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Consider open types to be object literal types

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This commit is contained in:
Anders Hejlsberg
2016-08-26 15:50:59 -07:00
parent 6acd1b796a
commit 8c2f1e18ff
1 changed files with 4 additions and 3 deletions
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7
src/compiler/checker.ts
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@@ -7242,9 +7242,10 @@ namespace ts {
* with no call or construct signatures.
*/
function isObjectLiteralType(type: Type) {
return type.symbol && (type.symbol.flags & (SymbolFlags.ObjectLiteral | SymbolFlags.TypeLiteral)) !== 0 &&
return !!(type.symbol && type.symbol.flags & (SymbolFlags.ObjectLiteral | SymbolFlags.TypeLiteral) &&
getSignaturesOfType(type, SignatureKind.Call).length === 0 &&
getSignaturesOfType(type, SignatureKind.Construct).length === 0;
getSignaturesOfType(type, SignatureKind.Construct).length === 0 ||
type.flags & TypeFlags.Anonymous && (<AnonymousType>type).assignedMembers);
}
function createTransientSymbol(source: Symbol, type: Type) {
@@ -8218,7 +8219,7 @@ namespace ts {
}
function createOpenType(flowNode: FlowNode, flowContainer: Node): Type {
const result = <AnonymousType>createObjectType(TypeFlags.Anonymous);
const result = <AnonymousType>createObjectType(TypeFlags.Anonymous | TypeFlags.ObjectLiteral);
result.assignedMembers = createMap<Symbol>();
result.flowNode = flowNode;
result.flowContainer = flowContainer;