On Tue, May 11, 2021, at 10:38 AM, Larry Garfield wrote:
> On Sun, Apr 25, 2021, at 2:25 PM, Larry Garfield wrote:
> > Greetings, Internalians!
> >
> > I would like to offer for your consideration another RFC, specifically
> > syntax for partial function application.
> >
> > https://wiki.php.net/rfc/partial_function_application
> >
> > It includes an implementation by Joe Watkins that is already about 95%
> > complete. (There's some edge cases he's still sorting out, but all of
> > the typical cases should work already.) Most of the design work comes
> > from Levi Morrison and Paul Crovella. I helped out with the tests, a
> > few edge bits, and general instigator/nudge. :-)
> >
> > Discuss.
>
> It looks like the conversation has died down, and it's been two weeks,
> so pending any other notable feedback I'll open a vote on this RFC on
> Thursday or Friday.
Naturally there was more conversation. :-) But good conversation, so the RFC has been updated
again. I recommend everyone look it over another time.
Highlights:
* Joe was able to figure out how to fold the extra partial logic into the Closure object. So the
Partial and ReflectionPartial classes are gone; partial application gives you a closure object that
looks like any other, but still manages to optimize away repeated partial application.
* Some descriptions were improved.
* Constructors already worked, with some caveats. Joe managed to remove those caveats, so they now
work as you would expect them to. (See the RFC section for details.)
* I included some references to other languages and how they handle partial application. Short
version: This is the most robust and most fully featured version of any language I could find. Rock
on, PHP! :-)
* Nicolas, I went ahead and made a test for partial-application-DI-autowiring, just to see what it
would look like. It looks like this:
https://github.com/php/php-src/pull/6898/files#diff-218bb085c4cf4a35da35aa2d7a5cabd77f053d6f975340c2ef10de6f30dee503
Whether that's actually useful or not I don't know, but there it is. :-)
Since there were some substantive changes, we're pushing the vote start off until the first
half of next week, Monday/Tuesday timeframe.
Thanks for your feedback, everyone!
--Larry Garfield