Front page | perl.perl5.porters |
Postings from July 2020
On Tue, Jul 21, 2020 at 2:37 AM Eric Brine <ikegami@adaelis.com> wrote: > [I jumbled two thoughts together in my original email. This revises it.] > On Mon, Jul 20, 2020 at 7:29 PM Eric Brine <ikegami@adaelis.com> wrote: > >> >> In reference to https://github.com/Perl/perl5/wiki/SC-Notes-2020-07-14 >> >> 1. We see that refaliasing is going to be on by default in Perl 7. Yet, >> refaliasing is still experimental in Perl 5.32! Are there any known issues >> or concerns with refaliasing? >> >> 2. The example code for what is going to be on by default in Perl 7 >> requires the declared_refs feature. [...] >> > > 2a. Yet, declared_refs feature is slated to be off by default. Some > clarification, please?* > > 2b. Yet, declared_refs is still experimental in Perl 5.32! Are there any > known issues or concerns with declared_refs? > > >> * The document acknowledges there was some confusion among the attendees >> as to the difference between the two features. It's quite simple: >> >> \@a = []; # Requires refaliasing > >> \my @a = []; # Requires refaliasing >> my \@a = []; # Requires refaliasing and declared_refs >> > > Although I read perldelta when a new major version comes out this is the first time I saw this. I had to go back to perl5260delta to find it in https://metacpan.org/pod/distribution/perl/pod/perl5260delta.pod#Declaring-a-reference-to-a-variable . I wonder why the postfix dereferencing syntax isn't used for a new features as that's newer and thus preferred way of dereferencing: my @a->@* = []; Is this even allowed? I guess not. Postfix dereferencing was declared stable in 5.24 so was available when this was introduced in 5.26. Thoughts?Thread Previous | Thread Next