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[object-stats] Handle cleared weak values

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Bug: v8:7760
Change-Id: I5589b873845d614a4751b12319c61c91aae04a84
Reviewed-on: https://chromium-review.googlesource.com/1070829
Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#53318}
This commit is contained in:
Michael Lippautz 2018-05-24 09:55:39 +09:00 committed by Commit Bot
parent 59719247df
commit 7fe2d8854a
1 changed files with 2 additions and 0 deletions
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2
src/heap/object-stats.cc
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@ -534,6 +534,8 @@ void ObjectStatsCollectorImpl::RecordVirtualJSObjectDetails(JSObject* object) {
static ObjectStats::VirtualInstanceType GetFeedbackSlotType(
MaybeObject* maybe_obj, FeedbackSlotKind kind, Isolate* isolate) {
if (maybe_obj->IsClearedWeakHeapObject())
return ObjectStats::FEEDBACK_VECTOR_SLOT_OTHER_TYPE;
Object* obj = maybe_obj->GetHeapObjectOrSmi();
switch (kind) {
case FeedbackSlotKind::kCall: