package Mouse::Meta::Role;
-use Mouse::Util qw(:meta not_supported english_list); # enables strict and warnings
+use Mouse::Util qw(:meta not_supported); # enables strict and warnings
use Mouse::Meta::Module;
our @ISA = qw(Mouse::Meta::Module);
-sub method_metaclass(){ 'Mouse::Meta::Role::Method' } # required for get_method()
+sub method_metaclass;
sub _construct_meta {
my $class = shift;
my %args = @_;
- $args{methods} ||= {};
- $args{attributes} ||= {};
- $args{required_methods} ||= [];
- $args{roles} ||= [];
+ $args{methods} = {};
+ $args{attributes} = {};
+ $args{required_methods} = [];
+ $args{roles} = [];
my $self = bless \%args, ref($class) || $class;
if($class ne __PACKAGE__){
return $self->create(undef, @_);
}
-sub is_anon_role{
- return exists $_[0]->{anon_serial_id};
-}
+sub is_anon_role;
+
+sub get_roles;
-sub get_roles { $_[0]->{roles} }
+sub calculate_all_roles {
+ my $self = shift;
+ my %seen;
+ return grep { !$seen{ $_->name }++ }
+ ($self, map { $_->calculate_all_roles } @{ $self->get_roles });
+}
sub get_required_method_list{
return @{ $_[0]->{required_methods} };
my $name = shift;
$self->{attributes}->{$name} = (@_ == 1) ? $_[0] : { @_ };
+ return;
}
sub _check_required_methods{
- my($role, $applicant, $args) = @_;
+ my($role, $consumer, $args) = @_;
if($args->{_to} eq 'role'){
- $applicant->add_required_methods($role->get_required_method_list);
+ $consumer->add_required_methods($role->get_required_method_list);
}
else{ # to class or instance
- my $applicant_class_name = $applicant->name;
+ my $consumer_class_name = $consumer->name;
my @missing;
foreach my $method_name(@{$role->{required_methods}}){
next if exists $args->{aliased_methods}{$method_name};
next if exists $role->{methods}{$method_name};
- next if $applicant_class_name->can($method_name);
+ next if $consumer_class_name->can($method_name);
push @missing, $method_name;
}
$role->throw_error(sprintf "'%s' requires the method%s %s to be implemented by '%s'",
$role->name,
(@missing == 1 ? '' : 's'), # method or methods
- english_list(map{ sprintf q{'%s'}, $_ } @missing),
- $applicant_class_name);
+ Mouse::Util::quoted_english_list(@missing),
+ $consumer_class_name);
}
}
}
sub _apply_methods{
- my($role, $applicant, $args) = @_;
+ my($role, $consumer, $args) = @_;
my $alias = $args->{-alias};
my $excludes = $args->{-excludes};
my $code = $role->get_method_body($method_name);
if(!exists $excludes->{$method_name}){
- if(!$applicant->has_method($method_name)){
+ if(!$consumer->has_method($method_name)){
# The third argument $role is used in Role::Composite
- $applicant->add_method($method_name => $code, $role);
+ $consumer->add_method($method_name => $code, $role);
}
}
if(exists $alias->{$method_name}){
my $dstname = $alias->{$method_name};
- my $dstcode = $applicant->get_method_body($dstname);
+ my $dstcode = $consumer->get_method_body($dstname);
if(defined($dstcode) && $dstcode != $code){
$role->throw_error("Cannot create a method alias if a local method of the same name exists");
}
else{
- $applicant->add_method($dstname => $code, $role);
+ $consumer->add_method($dstname => $code, $role);
}
}
}
}
sub _apply_attributes{
- my($role, $applicant, $args) = @_;
+ my($role, $consumer, $args) = @_;
for my $attr_name ($role->get_attribute_list) {
- next if $applicant->has_attribute($attr_name);
+ next if $consumer->has_attribute($attr_name);
- $applicant->add_attribute($attr_name => $role->get_attribute($attr_name));
+ $consumer->add_attribute($attr_name => $role->get_attribute($attr_name));
}
return;
}
sub _apply_modifiers{
- my($role, $applicant, $args) = @_;
+ my($role, $consumer, $args) = @_;
if(my $modifiers = $role->{override_method_modifiers}){
foreach my $method_name (keys %{$modifiers}){
- $applicant->add_override_method_modifier($method_name => $modifiers->{$method_name});
+ $consumer->add_override_method_modifier($method_name => $modifiers->{$method_name});
}
}
for my $modifier_type (qw/before around after/) {
- my $modifiers = $role->{"${modifier_type}_method_modifiers"}
+ my $table = $role->{"${modifier_type}_method_modifiers"}
or next;
my $add_modifier = "add_${modifier_type}_method_modifier";
- foreach my $method_name (keys %{$modifiers}){
- foreach my $code(@{ $modifiers->{$method_name} }){
- next if $applicant->{"_applied_$modifier_type"}{$method_name, $code}++; # skip applied modifiers
- $applicant->$add_modifier($method_name => $code);
+ while(my($method_name, $modifiers) = each %{$table}){
+ foreach my $code(@{ $modifiers }){
+ next if $consumer->{"_applied_$modifier_type"}{$method_name, $code}++; # skip applied modifiers
+ $consumer->$add_modifier($method_name => $code);
}
}
}
}
sub _append_roles{
- my($role, $applicant, $args) = @_;
+ my($role, $consumer, $args) = @_;
- my $roles = ($args->{_to} eq 'role') ? $applicant->get_roles : $applicant->roles;
+ my $roles = $consumer->{roles};
foreach my $r($role, @{$role->get_roles}){
- if(!$applicant->does_role($r->name)){
+ if(!$consumer->does_role($r)){
push @{$roles}, $r;
}
}
# Moose uses Application::ToInstance, Application::ToClass, Application::ToRole
sub apply {
- my $self = shift;
- my $applicant = shift;
+ my $self = shift;
+ my $consumer = shift;
my %args = (@_ == 1) ? %{ $_[0] } : @_;
- if($applicant->isa('Mouse::Meta::Class')){ # Application::ToClass
+ my $instance;
+
+ if(Mouse::Util::is_a_metaclass($consumer)){ # Application::ToClass
$args{_to} = 'class';
}
- elsif($applicant->isa('Mouse::Meta::Role')){ # Application::ToRole
+ elsif(Mouse::Util::is_a_metarole($consumer)){ # Application::ToRole
$args{_to} = 'role';
}
else{ # Appplication::ToInstance
$args{_to} = 'instance';
+ $instance = $consumer;
- my $metaclass = $applicant->meta->create_anon_class(
- superclasses => [ref $applicant],
+ $consumer = (Mouse::Util::class_of($instance) || 'Mouse::Meta::Class')->create_anon_class(
+ superclasses => [ref $instance],
cache => 1,
);
- bless $applicant, $metaclass->name; # rebless
-
- $applicant = $metaclass;
}
if($args{alias} && !exists $args{-alias}){
}
}
- $self->_check_required_methods($applicant, \%args);
- $self->_apply_attributes($applicant, \%args);
- $self->_apply_methods($applicant, \%args);
- $self->_apply_modifiers($applicant, \%args);
- $self->_append_roles($applicant, \%args);
+ $self->_check_required_methods($consumer, \%args);
+ $self->_apply_attributes($consumer, \%args);
+ $self->_apply_methods($consumer, \%args);
+ $self->_apply_modifiers($consumer, \%args);
+ $self->_append_roles($consumer, \%args);
+
+
+ if(defined $instance){ # Application::ToInstance
+ # rebless instance
+ bless $instance, $consumer->name;
+ $consumer->_initialize_object($instance, $instance);
+ }
+
return;
}
return $composite;
}
-for my $modifier_type (qw/before after around/) {
-
- my $modifier = "${modifier_type}_method_modifiers";
- my $add_method_modifier = sub {
- my ($self, $method_name, $method) = @_;
-
- push @{ $self->{$modifier}->{$method_name} ||= [] }, $method;
- return;
- };
- my $has_method_modifiers = sub{
- my($self, $method_name) = @_;
- my $m = $self->{$modifier}->{$method_name};
- return $m && @{$m} != 0;
- };
- my $get_method_modifiers = sub {
- my ($self, $method_name) = @_;
- return @{ $self->{$modifier}->{$method_name} ||= [] }
- };
-
- no strict 'refs';
- *{ 'add_' . $modifier_type . '_method_modifier' } = $add_method_modifier;
- *{ 'has_' . $modifier_type . '_method_modifiers' } = $has_method_modifiers;
- *{ 'get_' . $modifier_type . '_method_modifiers' } = $get_method_modifiers;
-}
+sub add_before_method_modifier;
+sub add_around_method_modifier;
+sub add_after_method_modifier;
+
+sub get_before_method_modifiers;
+sub get_around_method_modifiers;
+sub get_after_method_modifiers;
sub add_override_method_modifier{
my($self, $method_name, $method) = @_;
$self->{override_method_modifiers}->{$method_name} = $method;
}
-sub has_override_method_modifier {
- my ($self, $method_name) = @_;
- return exists $self->{override_method_modifiers}->{$method_name};
-}
-
sub get_override_method_modifier {
my ($self, $method_name) = @_;
return $self->{override_method_modifiers}->{$method_name};
}
-sub get_method_modifier_list {
- my($self, $modifier_type) = @_;
-
- return keys %{ $self->{$modifier_type . '_method_modifiers'} };
-}
-
-# This is currently not passing all the Moose tests.
sub does_role {
my ($self, $role_name) = @_;
(defined $role_name)
|| $self->throw_error("You must supply a role name to look for");
+ $role_name = $role_name->name if ref $role_name;
+
# if we are it,.. then return true
return 1 if $role_name eq $self->name;
# otherwise.. check our children
return 0;
}
-
1;
-
__END__
=head1 NAME
Mouse::Meta::Role - The Mouse Role metaclass
+=head1 VERSION
+
+This document describes Mouse version 0.50_03
+
=head1 SEE ALSO
L<Moose::Meta::Role>
projects / gitmo/Mouse.git / blobdiff