| // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_COMMON_MAC_OBJC_METHOD_SWIZZLE_H_ |
| #define CHROME_COMMON_MAC_OBJC_METHOD_SWIZZLE_H_ |
| |
| #import <objc/runtime.h> |
| |
| // You should think twice every single time you use anything from this |
| // namespace. |
| namespace ObjcEvilDoers { |
| |
| // This is similar to class_getInstanceMethod(), except that it |
| // returns NULL if |aClass| does not directly implement |aSelector|. |
| Method GetImplementedInstanceMethod(Class aClass, SEL aSelector); |
| |
| // Exchanges the implementation of |originalSelector| and |
| // |alternateSelector| within |aClass|. Both selectors must be |
| // implemented directly by |aClass|, not inherited. The IMP returned |
| // is for |originalSelector| (for purposes of forwarding). |
| IMP SwizzleImplementedInstanceMethods( |
| Class aClass, const SEL originalSelector, const SEL alternateSelector); |
| |
| } // namespace ObjcEvilDoers |
| |
| #endif // CHROME_COMMON_MAC_OBJC_METHOD_SWIZZLE_H_ |
