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: createOpaqueJSWeakObjectMap44 static PassRefPtr<OpaqueJSWeakObjectMap> create(void* data, JSWeakMapDestroyedCallback callback) 45 { 46 return adoptRef(new OpaqueJSWeakObjectMap(data, callback)); 47 } 48 mapOpaqueJSWeakObjectMap49 WeakMapType& map() { return m_map; } 50 ~OpaqueJSWeakObjectMapOpaqueJSWeakObjectMap51 ~OpaqueJSWeakObjectMap() 52 { 53 m_callback(this, m_data); 54 } 55 56 private: OpaqueJSWeakObjectMapOpaqueJSWeakObjectMap57 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