8000 fix(eslint-plugin): [unbound-method] allow `super` expressions in `this` assignments by armano2 · Pull Request #3010 · typescript-eslint/typescript-eslint · GitHub
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fix(eslint-plugin): [unbound-method] allow super expressions in this assignments #3010

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Merged
merged 7 commits into from
Feb 28, 2021
Merged

fix(eslint-plugin): [unbound-method] allow super expressions in this assignments #3010

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d2bdf81
chore: ignores super methods
anikethsaha Apr 17, 2020
eca791d
chore: removed comments
anikethsaha Apr 21, 2020
b6e1d40
chore: options for allowSuper
anikethsaha Apr 21, 2020
d7b8a6c
chore: refactored the docs and formatting
anikethsaha Apr 21, 2020
9ea3e5d
fix(eslint-plugin): remove allowSuper, update tests and rebase code
armano2 Feb 7, 2021
c047e51
fix(eslint-plugin): remove invalid doc changes
armano2 Feb 7, 2021
1a24d0c
fix(eslint-plugin): improve safeuse check
armano2 Feb 8, 2021
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9 changes: 8 additions & 1 deletion packages/eslint-plugin/src/rules/unbound-method.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -305,7 +305,14 @@ function isSafeUse(node: TSESTree.Node): boolean {
return ['instanceof', '==', '!=', '===', '!=='].includes(parent.operator);

case AST_NODE_TYPES.AssignmentExpression:
return parent.operator === '=' && node === parent.left;
return (
parent.operator === '=' &&
(node === parent.left ||
(node.type === AST_NODE_TYPES.MemberExpression &&
node.object.type === AST_NODE_TYPES.Super &&
parent.left.type === AST_NODE_TYPES.MemberExpression &&
parent.left.object.type === AST_NODE_TYPES.ThisExpression))
);

case AST_NODE_TYPES.ChainExpression:
case AST_NODE_TYPES.TSNonNullExpression:
Expand Down
59 changes: 59 additions & 0 deletions packages/eslint-plugin/tests/rules/unbound-method.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -265,6 +265,22 @@ class Foo {
}
const { bound } = new Foo();
`,
// https://github.com/typescript-eslint/typescript-eslint/issues/1866
`
class BaseClass {
x: number = 42;
logThis() {}
}
class OtherClass extends BaseClass {
superLogThis: any;
constructor() {
super();
this.superLogThis = super.logThis;
}
}
const oc = new OtherClass();
oc.superLogThis();
`,
],
invalid: [
{
Expand Down Expand Up @@ -529,5 +545,48 @@ const { log } = console;
},
],
},
// https://github.com/typescript-eslint/typescript-eslint/issues/1866
{
code: `
class BaseClass {
logThis() {}
}
class OtherClass extends BaseClass {
constructor() {
super();
const x = super.logThis;
}
}
`,
errors: [
{
line: 8,
column: 15,
messageId: 'unbound',
},
],
},
// https://github.com/typescript-eslint/typescript-eslint/issues/1866
{
code: `
class BaseClass {
logThis() {}
}
class OtherClass extends BaseClass {
constructor() {
super();
let x;
x = super.logThis;
}
}
`,
errors: [
{
line: 9,
column: 9,
messageId: 'unbound',
},
],
},
],
});
0