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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 
7 namespace gin {
8 
From(v8::Handle<v8::Object> object)9 WrapperInfo* 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