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Leverage existing function for choosing spread validity (#21564)

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This commit is contained in:
Wesley Wigham
2018-02-02 10:11:50 -08:00
committed by GitHub
parent 8b81d19b6d
commit b3ec8cce00
5 changed files with 114 additions and 1 deletions
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2
src/compiler/checker.ts
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@@ -17603,7 +17603,7 @@ namespace ts {
const anonymousSymbol = createSymbol(SymbolFlags.TypeLiteral, InternalSymbolName.Type);
const defaultContainingObject = createAnonymousType(anonymousSymbol, memberTable, emptyArray, emptyArray, /*stringIndexInfo*/ undefined, /*numberIndexInfo*/ undefined);
anonymousSymbol.type = defaultContainingObject;
synthType.syntheticType = (type.flags & TypeFlags.StructuredType && type.symbol.flags & (SymbolFlags.Module | SymbolFlags.Variable)) ? getSpreadType(type, defaultContainingObject, anonymousSymbol, /*propegatedFlags*/ 0) : defaultContainingObject;
synthType.syntheticType = isValidSpreadType(type) ? getSpreadType(type, defaultContainingObject, anonymousSymbol, /*propegatedFlags*/ 0) : defaultContainingObject;
}
else {
synthType.syntheticType = type;