> On 21 Oct 2017, at 17:06, Chris Lattner <clatt...@nondot.org> wrote:
> 
> FWIW, I’d be pretty opposed to making Void? implicitly discardable.  In the 
> case of a generic function that returns T? where T can sometimes be void, the 
> optional still carries information: perhaps about failure of the operation or 
> something else.  The reason that void and Never default to being ignored is 
> that they are carry no information.   Void? carries one important bit.

Very well said.

For that same reason “return void-expression” shall not be allowed (and not 
parsed as such in a multiline statement)?

override func viewDidLoad() {
    super.viewDidLoad()
    return

    someView = SomeView(frame: view.bounds)
    ....
}

Although it doesn’t fully solve the problem, as the two types may well be 
something other than void.

Mike

_______________________________________________
swift-evolution mailing list
swift-evolution@swift.org
https://lists.swift.org/mailman/listinfo/swift-evolution

Reply via email to