Presently, you can mark enum cases as @available but it has no impact. Take the following example:
enum Things:String {
@available (iOS 9.3, *) case MobileThing = "com.example.mobilething"
@available (OSX 10.11, *) case DesktopThing = "com.example.desktopthing"
}
Despite the above compiling, the following code will run iOS with no warnings:
func takesA(thing:Things) {
print(thing)
}
takesA(.DesktopThing)
Are there enough compelling use-cases for @available on enum cases to be
considered? At the very least, if @available doesn't do anything on cases, it
shouldn't be permitted.
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