Swapping an enum value in Swift

Question

I'm currently very new to Swift and I was wondering if the following code can be optimized/shortened in any way:

enum CardOrientation {
    case Horizontal, Vertical
}

func toggleCurrentCardOrientation() {
    switch currentCardOrientation {
    case .Horizontal: currentCardOrientation = .Vertical
    case .Vertical: currentCardOrientation = .Horizontal
    }
}

Let's assume that CardOrientation will always just have these two possible values and every call to toggleCurrentCardOrientation should toggle between each of those.

Answer 1

Two possible solutions:

Use a Bool instead (e.g. isCardOrientationHorizontal)

Bools are extremely easy to toggle: isCardOrientationHorizontal.toggle()

Add a toggle method to your enum:

enum CardOrientation {
    case Horizontal, Vertical

    mutating func toggle() {
        switch self {
            case .Horizontal:
                self = .Vertical
            case .Vertical:
                self = .Horizontal
        }
    }
}