Source/WebKit/mac/Misc/WebNSObjectExtras.h

/*
 * Copyright (C) 2005, 2007 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer. 
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution. 
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

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

// Use WebCFAutorelease to return an object made by a CoreFoundation
// "create" or "copy" function as an autoreleased and garbage collected
// object. CF objects need to be "made collectable" for autorelease to work
// properly under GC.
static inline id WebCFAutorelease(CFTypeRef obj)
{
    if (obj)
        CFMakeCollectable(obj);
    [(id)obj autorelease];
    return (id)obj;
}

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

static inline IMP method_setImplementation(Method m, IMP i)
{
    IMP oi = m->method_imp;
    m->method_imp = i;
    return oi;
}

#endif

@interface NSObject (WebNSObjectExtras)
+ (id)_webkit_invokeOnMainThread;
- (id)_webkit_invokeOnMainThread;
@end