#!/usr/bin/perl -- use strict; use warnings; Main( @ARGV ); exit( 0 ); { package Point; use Moose; has 'x' => (isa => 'Int', is => 'rw', required => 1); has 'y' => (isa => 'Int', is => 'rw', required => 1); sub clear { my $self = shift; $self->x(0); $self->y(0); } } sub Main { print Point->new->dump; print Point->new({})->dump; print Point->new({})->x; } __END__ $VAR1 = bless( {}, 'Point' ); $VAR1 = bless( {}, 'Point' ); Can't locate object method "x" via package "Point" at - line 20.