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1 | package Moose::Meta::Role::Composite; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | use metaclass; |
6 | |
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7 | use Scalar::Util 'blessed'; |
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8 | |
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9 | our $VERSION = '0.68'; |
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10 | $VERSION = eval $VERSION; |
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11 | our $AUTHORITY = 'cpan:STEVAN'; |
12 | |
13 | use base 'Moose::Meta::Role'; |
14 | |
15 | # NOTE: |
16 | # we need to override the ->name |
17 | # method from Class::MOP::Package |
18 | # since we don't have an actual |
19 | # package for this. |
20 | # - SL |
21 | __PACKAGE__->meta->add_attribute('name' => (reader => 'name')); |
22 | |
23 | # NOTE: |
24 | # Again, since we don't have a real |
25 | # package to store our methods in, |
26 | # we use a HASH ref instead. |
27 | # - SL |
28 | __PACKAGE__->meta->add_attribute('methods' => ( |
29 | reader => 'get_method_map', |
30 | default => sub { {} } |
31 | )); |
32 | |
33 | sub new { |
34 | my ($class, %params) = @_; |
35 | # the roles param is required ... |
36 | ($_->isa('Moose::Meta::Role')) |
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37 | || Moose->throw_error("The list of roles must be instances of Moose::Meta::Role, not $_") |
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38 | foreach @{$params{roles}}; |
39 | # and the name is created from the |
40 | # roles if one has not been provided |
41 | $params{name} ||= (join "|" => map { $_->name } @{$params{roles}}); |
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42 | $class->_new(\%params); |
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43 | } |
44 | |
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45 | # This is largely a cope of what's in Moose::Meta::Role (itself |
46 | # largely a copy of Class::MOP::Class). However, we can't actually |
47 | # call add_package_symbol, because there's no package to which which |
48 | # add the symbol. |
49 | sub add_method { |
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50 | my ($self, $method_name, $method) = @_; |
51 | (defined $method_name && $method_name) |
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52 | || Moose->throw_error("You must define a method name"); |
53 | |
54 | my $body; |
55 | if (blessed($method)) { |
56 | $body = $method->body; |
57 | if ($method->package_name ne $self->name) { |
58 | $method = $method->clone( |
59 | package_name => $self->name, |
60 | name => $method_name |
61 | ) if $method->can('clone'); |
62 | } |
63 | } |
64 | else { |
65 | $body = $method; |
66 | $method = $self->wrap_method_body( body => $body, name => $method_name ); |
67 | } |
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68 | |
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69 | $self->get_method_map->{$method_name} = $method; |
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70 | } |
71 | |
72 | 1; |
73 | |
74 | __END__ |
75 | |
76 | =pod |
77 | |
78 | =head1 NAME |
79 | |
80 | Moose::Meta::Role::Composite - An object to represent the set of roles |
81 | |
82 | =head1 DESCRIPTION |
83 | |
84 | =head2 METHODS |
85 | |
86 | =over 4 |
87 | |
88 | =item B<new> |
89 | |
90 | =item B<meta> |
91 | |
92 | =item B<name> |
93 | |
94 | =item B<get_method_map> |
95 | |
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96 | =item B<add_method> |
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97 | |
98 | =back |
99 | |
100 | =head1 BUGS |
101 | |
102 | All complex software has bugs lurking in it, and this module is no |
103 | exception. If you find a bug please either email me, or add the bug |
104 | to cpan-RT. |
105 | |
106 | =head1 AUTHOR |
107 | |
108 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
109 | |
110 | =head1 COPYRIGHT AND LICENSE |
111 | |
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112 | Copyright 2006-2009 by Infinity Interactive, Inc. |
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113 | |
114 | L<http://www.iinteractive.com> |
115 | |
116 | This library is free software; you can redistribute it and/or modify |
117 | it under the same terms as Perl itself. |
118 | |
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119 | =cut |