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/*
* MethodSwizzle.h
*
* Copyright (c) 2007-2011 Kent Sutherland
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#import <Cocoa/Cocoa.h>
void MethodSwizzle(Class aClass, SEL orig_sel, SEL alt_sel);
void MethodSwizzleClass(Class aClass, SEL orig_sel, SEL alt_sel);
/*
* MethodSwizzle.m
*
* Copyright (c) 2007-2011 Kent Sutherland
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the
* Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#import "MethodSwizzle.h"
#import <objc/objc-class.h>
void MethodSwizzle(Class aClass, SEL orig_sel, SEL alt_sel)
{
Method orig_method = nil, alt_method = nil;
// First, look for the methods
orig_method = class_getInstanceMethod(aClass, orig_sel);
alt_method = class_getInstanceMethod(aClass, alt_sel);
// If both are found, swizzle them
if ((orig_method != nil) && (alt_method != nil)) {
method_exchangeImplementations(orig_method, alt_method);
}
}
void MethodSwizzleClass(Class aClass, SEL orig_sel, SEL alt_sel)
{
Method orig_method = nil, alt_method = nil;
// First, look for the methods
orig_method = class_getClassMethod(aClass, orig_sel);
alt_method = class_getClassMethod(aClass, alt_sel);
// If both are found, swizzle them
if ((orig_method != nil) && (alt_method != nil)) {
method_exchangeImplementations(orig_method, alt_method);
}
}
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