Front page | perl.perl5.porters |
Postings from December 2021
On Mon, 6 Dec 2021 17:57:27 +0100 (CET)
Tina Müller <post@tinita.de> wrote:
> On Mon, 29 Nov 2021, Paul "LeoNerd" Evans wrote:
>
> > The final part of the "signatures" feature still to be implemented,
> > is getting rid of the @_ setup as part of OP_ENTERSUB when entering
> > a signature'd sub, for the speed benefit it gives. I've been
> > thinking about how to implement this.
>
> Sorry if this has been discussed before somewhere, but I'm wondering
> how to assign values to @_ when using signatures. Is there a way, or
> will there be?
>
> e.g.
>
> sub inc($x) {
> $_[0]++ # how to do this?
> }
Short answer; "don't do that".
Longer answer: Maybe we'll consider some sort of `:alias` attribute for
permitting that at some future time:
sub inc($x :alias) { $x++ }
--
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