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Unified Diff: src/objects.cc

Issue 1491743010: Reland of [proxies] Make Object.prototype.isPrototypeOf work with proxies. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years ago
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Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 5bf38b462484ff077c0860f47082afc5fea5534d..6bebf59545e4e573f4960b83ffc8924bf4497e29 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -1283,12 +1283,13 @@
}
-bool Object::HasInPrototypeChain(Isolate* isolate, Object* target) {
- PrototypeIterator iter(isolate, this, PrototypeIterator::START_AT_RECEIVER);
+Maybe<bool> Object::HasInPrototypeChain(Isolate* isolate, Handle<Object> object,
+ Handle<Object> proto) {
+ PrototypeIterator iter(isolate, object, PrototypeIterator::START_AT_RECEIVER);
while (true) {
- iter.AdvanceIgnoringProxies();
- if (iter.IsAtEnd()) return false;
- if (iter.IsAtEnd(target)) return true;
+ if (!iter.AdvanceFollowingProxies()) return Nothing<bool>();
+ if (iter.IsAtEnd()) return Just(false);
+ if (iter.IsAtEnd(proto)) return Just(true);
}
}
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