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Unified Diff: src/objects-inl.h

Issue 955063002: Fix memory leak caused by field type in descriptor array. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Remove unused var in release. Created 5 years, 10 months ago
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Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 4ea0a0819b7fae40a51ae1265bdfd210461531ac..dc739358bce6a2b9c19807d5f0678759c1b30cc4 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -3136,7 +3136,12 @@ int DescriptorArray::GetFieldIndex(int descriptor_number) {
HeapType* DescriptorArray::GetFieldType(int descriptor_number) {
DCHECK(GetDetails(descriptor_number).location() == kField);
- return HeapType::cast(GetValue(descriptor_number));
+ Object* value = GetValue(descriptor_number);
+ if (value->IsWeakCell()) {
+ if (WeakCell::cast(value)->cleared()) return HeapType::Any();
+ value = WeakCell::cast(value)->value();
+ }
+ return HeapType::cast(value);
}
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