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Re^2: get name of lexical variable

by ysth (Canon)
on Jul 12, 2009 at 18:03 UTC ( #779389=note: print w/ replies, xml ) Need Help??


in reply to Re: get name of lexical variable
in thread get name of lexical variable

PadWalker provides a var_name function that takes the reference and does that for you. It's even more reliable than looping over the lexicals, when the lexical you want is hidden:

#!/usr/bin/perl -l use strict; use warnings; use PadWalker ":all"; sub foo { my $x; for ($x) { my $x; bar(\$_); } } sub bar { print var_name(1, $_[0]); # works my $vars = peek_my(1); print grep $vars->{$_} == $_[0], keys %$vars; # doesn't work unle +ss 2nd my $x is commented out } foo();


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