[swift-evolution] Pre-proposal: CaseEnumerable protocol (derived collection of enum cases)

[David Waite]

> On Jan 19, 2016, at 6:05 PM, Erica Sadun via swift-evolution <swift-evolution at swift.org> wrote:
> 
>> On Jan 19, 2016, at 1:54 PM, Joe Groff via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> This is just my opinion, but I think declaring a conformance ought to be enough. You could imagine the compiler-synthesized implementation being provided by a protocol extension with sufficiently advanced language features from the future to implement the default behavior.
> 
> Also +1
> 
> :)
> 
> -- E, who believes in the sufficiently advanced language features from the future

As long as they aren’t trying to kill my parents or myself for a bug I wrote in the source code for Skynet, I’m fine.

More seriously, I think of this sort of thing as being a default implementation of a protocol via an extension, just using internal language implementation features.

-DW