swift - 我正在尝试创建一个 hasable 结构。但每次都得到 "MyNewHasableStruct does not conform to protocol Hashable "

Question

以下是我遇到问题的代码片段。我对 Hasbale 的理解是，它应该安慰“==”和“hashValue”，但由于错误，我也覆盖了“<”，但仍然面临同样的问题。

struct MyNewHasableStruct {
    let oneString: String
    let oneInt: Int
}

extension MyNewHasableStruct : Hashable {
    var hasValue : Int {
        return oneString.hashValue ^ oneInt.hashValue
    }

    static func == (lhs: MyNewHasableStruct, rhs: MyNewHasableStruct) -> Bool {
        return lhs.oneInt == rhs.oneInt && lhs.oneString == rhs.oneString
    }


   static func < (lhs: MyNewHasableStruct, rhs: MyNewHasableStruct) -> Bool {
       return lhs.oneInt < rhs.oneInt && lhs.oneString < rhs.oneString
   }

}

Answer 1

var hasValue : Int 应该是 var hashValue : Int

struct MyNewHasableStruct {
        let oneString: String
        let oneInt: Int
    }

    extension MyNewHasableStruct : Hashable {
        var hashValue : Int {
            return oneString.hashValue ^ oneInt.hashValue
        }

        static func == (lhs: MyNewHasableStruct, rhs: MyNewHasableStruct) -> Bool {
            return lhs.oneInt == rhs.oneInt && lhs.oneString == rhs.oneString
        }


       static func < (lhs: MyNewHasableStruct, rhs: MyNewHasableStruct) -> Bool {
           return lhs.oneInt < rhs.oneInt && lhs.oneString < rhs.oneString
       }

    }