Allow to define accessors on objects.

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 381 matching lines @@
   }
   CALL_HEAP_FUNCTION(object->SetElement(index, *value), Object);
 }
 
 
 Handle<JSObject> Copy(Handle<JSObject> obj) {
   CALL_HEAP_FUNCTION(Heap::CopyJSObject(*obj), JSObject);
 }
 
 
+Handle<Object> SetAccessor(Handle<JSObject> obj, Handle<AccessorInfo> info) {
+  CALL_HEAP_FUNCTION(obj->DefineAccessor(*info), Object);
+}
+
+
 // Wrappers for scripts are kept alive and cached in weak global
 // handles referred from proxy objects held by the scripts as long as
 // they are used. When they are not used anymore, the garbage
 // collector will call the weak callback on the global handle
 // associated with the wrapper and get rid of both the wrapper and the
 // handle.
 static void ClearWrapperCache(Persistent<v8::Value> handle, void*) {
 #ifdef ENABLE_HEAP_PROTECTION
   // Weak reference callbacks are called as if from outside V8.  We
   // need to reeenter to unprotect the heap.
@@ skipping 385 matching lines @@
 
 OptimizedObjectForAddingMultipleProperties::
 ~OptimizedObjectForAddingMultipleProperties() {
   // Reoptimize the object to allow fast property access.
   if (has_been_transformed_) {
     TransformToFastProperties(object_, unused_property_fields_);
   }
 }
 
 } }  // namespace v8::internal