Thanks for your reply. My use case is that I have classes that are basically lists of other objects. Within a role I have a few methods that can produce new instances of these classes. Something like the code below (the real code is a nightmare, which may be part of the problem...). There is probably a way to do this along the lines that you suggest, but I'm having a hard time figuring out how... 
package Cluster;

use strict;
use warnings;
use Moose::Role;
use namespace::autoclean;
use Group;

sub cluster {
    my($self) = @_;

    # cluster the members of this group, producing several
    # sub groups whose members may be clustered further
    my $sub_group1 = Group->new();
    my $sub_group2 = Group->new();

    return [$sub_group1, $sub_group2];
}

1;

[download]
package Group;

use strict;
use warnings;
use Moose;
use namespace::autoclean;

with 'Cluster';

__PACKAGE__->meta->make_immutable;

1;

[download]

In reply to Re^2: moose role that uses a class that does the role by mjbetts
in thread moose role that uses a class that does the role by mjbetts

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