2 package Moose::Meta::Role;
8 use Scalar::Util 'blessed';
10 use Sub::Name 'subname';
11 use Devel::GlobalDestruction 'in_global_destruction';
13 our $VERSION = '0.79';
14 $VERSION = eval $VERSION;
15 our $AUTHORITY = 'cpan:STEVAN';
17 use Moose::Meta::Class;
18 use Moose::Meta::Role::Method;
19 use Moose::Meta::Role::Method::Required;
20 use Moose::Meta::Role::Method::Conflicted;
22 use base 'Class::MOP::Module';
24 ## ------------------------------------------------------------------
26 ## I normally don't do this, but I am doing
27 ## a whole bunch of meta-programmin in this
28 ## module, so it just makes sense. For a clearer
29 ## picture of what is going on in the next
30 ## several lines of code, look at the really
31 ## big comment at the end of this file (right
34 ## ------------------------------------------------------------------
36 my $META = __PACKAGE__->meta;
38 ## ------------------------------------------------------------------
42 # since roles are lazy, we hold all the attributes
43 # of the individual role in 'statis' until which
44 # time when it is applied to a class. This means
45 # keeping a lot of things in hash maps, so we are
46 # using a little of that meta-programmin' magic
47 # here an saving lots of extra typin. And since
48 # many of these attributes above require similar
49 # functionality to support them, so we again use
50 # the wonders of meta-programmin' to deliver a
51 # very compact solution to this normally verbose
57 name => 'excluded_roles_map',
58 attr_reader => 'get_excluded_roles_map' ,
60 add => 'add_excluded_roles',
61 get_keys => 'get_excluded_roles_list',
62 existence => 'excludes_role',
66 name => 'required_methods',
67 attr_reader => 'get_required_methods_map',
69 remove => 'remove_required_methods',
70 get_values => 'get_required_method_list',
71 existence => 'requires_method',
75 name => 'attribute_map',
76 attr_reader => 'get_attribute_map',
78 get => 'get_attribute',
79 get_keys => 'get_attribute_list',
80 existence => 'has_attribute',
81 remove => 'remove_attribute',
86 my $attr_reader = $action->{attr_reader};
87 my $methods = $action->{methods};
89 # create the attribute
90 $META->add_attribute($action->{name} => (
91 reader => $attr_reader,
95 # create some helper methods
96 $META->add_method($methods->{add} => sub {
97 my ($self, @values) = @_;
98 $self->$attr_reader->{$_} = undef foreach @values;
99 }) if exists $methods->{add};
101 $META->add_method($methods->{get_keys} => sub {
103 keys %{$self->$attr_reader};
104 }) if exists $methods->{get_keys};
106 $META->add_method($methods->{get_values} => sub {
108 values %{$self->$attr_reader};
109 }) if exists $methods->{get_values};
111 $META->add_method($methods->{get} => sub {
112 my ($self, $name) = @_;
113 $self->$attr_reader->{$name}
114 }) if exists $methods->{get};
116 $META->add_method($methods->{existence} => sub {
117 my ($self, $name) = @_;
118 exists $self->$attr_reader->{$name} ? 1 : 0;
119 }) if exists $methods->{existence};
121 $META->add_method($methods->{remove} => sub {
122 my ($self, @values) = @_;
123 delete $self->$attr_reader->{$_} foreach @values;
124 }) if exists $methods->{remove};
127 $META->add_attribute(
129 reader => 'method_metaclass',
130 default => 'Moose::Meta::Role::Method',
133 $META->add_attribute(
134 'required_method_metaclass',
135 reader => 'required_method_metaclass',
136 default => 'Moose::Meta::Role::Method::Required',
139 $META->add_attribute(
140 'conflicted_method_metaclass',
141 reader => 'conflicted_method_metaclass',
142 default => 'Moose::Meta::Role::Method::Conflicted',
145 ## some things don't always fit, so they go here ...
150 unless ( defined $name && $name ) {
152 Moose->throw_error("You must provide a name for the attribute");
155 if (scalar @_ == 1 && ref($_[0]) eq 'HASH') {
161 $self->get_attribute_map->{$name} = $attr_desc;
164 sub add_required_methods {
169 if (!blessed($method)) {
170 $method = $self->required_method_metaclass->new(
174 $self->get_required_methods_map->{$method->name} = $method;
178 ## ------------------------------------------------------------------
182 # the before/around/after method modifiers are
183 # stored by name, but there can be many methods
184 # then associated with that name. So again we have
185 # lots of similar functionality, so we can do some
186 # meta-programmin' and save some time.
189 foreach my $modifier_type (qw[ before around after ]) {
191 my $attr_reader = "get_${modifier_type}_method_modifiers_map";
193 # create the attribute ...
194 $META->add_attribute("${modifier_type}_method_modifiers" => (
195 reader => $attr_reader,
196 default => sub { {} }
199 # and some helper methods ...
200 $META->add_method("get_${modifier_type}_method_modifiers" => sub {
201 my ($self, $method_name) = @_;
202 #return () unless exists $self->$attr_reader->{$method_name};
203 @{$self->$attr_reader->{$method_name}};
206 $META->add_method("has_${modifier_type}_method_modifiers" => sub {
207 my ($self, $method_name) = @_;
209 # for now we assume that if it exists,..
210 # it has at least one modifier in it
211 (exists $self->$attr_reader->{$method_name}) ? 1 : 0;
214 $META->add_method("add_${modifier_type}_method_modifier" => sub {
215 my ($self, $method_name, $method) = @_;
217 $self->$attr_reader->{$method_name} = []
218 unless exists $self->$attr_reader->{$method_name};
220 my $modifiers = $self->$attr_reader->{$method_name};
223 # check to see that we aren't adding the
224 # same code twice. We err in favor of the
225 # first on here, this may not be as expected
226 foreach my $modifier (@{$modifiers}) {
227 return if $modifier == $method;
230 push @{$modifiers} => $method;
235 ## ------------------------------------------------------------------
236 ## override method mofidiers
238 $META->add_attribute('override_method_modifiers' => (
239 reader => 'get_override_method_modifiers_map',
240 default => sub { {} }
244 # these are a little different because there
245 # can only be one per name, whereas the other
246 # method modifiers can have multiples.
249 sub add_override_method_modifier {
250 my ($self, $method_name, $method) = @_;
251 (!$self->has_method($method_name))
252 || Moose->throw_error("Cannot add an override of method '$method_name' " .
253 "because there is a local version of '$method_name'");
254 $self->get_override_method_modifiers_map->{$method_name} = $method;
257 sub has_override_method_modifier {
258 my ($self, $method_name) = @_;
260 # for now we assume that if it exists,..
261 # it has at least one modifier in it
262 (exists $self->get_override_method_modifiers_map->{$method_name}) ? 1 : 0;
265 sub get_override_method_modifier {
266 my ($self, $method_name) = @_;
267 $self->get_override_method_modifiers_map->{$method_name};
270 ## general list accessor ...
272 sub get_method_modifier_list {
273 my ($self, $modifier_type) = @_;
274 my $accessor = "get_${modifier_type}_method_modifiers_map";
275 keys %{$self->$accessor};
278 sub reset_package_cache_flag { (shift)->{'_package_cache_flag'} = undef }
279 sub update_package_cache_flag {
281 $self->{'_package_cache_flag'} = Class::MOP::check_package_cache_flag($self->name);
286 ## ------------------------------------------------------------------
289 $META->add_attribute('roles' => (
290 reader => 'get_roles',
291 default => sub { [] }
295 my ($self, $role) = @_;
296 (blessed($role) && $role->isa('Moose::Meta::Role'))
297 || Moose->throw_error("Roles must be instances of Moose::Meta::Role");
298 push @{$self->get_roles} => $role;
299 $self->reset_package_cache_flag;
302 sub calculate_all_roles {
308 $_->calculate_all_roles
309 } @{ $self->get_roles });
313 my ($self, $role_name) = @_;
315 || Moose->throw_error("You must supply a role name to look for");
316 # if we are it,.. then return true
317 return 1 if $role_name eq $self->name;
318 # otherwise.. check our children
319 foreach my $role (@{$self->get_roles}) {
320 return 1 if $role->does_role($role_name);
325 ## ------------------------------------------------------------------
331 my $current = Class::MOP::check_package_cache_flag($self->name);
333 if (defined $self->{'_package_cache_flag'} && $self->{'_package_cache_flag'} == $current) {
334 return $self->{'methods'} ||= {};
337 $self->{_package_cache_flag} = $current;
339 my $map = $self->{'methods'} ||= {};
341 my $role_name = $self->name;
342 my $method_metaclass = $self->method_metaclass;
344 my $all_code = $self->get_all_package_symbols('CODE');
346 foreach my $symbol (keys %{ $all_code }) {
347 my $code = $all_code->{$symbol};
349 next if exists $map->{$symbol} &&
350 defined $map->{$symbol} &&
351 $map->{$symbol}->body == $code;
353 my ($pkg, $name) = Class::MOP::get_code_info($code);
354 my $meta = Class::MOP::class_of($pkg);
356 if ($meta && $meta->isa('Moose::Meta::Role')) {
357 my $role = $meta->name;
358 next unless $self->does_role($role);
362 # in 5.10 constant.pm the constants show up
363 # as being in the right package, but in pre-5.10
364 # they show up as constant::__ANON__ so we
365 # make an exception here to be sure that things
366 # work as expected in both.
368 unless ($pkg eq 'constant' && $name eq '__ANON__') {
369 next if ($pkg || '') ne $role_name ||
370 (($name || '') ne '__ANON__' && ($pkg || '') ne $role_name);
374 $map->{$symbol} = $method_metaclass->wrap(
376 package_name => $role_name,
385 my ($self, $name) = @_;
386 $self->get_method_map->{$name};
390 my ($self, $name) = @_;
391 exists $self->get_method_map->{$name} ? 1 : 0
394 # FIXME this is copy-pasted from Class::MOP::Class
395 # refactor to inherit from some common base
396 sub wrap_method_body {
397 my ( $self, %args ) = @_;
399 ('CODE' eq ref $args{body})
400 || Moose->throw_error("Your code block must be a CODE reference");
402 $self->method_metaclass->wrap(
403 package_name => $self->name,
409 my ($self, $method_name, $method) = @_;
410 (defined $method_name && $method_name)
411 || Moose->throw_error("You must define a method name");
414 if (blessed($method)) {
415 $body = $method->body;
416 if ($method->package_name ne $self->name) {
417 $method = $method->clone(
418 package_name => $self->name,
420 ) if $method->can('clone');
425 $method = $self->wrap_method_body( body => $body, name => $method_name );
428 $method->attach_to_class($self);
430 $self->get_method_map->{$method_name} = $method;
432 my $full_method_name = ($self->name . '::' . $method_name);
433 $self->add_package_symbol(
434 { sigil => '&', type => 'CODE', name => $method_name },
435 subname($full_method_name => $body)
438 $self->update_package_cache_flag; # still valid, since we just added the method to the map, and if it was invalid before that then get_method_map updated it
441 sub find_method_by_name { (shift)->get_method(@_) }
443 sub get_method_list {
445 grep { !/^meta$/ } keys %{$self->get_method_map};
449 Carp::cluck("The alias_method method is deprecated. Use add_method instead.\n");
453 $self->add_method(@_);
456 ## ------------------------------------------------------------------
458 ## ------------------------------------------------------------------
461 my ($self, $other, @args) = @_;
464 || Moose->throw_error("You must pass in an blessed instance");
466 if ($other->isa('Moose::Meta::Role')) {
467 require Moose::Meta::Role::Application::ToRole;
468 return Moose::Meta::Role::Application::ToRole->new(@args)->apply($self, $other);
470 elsif ($other->isa('Moose::Meta::Class')) {
471 require Moose::Meta::Role::Application::ToClass;
472 return Moose::Meta::Role::Application::ToClass->new(@args)->apply($self, $other);
475 require Moose::Meta::Role::Application::ToInstance;
476 return Moose::Meta::Role::Application::ToInstance->new(@args)->apply($self, $other);
481 my ($class, @role_specs) = @_;
483 require Moose::Meta::Role::Application::RoleSummation;
484 require Moose::Meta::Role::Composite;
486 my (@roles, %role_params);
487 while (@role_specs) {
488 my ($role_name, $params) = @{ splice @role_specs, 0, 1 };
489 my $requested_role = Class::MOP::class_of($role_name);
491 my $actual_role = $requested_role->_role_for_combination($params);
492 push @roles => $actual_role;
494 next unless defined $params;
495 $role_params{$actual_role->name} = $params;
498 my $c = Moose::Meta::Role::Composite->new(roles => \@roles);
499 Moose::Meta::Role::Application::RoleSummation->new(
500 role_params => \%role_params
506 sub _role_for_combination {
507 my ($self, $params) = @_;
512 my ( $role, $package_name, %options ) = @_;
514 $options{package} = $package_name;
516 (ref $options{attributes} eq 'HASH')
517 || confess "You must pass a HASH ref of attributes"
518 if exists $options{attributes};
520 (ref $options{methods} eq 'HASH')
521 || confess "You must pass a HASH ref of methods"
522 if exists $options{methods};
524 my (%initialize_options) = %options;
525 delete @initialize_options{qw(
533 my $meta = $role->initialize( $package_name => %initialize_options );
535 $meta->_instantiate_module( $options{version}, $options{authority} );
538 $meta->add_method('meta' => sub {
539 $role->initialize(ref($_[0]) || $_[0]);
542 if (exists $options{attributes}) {
543 foreach my $attribute_name (keys %{$options{attributes}}) {
544 my $attr = $options{attributes}->{$attribute_name};
545 $meta->add_attribute($attribute_name => $attr);
549 if (exists $options{methods}) {
550 foreach my $method_name (keys %{$options{methods}}) {
551 $meta->add_method($method_name, $options{methods}->{$method_name});
555 Class::MOP::weaken_metaclass($meta->name)
556 if $meta->is_anon_role;
561 # anonymous roles. most of it is copied straight out of Class::MOP::Class.
562 # an intrepid hacker might find great riches if he unifies this code with that
563 # code in Class::MOP::Module or Class::MOP::Package
566 # this should be sufficient, if you have a
567 # use case where it is not, write a test and
569 my $ANON_ROLE_SERIAL = 0;
572 # we need a sufficiently annoying prefix
573 # this should suffice for now, this is
574 # used in a couple of places below, so
575 # need to put it up here for now.
576 my $ANON_ROLE_PREFIX = 'Moose::Meta::Role::__ANON__::SERIAL::';
580 no warnings 'uninitialized';
581 $self->name =~ /^$ANON_ROLE_PREFIX/;
584 sub create_anon_role {
585 my ($role, %options) = @_;
586 my $package_name = $ANON_ROLE_PREFIX . ++$ANON_ROLE_SERIAL;
587 return $role->create($package_name, %options);
591 # this will only get called for
592 # anon-roles, all other calls
593 # are assumed to occur during
594 # global destruction and so don't
595 # really need to be handled explicitly
599 return if in_global_destruction(); # it'll happen soon anyway and this just makes things more complicated
601 no warnings 'uninitialized';
602 return unless $self->name =~ /^$ANON_ROLE_PREFIX/;
604 # XXX: is this necessary for us? I don't understand what it's doing
607 # Moose does a weird thing where it replaces the metaclass for
608 # class when fixing metaclass incompatibility. In that case,
609 # we don't want to clean out the namespace now. We can detect
610 # that because Moose will explicitly update the singleton
611 # cache in Class::MOP.
612 #my $current_meta = Class::MOP::get_metaclass_by_name($self->name);
613 #return if $current_meta ne $self;
615 my ($serial_id) = ($self->name =~ /^$ANON_ROLE_PREFIX(\d+)/);
617 foreach my $key (keys %{$ANON_ROLE_PREFIX . $serial_id}) {
618 delete ${$ANON_ROLE_PREFIX . $serial_id}{$key};
620 delete ${'main::' . $ANON_ROLE_PREFIX}{$serial_id . '::'};
624 #####################################################################
626 ## This is Moose::Meta::Role as defined by Moose (plus the use of
627 ## MooseX::AttributeHelpers module). It is here as a reference to
628 ## make it easier to see what is happening above with all the meta
630 #####################################################################
633 # metaclass => 'Collection::Array',
634 # reader => 'get_roles',
635 # isa => 'ArrayRef[Moose::Meta::Role]',
636 # default => sub { [] },
638 # 'push' => 'add_role',
642 # has 'excluded_roles_map' => (
643 # metaclass => 'Collection::Hash',
644 # reader => 'get_excluded_roles_map',
645 # isa => 'HashRef[Str]',
647 # # Not exactly set, cause it sets multiple
648 # 'set' => 'add_excluded_roles',
649 # 'keys' => 'get_excluded_roles_list',
650 # 'exists' => 'excludes_role',
654 # has 'attribute_map' => (
655 # metaclass => 'Collection::Hash',
656 # reader => 'get_attribute_map',
657 # isa => 'HashRef[Str]',
659 # # 'set' => 'add_attribute' # has some special crap in it
660 # 'get' => 'get_attribute',
661 # 'keys' => 'get_attribute_list',
662 # 'exists' => 'has_attribute',
663 # # Not exactly delete, cause it sets multiple
664 # 'delete' => 'remove_attribute',
668 # has 'required_methods' => (
669 # metaclass => 'Collection::Hash',
670 # reader => 'get_required_methods_map',
671 # isa => 'HashRef[Moose::Meta::Role::Method::Required]',
673 # # not exactly set, or delete since it works for multiple
674 # 'set' => 'add_required_methods',
675 # 'delete' => 'remove_required_methods',
676 # 'keys' => 'get_required_method_list',
677 # 'exists' => 'requires_method',
681 # # the before, around and after modifiers are
682 # # HASH keyed by method-name, with ARRAY of
683 # # CODE refs to apply in that order
685 # has 'before_method_modifiers' => (
686 # metaclass => 'Collection::Hash',
687 # reader => 'get_before_method_modifiers_map',
688 # isa => 'HashRef[ArrayRef[CodeRef]]',
690 # 'keys' => 'get_before_method_modifiers',
691 # 'exists' => 'has_before_method_modifiers',
692 # # This actually makes sure there is an
693 # # ARRAY at the given key, and pushed onto
694 # # it. It also checks for duplicates as well
695 # # 'add' => 'add_before_method_modifier'
699 # has 'after_method_modifiers' => (
700 # metaclass => 'Collection::Hash',
701 # reader =>'get_after_method_modifiers_map',
702 # isa => 'HashRef[ArrayRef[CodeRef]]',
704 # 'keys' => 'get_after_method_modifiers',
705 # 'exists' => 'has_after_method_modifiers',
706 # # This actually makes sure there is an
707 # # ARRAY at the given key, and pushed onto
708 # # it. It also checks for duplicates as well
709 # # 'add' => 'add_after_method_modifier'
713 # has 'around_method_modifiers' => (
714 # metaclass => 'Collection::Hash',
715 # reader =>'get_around_method_modifiers_map',
716 # isa => 'HashRef[ArrayRef[CodeRef]]',
718 # 'keys' => 'get_around_method_modifiers',
719 # 'exists' => 'has_around_method_modifiers',
720 # # This actually makes sure there is an
721 # # ARRAY at the given key, and pushed onto
722 # # it. It also checks for duplicates as well
723 # # 'add' => 'add_around_method_modifier'
727 # # override is similar to the other modifiers
728 # # except that it is not an ARRAY of code refs
729 # # but instead just a single name->code mapping
731 # has 'override_method_modifiers' => (
732 # metaclass => 'Collection::Hash',
733 # reader =>'get_override_method_modifiers_map',
734 # isa => 'HashRef[CodeRef]',
736 # 'keys' => 'get_override_method_modifier',
737 # 'exists' => 'has_override_method_modifier',
738 # 'add' => 'add_override_method_modifier', # checks for local method ..
742 #####################################################################
753 Moose::Meta::Role - The Moose Role metaclass
757 This class is a subclass of L<Class::MOP::Module> that provides
758 additional Moose-specific functionality.
760 It's API looks a lot like L<Moose::Meta::Class>, but internally it
761 implements many things differently. This may change in the future.
765 C<Moose::Meta::Role> is a subclass of L<Class::MOP::Module>.
773 =item B<< Moose::Meta::Role->initialize($role_name) >>
775 This method creates a new role object with the provided name.
777 =item B<< Moose::Meta::Role->combine( [ $role => { ... } ], [ $role ], ... ) >>
779 This method accepts a list of array references. Each array reference
780 should contain a role name as its first element. The second element is
781 an optional hash reference. The hash reference can contain C<exclude>
782 and C<alias> keys to control how methods are composed from the role.
784 The return value is a new L<Moose::Meta::Role::Composite> that
785 represents the combined roles.
787 =item B<< Moose::Meta::Role->create($name, %options) >>
789 This method is identical to the L<Moose::Meta::Class> C<create>
792 =item B<< Moose::Meta::Role->create_anon_role >>
794 This method is identical to the L<Moose::Meta::Class>
795 C<create_anon_class> method.
797 =item B<< $metarole->is_anon_role >>
799 Returns true if the role is an anonymous role.
803 =head2 Role application
807 =item B<< $metarole->apply( $thing, @options ) >>
809 This method applies a role to the given C<$thing>. That can be another
810 L<Moose::Meta::Role>, object, a L<Moose::Meta::Class> object, or a
811 (non-meta) object instance.
813 The options are passed directly to the constructor for the appropriate
814 L<Moose::Meta::Role::Application> subclass.
816 Note that this will apply the role even if the C<$thing> in question already
817 C<does> this role. L<Moose::Util/does_role> is a convenient wrapper for
818 finding out if role application is necessary.
822 =head2 Roles and other roles
826 =item B<< $metarole->get_roles >>
828 This returns an array reference of roles which this role does. This
829 list may include duplicates.
831 =item B<< $metarole->calculate_all_roles >>
833 This returns a I<unique> list of all roles that this role does, and
834 all the roles that its roles do.
836 =item B<< $metarole->does_role($role_name) >>
838 Given a role I<name>, returns true if this role does the given
841 =item B<< $metarole->add_role($role) >>
843 Given a L<Moose::Meta::Role> object, this adds the role to the list of
844 roles that the role does.
846 =item B<< $metarole->get_excluded_roles_list >>
848 Returns a list of role names which this role excludes.
850 =item B<< $metarole->excludes_role($role_name) >>
852 Given a role I<name>, returns true if this role excludes the named
855 =item B<< $metarole->add_excluded_roles(@role_names) >>
857 Given one or more role names, adds those roles to the list of excluded
864 The methods for dealing with a role's methods are all identical in API
865 and behavior to the same methods in L<Class::MOP::Class>.
869 =item B<< $metarole->method_metaclass >>
871 Returns the method metaclass name for the role. This defaults to
872 L<Moose::Meta::Role::Method>.
874 =item B<< $metarole->get_method($name) >>
876 =item B<< $metarole->has_method($name) >>
878 =item B<< $metarole->add_method( $name, $body ) >>
880 =item B<< $metarole->get_method_list >>
882 =item B<< $metarole->get_method_map >>
884 =item B<< $metarole->find_method_by_name($name) >>
886 These methods are all identical to the methods of the same name in
893 As with methods, the methods for dealing with a role's attribute are
894 all identical in API and behavior to the same methods in
895 L<Class::MOP::Class>.
897 However, attributes stored in this class are I<not> stored as
898 objects. Rather, the attribute definition is stored as a hash
899 reference. When a role is composed into a class, this hash reference
900 is passed directly to the metaclass's C<add_attribute> method.
902 This is quite likely to change in the future.
906 =item B<< $metarole->get_attribute($attribute_name) >>
908 =item B<< $metarole->has_attribute($attribute_name) >>
910 =item B<< $metarole->get_attribute_map >>
912 =item B<< $metarole->get_attribute_list >>
914 =item B<< $metarole->add_attribute($name, %options) >>
916 =item B<< $metarole->remove_attribute($attribute_name) >>
920 =head2 Required methods
924 =item B<< $metarole->get_required_method_list >>
926 Returns the list of methods required by the role.
928 =item B<< $metarole->requires_method($name) >>
930 Returns true if the role requires the named method.
932 =item B<< $metarole->add_required_methods(@names) >>
934 Adds the named methods to the role's list of required methods.
936 =item B<< $metarole->remove_required_methods(@names) >>
938 Removes the named methods from the role's list of required methods.
942 =head2 Method modifiers
944 These methods act like their counterparts in L<Class::Mop::Class> and
945 L<Moose::Meta::Class>.
947 However, method modifiers are simply stored internally, and are not
948 applied until the role itself is applied to a class.
952 =item B<< $metarole->add_after_method_modifier($method_name, $method) >>
954 =item B<< $metarole->add_around_method_modifier($method_name, $method) >>
956 =item B<< $metarole->add_before_method_modifier($method_name, $method) >>
958 =item B<< $metarole->add_override_method_modifier($method_name, $method) >>
960 These methods all add an appropriate modifier to the internal list of
963 =item B<< $metarole->has_after_method_modifiers >>
965 =item B<< $metarole->has_around_method_modifiers >>
967 =item B<< $metarole->has_before_method_modifiers >>
969 =item B<< $metarole->has_override_method_modifier >>
971 Return true if the role has any modifiers of the given type.
973 =item B<< $metarole->get_after_method_modifiers($method_name) >>
975 =item B<< $metarole->get_around_method_modifiers($method_name) >>
977 =item B<< $metarole->get_before_method_modifiers($method_name) >>
979 Given a method name, returns a list of the appropriate modifiers for
982 =item B<< $metarole->get_override_method_modifier($method_name) >>
984 Given a method name, returns the override method modifier for that
985 method, if it has one.
993 =item B<< Moose::Meta::Role->meta >>
995 This will return a L<Class::MOP::Class> instance for this class.
1001 All complex software has bugs lurking in it, and this module is no
1002 exception. If you find a bug please either email me, or add the bug
1007 Stevan Little E<lt>stevan@iinteractive.comE<gt>
1009 =head1 COPYRIGHT AND LICENSE
1011 Copyright 2006-2009 by Infinity Interactive, Inc.
1013 L<http://www.iinteractive.com>
1015 This library is free software; you can redistribute it and/or modify
1016 it under the same terms as Perl itself.