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fix(scope-manager): correct analysis of inferred types in conditional types #2537

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merged 5 commits into from Sep 16, 2020
Merged

fix(scope-manager): correct analysis of inferred types in conditional types #2537

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90b431a
fix: #2526
dinofx Sep 10, 2020
677582f
Update packages/scope-manager/src/referencer/TypeVisitor.ts
dinofx Sep 14, 2020
29baa0b
Merge branch 'master' into master
dinofx Sep 14, 2020
a264cf9
Added fixture and snapshot
dinofx Sep 14, 2020
5159409
Merge branch 'master' into master
dinofx Sep 16, 2020
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8 changes: 8 additions & 0 deletions packages/eslint-plugin/tests/rules/no-shadow.test.ts
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Expand Up @@ -11,6 +11,14 @@ const ruleTester = new RuleTester({

ruleTester.run('no-shadow TS tests', rule, {
valid: [
// nested conditional types
`
export type ArrayInput<Func> = Func extends (arg0: Array<infer T>) => any
? T[]
: Func extends (...args: infer T) => any
? T
: never;
`,
`
function foo() {
var Object = 0;
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4 changes: 3 additions & 1 deletion packages/scope-manager/src/referencer/TypeVisitor.ts
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Expand Up @@ -94,9 +94,11 @@ class TypeVisitor extends Visitor {
// which are only accessible from inside the conditional parameter
this.#referencer.scopeManager.nestConditionalTypeScope(node);

this.visitChildren(node);
this.visitChildren(node, ['falseType']);
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this.#referencer.close(node);

this.visit(node.falseType);
}

protected TSConstructorType(node: TSESTree.TSConstructorType): void {
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