Swift 支持反射吗? [英] Does Swift support reflection?

问题描述

Swift 支持反射吗?例如Swift 对象是否有类似 valueForKeyPath: 和 setValue:forKeyPath: 的东西?

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 吗?

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

推荐答案

看起来有些反射支持开始了:

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 的要点，这里:https://gist.github.com/mchambers/fb9da554898dae3e54f2

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

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