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Add regression test

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This commit is contained in:
Anders Hejlsberg 2017-03-23 11:23:26 -07:00
parent f4fc9ed61f
commit 5ea146334a
1 changed files with 9 additions and 0 deletions
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9
tests/cases/compiler/deeplyNestedCheck.ts Normal file
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// Repro from #14794
interface DataSnapshot<X = {}> {
child(path: string): DataSnapshot;
}
interface Snapshot<T> extends DataSnapshot {
child<U extends keyof T>(path: U): Snapshot<T[U]>;
}