Virtually dispatched scavengers

src/mark-compact.cc

 // Copyright 2006-2008 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 407 matching lines @@
 
 
 void MarkCompactCollector::MarkMapContents(Map* map) {
   MarkDescriptorArray(reinterpret_cast<DescriptorArray*>(
       *HeapObject::RawField(map, Map::kInstanceDescriptorsOffset)));
 
   // Mark the Object* fields of the Map.
   // Since the descriptor array has been marked already, it is fine
   // that one of these fields contains a pointer to it.
   MarkingVisitor visitor;  // Has no state or contents.
-  visitor.VisitPointers(HeapObject::RawField(map, Map::kPrototypeOffset),
-                        HeapObject::RawField(map, Map::kSize));
+  visitor.VisitPointers(HeapObject::RawField(map,
+                                             Map::kPointerFieldsBeginOffset),
+                        HeapObject::RawField(map,
+                                             Map::kPointerFieldsEndOffset));
 }
 
 
 void MarkCompactCollector::MarkDescriptorArray(
     DescriptorArray* descriptors) {
   if (descriptors->IsMarked()) return;
   // Empty descriptor array is marked as a root before any maps are marked.
   ASSERT(descriptors != Heap::raw_unchecked_empty_descriptor_array());
   SetMark(descriptors);
 
@@ skipping 1875 matching lines @@
 #ifdef ENABLE_LOGGING_AND_PROFILING
   if (obj->IsCode()) {
     PROFILE(CodeDeleteEvent(obj->address()));
   } else if (obj->IsJSFunction()) {
     PROFILE(FunctionDeleteEvent(obj->address()));
   }
 #endif
 }
 
 } }  // namespace v8::internal