Re^2: using eval or equivalent to automatically generate my statements


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Re^2: using eval or equivalent to automatically generate my statements

by ISAI student (Scribe)

on Dec 14, 2012 at 07:13 UTC ( [id://1008785]=note: print w/replies, xml )

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in reply to Re: using eval or equivalent to automatically generate my statements
in thread using eval or equivalent to automatically generate my statements

Thank you for all yor help. Unofortunaely, I was granted very short time to do a rather thankless task. Theoretically, scratching it and start anew is the way to go. I have no management green light to do so, and the decision is not without reason. It took > 5 years of on-going user feedback to get where we wanted.

I was hoping to see some really cool PERL magic, it may be for the best, but it would have been one cool metaprogramming feat...

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Re^3: using eval or equivalent to automatically generate my statements
by tobyink (Canon) on Dec 14, 2012 at 10:22 UTC

OK, so as not to disappoint...

Introducing Acme::Asplode: it lets you drag your caller's lexical variables kicking and screaming into your sub. Ought to work in Perl 5.12+.

Read more... (2 kB)

Example usage...

use 5.012;
use strict;
use warnings;

use Acme::Asplode;

sub bar
{
    asplode($x, $y);  # steal lexical variables from our caller!
    say $x;
    say $y;
    asplode @A, $z;  # steal moar lexicals!!!
    say $z;
    $z++; # alter our caller's lexical variable!!
    say for @A;
};

sub foo
{
    my $x = 1;
    my $y = 2;
    my $z = 3;
    my @A = qw(a b c);
    bar();
    say "Z is changed: $z";
}

foo();
[download]

Update: Acme::Asplode, renamed Acme::Lexical::Thief is now on CPAN.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

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