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//
// Based on gist by Eric Allam
// https://gist.github.com/ericallam/5689235
//
#import "CSSwizzler.h"
#import <objc/message.h>
#import <objc/runtime.h>
@implementation CSSwizzler
+ (void)swizzleClass:(id)cls
replaceClassMethod:(SEL)origMethodSelector
withMethod:(SEL)replacementMethodSelector;
{
Method origMethod = nil, altMethod = nil;
origMethod = class_getClassMethod(cls, origMethodSelector);
altMethod = class_getClassMethod(cls, replacementMethodSelector);
method_exchangeImplementations(origMethod, altMethod);
}
+ (void)swizzleClass:(id)cls
replaceMethod:(SEL)origMethodSelector
withMethod:(SEL)replacementMethodSelector;
{
Method origMethod = nil, altMethod = nil;
origMethod = class_getInstanceMethod(cls, origMethodSelector);
altMethod = class_getInstanceMethod(cls, replacementMethodSelector);
method_exchangeImplementations(origMethod, altMethod);
}
+ (void)swizzleClassOfInstance:(id)inst
replaceMethod:(SEL)origMethodSelector
withMethod:(SEL)replacementMethodSelector;
{
const char *str = [[[inst class] description] UTF8String];
Class cls = objc_getClass(str);
Method origMethod = nil, altMethod = nil;
origMethod = class_getInstanceMethod(cls, origMethodSelector);
altMethod = class_getInstanceMethod(cls, replacementMethodSelector);
method_exchangeImplementations(origMethod, altMethod);
}
@end
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