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1 | package Class::MOP::MiniTrait; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | use Class::Load qw(load_class); |
7 | |
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8 | sub apply { |
9 | my ( $to_class, $trait ) = @_; |
10 | |
11 | for ( grep { !ref } $to_class, $trait ) { |
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12 | load_class($_); |
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13 | $_ = Class::MOP::Class->initialize($_); |
14 | } |
15 | |
16 | for my $meth ( $trait->get_all_methods ) { |
17 | my $meth_name = $meth->name; |
18 | |
19 | if ( $to_class->find_method_by_name($meth_name) ) { |
20 | $to_class->add_around_method_modifier( $meth_name, $meth->body ); |
21 | } |
22 | else { |
23 | $to_class->add_method( $meth_name, $meth->clone ); |
24 | } |
25 | } |
26 | } |
27 | |
28 | # We can't load this with use, since it may be loaded and used from Class::MOP |
29 | # (via CMOP::Class, etc). However, if for some reason this module is loaded |
30 | # _without_ first loading Class::MOP we need to require Class::MOP so we can |
31 | # use it and CMOP::Class. |
32 | require Class::MOP; |
33 | |
34 | 1; |
35 | |
36 | __END__ |
37 | |
38 | =pod |
39 | |
40 | =head1 NAME |
41 | |
42 | Class::MOP::MiniTrait - Extremely limited trait application |
43 | |
44 | =head1 DESCRIPTION |
45 | |
46 | This package provides a single function, C<apply>, which does a half-assed job |
47 | of applying a trait to a class. It exists solely for use inside Class::MOP and |
48 | L<Moose> core classes. |
49 | |
50 | =cut |
51 | |