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22 lines
493 B
TypeScript
22 lines
493 B
TypeScript
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// @strict: true
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// Repro from #28862
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type Foo<A> = { type: "foo", (): A[] };
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type Bar<A> = { type: "bar", (): A };
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type FooBar<A> = Foo<A> | Bar<A>;
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type InferA<T> = T extends FooBar<infer A> ? A : never;
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type FooA = InferA<Foo<number>>; // number
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// Repro from #28862
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type Item<T> = { kind: 'a', data: T } | { kind: 'b', data: T[] };
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declare function foo<T>(item: Item<T>): T;
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let x1 = foo({ kind: 'a', data: 42 }); // number
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let x2 = foo({ kind: 'b', data: [1, 2] }); // number
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