Index: src/objects.h |
diff --git a/src/objects.h b/src/objects.h |
index 4a7dee6a836f9a9614d4b4032097db1274195a82..48cb4953daa61703c3d77a3093e332c3a76bc046 100644 |
--- a/src/objects.h |
+++ b/src/objects.h |
@@ -2899,6 +2899,7 @@ class Code: public HeapObject { |
DISALLOW_IMPLICIT_CONSTRUCTORS(Code); |
}; |
+typedef void (*Scavenger)(Map* map, HeapObject** slot, HeapObject* object); |
// All heap objects have a Map that describes their structure. |
// A Map contains information about: |
@@ -3100,6 +3101,13 @@ class Map: public HeapObject { |
void MapVerify(); |
#endif |
+ inline Scavenger scavenger(); |
+ inline void set_scavenger(Scavenger callback); |
+ |
+ inline void Scavenge(HeapObject** slot, HeapObject* obj) { |
+ scavenger()(this, slot, obj); |
+ } |
+ |
static const int kMaxPreAllocatedPropertyFields = 255; |
// Layout description. |
@@ -3110,7 +3118,8 @@ class Map: public HeapObject { |
static const int kInstanceDescriptorsOffset = |
kConstructorOffset + kPointerSize; |
static const int kCodeCacheOffset = kInstanceDescriptorsOffset + kPointerSize; |
- static const int kPadStart = kCodeCacheOffset + kPointerSize; |
+ static const int kScavengerCallbackOffset = kCodeCacheOffset + kPointerSize; |
+ static const int kPadStart = kScavengerCallbackOffset + kPointerSize; |
static const int kSize = MAP_POINTER_ALIGN(kPadStart); |
// Layout of pointer fields. Heap iteration code relies on them |