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Postings from June 2022
On Fri, 24 Jun 2022 10:07:25 -0400 "Ricardo Signes" <perl.p5p@rjbs.manxome.org> wrote: > On Tue, Jun 21, 2022, at 04:45, Paul "LeoNerd" Evans wrote: > > I think there's two things we need to do: > > > > 1) Make ~~ and given/when much louder about their "you shouldn't use > > this for new code" status; > > Agreed. Let's do that immediately? Righty. I'll see what I can hack up. > > 2) Create a better replacement > > I'm all for having a better replacement, but I continue to strongly > oppose the idea that we *need* one to remove the old thing. ... > A replacement would be nice, if it's good, but it doesn't need to > exist before we take the old thing out. Agree - these are two separate things. We can do them independently. > I write a lot of Perl, and have since before smartmatch was > introduced. I never used smartmatch for much. I have banned it from > my projects. I have seen it largely unused. Nothing it does can't > be done some other way already, although sometime more verbosely. We > don't need a replacement, because *we have gotten along fine without > using it for 20 years.* Yah I'm inclined to agree. But also we're honestly most of the way there in terms of designing nicer replacements. Most of the weird funky cases of the ~~ operator (e.g. the array distributative nature of $str ~~ @arr) can be handled with things like List::Util::all - of which I hope to have a nicer core syntax soon. Plus once I finish working out how to do parametric syntax using XS::Parse::Infix, I'll have the `in<eq>` and `in<==>` operators. For now there's `$str elem @arr_of_strings` and `$num ∈ @arr_of_nums` operators (yes the latter requires UTF-8, because I couldn't find a free sequence of ASCII symbols that makes sense) provided by Syntax::Operator::Elem (which I really should get onto CPAN soon). Most of the simpler uses of given/when are just as tidy with my match/case syntax, provided by Syntax::Keyword::Match. It's an evolving design that I hope to drag into core sometime, much like the design process that lead to try/catch in core. -- Paul "LeoNerd" Evans leonerd@leonerd.org.uk | https://metacpan.org/author/PEVANS http://www.leonerd.org.uk/ | https://www.tindie.com/stores/leonerd/Thread Previous | Thread Next