https://github.com/renjinkui2719/DIS_KVC_KVO

Objective-C KVC, KVO的实现源码，根据 Foundation.framework汇编反写而来,还原iOS对KVO,KVC的真实实现
https://github.com/renjinkui2719/DIS_KVC_KVO

kvc kvo

Last synced: 2 months ago
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Objective-C KVC, KVO的实现源码，根据 Foundation.framework汇编反写而来,还原iOS对KVO,KVC的真实实现

• Host: GitHub
• URL: https://github.com/renjinkui2719/DIS_KVC_KVO
• Owner: renjinkui2719
• Created: 2017-03-01T03:23:24.000Z (almost 8 years ago)
• Default Branch: master
• Last Pushed: 2022-12-12T11:23:01.000Z (about 2 years ago)
• Last Synced: 2024-08-01T19:55:20.934Z (6 months ago)
• Topics: kvc, kvo
• Language: Objective-C
• Homepage:
• Size: 3.21 MB
• Stars: 559
• Watchers: 16
• Forks: 76
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# DIS_KVC_KVO

根据IOS Foundation框架汇编反写的KVC,KVO实现，可以在mac, IOS环境下运行调试, KVC与KVO实现机制密不可分，所以将它们作为一个工程。  

主要用作学习与研究，加深对KVC,KVO机制的理解，理解oc runtime在这些机制实现中的重要作用.  

为了在xcode里正确编译调试,工程代码命名遵循一个规则:  

和系统冲突的地方全部用D或者d_前缀修饰. 比如: 

Category `NSObject+NSKeyValueCoding`, 在工程实现中改名为`NSObject+DSKeyValueCoding`  

同理:  

方法 `- (id)valueForKey:(NSString *)key` ==> `- (id)d_valueForKey:(NSString *)key` 

方法 `- (void)addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options:(NSKeyValueObservingOptions)options context:(void *)context` ==> `- (void)d_addObserver:(NSObject *)observer forKeyPath:(NSString *)keyPath options:(NSKeyValueObservingOptions)options context:(void *)context`

  

...  

类`NSKeyValueObservance` ==> `DSKeyValueObservance`  

类`NSKeyValueChangeDictionary` ==> `DSKeyValueChangeDictionary`  

...