/usr/lib/perl5/Mouse/Meta/Role/Application.pm is in libmouse-perl 0.97-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 | package Mouse::Meta::Role::Application;
use Mouse::Util qw(:meta);
sub new {
my $class = shift;
my $args = $class->Mouse::Object::BUILDARGS(@_);
if(exists $args->{exclude} or exists $args->{alias}) {
warnings::warnif(deprecated =>
'The alias and excludes options for role application have been'
. ' renamed -alias and -exclude');
if($args->{alias} && !exists $args->{-alias}){
$args->{-alias} = $args->{alias};
}
if($args->{excludes} && !exists $args->{-excludes}){
$args->{-excludes} = $args->{excludes};
}
}
$args->{aliased_methods} = {};
if(my $alias = $args->{-alias}){
@{$args->{aliased_methods}}{ values %{$alias} } = ();
}
if(my $excludes = $args->{-excludes}){
$args->{-excludes} = {}; # replace with a hash ref
if(ref $excludes){
%{$args->{-excludes}} = (map{ $_ => undef } @{$excludes});
}
else{
$args->{-excludes}{$excludes} = undef;
}
}
my $self = bless $args, $class;
if($class ne __PACKAGE__){
$self->meta->_initialize_object($self, $args);
}
return $self;
}
sub apply {
my($self, $role, $consumer, @extra) = @_;
my $instance;
if(Mouse::Util::is_a_metaclass($consumer)) { # Application::ToClass
$self->{_to} = 'class';
}
elsif(Mouse::Util::is_a_metarole($consumer)) { # Application::ToRole
$self->{_to} = 'role';
}
else { # Appplication::ToInstance
$self->{_to} = 'instance';
$instance = $consumer;
$consumer = (Mouse::Util::class_of($instance) || 'Mouse::Meta::Class')
->create_anon_class(
superclasses => [ref $instance],
roles => [$role],
cache => 1,
in_application_to_instance => 1, # suppress to apply roles
);
}
#$self->check_role_exclusions($role, $consumer, @extra);
$self->check_required_methods($role, $consumer, @extra);
#$self->check_required_attributes($role, $consumer, @extra);
$self->apply_attributes($role, $consumer, @extra);
$self->apply_methods($role, $consumer, @extra);
#$self->apply_override_method_modifiers($role, $consumer, @extra);
#$self->apply_before_method_modifiers($role, $consumer, @extra);
#$self->apply_around_method_modifiers($role, $consumer, @extra);
#$self->apply_after_method_modifiers($role, $consumer, @extra);
$self->apply_modifiers($role, $consumer, @extra);
$self->_append_roles($role, $consumer);
if(defined $instance){ # Application::ToInstance
# rebless instance
bless $instance, $consumer->name;
$consumer->_initialize_object($instance, $instance, 1);
}
return;
}
sub check_required_methods {
my($self, $role, $consumer) = @_;
if($self->{_to} eq 'role'){
$consumer->add_required_methods($role->get_required_method_list);
}
else{ # to class or instance
my $consumer_class_name = $consumer->name;
my @missing;
foreach my $method_name(@{$role->{required_methods}}){
next if exists $self->{aliased_methods}{$method_name};
next if exists $role->{methods}{$method_name};
next if $consumer_class_name->can($method_name);
push @missing, $method_name;
}
if(@missing){
$role->throw_error(sprintf "'%s' requires the method%s %s to be implemented by '%s'",
$role->name,
(@missing == 1 ? '' : 's'), # method or methods
Mouse::Util::quoted_english_list(@missing),
$consumer_class_name);
}
}
return;
}
sub apply_methods {
my($self, $role, $consumer) = @_;
my $alias = $self->{-alias};
my $excludes = $self->{-excludes};
foreach my $method_name($role->get_method_list){
next if $method_name eq 'meta';
my $code = $role->get_method_body($method_name);
if(!exists $excludes->{$method_name}){
if(!$consumer->has_method($method_name)){
# The third argument $role is used in Role::Composite
$consumer->add_method($method_name => $code, $role);
}
}
if(exists $alias->{$method_name}){
my $dstname = $alias->{$method_name};
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{
$consumer->add_method($dstname => $code, $role);
}
}
}
return;
}
sub apply_attributes {
my($self, $role, $consumer) = @_;
for my $attr_name ($role->get_attribute_list) {
next if $consumer->has_attribute($attr_name);
$consumer->add_attribute($attr_name
=> $role->get_attribute($attr_name));
}
return;
}
sub apply_modifiers {
my($self, $role, $consumer) = @_;
if(my $modifiers = $role->{override_method_modifiers}){
foreach my $method_name (keys %{$modifiers}){
$consumer->add_override_method_modifier(
$method_name => $modifiers->{$method_name});
}
}
for my $modifier_type (qw/before around after/) {
my $table = $role->{"${modifier_type}_method_modifiers"}
or next;
my $add_modifier = "add_${modifier_type}_method_modifier";
while(my($method_name, $modifiers) = each %{$table}){
foreach my $code(@{ $modifiers }) {
# skip if the modifier is already applied
next if $consumer->{"_applied_$modifier_type"}{$method_name, $code}++;
$consumer->$add_modifier($method_name => $code);
}
}
}
return;
}
sub _append_roles {
my($self, $role, $metaclass_or_role) = @_;
my $roles = $metaclass_or_role->{roles};
foreach my $r($role, @{$role->get_roles}){
if(!$metaclass_or_role->does_role($r)){
push @{$roles}, $r;
}
}
return;
}
1;
__END__
=head1 NAME
Mouse::Meta::Role::Application - The Mouse role application class
=head1 VERSION
This document describes Mouse version 0.97
=head1 SEE ALSO
L<Moose::Role::Application>
L<Moose::Role::Application::ToClass>
L<Moose::Role::Application::ToRole>
L<Moose::Role::Application::ToInstance>
=cut
|