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>::info) || obj->inherits(&JSCallbackObject<JSObjectWithGlobalObject>::info));

    61     map->map().set(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 bool JSWeakObjectMapClear(JSContextRef ctx, JSWeakObjectMapRef map, void* key, JSObjectRef object)

    72 {

    73     ExecState* exec = toJS(ctx);

    74     APIEntryShim entryShim(exec);

    75     JSObject* obj = toJS(object);

    76     if (map->map().uncheckedRemove(key, obj))

    77         return true;

    78     return false;

    79 }

    80 

    81 #ifdef __cplusplus

    82 }

    83 #endif