9 use Sub::Name 'subname';
11 our $VERSION = '0.02';
13 use Moose::Meta::Role;
19 # we should never export to main
20 return if $pkg eq 'main';
22 Moose::Util::TypeConstraints->import($pkg);
25 if ($pkg->can('meta')) {
27 (blessed($meta) && $meta->isa('Moose::Meta::Role'))
28 || confess "Whoops, not møøsey enough";
31 $meta = Moose::Meta::Role->new(role_name => $pkg);
32 $meta->_role_meta->add_method('meta' => sub { $meta })
36 # &alias_method will install the method, but it
37 # will not name it with
40 $meta->alias_method('extends' => subname 'Moose::Role::extends' => sub {
41 confess "Moose::Role does not currently support 'extends'"
45 $meta->alias_method('with' => subname 'Moose::with' => sub {
47 Moose::_load_all_classes($role);
48 $role->meta->apply($meta);
52 $meta->alias_method('requires' => subname 'Moose::requires' => sub {
53 $meta->add_required_methods(@_);
57 $meta->alias_method('has' => subname 'Moose::Role::has' => sub {
58 my ($name, %options) = @_;
59 $meta->add_attribute($name, %options)
62 # handle method modifers
63 $meta->alias_method('before' => subname 'Moose::Role::before' => sub {
65 $meta->add_before_method_modifier($_, $code) for @_;
67 $meta->alias_method('after' => subname 'Moose::Role::after' => sub {
69 $meta->add_after_method_modifier($_, $code) for @_;
71 $meta->alias_method('around' => subname 'Moose::Role::around' => sub {
73 $meta->add_around_method_modifier($_, $code) for @_;
76 $meta->alias_method('super' => subname 'Moose::Role::super' => sub {});
77 $meta->alias_method('override' => subname 'Moose::Role::override' => sub {
78 my ($name, $code) = @_;
79 $meta->add_override_method_modifier($name, $code);
82 $meta->alias_method('inner' => subname 'Moose::Role::inner' => sub {
83 confess "Moose::Role does not currently support 'inner'";
85 $meta->alias_method('augment' => subname 'Moose::Role::augment' => sub {
86 confess "Moose::Role does not currently support 'augment'";
89 # we recommend using these things
90 # so export them for them
91 $meta->alias_method('confess' => \&Carp::confess);
92 $meta->alias_method('blessed' => \&Scalar::Util::blessed);
103 Moose::Role - The Moose Role
115 my ($self, $other) = @_;
116 !$self->equal($other);
119 # ... then in your classes
129 my ($self, $other) = @_;
130 $self->as_float == $other->as_float;
135 This is currently a very early release of Perl 6 style Roles for
136 Moose, it should be considered experimental and incomplete.
138 This feature is being actively developed, but $work is currently
139 preventing me from paying as much attention to it as I would like.
140 So I am releasing it in hopes people will help me on this I<hint hint>.
142 If you are interested in helping, please come to #moose on irc.perl.org
147 Currently, the role support has a number of caveats. They are as follows:
153 At this time classes I<can> consume more than one Role, but they are simply
154 applied one after another in the order you ask for them. This is incorrect
155 behavior, the roles should be merged first, and conflicts determined, etc.
156 However, if your roles do not have any conflicts, then things will work just
161 Roles cannot use the C<extends> keyword, it will throw an exception for now.
162 The same is true of the C<augment> and C<inner> keywords (not sure those
163 really make sense for roles). All other Moose keywords will be I<deferred>
164 so that they can be applied to the consuming class.
168 Basically thats all I can think of for now, I am sure there are more though.
172 All complex software has bugs lurking in it, and this module is no
173 exception. If you find a bug please either email me, or add the bug
178 Stevan Little E<lt>stevan@iinteractive.comE<gt>
180 =head1 COPYRIGHT AND LICENSE
182 Copyright 2006 by Infinity Interactive, Inc.
184 L<http://www.iinteractive.com>
186 This library is free software; you can redistribute it and/or modify
187 it under the same terms as Perl itself.