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#!/usr/bin/env perl use Data::Dumper; ... my $self=shift; warn Data::Dumper->Dump([\$self],[qw(*self)]),' '; };
c:\Users\Clueless>perl can.pl $ref = \sub { package Yada; ... warn 'Data::Dumper'->Dump([\$self], ['*self']), ' '; }; at can.pl line 10.