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Add regression test

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This commit is contained in:
Anders Hejlsberg
2019-04-13 08:24:27 -10:00
parent b9f805f2f4
commit 2c951b3ca9
1 changed files with 5 additions and 0 deletions
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5
tests/cases/conformance/types/intersection/intersectionWithUnionConstraint.ts
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@@ -34,3 +34,8 @@ type Example<T, U> = { [K in keyof T]: K extends keyof U ? UnexpectedError<K> :
type UnexpectedError<T extends PropertyKey> = T
type NoErrorHere<T extends PropertyKey> = T
// Repro from #30331
type a<T> = T extends Array<infer U> ? U : never;
type b<T> = { [K in a<T> & keyof T ]: 42 };