OC函数转为Cycript函数

原生函数：

//通过View获取当前的ViewController
- (UIViewController *)currentViewControllerForVC:(UIView *)view
{
    Class vcClass = [UIViewController class];
    UIResponder *responder = view;
    while ((responder = [responder nextResponder]))
        if ([responder isKindOfClass:vcClass])
            return (UIViewController *)responder;
    return nil;
}

转换结果：

function currentVCForView(view) {
    var vcClass = UIViewController.class
    var responder = view
    while (responder = responder. nextResponder) {
        var isVCType = objc_msgSend(responder, "isKindOfClass:", vcClass)
        if (isVCType) {
           return responder
        }
    
    }
    return nil
}

最主要的技术点是通过objc_msgSend(receiver, selector, arg1, arg2, …);转换带参数的OC方法。