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/* |
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* MethodSwizzle.m |
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* |
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* Copyright (c) 2007-2011 Kent Sutherland |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to use, |
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* copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the |
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* Software, and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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#import "MethodSwizzle.h" |
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#import <objc/objc-class.h> |
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void MethodSwizzle(Class aClass, SEL orig_sel, SEL alt_sel) |
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{ |
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Method orig_method = nil, alt_method = nil; |
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// First, look for the methods |
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orig_method = class_getInstanceMethod(aClass, orig_sel); |
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alt_method = class_getInstanceMethod(aClass, alt_sel); |
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// If both are found, swizzle them |
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if ((orig_method != nil) && (alt_method != nil)) { |
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method_exchangeImplementations(orig_method, alt_method); |
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} |
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} |
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void MethodSwizzleClass(Class aClass, SEL orig_sel, SEL alt_sel) |
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{ |
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Method orig_method = nil, alt_method = nil; |
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// First, look for the methods |
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orig_method = class_getClassMethod(aClass, orig_sel); |
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alt_method = class_getClassMethod(aClass, alt_sel); |
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// If both are found, swizzle them |
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if ((orig_method != nil) && (alt_method != nil)) { |
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method_exchangeImplementations(orig_method, alt_method); |
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} |
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} |
This comment has been minimized.
Sumit1991Saha commentedOct 11, 2017
what is the difference in both the methods???