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 "JSWrapper.h"

    27 

    28 #include <JavaScriptCore/JSContextRefPrivate.h>

    29 

    30 namespace WTR {

    31 

    32 JSValueRef JSWrapper::wrap(JSContextRef context, JSWrappable* object)

    33 {

    34     ASSERT_ARG(context, context);

    35 

    36     if (!object)

    37         return JSValueMakeNull(context);

    38 

    39     JSClassRef objectClass = object->wrapperClass();

    40     ASSERT(objectClass);

    41     JSObjectRef wrapperObject = JSObjectMake(context, objectClass, object);

    42     ASSERT(wrapperObject);

    43 

    44     return wrapperObject;

    45 }

    46 

    47 JSWrappable* JSWrapper::unwrap(JSContextRef context, JSValueRef value)

    48 {

    49     ASSERT_ARG(context, context);

    50     ASSERT_ARG(value, value);

    51     if (!context || !value)

    52         return 0;

    53     return static_cast<JSWrappable*>(JSObjectGetPrivate(JSValueToObject(context, value, 0)));

    54 }

    55 

    56 static JSWrappable* unwrapObject(JSObjectRef object)

    57 {

    58     JSWrappable* wrappable = static_cast<JSWrappable*>(JSObjectGetPrivate(object));

    59     ASSERT(wrappable);

    60     return wrappable;

    61 }

    62 

    63 void JSWrapper::initialize(JSContextRef ctx, JSObjectRef object)

    64 {

    65     JSWrappable* wrappable = unwrapObject(object);

    66     if (!wrappable)

    67         return;

    68     wrappable->ref();

    69 }

    70 

    71 void JSWrapper::finalize(JSObjectRef object)

    72 {

    73     JSWrappable* wrappable = unwrapObject(object);

    74     if (!wrappable)

    75         return;

    76     wrappable->deref();

    77 }

    78 

    79 } // namespace WTR