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Simplify isValidSpreadType

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This commit is contained in:
Mohamed Hegazy
2016-11-29 16:57:37 -08:00
parent 2152683325
commit 505c153fed
1 changed files with 3 additions and 15 deletions
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18
src/compiler/checker.ts
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@@ -11539,21 +11539,9 @@ namespace ts {
}
function isValidSpreadType(type: Type): boolean {
if (type.flags & (TypeFlags.Any | TypeFlags.Null | TypeFlags.Undefined)) {
return true;
}
if (type.flags & TypeFlags.Object) {
return !isGenericMappedType(type);
}
else if (type.flags & TypeFlags.UnionOrIntersection) {
for (const t of (<UnionOrIntersectionType>type).types) {
if (!isValidSpreadType(t)) {
return false;
}
}
return true;
}
return false;
return !!(type.flags & (TypeFlags.Any | TypeFlags.Null | TypeFlags.Undefined) ||
type.flags & TypeFlags.Object && !isGenericMappedType(type) ||
type.flags & TypeFlags.UnionOrIntersection && !forEach((<UnionOrIntersectionType>type).types, t => !isValidSpreadType(t)));
}
function checkJsxSelfClosingElement(node: JsxSelfClosingElement) {