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camc314
53f9295ac5
## Summary - emit `any | undefined` for default-initialized `any` parameters followed by required parameters - add a regression fixture for #25290 and update the existing parameter snapshot - preserve the existing handling of `unknown` Closes #25290
47 lines
1.8 KiB
TypeScript
47 lines
1.8 KiB
TypeScript
// Correct
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export function fnDeclGood(p: T = [], rParam = ""): void { };
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export function fnDeclGood2(p: T = [], rParam?: number): void { };
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export function fooGood([a, b]: any[] = [1, 2]): number {
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return 2;
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}
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export const fooGood2 = ({a, b}: object = { a: 1, b: 2 }): number => {
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return 2;
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}
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const x = 42;
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const y = '';
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export function fooGood3({a = x, b: [{c = y}]}: object): void {}
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// Incorrect
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export function fnDeclBad<T>(p: T = [], rParam: T = "", r2: T): void { }
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export function fnDeclBad2<T>(p: T = [], r2: T): void { }
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export function fnDeclBad3<T>(p: T = [], r2: T, rParam?: T): void { }
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export function fooBad([a, b] = [1, 2]): number {
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return 2;
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}
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export const fooBad2 = ({a, b} = { a: 1, b: 2 }): number => {
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return 2;
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}
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export function withAny(a: any = 1, b: string): void { }
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export function withAnyUnion(a: any | string = 1, b: string): void { }
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export function withAnyArrayUnion(a: any | number[] = [], b: string): void { }
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export function withAnyUndefinedUnion(a: any | undefined = 1, b: string): void { }
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type Foo = {};
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export function withAnyTypeReferenceUnion(a: any | Foo = {}, b: string): void { }
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export function withAnyTypeReferenceUndefinedUnion(a: any | Foo | undefined = {}, b: string): void { }
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export function withAnyTypeOperatorUnion(a: any | keyof {} = 1, b: string): void { }
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export function withAnyIntersectionTypeReferenceUnion(a: any | (Foo & {}) = {}, b: string): void { }
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export function withUnknown(a: unknown = 1, b: string): void { }
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export function withUnknownUnion(a: unknown | string = 1, b: string): void { }
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export function withTypeAssertion(a = /regular-repression-cannot-infer/ as any): void { }
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export function restWithDefault(...[value, options = {}]: [string, object]): void { }
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export function restWithNestedDefault(...[a, { b = 1, c = 2 }]: [number, { b: number, c: number }]): void { }
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