Weak Cells

src/heap/objects-visiting.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
 
 // This file provides base classes and auxiliary methods for defining
@@ skipping 53 matching lines @@
   V(Struct9)               \
   V(StructGeneric)         \
   V(ConsString)            \
   V(SlicedString)          \
   V(Symbol)                \
   V(Oddball)               \
   V(Code)                  \
   V(Map)                   \
   V(Cell)                  \
   V(PropertyCell)          \
+  V(WeakCell)              \
   V(SharedFunctionInfo)    \
   V(JSFunction)            \
   V(JSWeakCollection)      \
   V(JSArrayBuffer)         \
   V(JSTypedArray)          \
   V(JSDataView)            \
   V(JSRegExp)
 
   // For data objects, JS objects and structs along with generic visitor which
   // can visit object of any size we provide visitors specialized by
@@ skipping 271 matching lines @@
 template <typename StaticVisitor>
 class StaticMarkingVisitor : public StaticVisitorBase {
  public:
   static void Initialize();
 
   INLINE(static void IterateBody(Map* map, HeapObject* obj)) {
     table_.GetVisitor(map)(map, obj);
   }
 
   INLINE(static void VisitPropertyCell(Map* map, HeapObject* object));
+  INLINE(static void VisitWeakCell(Map* map, HeapObject* object));
   INLINE(static void VisitCodeEntry(Heap* heap, Address entry_address));
   INLINE(static void VisitEmbeddedPointer(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCell(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitDebugTarget(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCodeTarget(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitCodeAgeSequence(Heap* heap, RelocInfo* rinfo));
   INLINE(static void VisitExternalReference(RelocInfo* rinfo)) {}
   INLINE(static void VisitRuntimeEntry(RelocInfo* rinfo)) {}
   // Skip the weak next code link in a code object.
   INLINE(static void VisitNextCodeLink(Heap* heap, Object** slot)) {}
@@ skipping 68 matching lines @@
 // the next element. Given the head of the list, this function removes dead
 // elements from the list and if requested records slots for next-element
 // pointers. The template parameter T is a WeakListVisitor that defines how to
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer);
 }
 }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_