Swift支持反思吗？ [英] Does Swift support reflection?

问题描述

Swift支持反思吗？例如对于Swift对象，是否有 valueForKeyPath：和 setValue：forKeyPath：？

Does Swift support reflection? e.g. is there something like valueForKeyPath: and setValue:forKeyPath: for Swift objects?

实际上它甚至有一个动态类型系统，比如Objective-C中的 obj.class ？

Actually does it even have a dynamic type system, something like obj.class in Objective-C?

推荐答案

看起来有一些反思支持的开始：

Looks like there's the start of some reflection support:

class Fruit {
    var name="Apple"
}

reflect(Fruit()).count         // 1
reflect(Fruit())[0].0          // "name"
reflect(Fruit())[0].1.summary  // "Apple"

来自mchambers gist，这里：
https：// gist .github.com / mchambers / fb9da554898dae3e54f2

From mchambers gist, here: https://gist.github.com/mchambers/fb9da554898dae3e54f2

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