swift Equatable 的缺省实现

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swift Equatable 的缺省实现

Starting from Swift 4.1, all you have to is to conform to the Equatable protocol without the need of implementing the == method. See: SE-0185 - Synthesizing Equatable and Hashable conformance. Example: Keep in mind that the default behavior for the =…

swift Equatable 函数签名的测试

struct Degoo:Equatable { var lex:String var pex:String static func == (left:Degoo, right:Degoo) ->Bool{ return true } } func == (left:Degoo, right:Degoo) ->Bool{ return false } let s1 = Degoo.init(lex: "aaa", pex: "bbbb") let s2…

swift class的缺省基类（SwiftObject）与内存模型

Hard Constraints on Resilience The root of a class hierarchy must remain stable, at pain of invalidating the metaclass hierarchy. Note that a Swift class without an explicit base class is implicitly rooted in the SwiftObject Objective-C class. https:…

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使用Swift开发SDK的优点是,生成的SDK对于Obj-C或是Swift调用都不需要自己去建桥接文件,因为Swift的SDK打包时默认已经自动生成供OC调用的.h文件.OC调用时直接import,sdk中的.h文件即可.而Swift调用时,import该SDK名即可. 制作SDK的整个过程也十分简单,网上的博客多的不能再多(大多基于OC). 使用Swift开发,里面会遇到千奇百怪的坑!所以写这篇博客的目的分享下这些坑的解决经验. 1.工程组合的方式: 开发SDK,不建议直接把SDK当APP开发…

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swift Hashable Equatable

/// You can use any type that conforms to the `Hashable` protocol in a set or /// as a dictionary key. Many types in the standard library conform to /// `Hashable`: Strings, integers, floating-point and Boolean values, and even /// sets provide a has…