[swift-evolution] [Review] SE-0022: Referencing the Objective-C selector of a method

Douglas Gregor dgregor at apple.com
Thu Jan 21 18:55:45 CST 2016


> On Jan 21, 2016, at 4:14 PM, Joe Groff <jgroff at apple.com> wrote:
> 
> 
>> On Jan 21, 2016, at 11:08 AM, Douglas Gregor via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> 
>> 
>>> On Jan 20, 2016, at 8:41 PM, Rob Mayoff via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>> 
>>> On Wed, Jan 20, 2016 at 9:39 PM, Chris Lattner via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>>> That said, I’m in favor of x.selector, or #selector(x).  The former seems more syntactically elegant if it is practical.
>>> 
>>> It seems like #selector(x) would make it easier to get good autocompletion (like Xcode's autocompletion of @selector(x) in ObjC doesn't insert argument placeholders).
>> 
>> I guess we could give more targeted code completions inside #selector(<code complete here>, only providing name completions for @objc entities.
> 
> We don't necessarily need to limit it to @objc entities; we can theoretically instantiate an ObjC method and selector for any method (or context-free closure, even) with an ObjC-compatible signature on demand.

Yes, we certainly could.

	- Doug


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