v8::internal::MarkCompactWeakObjectRetainer Class Reference

Inheritance diagram for v8::internal::MarkCompactWeakObjectRetainer:

Collaboration diagram for v8::internal::MarkCompactWeakObjectRetainer:

Public Member Functions
virtual Object *	RetainAs (Object *object)
Public Member Functions inherited from v8::internal::WeakObjectRetainer
virtual	~WeakObjectRetainer ()

Detailed Description

Definition at line 1854 of file mark-compact.cc.

Member Function Documentation

RetainAs()

virtual Object* v8::internal::MarkCompactWeakObjectRetainer::RetainAs ( Object *  object )

inlinevirtual

Implements v8::internal::WeakObjectRetainer.

Definition at line 1856 of file mark-compact.cc.

                                           {
    if (Marking::MarkBitFrom(HeapObject::cast(object)).Get()) {
      return object;
    } else if (object->IsAllocationSite() &&
               !(AllocationSite::cast(object)->IsZombie())) {
      // "dead" AllocationSites need to live long enough for a traversal of new
      // space. These sites get a one-time reprieve.
      AllocationSite* site = AllocationSite::cast(object);
      site->MarkZombie();
      site->GetHeap()->mark_compact_collector()->MarkAllocationSite(site);
      return object;
    } else {
      return NULL;
    }
  }

References v8::internal::HeapObject::GetHeap(), v8::internal::Heap::mark_compact_collector(), v8::internal::MarkCompactCollector::MarkAllocationSite(), v8::internal::AllocationSite::MarkZombie(), and NULL.

Here is the call graph for this function:

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The documentation for this class was generated from the following file:

• /mnt/V8SourceCode/src/heap/mark-compact.cc