+1000
I once made a country code enum, and creating that array was simple, but took
forever, and was prone to mistakes.
Thanks,
Jon
> On Sep 8, 2017, at 2:56 AM, Logan Shire via swift-evolution
> <swift-evolution@swift.org> wrote:
>
> Googling ‘swift iterate over enum cases’ yields many results of various
> levels of hackery.
> Obviously it’s trivial to write a computed property that returns an enum’s
> cases as an
> array, but maintaining that is prone to error. If you add another case, you
> need to make sure
> you update the array property. For enums without associated types,
> I propose adding a synthesized static var, ‘cases', to the enum’s type. E.g.
>
> enum Suit: String {
> case spades = "♠"
> case hearts = "♥"
> case diamonds = "♦"
> case clubs = "♣"
> }
>
> let values = (1…13).map { value in
> switch value {
> case 1: return “A”
> case 11: return “J”
> case 12: return “Q”
> case 13: return “K”
> default: return String(value)
> }
> }
>
> let cards = values.flatMap { value in Suit.cases.map { “\($0)\(value)" } }
>
> Yields [“♠A”, “ ♥ A”, …, “♣K”]
> Thoughts?
>
>
> Thanks!
> - Logan Shire
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