Implement in-heap backing store for typed arrays.

src/objects-visiting.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 29 matching lines @@
 // field which contains an index of specialized visitor to use.
 
 namespace v8 {
 namespace internal {
 
 
 // Base class for all static visitors.
 class StaticVisitorBase : public AllStatic {
  public:
 #define VISITOR_ID_LIST(V)    \
-  V(SeqOneByteString)           \
+  V(SeqOneByteString)         \
   V(SeqTwoByteString)         \
   V(ShortcutCandidate)        \
   V(ByteArray)                \
   V(FreeSpace)                \
   V(FixedArray)               \
   V(FixedDoubleArray)         \
+  V(FixedTypedArray)          \
   V(ConstantPoolArray)        \
   V(NativeContext)            \
   V(AllocationSite)           \
   V(DataObject2)              \
   V(DataObject3)              \
   V(DataObject4)              \
   V(DataObject5)              \
   V(DataObject6)              \
   V(DataObject7)              \
   V(DataObject8)              \
@@ skipping 248 matching lines @@
 
   INLINE(static int VisitByteArray(Map* map, HeapObject* object)) {
     return reinterpret_cast<ByteArray*>(object)->ByteArraySize();
   }
 
   INLINE(static int VisitFixedDoubleArray(Map* map, HeapObject* object)) {
     int length = reinterpret_cast<FixedDoubleArray*>(object)->length();
     return FixedDoubleArray::SizeFor(length);
   }
 
+  INLINE(static int VisitFixedTypedArray(Map* map, HeapObject* object)) {
+    return reinterpret_cast<FixedTypedArrayBase*>(object)->size();
+  }
+
   INLINE(static int VisitJSObject(Map* map, HeapObject* object)) {
     return JSObjectVisitor::Visit(map, object);
   }
 
   INLINE(static int VisitSeqOneByteString(Map* map, HeapObject* object)) {
     return SeqOneByteString::cast(object)->
         SeqOneByteStringSize(map->instance_type());
   }
 
   INLINE(static int VisitSeqTwoByteString(Map* map, HeapObject* object)) {
@@ skipping 136 matching lines @@
 
 
 template<typename StaticVisitor>
 VisitorDispatchTable<typename StaticMarkingVisitor<StaticVisitor>::Callback>
     StaticMarkingVisitor<StaticVisitor>::table_;
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_VISITING_H_