Front page | perl.perl5.porters |
Postings from September 2015
On Thu, Sep 10, 2015 at 11:42 AM, H.Merijn Brand <h.m.brand@xs4all.nl>
wrote:
> On Thu, 10 Sep 2015 11:26:08 -0400, Ricardo Signes
> <perl.p5p@rjbs.manxome.org> wrote:
>
> > As a reminder, and adding one small change, the new behavior is:
> >
> > # STEP ONE
> $x ~~ 42 --> $x == 42 ???
> $x ~~ "foo" --> $x eq "foo" ???
> > $x ~~ $qr --> $x =~ $qr
> > $x ~~ /.../ --> $x =~ /.../
> > $x ~~ sub{...} --> $sub->($x)
> > $x ~~ undef --> ! defined $x
> > $x ~~ obj --> uses ~~ overloading if present, otherwise pass
> >
> > # STEP TWO
> > $obj ~~ $x --> uses ~~ overloading if present, otherwise pass
> >
> > # STEP THREE
> > $x ~~ $y --> fatal
>
Does 42 specifically refer to a numeric literal, or any scalar that's a
number? There is no practical way of determining if a scalar is a number
(as opposed to a string), so the latter isn't possible, which will make
allowing the former a support nightmare.
Thread Previous
|
Thread Next