[swift-evolution] Will Swift ever support optional methods without @objc?

[Chris Lattner]

> On Nov 14, 2016, at 3:48 PM, Rick Mann via swift-evolution <swift-evolution at swift.org> wrote:
> 
> Will Swift ever support optional methods without @objc?
> 

We discussed this extensively in the Swift 3 timeframe, and I believe that the consensus was “no”: optional requirements are considered an Objective-C compatibility feature.

I don’t recall all of the discussion, but a major one would have to be that it is highly redundant with other language features we already have, and makes the design space of Swift APIs more complicated.  If Objective-C didn’t already have them, we would never consider adding them to our protocol model.

-Chris