Swift 泛型的入参没有显式用到..有种很难受的感觉.. - V2EX
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func mapModel<T: HandyJSON>(_ type: T.Type) throws -> T {
let jsOnString= String(data: data, encoding: .utf8)
guard let model = JSONDeserializer<T>.deserializeFrom(json: jsonString) else {
throw MoyaError.jsonMapping(self)
}
return model
}

这里的 type 作为入参.却只隐式定义了 T 的类型...

问问大佬们
现在有新的写法吗?
还是要这么玩就必须得这么写?
3 条回复    2022-09-01 11:59:54 +08:00
ravenZ
    1
ravenZ  
OP
   2022-09-01 11:02:52 +08:00
....我自己想了一下..
直接这么写就好了... 优雅了.歧义没了..作用也达到了...

func mapModel<T: HandyJSON>(_: T.Type) throws -> T {
...
}
s524256521
    2
s524256521  
   2022-09-01 11:45:51 +08:00 via Android
extension HandyJson
kera0a
    3
kera0a  
   2022-09-01 11:59:54 +08:00
直接不要这个参数也行吧,调用方式则为
let model:XX = data.mapModel()
let model = data.mapModel<XX>()

和现在的调用方式差不多
let mod = data.mapModel(XX.self)
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