API/JSWeakObjectMapRefPrivate.cpp

   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<JSNonFinalObject>::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(jsCast<JSObject*>(map->map().get(key)));
  69 }
  70
  71 void JSWeakObjectMapRemove(JSContextRef ctx, JSWeakObjectMapRef map, void* key)
  72 {
  73     ExecState* exec = toJS(ctx);
  74     APIEntryShim entryShim(exec);
  75     map->map().take(key);
  76 }
  77
  78 // We need to keep this function in the build to keep the nightlies running.
  79 JS_EXPORT bool JSWeakObjectMapClear(JSContextRef, JSWeakObjectMapRef, void*, JSObjectRef);
  80 bool JSWeakObjectMapClear(JSContextRef, JSWeakObjectMapRef, void*, JSObjectRef)
  81 {
  82     return true;
  83 }
  84
  85 #ifdef __cplusplus
  86 }
  87 #endif