1 package MooseX::ClassAttribute::Trait::Application::ToRole;
6 use Moose::Util::MetaRole;
7 use MooseX::ClassAttribute::Trait::Application::ToClass;
9 use namespace::autoclean;
12 with 'MooseX::ClassAttribute::Trait::Application';
20 $role2 = Moose::Util::MetaRole::apply_metaroles(
23 role => ['MooseX::ClassAttribute::Trait::Role'],
24 application_to_class =>
25 ['MooseX::ClassAttribute::Trait::Application::ToClass'],
26 application_to_role =>
27 ['MooseX::ClassAttribute::Trait::Application::ToRole'],
31 $self->$orig( $role1, $role2 );
34 sub _apply_class_attributes {
39 foreach my $attribute_name ( $role1->get_class_attribute_list() ) {
40 if ( $role2->has_class_attribute($attribute_name)
41 && $role2->get_class_attribute($attribute_name)
42 != $role1->get_class_attribute($attribute_name) ) {
45 Moose->throw_error( "Role '"
47 . "' has encountered a class attribute conflict "
48 . "during composition. This is fatal error and cannot be disambiguated."
52 $role2->add_class_attribute(
53 $role1->get_class_attribute($attribute_name)->clone() );
60 # ABSTRACT: A trait that supports applying class attributes to roles
68 This trait is used to allow the application of roles containing class
73 See L<MooseX::ClassAttribute> for details.