Introduce an API to force the deletion of a property ignoring...

src/handles.cc

 // Copyright 2009 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 204 matching lines @@
 
 Handle<Object> ForceSetProperty(Handle<JSObject> object,
                                 Handle<Object> key,
                                 Handle<Object> value,
                                 PropertyAttributes attributes) {
   CALL_HEAP_FUNCTION(
       Runtime::ForceSetObjectProperty(object, key, value, attributes), Object);
 }
 
 
+Handle<Object> ForceDeleteProperty(Handle<JSObject> object,
+                                   Handle<Object> key) {
+  CALL_HEAP_FUNCTION(Runtime::ForceDeleteObjectProperty(object, key), Object);
+}
+
+
 Handle<Object> IgnoreAttributesAndSetLocalProperty(
     Handle<JSObject> object,
     Handle<String> key,
     Handle<Object> value,
     PropertyAttributes attributes) {
   CALL_HEAP_FUNCTION(object->
       IgnoreAttributesAndSetLocalProperty(*key, *value, attributes), Object);
 }
 
+
 Handle<Object> SetPropertyWithInterceptor(Handle<JSObject> object,
                                           Handle<String> key,
                                           Handle<Object> value,
                                           PropertyAttributes attributes) {
   CALL_HEAP_FUNCTION(object->SetPropertyWithInterceptor(*key,
                                                         *value,
                                                         attributes),
                      Object);
 }
 
@@ skipping 57 matching lines @@
     } else {
       return Factory::undefined_value();
     }
   }
   return GetProperty(obj, key);
 }
 
 
 Handle<Object> DeleteElement(Handle<JSObject> obj,
                              uint32_t index) {
-  CALL_HEAP_FUNCTION(obj->DeleteElement(index), Object);
+  CALL_HEAP_FUNCTION(obj->DeleteElement(index, JSObject::NORMAL_DELETION),
+                     Object);
 }
 
 
 Handle<Object> DeleteProperty(Handle<JSObject> obj,
                               Handle<String> prop) {
-  CALL_HEAP_FUNCTION(obj->DeleteProperty(*prop), Object);
+  CALL_HEAP_FUNCTION(obj->DeleteProperty(*prop, JSObject::NORMAL_DELETION),
+                     Object);
 }
 
 
 Handle<Object> LookupSingleCharacterStringFromCode(uint32_t index) {
   CALL_HEAP_FUNCTION(Heap::LookupSingleCharacterStringFromCode(index), Object);
 }
 
 
 Handle<String> SubString(Handle<String> str, int start, int end) {
   CALL_HEAP_FUNCTION(str->Slice(start, end), String);
@@ skipping 404 matching lines @@
   Handle<Map> new_map = Factory::CopyMapDropTransitions(old_map);
   obj->set_map(*new_map);
   new_map->set_needs_loading(true);
   // Store the lazy loading info in the constructor field.  We'll
   // reestablish the constructor from the fixed array after loading.
   new_map->set_constructor(*arr);
   ASSERT(!obj->IsLoaded());
 }
 
 } }  // namespace v8::internal