Optimize calls to object literal properties that are initialized with a funct...

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 849 matching lines @@
 
 
 bool CompileOptimized(Handle<JSFunction> function, int osr_ast_id) {
   CompilationInfo info(function);
   info.SetOptimizing(osr_ast_id);
   bool result = CompileLazyHelper(&info, KEEP_EXCEPTION);
   if (result) PROFILE(FunctionCreateEvent(*function));
   return result;
 }
 
-
-OptimizedObjectForAddingMultipleProperties::
-OptimizedObjectForAddingMultipleProperties(Handle<JSObject> object,
-                                           int expected_additional_properties,
-                                           bool condition) {
-  object_ = object;
-  if (condition && object_->HasFastProperties()) {
-    // Normalize the properties of object to avoid n^2 behavior
-    // when extending the object multiple properties. Indicate the number of
-    // properties to be added.
-    unused_property_fields_ = object->map()->unused_property_fields();
-    NormalizeProperties(object_,
-                        KEEP_INOBJECT_PROPERTIES,
-                        expected_additional_properties);
-    has_been_transformed_ = true;
-
-  } else {
-    has_been_transformed_ = false;
-  }
-}
-
-
-OptimizedObjectForAddingMultipleProperties::
-~OptimizedObjectForAddingMultipleProperties() {
-  // Reoptimize the object to allow fast property access.
-  if (has_been_transformed_) {
-    TransformToFastProperties(object_, unused_property_fields_);
-  }
-}
-
 } }  // namespace v8::internal