1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "gin/public/wrapper_info.h"
6
7namespace gin {
8
9WrapperInfo* WrapperInfo::From(v8::Handle<v8::Object> object) {
10  if (object->InternalFieldCount() != kNumberOfInternalFields)
11    return NULL;
12  WrapperInfo* info = static_cast<WrapperInfo*>(
13      object->GetAlignedPointerFromInternalField(kWrapperInfoIndex));
14  return info->embedder == kEmbedderNativeGin ? info : NULL;
15}
16
17}  // namespace gin
18