快速打印结构名称 [英] Print Struct name in swift

问题描述

可以在 swift 中知道结构的名称吗?我知道这对于 class 是可能的:

It is possible to know the name of a struct in swift ? I know this is possible for class:

示例

class Example {
   var variable1 = "one"
   var variable2 = "2"
}

打印这个类名，我会这样做:

printing this class name, I would simply do:

NSStringFromClass(Example).componentsSeparatedByString(".").last!

但是我可以为 struct 做类似的事情吗?

but can I do something similar for struct ?

示例

如果我有一个 struct :

struct structExample {
   var variable1 = "one"
   var variable2 = "2"
}

我怎样才能获得这个struct的名称​​"structExample"?

how can I get the name "structExample" of this struct?

谢谢.

推荐答案

如果你需要非实例化结构的名称，你可以询问它的self:

If you need the name of the non instanciated struct you can ask for its self:

struct StructExample {
    var variable1 = "one"
    var variable2 = "2"
}

print(StructExample.self) // prints "StructExample"

例如，我将使用 CustomStringConvertible 和 dynamicType:

For an instance I would use CustomStringConvertible and dynamicType:

struct StructExample: CustomStringConvertible {
    var variable1 = "one"
    var variable2 = "2"
    var description: String {
        return "\(self.dynamicType)"
    }
}

print(StructExample()) // prints "StructExample"

关于 Swift 3，self.dynamicType 已重命名为 type(of: self) 以作为示例.

Regarding Swift 3, self.dynamicType has been renamed to type(of: self) for the example here.

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