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      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 #include "config.h"
     27 #include "JSWeakObjectMapRefPrivate.h"
     28 
     29 #include "APICast.h"
     30 #include "APIShims.h"
     31 #include "JSCallbackObject.h"
     32 #include "JSValue.h"
     33 #include "JSWeakObjectMapRefInternal.h"
     34 #include <wtf/HashMap.h>
     35 #include <wtf/text/StringHash.h>
     36 
     37 using namespace WTF;
     38 using namespace JSC;
     39 
     40 #ifdef __cplusplus
     41 extern "C" {
     42 #endif
     43 
     44 JSWeakObjectMapRef JSWeakObjectMapCreate(JSContextRef context, void* privateData, JSWeakMapDestroyedCallback callback)
     45 {
     46     ExecState* exec = toJS(context);
     47     APIEntryShim entryShim(exec);
     48     RefPtr<OpaqueJSWeakObjectMap> map = OpaqueJSWeakObjectMap::create(privateData, callback);
     49     exec->lexicalGlobalObject()->registerWeakMap(map.get());
     50     return map.get();
     51 }
     52 
     53 void JSWeakObjectMapSet(JSContextRef ctx, JSWeakObjectMapRef map, void* key, JSObjectRef object)
     54 {
     55     ExecState* exec = toJS(ctx);
     56     APIEntryShim entryShim(exec);
     57     JSObject* obj = toJS(object);
     58     if (!obj)
     59         return;
     60     ASSERT(obj->inherits(&JSCallbackObject<JSGlobalObject>::s_info) || obj->inherits(&JSCallbackObject<JSObjectWithGlobalObject>::s_info));
     61     map->map().set(exec->globalData(), key, obj);
     62 }
     63 
     64 JSObjectRef JSWeakObjectMapGet(JSContextRef ctx, JSWeakObjectMapRef map, void* key)
     65 {
     66     ExecState* exec = toJS(ctx);
     67     APIEntryShim entryShim(exec);
     68     return toRef(static_cast<JSObject*>(map->map().get(key)));
     69 }
     70 
     71 // We need to keep this function in the build to keep the nightlies running.
     72 JS_EXPORT bool JSWeakObjectMapClear(JSContextRef, JSWeakObjectMapRef, void*, JSObjectRef);
     73 bool JSWeakObjectMapClear(JSContextRef, JSWeakObjectMapRef, void*, JSObjectRef)
     74 {
     75     return true;
     76 }
     77 
     78 #ifdef __cplusplus
     79 }
     80 #endif
     81