> On Aug 5, 2015, at 7:00 PM, Rick Mann <[email protected]> wrote:
>
>>
>> On Aug 5, 2015, at 16:57 , Charles Srstka <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> I get that error any time I try to subclass *any* enum. I don’t think enums
>> are supposed to be subclassable.
>
> Guess I'll submit a bug. Seems perfectly reasonable to do.
Sorry for the delay; it took me a while to figure out why the line of code with
addObserverForName was giving wonderfully helpful errors like “‘String’ is not
convertible to ‘StringLiteralConvertible’” (grumble grumble).
Anyway, what you want may be possible via a protocol extension:
import Foundation
protocol PostableEnum {
func post()
var rawValue: String { get }
}
extension PostableEnum {
func post() {
NSNotificationCenter.defaultCenter().postNotificationName(self.rawValue,
object: nil)
}
}
enum SomeEnum : String, PostableEnum {
case Foo = "Foo"
}
let someEnum = SomeEnum.Foo
let foo = NSObject()
let observer = NSNotificationCenter.defaultCenter().addObserverForName("Foo",
object: nil, queue: nil) { _ in
print("notification received")
}
someEnum.post()
CFRunLoopRun()
Charles
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