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38bf2a25 |
1 | package Class::MOP::MiniTrait; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
38bf2a25 |
6 | sub apply { |
7 | my ( $to_class, $trait ) = @_; |
8 | |
9 | for ( grep { !ref } $to_class, $trait ) { |
10 | Class::MOP::load_class($_); |
11 | $_ = Class::MOP::Class->initialize($_); |
12 | } |
13 | |
14 | for my $meth ( $trait->get_all_methods ) { |
15 | my $meth_name = $meth->name; |
16 | |
17 | if ( $to_class->find_method_by_name($meth_name) ) { |
18 | $to_class->add_around_method_modifier( $meth_name, $meth->body ); |
19 | } |
20 | else { |
21 | $to_class->add_method( $meth_name, $meth->clone ); |
22 | } |
23 | } |
24 | } |
25 | |
26 | # We can't load this with use, since it may be loaded and used from Class::MOP |
27 | # (via CMOP::Class, etc). However, if for some reason this module is loaded |
28 | # _without_ first loading Class::MOP we need to require Class::MOP so we can |
29 | # use it and CMOP::Class. |
30 | require Class::MOP; |
31 | |
32 | 1; |
33 | |
34 | __END__ |
35 | |
36 | =pod |
37 | |
38 | =head1 NAME |
39 | |
40 | Class::MOP::MiniTrait - Extremely limited trait application |
41 | |
42 | =head1 DESCRIPTION |
43 | |
44 | This package provides a single function, C<apply>, which does a half-assed job |
45 | of applying a trait to a class. It exists solely for use inside Class::MOP and |
46 | L<Moose> core classes. |
47 | |
48 | =cut |
49 | |