[swift-evolution] [Proposal] Make optional protocol methods first class citizens

[Yuval Tal]

For readability and specifically in this case, I think it does make sense
IMHO.

On Sunday, April 3, 2016, Chris Lattner <clattner at apple.com> wrote:

>
> On Apr 3, 2016, at 10:40 AM, Andrey Tarantsov <andrey at tarantsov.com
> <javascript:_e(%7B%7D,'cvml','andrey at tarantsov.com');>> wrote:
>
> Protocol requirements with default (no-op) implementations already satisfy
> that design goal, no?
>
>
> Chris, as we've discussed in a thread that I think got forked from this
> one:
>
> Yes, they do technically, but it would be nice to both:
>
> 1) make it an obvious documented part of the signature, possibly including
> the default return value
>
> 2) possibly make it less verbose by getting rid of the explicitly spelled
> out protocol extension
>
>
> Right, but “more is worse” when it comes to language design.  Having a
> "more general" facility that greatly overlaps with a “more narrow” facility
> always makes us question whether it is worth the complexity to have both.
>
> -Chris
>
>
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