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Add additional test

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This commit is contained in:
Anders Hejlsberg 2019-08-16 07:45:02 -07:00
parent ac2f151412
commit c816cf2562
1 changed files with 9 additions and 0 deletions
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9
tests/cases/conformance/types/typeRelationships/typeInference/unionTypeInference.ts
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@ -69,3 +69,12 @@ async function fun<T>(deepPromised: DeepPromised<T>) {
await fun(awaitedValue);
}
}
// Repro from #32752
type Deep<T> = { [K in keyof T]: T[K] | Deep<T[K]> };
declare function baz<T>(dp: Deep<T>): T;
declare let xx: { a: string | undefined };
baz(xx);