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Use getObjectFlags as suggested in previous PR.

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This commit is contained in:
Daniel Rosenwasser 2018-06-21 13:51:12 -07:00
parent 6d755aa301
commit a5b9a4c5ea
1 changed files with 5 additions and 3 deletions
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8
src/compiler/checker.ts
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@ -10861,13 +10861,15 @@ namespace ts {
}
function findMatchingTypeReferenceOrTypeAliasReference(source: Type, unionTarget: UnionOrIntersectionType) {
if (source.flags & TypeFlags.Object && (source as ObjectType).objectFlags & (ObjectFlags.Reference | ObjectFlags.Anonymous) && unionTarget.flags & TypeFlags.Union) {
const sourceObjectFlags = getObjectFlags(source);
if (sourceObjectFlags & (ObjectFlags.Reference | ObjectFlags.Anonymous) && unionTarget.flags & TypeFlags.Union) {
return find(unionTarget.types, target => {
if (target.flags & TypeFlags.Object) {
if ((source as ObjectType).objectFlags & (target as ObjectType).objectFlags & ObjectFlags.Reference) {
const overlapObjFlags = sourceObjectFlags & getObjectFlags(target);
if (overlapObjFlags & ObjectFlags.Reference) {
return (source as TypeReference).target === (target as TypeReference).target;
}
if ((source as ObjectType).objectFlags & (target as ObjectType).objectFlags & ObjectFlags.Anonymous) {
if (overlapObjFlags & ObjectFlags.Anonymous) {
return !!(source as AnonymousType).aliasSymbol && (source as AnonymousType).aliasSymbol === (target as AnonymousType).aliasSymbol;
}
}