[Swift]对自定义对象添加复制功能

使用复制功能

let lisi = DMObject()
lisi.name = "李四"
lisi.age = "20"
lisi.classify = .live
let copyLisi = lisi.copyObject()

让需要实现解归档的类遵循CustomCodable协议

import UIKit

public enum DMClassify: Int, CustomCodable {
    
    case home = 100
    case live = 101
}

class DMObject: NSObject, CustomCodable {
    
    
    var name : String?
    var age : String?
    var classify : DMClassify?
    
}

自定义CustomCodable继承Codable协议（Codable其实就是Decodable和Encodable）

import UIKit

protocol CustomCodable: Codable {
    
    func copyObject() -> Self
}

extension CustomCodable {
    

    func copyObject() -> Self {
    
        let encoder = JSONEncoder()
        guard let data = try? encoder.encode(self) else {
    
            fatalError("encode failed")
        }
        let decoder = JSONDecoder()
        guard let target = try? decoder.decode(Self.self, from: data) else {
    
            fatalError("decode failed")
        }
        return target
    }
    
}