How to Create inheritance for enum

Question

I am trying to create an inheritance for below enum

enum BankAuthError: String {
    case authFailed = "AuthFailed"
    case technicalError = "Unavailable"
    case accountLocked = "Locked"
    case unknownError = "UnknownError"
    case userInteractionRequired = "UserInteractionNeeded"
    case realmUserAlreadyConnected = "UserExists"
}

I am able to use this enum as below

let errorCode = BankAuthError(rawValue:errorMessageCodeString)

Now I am trying to create inheritance from above struct as below

//MARK:- Enum to handle all sysnc errors
enum SyncErrorStatus: BankAuthError {
 case usernameOrPasswordMissing = "UsernameOrPasswordMissing"
 case signatureMissing = "SignatureMissing"
 case twoPhaseAuthentication = "TwoPhaseAuth"
}

But if I am doing this, I am getting the compiler error as

'SyncErrorStatus'声明原始类型'BankAuthError'，但不符合RawRepresentable且无法合成一致性

请让我知道我们是否可以从Raw枚举创建继承。

Answer 1

枚举是值类型，因此没有像枚举那样的继承。声明为enumas时enum YourEnum: Type，将声明您的rawValue enum类型Type。但是，Type需要符合RawRepresentable。

您要寻找的是创建一个enum包含另一个枚举的所有情况以及在Swift中当前无法实现的其他情况的。您不能继承枚举的所有情况。