this._ch === '/' && this._input.peek() === '/') {
+      // // single line comment
+      // Preserves the space before a comment
+      // on the same line as a rule
+      this._output.space_before_token = true;
+      this._input.back();
+      this.print_string(this._input.read(comment_pattern));
+
+      // Ensures any new lines following the comment are preserved
+      this.eatWhitespace(true);
+    } else if (this._ch === '@') {
+      this.preserveSingleSpace(isAfterSpace);
+
+      // deal with less propery mixins @{...}
+      if (this._input.peek() === '{') {
+        this.print_string(this._ch + this.eatString('}'));
+      } else {
+        this.print_string(this._ch);
+
+        // strip trailing space, if present, for hash property checks
+        var variableOrRule = this._input.peekUntilAfter(/[: ,;{}()[\]\/='"]/g);
+
+        if (variableOrRule.match(/[ :]$/)) {
+          // we have a variable or pseudo-class, add it and insert one space before continuing
+          variableOrRule = this.eatString(": ").replace(/\s$/, '');
+          this.print_string(variableOrRule);
+          this._output.space_before_token = true;
+        }
+
+        variableOrRule = variableOrRule.replace(/\s$/, '');
+
+        if (variableOrRule === 'extend') {
+          insideAtExtend = true;
+        } else if (variableOrRule === 'import') {
+          insideAtImport = true;
+        }
+
+        // might be a nesting at-rule
+        if (variableOrRule in this.NESTED_AT_RULE) {
+          this._nestedLevel += 1;
+          if (variableOrRule in this.CONDITIONAL_GROUP_RULE) {
+            enteringConditionalGroup = true;
+          }
+          // might be less variable
+        } else if (!insideRule && parenLevel === 0 && variableOrRule.indexOf(':') !== -1) {
+          insidePropertyValue = true;
+          this.indent();
+        }
+      }
+    } else if (this._ch === '#' && this._input.peek() === '{') {
+      this.preserveSingleSpace(isAfterSpace);
+      this.print_string(this._ch + this.eatString('}'));
+    } else if (this._ch === '{') {
+      if (insidePropertyValue) {
+        insidePropertyValue = false;
+        this.outdent();
+      }
+      this.indent();
+      this._output.space_before_token = true;
+      this.print_string(this._ch);
+
+      // when entering conditional groups, only rulesets are allowed
+      if (enteringConditionalGroup) {
+        enteringConditionalGroup = false;
+        insideRule = (this._indentLevel > this._nestedLevel);
+      } else {
+        // otherwise, declarations are also allowed
+        insideRule = (this._indentLevel >= this._nestedLevel);
+      }
+      if (this._options.newline_between_rules && insideRule) {
+        if (this._output.previous_line && this._output.previous_line.item(-1) !== '{') {
+          this._output.ensure_empty_line_above('/', ',');
+        }
+      }
+      this.eatWhitespace(true);
+      this._output.add_new_line();
+    } else if (this._ch === '}') {
+      this.outdent();
+      this._output.add_new_line();
+      if (previous_ch === '{') {
+        this._output.trim(true);
+      }
+      insideAtImport = false;
+      insideAtExtend = false;
+      if (insidePropertyValue) {
+        this.outdent();
+        insidePropertyValue = false;
+      }
+      this.print_string(this._ch);
+      insideRule = false;
+      if (this._nestedLevel) {
+        this._nestedLevel--;
+      }
+
+      this.eatWhitespace(true);
+      this._output.add_new_line();
+
+      if (this._options.newline_between_rules && !this._output.just_added_blankline()) {
+        if (this._input.peek() !== '}') {
+          this._output.add_new_line(true);
+        }
+      }
+    } else if (this._ch === ":") {
+      if ((insideRule || enteringConditionalGroup) && !(this._input.lookBack("&") || this.foundNestedPseudoClass()) && !this._input.lookBack("(") && !insideAtExtend && parenLevel === 0) {
+        // 'property: value' delimiter
+        // which could be in a conditional group query
+        this.print_string(':');
+        if (!insidePropertyValue) {
+          insidePropertyValue = true;
+          this._output.space_before_token = true;
+          this.eatWhitespace(true);
+          this.indent();
+        }
+      } else {
+        // sass/less parent reference don't use a space
+        // sass nested pseudo-class don't use a space
+
+        // preserve space before pseudoclasses/pseudoelements, as it means "in any child"
+        if (this._input.lookBack(" ")) {
+          this._output.space_before_token = true;
+        }
+        if (this._input.peek() === ":") {
+          // pseudo-element
+          this._ch = this._input.next();
+          this.print_string("::");
+        } else {
+          // pseudo-class
+          this.print_string(':');
+        }
+      }
+    } else if (this._ch === '"' || this._ch === '\'') {
+      this.preserveSingleSpace(isAfterSpace);
+      this.print_string(this._ch + this.eatString(this._ch));
+      this.eatWhitespace(true);
+    } else if (this._ch === ';') {
+      if (parenLevel === 0) {
+        if (insidePropertyValue) {
+          this.outdent();
+          insidePropertyValue = false;
+        }
+        insideAtExtend = false;
+        insideAtImport = false;
+        this.print_string(this._ch);
+        this.eatWhitespace(true);
+
+        // This maintains single line comments on the same
+        // line. Block comments are also affected, but
+        // a new line is always output before one inside
+        // that section
+        if (this._input.peek() !== '/') {
+          this._output.add_new_line();
+        }
+      } else {
+        this.print_string(this._ch);
+        this.eatWhitespace(true);
+        this._output.space_before_token = true;
+      }
+    } else if (this._ch === '(') { // may be a url
+      if (this._input.lookBack("url")) {
+        this.print_string(this._ch);
+        this.eatWhitespace();
+        parenLevel++;
+        this.indent();
+        this._ch = this._input.next();
+        if (this._ch === ')' || this._ch === '"' || this._ch === '\'') {
+          this._input.back();
+        } else if (this._ch) {
+          this.print_string(this._ch + this.eatString(')'));
+          if (parenLevel) {
+            parenLevel--;
+            this.outdent();
+          }
+        }
+      } else {
+        this.preserveSingleSpace(isAfterSpace);
+        this.print_string(this._ch);
+        this.eatWhitespace();
+        parenLevel++;
+        this.indent();
+      }
+    } else if (this._ch === ')') {
+      if (parenLevel) {
+        parenLevel--;
+        this.outdent();
+      }
+      this.print_string(this._ch);
+    } else if (this._ch === ',') {
+      this.print_string(this._ch);
+      this.eatWhitespace(true);
+      if (this._options.selector_separator_newline && !insidePropertyValue && parenLevel === 0 && !insideAtImport) {
+        this._output.add_new_line();
+      } else {
+        this._output.space_before_token = true;
+      }
+    } else if ((this._ch === '>' || this._ch === '+' || this._ch === '~') && !insidePropertyValue && parenLevel === 0) {
+      //handle combinator spacing
+      if (this._options.space_around_combinator) {
+        this._output.space_before_token = true;
+        this.print_string(this._ch);
+        this._output.space_before_token = true;
+      } else {
+        this.print_string(this._ch);
+        this.eatWhitespace();
+        // squash extra whitespace
+        if (this._ch && whitespaceChar.test(this._ch)) {
+          this._ch = '';
+        }
+      }
+    } else if (this._ch === ']') {
+      this.print_string(this._ch);
+    } else if (this._ch === '[') {
+      this.preserveSingleSpace(isAfterSpace);
+      this.print_string(this._ch);
+    } else if (this._ch === '=') { // no whitespace before or after
+      this.eatWhitespace();
+      this.print_string('=');
+      if (whitespaceChar.test(this._ch)) {
+        this._ch = '';
+      }
+    } else if (this._ch === '!' && !this._input.lookBack("\\")) { // !important
+      this.print_string(' ');
+      this.print_string(this._ch);
+    } else {
+      this.preserveSingleSpace(isAfterSpace);
+      this.print_string(this._ch);
+    }
+  }
+
+  var sweetCode = this._output.get_code(eol);
+
+  return sweetCode;
+};
+
+var Beautifier_1$1 = Beautifier$2;
+
+var beautifier$1 = {
+	Beautifier: Beautifier_1$1
+};
+
+var Beautifier$3 = beautifier$1.Beautifier,
+  Options$6 = options$2.Options;
+
+function css_beautify(source_text, options) {
+  var beautifier = new Beautifier$3(source_text, options);
+  return beautifier.beautify();
+}
+
+var css = css_beautify;
+var defaultOptions$1 = function() {
+  return new Options$6();
+};
+css.defaultOptions = defaultOptions$1;
+
+var BaseOptions$2 = options.Options;
+
+function Options$7(options) {
+  BaseOptions$2.call(this, options, 'html');
+  if (this.templating.length === 1 && this.templating[0] === 'auto') {
+    this.templating = ['django', 'erb', 'handlebars', 'php'];
+  }
+
+  this.indent_inner_html = this._get_boolean('indent_inner_html');
+  this.indent_body_inner_html = this._get_boolean('indent_body_inner_html', true);
+  this.indent_head_inner_html = this._get_boolean('indent_head_inner_html', true);
+
+  this.indent_handlebars = this._get_boolean('indent_handlebars', true);
+  this.wrap_attributes = this._get_selection('wrap_attributes',
+    ['auto', 'force', 'force-aligned', 'force-expand-multiline', 'aligned-multiple', 'preserve', 'preserve-aligned']);
+  this.wrap_attributes_indent_size = this._get_number('wrap_attributes_indent_size', this.indent_size);
+  this.extra_liners = this._get_array('extra_liners', ['head', 'body', '/html']);
+
+  // Block vs inline elements
+  // https://developer.mozilla.org/en-US/docs/Web/HTML/Block-level_elements
+  // https://developer.mozilla.org/en-US/docs/Web/HTML/Inline_elements
+  // https://www.w3.org/TR/html5/dom.html#phrasing-content
+  this.inline = this._get_array('inline', [
+    'a', 'abbr', 'area', 'audio', 'b', 'bdi', 'bdo', 'br', 'button', 'canvas', 'cite',
+    'code', 'data', 'datalist', 'del', 'dfn', 'em', 'embed', 'i', 'iframe', 'img',
+    'input', 'ins', 'kbd', 'keygen', 'label', 'map', 'mark', 'math', 'meter', 'noscript',
+    'object', 'output', 'progress', 'q', 'ruby', 's', 'samp', /* 'script', */ 'select', 'small',
+    'span', 'strong', 'sub', 'sup', 'svg', 'template', 'textarea', 'time', 'u', 'var',
+    'video', 'wbr', 'text',
+    // obsolete inline tags
+    'acronym', 'big', 'strike', 'tt'
+  ]);
+  this.void_elements = this._get_array('void_elements', [
+    // HTLM void elements - aka self-closing tags - aka singletons
+    // https://www.w3.org/html/wg/drafts/html/master/syntax.html#void-elements
+    'area', 'base', 'br', 'col', 'embed', 'hr', 'img', 'input', 'keygen',
+    'link', 'menuitem', 'meta', 'param', 'source', 'track', 'wbr',
+    // NOTE: Optional tags are too complex for a simple list
+    // they are hard coded in _do_optional_end_element
+
+    // Doctype and xml elements
+    '!doctype', '?xml',
+
+    // obsolete tags
+    // basefont: https://www.computerhope.com/jargon/h/html-basefont-tag.htm
+    // isndex: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/isindex
+    'basefont', 'isindex'
+  ]);
+  this.unformatted = this._get_array('unformatted', []);
+  this.content_unformatted = this._get_array('content_unformatted', [
+    'pre', 'textarea'
+  ]);
+  this.unformatted_content_delimiter = this._get_characters('unformatted_content_delimiter');
+  this.indent_scripts = this._get_selection('indent_scripts', ['normal', 'keep', 'separate']);
+
+}
+Options$7.prototype = new BaseOptions$2();
+
+
+
+var Options_1$3 = Options$7;
+
+var options$3 = {
+	Options: Options_1$3
+};
+
+var BaseTokenizer$1 = tokenizer.Tokenizer;
+var BASETOKEN$1 = tokenizer.TOKEN;
+var Directives$3 = directives.Directives;
+var TemplatablePattern$2 = templatablepattern.TemplatablePattern;
+var Pattern$4 = pattern.Pattern;
+
+var TOKEN$3 = {
+  TAG_OPEN: 'TK_TAG_OPEN',
+  TAG_CLOSE: 'TK_TAG_CLOSE',
+  ATTRIBUTE: 'TK_ATTRIBUTE',
+  EQUALS: 'TK_EQUALS',
+  VALUE: 'TK_VALUE',
+  COMMENT: 'TK_COMMENT',
+  TEXT: 'TK_TEXT',
+  UNKNOWN: 'TK_UNKNOWN',
+  START: BASETOKEN$1.START,
+  RAW: BASETOKEN$1.RAW,
+  EOF: BASETOKEN$1.EOF
+};
+
+var directives_core$2 = new Directives$3(/<\!--/, /-->/);
+
+var Tokenizer$3 = function(input_string, options) {
+  BaseTokenizer$1.call(this, input_string, options);
+  this._current_tag_name = '';
+
+  // Words end at whitespace or when a tag starts
+  // if we are indenting handlebars, they are considered tags
+  var templatable_reader = new TemplatablePattern$2(this._input).read_options(this._options);
+  var pattern_reader = new Pattern$4(this._input);
+
+  this.__patterns = {
+    word: templatable_reader.until(/[\n\r\t <]/),
+    single_quote: templatable_reader.until_after(/'/),
+    double_quote: templatable_reader.until_after(/"/),
+    attribute: templatable_reader.until(/[\n\r\t =\/>]/),
+    element_name: templatable_reader.until(/[\n\r\t >\/]/),
+
+    handlebars_comment: pattern_reader.starting_with(/{{!--/).until_after(/--}}/),
+    handlebars: pattern_reader.starting_with(/{{/).until_after(/}}/),
+    handlebars_open: pattern_reader.until(/[\n\r\t }]/),
+    handlebars_raw_close: pattern_reader.until(/}}/),
+    comment: pattern_reader.starting_with(/<!--/).until_after(/-->/),
+    cdata: pattern_reader.starting_with(/<!\[cdata\[/).until_after(/]]>/),
+    // https://en.wikipedia.org/wiki/Conditional_comment
+    conditional_comment: pattern_reader.starting_with(/<!\[/).until_after(/]>/),
+    processing: pattern_reader.starting_with(/<\?/).until_after(/\?>/)
+  };
+
+  if (this._options.indent_handlebars) {
+    this.__patterns.word = this.__patterns.word.exclude('handlebars');
+  }
+
+  this._unformatted_content_delimiter = null;
+
+  if (this._options.unformatted_content_delimiter) {
+    var literal_regexp = this._input.get_literal_regexp(this._options.unformatted_content_delimiter);
+    this.__patterns.unformatted_content_delimiter =
+      pattern_reader.matching(literal_regexp)
+      .until_after(literal_regexp);
+  }
+};
+Tokenizer$3.prototype = new BaseTokenizer$1();
+
+Tokenizer$3.prototype._is_comment = function(current_token) { // jshint unused:false
+  return false; //current_token.type === TOKEN.COMMENT || current_token.type === TOKEN.UNKNOWN;
+};
+
+Tokenizer$3.prototype._is_opening = function(current_token) {
+  return current_token.type === TOKEN$3.TAG_OPEN;
+};
+
+Tokenizer$3.prototype._is_closing = function(current_token, open_token) {
+  return current_token.type === TOKEN$3.TAG_CLOSE &&
+    (open_token && (
+      ((current_token.text === '>' || current_token.text === '/>') && open_token.text[0] === '<') ||
+      (current_token.text === '}}' && open_token.text[0] === '{' && open_token.text[1] === '{')));
+};
+
+Tokenizer$3.prototype._reset = function() {
+  this._current_tag_name = '';
+};
+
+Tokenizer$3.prototype._get_next_token = function(previous_token, open_token) { // jshint unused:false
+  var token = null;
+  this._readWhitespace();
+  var c = this._input.peek();
+
+  if (c === null) {
+    return this._create_token(TOKEN$3.EOF, '');
+  }
+
+  token = token || this._read_open_handlebars(c, open_token);
+  token = token || this._read_attribute(c, previous_token, open_token);
+  token = token || this._read_raw_content(c, previous_token, open_token);
+  token = token || this._read_close(c, open_token);
+  token = token || this._read_content_word(c);
+  token = token || this._read_comment(c);
+  token = token || this._read_open(c, open_token);
+  token = token || this._create_token(TOKEN$3.UNKNOWN, this._input.next());
+
+  return token;
+};
+
+Tokenizer$3.prototype._read_comment = function(c) { // jshint unused:false
+  var token = null;
+  var resulting_string = null;
+  var directives = null;
+
+  if (c === '<') {
+    var peek1 = this._input.peek(1);
+    //if we're in a comment, do something special
+    // We treat all comments as literals, even more than preformatted tags
+    // we just look for the appropriate close tag
+    if (c === '<' && (peek1 === '!' || peek1 === '?')) {
+      resulting_string = this.__patterns.comment.read();
+
+      // only process directive on html comments
+      if (resulting_string) {
+        directives = directives_core$2.get_directives(resulting_string);
+        if (directives && directives.ignore === 'start') {
+          resulting_string += directives_core$2.readIgnored(this._input);
+        }
+      } else {
+        resulting_string = this.__patterns.cdata.read();
+        resulting_string = resulting_string || this.__patterns.conditional_comment.read();
+        resulting_string = resulting_string || this.__patterns.processing.read();
+      }
+    }
+
+    if (resulting_string) {
+      token = this._create_token(TOKEN$3.COMMENT, resulting_string);
+      token.directives = directives;
+    }
+  }
+
+  return token;
+};
+
+Tokenizer$3.prototype._read_open = function(c, open_token) {
+  var resulting_string = null;
+  var token = null;
+  if (!open_token) {
+    if (c === '<') {
+
+      resulting_string = this._input.next();
+      if (this._input.peek() === '/') {
+        resulting_string += this._input.next();
+      }
+      resulting_string += this.__patterns.element_name.read();
+      token = this._create_token(TOKEN$3.TAG_OPEN, resulting_string);
+    }
+  }
+  return token;
+};
+
+Tokenizer$3.prototype._read_open_handlebars = function(c, open_token) {
+  var resulting_string = null;
+  var token = null;
+  if (!open_token) {
+    if (this._options.indent_handlebars && c === '{' && this._input.peek(1) === '{') {
+      if (this._input.peek(2) === '!') {
+        resulting_string = this.__patterns.handlebars_comment.read();
+        resulting_string = resulting_string || this.__patterns.handlebars.read();
+        token = this._create_token(TOKEN$3.COMMENT, resulting_string);
+      } else {
+        resulting_string = this.__patterns.handlebars_open.read();
+        token = this._create_token(TOKEN$3.TAG_OPEN, resulting_string);
+      }
+    }
+  }
+  return token;
+};
+
+
+Tokenizer$3.prototype._read_close = function(c, open_token) {
+  var resulting_string = null;
+  var token = null;
+  if (open_token) {
+    if (open_token.text[0] === '<' && (c === '>' || (c === '/' && this._input.peek(1) === '>'))) {
+      resulting_string = this._input.next();
+      if (c === '/') { //  for close tag "/>"
+        resulting_string += this._input.next();
+      }
+      token = this._create_token(TOKEN$3.TAG_CLOSE, resulting_string);
+    } else if (open_token.text[0] === '{' && c === '}' && this._input.peek(1) === '}') {
+      this._input.next();
+      this._input.next();
+      token = this._create_token(TOKEN$3.TAG_CLOSE, '}}');
+    }
+  }
+
+  return token;
+};
+
+Tokenizer$3.prototype._read_attribute = function(c, previous_token, open_token) {
+  var token = null;
+  var resulting_string = '';
+  if (open_token && open_token.text[0] === '<') {
+
+    if (c === '=') {
+      token = this._create_token(TOKEN$3.EQUALS, this._input.next());
+    } else if (c === '"' || c === "'") {
+      var content = this._input.next();
+      if (c === '"') {
+        content += this.__patterns.double_quote.read();
+      } else {
+        content += this.__patterns.single_quote.read();
+      }
+      token = this._create_token(TOKEN$3.VALUE, content);
+    } else {
+      resulting_string = this.__patterns.attribute.read();
+
+      if (resulting_string) {
+        if (previous_token.type === TOKEN$3.EQUALS) {
+          token = this._create_token(TOKEN$3.VALUE, resulting_string);
+        } else {
+          token = this._create_token(TOKEN$3.ATTRIBUTE, resulting_string);
+        }
+      }
+    }
+  }
+  return token;
+};
+
+Tokenizer$3.prototype._is_content_unformatted = function(tag_name) {
+  // void_elements have no content and so cannot have unformatted content
+  // script and style tags should always be read as unformatted content
+  // finally content_unformatted and unformatted element contents are unformatted
+  return this._options.void_elements.indexOf(tag_name) === -1 &&
+    (this._options.content_unformatted.indexOf(tag_name) !== -1 ||
+      this._options.unformatted.indexOf(tag_name) !== -1);
+};
+
+
+Tokenizer$3.prototype._read_raw_content = function(c, previous_token, open_token) { // jshint unused:false
+  var resulting_string = '';
+  if (open_token && open_token.text[0] === '{') {
+    resulting_string = this.__patterns.handlebars_raw_close.read();
+  } else if (previous_token.type === TOKEN$3.TAG_CLOSE && (previous_token.opened.text[0] === '<')) {
+    var tag_name = previous_token.opened.text.substr(1).toLowerCase();
+    if (tag_name === 'script' || tag_name === 'style') {
+      // Script and style tags are allowed to have comments wrapping their content
+      // or just have regular content.
+      var token = this._read_comment(c);
+      if (token) {
+        token.type = TOKEN$3.TEXT;
+        return token;
+      }
+      resulting_string = this._input.readUntil(new RegExp('</' + tag_name + '[\\n\\r\\t ]*?>', 'ig'));
+    } else if (this._is_content_unformatted(tag_name)) {
+      resulting_string = this._input.readUntil(new RegExp('</' + tag_name + '[\\n\\r\\t ]*?>', 'ig'));
+    }
+  }
+
+  if (resulting_string) {
+    return this._create_token(TOKEN$3.TEXT, resulting_string);
+  }
+
+  return null;
+};
+
+Tokenizer$3.prototype._read_content_word = function(c) {
+  var resulting_string = '';
+  if (this._options.unformatted_content_delimiter) {
+    if (c === this._options.unformatted_content_delimiter[0]) {
+      resulting_string = this.__patterns.unformatted_content_delimiter.read();
+    }
+  }
+
+  if (!resulting_string) {
+    resulting_string = this.__patterns.word.read();
+  }
+  if (resulting_string) {
+    return this._create_token(TOKEN$3.TEXT, resulting_string);
+  }
+};
+
+var Tokenizer_1$2 = Tokenizer$3;
+var TOKEN_1$2 = TOKEN$3;
+
+var tokenizer$2 = {
+	Tokenizer: Tokenizer_1$2,
+	TOKEN: TOKEN_1$2
+};
+
+var Options$8 = options$3.Options;
+var Output$3 = output.Output;
+var Tokenizer$4 = tokenizer$2.Tokenizer;
+var TOKEN$4 = tokenizer$2.TOKEN;
+
+var lineBreak$1 = /\r\n|[\r\n]/;
+var allLineBreaks$1 = /\r\n|[\r\n]/g;
+
+var Printer = function(options, base_indent_string) { //handles input/output and some other printing functions
+
+  this.indent_level = 0;
+  this.alignment_size = 0;
+  this.max_preserve_newlines = options.max_preserve_newlines;
+  this.preserve_newlines = options.preserve_newlines;
+
+  this._output = new Output$3(options, base_indent_string);
+
+};
+
+Printer.prototype.current_line_has_match = function(pattern) {
+  return this._output.current_line.has_match(pattern);
+};
+
+Printer.prototype.set_space_before_token = function(value, non_breaking) {
+  this._output.space_before_token = value;
+  this._output.non_breaking_space = non_breaking;
+};
+
+Printer.prototype.set_wrap_point = function() {
+  this._output.set_indent(this.indent_level, this.alignment_size);
+  this._output.set_wrap_point();
+};
+
+
+Printer.prototype.add_raw_token = function(token) {
+  this._output.add_raw_token(token);
+};
+
+Printer.prototype.print_preserved_newlines = function(raw_token) {
+  var newlines = 0;
+  if (raw_token.type !== TOKEN$4.TEXT && raw_token.previous.type !== TOKEN$4.TEXT) {
+    newlines = raw_token.newlines ? 1 : 0;
+  }
+
+  if (this.preserve_newlines) {
+    newlines = raw_token.newlines < this.max_preserve_newlines + 1 ? raw_token.newlines : this.max_preserve_newlines + 1;
+  }
+  for (var n = 0; n < newlines; n++) {
+    this.print_newline(n > 0);
+  }
+
+  return newlines !== 0;
+};
+
+Printer.prototype.traverse_whitespace = function(raw_token) {
+  if (raw_token.whitespace_before || raw_token.newlines) {
+    if (!this.print_preserved_newlines(raw_token)) {
+      this._output.space_before_token = true;
+    }
+    return true;
+  }
+  return false;
+};
+
+Printer.prototype.previous_token_wrapped = function() {
+  return this._output.previous_token_wrapped;
+};
+
+Printer.prototype.print_newline = function(force) {
+  this._output.add_new_line(force);
+};
+
+Printer.prototype.print_token = function(token) {
+  if (token.text) {
+    this._output.set_indent(this.indent_level, this.alignment_size);
+    this._output.add_token(token.text);
+  }
+};
+
+Printer.prototype.indent = function() {
+  this.indent_level++;
+};
+
+Printer.prototype.get_full_indent = function(level) {
+  level = this.indent_level + (level || 0);
+  if (level < 1) {
+    return '';
+  }
+
+  return this._output.get_indent_string(level);
+};
+
+var get_type_attribute = function(start_token) {
+  var result = null;
+  var raw_token = start_token.next;
+
+  // Search attributes for a type attribute
+  while (raw_token.type !== TOKEN$4.EOF && start_token.closed !== raw_token) {
+    if (raw_token.type === TOKEN$4.ATTRIBUTE && raw_token.text === 'type') {
+      if (raw_token.next && raw_token.next.type === TOKEN$4.EQUALS &&
+        raw_token.next.next && raw_token.next.next.type === TOKEN$4.VALUE) {
+        result = raw_token.next.next.text;
+      }
+      break;
+    }
+    raw_token = raw_token.next;
+  }
+
+  return result;
+};
+
+var get_custom_beautifier_name = function(tag_check, raw_token) {
+  var typeAttribute = null;
+  var result = null;
+
+  if (!raw_token.closed) {
+    return null;
+  }
+
+  if (tag_check === 'script') {
+    typeAttribute = 'text/javascript';
+  } else if (tag_check === 'style') {
+    typeAttribute = 'text/css';
+  }
+
+  typeAttribute = get_type_attribute(raw_token) || typeAttribute;
+
+  // For script and style tags that have a type attribute, only enable custom beautifiers for matching values
+  // For those without a type attribute use default;
+  if (typeAttribute.search('text/css') > -1) {
+    result = 'css';
+  } else if (typeAttribute.search(/(text|application|dojo)\/(x-)?(javascript|ecmascript|jscript|livescript|(ld\+)?json|method|aspect)/) > -1) {
+    result = 'javascript';
+  } else if (typeAttribute.search(/(text|application|dojo)\/(x-)?(html)/) > -1) {
+    result = 'html';
+  } else if (typeAttribute.search(/test\/null/) > -1) {
+    // Test only mime-type for testing the beautifier when null is passed as beautifing function
+    result = 'null';
+  }
+
+  return result;
+};
+
+function in_array$2(what, arr) {
+  return arr.indexOf(what) !== -1;
+}
+
+function TagFrame(parent, parser_token, indent_level) {
+  this.parent = parent || null;
+  this.tag = parser_token ? parser_token.tag_name : '';
+  this.indent_level = indent_level || 0;
+  this.parser_token = parser_token || null;
+}
+
+function TagStack(printer) {
+  this._printer = printer;
+  this._current_frame = null;
+}
+
+TagStack.prototype.get_parser_token = function() {
+  return this._current_frame ? this._current_frame.parser_token : null;
+};
+
+TagStack.prototype.record_tag = function(parser_token) { //function to record a tag and its parent in this.tags Object
+  var new_frame = new TagFrame(this._current_frame, parser_token, this._printer.indent_level);
+  this._current_frame = new_frame;
+};
+
+TagStack.prototype._try_pop_frame = function(frame) { //function to retrieve the opening tag to the corresponding closer
+  var parser_token = null;
+
+  if (frame) {
+    parser_token = frame.parser_token;
+    this._printer.indent_level = frame.indent_level;
+    this._current_frame = frame.parent;
+  }
+
+  return parser_token;
+};
+
+TagStack.prototype._get_frame = function(tag_list, stop_list) { //function to retrieve the opening tag to the corresponding closer
+  var frame = this._current_frame;
+
+  while (frame) { //till we reach '' (the initial value);
+    if (tag_list.indexOf(frame.tag) !== -1) { //if this is it use it
+      break;
+    } else if (stop_list && stop_list.indexOf(frame.tag) !== -1) {
+      frame = null;
+      break;
+    }
+    frame = frame.parent;
+  }
+
+  return frame;
+};
+
+TagStack.prototype.try_pop = function(tag, stop_list) { //function to retrieve the opening tag to the corresponding closer
+  var frame = this._get_frame([tag], stop_list);
+  return this._try_pop_frame(frame);
+};
+
+TagStack.prototype.indent_to_tag = function(tag_list) {
+  var frame = this._get_frame(tag_list);
+  if (frame) {
+    this._printer.indent_level = frame.indent_level;
+  }
+};
+
+function Beautifier$4(source_text, options, js_beautify, css_beautify) {
+  //Wrapper function to invoke all the necessary constructors and deal with the output.
+  this._source_text = source_text || '';
+  options = options || {};
+  this._js_beautify = js_beautify;
+  this._css_beautify = css_beautify;
+  this._tag_stack = null;
+
+  // Allow the setting of language/file-type specific options
+  // with inheritance of overall settings
+  var optionHtml = new Options$8(options, 'html');
+
+  this._options = optionHtml;
+
+  this._is_wrap_attributes_force = this._options.wrap_attributes.substr(0, 'force'.length) === 'force';
+  this._is_wrap_attributes_force_expand_multiline = (this._options.wrap_attributes === 'force-expand-multiline');
+  this._is_wrap_attributes_force_aligned = (this._options.wrap_attributes === 'force-aligned');
+  this._is_wrap_attributes_aligned_multiple = (this._options.wrap_attributes === 'aligned-multiple');
+  this._is_wrap_attributes_preserve = this._options.wrap_attributes.substr(0, 'preserve'.length) === 'preserve';
+  this._is_wrap_attributes_preserve_aligned = (this._options.wrap_attributes === 'preserve-aligned');
+}
+
+Beautifier$4.prototype.beautify = function() {
+
+  // if disabled, return the input unchanged.
+  if (this._options.disabled) {
+    return this._source_text;
+  }
+
+  var source_text = this._source_text;
+  var eol = this._options.eol;
+  if (this._options.eol === 'auto') {
+    eol = '\n';
+    if (source_text && lineBreak$1.test(source_text)) {
+      eol = source_text.match(lineBreak$1)[0];
+    }
+  }
+
+  // HACK: newline parsing inconsistent. This brute force normalizes the input.
+  source_text = source_text.replace(allLineBreaks$1, '\n');
+
+  var baseIndentString = source_text.match(/^[\t ]*/)[0];
+
+  var last_token = {
+    text: '',
+    type: ''
+  };
+
+  var last_tag_token = new TagOpenParserToken();
+
+  var printer = new Printer(this._options, baseIndentString);
+  var tokens = new Tokenizer$4(source_text, this._options).tokenize();
+
+  this._tag_stack = new TagStack(printer);
+
+  var parser_token = null;
+  var raw_token = tokens.next();
+  while (raw_token.type !== TOKEN$4.EOF) {
+
+    if (raw_token.type === TOKEN$4.TAG_OPEN || raw_token.type === TOKEN$4.COMMENT) {
+      parser_token = this._handle_tag_open(printer, raw_token, last_tag_token, last_token);
+      last_tag_token = parser_token;
+    } else if ((raw_token.type === TOKEN$4.ATTRIBUTE || raw_token.type === TOKEN$4.EQUALS || raw_token.type === TOKEN$4.VALUE) ||
+      (raw_token.type === TOKEN$4.TEXT && !last_tag_token.tag_complete)) {
+      parser_token = this._handle_inside_tag(printer, raw_token, last_tag_token, tokens);
+    } else if (raw_token.type === TOKEN$4.TAG_CLOSE) {
+      parser_token = this._handle_tag_close(printer, raw_token, last_tag_token);
+    } else if (raw_token.type === TOKEN$4.TEXT) {
+      parser_token = this._handle_text(printer, raw_token, last_tag_token);
+    } else {
+      // This should never happen, but if it does. Print the raw token
+      printer.add_raw_token(raw_token);
+    }
+
+    last_token = parser_token;
+
+    raw_token = tokens.next();
+  }
+  var sweet_code = printer._output.get_code(eol);
+
+  return sweet_code;
+};
+
+Beautifier$4.prototype._handle_tag_close = function(printer, raw_token, last_tag_token) {
+  var parser_token = {
+    text: raw_token.text,
+    type: raw_token.type
+  };
+  printer.alignment_size = 0;
+  last_tag_token.tag_complete = true;
+
+  printer.set_space_before_token(raw_token.newlines || raw_token.whitespace_before !== '', true);
+  if (last_tag_token.is_unformatted) {
+    printer.add_raw_token(raw_token);
+  } else {
+    if (last_tag_token.tag_start_char === '<') {
+      printer.set_space_before_token(raw_token.text[0] === '/', true); // space before />, no space before >
+      if (this._is_wrap_attributes_force_expand_multiline && last_tag_token.has_wrapped_attrs) {
+        printer.print_newline(false);
+      }
+    }
+    printer.print_token(raw_token);
+
+  }
+
+  if (last_tag_token.indent_content &&
+    !(last_tag_token.is_unformatted || last_tag_token.is_content_unformatted)) {
+    printer.indent();
+
+    // only indent once per opened tag
+    last_tag_token.indent_content = false;
+  }
+
+  if (!last_tag_token.is_inline_element &&
+    !(last_tag_token.is_unformatted || last_tag_token.is_content_unformatted)) {
+    printer.set_wrap_point();
+  }
+
+  return parser_token;
+};
+
+Beautifier$4.prototype._handle_inside_tag = function(printer, raw_token, last_tag_token, tokens) {
+  var wrapped = last_tag_token.has_wrapped_attrs;
+  var parser_token = {
+    text: raw_token.text,
+    type: raw_token.type
+  };
+
+  printer.set_space_before_token(raw_token.newlines || raw_token.whitespace_before !== '', true);
+  if (last_tag_token.is_unformatted) {
+    printer.add_raw_token(raw_token);
+  } else if (last_tag_token.tag_start_char === '{' && raw_token.type === TOKEN$4.TEXT) {
+    // For the insides of handlebars allow newlines or a single space between open and contents
+    if (printer.print_preserved_newlines(raw_token)) {
+      raw_token.newlines = 0;
+      printer.add_raw_token(raw_token);
+    } else {
+      printer.print_token(raw_token);
+    }
+  } else {
+    if (raw_token.type === TOKEN$4.ATTRIBUTE) {
+      printer.set_space_before_token(true);
+      last_tag_token.attr_count += 1;
+    } else if (raw_token.type === TOKEN$4.EQUALS) { //no space before =
+      printer.set_space_before_token(false);
+    } else if (raw_token.type === TOKEN$4.VALUE && raw_token.previous.type === TOKEN$4.EQUALS) { //no space before value
+      printer.set_space_before_token(false);
+    }
+
+    if (raw_token.type === TOKEN$4.ATTRIBUTE && last_tag_token.tag_start_char === '<') {
+      if (this._is_wrap_attributes_preserve || this._is_wrap_attributes_preserve_aligned) {
+        printer.traverse_whitespace(raw_token);
+        wrapped = wrapped || raw_token.newlines !== 0;
+      }
+
+
+      if (this._is_wrap_attributes_force) {
+        var force_attr_wrap = last_tag_token.attr_count > 1;
+        if (this._is_wrap_attributes_force_expand_multiline && last_tag_token.attr_count === 1) {
+          var is_only_attribute = true;
+          var peek_index = 0;
+          var peek_token;
+          do {
+            peek_token = tokens.peek(peek_index);
+            if (peek_token.type === TOKEN$4.ATTRIBUTE) {
+              is_only_attribute = false;
+              break;
+            }
+            peek_index += 1;
+          } while (peek_index < 4 && peek_token.type !== TOKEN$4.EOF && peek_token.type !== TOKEN$4.TAG_CLOSE);
+
+          force_attr_wrap = !is_only_attribute;
+        }
+
+        if (force_attr_wrap) {
+          printer.print_newline(false);
+          wrapped = true;
+        }
+      }
+    }
+    printer.print_token(raw_token);
+    wrapped = wrapped || printer.previous_token_wrapped();
+    last_tag_token.has_wrapped_attrs = wrapped;
+  }
+  return parser_token;
+};
+
+Beautifier$4.prototype._handle_text = function(printer, raw_token, last_tag_token) {
+  var parser_token = {
+    text: raw_token.text,
+    type: 'TK_CONTENT'
+  };
+  if (last_tag_token.custom_beautifier_name) { //check if we need to format javascript
+    this._print_custom_beatifier_text(printer, raw_token, last_tag_token);
+  } else if (last_tag_token.is_unformatted || last_tag_token.is_content_unformatted) {
+    printer.add_raw_token(raw_token);
+  } else {
+    printer.traverse_whitespace(raw_token);
+    printer.print_token(raw_token);
+  }
+  return parser_token;
+};
+
+Beautifier$4.prototype._print_custom_beatifier_text = function(printer, raw_token, last_tag_token) {
+  var local = this;
+  if (raw_token.text !== '') {
+
+    var text = raw_token.text,
+      _beautifier,
+      script_indent_level = 1,
+      pre = '',
+      post = '';
+    if (last_tag_token.custom_beautifier_name === 'javascript' && typeof this._js_beautify === 'function') {
+      _beautifier = this._js_beautify;
+    } else if (last_tag_token.custom_beautifier_name === 'css' && typeof this._css_beautify === 'function') {
+      _beautifier = this._css_beautify;
+    } else if (last_tag_token.custom_beautifier_name === 'html') {
+      _beautifier = function(html_source, options) {
+        var beautifier = new Beautifier$4(html_source, options, local._js_beautify, local._css_beautify);
+        return beautifier.beautify();
+      };
+    }
+
+    if (this._options.indent_scripts === "keep") {
+      script_indent_level = 0;
+    } else if (this._options.indent_scripts === "separate") {
+      script_indent_level = -printer.indent_level;
+    }
+
+    var indentation = printer.get_full_indent(script_indent_level);
+
+    // if there is at least one empty line at the end of this text, strip it
+    // we'll be adding one back after the text but before the containing tag.
+    text = text.replace(/\n[ \t]*$/, '');
+
+    // Handle the case where content is wrapped in a comment or cdata.
+    if (last_tag_token.custom_beautifier_name !== 'html' &&
+      text[0] === '<' && text.match(/^(<!--|<!\[CDATA\[)/)) {
+      var matched = /^(<!--[^\n]*|<!\[CDATA\[)(\n?)([ \t\n]*)([\s\S]*)(-->|]]>)$/.exec(text);
+
+      // if we start to wrap but don't finish, print raw
+      if (!matched) {
+        printer.add_raw_token(raw_token);
+        return;
+      }
+
+      pre = indentation + matched[1] + '\n';
+      text = matched[4];
+      if (matched[5]) {
+        post = indentation + matched[5];
+      }
+
+      // if there is at least one empty line at the end of this text, strip it
+      // we'll be adding one back after the text but before the containing tag.
+      text = text.replace(/\n[ \t]*$/, '');
+
+      if (matched[2] || matched[3].indexOf('\n') !== -1) {
+        // if the first line of the non-comment text has spaces
+        // use that as the basis for indenting in null case.
+        matched = matched[3].match(/[ \t]+$/);
+        if (matched) {
+          raw_token.whitespace_before = matched[0];
+        }
+      }
+    }
+
+    if (text) {
+      if (_beautifier) {
+
+        // call the Beautifier if avaliable
+        var Child_options = function() {
+          this.eol = '\n';
+        };
+        Child_options.prototype = this._options.raw_options;
+        var child_options = new Child_options();
+        text = _beautifier(indentation + text, child_options);
+      } else {
+        // simply indent the string otherwise
+        var white = raw_token.whitespace_before;
+        if (white) {
+          text = text.replace(new RegExp('\n(' + white + ')?', 'g'), '\n');
+        }
+
+        text = indentation + text.replace(/\n/g, '\n' + indentation);
+      }
+    }
+
+    if (pre) {
+      if (!text) {
+        text = pre + post;
+      } else {
+        text = pre + text + '\n' + post;
+      }
+    }
+
+    printer.print_newline(false);
+    if (text) {
+      raw_token.text = text;
+      raw_token.whitespace_before = '';
+      raw_token.newlines = 0;
+      printer.add_raw_token(raw_token);
+      printer.print_newline(true);
+    }
+  }
+};
+
+Beautifier$4.prototype._handle_tag_open = function(printer, raw_token, last_tag_token, last_token) {
+  var parser_token = this._get_tag_open_token(raw_token);
+
+  if ((last_tag_token.is_unformatted || last_tag_token.is_content_unformatted) &&
+    raw_token.type === TOKEN$4.TAG_OPEN && raw_token.text.indexOf('</') === 0) {
+    // End element tags for unformatted or content_unformatted elements
+    // are printed raw to keep any newlines inside them exactly the same.
+    printer.add_raw_token(raw_token);
+  } else {
+    printer.traverse_whitespace(raw_token);
+    this._set_tag_position(printer, raw_token, parser_token, last_tag_token, last_token);
+    if (!parser_token.is_inline_element) {
+      printer.set_wrap_point();
+    }
+    printer.print_token(raw_token);
+  }
+
+  //indent attributes an auto, forced, aligned or forced-align line-wrap
+  if (this._is_wrap_attributes_force_aligned || this._is_wrap_attributes_aligned_multiple || this._is_wrap_attributes_preserve_aligned) {
+    parser_token.alignment_size = raw_token.text.length + 1;
+  }
+
+  if (!parser_token.tag_complete && !parser_token.is_unformatted) {
+    printer.alignment_size = parser_token.alignment_size;
+  }
+
+  return parser_token;
+};
+
+var TagOpenParserToken = function(parent, raw_token) {
+  this.parent = parent || null;
+  this.text = '';
+  this.type = 'TK_TAG_OPEN';
+  this.tag_name = '';
+  this.is_inline_element = false;
+  this.is_unformatted = false;
+  this.is_content_unformatted = false;
+  this.is_empty_element = false;
+  this.is_start_tag = false;
+  this.is_end_tag = false;
+  this.indent_content = false;
+  this.multiline_content = false;
+  this.custom_beautifier_name = null;
+  this.start_tag_token = null;
+  this.attr_count = 0;
+  this.has_wrapped_attrs = false;
+  this.alignment_size = 0;
+  this.tag_complete = false;
+  this.tag_start_char = '';
+  this.tag_check = '';
+
+  if (!raw_token) {
+    this.tag_complete = true;
+  } else {
+    var tag_check_match;
+
+    this.tag_start_char = raw_token.text[0];
+    this.text = raw_token.text;
+
+    if (this.tag_start_char === '<') {
+      tag_check_match = raw_token.text.match(/^<([^\s>]*)/);
+      this.tag_check = tag_check_match ? tag_check_match[1] : '';
+    } else {
+      tag_check_match = raw_token.text.match(/^{{[#\^]?([^\s}]+)/);
+      this.tag_check = tag_check_match ? tag_check_match[1] : '';
+    }
+    this.tag_check = this.tag_check.toLowerCase();
+
+    if (raw_token.type === TOKEN$4.COMMENT) {
+      this.tag_complete = true;
+    }
+
+    this.is_start_tag = this.tag_check.charAt(0) !== '/';
+    this.tag_name = !this.is_start_tag ? this.tag_check.substr(1) : this.tag_check;
+    this.is_end_tag = !this.is_start_tag ||
+      (raw_token.closed && raw_token.closed.text === '/>');
+
+    // handlebars tags that don't start with # or ^ are single_tags, and so also start and end.
+    this.is_end_tag = this.is_end_tag ||
+      (this.tag_start_char === '{' && (this.text.length < 3 || (/[^#\^]/.test(this.text.charAt(2)))));
+  }
+};
+
+Beautifier$4.prototype._get_tag_open_token = function(raw_token) { //function to get a full tag and parse its type
+  var parser_token = new TagOpenParserToken(this._tag_stack.get_parser_token(), raw_token);
+
+  parser_token.alignment_size = this._options.wrap_attributes_indent_size;
+
+  parser_token.is_end_tag = parser_token.is_end_tag ||
+    in_array$2(parser_token.tag_check, this._options.void_elements);
+
+  parser_token.is_empty_element = parser_token.tag_complete ||
+    (parser_token.is_start_tag && parser_token.is_end_tag);
+
+  parser_token.is_unformatted = !parser_token.tag_complete && in_array$2(parser_token.tag_check, this._options.unformatted);
+  parser_token.is_content_unformatted = !parser_token.is_empty_element && in_array$2(parser_token.tag_check, this._options.content_unformatted);
+  parser_token.is_inline_element = in_array$2(parser_token.tag_name, this._options.inline) || parser_token.tag_start_char === '{';
+
+  return parser_token;
+};
+
+Beautifier$4.prototype._set_tag_position = function(printer, raw_token, parser_token, last_tag_token, last_token) {
+
+  if (!parser_token.is_empty_element) {
+    if (parser_token.is_end_tag) { //this tag is a double tag so check for tag-ending
+      parser_token.start_tag_token = this._tag_stack.try_pop(parser_token.tag_name); //remove it and all ancestors
+    } else { // it's a start-tag
+      // check if this tag is starting an element that has optional end element
+      // and do an ending needed
+      if (this._do_optional_end_element(parser_token)) {
+        if (!parser_token.is_inline_element) {
+          if (parser_token.parent) {
+            parser_token.parent.multiline_content = true;
+          }
+          printer.print_newline(false);
+        }
+
+      }
+
+      this._tag_stack.record_tag(parser_token); //push it on the tag stack
+
+      if ((parser_token.tag_name === 'script' || parser_token.tag_name === 'style') &&
+        !(parser_token.is_unformatted || parser_token.is_content_unformatted)) {
+        parser_token.custom_beautifier_name = get_custom_beautifier_name(parser_token.tag_check, raw_token);
+      }
+    }
+  }
+
+  if (in_array$2(parser_token.tag_check, this._options.extra_liners)) { //check if this double needs an extra line
+    printer.print_newline(false);
+    if (!printer._output.just_added_blankline()) {
+      printer.print_newline(true);
+    }
+  }
+
+  if (parser_token.is_empty_element) { //if this tag name is a single tag type (either in the list or has a closing /)
+
+    // if you hit an else case, reset the indent level if you are inside an:
+    // 'if', 'unless', or 'each' block.
+    if (parser_token.tag_start_char === '{' && parser_token.tag_check === 'else') {
+      this._tag_stack.indent_to_tag(['if', 'unless', 'each']);
+      parser_token.indent_content = true;
+      // Don't add a newline if opening {{#if}} tag is on the current line
+      var foundIfOnCurrentLine = printer.current_line_has_match(/{{#if/);
+      if (!foundIfOnCurrentLine) {
+        printer.print_newline(false);
+      }
+    }
+
+    // Don't add a newline before elements that should remain where they are.
+    if (parser_token.tag_name === '!--' && last_token.type === TOKEN$4.TAG_CLOSE &&
+      last_tag_token.is_end_tag && parser_token.text.indexOf('\n') === -1) ; else if (!parser_token.is_inline_element && !parser_token.is_unformatted) {
+      printer.print_newline(false);
+    }
+  } else if (parser_token.is_unformatted || parser_token.is_content_unformatted) {
+    if (!parser_token.is_inline_element && !parser_token.is_unformatted) {
+      printer.print_newline(false);
+    }
+  } else if (parser_token.is_end_tag) { //this tag is a double tag so check for tag-ending
+    if ((parser_token.start_tag_token && parser_token.start_tag_token.multiline_content) ||
+      !(parser_token.is_inline_element ||
+        (last_tag_token.is_inline_element) ||
+        (last_token.type === TOKEN$4.TAG_CLOSE &&
+          parser_token.start_tag_token === last_tag_token) ||
+        (last_token.type === 'TK_CONTENT')
+      )) {
+      printer.print_newline(false);
+    }
+  } else { // it's a start-tag
+    parser_token.indent_content = !parser_token.custom_beautifier_name;
+
+    if (parser_token.tag_start_char === '<') {
+      if (parser_token.tag_name === 'html') {
+        parser_token.indent_content = this._options.indent_inner_html;
+      } else if (parser_token.tag_name === 'head') {
+        parser_token.indent_content = this._options.indent_head_inner_html;
+      } else if (parser_token.tag_name === 'body') {
+        parser_token.indent_content = this._options.indent_body_inner_html;
+      }
+    }
+
+    if (!parser_token.is_inline_element && last_token.type !== 'TK_CONTENT') {
+      if (parser_token.parent) {
+        parser_token.parent.multiline_content = true;
+      }
+      printer.print_newline(false);
+    }
+  }
+};
+
+//To be used for <p> tag special case:
+//var p_closers = ['address', 'article', 'aside', 'blockquote', 'details', 'div', 'dl', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'header', 'hr', 'main', 'nav', 'ol', 'p', 'pre', 'section', 'table', 'ul'];
+
+Beautifier$4.prototype._do_optional_end_element = function(parser_token) {
+  var result = null;
+  // NOTE: cases of "if there is no more content in the parent element"
+  // are handled automatically by the beautifier.
+  // It assumes parent or ancestor close tag closes all children.
+  // https://www.w3.org/TR/html5/syntax.html#optional-tags
+  if (parser_token.is_empty_element || !parser_token.is_start_tag || !parser_token.parent) {
+    return;
+
+  } else if (parser_token.tag_name === 'body') {
+    // A head element’s end tag may be omitted if the head element is not immediately followed by a space character or a comment.
+    result = result || this._tag_stack.try_pop('head');
+
+    //} else if (parser_token.tag_name === 'body') {
+    // DONE: A body element’s end tag may be omitted if the body element is not immediately followed by a comment.
+
+  } else if (parser_token.tag_name === 'li') {
+    // An li element’s end tag may be omitted if the li element is immediately followed by another li element or if there is no more content in the parent element.
+    result = result || this._tag_stack.try_pop('li', ['ol', 'ul']);
+
+  } else if (parser_token.tag_name === 'dd' || parser_token.tag_name === 'dt') {
+    // A dd element’s end tag may be omitted if the dd element is immediately followed by another dd element or a dt element, or if there is no more content in the parent element.
+    // A dt element’s end tag may be omitted if the dt element is immediately followed by another dt element or a dd element.
+    result = result || this._tag_stack.try_pop('dt', ['dl']);
+    result = result || this._tag_stack.try_pop('dd', ['dl']);
+
+    //} else if (p_closers.indexOf(parser_token.tag_name) !== -1) {
+    //TODO: THIS IS A BUG FARM. We are not putting this into 1.8.0 as it is likely to blow up.
+    //A p element’s end tag may be omitted if the p element is immediately followed by an address, article, aside, blockquote, details, div, dl, fieldset, figcaption, figure, footer, form, h1, h2, h3, h4, h5, h6, header, hr, main, nav, ol, p, pre, section, table, or ul element, or if there is no more content in the parent element and the parent element is an HTML element that is not an a, audio, del, ins, map, noscript, or video element, or an autonomous custom element.
+    //result = result || this._tag_stack.try_pop('p', ['body']);
+
+  } else if (parser_token.tag_name === 'rp' || parser_token.tag_name === 'rt') {
+    // An rt element’s end tag may be omitted if the rt element is immediately followed by an rt or rp element, or if there is no more content in the parent element.
+    // An rp element’s end tag may be omitted if the rp element is immediately followed by an rt or rp element, or if there is no more content in the parent element.
+    result = result || this._tag_stack.try_pop('rt', ['ruby', 'rtc']);
+    result = result || this._tag_stack.try_pop('rp', ['ruby', 'rtc']);
+
+  } else if (parser_token.tag_name === 'optgroup') {
+    // An optgroup element’s end tag may be omitted if the optgroup element is immediately followed by another optgroup element, or if there is no more content in the parent element.
+    // An option element’s end tag may be omitted if the option element is immediately followed by another option element, or if it is immediately followed by an optgroup element, or if there is no more content in the parent element.
+    result = result || this._tag_stack.try_pop('optgroup', ['select']);
+    //result = result || this._tag_stack.try_pop('option', ['select']);
+
+  } else if (parser_token.tag_name === 'option') {
+    // An option element’s end tag may be omitted if the option element is immediately followed by another option element, or if it is immediately followed by an optgroup element, or if there is no more content in the parent element.
+    result = result || this._tag_stack.try_pop('option', ['select', 'datalist', 'optgroup']);
+
+  } else if (parser_token.tag_name === 'colgroup') {
+    // DONE: A colgroup element’s end tag may be omitted if the colgroup element is not immediately followed by a space character or a comment.
+    // A caption element's end tag may be ommitted if a colgroup, thead, tfoot, tbody, or tr element is started.
+    result = result || this._tag_stack.try_pop('caption', ['table']);
+
+  } else if (parser_token.tag_name === 'thead') {
+    // A colgroup element's end tag may be ommitted if a thead, tfoot, tbody, or tr element is started.
+    // A caption element's end tag may be ommitted if a colgroup, thead, tfoot, tbody, or tr element is started.
+    result = result || this._tag_stack.try_pop('caption', ['table']);
+    result = result || this._tag_stack.try_pop('colgroup', ['table']);
+
+    //} else if (parser_token.tag_name === 'caption') {
+    // DONE: A caption element’s end tag may be omitted if the caption element is not immediately followed by a space character or a comment.
+
+  } else if (parser_token.tag_name === 'tbody' || parser_token.tag_name === 'tfoot') {
+    // A thead element’s end tag may be omitted if the thead element is immediately followed by a tbody or tfoot element.
+    // A tbody element’s end tag may be omitted if the tbody element is immediately followed by a tbody or tfoot element, or if there is no more content in the parent element.
+    // A colgroup element's end tag may be ommitted if a thead, tfoot, tbody, or tr element is started.
+    // A caption element's end tag may be ommitted if a colgroup, thead, tfoot, tbody, or tr element is started.
+    result = result || this._tag_stack.try_pop('caption', ['table']);
+    result = result || this._tag_stack.try_pop('colgroup', ['table']);
+    result = result || this._tag_stack.try_pop('thead', ['table']);
+    result = result || this._tag_stack.try_pop('tbody', ['table']);
+
+    //} else if (parser_token.tag_name === 'tfoot') {
+    // DONE: A tfoot element’s end tag may be omitted if there is no more content in the parent element.
+
+  } else if (parser_token.tag_name === 'tr') {
+    // A tr element’s end tag may be omitted if the tr element is immediately followed by another tr element, or if there is no more content in the parent element.
+    // A colgroup element's end tag may be ommitted if a thead, tfoot, tbody, or tr element is started.
+    // A caption element's end tag may be ommitted if a colgroup, thead, tfoot, tbody, or tr element is started.
+    result = result || this._tag_stack.try_pop('caption', ['table']);
+    result = result || this._tag_stack.try_pop('colgroup', ['table']);
+    result = result || this._tag_stack.try_pop('tr', ['table', 'thead', 'tbody', 'tfoot']);
+
+  } else if (parser_token.tag_name === 'th' || parser_token.tag_name === 'td') {
+    // A td element’s end tag may be omitted if the td element is immediately followed by a td or th element, or if there is no more content in the parent element.
+    // A th element’s end tag may be omitted if the th element is immediately followed by a td or th element, or if there is no more content in the parent element.
+    result = result || this._tag_stack.try_pop('td', ['table', 'thead', 'tbody', 'tfoot', 'tr']);
+    result = result || this._tag_stack.try_pop('th', ['table', 'thead', 'tbody', 'tfoot', 'tr']);
+  }
+
+  // Start element omission not handled currently
+  // A head element’s start tag may be omitted if the element is empty, or if the first thing inside the head element is an element.
+  // A tbody element’s start tag may be omitted if the first thing inside the tbody element is a tr element, and if the element is not immediately preceded by a tbody, thead, or tfoot element whose end tag has been omitted. (It can’t be omitted if the element is empty.)
+  // A colgroup element’s start tag may be omitted if the first thing inside the colgroup element is a col element, and if the element is not immediately preceded by another colgroup element whose end tag has been omitted. (It can’t be omitted if the element is empty.)
+
+  // Fix up the parent of the parser token
+  parser_token.parent = this._tag_stack.get_parser_token();
+
+  return result;
+};
+
+var Beautifier_1$2 = Beautifier$4;
+
+var beautifier$2 = {
+	Beautifier: Beautifier_1$2
+};
+
+var Beautifier$5 = beautifier$2.Beautifier,
+  Options$9 = options$3.Options;
+
+function style_html(html_source, options, js_beautify, css_beautify) {
+  var beautifier = new Beautifier$5(html_source, options, js_beautify, css_beautify);
+  return beautifier.beautify();
+}
+
+var html = style_html;
+var defaultOptions$2 = function() {
+  return new Options$9();
+};
+html.defaultOptions = defaultOptions$2;
+
+function style_html$1(html_source, options, js, css$1) {
+  js = js || javascript;
+  css$1 = css$1 || css;
+  return html(html_source, options, js, css$1);
+}
+style_html$1.defaultOptions = html.defaultOptions;
+
+var js = javascript;
+var css$1 = css;
+var html$1 = style_html$1;
+
+var src = {
+	js: js,
+	css: css$1,
+	html: html$1
+};
+
+var js$1 = createCommonjsModule(function (module) {
+
+/**
+The following batches are equivalent:
+
+var beautify_js = require('js-beautify');
+var beautify_js = require('js-beautify').js;
+var beautify_js = require('js-beautify').js_beautify;
+
+var beautify_css = require('js-beautify').css;
+var beautify_css = require('js-beautify').css_beautify;
+
+var beautify_html = require('js-beautify').html;
+var beautify_html = require('js-beautify').html_beautify;
+
+All methods returned accept two arguments, the source string and an options object.
+**/
+
+function get_beautify(js_beautify, css_beautify, html_beautify) {
+  // the default is js
+  var beautify = function(src, config) {
+    return js_beautify.js_beautify(src, config);
+  };
+
+  // short aliases
+  beautify.js = js_beautify.js_beautify;
+  beautify.css = css_beautify.css_beautify;
+  beautify.html = html_beautify.html_beautify;
+
+  // legacy aliases
+  beautify.js_beautify = js_beautify.js_beautify;
+  beautify.css_beautify = css_beautify.css_beautify;
+  beautify.html_beautify = html_beautify.html_beautify;
+
+  return beautify;
+}
+
+{
+  (function(mod) {
+    var beautifier = src;
+    beautifier.js_beautify = beautifier.js;
+    beautifier.css_beautify = beautifier.css;
+    beautifier.html_beautify = beautifier.html;
+
+    mod.exports = get_beautify(beautifier, beautifier, beautifier);
+
+  })(module);
+}
+});
+
+/*!
+ * is-whitespace <https://github.com/jonschlinkert/is-whitespace>
+ *
+ * Copyright (c) 2014-2015, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+var cache;
+
+var isWhitespace = function isWhitespace(str) {
+  return (typeof str === 'string') && regex().test(str);
+};
+
+function regex() {
+  // ensure that runtime compilation only happens once
+  return cache || (cache = new RegExp('^[\\s\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028\u2029\uFEFF"]+$'));
+}
+
+/*!
+ * is-extendable <https://github.com/jonschlinkert/is-extendable>
+ *
+ * Copyright (c) 2015, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+var isExtendable = function isExtendable(val) {
+  return typeof val !== 'undefined' && val !== null
+    && (typeof val === 'object' || typeof val === 'function');
+};
+
+var extendShallow = function extend(o/*, objects*/) {
+  var arguments$1 = arguments;
+
+  if (!isExtendable(o)) { o = {}; }
+
+  var len = arguments.length;
+  for (var i = 1; i < len; i++) {
+    var obj = arguments$1[i];
+
+    if (isExtendable(obj)) {
+      assign(o, obj);
+    }
+  }
+  return o;
+};
+
+function assign(a, b) {
+  for (var key in b) {
+    if (hasOwn(b, key)) {
+      a[key] = b[key];
+    }
+  }
+}
+
+/**
+ * Returns true if the given `key` is an own property of `obj`.
+ */
+
+function hasOwn(obj, key) {
+  return Object.prototype.hasOwnProperty.call(obj, key);
+}
+
+/*!
+ * Determine if an object is a Buffer
+ *
+ * @author   Feross Aboukhadijeh <https://feross.org>
+ * @license  MIT
+ */
+
+// The _isBuffer check is for Safari 5-7 support, because it's missing
+// Object.prototype.constructor. Remove this eventually
+var isBuffer_1 = function (obj) {
+  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
+};
+
+function isBuffer (obj) {
+  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
+}
+
+// For Node v0.10 support. Remove this eventually.
+function isSlowBuffer (obj) {
+  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
+}
+
+var toString = Object.prototype.toString;
+
+/**
+ * Get the native `typeof` a value.
+ *
+ * @param  {*} `val`
+ * @return {*} Native javascript type
+ */
+
+var kindOf = function kindOf(val) {
+  // primitivies
+  if (typeof val === 'undefined') {
+    return 'undefined';
+  }
+  if (val === null) {
+    return 'null';
+  }
+  if (val === true || val === false || val instanceof Boolean) {
+    return 'boolean';
+  }
+  if (typeof val === 'string' || val instanceof String) {
+    return 'string';
+  }
+  if (typeof val === 'number' || val instanceof Number) {
+    return 'number';
+  }
+
+  // functions
+  if (typeof val === 'function' || val instanceof Function) {
+    return 'function';
+  }
+
+  // array
+  if (typeof Array.isArray !== 'undefined' && Array.isArray(val)) {
+    return 'array';
+  }
+
+  // check for instances of RegExp and Date before calling `toString`
+  if (val instanceof RegExp) {
+    return 'regexp';
+  }
+  if (val instanceof Date) {
+    return 'date';
+  }
+
+  // other objects
+  var type = toString.call(val);
+
+  if (type === '[object RegExp]') {
+    return 'regexp';
+  }
+  if (type === '[object Date]') {
+    return 'date';
+  }
+  if (type === '[object Arguments]') {
+    return 'arguments';
+  }
+  if (type === '[object Error]') {
+    return 'error';
+  }
+
+  // buffer
+  if (isBuffer_1(val)) {
+    return 'buffer';
+  }
+
+  // es6: Map, WeakMap, Set, WeakSet
+  if (type === '[object Set]') {
+    return 'set';
+  }
+  if (type === '[object WeakSet]') {
+    return 'weakset';
+  }
+  if (type === '[object Map]') {
+    return 'map';
+  }
+  if (type === '[object WeakMap]') {
+    return 'weakmap';
+  }
+  if (type === '[object Symbol]') {
+    return 'symbol';
+  }
+
+  // typed arrays
+  if (type === '[object Int8Array]') {
+    return 'int8array';
+  }
+  if (type === '[object Uint8Array]') {
+    return 'uint8array';
+  }
+  if (type === '[object Uint8ClampedArray]') {
+    return 'uint8clampedarray';
+  }
+  if (type === '[object Int16Array]') {
+    return 'int16array';
+  }
+  if (type === '[object Uint16Array]') {
+    return 'uint16array';
+  }
+  if (type === '[object Int32Array]') {
+    return 'int32array';
+  }
+  if (type === '[object Uint32Array]') {
+    return 'uint32array';
+  }
+  if (type === '[object Float32Array]') {
+    return 'float32array';
+  }
+  if (type === '[object Float64Array]') {
+    return 'float64array';
+  }
+
+  // must be a plain object
+  return 'object';
+};
+
+var condenseNewlines = function(str, options) {
+  var opts = extendShallow({}, options);
+  var sep = opts.sep || '\n\n';
+  var min = opts.min;
+  var re;
+
+  if (typeof min === 'number' && min !== 2) {
+    re = new RegExp('(\\r\\n|\\n|\\u2424) {' + min + ',}');
+  }
+  if (typeof re === 'undefined') {
+    re = opts.regex || /(\r\n|\n|\u2424){2,}/g;
+  }
+
+  // if a line is 100% whitespace it will be trimmed, so that
+  // later we can condense newlines correctly
+  if (opts.keepWhitespace !== true) {
+    str = str.split('\n').map(function(line) {
+      return isWhitespace(line) ? line.trim() : line;
+    }).join('\n');
+  }
+
+  str = trailingNewline(str, opts);
+  return str.replace(re, sep);
+};
+
+function trailingNewline(str, options) {
+  var val = options.trailingNewline;
+  if (val === false) {
+    return str;
+  }
+
+  switch (kindOf(val)) {
+    case 'string':
+      str = str.replace(/\s+$/, options.trailingNewline);
+      break;
+    case 'function':
+      str = options.trailingNewline(str);
+      break;
+    case 'undefined':
+    case 'boolean':
+    default: {
+      str = str.replace(/\s+$/, '\n');
+      break;
+    }
+  }
+  return str;
+}
+
+var defaults = {
+  unformatted: ['code', 'pre', 'em', 'strong', 'span'],
+  indent_inner_html: true,
+  indent_char: ' ',
+  indent_size: 2,
+  sep: '\n'
+};
+
+var pretty = function pretty(str, options) {
+  var opts = extendShallow({}, defaults, options);
+  str = js$1.html(str, opts);
+
+  if (opts.ocd === true) {
+    if (opts.newlines) { opts.sep = opts.newlines; }
+    return ocd(str, opts);
+  }
+
+  return str;
+};
+
+function ocd(str, options) {
+  // Normalize and condense all newlines
+  return condenseNewlines(str, options)
+    // Remove empty whitespace the top of a file.
+    .replace(/^\s+/g, '')
+    // Remove extra whitespace from eof
+    .replace(/\s+$/g, '\n')
+
+    // Add a space above each comment
+    .replace(/(\s*<!--)/g, '\n$1')
+    // Bring closing comments up to the same line as closing tag.
+    .replace(/>(\s*)(?=<!--\s*\/)/g, '> ');
+}
+
+// 
+
+function getSelectorType(selector) {
+  if (isDomSelector(selector)) { return DOM_SELECTOR }
+  if (isVueComponent(selector)) { return COMPONENT_SELECTOR }
+  if (isNameSelector(selector)) { return NAME_SELECTOR }
+  if (isRefSelector(selector)) { return REF_SELECTOR }
+
+  return INVALID_SELECTOR
+}
+
+function getSelector(
+  selector,
+  methodName
+) {
+  var type = getSelectorType(selector);
+  if (type === INVALID_SELECTOR) {
+    throwError(
+      "wrapper." + methodName + "() must be passed a valid CSS selector, Vue " +
+        "constructor, or valid find option object"
+    );
+  }
+  return {
+    type: type,
+    value: selector
+  }
+}
+
+// 
+
+var WrapperArray = function WrapperArray(wrappers) {
+  var length = wrappers.length;
+  // $FlowIgnore
+  Object.defineProperty(this, 'wrappers', {
+    get: function () { return wrappers; },
+    set: function () { return throwError('wrapperArray.wrappers is read-only'); }
+  });
+  // $FlowIgnore
+  Object.defineProperty(this, 'length', {
+    get: function () { return length; },
+    set: function () { return throwError('wrapperArray.length is read-only'); }
+  });
+};
+
+WrapperArray.prototype.at = function at (index) {
+  var normalizedIndex = index < 0 ? this.length + index : index;
+  if (normalizedIndex > this.length - 1 || normalizedIndex < 0) {
+    var error = "no item exists at " + index;
+    error += index < 0 ? (" (normalized to " + normalizedIndex + ")") : '';
+    throwError(error);
+  }
+  return this.wrappers[normalizedIndex]
+};
+
+WrapperArray.prototype.attributes = function attributes () {
+  this.throwErrorIfWrappersIsEmpty('attributes');
+
+  throwError(
+    "attributes must be called on a single wrapper, use " +
+      "at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.classes = function classes () {
+  this.throwErrorIfWrappersIsEmpty('classes');
+
+  throwError(
+    "classes must be called on a single wrapper, use " +
+      "at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.contains = function contains (selector) {
+  this.throwErrorIfWrappersIsEmpty('contains');
+
+  return this.wrappers.every(function (wrapper) { return wrapper.contains(selector); })
+};
+
+WrapperArray.prototype.exists = function exists () {
+  return this.length > 0 && this.wrappers.every(function (wrapper) { return wrapper.exists(); })
+};
+
+WrapperArray.prototype.filter = function filter (predicate) {
+  return new WrapperArray(this.wrappers.filter(predicate))
+};
+
+WrapperArray.prototype.emitted = function emitted () {
+  this.throwErrorIfWrappersIsEmpty('emitted');
+
+  throwError(
+    "emitted must be called on a single wrapper, use " +
+      "at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.emittedByOrder = function emittedByOrder () {
+  this.throwErrorIfWrappersIsEmpty('emittedByOrder');
+
+  throwError(
+    "emittedByOrder must be called on a single wrapper, " +
+      "use at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.findAll = function findAll () {
+  this.throwErrorIfWrappersIsEmpty('findAll');
+
+  throwError(
+    "findAll must be called on a single wrapper, use " +
+      "at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.find = function find () {
+  this.throwErrorIfWrappersIsEmpty('find');
+
+  throwError(
+    "find must be called on a single wrapper, use at(i) " +
+      "to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.html = function html () {
+  this.throwErrorIfWrappersIsEmpty('html');
+
+  throwError(
+    "html must be called on a single wrapper, use at(i) " +
+      "to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.is = function is (selector) {
+  this.throwErrorIfWrappersIsEmpty('is');
+
+  return this.wrappers.every(function (wrapper) { return wrapper.is(selector); })
+};
+
+WrapperArray.prototype.isEmpty = function isEmpty () {
+  this.throwErrorIfWrappersIsEmpty('isEmpty');
+
+  return this.wrappers.every(function (wrapper) { return wrapper.isEmpty(); })
+};
+
+WrapperArray.prototype.isVisible = function isVisible () {
+  this.throwErrorIfWrappersIsEmpty('isVisible');
+
+  return this.wrappers.every(function (wrapper) { return wrapper.isVisible(); })
+};
+
+WrapperArray.prototype.isVueInstance = function isVueInstance () {
+  this.throwErrorIfWrappersIsEmpty('isVueInstance');
+
+  return this.wrappers.every(function (wrapper) { return wrapper.isVueInstance(); })
+};
+
+WrapperArray.prototype.name = function name () {
+  this.throwErrorIfWrappersIsEmpty('name');
+
+  throwError(
+    "name must be called on a single wrapper, use at(i) " +
+      "to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.overview = function overview () {
+  this.throwErrorIfWrappersIsEmpty('overview()');
+
+  throwError(
+    "overview() must be called on a single wrapper, use at(i) " +
+      "to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.props = function props () {
+  this.throwErrorIfWrappersIsEmpty('props');
+
+  throwError(
+    "props must be called on a single wrapper, use " +
+      "at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.text = function text () {
+  this.throwErrorIfWrappersIsEmpty('text');
+
+  throwError(
+    "text must be called on a single wrapper, use at(i) " +
+      "to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.throwErrorIfWrappersIsEmpty = function throwErrorIfWrappersIsEmpty (method) {
+  if (this.wrappers.length === 0) {
+    throwError((method + " cannot be called on 0 items"));
+  }
+};
+
+WrapperArray.prototype.setData = function setData (data) {
+  this.throwErrorIfWrappersIsEmpty('setData');
+
+  return Promise.all(this.wrappers.map(function (wrapper) { return wrapper.setData(data); }))
+};
+
+WrapperArray.prototype.setMethods = function setMethods (props) {
+  this.throwErrorIfWrappersIsEmpty('setMethods');
+
+  this.wrappers.forEach(function (wrapper) { return wrapper.setMethods(props); });
+};
+
+WrapperArray.prototype.setProps = function setProps (props) {
+  this.throwErrorIfWrappersIsEmpty('setProps');
+
+  return Promise.all(this.wrappers.map(function (wrapper) { return wrapper.setProps(props); }))
+};
+
+WrapperArray.prototype.setValue = function setValue (value) {
+  this.throwErrorIfWrappersIsEmpty('setValue');
+
+  return Promise.all(this.wrappers.map(function (wrapper) { return wrapper.setValue(value); }))
+};
+
+WrapperArray.prototype.setChecked = function setChecked (checked) {
+    if ( checked === void 0 ) checked = true;
+
+  this.throwErrorIfWrappersIsEmpty('setChecked');
+
+  return Promise.all(
+    this.wrappers.map(function (wrapper) { return wrapper.setChecked(checked); })
+  )
+};
+
+WrapperArray.prototype.setSelected = function setSelected () {
+  this.throwErrorIfWrappersIsEmpty('setSelected');
+
+  throwError(
+    "setSelected must be called on a single wrapper, " +
+      "use at(i) to access a wrapper"
+  );
+};
+
+WrapperArray.prototype.trigger = function trigger (event, options) {
+  this.throwErrorIfWrappersIsEmpty('trigger');
+
+  return Promise.all(
+    this.wrappers.map(function (wrapper) { return wrapper.trigger(event, options); })
+  )
+};
+
+WrapperArray.prototype.destroy = function destroy () {
+  this.throwErrorIfWrappersIsEmpty('destroy');
+
+  this.wrappers.forEach(function (wrapper) { return wrapper.destroy(); });
+};
+
+// 
+
+var buildSelectorString = function (selector) {
+  if (getSelectorType(selector) === REF_SELECTOR) {
+    return ("ref=\"" + (selector.value.ref) + "\"")
+  }
+
+  if (typeof selector === 'string') {
+    return selector
+  }
+
+  return 'Component'
+};
+
+var ErrorWrapper = function ErrorWrapper(selector) {
+  this.selector = selector;
+};
+
+ErrorWrapper.prototype.at = function at () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call at() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.attributes = function attributes () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call attributes() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.classes = function classes () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call classes() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.contains = function contains () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call contains() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.emitted = function emitted () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call emitted() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.emittedByOrder = function emittedByOrder () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call emittedByOrder() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.exists = function exists () {
+  return false
+};
+
+ErrorWrapper.prototype.filter = function filter () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call filter() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.visible = function visible () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call visible() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.hasAttribute = function hasAttribute () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call hasAttribute() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.hasClass = function hasClass () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call hasClass() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.hasProp = function hasProp () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call hasProp() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.hasStyle = function hasStyle () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call hasStyle() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.findAll = function findAll () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call findAll() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.find = function find () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call find() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.html = function html () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call html() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.is = function is () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call is() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.isEmpty = function isEmpty () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call isEmpty() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.isVisible = function isVisible () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call isVisible() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.isVueInstance = function isVueInstance () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call isVueInstance() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.name = function name () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call name() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.overview = function overview () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call overview() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.props = function props () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call props() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.text = function text () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call text() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setComputed = function setComputed () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setComputed() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setData = function setData () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setData() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setMethods = function setMethods () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setMethods() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setProps = function setProps () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setProps() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setValue = function setValue () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setValue() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setChecked = function setChecked () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setChecked() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.setSelected = function setSelected () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call setSelected() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.trigger = function trigger () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call trigger() on empty Wrapper")
+  );
+};
+
+ErrorWrapper.prototype.destroy = function destroy () {
+  throwError(
+    ("find did not return " + (buildSelectorString(
+      this.selector
+    )) + ", cannot call destroy() on empty Wrapper")
+  );
+};
+
+/*!
+ * isElementVisible
+ * Ported from https://github.com/testing-library/jest-dom
+ * Licensed under the MIT License.
+ */
+
+function isStyleVisible(element) {
+  if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+    return false
+  }
+
+  // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+  // getComputedStyle should only work with connected elements.
+  var ref = element.isConnected
+    ? getComputedStyle(element)
+    : element.style;
+  var display = ref.display;
+  var visibility = ref.visibility;
+  var opacity = ref.opacity;
+  return (
+    display !== 'none' &&
+    visibility !== 'hidden' &&
+    visibility !== 'collapse' &&
+    opacity !== '0' &&
+    opacity !== 0
+  )
+}
+
+function isAttributeVisible(element, previousElement) {
+  return (
+    !element.hasAttribute('hidden') &&
+    (element.nodeName === 'DETAILS' && previousElement.nodeName !== 'SUMMARY'
+      ? element.hasAttribute('open')
+      : true)
+  )
+}
+
+function isElementVisible(element, previousElement) {
+  return (
+    element.nodeName !== '#comment' &&
+    isStyleVisible(element) &&
+    isAttributeVisible(element, previousElement) &&
+    (!element.parentElement || isElementVisible(element.parentElement, element))
+  )
+}
+
+function recursivelySetData(vm, target, data) {
+  Object.keys(data).forEach(function (key) {
+    var val = data[key];
+    var targetVal = target[key];
+
+    if (
+      isPlainObject(val) &&
+      isPlainObject(targetVal) &&
+      Object.keys(val).length > 0
+    ) {
+      recursivelySetData(vm, targetVal, val);
+    } else {
+      vm.$set(target, key, val);
+    }
+  });
+}
+
+var abort = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var afterprint = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var animationend = {
+	eventInterface: "AnimationEvent",
+	bubbles: true,
+	cancelable: false
+};
+var animationiteration = {
+	eventInterface: "AnimationEvent",
+	bubbles: true,
+	cancelable: false
+};
+var animationstart = {
+	eventInterface: "AnimationEvent",
+	bubbles: true,
+	cancelable: false
+};
+var appinstalled = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var audioprocess = {
+	eventInterface: "AudioProcessingEvent"
+};
+var audioend = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var audiostart = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var beforeprint = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var beforeunload = {
+	eventInterface: "BeforeUnloadEvent",
+	bubbles: false,
+	cancelable: true
+};
+var beginEvent = {
+	eventInterface: "TimeEvent",
+	bubbles: false,
+	cancelable: false
+};
+var blur = {
+	eventInterface: "FocusEvent",
+	bubbles: false,
+	cancelable: false
+};
+var boundary = {
+	eventInterface: "SpeechSynthesisEvent",
+	bubbles: false,
+	cancelable: false
+};
+var cached = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var canplay = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var canplaythrough = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var change = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var chargingchange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var chargingtimechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var checking = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var click = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var close = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var complete = {
+	eventInterface: "OfflineAudioCompletionEvent"
+};
+var compositionend = {
+	eventInterface: "CompositionEvent",
+	bubbles: true,
+	cancelable: true
+};
+var compositionstart = {
+	eventInterface: "CompositionEvent",
+	bubbles: true,
+	cancelable: true
+};
+var compositionupdate = {
+	eventInterface: "CompositionEvent",
+	bubbles: true,
+	cancelable: false
+};
+var contextmenu = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var copy = {
+	eventInterface: "ClipboardEvent"
+};
+var cut = {
+	eventInterface: "ClipboardEvent",
+	bubbles: true,
+	cancelable: true
+};
+var dblclick = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var devicechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var devicelight = {
+	eventInterface: "DeviceLightEvent",
+	bubbles: false,
+	cancelable: false
+};
+var devicemotion = {
+	eventInterface: "DeviceMotionEvent",
+	bubbles: false,
+	cancelable: false
+};
+var deviceorientation = {
+	eventInterface: "DeviceOrientationEvent",
+	bubbles: false,
+	cancelable: false
+};
+var deviceproximity = {
+	eventInterface: "DeviceProximityEvent",
+	bubbles: false,
+	cancelable: false
+};
+var dischargingtimechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var DOMActivate = {
+	eventInterface: "UIEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMAttributeNameChanged = {
+	eventInterface: "MutationNameEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMAttrModified = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMCharacterDataModified = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMContentLoaded = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: true
+};
+var DOMElementNameChanged = {
+	eventInterface: "MutationNameEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMFocusIn = {
+	eventInterface: "FocusEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMFocusOut = {
+	eventInterface: "FocusEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMNodeInserted = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMNodeInsertedIntoDocument = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMNodeRemoved = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMNodeRemovedFromDocument = {
+	eventInterface: "MutationEvent",
+	bubbles: true,
+	cancelable: true
+};
+var DOMSubtreeModified = {
+	eventInterface: "MutationEvent"
+};
+var downloading = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var drag = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: true
+};
+var dragend = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: false
+};
+var dragenter = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: true
+};
+var dragleave = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: false
+};
+var dragover = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: true
+};
+var dragstart = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: true
+};
+var drop = {
+	eventInterface: "DragEvent",
+	bubbles: true,
+	cancelable: true
+};
+var durationchange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var emptied = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var end = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var ended = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var endEvent = {
+	eventInterface: "TimeEvent",
+	bubbles: false,
+	cancelable: false
+};
+var error = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var focus = {
+	eventInterface: "FocusEvent",
+	bubbles: false,
+	cancelable: false
+};
+var focusin = {
+	eventInterface: "FocusEvent",
+	bubbles: true,
+	cancelable: false
+};
+var focusout = {
+	eventInterface: "FocusEvent",
+	bubbles: true,
+	cancelable: false
+};
+var fullscreenchange = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var fullscreenerror = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var gamepadconnected = {
+	eventInterface: "GamepadEvent",
+	bubbles: false,
+	cancelable: false
+};
+var gamepaddisconnected = {
+	eventInterface: "GamepadEvent",
+	bubbles: false,
+	cancelable: false
+};
+var gotpointercapture = {
+	eventInterface: "PointerEvent",
+	bubbles: false,
+	cancelable: false
+};
+var hashchange = {
+	eventInterface: "HashChangeEvent",
+	bubbles: true,
+	cancelable: false
+};
+var lostpointercapture = {
+	eventInterface: "PointerEvent",
+	bubbles: false,
+	cancelable: false
+};
+var input = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var invalid = {
+	eventInterface: "Event",
+	cancelable: true,
+	bubbles: false
+};
+var keydown = {
+	eventInterface: "KeyboardEvent",
+	bubbles: true,
+	cancelable: true
+};
+var keypress = {
+	eventInterface: "KeyboardEvent",
+	bubbles: true,
+	cancelable: true
+};
+var keyup = {
+	eventInterface: "KeyboardEvent",
+	bubbles: true,
+	cancelable: true
+};
+var languagechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var levelchange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var load = {
+	eventInterface: "UIEvent",
+	bubbles: false,
+	cancelable: false
+};
+var loadeddata = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var loadedmetadata = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var loadend = {
+	eventInterface: "ProgressEvent",
+	bubbles: false,
+	cancelable: false
+};
+var loadstart = {
+	eventInterface: "ProgressEvent",
+	bubbles: false,
+	cancelable: false
+};
+var mark = {
+	eventInterface: "SpeechSynthesisEvent",
+	bubbles: false,
+	cancelable: false
+};
+var message = {
+	eventInterface: "MessageEvent",
+	bubbles: false,
+	cancelable: false
+};
+var messageerror = {
+	eventInterface: "MessageEvent",
+	bubbles: false,
+	cancelable: false
+};
+var mousedown = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var mouseenter = {
+	eventInterface: "MouseEvent",
+	bubbles: false,
+	cancelable: false
+};
+var mouseleave = {
+	eventInterface: "MouseEvent",
+	bubbles: false,
+	cancelable: false
+};
+var mousemove = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var mouseout = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var mouseover = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var mouseup = {
+	eventInterface: "MouseEvent",
+	bubbles: true,
+	cancelable: true
+};
+var nomatch = {
+	eventInterface: "SpeechRecognitionEvent",
+	bubbles: false,
+	cancelable: false
+};
+var notificationclick = {
+	eventInterface: "NotificationEvent",
+	bubbles: false,
+	cancelable: false
+};
+var noupdate = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var obsolete = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var offline = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var online = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var open = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var orientationchange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var pagehide = {
+	eventInterface: "PageTransitionEvent",
+	bubbles: false,
+	cancelable: false
+};
+var pageshow = {
+	eventInterface: "PageTransitionEvent",
+	bubbles: false,
+	cancelable: false
+};
+var paste = {
+	eventInterface: "ClipboardEvent",
+	bubbles: true,
+	cancelable: true
+};
+var pause = {
+	eventInterface: "SpeechSynthesisEvent",
+	bubbles: false,
+	cancelable: false
+};
+var pointercancel = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: false
+};
+var pointerdown = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: true
+};
+var pointerenter = {
+	eventInterface: "PointerEvent",
+	bubbles: false,
+	cancelable: false
+};
+var pointerleave = {
+	eventInterface: "PointerEvent",
+	bubbles: false,
+	cancelable: false
+};
+var pointerlockchange = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var pointerlockerror = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var pointermove = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: true
+};
+var pointerout = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: true
+};
+var pointerover = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: true
+};
+var pointerup = {
+	eventInterface: "PointerEvent",
+	bubbles: true,
+	cancelable: true
+};
+var play = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var playing = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var popstate = {
+	eventInterface: "PopStateEvent",
+	bubbles: true,
+	cancelable: false
+};
+var progress = {
+	eventInterface: "ProgressEvent",
+	bubbles: false,
+	cancelable: false
+};
+var push = {
+	eventInterface: "PushEvent",
+	bubbles: false,
+	cancelable: false
+};
+var pushsubscriptionchange = {
+	eventInterface: "PushEvent",
+	bubbles: false,
+	cancelable: false
+};
+var ratechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var readystatechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var repeatEvent = {
+	eventInterface: "TimeEvent",
+	bubbles: false,
+	cancelable: false
+};
+var reset = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: true
+};
+var resize = {
+	eventInterface: "UIEvent",
+	bubbles: false,
+	cancelable: false
+};
+var resourcetimingbufferfull = {
+	eventInterface: "Performance",
+	bubbles: true,
+	cancelable: true
+};
+var result = {
+	eventInterface: "SpeechRecognitionEvent",
+	bubbles: false,
+	cancelable: false
+};
+var resume = {
+	eventInterface: "SpeechSynthesisEvent",
+	bubbles: false,
+	cancelable: false
+};
+var scroll = {
+	eventInterface: "UIEvent",
+	bubbles: false,
+	cancelable: false
+};
+var seeked = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var seeking = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var select = {
+	eventInterface: "UIEvent",
+	bubbles: true,
+	cancelable: false
+};
+var selectstart = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: true
+};
+var selectionchange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var show = {
+	eventInterface: "MouseEvent",
+	bubbles: false,
+	cancelable: false
+};
+var slotchange = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var soundend = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var soundstart = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var speechend = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var speechstart = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var stalled = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var start = {
+	eventInterface: "SpeechSynthesisEvent",
+	bubbles: false,
+	cancelable: false
+};
+var storage = {
+	eventInterface: "StorageEvent",
+	bubbles: false,
+	cancelable: false
+};
+var submit = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: true
+};
+var success = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var suspend = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var SVGAbort = {
+	eventInterface: "SVGEvent",
+	bubbles: true,
+	cancelable: false
+};
+var SVGError = {
+	eventInterface: "SVGEvent",
+	bubbles: true,
+	cancelable: false
+};
+var SVGLoad = {
+	eventInterface: "SVGEvent",
+	bubbles: false,
+	cancelable: false
+};
+var SVGResize = {
+	eventInterface: "SVGEvent",
+	bubbles: true,
+	cancelable: false
+};
+var SVGScroll = {
+	eventInterface: "SVGEvent",
+	bubbles: true,
+	cancelable: false
+};
+var SVGUnload = {
+	eventInterface: "SVGEvent",
+	bubbles: false,
+	cancelable: false
+};
+var SVGZoom = {
+	eventInterface: "SVGZoomEvent",
+	bubbles: true,
+	cancelable: false
+};
+var timeout = {
+	eventInterface: "ProgressEvent",
+	bubbles: false,
+	cancelable: false
+};
+var timeupdate = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var touchcancel = {
+	eventInterface: "TouchEvent",
+	bubbles: true,
+	cancelable: false
+};
+var touchend = {
+	eventInterface: "TouchEvent",
+	bubbles: true,
+	cancelable: true
+};
+var touchmove = {
+	eventInterface: "TouchEvent",
+	bubbles: true,
+	cancelable: true
+};
+var touchstart = {
+	eventInterface: "TouchEvent",
+	bubbles: true,
+	cancelable: true
+};
+var transitionend = {
+	eventInterface: "TransitionEvent",
+	bubbles: true,
+	cancelable: true
+};
+var unload = {
+	eventInterface: "UIEvent",
+	bubbles: false
+};
+var updateready = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var userproximity = {
+	eventInterface: "UserProximityEvent",
+	bubbles: false,
+	cancelable: false
+};
+var voiceschanged = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var visibilitychange = {
+	eventInterface: "Event",
+	bubbles: true,
+	cancelable: false
+};
+var volumechange = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var waiting = {
+	eventInterface: "Event",
+	bubbles: false,
+	cancelable: false
+};
+var wheel = {
+	eventInterface: "WheelEvent",
+	bubbles: true,
+	cancelable: true
+};
+var domEventTypes = {
+	abort: abort,
+	afterprint: afterprint,
+	animationend: animationend,
+	animationiteration: animationiteration,
+	animationstart: animationstart,
+	appinstalled: appinstalled,
+	audioprocess: audioprocess,
+	audioend: audioend,
+	audiostart: audiostart,
+	beforeprint: beforeprint,
+	beforeunload: beforeunload,
+	beginEvent: beginEvent,
+	blur: blur,
+	boundary: boundary,
+	cached: cached,
+	canplay: canplay,
+	canplaythrough: canplaythrough,
+	change: change,
+	chargingchange: chargingchange,
+	chargingtimechange: chargingtimechange,
+	checking: checking,
+	click: click,
+	close: close,
+	complete: complete,
+	compositionend: compositionend,
+	compositionstart: compositionstart,
+	compositionupdate: compositionupdate,
+	contextmenu: contextmenu,
+	copy: copy,
+	cut: cut,
+	dblclick: dblclick,
+	devicechange: devicechange,
+	devicelight: devicelight,
+	devicemotion: devicemotion,
+	deviceorientation: deviceorientation,
+	deviceproximity: deviceproximity,
+	dischargingtimechange: dischargingtimechange,
+	DOMActivate: DOMActivate,
+	DOMAttributeNameChanged: DOMAttributeNameChanged,
+	DOMAttrModified: DOMAttrModified,
+	DOMCharacterDataModified: DOMCharacterDataModified,
+	DOMContentLoaded: DOMContentLoaded,
+	DOMElementNameChanged: DOMElementNameChanged,
+	DOMFocusIn: DOMFocusIn,
+	DOMFocusOut: DOMFocusOut,
+	DOMNodeInserted: DOMNodeInserted,
+	DOMNodeInsertedIntoDocument: DOMNodeInsertedIntoDocument,
+	DOMNodeRemoved: DOMNodeRemoved,
+	DOMNodeRemovedFromDocument: DOMNodeRemovedFromDocument,
+	DOMSubtreeModified: DOMSubtreeModified,
+	downloading: downloading,
+	drag: drag,
+	dragend: dragend,
+	dragenter: dragenter,
+	dragleave: dragleave,
+	dragover: dragover,
+	dragstart: dragstart,
+	drop: drop,
+	durationchange: durationchange,
+	emptied: emptied,
+	end: end,
+	ended: ended,
+	endEvent: endEvent,
+	error: error,
+	focus: focus,
+	focusin: focusin,
+	focusout: focusout,
+	fullscreenchange: fullscreenchange,
+	fullscreenerror: fullscreenerror,
+	gamepadconnected: gamepadconnected,
+	gamepaddisconnected: gamepaddisconnected,
+	gotpointercapture: gotpointercapture,
+	hashchange: hashchange,
+	lostpointercapture: lostpointercapture,
+	input: input,
+	invalid: invalid,
+	keydown: keydown,
+	keypress: keypress,
+	keyup: keyup,
+	languagechange: languagechange,
+	levelchange: levelchange,
+	load: load,
+	loadeddata: loadeddata,
+	loadedmetadata: loadedmetadata,
+	loadend: loadend,
+	loadstart: loadstart,
+	mark: mark,
+	message: message,
+	messageerror: messageerror,
+	mousedown: mousedown,
+	mouseenter: mouseenter,
+	mouseleave: mouseleave,
+	mousemove: mousemove,
+	mouseout: mouseout,
+	mouseover: mouseover,
+	mouseup: mouseup,
+	nomatch: nomatch,
+	notificationclick: notificationclick,
+	noupdate: noupdate,
+	obsolete: obsolete,
+	offline: offline,
+	online: online,
+	open: open,
+	orientationchange: orientationchange,
+	pagehide: pagehide,
+	pageshow: pageshow,
+	paste: paste,
+	pause: pause,
+	pointercancel: pointercancel,
+	pointerdown: pointerdown,
+	pointerenter: pointerenter,
+	pointerleave: pointerleave,
+	pointerlockchange: pointerlockchange,
+	pointerlockerror: pointerlockerror,
+	pointermove: pointermove,
+	pointerout: pointerout,
+	pointerover: pointerover,
+	pointerup: pointerup,
+	play: play,
+	playing: playing,
+	popstate: popstate,
+	progress: progress,
+	push: push,
+	pushsubscriptionchange: pushsubscriptionchange,
+	ratechange: ratechange,
+	readystatechange: readystatechange,
+	repeatEvent: repeatEvent,
+	reset: reset,
+	resize: resize,
+	resourcetimingbufferfull: resourcetimingbufferfull,
+	result: result,
+	resume: resume,
+	scroll: scroll,
+	seeked: seeked,
+	seeking: seeking,
+	select: select,
+	selectstart: selectstart,
+	selectionchange: selectionchange,
+	show: show,
+	slotchange: slotchange,
+	soundend: soundend,
+	soundstart: soundstart,
+	speechend: speechend,
+	speechstart: speechstart,
+	stalled: stalled,
+	start: start,
+	storage: storage,
+	submit: submit,
+	success: success,
+	suspend: suspend,
+	SVGAbort: SVGAbort,
+	SVGError: SVGError,
+	SVGLoad: SVGLoad,
+	SVGResize: SVGResize,
+	SVGScroll: SVGScroll,
+	SVGUnload: SVGUnload,
+	SVGZoom: SVGZoom,
+	timeout: timeout,
+	timeupdate: timeupdate,
+	touchcancel: touchcancel,
+	touchend: touchend,
+	touchmove: touchmove,
+	touchstart: touchstart,
+	transitionend: transitionend,
+	unload: unload,
+	updateready: updateready,
+	userproximity: userproximity,
+	voiceschanged: voiceschanged,
+	visibilitychange: visibilitychange,
+	volumechange: volumechange,
+	waiting: waiting,
+	wheel: wheel
+};
+
+var domEventTypes$1 = /*#__PURE__*/Object.freeze({
+  __proto__: null,
+  abort: abort,
+  afterprint: afterprint,
+  animationend: animationend,
+  animationiteration: animationiteration,
+  animationstart: animationstart,
+  appinstalled: appinstalled,
+  audioprocess: audioprocess,
+  audioend: audioend,
+  audiostart: audiostart,
+  beforeprint: beforeprint,
+  beforeunload: beforeunload,
+  beginEvent: beginEvent,
+  blur: blur,
+  boundary: boundary,
+  cached: cached,
+  canplay: canplay,
+  canplaythrough: canplaythrough,
+  change: change,
+  chargingchange: chargingchange,
+  chargingtimechange: chargingtimechange,
+  checking: checking,
+  click: click,
+  close: close,
+  complete: complete,
+  compositionend: compositionend,
+  compositionstart: compositionstart,
+  compositionupdate: compositionupdate,
+  contextmenu: contextmenu,
+  copy: copy,
+  cut: cut,
+  dblclick: dblclick,
+  devicechange: devicechange,
+  devicelight: devicelight,
+  devicemotion: devicemotion,
+  deviceorientation: deviceorientation,
+  deviceproximity: deviceproximity,
+  dischargingtimechange: dischargingtimechange,
+  DOMActivate: DOMActivate,
+  DOMAttributeNameChanged: DOMAttributeNameChanged,
+  DOMAttrModified: DOMAttrModified,
+  DOMCharacterDataModified: DOMCharacterDataModified,
+  DOMContentLoaded: DOMContentLoaded,
+  DOMElementNameChanged: DOMElementNameChanged,
+  DOMFocusIn: DOMFocusIn,
+  DOMFocusOut: DOMFocusOut,
+  DOMNodeInserted: DOMNodeInserted,
+  DOMNodeInsertedIntoDocument: DOMNodeInsertedIntoDocument,
+  DOMNodeRemoved: DOMNodeRemoved,
+  DOMNodeRemovedFromDocument: DOMNodeRemovedFromDocument,
+  DOMSubtreeModified: DOMSubtreeModified,
+  downloading: downloading,
+  drag: drag,
+  dragend: dragend,
+  dragenter: dragenter,
+  dragleave: dragleave,
+  dragover: dragover,
+  dragstart: dragstart,
+  drop: drop,
+  durationchange: durationchange,
+  emptied: emptied,
+  end: end,
+  ended: ended,
+  endEvent: endEvent,
+  error: error,
+  focus: focus,
+  focusin: focusin,
+  focusout: focusout,
+  fullscreenchange: fullscreenchange,
+  fullscreenerror: fullscreenerror,
+  gamepadconnected: gamepadconnected,
+  gamepaddisconnected: gamepaddisconnected,
+  gotpointercapture: gotpointercapture,
+  hashchange: hashchange,
+  lostpointercapture: lostpointercapture,
+  input: input,
+  invalid: invalid,
+  keydown: keydown,
+  keypress: keypress,
+  keyup: keyup,
+  languagechange: languagechange,
+  levelchange: levelchange,
+  load: load,
+  loadeddata: loadeddata,
+  loadedmetadata: loadedmetadata,
+  loadend: loadend,
+  loadstart: loadstart,
+  mark: mark,
+  message: message,
+  messageerror: messageerror,
+  mousedown: mousedown,
+  mouseenter: mouseenter,
+  mouseleave: mouseleave,
+  mousemove: mousemove,
+  mouseout: mouseout,
+  mouseover: mouseover,
+  mouseup: mouseup,
+  nomatch: nomatch,
+  notificationclick: notificationclick,
+  noupdate: noupdate,
+  obsolete: obsolete,
+  offline: offline,
+  online: online,
+  open: open,
+  orientationchange: orientationchange,
+  pagehide: pagehide,
+  pageshow: pageshow,
+  paste: paste,
+  pause: pause,
+  pointercancel: pointercancel,
+  pointerdown: pointerdown,
+  pointerenter: pointerenter,
+  pointerleave: pointerleave,
+  pointerlockchange: pointerlockchange,
+  pointerlockerror: pointerlockerror,
+  pointermove: pointermove,
+  pointerout: pointerout,
+  pointerover: pointerover,
+  pointerup: pointerup,
+  play: play,
+  playing: playing,
+  popstate: popstate,
+  progress: progress,
+  push: push,
+  pushsubscriptionchange: pushsubscriptionchange,
+  ratechange: ratechange,
+  readystatechange: readystatechange,
+  repeatEvent: repeatEvent,
+  reset: reset,
+  resize: resize,
+  resourcetimingbufferfull: resourcetimingbufferfull,
+  result: result,
+  resume: resume,
+  scroll: scroll,
+  seeked: seeked,
+  seeking: seeking,
+  select: select,
+  selectstart: selectstart,
+  selectionchange: selectionchange,
+  show: show,
+  slotchange: slotchange,
+  soundend: soundend,
+  soundstart: soundstart,
+  speechend: speechend,
+  speechstart: speechstart,
+  stalled: stalled,
+  start: start,
+  storage: storage,
+  submit: submit,
+  success: success,
+  suspend: suspend,
+  SVGAbort: SVGAbort,
+  SVGError: SVGError,
+  SVGLoad: SVGLoad,
+  SVGResize: SVGResize,
+  SVGScroll: SVGScroll,
+  SVGUnload: SVGUnload,
+  SVGZoom: SVGZoom,
+  timeout: timeout,
+  timeupdate: timeupdate,
+  touchcancel: touchcancel,
+  touchend: touchend,
+  touchmove: touchmove,
+  touchstart: touchstart,
+  transitionend: transitionend,
+  unload: unload,
+  updateready: updateready,
+  userproximity: userproximity,
+  voiceschanged: voiceschanged,
+  visibilitychange: visibilitychange,
+  volumechange: volumechange,
+  waiting: waiting,
+  wheel: wheel,
+  'default': domEventTypes
+});
+
+var require$$0 = getCjsExportFromNamespace(domEventTypes$1);
+
+var domEventTypes$2 = require$$0;
+
+var defaultEventType = {
+  eventInterface: 'Event',
+  cancelable: true,
+  bubbles: true
+};
+
+var modifiers = {
+  enter: 13,
+  tab: 9,
+  delete: 46,
+  esc: 27,
+  space: 32,
+  up: 38,
+  down: 40,
+  left: 37,
+  right: 39,
+  end: 35,
+  home: 36,
+  backspace: 8,
+  insert: 45,
+  pageup: 33,
+  pagedown: 34
+};
+
+// get from https://github.com/ashubham/w3c-keys/blob/master/index.ts
+var w3cKeys = {
+  enter: 'Enter',
+  tab: 'Tab',
+  delete: 'Delete',
+  esc: 'Esc',
+  escape: 'Escape',
+  space: ' ',
+  up: 'Up',
+  left: 'Left',
+  right: 'Right',
+  down: 'Down',
+  end: 'End',
+  home: 'Home',
+  backspace: 'Backspace',
+  insert: 'Insert',
+  pageup: 'PageUp',
+  pagedown: 'PageDown'
+};
+
+var codeToKeyNameMap = Object.entries(modifiers).reduce(
+  function (acc, ref) {
+    var obj;
+
+    var key = ref[0];
+    var value = ref[1];
+    return Object.assign(acc, ( obj = {}, obj[value] = w3cKeys[key], obj ));
+},
+  {}
+);
+
+function getOptions(eventParams) {
+  var modifier = eventParams.modifier;
+  var meta = eventParams.meta;
+  var options = eventParams.options;
+  var keyCode = modifiers[modifier] || options.keyCode || options.code;
+  var key = codeToKeyNameMap[keyCode];
+
+  return Object.assign({}, options, // What the user passed in as the second argument to #trigger
+
+    {bubbles: meta.bubbles,
+    cancelable: meta.cancelable,
+
+    // Any derived options should go here
+    keyCode: keyCode,
+    code: keyCode,
+    key: key || options.key})
+}
+
+function createEvent(eventParams) {
+  var eventType = eventParams.eventType;
+  var meta = eventParams.meta; if ( meta === void 0 ) meta = {};
+
+  var SupportedEventInterface =
+    typeof window[meta.eventInterface] === 'function'
+      ? window[meta.eventInterface]
+      : window.Event;
+
+  var event = new SupportedEventInterface(
+    eventType,
+    // event properties can only be added when the event is instantiated
+    // custom properties must be added after the event has been instantiated
+    getOptions(eventParams)
+  );
+
+  return event
+}
+
+function createOldEvent(eventParams) {
+  var eventType = eventParams.eventType;
+  var modifier = eventParams.modifier;
+  var meta = eventParams.meta;
+  var bubbles = meta.bubbles;
+  var cancelable = meta.cancelable;
+
+  var event = document.createEvent('Event');
+  event.initEvent(eventType, bubbles, cancelable);
+  event.keyCode = modifiers[modifier];
+  return event
+}
+
+function createDOMEvent(type, options) {
+  var ref = type.split('.');
+  var eventType = ref[0];
+  var modifier = ref[1];
+  var meta = domEventTypes$2[eventType] || defaultEventType;
+
+  var eventParams = { eventType: eventType, modifier: modifier, meta: meta, options: options };
+
+  // Fallback for IE10,11 - https://stackoverflow.com/questions/26596123
+  var event =
+    typeof window.Event === 'function'
+      ? createEvent(eventParams)
+      : createOldEvent(eventParams);
+
+  var eventPrototype = Object.getPrototypeOf(event);
+  Object.keys(options || {}).forEach(function (key) {
+    var propertyDescriptor = Object.getOwnPropertyDescriptor(
+      eventPrototype,
+      key
+    );
+
+    var canSetProperty = !(
+      propertyDescriptor && propertyDescriptor.setter === undefined
+    );
+    if (canSetProperty) {
+      event[key] = options[key];
+    }
+  });
+
+  return event
+}
+
+// 
+
+var Wrapper = function Wrapper(
+  node,
+  options,
+  isVueWrapper
+) {
+  var vnode = node instanceof Element ? null : node;
+  var element = node instanceof Element ? node : node.elm;
+  // Prevent redefine by VueWrapper
+  if (!isVueWrapper) {
+    // $FlowIgnore : issue with defineProperty
+    Object.defineProperty(this, 'rootNode', {
+      get: function () { return vnode || element; },
+      set: function () { return throwError('wrapper.rootNode is read-only'); }
+    });
+    // $FlowIgnore
+    Object.defineProperty(this, 'vnode', {
+      get: function () { return vnode; },
+      set: function () { return throwError('wrapper.vnode is read-only'); }
+    });
+    // $FlowIgnore
+    Object.defineProperty(this, 'element', {
+      get: function () { return element; },
+      set: function () { return throwError('wrapper.element is read-only'); }
+    });
+    // $FlowIgnore
+    Object.defineProperty(this, 'vm', {
+      get: function () { return undefined; },
+      set: function () { return throwError('wrapper.vm is read-only'); }
+    });
+  }
+  var frozenOptions = Object.freeze(options);
+  // $FlowIgnore
+  Object.defineProperty(this, 'options', {
+    get: function () { return frozenOptions; },
+    set: function () { return throwError('wrapper.options is read-only'); }
+  });
+  if (
+    this.vnode &&
+    (this.vnode[FUNCTIONAL_OPTIONS] || this.vnode.functionalContext)
+  ) {
+    this.isFunctionalComponent = true;
+  }
+};
+
+/**
+ * Prints warning if component is destroyed
+ */
+Wrapper.prototype.__warnIfDestroyed = function __warnIfDestroyed () {
+  if (!this.exists()) {
+    warn('Operations on destroyed component are discouraged');
+  }
+};
+
+Wrapper.prototype.at = function at () {
+  this.__warnIfDestroyed();
+
+  throwError('at() must be called on a WrapperArray');
+};
+
+/**
+ * Returns an Object containing all the attribute/value pairs on the element.
+ */
+Wrapper.prototype.attributes = function attributes (key) {
+  this.__warnIfDestroyed();
+
+  var attributes = this.element.attributes;
+  var attributeMap = {};
+  for (var i = 0; i < attributes.length; i++) {
+    var att = attributes.item(i);
+    attributeMap[att.localName] = att.value;
+  }
+
+  return key ? attributeMap[key] : attributeMap
+};
+
+/**
+ * Returns an Array containing all the classes on the element
+ */
+Wrapper.prototype.classes = function classes (className) {
+    var this$1 = this;
+
+  this.__warnIfDestroyed();
+
+  var classAttribute = this.element.getAttribute('class');
+  var classes = classAttribute ? classAttribute.split(' ') : [];
+  // Handle converting cssmodules identifiers back to the original class name
+  if (this.vm && this.vm.$style) {
+    var cssModuleIdentifiers = Object.keys(this.vm.$style).reduce(
+      function (acc, key) {
+        // $FlowIgnore
+        var moduleIdent = this$1.vm.$style[key];
+        if (moduleIdent) {
+          acc[moduleIdent.split(' ')[0]] = key;
+        }
+        return acc
+      },
+      {}
+    );
+    classes = classes.map(function (name) { return cssModuleIdentifiers[name] || name; });
+  }
+
+  return className ? !!(classes.indexOf(className) > -1) : classes
+};
+
+/**
+ * Checks if wrapper contains provided selector.
+ * @deprecated
+ */
+Wrapper.prototype.contains = function contains (rawSelector) {
+  warnDeprecated(
+    'contains',
+    'Use `wrapper.find`, `wrapper.findComponent` or `wrapper.get` instead'
+  );
+
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'contains');
+  var nodes = find(this.rootNode, this.vm, selector);
+  return nodes.length > 0
+};
+
+/**
+ * Calls destroy on vm
+ */
+Wrapper.prototype.destroy = function destroy () {
+  if (!this.vm && !this.isFunctionalComponent) {
+    throwError(
+      "wrapper.destroy() can only be called on a Vue instance or " +
+        "functional component."
+    );
+  }
+
+  if (this.element.parentNode) {
+    this.element.parentNode.removeChild(this.element);
+  }
+
+  if (this.vm) {
+    // $FlowIgnore
+    this.vm.$destroy();
+    throwIfInstancesThrew(this.vm);
+  }
+};
+
+/**
+ * Returns an object containing custom events emitted by the Wrapper vm
+ */
+Wrapper.prototype.emitted = function emitted (
+  event
+) {
+  if (!this._emitted && !this.vm) {
+    throwError("wrapper.emitted() can only be called on a Vue instance");
+  }
+  if (event) {
+    return this._emitted[event]
+  }
+  return this._emitted
+};
+
+/**
+ * Returns an Array containing custom events emitted by the Wrapper vm
+ * @deprecated
+ */
+Wrapper.prototype.emittedByOrder = function emittedByOrder () {
+  warnDeprecated('emittedByOrder', 'Use `wrapper.emitted` instead');
+  if (!this._emittedByOrder && !this.vm) {
+    throwError(
+      "wrapper.emittedByOrder() can only be called on a Vue instance"
+    );
+  }
+  return this._emittedByOrder
+};
+
+/**
+ * Utility to check wrapper exists.
+ */
+Wrapper.prototype.exists = function exists () {
+  if (this.vm) {
+    return !!this.vm && !this.vm._isDestroyed
+  }
+  return true
+};
+
+Wrapper.prototype.filter = function filter () {
+  throwError('filter() must be called on a WrapperArray');
+};
+
+/**
+ * Gets first node in tree of the current wrapper that
+ * matches the provided selector.
+ */
+Wrapper.prototype.get = function get (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var found = this.find(rawSelector);
+  if (found instanceof ErrorWrapper) {
+    throw new Error(("Unable to find " + rawSelector + " within: " + (this.html())))
+  }
+  return found
+};
+
+/**
+ * Gets first node in tree of the current wrapper that
+ * matches the provided selector.
+ */
+Wrapper.prototype.getComponent = function getComponent (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var found = this.findComponent(rawSelector);
+  if (found instanceof ErrorWrapper) {
+    throw new Error(("Unable to get " + rawSelector + " within: " + (this.html())))
+  }
+  return found
+};
+
+/**
+ * Finds first DOM node in tree of the current wrapper that
+ * matches the provided selector.
+ */
+Wrapper.prototype.find = function find (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'find');
+  if (selector.type !== DOM_SELECTOR) {
+    warnDeprecated(
+      'finding components with `find` or `get`',
+      'Use `findComponent` and `getComponent` instead'
+    );
+  }
+
+  return this.__find(rawSelector, selector)
+};
+
+/**
+ * Finds first component in tree of the current wrapper that
+ * matches the provided selector.
+ */
+Wrapper.prototype.findComponent = function findComponent (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'findComponent');
+
+  return this.__find(rawSelector, selector)
+};
+
+Wrapper.prototype.__find = function __find (rawSelector, selector) {
+  var node = find(this.rootNode, this.vm, selector)[0];
+
+  if (!node) {
+    return new ErrorWrapper(rawSelector)
+  }
+
+  var wrapper = createWrapper(node, this.options);
+  wrapper.selector = rawSelector;
+  return wrapper
+};
+
+/**
+ * Finds DOM elements in tree of the current wrapper that matches
+ * the provided selector.
+ */
+Wrapper.prototype.findAll = function findAll (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'findAll');
+  if (selector.type !== DOM_SELECTOR) {
+    warnDeprecated(
+      'finding components with `findAll`',
+      'Use `findAllComponents` instead'
+    );
+  }
+  return this.__findAll(rawSelector, selector)
+};
+
+/**
+ * Finds components in tree of the current wrapper that matches
+ * the provided selector.
+ */
+Wrapper.prototype.findAllComponents = function findAllComponents (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'findAll');
+
+  return this.__findAll(rawSelector, selector, isVueWrapper)
+};
+
+Wrapper.prototype.__findAll = function __findAll (
+  rawSelector,
+  selector,
+  filterFn
+) {
+    var this$1 = this;
+    if ( filterFn === void 0 ) filterFn = function () { return true; };
+
+  var nodes = find(this.rootNode, this.vm, selector);
+  var wrappers = nodes
+    .map(function (node) {
+      // Using CSS Selector, returns a VueWrapper instance if the root element
+      // binds a Vue instance.
+      var wrapper = createWrapper(node, this$1.options);
+      wrapper.selector = rawSelector;
+      return wrapper
+    })
+    .filter(filterFn);
+
+  var wrapperArray = new WrapperArray(wrappers);
+  wrapperArray.selector = rawSelector;
+  return wrapperArray
+};
+
+/**
+ * Returns HTML of element as a string
+ */
+Wrapper.prototype.html = function html () {
+  this.__warnIfDestroyed();
+
+  return pretty(this.element.outerHTML)
+};
+
+/**
+ * Checks if node matches selector or component definition
+ */
+Wrapper.prototype.is = function is (rawSelector) {
+  this.__warnIfDestroyed();
+
+  var selector = getSelector(rawSelector, 'is');
+
+  if (selector.type === DOM_SELECTOR) {
+    warnDeprecated(
+      'checking tag name with `is`',
+      'Use `element.tagName` instead'
+    );
+  }
+
+  if (selector.type === REF_SELECTOR) {
+    throwError('$ref selectors can not be used with wrapper.is()');
+  }
+
+  return matches(this.rootNode, selector)
+};
+
+/**
+ * Checks if node is empty
+ * @deprecated
+ */
+Wrapper.prototype.isEmpty = function isEmpty () {
+  warnDeprecated(
+    'isEmpty',
+    'Consider a custom matcher such as those provided in jest-dom: https://github.com/testing-library/jest-dom#tobeempty. ' +
+      'When using with findComponent, access the DOM element with findComponent(Comp).element'
+  );
+  this.__warnIfDestroyed();
+
+  if (!this.vnode) {
+    return this.element.innerHTML === ''
+  }
+  var nodes = [];
+  var node = this.vnode;
+  var i = 0;
+
+  while (node) {
+    if (node.child) {
+      nodes.push(node.child._vnode);
+    }
+    node.children &&
+      node.children.forEach(function (n) {
+        nodes.push(n);
+      });
+    node = nodes[i++];
+  }
+  return nodes.every(function (n) { return n.isComment || n.child; })
+};
+
+/**
+ * Checks if node is visible
+ */
+Wrapper.prototype.isVisible = function isVisible () {
+  this.__warnIfDestroyed();
+
+  return isElementVisible(this.element)
+};
+
+/**
+ * Checks if wrapper is a vue instance
+ * @deprecated
+ */
+Wrapper.prototype.isVueInstance = function isVueInstance () {
+  warnDeprecated("isVueInstance");
+  this.__warnIfDestroyed();
+
+  return !!this.vm
+};
+
+/**
+ * Returns name of component, or tag name if node is not a Vue component
+ * @deprecated
+ */
+Wrapper.prototype.name = function name () {
+  warnDeprecated("name");
+  this.__warnIfDestroyed();
+
+  if (this.vm) {
+    return (
+      this.vm.$options.name ||
+      // compat for Vue < 2.3
+      (this.vm.$options.extendOptions && this.vm.$options.extendOptions.name)
+    )
+  }
+
+  if (!this.vnode) {
+    return this.element.tagName
+  }
+
+  return this.vnode.tag
+};
+
+/**
+ * Prints a simple overview of the wrapper current state
+ * with useful information for debugging
+ * @deprecated
+ */
+Wrapper.prototype.overview = function overview () {
+    var this$1 = this;
+
+  warnDeprecated("overview");
+  this.__warnIfDestroyed();
+
+  if (!this.vm) {
+    throwError("wrapper.overview() can only be called on a Vue instance");
+  }
+
+  var identation = 4;
+  var formatJSON = function (json, replacer) {
+        if ( replacer === void 0 ) replacer = null;
+
+        return JSON.stringify(json, replacer, identation).replace(/"/g, '');
+    };
+
+  var visibility = this.isVisible() ? 'Visible' : 'Not visible';
+
+  var html = this.html()
+    ? this.html().replace(/^(?!\s*$)/gm, ' '.repeat(identation)) + '\n'
+    : '';
+
+  // $FlowIgnore
+  var data = formatJSON(this.vm.$data);
+
+  /* eslint-disable operator-linebreak */
+  // $FlowIgnore
+  var computed = this.vm._computedWatchers
+    ? formatJSON.apply(
+        // $FlowIgnore
+        void 0, Object.keys(this.vm._computedWatchers).map(function (computedKey) {
+            var obj;
+
+            return (( obj = {}, obj[computedKey] = this$1.vm[computedKey], obj ));
+    })
+      )
+    : // $FlowIgnore
+    this.vm.$options.computed
+    ? formatJSON.apply(
+        // $FlowIgnore
+        void 0, Object.entries(this.vm.$options.computed).map(function (ref) {
+            var obj;
+
+            var key = ref[0];
+            var value = ref[1];
+            return (( obj = {}, obj[key] = value(), obj ));
+    })
+      )
+    : '{}';
+  /* eslint-enable operator-linebreak */
+
+  var emittedJSONReplacer = function (key, value) { return value instanceof Array
+      ? value.map(function (calledWith, index) {
+          var callParams = calledWith.map(function (param) { return typeof param === 'object'
+              ? JSON.stringify(param)
+                  .replace(/"/g, '')
+                  .replace(/,/g, ', ')
+              : param; }
+          );
+
+          return (index + ": [ " + (callParams.join(', ')) + " ]")
+        })
+      : value; };
+
+  var emitted = formatJSON(this.emitted(), emittedJSONReplacer);
+
+  console.log(
+    '\n' +
+      "Wrapper (" + visibility + "):\n\n" +
+      "Html:\n" + html + "\n" +
+      "Data: " + data + "\n\n" +
+      "Computed: " + computed + "\n\n" +
+      "Emitted: " + emitted + "\n"
+  );
+};
+
+/**
+ * Returns an Object containing the prop name/value pairs on the element
+ */
+Wrapper.prototype.props = function props (key) {
+    var this$1 = this;
+
+  if (this.isFunctionalComponent) {
+    throwError(
+      "wrapper.props() cannot be called on a mounted functional component."
+    );
+  }
+  if (!this.vm) {
+    throwError('wrapper.props() must be called on a Vue instance');
+  }
+  this.__warnIfDestroyed();
+
+  var props = {};
+  var keys = this.vm && this.vm.$options._propKeys;
+
+  if (keys) {
+(keys || {}).forEach(function (key) {
+      if (this$1.vm) {
+        props[key] = this$1.vm[key];
+      }
+    });
+  }
+
+  if (key) {
+    return props[key]
+  }
+
+  return props
+};
+
+/**
+ * Checks radio button or checkbox element
+ * @deprecated
+ */
+Wrapper.prototype.setChecked = function setChecked (checked) {
+    if ( checked === void 0 ) checked = true;
+
+  this.__warnIfDestroyed();
+
+  if (typeof checked !== 'boolean') {
+    throwError('wrapper.setChecked() must be passed a boolean');
+  }
+  var tagName = this.element.tagName;
+  // $FlowIgnore
+  var type = this.attributes().type;
+  var event = getCheckedEvent();
+
+  if (tagName === 'INPUT' && type === 'checkbox') {
+    // $FlowIgnore
+    if (this.element.checked === checked) {
+      return nextTick()
+    }
+    if (event !== 'click' || isPhantomJS) {
+      // $FlowIgnore
+      this.element.checked = checked;
+    }
+    return this.trigger(event)
+  }
+
+  if (tagName === 'INPUT' && type === 'radio') {
+    if (!checked) {
+      throwError(
+        "wrapper.setChecked() cannot be called with parameter false on a " +
+          "<input type=\"radio\" /> element."
+      );
+    }
+
+    // $FlowIgnore
+    if (this.element.checked === checked) {
+      return nextTick()
+    }
+
+    if (event !== 'click' || isPhantomJS) {
+      // $FlowIgnore
+      this.element.selected = true;
+    }
+    return this.trigger(event)
+  }
+
+  throwError("wrapper.setChecked() cannot be called on this element");
+  return nextTick()
+};
+
+/**
+ * Selects <option></option> element
+ * @deprecated
+ */
+Wrapper.prototype.setSelected = function setSelected () {
+  this.__warnIfDestroyed();
+
+  var tagName = this.element.tagName;
+
+  if (tagName === 'SELECT') {
+    throwError(
+      "wrapper.setSelected() cannot be called on select. Call it on one of " +
+        "its options"
+    );
+  }
+
+  if (tagName !== 'OPTION') {
+    throwError("wrapper.setSelected() cannot be called on this element");
+  }
+
+  // $FlowIgnore
+  if (this.element.selected) {
+    return nextTick()
+  }
+
+  // $FlowIgnore
+  this.element.selected = true;
+  // $FlowIgnore
+  var parentElement = this.element.parentElement;
+
+  // $FlowIgnore
+  if (parentElement.tagName === 'OPTGROUP') {
+    // $FlowIgnore
+    parentElement = parentElement.parentElement;
+  }
+
+  // $FlowIgnore
+  return createWrapper(parentElement, this.options).trigger('change')
+};
+
+/**
+ * Sets vm data
+ */
+Wrapper.prototype.setData = function setData (data) {
+  if (this.isFunctionalComponent) {
+    throwError("wrapper.setData() cannot be called on a functional component");
+  }
+
+  if (!this.vm) {
+    throwError("wrapper.setData() can only be called on a Vue instance");
+  }
+
+  this.__warnIfDestroyed();
+
+  recursivelySetData(this.vm, this.vm, data);
+  return nextTick()
+};
+
+/**
+ * Sets vm methods
+ * @deprecated
+ */
+Wrapper.prototype.setMethods = function setMethods (methods) {
+    var this$1 = this;
+
+  warnDeprecated(
+    "setMethods",
+    "There is no clear migration path for setMethods - Vue does not support arbitrarily replacement of methods, nor should VTU. To stub a complex method extract it from the component and test it in isolation. Otherwise, the suggestion is to rethink those tests"
+  );
+
+  if (!this.vm) {
+    throwError("wrapper.setMethods() can only be called on a Vue instance");
+  }
+  this.__warnIfDestroyed();
+
+  Object.keys(methods).forEach(function (key) {
+    // $FlowIgnore : Problem with possibly null this.vm
+    this$1.vm[key] = methods[key];
+    // $FlowIgnore : Problem with possibly null this.vm
+    this$1.vm.$options.methods[key] = methods[key];
+  });
+
+  if (this.vnode) {
+    var context = this.vnode.context;
+    if (context.$options.render) { context._update(context._render()); }
+  }
+};
+
+/**
+ * Sets vm props
+ */
+Wrapper.prototype.setProps = function setProps (data) {
+    var this$1 = this;
+
+  // Validate the setProps method call
+  if (this.isFunctionalComponent) {
+    throwError(
+      "wrapper.setProps() cannot be called on a functional component"
+    );
+  }
+
+  if (!this.vm) {
+    throwError("wrapper.setProps() can only be called on a Vue instance");
+  }
+
+  // $FlowIgnore : Problem with possibly null this.vm
+  if (!this.vm.$parent.$options.$_isWrapperParent) {
+    throwError(
+      "wrapper.setProps() can only be called for top-level component"
+    );
+  }
+
+  this.__warnIfDestroyed();
+
+  Object.keys(data).forEach(function (key) {
+    // Don't let people set entire objects, because reactivity won't work
+    if (
+      typeof data[key] === 'object' &&
+      data[key] !== null &&
+      // $FlowIgnore : Problem with possibly null this.vm
+      data[key] === this$1.vm[key]
+    ) {
+      throwError(
+        "wrapper.setProps() called with the same object of the existing " +
+          key + " property. You must call wrapper.setProps() with a new " +
+          "object to trigger reactivity"
+      );
+    }
+
+    if (
+      VUE_VERSION <= 2.3 &&
+      (!this$1.vm ||
+        !this$1.vm.$options._propKeys ||
+        !this$1.vm.$options._propKeys.some(function (prop) { return prop === key; }))
+    ) {
+      throwError(
+        "wrapper.setProps() called with " + key + " property which " +
+          "is not defined on the component"
+      );
+    }
+
+    // $FlowIgnore : Problem with possibly null this.vm
+    var parent = this$1.vm.$parent;
+    parent.$set(parent.vueTestUtils_childProps, key, data[key]);
+  });
+
+  return nextTick()
+};
+
+/**
+ * Sets element value and triggers input event
+ */
+Wrapper.prototype.setValue = function setValue (value) {
+  var tagName = this.element.tagName;
+  // $FlowIgnore
+  var type = this.attributes().type;
+  this.__warnIfDestroyed();
+
+  if (tagName === 'OPTION') {
+    throwError(
+      "wrapper.setValue() cannot be called on an <option> element. Use " +
+        "wrapper.setSelected() instead"
+    );
+  } else if (tagName === 'INPUT' && type === 'checkbox') {
+    throwError(
+      "wrapper.setValue() cannot be called on a <input type=\"checkbox\" /> " +
+        "element. Use wrapper.setChecked() instead"
+    );
+  } else if (tagName === 'INPUT' && type === 'radio') {
+    throwError(
+      "wrapper.setValue() cannot be called on a <input type=\"radio\" /> " +
+        "element. Use wrapper.setChecked() instead"
+    );
+  } else if (tagName === 'SELECT') {
+    if (Array.isArray(value)) {
+      // $FlowIgnore
+      var options = this.element.options;
+      for (var i = 0; i < options.length; i++) {
+        var option = options[i];
+        option.selected = value.indexOf(option.value) >= 0;
+      }
+    } else {
+      // $FlowIgnore
+      this.element.value = value;
+    }
+
+    this.trigger('change');
+    return nextTick()
+  } else if (tagName === 'INPUT' || tagName === 'TEXTAREA') {
+    // $FlowIgnore
+    this.element.value = value;
+
+    this.trigger('input');
+
+    // for v-model.lazy, we need to trigger a change event, too.
+    // $FlowIgnore
+    if (this.element._vModifiers && this.element._vModifiers.lazy) {
+      this.trigger('change');
+    }
+    return nextTick()
+  }
+  throwError("wrapper.setValue() cannot be called on this element");
+  return nextTick()
+};
+
+/**
+ * Return text of wrapper element
+ */
+Wrapper.prototype.text = function text () {
+  this.__warnIfDestroyed();
+
+  return this.element.textContent.trim()
+};
+
+/**
+ * Simulates event triggering
+ */
+Wrapper.prototype.__simulateTrigger = function __simulateTrigger (type, options) {
+    var this$1 = this;
+
+  var regularEventTrigger = function (type, options) {
+    var event = createDOMEvent(type, options);
+    return this$1.element.dispatchEvent(event)
+  };
+
+  var focusEventTrigger = function (type, options) {
+    if (this$1.element instanceof HTMLElement) {
+      return this$1.element.focus()
+    }
+
+    regularEventTrigger(type, options);
+  };
+
+  var triggerProcedureMap = {
+    focus: focusEventTrigger,
+    __default: regularEventTrigger
+  };
+
+  var triggerFn = triggerProcedureMap[type] || triggerProcedureMap.__default;
+
+  return triggerFn(type, options)
+};
+
+/**
+ * Dispatches a DOM event on wrapper
+ */
+Wrapper.prototype.trigger = function trigger (type, options) {
+    if ( options === void 0 ) options = {};
+
+  this.__warnIfDestroyed();
+
+  if (typeof type !== 'string') {
+    throwError('wrapper.trigger() must be passed a string');
+  }
+
+  if (options.target) {
+    throwError(
+      "you cannot set the target value of an event. See the notes section " +
+        "of the docs for more details—" +
+        "https://vue-test-utils.vuejs.org/api/wrapper/trigger.html"
+    );
+  }
+
+  /**
+   * Avoids firing events on specific disabled elements
+   * See more: https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/disabled
+   */
+
+  var supportedTags = [
+    'BUTTON',
+    'COMMAND',
+    'FIELDSET',
+    'KEYGEN',
+    'OPTGROUP',
+    'OPTION',
+    'SELECT',
+    'TEXTAREA',
+    'INPUT'
+  ];
+  var tagName = this.element.tagName;
+
+  if (this.attributes().disabled && supportedTags.indexOf(tagName) > -1) {
+    return nextTick()
+  }
+
+  this.__simulateTrigger(type, options);
+  return nextTick()
+};
+
+// 
+
+var VueWrapper = /*@__PURE__*/(function (Wrapper) {
+  function VueWrapper(vm, options) {
+    var this$1 = this;
+
+    Wrapper.call(this, vm._vnode, options, true);
+    // $FlowIgnore : issue with defineProperty
+    Object.defineProperty(this, 'rootNode', {
+      get: function () { return vm.$vnode || { child: this$1.vm }; },
+      set: function () { return throwError('wrapper.vnode is read-only'); }
+    });
+    // $FlowIgnore : issue with defineProperty
+    Object.defineProperty(this, 'vnode', {
+      get: function () { return vm._vnode; },
+      set: function () { return throwError('wrapper.vnode is read-only'); }
+    });
+    // $FlowIgnore
+    Object.defineProperty(this, 'element', {
+      get: function () { return vm.$el; },
+      set: function () { return throwError('wrapper.element is read-only'); }
+    });
+    // $FlowIgnore
+    Object.defineProperty(this, 'vm', {
+      get: function () { return vm; },
+      set: function () { return throwError('wrapper.vm is read-only'); }
+    });
+    this.isFunctionalComponent = vm.$options._isFunctionalContainer;
+    this._emitted = vm.__emitted;
+    this._emittedByOrder = vm.__emittedByOrder;
+  }
+
+  if ( Wrapper ) VueWrapper.__proto__ = Wrapper;
+  VueWrapper.prototype = Object.create( Wrapper && Wrapper.prototype );
+  VueWrapper.prototype.constructor = VueWrapper;
+
+  return VueWrapper;
+}(Wrapper));
+
+// 
+
+var isEnabled = false;
+var wrapperInstances = [];
+
+function resetAutoDestroyState() {
+  isEnabled = false;
+  wrapperInstances.length = 0;
+}
+
+function enableAutoDestroy(hook) {
+  if (isEnabled) {
+    throwError('enableAutoDestroy cannot be called more than once');
+  }
+
+  isEnabled = true;
+
+  hook(function () {
+    wrapperInstances.forEach(function (wrapper) {
+      // skip child wrappers created by wrapper.find()
+      if (wrapper.vm || wrapper.isFunctionalComponent) {
+        wrapper.destroy();
+      }
+    });
+
+    wrapperInstances.length = 0;
+  });
+}
+
+function trackInstance(wrapper) {
+  if (!isEnabled) { return }
+
+  wrapperInstances.push(wrapper);
+}
+
+// 
+
+function createWrapper(
+  node,
+  options
+) {
+  if ( options === void 0 ) options = {};
+
+  var componentInstance = node.child;
+  if (componentInstance) {
+    var wrapper$1 = new VueWrapper(componentInstance, options);
+    trackInstance(wrapper$1);
+    return wrapper$1
+  }
+  var wrapper =
+    node instanceof Vue
+      ? new VueWrapper(node, options)
+      : new Wrapper(node, options);
+  trackInstance(wrapper);
+  return wrapper
+}
+
+/**
+ * Removes all key-value entries from the list cache.
+ *
+ * @private
+ * @name clear
+ * @memberOf ListCache
+ */
+function listCacheClear() {
+  this.__data__ = [];
+  this.size = 0;
+}
+
+var _listCacheClear = listCacheClear;
+
+/**
+ * Performs a
+ * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * comparison between two values to determine if they are equivalent.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ * @example
+ *
+ * var object = { 'a': 1 };
+ * var other = { 'a': 1 };
+ *
+ * _.eq(object, object);
+ * // => true
+ *
+ * _.eq(object, other);
+ * // => false
+ *
+ * _.eq('a', 'a');
+ * // => true
+ *
+ * _.eq('a', Object('a'));
+ * // => false
+ *
+ * _.eq(NaN, NaN);
+ * // => true
+ */
+function eq(value, other) {
+  return value === other || (value !== value && other !== other);
+}
+
+var eq_1 = eq;
+
+/**
+ * Gets the index at which the `key` is found in `array` of key-value pairs.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {*} key The key to search for.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+function assocIndexOf(array, key) {
+  var length = array.length;
+  while (length--) {
+    if (eq_1(array[length][0], key)) {
+      return length;
+    }
+  }
+  return -1;
+}
+
+var _assocIndexOf = assocIndexOf;
+
+/** Used for built-in method references. */
+var arrayProto = Array.prototype;
+
+/** Built-in value references. */
+var splice = arrayProto.splice;
+
+/**
+ * Removes `key` and its value from the list cache.
+ *
+ * @private
+ * @name delete
+ * @memberOf ListCache
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+function listCacheDelete(key) {
+  var data = this.__data__,
+      index = _assocIndexOf(data, key);
+
+  if (index < 0) {
+    return false;
+  }
+  var lastIndex = data.length - 1;
+  if (index == lastIndex) {
+    data.pop();
+  } else {
+    splice.call(data, index, 1);
+  }
+  --this.size;
+  return true;
+}
+
+var _listCacheDelete = listCacheDelete;
+
+/**
+ * Gets the list cache value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf ListCache
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+function listCacheGet(key) {
+  var data = this.__data__,
+      index = _assocIndexOf(data, key);
+
+  return index < 0 ? undefined : data[index][1];
+}
+
+var _listCacheGet = listCacheGet;
+
+/**
+ * Checks if a list cache value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf ListCache
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+function listCacheHas(key) {
+  return _assocIndexOf(this.__data__, key) > -1;
+}
+
+var _listCacheHas = listCacheHas;
+
+/**
+ * Sets the list cache `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf ListCache
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the list cache instance.
+ */
+function listCacheSet(key, value) {
+  var data = this.__data__,
+      index = _assocIndexOf(data, key);
+
+  if (index < 0) {
+    ++this.size;
+    data.push([key, value]);
+  } else {
+    data[index][1] = value;
+  }
+  return this;
+}
+
+var _listCacheSet = listCacheSet;
+
+/**
+ * Creates an list cache object.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function ListCache(entries) {
+  var index = -1,
+      length = entries == null ? 0 : entries.length;
+
+  this.clear();
+  while (++index < length) {
+    var entry = entries[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add methods to `ListCache`.
+ListCache.prototype.clear = _listCacheClear;
+ListCache.prototype['delete'] = _listCacheDelete;
+ListCache.prototype.get = _listCacheGet;
+ListCache.prototype.has = _listCacheHas;
+ListCache.prototype.set = _listCacheSet;
+
+var _ListCache = ListCache;
+
+/**
+ * Removes all key-value entries from the stack.
+ *
+ * @private
+ * @name clear
+ * @memberOf Stack
+ */
+function stackClear() {
+  this.__data__ = new _ListCache;
+  this.size = 0;
+}
+
+var _stackClear = stackClear;
+
+/**
+ * Removes `key` and its value from the stack.
+ *
+ * @private
+ * @name delete
+ * @memberOf Stack
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+function stackDelete(key) {
+  var data = this.__data__,
+      result = data['delete'](key);
+
+  this.size = data.size;
+  return result;
+}
+
+var _stackDelete = stackDelete;
+
+/**
+ * Gets the stack value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf Stack
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+function stackGet(key) {
+  return this.__data__.get(key);
+}
+
+var _stackGet = stackGet;
+
+/**
+ * Checks if a stack value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf Stack
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+function stackHas(key) {
+  return this.__data__.has(key);
+}
+
+var _stackHas = stackHas;
+
+/** Detect free variable `global` from Node.js. */
+var freeGlobal = typeof commonjsGlobal == 'object' && commonjsGlobal && commonjsGlobal.Object === Object && commonjsGlobal;
+
+var _freeGlobal = freeGlobal;
+
+/** Detect free variable `self`. */
+var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
+
+/** Used as a reference to the global object. */
+var root = _freeGlobal || freeSelf || Function('return this')();
+
+var _root = root;
+
+/** Built-in value references. */
+var Symbol = _root.Symbol;
+
+var _Symbol = Symbol;
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$1 = objectProto.hasOwnProperty;
+
+/**
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var nativeObjectToString = objectProto.toString;
+
+/** Built-in value references. */
+var symToStringTag = _Symbol ? _Symbol.toStringTag : undefined;
+
+/**
+ * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the raw `toStringTag`.
+ */
+function getRawTag(value) {
+  var isOwn = hasOwnProperty$1.call(value, symToStringTag),
+      tag = value[symToStringTag];
+
+  try {
+    value[symToStringTag] = undefined;
+    var unmasked = true;
+  } catch (e) {}
+
+  var result = nativeObjectToString.call(value);
+  if (unmasked) {
+    if (isOwn) {
+      value[symToStringTag] = tag;
+    } else {
+      delete value[symToStringTag];
+    }
+  }
+  return result;
+}
+
+var _getRawTag = getRawTag;
+
+/** Used for built-in method references. */
+var objectProto$1 = Object.prototype;
+
+/**
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var nativeObjectToString$1 = objectProto$1.toString;
+
+/**
+ * Converts `value` to a string using `Object.prototype.toString`.
+ *
+ * @private
+ * @param {*} value The value to convert.
+ * @returns {string} Returns the converted string.
+ */
+function objectToString(value) {
+  return nativeObjectToString$1.call(value);
+}
+
+var _objectToString = objectToString;
+
+/** `Object#toString` result references. */
+var nullTag = '[object Null]',
+    undefinedTag = '[object Undefined]';
+
+/** Built-in value references. */
+var symToStringTag$1 = _Symbol ? _Symbol.toStringTag : undefined;
+
+/**
+ * The base implementation of `getTag` without fallbacks for buggy environments.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
+ */
+function baseGetTag(value) {
+  if (value == null) {
+    return value === undefined ? undefinedTag : nullTag;
+  }
+  return (symToStringTag$1 && symToStringTag$1 in Object(value))
+    ? _getRawTag(value)
+    : _objectToString(value);
+}
+
+var _baseGetTag = baseGetTag;
+
+/**
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(_.noop);
+ * // => true
+ *
+ * _.isObject(null);
+ * // => false
+ */
+function isObject(value) {
+  var type = typeof value;
+  return value != null && (type == 'object' || type == 'function');
+}
+
+var isObject_1 = isObject;
+
+/** `Object#toString` result references. */
+var asyncTag = '[object AsyncFunction]',
+    funcTag = '[object Function]',
+    genTag = '[object GeneratorFunction]',
+    proxyTag = '[object Proxy]';
+
+/**
+ * Checks if `value` is classified as a `Function` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a function, else `false`.
+ * @example
+ *
+ * _.isFunction(_);
+ * // => true
+ *
+ * _.isFunction(/abc/);
+ * // => false
+ */
+function isFunction(value) {
+  if (!isObject_1(value)) {
+    return false;
+  }
+  // The use of `Object#toString` avoids issues with the `typeof` operator
+  // in Safari 9 which returns 'object' for typed arrays and other constructors.
+  var tag = _baseGetTag(value);
+  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
+}
+
+var isFunction_1 = isFunction;
+
+/** Used to detect overreaching core-js shims. */
+var coreJsData = _root['__core-js_shared__'];
+
+var _coreJsData = coreJsData;
+
+/** Used to detect methods masquerading as native. */
+var maskSrcKey = (function() {
+  var uid = /[^.]+$/.exec(_coreJsData && _coreJsData.keys && _coreJsData.keys.IE_PROTO || '');
+  return uid ? ('Symbol(src)_1.' + uid) : '';
+}());
+
+/**
+ * Checks if `func` has its source masked.
+ *
+ * @private
+ * @param {Function} func The function to check.
+ * @returns {boolean} Returns `true` if `func` is masked, else `false`.
+ */
+function isMasked(func) {
+  return !!maskSrcKey && (maskSrcKey in func);
+}
+
+var _isMasked = isMasked;
+
+/** Used for built-in method references. */
+var funcProto = Function.prototype;
+
+/** Used to resolve the decompiled source of functions. */
+var funcToString = funcProto.toString;
+
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to convert.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e$1) {}
+  }
+  return '';
+}
+
+var _toSource = toSource;
+
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
+ */
+var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
+
+/** Used to detect host constructors (Safari). */
+var reIsHostCtor = /^\[object .+?Constructor\]$/;
+
+/** Used for built-in method references. */
+var funcProto$1 = Function.prototype,
+    objectProto$2 = Object.prototype;
+
+/** Used to resolve the decompiled source of functions. */
+var funcToString$1 = funcProto$1.toString;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$2 = objectProto$2.hasOwnProperty;
+
+/** Used to detect if a method is native. */
+var reIsNative = RegExp('^' +
+  funcToString$1.call(hasOwnProperty$2).replace(reRegExpChar, '\\$&')
+  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+);
+
+/**
+ * The base implementation of `_.isNative` without bad shim checks.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a native function,
+ *  else `false`.
+ */
+function baseIsNative(value) {
+  if (!isObject_1(value) || _isMasked(value)) {
+    return false;
+  }
+  var pattern = isFunction_1(value) ? reIsNative : reIsHostCtor;
+  return pattern.test(_toSource(value));
+}
+
+var _baseIsNative = baseIsNative;
+
+/**
+ * Gets the value at `key` of `object`.
+ *
+ * @private
+ * @param {Object} [object] The object to query.
+ * @param {string} key The key of the property to get.
+ * @returns {*} Returns the property value.
+ */
+function getValue(object, key) {
+  return object == null ? undefined : object[key];
+}
+
+var _getValue = getValue;
+
+/**
+ * Gets the native function at `key` of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {string} key The key of the method to get.
+ * @returns {*} Returns the function if it's native, else `undefined`.
+ */
+function getNative(object, key) {
+  var value = _getValue(object, key);
+  return _baseIsNative(value) ? value : undefined;
+}
+
+var _getNative = getNative;
+
+/* Built-in method references that are verified to be native. */
+var Map = _getNative(_root, 'Map');
+
+var _Map = Map;
+
+/* Built-in method references that are verified to be native. */
+var nativeCreate = _getNative(Object, 'create');
+
+var _nativeCreate = nativeCreate;
+
+/**
+ * Removes all key-value entries from the hash.
+ *
+ * @private
+ * @name clear
+ * @memberOf Hash
+ */
+function hashClear() {
+  this.__data__ = _nativeCreate ? _nativeCreate(null) : {};
+  this.size = 0;
+}
+
+var _hashClear = hashClear;
+
+/**
+ * Removes `key` and its value from the hash.
+ *
+ * @private
+ * @name delete
+ * @memberOf Hash
+ * @param {Object} hash The hash to modify.
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+function hashDelete(key) {
+  var result = this.has(key) && delete this.__data__[key];
+  this.size -= result ? 1 : 0;
+  return result;
+}
+
+var _hashDelete = hashDelete;
+
+/** Used to stand-in for `undefined` hash values. */
+var HASH_UNDEFINED = '__lodash_hash_undefined__';
+
+/** Used for built-in method references. */
+var objectProto$3 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$3 = objectProto$3.hasOwnProperty;
+
+/**
+ * Gets the hash value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf Hash
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+function hashGet(key) {
+  var data = this.__data__;
+  if (_nativeCreate) {
+    var result = data[key];
+    return result === HASH_UNDEFINED ? undefined : result;
+  }
+  return hasOwnProperty$3.call(data, key) ? data[key] : undefined;
+}
+
+var _hashGet = hashGet;
+
+/** Used for built-in method references. */
+var objectProto$4 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$4 = objectProto$4.hasOwnProperty;
+
+/**
+ * Checks if a hash value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf Hash
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+function hashHas(key) {
+  var data = this.__data__;
+  return _nativeCreate ? (data[key] !== undefined) : hasOwnProperty$4.call(data, key);
+}
+
+var _hashHas = hashHas;
+
+/** Used to stand-in for `undefined` hash values. */
+var HASH_UNDEFINED$1 = '__lodash_hash_undefined__';
+
+/**
+ * Sets the hash `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf Hash
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the hash instance.
+ */
+function hashSet(key, value) {
+  var data = this.__data__;
+  this.size += this.has(key) ? 0 : 1;
+  data[key] = (_nativeCreate && value === undefined) ? HASH_UNDEFINED$1 : value;
+  return this;
+}
+
+var _hashSet = hashSet;
+
+/**
+ * Creates a hash object.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function Hash(entries) {
+  var index = -1,
+      length = entries == null ? 0 : entries.length;
+
+  this.clear();
+  while (++index < length) {
+    var entry = entries[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add methods to `Hash`.
+Hash.prototype.clear = _hashClear;
+Hash.prototype['delete'] = _hashDelete;
+Hash.prototype.get = _hashGet;
+Hash.prototype.has = _hashHas;
+Hash.prototype.set = _hashSet;
+
+var _Hash = Hash;
+
+/**
+ * Removes all key-value entries from the map.
+ *
+ * @private
+ * @name clear
+ * @memberOf MapCache
+ */
+function mapCacheClear() {
+  this.size = 0;
+  this.__data__ = {
+    'hash': new _Hash,
+    'map': new (_Map || _ListCache),
+    'string': new _Hash
+  };
+}
+
+var _mapCacheClear = mapCacheClear;
+
+/**
+ * Checks if `value` is suitable for use as unique object key.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
+ */
+function isKeyable(value) {
+  var type = typeof value;
+  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
+    ? (value !== '__proto__')
+    : (value === null);
+}
+
+var _isKeyable = isKeyable;
+
+/**
+ * Gets the data for `map`.
+ *
+ * @private
+ * @param {Object} map The map to query.
+ * @param {string} key The reference key.
+ * @returns {*} Returns the map data.
+ */
+function getMapData(map, key) {
+  var data = map.__data__;
+  return _isKeyable(key)
+    ? data[typeof key == 'string' ? 'string' : 'hash']
+    : data.map;
+}
+
+var _getMapData = getMapData;
+
+/**
+ * Removes `key` and its value from the map.
+ *
+ * @private
+ * @name delete
+ * @memberOf MapCache
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed, else `false`.
+ */
+function mapCacheDelete(key) {
+  var result = _getMapData(this, key)['delete'](key);
+  this.size -= result ? 1 : 0;
+  return result;
+}
+
+var _mapCacheDelete = mapCacheDelete;
+
+/**
+ * Gets the map value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf MapCache
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+function mapCacheGet(key) {
+  return _getMapData(this, key).get(key);
+}
+
+var _mapCacheGet = mapCacheGet;
+
+/**
+ * Checks if a map value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf MapCache
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+function mapCacheHas(key) {
+  return _getMapData(this, key).has(key);
+}
+
+var _mapCacheHas = mapCacheHas;
+
+/**
+ * Sets the map `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf MapCache
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the map cache instance.
+ */
+function mapCacheSet(key, value) {
+  var data = _getMapData(this, key),
+      size = data.size;
+
+  data.set(key, value);
+  this.size += data.size == size ? 0 : 1;
+  return this;
+}
+
+var _mapCacheSet = mapCacheSet;
+
+/**
+ * Creates a map cache object to store key-value pairs.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function MapCache(entries) {
+  var index = -1,
+      length = entries == null ? 0 : entries.length;
+
+  this.clear();
+  while (++index < length) {
+    var entry = entries[index];
+    this.set(entry[0], entry[1]);
+  }
+}
+
+// Add methods to `MapCache`.
+MapCache.prototype.clear = _mapCacheClear;
+MapCache.prototype['delete'] = _mapCacheDelete;
+MapCache.prototype.get = _mapCacheGet;
+MapCache.prototype.has = _mapCacheHas;
+MapCache.prototype.set = _mapCacheSet;
+
+var _MapCache = MapCache;
+
+/** Used as the size to enable large array optimizations. */
+var LARGE_ARRAY_SIZE = 200;
+
+/**
+ * Sets the stack `key` to `value`.
+ *
+ * @private
+ * @name set
+ * @memberOf Stack
+ * @param {string} key The key of the value to set.
+ * @param {*} value The value to set.
+ * @returns {Object} Returns the stack cache instance.
+ */
+function stackSet(key, value) {
+  var data = this.__data__;
+  if (data instanceof _ListCache) {
+    var pairs = data.__data__;
+    if (!_Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
+      pairs.push([key, value]);
+      this.size = ++data.size;
+      return this;
+    }
+    data = this.__data__ = new _MapCache(pairs);
+  }
+  data.set(key, value);
+  this.size = data.size;
+  return this;
+}
+
+var _stackSet = stackSet;
+
+/**
+ * Creates a stack cache object to store key-value pairs.
+ *
+ * @private
+ * @constructor
+ * @param {Array} [entries] The key-value pairs to cache.
+ */
+function Stack(entries) {
+  var data = this.__data__ = new _ListCache(entries);
+  this.size = data.size;
+}
+
+// Add methods to `Stack`.
+Stack.prototype.clear = _stackClear;
+Stack.prototype['delete'] = _stackDelete;
+Stack.prototype.get = _stackGet;
+Stack.prototype.has = _stackHas;
+Stack.prototype.set = _stackSet;
+
+var _Stack = Stack;
+
+/**
+ * A specialized version of `_.forEach` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns `array`.
+ */
+function arrayEach(array, iteratee) {
+  var index = -1,
+      length = array == null ? 0 : array.length;
+
+  while (++index < length) {
+    if (iteratee(array[index], index, array) === false) {
+      break;
+    }
+  }
+  return array;
+}
+
+var _arrayEach = arrayEach;
+
+var defineProperty = (function() {
+  try {
+    var func = _getNative(Object, 'defineProperty');
+    func({}, '', {});
+    return func;
+  } catch (e) {}
+}());
+
+var _defineProperty = defineProperty;
+
+/**
+ * The base implementation of `assignValue` and `assignMergeValue` without
+ * value checks.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+function baseAssignValue(object, key, value) {
+  if (key == '__proto__' && _defineProperty) {
+    _defineProperty(object, key, {
+      'configurable': true,
+      'enumerable': true,
+      'value': value,
+      'writable': true
+    });
+  } else {
+    object[key] = value;
+  }
+}
+
+var _baseAssignValue = baseAssignValue;
+
+/** Used for built-in method references. */
+var objectProto$5 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$5 = objectProto$5.hasOwnProperty;
+
+/**
+ * Assigns `value` to `key` of `object` if the existing value is not equivalent
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @private
+ * @param {Object} object The object to modify.
+ * @param {string} key The key of the property to assign.
+ * @param {*} value The value to assign.
+ */
+function assignValue(object, key, value) {
+  var objValue = object[key];
+  if (!(hasOwnProperty$5.call(object, key) && eq_1(objValue, value)) ||
+      (value === undefined && !(key in object))) {
+    _baseAssignValue(object, key, value);
+  }
+}
+
+var _assignValue = assignValue;
+
+/**
+ * Copies properties of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy properties from.
+ * @param {Array} props The property identifiers to copy.
+ * @param {Object} [object={}] The object to copy properties to.
+ * @param {Function} [customizer] The function to customize copied values.
+ * @returns {Object} Returns `object`.
+ */
+function copyObject(source, props, object, customizer) {
+  var isNew = !object;
+  object || (object = {});
+
+  var index = -1,
+      length = props.length;
+
+  while (++index < length) {
+    var key = props[index];
+
+    var newValue = customizer
+      ? customizer(object[key], source[key], key, object, source)
+      : undefined;
+
+    if (newValue === undefined) {
+      newValue = source[key];
+    }
+    if (isNew) {
+      _baseAssignValue(object, key, newValue);
+    } else {
+      _assignValue(object, key, newValue);
+    }
+  }
+  return object;
+}
+
+var _copyObject = copyObject;
+
+/**
+ * The base implementation of `_.times` without support for iteratee shorthands
+ * or max array length checks.
+ *
+ * @private
+ * @param {number} n The number of times to invoke `iteratee`.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the array of results.
+ */
+function baseTimes(n, iteratee) {
+  var index = -1,
+      result = Array(n);
+
+  while (++index < n) {
+    result[index] = iteratee(index);
+  }
+  return result;
+}
+
+var _baseTimes = baseTimes;
+
+/**
+ * Checks if `value` is object-like. A value is object-like if it's not `null`
+ * and has a `typeof` result of "object".
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ * @example
+ *
+ * _.isObjectLike({});
+ * // => true
+ *
+ * _.isObjectLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isObjectLike(_.noop);
+ * // => false
+ *
+ * _.isObjectLike(null);
+ * // => false
+ */
+function isObjectLike(value) {
+  return value != null && typeof value == 'object';
+}
+
+var isObjectLike_1 = isObjectLike;
+
+/** `Object#toString` result references. */
+var argsTag = '[object Arguments]';
+
+/**
+ * The base implementation of `_.isArguments`.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ */
+function baseIsArguments(value) {
+  return isObjectLike_1(value) && _baseGetTag(value) == argsTag;
+}
+
+var _baseIsArguments = baseIsArguments;
+
+/** Used for built-in method references. */
+var objectProto$6 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$6 = objectProto$6.hasOwnProperty;
+
+/** Built-in value references. */
+var propertyIsEnumerable = objectProto$6.propertyIsEnumerable;
+
+/**
+ * Checks if `value` is likely an `arguments` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an `arguments` object,
+ *  else `false`.
+ * @example
+ *
+ * _.isArguments(function() { return arguments; }());
+ * // => true
+ *
+ * _.isArguments([1, 2, 3]);
+ * // => false
+ */
+var isArguments = _baseIsArguments(function() { return arguments; }()) ? _baseIsArguments : function(value) {
+  return isObjectLike_1(value) && hasOwnProperty$6.call(value, 'callee') &&
+    !propertyIsEnumerable.call(value, 'callee');
+};
+
+var isArguments_1 = isArguments;
+
+/**
+ * Checks if `value` is classified as an `Array` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 0.1.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an array, else `false`.
+ * @example
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ *
+ * _.isArray(document.body.children);
+ * // => false
+ *
+ * _.isArray('abc');
+ * // => false
+ *
+ * _.isArray(_.noop);
+ * // => false
+ */
+var isArray = Array.isArray;
+
+var isArray_1 = isArray;
+
+/**
+ * This method returns `false`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.13.0
+ * @category Util
+ * @returns {boolean} Returns `false`.
+ * @example
+ *
+ * _.times(2, _.stubFalse);
+ * // => [false, false]
+ */
+function stubFalse() {
+  return false;
+}
+
+var stubFalse_1 = stubFalse;
+
+var isBuffer_1$1 = createCommonjsModule(function (module, exports) {
+/** Detect free variable `exports`. */
+var freeExports =  exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Built-in value references. */
+var Buffer = moduleExports ? _root.Buffer : undefined;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;
+
+/**
+ * Checks if `value` is a buffer.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
+ * @example
+ *
+ * _.isBuffer(new Buffer(2));
+ * // => true
+ *
+ * _.isBuffer(new Uint8Array(2));
+ * // => false
+ */
+var isBuffer = nativeIsBuffer || stubFalse_1;
+
+module.exports = isBuffer;
+});
+
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER = 9007199254740991;
+
+/** Used to detect unsigned integer values. */
+var reIsUint = /^(?:0|[1-9]\d*)$/;
+
+/**
+ * Checks if `value` is a valid array-like index.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
+ * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
+ */
+function isIndex(value, length) {
+  var type = typeof value;
+  length = length == null ? MAX_SAFE_INTEGER : length;
+
+  return !!length &&
+    (type == 'number' ||
+      (type != 'symbol' && reIsUint.test(value))) &&
+        (value > -1 && value % 1 == 0 && value < length);
+}
+
+var _isIndex = isIndex;
+
+/** Used as references for various `Number` constants. */
+var MAX_SAFE_INTEGER$1 = 9007199254740991;
+
+/**
+ * Checks if `value` is a valid array-like length.
+ *
+ * **Note:** This method is loosely based on
+ * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
+ * @example
+ *
+ * _.isLength(3);
+ * // => true
+ *
+ * _.isLength(Number.MIN_VALUE);
+ * // => false
+ *
+ * _.isLength(Infinity);
+ * // => false
+ *
+ * _.isLength('3');
+ * // => false
+ */
+function isLength(value) {
+  return typeof value == 'number' &&
+    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER$1;
+}
+
+var isLength_1 = isLength;
+
+/** `Object#toString` result references. */
+var argsTag$1 = '[object Arguments]',
+    arrayTag = '[object Array]',
+    boolTag = '[object Boolean]',
+    dateTag = '[object Date]',
+    errorTag = '[object Error]',
+    funcTag$1 = '[object Function]',
+    mapTag = '[object Map]',
+    numberTag = '[object Number]',
+    objectTag = '[object Object]',
+    regexpTag = '[object RegExp]',
+    setTag = '[object Set]',
+    stringTag = '[object String]',
+    weakMapTag = '[object WeakMap]';
+
+var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
+    float32Tag = '[object Float32Array]',
+    float64Tag = '[object Float64Array]',
+    int8Tag = '[object Int8Array]',
+    int16Tag = '[object Int16Array]',
+    int32Tag = '[object Int32Array]',
+    uint8Tag = '[object Uint8Array]',
+    uint8ClampedTag = '[object Uint8ClampedArray]',
+    uint16Tag = '[object Uint16Array]',
+    uint32Tag = '[object Uint32Array]';
+
+/** Used to identify `toStringTag` values of typed arrays. */
+var typedArrayTags = {};
+typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
+typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
+typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
+typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
+typedArrayTags[uint32Tag] = true;
+typedArrayTags[argsTag$1] = typedArrayTags[arrayTag] =
+typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
+typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+typedArrayTags[errorTag] = typedArrayTags[funcTag$1] =
+typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+typedArrayTags[setTag] = typedArrayTags[stringTag] =
+typedArrayTags[weakMapTag] = false;
+
+/**
+ * The base implementation of `_.isTypedArray` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ */
+function baseIsTypedArray(value) {
+  return isObjectLike_1(value) &&
+    isLength_1(value.length) && !!typedArrayTags[_baseGetTag(value)];
+}
+
+var _baseIsTypedArray = baseIsTypedArray;
+
+/**
+ * The base implementation of `_.unary` without support for storing metadata.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new capped function.
+ */
+function baseUnary(func) {
+  return function(value) {
+    return func(value);
+  };
+}
+
+var _baseUnary = baseUnary;
+
+var _nodeUtil = createCommonjsModule(function (module, exports) {
+/** Detect free variable `exports`. */
+var freeExports =  exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Detect free variable `process` from Node.js. */
+var freeProcess = moduleExports && _freeGlobal.process;
+
+/** Used to access faster Node.js helpers. */
+var nodeUtil = (function() {
+  try {
+    // Use `util.types` for Node.js 10+.
+    var types = freeModule && freeModule.require && freeModule.require('util').types;
+
+    if (types) {
+      return types;
+    }
+
+    // Legacy `process.binding('util')` for Node.js < 10.
+    return freeProcess && freeProcess.binding && freeProcess.binding('util');
+  } catch (e) {}
+}());
+
+module.exports = nodeUtil;
+});
+
+/* Node.js helper references. */
+var nodeIsTypedArray = _nodeUtil && _nodeUtil.isTypedArray;
+
+/**
+ * Checks if `value` is classified as a typed array.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ * @example
+ *
+ * _.isTypedArray(new Uint8Array);
+ * // => true
+ *
+ * _.isTypedArray([]);
+ * // => false
+ */
+var isTypedArray = nodeIsTypedArray ? _baseUnary(nodeIsTypedArray) : _baseIsTypedArray;
+
+var isTypedArray_1 = isTypedArray;
+
+/** Used for built-in method references. */
+var objectProto$7 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$7 = objectProto$7.hasOwnProperty;
+
+/**
+ * Creates an array of the enumerable property names of the array-like `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @param {boolean} inherited Specify returning inherited property names.
+ * @returns {Array} Returns the array of property names.
+ */
+function arrayLikeKeys(value, inherited) {
+  var isArr = isArray_1(value),
+      isArg = !isArr && isArguments_1(value),
+      isBuff = !isArr && !isArg && isBuffer_1$1(value),
+      isType = !isArr && !isArg && !isBuff && isTypedArray_1(value),
+      skipIndexes = isArr || isArg || isBuff || isType,
+      result = skipIndexes ? _baseTimes(value.length, String) : [],
+      length = result.length;
+
+  for (var key in value) {
+    if ((inherited || hasOwnProperty$7.call(value, key)) &&
+        !(skipIndexes && (
+           // Safari 9 has enumerable `arguments.length` in strict mode.
+           key == 'length' ||
+           // Node.js 0.10 has enumerable non-index properties on buffers.
+           (isBuff && (key == 'offset' || key == 'parent')) ||
+           // PhantomJS 2 has enumerable non-index properties on typed arrays.
+           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
+           // Skip index properties.
+           _isIndex(key, length)
+        ))) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+var _arrayLikeKeys = arrayLikeKeys;
+
+/** Used for built-in method references. */
+var objectProto$8 = Object.prototype;
+
+/**
+ * Checks if `value` is likely a prototype object.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+ */
+function isPrototype(value) {
+  var Ctor = value && value.constructor,
+      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto$8;
+
+  return value === proto;
+}
+
+var _isPrototype = isPrototype;
+
+/**
+ * Creates a unary function that invokes `func` with its argument transformed.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {Function} transform The argument transform.
+ * @returns {Function} Returns the new function.
+ */
+function overArg(func, transform) {
+  return function(arg) {
+    return func(transform(arg));
+  };
+}
+
+var _overArg = overArg;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeKeys = _overArg(Object.keys, Object);
+
+var _nativeKeys = nativeKeys;
+
+/** Used for built-in method references. */
+var objectProto$9 = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$8 = objectProto$9.hasOwnProperty;
+
+/**
+ * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function baseKeys(object) {
+  if (!_isPrototype(object)) {
+    return _nativeKeys(object);
+  }
+  var result = [];
+  for (var key in Object(object)) {
+    if (hasOwnProperty$8.call(object, key) && key != 'constructor') {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+var _baseKeys = baseKeys;
+
+/**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
+ */
+function isArrayLike(value) {
+  return value != null && isLength_1(value.length) && !isFunction_1(value);
+}
+
+var isArrayLike_1 = isArrayLike;
+
+/**
+ * Creates an array of the own enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects. See the
+ * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * for more details.
+ *
+ * @static
+ * @since 0.1.0
+ * @memberOf _
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keys(new Foo);
+ * // => ['a', 'b'] (iteration order is not guaranteed)
+ *
+ * _.keys('hi');
+ * // => ['0', '1']
+ */
+function keys$1(object) {
+  return isArrayLike_1(object) ? _arrayLikeKeys(object) : _baseKeys(object);
+}
+
+var keys_1 = keys$1;
+
+/**
+ * The base implementation of `_.assign` without support for multiple sources
+ * or `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @returns {Object} Returns `object`.
+ */
+function baseAssign(object, source) {
+  return object && _copyObject(source, keys_1(source), object);
+}
+
+var _baseAssign = baseAssign;
+
+/**
+ * This function is like
+ * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
+ * except that it includes inherited enumerable properties.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function nativeKeysIn(object) {
+  var result = [];
+  if (object != null) {
+    for (var key in Object(object)) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+var _nativeKeysIn = nativeKeysIn;
+
+/** Used for built-in method references. */
+var objectProto$a = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$9 = objectProto$a.hasOwnProperty;
+
+/**
+ * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function baseKeysIn(object) {
+  if (!isObject_1(object)) {
+    return _nativeKeysIn(object);
+  }
+  var isProto = _isPrototype(object),
+      result = [];
+
+  for (var key in object) {
+    if (!(key == 'constructor' && (isProto || !hasOwnProperty$9.call(object, key)))) {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+var _baseKeysIn = baseKeysIn;
+
+/**
+ * Creates an array of the own and inherited enumerable property names of `object`.
+ *
+ * **Note:** Non-object values are coerced to objects.
+ *
+ * @static
+ * @memberOf _
+ * @since 3.0.0
+ * @category Object
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ * @example
+ *
+ * function Foo() {
+ *   this.a = 1;
+ *   this.b = 2;
+ * }
+ *
+ * Foo.prototype.c = 3;
+ *
+ * _.keysIn(new Foo);
+ * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+ */
+function keysIn(object) {
+  return isArrayLike_1(object) ? _arrayLikeKeys(object, true) : _baseKeysIn(object);
+}
+
+var keysIn_1 = keysIn;
+
+/**
+ * The base implementation of `_.assignIn` without support for multiple sources
+ * or `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @returns {Object} Returns `object`.
+ */
+function baseAssignIn(object, source) {
+  return object && _copyObject(source, keysIn_1(source), object);
+}
+
+var _baseAssignIn = baseAssignIn;
+
+var _cloneBuffer = createCommonjsModule(function (module, exports) {
+/** Detect free variable `exports`. */
+var freeExports =  exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && 'object' == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Built-in value references. */
+var Buffer = moduleExports ? _root.Buffer : undefined,
+    allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined;
+
+/**
+ * Creates a clone of  `buffer`.
+ *
+ * @private
+ * @param {Buffer} buffer The buffer to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Buffer} Returns the cloned buffer.
+ */
+function cloneBuffer(buffer, isDeep) {
+  if (isDeep) {
+    return buffer.slice();
+  }
+  var length = buffer.length,
+      result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);
+
+  buffer.copy(result);
+  return result;
+}
+
+module.exports = cloneBuffer;
+});
+
+/**
+ * Copies the values of `source` to `array`.
+ *
+ * @private
+ * @param {Array} source The array to copy values from.
+ * @param {Array} [array=[]] The array to copy values to.
+ * @returns {Array} Returns `array`.
+ */
+function copyArray(source, array) {
+  var index = -1,
+      length = source.length;
+
+  array || (array = Array(length));
+  while (++index < length) {
+    array[index] = source[index];
+  }
+  return array;
+}
+
+var _copyArray = copyArray;
+
+/**
+ * A specialized version of `_.filter` for arrays without support for
+ * iteratee shorthands.
+ *
+ * @private
+ * @param {Array} [array] The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ */
+function arrayFilter(array, predicate) {
+  var index = -1,
+      length = array == null ? 0 : array.length,
+      resIndex = 0,
+      result = [];
+
+  while (++index < length) {
+    var value = array[index];
+    if (predicate(value, index, array)) {
+      result[resIndex++] = value;
+    }
+  }
+  return result;
+}
+
+var _arrayFilter = arrayFilter;
+
+/**
+ * This method returns a new empty array.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.13.0
+ * @category Util
+ * @returns {Array} Returns the new empty array.
+ * @example
+ *
+ * var arrays = _.times(2, _.stubArray);
+ *
+ * console.log(arrays);
+ * // => [[], []]
+ *
+ * console.log(arrays[0] === arrays[1]);
+ * // => false
+ */
+function stubArray() {
+  return [];
+}
+
+var stubArray_1 = stubArray;
+
+/** Used for built-in method references. */
+var objectProto$b = Object.prototype;
+
+/** Built-in value references. */
+var propertyIsEnumerable$1 = objectProto$b.propertyIsEnumerable;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeGetSymbols = Object.getOwnPropertySymbols;
+
+/**
+ * Creates an array of the own enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+var getSymbols = !nativeGetSymbols ? stubArray_1 : function(object) {
+  if (object == null) {
+    return [];
+  }
+  object = Object(object);
+  return _arrayFilter(nativeGetSymbols(object), function(symbol) {
+    return propertyIsEnumerable$1.call(object, symbol);
+  });
+};
+
+var _getSymbols = getSymbols;
+
+/**
+ * Copies own symbols of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy symbols from.
+ * @param {Object} [object={}] The object to copy symbols to.
+ * @returns {Object} Returns `object`.
+ */
+function copySymbols(source, object) {
+  return _copyObject(source, _getSymbols(source), object);
+}
+
+var _copySymbols = copySymbols;
+
+/**
+ * Appends the elements of `values` to `array`.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {Array} values The values to append.
+ * @returns {Array} Returns `array`.
+ */
+function arrayPush(array, values) {
+  var index = -1,
+      length = values.length,
+      offset = array.length;
+
+  while (++index < length) {
+    array[offset + index] = values[index];
+  }
+  return array;
+}
+
+var _arrayPush = arrayPush;
+
+/** Built-in value references. */
+var getPrototype = _overArg(Object.getPrototypeOf, Object);
+
+var _getPrototype = getPrototype;
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeGetSymbols$1 = Object.getOwnPropertySymbols;
+
+/**
+ * Creates an array of the own and inherited enumerable symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+var getSymbolsIn = !nativeGetSymbols$1 ? stubArray_1 : function(object) {
+  var result = [];
+  while (object) {
+    _arrayPush(result, _getSymbols(object));
+    object = _getPrototype(object);
+  }
+  return result;
+};
+
+var _getSymbolsIn = getSymbolsIn;
+
+/**
+ * Copies own and inherited symbols of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy symbols from.
+ * @param {Object} [object={}] The object to copy symbols to.
+ * @returns {Object} Returns `object`.
+ */
+function copySymbolsIn(source, object) {
+  return _copyObject(source, _getSymbolsIn(source), object);
+}
+
+var _copySymbolsIn = copySymbolsIn;
+
+/**
+ * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
+ * `keysFunc` and `symbolsFunc` to get the enumerable property names and
+ * symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @param {Function} symbolsFunc The function to get the symbols of `object`.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+function baseGetAllKeys(object, keysFunc, symbolsFunc) {
+  var result = keysFunc(object);
+  return isArray_1(object) ? result : _arrayPush(result, symbolsFunc(object));
+}
+
+var _baseGetAllKeys = baseGetAllKeys;
+
+/**
+ * Creates an array of own enumerable property names and symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+function getAllKeys(object) {
+  return _baseGetAllKeys(object, keys_1, _getSymbols);
+}
+
+var _getAllKeys = getAllKeys;
+
+/**
+ * Creates an array of own and inherited enumerable property names and
+ * symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names and symbols.
+ */
+function getAllKeysIn(object) {
+  return _baseGetAllKeys(object, keysIn_1, _getSymbolsIn);
+}
+
+var _getAllKeysIn = getAllKeysIn;
+
+/* Built-in method references that are verified to be native. */
+var DataView = _getNative(_root, 'DataView');
+
+var _DataView = DataView;
+
+/* Built-in method references that are verified to be native. */
+var Promise$1 = _getNative(_root, 'Promise');
+
+var _Promise = Promise$1;
+
+/* Built-in method references that are verified to be native. */
+var Set$1 = _getNative(_root, 'Set');
+
+var _Set = Set$1;
+
+/* Built-in method references that are verified to be native. */
+var WeakMap = _getNative(_root, 'WeakMap');
+
+var _WeakMap = WeakMap;
+
+/** `Object#toString` result references. */
+var mapTag$1 = '[object Map]',
+    objectTag$1 = '[object Object]',
+    promiseTag = '[object Promise]',
+    setTag$1 = '[object Set]',
+    weakMapTag$1 = '[object WeakMap]';
+
+var dataViewTag$1 = '[object DataView]';
+
+/** Used to detect maps, sets, and weakmaps. */
+var dataViewCtorString = _toSource(_DataView),
+    mapCtorString = _toSource(_Map),
+    promiseCtorString = _toSource(_Promise),
+    setCtorString = _toSource(_Set),
+    weakMapCtorString = _toSource(_WeakMap);
+
+/**
+ * Gets the `toStringTag` of `value`.
+ *
+ * @private
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
+ */
+var getTag = _baseGetTag;
+
+// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
+if ((_DataView && getTag(new _DataView(new ArrayBuffer(1))) != dataViewTag$1) ||
+    (_Map && getTag(new _Map) != mapTag$1) ||
+    (_Promise && getTag(_Promise.resolve()) != promiseTag) ||
+    (_Set && getTag(new _Set) != setTag$1) ||
+    (_WeakMap && getTag(new _WeakMap) != weakMapTag$1)) {
+  getTag = function(value) {
+    var result = _baseGetTag(value),
+        Ctor = result == objectTag$1 ? value.constructor : undefined,
+        ctorString = Ctor ? _toSource(Ctor) : '';
+
+    if (ctorString) {
+      switch (ctorString) {
+        case dataViewCtorString: return dataViewTag$1;
+        case mapCtorString: return mapTag$1;
+        case promiseCtorString: return promiseTag;
+        case setCtorString: return setTag$1;
+        case weakMapCtorString: return weakMapTag$1;
+      }
+    }
+    return result;
+  };
+}
+
+var _getTag = getTag;
+
+/** Used for built-in method references. */
+var objectProto$c = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty$a = objectProto$c.hasOwnProperty;
+
+/**
+ * Initializes an array clone.
+ *
+ * @private
+ * @param {Array} array The array to clone.
+ * @returns {Array} Returns the initialized clone.
+ */
+function initCloneArray(array) {
+  var length = array.length,
+      result = new array.constructor(length);
+
+  // Add properties assigned by `RegExp#exec`.
+  if (length && typeof array[0] == 'string' && hasOwnProperty$a.call(array, 'index')) {
+    result.index = array.index;
+    result.input = array.input;
+  }
+  return result;
+}
+
+var _initCloneArray = initCloneArray;
+
+/** Built-in value references. */
+var Uint8Array = _root.Uint8Array;
+
+var _Uint8Array = Uint8Array;
+
+/**
+ * Creates a clone of `arrayBuffer`.
+ *
+ * @private
+ * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
+ * @returns {ArrayBuffer} Returns the cloned array buffer.
+ */
+function cloneArrayBuffer(arrayBuffer) {
+  var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
+  new _Uint8Array(result).set(new _Uint8Array(arrayBuffer));
+  return result;
+}
+
+var _cloneArrayBuffer = cloneArrayBuffer;
+
+/**
+ * Creates a clone of `dataView`.
+ *
+ * @private
+ * @param {Object} dataView The data view to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the cloned data view.
+ */
+function cloneDataView(dataView, isDeep) {
+  var buffer = isDeep ? _cloneArrayBuffer(dataView.buffer) : dataView.buffer;
+  return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
+}
+
+var _cloneDataView = cloneDataView;
+
+/** Used to match `RegExp` flags from their coerced string values. */
+var reFlags = /\w*$/;
+
+/**
+ * Creates a clone of `regexp`.
+ *
+ * @private
+ * @param {Object} regexp The regexp to clone.
+ * @returns {Object} Returns the cloned regexp.
+ */
+function cloneRegExp(regexp) {
+  var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
+  result.lastIndex = regexp.lastIndex;
+  return result;
+}
+
+var _cloneRegExp = cloneRegExp;
+
+/** Used to convert symbols to primitives and strings. */
+var symbolProto = _Symbol ? _Symbol.prototype : undefined,
+    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
+
+/**
+ * Creates a clone of the `symbol` object.
+ *
+ * @private
+ * @param {Object} symbol The symbol object to clone.
+ * @returns {Object} Returns the cloned symbol object.
+ */
+function cloneSymbol(symbol) {
+  return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
+}
+
+var _cloneSymbol = cloneSymbol;
+
+/**
+ * Creates a clone of `typedArray`.
+ *
+ * @private
+ * @param {Object} typedArray The typed array to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the cloned typed array.
+ */
+function cloneTypedArray(typedArray, isDeep) {
+  var buffer = isDeep ? _cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
+  return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
+}
+
+var _cloneTypedArray = cloneTypedArray;
+
+/** `Object#toString` result references. */
+var boolTag$1 = '[object Boolean]',
+    dateTag$1 = '[object Date]',
+    mapTag$2 = '[object Map]',
+    numberTag$1 = '[object Number]',
+    regexpTag$1 = '[object RegExp]',
+    setTag$2 = '[object Set]',
+    stringTag$1 = '[object String]',
+    symbolTag = '[object Symbol]';
+
+var arrayBufferTag$1 = '[object ArrayBuffer]',
+    dataViewTag$2 = '[object DataView]',
+    float32Tag$1 = '[object Float32Array]',
+    float64Tag$1 = '[object Float64Array]',
+    int8Tag$1 = '[object Int8Array]',
+    int16Tag$1 = '[object Int16Array]',
+    int32Tag$1 = '[object Int32Array]',
+    uint8Tag$1 = '[object Uint8Array]',
+    uint8ClampedTag$1 = '[object Uint8ClampedArray]',
+    uint16Tag$1 = '[object Uint16Array]',
+    uint32Tag$1 = '[object Uint32Array]';
+
+/**
+ * Initializes an object clone based on its `toStringTag`.
+ *
+ * **Note:** This function only supports cloning values with tags of
+ * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
+ *
+ * @private
+ * @param {Object} object The object to clone.
+ * @param {string} tag The `toStringTag` of the object to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the initialized clone.
+ */
+function initCloneByTag(object, tag, isDeep) {
+  var Ctor = object.constructor;
+  switch (tag) {
+    case arrayBufferTag$1:
+      return _cloneArrayBuffer(object);
+
+    case boolTag$1:
+    case dateTag$1:
+      return new Ctor(+object);
+
+    case dataViewTag$2:
+      return _cloneDataView(object, isDeep);
+
+    case float32Tag$1: case float64Tag$1:
+    case int8Tag$1: case int16Tag$1: case int32Tag$1:
+    case uint8Tag$1: case uint8ClampedTag$1: case uint16Tag$1: case uint32Tag$1:
+      return _cloneTypedArray(object, isDeep);
+
+    case mapTag$2:
+      return new Ctor;
+
+    case numberTag$1:
+    case stringTag$1:
+      return new Ctor(object);
+
+    case regexpTag$1:
+      return _cloneRegExp(object);
+
+    case setTag$2:
+      return new Ctor;
+
+    case symbolTag:
+      return _cloneSymbol(object);
+  }
+}
+
+var _initCloneByTag = initCloneByTag;
+
+/** Built-in value references. */
+var objectCreate = Object.create;
+
+/**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} proto The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+var baseCreate = (function() {
+  function object() {}
+  return function(proto) {
+    if (!isObject_1(proto)) {
+      return {};
+    }
+    if (objectCreate) {
+      return objectCreate(proto);
+    }
+    object.prototype = proto;
+    var result = new object;
+    object.prototype = undefined;
+    return result;
+  };
+}());
+
+var _baseCreate = baseCreate;
+
+/**
+ * Initializes an object clone.
+ *
+ * @private
+ * @param {Object} object The object to clone.
+ * @returns {Object} Returns the initialized clone.
+ */
+function initCloneObject(object) {
+  return (typeof object.constructor == 'function' && !_isPrototype(object))
+    ? _baseCreate(_getPrototype(object))
+    : {};
+}
+
+var _initCloneObject = initCloneObject;
+
+/** `Object#toString` result references. */
+var mapTag$3 = '[object Map]';
+
+/**
+ * The base implementation of `_.isMap` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+ */
+function baseIsMap(value) {
+  return isObjectLike_1(value) && _getTag(value) == mapTag$3;
+}
+
+var _baseIsMap = baseIsMap;
+
+/* Node.js helper references. */
+var nodeIsMap = _nodeUtil && _nodeUtil.isMap;
+
+/**
+ * Checks if `value` is classified as a `Map` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a map, else `false`.
+ * @example
+ *
+ * _.isMap(new Map);
+ * // => true
+ *
+ * _.isMap(new WeakMap);
+ * // => false
+ */
+var isMap = nodeIsMap ? _baseUnary(nodeIsMap) : _baseIsMap;
+
+var isMap_1 = isMap;
+
+/** `Object#toString` result references. */
+var setTag$3 = '[object Set]';
+
+/**
+ * The base implementation of `_.isSet` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+ */
+function baseIsSet(value) {
+  return isObjectLike_1(value) && _getTag(value) == setTag$3;
+}
+
+var _baseIsSet = baseIsSet;
+
+/* Node.js helper references. */
+var nodeIsSet = _nodeUtil && _nodeUtil.isSet;
+
+/**
+ * Checks if `value` is classified as a `Set` object.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.3.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a set, else `false`.
+ * @example
+ *
+ * _.isSet(new Set);
+ * // => true
+ *
+ * _.isSet(new WeakSet);
+ * // => false
+ */
+var isSet = nodeIsSet ? _baseUnary(nodeIsSet) : _baseIsSet;
+
+var isSet_1 = isSet;
+
+/** Used to compose bitmasks for cloning. */
+var CLONE_DEEP_FLAG = 1,
+    CLONE_FLAT_FLAG = 2,
+    CLONE_SYMBOLS_FLAG = 4;
+
+/** `Object#toString` result references. */
+var argsTag$2 = '[object Arguments]',
+    arrayTag$1 = '[object Array]',
+    boolTag$2 = '[object Boolean]',
+    dateTag$2 = '[object Date]',
+    errorTag$1 = '[object Error]',
+    funcTag$2 = '[object Function]',
+    genTag$1 = '[object GeneratorFunction]',
+    mapTag$4 = '[object Map]',
+    numberTag$2 = '[object Number]',
+    objectTag$2 = '[object Object]',
+    regexpTag$2 = '[object RegExp]',
+    setTag$4 = '[object Set]',
+    stringTag$2 = '[object String]',
+    symbolTag$1 = '[object Symbol]',
+    weakMapTag$2 = '[object WeakMap]';
+
+var arrayBufferTag$2 = '[object ArrayBuffer]',
+    dataViewTag$3 = '[object DataView]',
+    float32Tag$2 = '[object Float32Array]',
+    float64Tag$2 = '[object Float64Array]',
+    int8Tag$2 = '[object Int8Array]',
+    int16Tag$2 = '[object Int16Array]',
+    int32Tag$2 = '[object Int32Array]',
+    uint8Tag$2 = '[object Uint8Array]',
+    uint8ClampedTag$2 = '[object Uint8ClampedArray]',
+    uint16Tag$2 = '[object Uint16Array]',
+    uint32Tag$2 = '[object Uint32Array]';
+
+/** Used to identify `toStringTag` values supported by `_.clone`. */
+var cloneableTags = {};
+cloneableTags[argsTag$2] = cloneableTags[arrayTag$1] =
+cloneableTags[arrayBufferTag$2] = cloneableTags[dataViewTag$3] =
+cloneableTags[boolTag$2] = cloneableTags[dateTag$2] =
+cloneableTags[float32Tag$2] = cloneableTags[float64Tag$2] =
+cloneableTags[int8Tag$2] = cloneableTags[int16Tag$2] =
+cloneableTags[int32Tag$2] = cloneableTags[mapTag$4] =
+cloneableTags[numberTag$2] = cloneableTags[objectTag$2] =
+cloneableTags[regexpTag$2] = cloneableTags[setTag$4] =
+cloneableTags[stringTag$2] = cloneableTags[symbolTag$1] =
+cloneableTags[uint8Tag$2] = cloneableTags[uint8ClampedTag$2] =
+cloneableTags[uint16Tag$2] = cloneableTags[uint32Tag$2] = true;
+cloneableTags[errorTag$1] = cloneableTags[funcTag$2] =
+cloneableTags[weakMapTag$2] = false;
+
+/**
+ * The base implementation of `_.clone` and `_.cloneDeep` which tracks
+ * traversed objects.
+ *
+ * @private
+ * @param {*} value The value to clone.
+ * @param {boolean} bitmask The bitmask flags.
+ *  1 - Deep clone
+ *  2 - Flatten inherited properties
+ *  4 - Clone symbols
+ * @param {Function} [customizer] The function to customize cloning.
+ * @param {string} [key] The key of `value`.
+ * @param {Object} [object] The parent object of `value`.
+ * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
+ * @returns {*} Returns the cloned value.
+ */
+function baseClone(value, bitmask, customizer, key, object, stack) {
+  var result,
+      isDeep = bitmask & CLONE_DEEP_FLAG,
+      isFlat = bitmask & CLONE_FLAT_FLAG,
+      isFull = bitmask & CLONE_SYMBOLS_FLAG;
+
+  if (customizer) {
+    result = object ? customizer(value, key, object, stack) : customizer(value);
+  }
+  if (result !== undefined) {
+    return result;
+  }
+  if (!isObject_1(value)) {
+    return value;
+  }
+  var isArr = isArray_1(value);
+  if (isArr) {
+    result = _initCloneArray(value);
+    if (!isDeep) {
+      return _copyArray(value, result);
+    }
+  } else {
+    var tag = _getTag(value),
+        isFunc = tag == funcTag$2 || tag == genTag$1;
+
+    if (isBuffer_1$1(value)) {
+      return _cloneBuffer(value, isDeep);
+    }
+    if (tag == objectTag$2 || tag == argsTag$2 || (isFunc && !object)) {
+      result = (isFlat || isFunc) ? {} : _initCloneObject(value);
+      if (!isDeep) {
+        return isFlat
+          ? _copySymbolsIn(value, _baseAssignIn(result, value))
+          : _copySymbols(value, _baseAssign(result, value));
+      }
+    } else {
+      if (!cloneableTags[tag]) {
+        return object ? value : {};
+      }
+      result = _initCloneByTag(value, tag, isDeep);
+    }
+  }
+  // Check for circular references and return its corresponding clone.
+  stack || (stack = new _Stack);
+  var stacked = stack.get(value);
+  if (stacked) {
+    return stacked;
+  }
+  stack.set(value, result);
+
+  if (isSet_1(value)) {
+    value.forEach(function(subValue) {
+      result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
+    });
+  } else if (isMap_1(value)) {
+    value.forEach(function(subValue, key) {
+      result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
+    });
+  }
+
+  var keysFunc = isFull
+    ? (isFlat ? _getAllKeysIn : _getAllKeys)
+    : (isFlat ? keysIn_1 : keys_1);
+
+  var props = isArr ? undefined : keysFunc(value);
+  _arrayEach(props || value, function(subValue, key) {
+    if (props) {
+      key = subValue;
+      subValue = value[key];
+    }
+    // Recursively populate clone (susceptible to call stack limits).
+    _assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
+  });
+  return result;
+}
+
+var _baseClone = baseClone;
+
+/** Used to compose bitmasks for cloning. */
+var CLONE_DEEP_FLAG$1 = 1,
+    CLONE_SYMBOLS_FLAG$1 = 4;
+
+/**
+ * This method is like `_.clone` except that it recursively clones `value`.
+ *
+ * @static
+ * @memberOf _
+ * @since 1.0.0
+ * @category Lang
+ * @param {*} value The value to recursively clone.
+ * @returns {*} Returns the deep cloned value.
+ * @see _.clone
+ * @example
+ *
+ * var objects = [{ 'a': 1 }, { 'b': 2 }];
+ *
+ * var deep = _.cloneDeep(objects);
+ * console.log(deep[0] === objects[0]);
+ * // => false
+ */
+function cloneDeep(value) {
+  return _baseClone(value, CLONE_DEEP_FLAG$1 | CLONE_SYMBOLS_FLAG$1);
+}
+
+var cloneDeep_1 = cloneDeep;
+
+// 
+
+/**
+ * Used internally by vue-server-test-utils and test-utils to propagate/create vue instances.
+ * This method is wrapped by createLocalVue in test-utils to provide a different public API signature
+ * @param {Component} _Vue
+ * @param {VueConfig} config
+ * @returns {Component}
+ */
+function _createLocalVue(
+  _Vue,
+  config
+) {
+  if ( _Vue === void 0 ) _Vue = Vue;
+  if ( config === void 0 ) config = {};
+
+  var instance = _Vue.extend();
+
+  // clone global APIs
+  Object.keys(_Vue).forEach(function (key) {
+    if (!instance.hasOwnProperty(key)) {
+      var original = _Vue[key];
+      // cloneDeep can fail when cloning Vue instances
+      // cloneDeep checks that the instance has a Symbol
+      // which errors in Vue < 2.17 (https://github.com/vuejs/vue/pull/7878)
+      try {
+        instance[key] =
+          typeof original === 'object' ? cloneDeep_1(original) : original;
+      } catch (e) {
+        instance[key] = original;
+      }
+    }
+  });
+
+  // config is not enumerable
+  instance.config = cloneDeep_1(Vue.config);
+
+  // if a user defined errorHandler is defined by a localVue instance via createLocalVue, register it
+  instance.config.errorHandler = config.errorHandler;
+
+  // option merge strategies need to be exposed by reference
+  // so that merge strats registered by plugins can work properly
+  instance.config.optionMergeStrategies = Vue.config.optionMergeStrategies;
+
+  // make sure all extends are based on this instance.
+  // this is important so that global components registered by plugins,
+  // e.g. router-link are created using the correct base constructor
+  instance.options._base = instance;
+
+  // compat for vue-router < 2.7.1 where it does not allow multiple installs
+  if (instance._installedPlugins && instance._installedPlugins.length) {
+    instance._installedPlugins.length = 0;
+  }
+  var use = instance.use;
+  instance.use = function (plugin) {
+    var rest = [], len = arguments.length - 1;
+    while ( len-- > 0 ) rest[ len ] = arguments[ len + 1 ];
+
+    if (plugin.installed === true) {
+      plugin.installed = false;
+    }
+    if (plugin.install && plugin.install.installed === true) {
+      plugin.install.installed = false;
+    }
+    use.call.apply(use, [ instance, plugin ].concat( rest ));
+  };
+  return instance
+}
+
+// 
+
+function isValidSlot(slot) {
+  return isVueComponent(slot) || typeof slot === 'string'
+}
+
+function requiresTemplateCompiler(slot) {
+  if (typeof slot === 'string' && !compileToFunctions) {
+    throwError(
+      "vueTemplateCompiler is undefined, you must pass " +
+        "precompiled components if vue-template-compiler is " +
+        "undefined"
+    );
+  }
+}
+
+function validateSlots(slots) {
+  Object.keys(slots).forEach(function (key) {
+    var slot = Array.isArray(slots[key]) ? slots[key] : [slots[key]];
+
+    slot.forEach(function (slotValue) {
+      if (!isValidSlot(slotValue)) {
+        throwError(
+          "slots[key] must be a Component, string or an array " +
+            "of Components"
+        );
+      }
+      requiresTemplateCompiler(slotValue);
+    });
+  });
+}
+
+function vueExtendUnsupportedOption(option) {
+  return (
+    "options." + option + " is not supported for " +
+    "components created with Vue.extend in Vue < 2.3. " +
+    "You can set " + option + " to false to mount the component."
+  )
+}
+// these options aren't supported if Vue is version < 2.3
+// for components using Vue.extend. This is due to a bug
+// that means the mixins we use to add properties are not applied
+// correctly
+var UNSUPPORTED_VERSION_OPTIONS = ['mocks', 'stubs', 'localVue'];
+
+function validateOptions(options, component) {
+  if (
+    options.attachTo &&
+    !isHTMLElement(options.attachTo) &&
+    !isDomSelector(options.attachTo)
+  ) {
+    throwError(
+      "options.attachTo should be a valid HTMLElement or CSS selector string"
+    );
+  }
+  if ('attachToDocument' in options) {
+    warnDeprecated(
+      "options.attachToDocument is deprecated in favor of options.attachTo and will be removed in a future release"
+    );
+  }
+  if (options.parentComponent && !isPlainObject(options.parentComponent)) {
+    throwError(
+      "options.parentComponent should be a valid Vue component options object"
+    );
+  }
+
+  if (!isFunctionalComponent(component) && options.context) {
+    throwError(
+      "mount.context can only be used when mounting a functional component"
+    );
+  }
+
+  if (options.context && !isPlainObject(options.context)) {
+    throwError('mount.context must be an object');
+  }
+
+  if (VUE_VERSION < 2.3 && isConstructor(component)) {
+    UNSUPPORTED_VERSION_OPTIONS.forEach(function (option) {
+      if (options[option]) {
+        throwError(vueExtendUnsupportedOption(option));
+      }
+    });
+  }
+
+  if (options.slots) {
+    compileTemplateForSlots(options.slots);
+    // validate slots outside of the createSlots function so
+    // that we can throw an error without it being caught by
+    // the Vue error handler
+    // $FlowIgnore
+    validateSlots(options.slots);
+  }
+}
+
+Vue.config.productionTip = false;
+Vue.config.devtools = false;
+
+function mount(component, options) {
+  if ( options === void 0 ) options = {};
+
+  warnIfNoWindow();
+
+  polyfill();
+
+  addGlobalErrorHandler(Vue);
+
+  var _Vue = _createLocalVue(
+    options.localVue,
+    options.localVue ? options.localVue.config : undefined
+  );
+
+  var mergedOptions = mergeOptions(options, config);
+
+  validateOptions(mergedOptions, component);
+
+  var parentVm = createInstance(component, mergedOptions, _Vue);
+
+  var el =
+    options.attachToDocument || options.attachTo instanceof HTMLBodyElement
+      ? createElement()
+      : options.attachTo;
+  var vm = parentVm.$mount(el);
+
+  component._Ctor = {};
+
+  throwIfInstancesThrew(vm);
+
+  var wrapperOptions = {
+    attachedToDocument: !!el
+  };
+
+  var root = parentVm.$options._isFunctionalContainer
+    ? vm._vnode
+    : vm.$children[0];
+
+  return createWrapper(root, wrapperOptions)
+}
+
+// 
+
+
+function shallowMount(
+  component,
+  options
+) {
+  if ( options === void 0 ) options = {};
+
+  return mount(component, Object.assign({}, options,
+    {shouldProxy: true}))
+}
+
+// 
+
+/**
+ * Returns a local vue instance to add components, mixins and install plugins without polluting the global Vue class
+ * @param {VueConfig} config
+ * @returns {Component}
+ */
+function createLocalVue(config) {
+  if ( config === void 0 ) config = {};
+
+  return _createLocalVue(undefined, config)
+}
+
+// 
+var toTypes = [String, Object];
+var eventTypes = [String, Array];
+
+var RouterLinkStub = {
+  name: 'RouterLinkStub',
+  props: {
+    to: {
+      type: toTypes,
+      required: true
+    },
+    tag: {
+      type: String,
+      default: 'a'
+    },
+    exact: Boolean,
+    exactPath: Boolean,
+    append: Boolean,
+    replace: Boolean,
+    activeClass: String,
+    exactActiveClass: String,
+    exactPathActiveClass: String,
+    event: {
+      type: eventTypes,
+      default: 'click'
+    }
+  },
+  render: function render(h) {
+    return h(this.tag, undefined, this.$slots.default)
+  }
+};
+
+function shallow(component, options) {
+  warn(
+    "shallow has been renamed to shallowMount. shallow " +
+      "will be removed in 1.0.0, use shallowMount instead"
+  );
+  return shallowMount(component, options)
+}
+
+export { ErrorWrapper, RouterLinkStub, Wrapper, WrapperArray, config, createLocalVue, createWrapper, enableAutoDestroy, mount, resetAutoDestroyState, shallow, shallowMount };
diff --git a/packages/test-utils/dist/vue-test-utils.iife.js b/packages/test-utils/dist/vue-test-utils.iife.js
index e895cdb74..d2ad58734 100644
--- a/packages/test-utils/dist/vue-test-utils.iife.js
+++ b/packages/test-utils/dist/vue-test-utils.iife.js
@@ -9015,7 +9015,15 @@ var VueTestUtils = (function (exports, Vue, vueTemplateCompiler) {
    */
 
   function isStyleVisible(element) {
-    var ref = element.style;
+    if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+      return false
+    }
+
+    // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+    // getComputedStyle should only work with connected elements.
+    var ref = element.isConnected
+      ? getComputedStyle(element)
+      : element.style;
     var display = ref.display;
     var visibility = ref.visibility;
     var opacity = ref.opacity;
diff --git a/packages/test-utils/dist/vue-test-utils.js b/packages/test-utils/dist/vue-test-utils.js
index 861e0f043..c577f2e63 100644
--- a/packages/test-utils/dist/vue-test-utils.js
+++ b/packages/test-utils/dist/vue-test-utils.js
@@ -9019,7 +9019,15 @@ ErrorWrapper.prototype.destroy = function destroy () {
  */
 
 function isStyleVisible(element) {
-  var ref = element.style;
+  if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+    return false
+  }
+
+  // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+  // getComputedStyle should only work with connected elements.
+  var ref = element.isConnected
+    ? getComputedStyle(element)
+    : element.style;
   var display = ref.display;
   var visibility = ref.visibility;
   var opacity = ref.opacity;
diff --git a/packages/test-utils/dist/vue-test-utils.umd.js b/packages/test-utils/dist/vue-test-utils.umd.js
index 06188d136..23eae2145 100644
--- a/packages/test-utils/dist/vue-test-utils.umd.js
+++ b/packages/test-utils/dist/vue-test-utils.umd.js
@@ -9018,7 +9018,15 @@
    */
 
   function isStyleVisible(element) {
-    var ref = element.style;
+    if (!(element instanceof HTMLElement) && !(element instanceof SVGElement)) {
+      return false
+    }
+
+    // Per https://lists.w3.org/Archives/Public/www-style/2018May/0031.html
+    // getComputedStyle should only work with connected elements.
+    var ref = element.isConnected
+      ? getComputedStyle(element)
+      : element.style;
     var display = ref.display;
     var visibility = ref.visibility;
     var opacity = ref.opacity;
diff --git a/packages/test-utils/package.json b/packages/test-utils/package.json
index cdc7f06fa..65f6450ea 100644
--- a/packages/test-utils/package.json
+++ b/packages/test-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vue/test-utils",
-  "version": "1.3.0",
+  "version": "1.3.1",
   "description": "Utilities for testing Vue components.",
   "main": "dist/vue-test-utils.js",
   "module": "dist/vue-test-utils.esm.js",