09271f107d
* Use nonInferrableAnyType in types inferred from binding patterns * Add regression tests * Accept new baselines
45 lines
1 KiB
TypeScript
45 lines
1 KiB
TypeScript
// @strict: true
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declare function f1<T extends string>(): T;
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declare function f2<T extends string>(): [T];
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declare function f3<T extends string>(): { x: T };
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let x1 = f1(); // string
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let [x2] = f2(); // string
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let { x: x3 } = f3(); // string
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// Repro from #30379
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function foo<T = number>(): [T] {
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return [42 as any]
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}
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const [x] = foo(); // [number]
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// Repro from #35291
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interface SelectProps<T, K> {
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selector?: (obj: T) => K;
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}
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type SelectResult<T, K> = [K, T];
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interface Person {
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name: string;
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surname: string;
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}
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declare function selectJohn<K = Person>(props?: SelectProps<Person, K>): SelectResult<Person, K>;
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const [person] = selectJohn();
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const [any, whatever] = selectJohn();
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const john = selectJohn();
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const [personAgain, nufinspecial] = john;
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// Repro from #35291
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declare function makeTuple<T1>(arg: T1): [T1];
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declare function stringy<T = string>(arg?: T): T;
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const isStringTuple = makeTuple(stringy()); // [string]
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const [isAny] = makeTuple(stringy()); // [string]
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