打印导入的枚举大小写会给出枚举名称而不是大小写名称

Question

As per documentation and this thread , among others, for an enum of Ints I can print the case name as a string by simply doing this:

enum TestEnum: Int {
    case one
    case two
    case three
}

let testEnum = TestEnum.two

print(testEnum)

// prints "two"

Which works of course. But if I try to do the same thing with CKAccountStatus , it prints the name of the enum:

import CloudKit

let testStatus = CKAccountStatus.noAccount

print(testStatus)

// prints "CKAccountStatus"

CKAccountStatus is an enum of Ints, just like the test enum above:

public enum CKAccountStatus : Int {


    case couldNotDetermine

    case available

    case restricted

    case noAccount
}

What am I doing wrong and/or why is this happening?

Answer 1

Your TestEnum is a swift enum. CKAccountStatus could be Objective C enum.

You can achieve it by confirming the CustomStringConvertible protocol by adding:

extension CKAccountStatus: CustomStringConvertible {
    public var description: String {
        switch self {
        case .noAccount:
            return "noAccount"
        case .available:
            return "available"
        case .restricted:
            return "restricted"
        case .couldNotDetermine:
            return "couldNotDetermine"
        }
    }
}


let testStatus = CKAccountStatus.available
print(testStatus) // available