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Do not reduce subtypes of awaited union type

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Ron Buckton
2017-10-16 14:26:16 -07:00
parent 22769d95e1
commit 9563246993
5 changed files with 252 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -19680,7 +19680,7 @@ namespace ts {
return undefined;
}
return typeAsAwaitable.awaitedTypeOfType = getUnionType(types, /*subtypeReduction*/ true);
return typeAsAwaitable.awaitedTypeOfType = getUnionType(types);
}
const promisedType = getPromisedTypeOfPromise(type);