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Add regression test

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This commit is contained in:
Anders Hejlsberg 2018-09-25 18:17:21 -07:00
parent 5e55118076
commit 4bb5cfb9bb
1 changed files with 12 additions and 0 deletions
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12
tests/cases/conformance/types/typeRelationships/typeInference/bivariantInferences.ts Normal file
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// @strict: true
// Repro from #27337
interface Array<T> {
equalsShallow<T>(this: ReadonlyArray<T>, other: ReadonlyArray<T>): boolean;
}
declare const a: (string | number)[] | null[] | undefined[] | {}[];
declare const b: (string | number)[] | null[] | undefined[] | {}[];
let x = a.equalsShallow(b);