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1 | package Moose::Meta::Role::Application::ToInstance; |
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 | use List::MoreUtils 'all'; |
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9 | |
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10 | use base 'Moose::Meta::Role::Application'; |
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11 | |
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12 | __PACKAGE__->meta->add_attribute('rebless_params' => ( |
13 | reader => 'rebless_params', |
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14 | default => sub { {} }, |
15 | Class::MOP::_definition_context(), |
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16 | )); |
17 | |
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18 | sub apply { |
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19 | my ( $self, $role, $object, $args ) = @_; |
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20 | |
21 | my $obj_meta = Class::MOP::class_of($object) || 'Moose::Meta::Class'; |
22 | |
23 | # This is a special case to handle the case where the object's metaclass |
24 | # is a Class::MOP::Class, but _not_ a Moose::Meta::Class (for example, |
25 | # when applying a role to a Moose::Meta::Attribute object). |
26 | $obj_meta = 'Moose::Meta::Class' |
27 | unless $obj_meta->isa('Moose::Meta::Class'); |
28 | |
29 | my $class = $obj_meta->create_anon_class( |
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30 | superclasses => [ blessed($object) ], |
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31 | roles => [ $role, keys(%$args) ? ($args) : () ], |
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32 | cache => (all { $_ eq '-alias' || $_ eq '-excludes' } keys %$args), |
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33 | ); |
34 | |
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35 | $class->rebless_instance( $object, %{ $self->rebless_params } ); |
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36 | } |
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37 | |
38 | 1; |
39 | |
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40 | # ABSTRACT: Compose a role into an instance |
41 | |
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42 | __END__ |
43 | |
44 | =pod |
45 | |
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46 | =head1 DESCRIPTION |
47 | |
48 | =head2 METHODS |
49 | |
50 | =over 4 |
51 | |
52 | =item B<new> |
53 | |
54 | =item B<meta> |
55 | |
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56 | =item B<apply> |
57 | |
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58 | =item B<rebless_params> |
59 | |
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60 | =back |
61 | |
62 | =head1 BUGS |
63 | |
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64 | See L<Moose/BUGS> for details on reporting bugs. |
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65 | |
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66 | =cut |
67 | |