基于 flex/yacc 的 iOS 热更新框架

English README

• DynamicOC 是一个功能上与JSPath类似，但是仅需要编写原生 OC 语法就能实现热更新(hotfix)的功能。

功能特点

• 动态执行 OC 代码
• 动态执行 C 函数和 block 异步调用
• 动态添加属性
• 动态替换方法
• 动态添加方法
• 有完善的单元测试
• flex/yacc 实现强大的 OC 语法解析器
• 支持 CGRect/CGSize/CGPoint/NSRange/UIEdgeInsets/CGAffineTransform 常用结构体 ...

基本用法

动态执行 block

NSString* text = @" \
	__block int result = 0;\
	UIView* view = [[UIView alloc]init];\
	void(^blk)(int value) = ^(int value){\
		view.tag = value;\
	};\
blk(1024);\
return view.tag;";

ASTNode* root = [ASTUtil parseString:text];
[ASTUtil linkContextToRoot:root];
ASTVariable* result = [root execute];
NSAssert([result.value doubleValue] == 1024, nil);

动态执行 C 函数

int echo(int value) {
	return value;
}

NSString* text = @" \
[OCCfuntionHelper defineCFunction:@\"echo\" types:@\"int, int\"]; \
return echo(1024);";

ASTNode* root = [ASTUtil parseString:text];
[ASTUtil linkContextToRoot:root];
ASTVariable* result = [root execute];
NSAssert([result.value doubleValue] == 1024, nil);

动态添加 Property

NSString* text = @" \
[OCCfuntionHelper defineCFunction:@\"objc_setAssociatedObject\" types:@\"void,id,void *,id,unsigned int\"];\
[OCCfuntionHelper defineCFunction:@\"objc_getAssociatedObject\" types:@\"id,id,void *\"];\
NSString* key = @\"key\"; \
objc_setAssociatedObject(self, key, @(1024), 1);\
return objc_getAssociatedObject(self, key);";

ASTNode* root = [ASTUtil parseString:text];
[ASTUtil linkContextToRoot:root];
ASTVariable* result = [root execute];
NSAssert([result.value doubleValue] == 1024, nil);

已支持语法

• [x] if/else while do/while for
• [x] return break continue
• [x] i++ i-- ++i --i
• [x] +i -i !i
• [x] + - * / %等四则运算
• [x] >> << & | ^ 等位运算
• [x] && || >= <= != > < 等比较运算
• [x] ?:
• [x] __block
• [x] array[i] dict[@""]
• [x] @666 @() @[] @{}
• [x] self super
• [x] self.property
• [x] self->_property
• [x] most of objective-c keyword

TODO

• [ ] @avaiable()
• [ ] [NSString stringWithFormat:"%d",value] : use [NSString stringWithFormat:"%@",@(value)] instead。
• [ ] dispatch_async / dispatch_after ...
• [ ] *stop =YES, in block
• [ ] fix bugs

联系方式

• GitHub : dKingbin
• Email : [email protected]

License

Copyright (c) 2019 dKingbin
Licensed under MIT or later

DynamicOC required features are based on or derives from projects below:

• MIT
  • JSPatch
  • Aspects
  • OCEval