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Postings from May 2023
On Fri, 5 May 2023 11:58:56 +0100
Dave Mitchell <davem@iabyn.com> wrote:
> Note that in Perl 6 and some CPAN signature modules, the 'method'
> keyword declares an implicit $self parameter, whose name can be
> overridden using a postfix ':':
>
> method foo($x, $y) { $self->{$x} = $y } # implicit $self
> method foo($me: $x, $y) { $me->{$x} = $y } # explicit invocant
>
> I have no plans to introduce such a 'method' keyword, but if we did,
> we might need different syntax for the invocant, as the ':' would be
> interpreted as the start of an attribute unless the toker was clever
> and we are very careful that all signature syntax is capable of being
> disambiguated.
A quick note on that part - the newly-added `method` keyword doesn't
allow you to rename the invocant variable at all. You just get `$self`,
so there's no such syntax ambiguity here to worry about.
--
Paul "LeoNerd" Evans
leonerd@leonerd.org.uk | https://metacpan.org/author/PEVANS
http://www.leonerd.org.uk/ | https://www.tindie.com/stores/leonerd/
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