Home | History | Annotate | Download | only in API 
      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef JSWeakObjectMapRefInternal_h
     27 #define JSWeakObjectMapRefInternal_h
     28 
     29 #include "WeakGCMap.h"
     30 #include <wtf/RefCounted.h>
     31 
     32 namespace JSC {
     33 
     34 class JSObject;
     35 
     36 }
     37 
     38 typedef void (*JSWeakMapDestroyedCallback)(struct OpaqueJSWeakObjectMap*, void*);
     39 
     40 typedef JSC::WeakGCMap<void*, JSC::JSObject> WeakMapType;
     41 
     42 struct OpaqueJSWeakObjectMap : public RefCounted<OpaqueJSWeakObjectMap> {
     43 public:
     44     static PassRefPtr<OpaqueJSWeakObjectMap> create(void* data, JSWeakMapDestroyedCallback callback)
     45     {
     46         return adoptRef(new OpaqueJSWeakObjectMap(data, callback));
     47     }
     48 
     49     WeakMapType& map() { return m_map; }
     50 
     51     ~OpaqueJSWeakObjectMap()
     52     {
     53         m_callback(this, m_data);
     54     }
     55 
     56 private:
     57     OpaqueJSWeakObjectMap(void* data, JSWeakMapDestroyedCallback callback)
     58         : m_data(data)
     59         , m_callback(callback)
     60     {
     61     }
     62     WeakMapType m_map;
     63     void* m_data;
     64     JSWeakMapDestroyedCallback m_callback;
     65 };
     66 
     67 
     68 #endif // JSWeakObjectMapInternal_h
     69