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Add regression test

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This commit is contained in:
Anders Hejlsberg 2018-08-21 16:17:14 -07:00
parent 7740822d02
commit db9c202b64
1 changed files with 5 additions and 0 deletions
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5
tests/cases/compiler/infiniteConstraints.ts
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@ -31,3 +31,8 @@ const noError = ensureNoDuplicates({main: value("test"), alternate: value("test2
const shouldBeNoError = ensureNoDuplicates({main: value("test")});
const shouldBeError = ensureNoDuplicates({main: value("dup"), alternate: value("dup")});
// Repro from #26448
type Cond<T> = T extends number ? number : never;
declare function function1<T extends {[K in keyof T]: Cond<T[K]>}>(): T[keyof T]["foo"];