/usr/lib/perl5/Class/MOP/Mixin/HasMethods.pm is in libmoose-perl 2.0401-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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BEGIN {
$Class::MOP::Mixin::HasMethods::AUTHORITY = 'cpan:STEVAN';
}
{
$Class::MOP::Mixin::HasMethods::VERSION = '2.0401';
}
use strict;
use warnings;
use Class::MOP::Method::Meta;
use Scalar::Util 'blessed';
use Carp 'confess';
use Sub::Name 'subname';
use base 'Class::MOP::Mixin';
sub _meta_method_class { 'Class::MOP::Method::Meta' }
sub _add_meta_method {
my $self = shift;
my ($name) = @_;
my $existing_method = $self->can('find_method_by_name')
? $self->find_method_by_name($name)
: $self->get_method($name);
return if $existing_method
&& $existing_method->isa($self->_meta_method_class);
$self->add_method(
$name => $self->_meta_method_class->wrap(
name => $name,
package_name => $self->name,
associated_metaclass => $self,
)
);
}
sub wrap_method_body {
my ( $self, %args ) = @_;
( 'CODE' eq ref $args{body} )
|| confess "Your code block must be a CODE reference";
$self->method_metaclass->wrap(
package_name => $self->name,
%args,
);
}
sub add_method {
my ( $self, $method_name, $method ) = @_;
( defined $method_name && length $method_name )
|| confess "You must define a method name";
my $package_name = $self->name;
my $body;
if ( blessed($method) ) {
$body = $method->body;
if ( $method->package_name ne $package_name ) {
$method = $method->clone(
package_name => $package_name,
name => $method_name,
);
}
$method->attach_to_class($self);
}
else {
# If a raw code reference is supplied, its method object is not created.
# The method object won't be created until required.
$body = $method;
}
$self->_method_map->{$method_name} = $method;
my ($current_package, $current_name) = Class::MOP::get_code_info($body);
subname($package_name . '::' . $method_name, $body)
unless defined $current_name && $current_name !~ /^__ANON__/;
$self->add_package_symbol("&$method_name", $body);
# we added the method to the method map too, so it's still valid
$self->update_package_cache_flag;
}
sub _code_is_mine {
my ( $self, $code ) = @_;
my ( $code_package, $code_name ) = Class::MOP::get_code_info($code);
return ( $code_package && $code_package eq $self->name )
|| ( $code_package eq 'constant' && $code_name eq '__ANON__' );
}
sub has_method {
my ( $self, $method_name ) = @_;
( defined $method_name && length $method_name )
|| confess "You must define a method name";
my $method = $self->_get_maybe_raw_method($method_name)
or return;
return defined($self->_method_map->{$method_name} = $method);
}
sub get_method {
my ( $self, $method_name ) = @_;
( defined $method_name && length $method_name )
|| confess "You must define a method name";
my $method = $self->_get_maybe_raw_method($method_name)
or return;
return $method if blessed $method;
return $self->_method_map->{$method_name} = $self->wrap_method_body(
body => $method,
name => $method_name,
associated_metaclass => $self,
);
}
sub _get_maybe_raw_method {
my ( $self, $method_name ) = @_;
my $map_entry = $self->_method_map->{$method_name};
return $map_entry if defined $map_entry;
my $code = $self->get_package_symbol("&$method_name");
return unless $code && $self->_code_is_mine($code);
return $code;
}
sub remove_method {
my ( $self, $method_name ) = @_;
( defined $method_name && length $method_name )
|| confess "You must define a method name";
my $removed_method = delete $self->_method_map->{$method_name};
$self->remove_package_symbol("&$method_name");
$removed_method->detach_from_class
if blessed($removed_method);
# still valid, since we just removed the method from the map
$self->update_package_cache_flag;
return $removed_method;
}
sub get_method_list {
my $self = shift;
return keys %{ $self->_full_method_map };
}
sub _get_local_methods {
my $self = shift;
return values %{ $self->_full_method_map };
}
sub _restore_metamethods_from {
my $self = shift;
my ($old_meta) = @_;
for my $method ($old_meta->_get_local_methods) {
$method->_make_compatible_with($self->method_metaclass);
$self->add_method($method->name => $method);
}
}
sub reset_package_cache_flag { (shift)->{'_package_cache_flag'} = undef }
sub update_package_cache_flag {
my $self = shift;
# NOTE:
# we can manually update the cache number
# since we are actually adding the method
# to our cache as well. This avoids us
# having to regenerate the method_map.
# - SL
$self->{'_package_cache_flag'} = Class::MOP::check_package_cache_flag($self->name);
}
sub _full_method_map {
my $self = shift;
my $pkg_gen = Class::MOP::check_package_cache_flag($self->name);
if (($self->{_package_cache_flag_full} || -1) != $pkg_gen) {
# forcibly reify all method map entries
$self->get_method($_)
for $self->list_all_package_symbols('CODE');
$self->{_package_cache_flag_full} = $pkg_gen;
}
return $self->_method_map;
}
1;
# ABSTRACT: Methods for metaclasses which have methods
=pod
=head1 NAME
Class::MOP::Mixin::HasMethods - Methods for metaclasses which have methods
=head1 VERSION
version 2.0401
=head1 DESCRIPTION
This class implements methods for metaclasses which have methods
(L<Class::MOP::Package> and L<Moose::Meta::Role>). See L<Class::MOP::Package>
for API details.
=head1 AUTHOR
Moose is maintained by the Moose Cabal, along with the help of many contributors. See L<Moose/CABAL> and L<Moose/CONTRIBUTORS> for details.
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2011 by Infinity Interactive, Inc..
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
__END__
|