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Title: Make type guard function types invariant in the type guarded for. by mattmccutchen · Pull Request #27686 · microsoft/TypeScript · GitHub

Open Graph Title: Make type guard function types invariant in the type guarded for. by mattmccutchen · Pull Request #27686 · microsoft/TypeScript

X Title: Make type guard function types invariant in the type guarded for. by mattmccutchen · Pull Request #27686 · microsoft/TypeScript

Description: TypeScript is a superset of JavaScript that compiles to clean JavaScript output. - Make type guard function types invariant in the type guarded for. by mattmccutchen · Pull Request #27686 · microsoft/TypeScript

Open Graph Description: Fix one break in the compiler, and add a workaround to test case thisPredicateFunctionQuickInfo01, which used a code pattern that no longer works. Fixes #26981.

X Description: Fix one break in the compiler, and add a workaround to test case thisPredicateFunctionQuickInfo01, which used a code pattern that no longer works. Fixes #26981.

Opengraph URL: https://github.com/microsoft/TypeScript/pull/27686

X: @github

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og:image:altFix one break in the compiler, and add a workaround to test case thisPredicateFunctionQuickInfo01, which used a code pattern that no longer works. Fixes #26981.
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Mar 5, 2020https://github.com/microsoft/TypeScript/pull/27686#event-3103043960
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