/ 
Moose-0.03_02
River stage four • 2960 direct dependents • 3982 total dependents
/ Moose::Role

NAME

Moose::Role - The Moose Role

SYNOPSIS

package Eq;
use strict;
use warnings;
use Moose::Role;

sub equal { confess "equal must be implemented" }

sub no_equal { 
    my ($self, $other) = @_;
    !$self->equal($other);
}

# ... then in your classes

package Currency;
use strict;
use warnings;
use Moose;

with 'Eq';

sub equal {
    my ($self, $other) = @_;
    $other->as_float == $other->as_float;
}

DESCRIPTION

This is currently a very early release of Perl 6 style Roles for Moose, it should be considered experimental and incomplete.

This feature is being actively developed, but $work is currently preventing me from paying as much attention to it as I would like. So I am releasing it in hopes people will help me on this hint hint.

If you are interested in helping, please come to #moose on irc.perl.org and we can talk.

CAVEATS

Currently, the role support has a number of caveats. They are as follows:

  • There is no support for Roles consuming other Roles. The details of this are not totally worked out yet, but it will mostly follow what is set out in the Perl 6 Synopsis 12.

  • At this time classes can consume more than one Role, but they are simply applied one after another in the order you ask for them. This is incorrect behavior, the roles should be merged first, and conflicts determined, etc. However, if your roles do not have any conflicts, then things will work just fine.

  • I want to have required methods, which is unlike Perl 6 roles, and more like the original Traits on which roles are based. This would be similar in behavior to Class::Trait. These are not yet implemented or course.

  • Roles cannot use the extends keyword, it will throw an exception for now. The same is true of the augment and inner keywords (not sure those really make sense for roles). All other Moose keywords will be deferred so that they can be applied to the consuming class.

Basically thats all I can think of for now, I am sure there are more though.

BUGS

All complex software has bugs lurking in it, and this module is no exception. If you find a bug please either email me, or add the bug to cpan-RT.

AUTHOR

Stevan Little <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

Copyright 2006 by Infinity Interactive, Inc.

http://www.iinteractive.com

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.