Introduced PropertyType ACCESSOR_FIELD.

src/heap-snapshot-generator.cc

Index: src/heap-snapshot-generator.cc
diff --git a/src/heap-snapshot-generator.cc b/src/heap-snapshot-generator.cc
index b7b290e363b52b123a405786c50e4fa028b96b1d..196eb130a5d81d24a4da525b77dbdd48362fb80e 100644
--- a/src/heap-snapshot-generator.cc
+++ b/src/heap-snapshot-generator.cc
@@ -1626,50 +1626,32 @@ void V8HeapExplorer::ExtractPropertyReferences(JSObject* js_obj, int entry) {
     DescriptorArray* descs = js_obj->map()->instance_descriptors();
     int real_size = js_obj->map()->NumberOfOwnDescriptors();
     for (int i = 0; i < real_size; i++) {
-      switch (descs->GetType(i)) {
-        case FIELD: {
-          Representation r = descs->GetDetails(i).representation();
+      PropertyDetails details = descs->GetDetails(i);
+      switch (details.location()) {
+        case IN_OBJECT: {
+          Representation r = details.representation();
           if (r.IsSmi() || r.IsDouble()) break;
-          int index = descs->GetFieldIndex(i);
 
           Name* k = descs->GetKey(i);
-          if (index < js_obj->map()->inobject_properties()) {
-            Object* value = js_obj->InObjectPropertyAt(index);
-            if (k != heap_->hidden_string()) {
-              SetPropertyReference(
-                  js_obj, entry,
-                  k, value,
-                  NULL,
-                  js_obj->GetInObjectPropertyOffset(index));
-            } else {
-              TagObject(value, "(hidden properties)");
-              SetInternalReference(
-                  js_obj, entry,
-                  "hidden_properties", value,
-                  js_obj->GetInObjectPropertyOffset(index));
-            }
+          FieldIndex field_index = FieldIndex::ForDescriptor(js_obj->map(), i);
+          Object* value = js_obj->RawFastPropertyAt(field_index);
+          int field_offset =
+              field_index.is_inobject() ? field_index.offset() : -1;
+
+          if (k != heap_->hidden_string()) {
+            SetDataOrAccessorPropertyReference(details.kind(), js_obj, entry, k,
+                                               value, NULL, field_offset);
           } else {
-            FieldIndex field_index =
-                FieldIndex::ForDescriptor(js_obj->map(), i);
-            Object* value = js_obj->RawFastPropertyAt(field_index);
-            if (k != heap_->hidden_string()) {
-              SetPropertyReference(js_obj, entry, k, value);
-            } else {
-              TagObject(value, "(hidden properties)");
-              SetInternalReference(js_obj, entry, "hidden_properties", value);
-            }
+            TagObject(value, "(hidden properties)");
+            SetInternalReference(js_obj, entry, "hidden_properties", value,
+                                 field_offset);
           }
           break;
         }
-        case CONSTANT:
-          SetPropertyReference(
-              js_obj, entry,
-              descs->GetKey(i), descs->GetConstant(i));
-          break;
-        case CALLBACKS:
-          ExtractAccessorPairProperty(
-              js_obj, entry,
-              descs->GetKey(i), descs->GetValue(i));
+        case IN_DESCRIPTOR:
+          SetDataOrAccessorPropertyReference(details.kind(), js_obj, entry,
+                                             descs->GetKey(i),
+                                             descs->GetValue(i));
           break;
       }
     }
@@ -1689,27 +1671,30 @@ void V8HeapExplorer::ExtractPropertyReferences(JSObject* js_obj, int entry) {
           SetInternalReference(js_obj, entry, "hidden_properties", value);
           continue;
         }
-        if (ExtractAccessorPairProperty(js_obj, entry, k, value)) continue;
-        SetPropertyReference(js_obj, entry, Name::cast(k), value);
+        PropertyDetails details = dictionary->DetailsAt(i);
+        SetDataOrAccessorPropertyReference(details.kind(), js_obj, entry,
+                                           Name::cast(k), value);
       }
     }
   }
 }
 
 
-bool V8HeapExplorer::ExtractAccessorPairProperty(
-    JSObject* js_obj, int entry, Object* key, Object* callback_obj) {
-  if (!callback_obj->IsAccessorPair()) return false;
+void V8HeapExplorer::ExtractAccessorPairProperty(JSObject* js_obj, int entry,
+                                                 Name* key,
+                                                 Object* callback_obj,
+                                                 int field_offset) {
+  if (!callback_obj->IsAccessorPair()) return;
   AccessorPair* accessors = AccessorPair::cast(callback_obj);
+  SetPropertyReference(js_obj, entry, key, accessors, NULL, field_offset);
   Object* getter = accessors->getter();
   if (!getter->IsOddball()) {
-    SetPropertyReference(js_obj, entry, Name::cast(key), getter, "get %s");
+    SetPropertyReference(js_obj, entry, key, getter, "get %s");
   }
   Object* setter = accessors->setter();
   if (!setter->IsOddball()) {
-    SetPropertyReference(js_obj, entry, Name::cast(key), setter, "set %s");
+    SetPropertyReference(js_obj, entry, key, setter, "set %s");
   }
-  return true;
 }
 
 
@@ -2048,6 +2033,20 @@ void V8HeapExplorer::SetWeakReference(HeapObject* parent_obj,
 }
 
 
+void V8HeapExplorer::SetDataOrAccessorPropertyReference(
+    PropertyKind kind, JSObject* parent_obj, int parent_entry,
+    Name* reference_name, Object* child_obj, const char* name_format_string,
+    int field_offset) {
+  if (kind == ACCESSOR) {
+    ExtractAccessorPairProperty(parent_obj, parent_entry, reference_name,
+                                child_obj, field_offset);
+  } else {
+    SetPropertyReference(parent_obj, parent_entry, reference_name, child_obj,
+                         name_format_string, field_offset);
+  }
+}
+
+
 void V8HeapExplorer::SetPropertyReference(HeapObject* parent_obj,
                                           int parent_entry,
                                           Name* reference_name,