1 package Mouse::Meta::Role;
2 use Mouse::Util qw(:meta); # enables strict and warnings
4 use Mouse::Meta::Module;
5 our @ISA = qw(Mouse::Meta::Module);
15 $args{attributes} = {};
16 $args{required_methods} = [];
19 my $self = bless \%args, ref($class) || $class;
20 if($class ne __PACKAGE__){
21 $self->meta->_initialize_object($self, \%args);
28 return $self->create(undef, @_);
35 sub calculate_all_roles {
38 return grep { !$seen{ $_->name }++ }
39 ($self, map { $_->calculate_all_roles } @{ $self->get_roles });
42 sub get_required_method_list{
43 return @{ $_[0]->{required_methods} };
46 sub add_required_methods {
47 my($self, @methods) = @_;
48 my %required = map{ $_ => 1 } @{$self->{required_methods}};
49 push @{$self->{required_methods}}, grep{ !$required{$_}++ && !$self->has_method($_) } @methods;
54 my($self, $name) = @_;
55 return scalar( grep{ $_ eq $name } @{ $self->{required_methods} } ) != 0;
62 $self->{attributes}->{$name} = (@_ == 1) ? $_[0] : { @_ };
70 require 'Mouse/Meta/Role/Application.pm';
71 return Mouse::Meta::Role::Application->new(@_)->apply($self, $consumer);
75 my($self, @role_specs) = @_;
77 require 'Mouse/Meta/Role/Composite.pm';
78 return Mouse::Meta::Role::Composite->new(roles => \@role_specs);
81 sub add_before_method_modifier;
82 sub add_around_method_modifier;
83 sub add_after_method_modifier;
85 sub get_before_method_modifiers;
86 sub get_around_method_modifiers;
87 sub get_after_method_modifiers;
89 sub add_override_method_modifier{
90 my($self, $method_name, $method) = @_;
92 if($self->has_method($method_name)){
93 # This error happens in the override keyword or during role composition,
94 # so I added a message, "A local method of ...", only for compatibility (gfx)
95 $self->throw_error("Cannot add an override of method '$method_name' "
96 . "because there is a local version of '$method_name'"
97 . "(A local method of the same name as been found)");
100 $self->{override_method_modifiers}->{$method_name} = $method;
103 sub get_override_method_modifier {
104 my ($self, $method_name) = @_;
105 return $self->{override_method_modifiers}->{$method_name};
109 my ($self, $role_name) = @_;
112 || $self->throw_error("You must supply a role name to look for");
114 $role_name = $role_name->name if ref $role_name;
116 # if we are it,.. then return true
117 return 1 if $role_name eq $self->name;
118 # otherwise.. check our children
119 for my $role (@{ $self->get_roles }) {
120 return 1 if $role->does_role($role_name);
130 Mouse::Meta::Role - The Mouse Role metaclass
134 This document describes Mouse version 0.76
138 This class is a meta object protocol for Mouse roles,
139 which is a subset of Moose::Meta:::Role.