#!/usr/bin/perl -I../lib package My::IO; use Moose; extends 'MooseX::GlobRef::Object'; has 'filename' => ( is => 'ro', isa => 'Str', required => 1 ); sub open { my $fh = shift; my $hashref = ${*$fh}; open $fh, $hashref->{filename} or confess "cannot open"; return $fh; } sub getlines { my $fh = shift; return readline $fh; } my $io = new My::IO filename=>'/etc/passwd'; print "::::::::::::::\n"; print $io->filename, "\n"; print "::::::::::::::\n"; $io->open; print $io->getlines;