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Re: Perl6: S2 identifier and $ special var questions

by PrakashK (Pilgrim)
on Sep 14, 2011 at 15:56 UTC ( #925940=note: print w/ replies, xml ) Need Help??


in reply to Perl6: S2 identifier and $ special var questions

In S02 synopsis, section "Names and Variables", I see:

$<foo> match variable, short for $/{'foo'}

So, when you say my $<-var>;, you are actually initializing the key -var of the hash $/.

Here's what I see in recent rakudo:

>> perl6 -v This is Rakudo Perl 6, version 2011.07-2-g1b7dd12 built on parrot 3.6. +0 RELEASE_3_6_0 >> perl6 > my $<-var> = 42 42 > $/ -var 42 > $/.WHAT Hash()


Comment on Re: Perl6: S2 identifier and $ special var questions
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Re^2: Perl6: S2 identifier and $ special var questions
by rir (Vicar) on Sep 14, 2011 at 17:26 UTC
    Thanks, the code is explained.

    How would I declare and use $MyClass::-O'malley's as indicated by the quoted spec?

    Be well,
    rir

      You may not start an identifier with - like that; hyphens and apostrophes are only allowed internally.

      In theory one can declare or use any name you like using Perl 6's explicit symbolic ref notation:

      my $::("-O'Malley's") = 42; say $::("-O'Malley's");
      However, neither implementation does constant folding well enough yet to recognize these as a static variable names.

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