So, today is day 2 of Swift 2.2 being in the hands of mere mortals. This
evening, I walked into my weekly NSCoder Night meeting and talked to a pretty
experienced developer struggling with this:
class EditEventViewController: UIViewController {
...
@IBAction func cancel(sender: AnyObject?) {
cancel()
}
func cancel() {
// actual canceling logic is here
}
}
class EditEventContainerViewController: UIViewController {
...
func prepareForSegue(_ segue: UIStoryboardSegue, sender sender:
AnyObject?) {
switch segue.identifier {
...
let cancelButton =
UIBarButtonItem(barButtonSystemItem: .Cancel, target: nil, action: nil)
cancelButton.target = vc
cancelButton.action = #selector(vc.cancel)
// This is the problem line
...
}
}
}
`vc.cancel` was, of course, ambiguous, and the SE-0021 `vc.cancel(_:)` syntax
can't select a Void function. I had to explain how to use `as Void -> Void` to
select the right version.
This is merely an anecdote, but I think it may end up being an issue.
--
Brent Royal-Gordon
Architechies
_______________________________________________
swift-evolution mailing list
[email protected]
https://lists.swift.org/mailman/listinfo/swift-evolution
