xcode 6 beta 4 - MessageComposeResult is not convertible to OptionalNilComparisonType

Question

I have just upgraded from Xcode 6 Beta 3 to Beta 4. In 3 my app was compiling perfectly however in 4 I have the following error. Can anyone explain and provide a solution please.

func messageComposeViewController(sendMsg: MFMessageComposeViewController, didFinishWithResult result: MessageComposeResult) {

    switch result {

    case MessageComposeResultSent :    //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
        label2.text = "Msg Sent"

    case MessageComposeResultCancelled : //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
        label2.text = "Msg Send Cancelled"

    case MessageComposeResultFailed :   //Error: MessageComposeResult is not convertible to _OptionalNilComparisonType
        label2.text = "Msg Send Failed"

    default:
        label2.text = "Msg Error"

    }

    self.dismissViewControllerAnimated(true, completion: nil)
    self.reloadInputViews()

}

Answer 1

func messageComposeViewController(controller: MFMessageComposeViewController!, didFinishWithResult result: MessageComposeResult) {

    switch result.value {

    case MessageComposeResultSent.value :
        println("enviado")

    case MessageComposeResultCancelled.value :
        println("cancelado")

    case MessageComposeResultFailed.value :
        println("fallo")

    default:
        println("")

    }

}

Answer 2

It's a bug in the way this module is bridged to Swift. Report it. To use the module, stay in Objective-C until the Swift bridging bug is fixed.

The main part of the bug as it stands seems to me to be:

• This should be an enum, and it isn't; it's a struct

• The struct has a value, which ought to be capable of comparison, but it has no getter (you can set it on initialization but you can't get it later)