1 /*

     2  * Copyright (C) 2005, 2007 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  *

     8  * 1.  Redistributions of source code must retain the above copyright

     9  *     notice, this list of conditions and the following disclaimer. 

    10  * 2.  Redistributions in binary form must reproduce the above copyright

    11  *     notice, this list of conditions and the following disclaimer in the

    12  *     documentation and/or other materials provided with the distribution. 

    13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

    14  *     its contributors may be used to endorse or promote products derived

    15  *     from this software without specific prior written permission. 

    16  *

    17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

    18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

    20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

    21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

    23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

    24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

    26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    27  */

    28 

    29 #import <Foundation/Foundation.h>

    30 #import <objc/objc-class.h>

    31 #import <objc/objc.h>

    32 

    33 // Use WebCFAutorelease to return an object made by a CoreFoundation

    34 // "create" or "copy" function as an autoreleased and garbage collected

    35 // object. CF objects need to be "made collectable" for autorelease to work

    36 // properly under GC.

    37 static inline id WebCFAutorelease(CFTypeRef obj)

    38 {

    39     if (obj)

    40         CFMakeCollectable(obj);

    41     [(id)obj autorelease];

    42     return (id)obj;

    43 }

    44 

    45 #if !(defined(OBJC_API_VERSION) && OBJC_API_VERSION > 0)

    46 

    47 static inline IMP method_setImplementation(Method m, IMP i)

    48 {

    49     IMP oi = m->method_imp;

    50     m->method_imp = i;

    51     return oi;

    52 }

    53 

    54 #endif