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|
package Class::MOP::Module;
our $VERSION = '2.4000';
use strict;
use warnings;
use parent 'Class::MOP::Package';
sub _new {
my $class = shift;
return Class::MOP::Class->initialize($class)->new_object(@_)
if $class ne __PACKAGE__;
my $params = @_ == 1 ? $_[0] : {@_};
return bless {
# Need to quote package to avoid a problem with PPI mis-parsing this
# as a package statement.
# from Class::MOP::Package
'package' => $params->{package},
namespace => \undef,
# attributes
version => \undef,
authority => \undef
} => $class;
}
sub version {
my $self = shift;
${$self->get_or_add_package_symbol('$VERSION')};
}
sub authority {
my $self = shift;
${$self->get_or_add_package_symbol('$AUTHORITY')};
}
sub identifier {
my $self = shift;
join '-' => (
$self->name,
($self->version || ()),
($self->authority || ()),
);
}
sub create {
my $class = shift;
my @args = @_;
unshift @args, 'package' if @args % 2 == 1;
my %options = @args;
my $package = delete $options{package};
my $version = delete $options{version};
my $authority = delete $options{authority};
my $meta = $class->SUPER::create($package => %options);
$meta->_instantiate_module($version, $authority);
return $meta;
}
sub _anon_package_prefix { 'Class::MOP::Module::__ANON__::SERIAL::' }
sub _anon_cache_key {
my $class = shift;
my %options = @_;
$class->_throw_exception( PackagesAndModulesAreNotCachable => class_name => $class,
params => \%options,
is_module => 1
);
}
sub _instantiate_module {
my($self, $version, $authority) = @_;
my $package_name = $self->name;
$self->add_package_symbol('$VERSION' => $version)
if defined $version;
$self->add_package_symbol('$AUTHORITY' => $authority)
if defined $authority;
return;
}
1;
# ABSTRACT: Module Meta Object
__END__
=pod
=encoding UTF-8
=head1 NAME
Class::MOP::Module - Module Meta Object
=head1 VERSION
version 2.4000
=head1 DESCRIPTION
A module is essentially a L<Class::MOP::Package> with metadata, in our
case the version and authority.
=head1 INHERITANCE
B<Class::MOP::Module> is a subclass of L<Class::MOP::Package>.
=head1 METHODS
=head2 Class::MOP::Module->create($package, %options)
Overrides C<create> from L<Class::MOP::Package> to provide these additional
options:
=over 4
=item C<version>
A version number, to be installed in the C<$VERSION> package global variable.
=item C<authority>
An authority, to be installed in the C<$AUTHORITY> package global variable.
This is a legacy field and its use is not recommended.
=back
=head2 $metamodule->version
This is a read-only attribute which returns the C<$VERSION> of the
package, if one exists.
=head2 $metamodule->authority
This is a read-only attribute which returns the C<$AUTHORITY> of the
package, if one exists.
=head2 $metamodule->identifier
This constructs a string which combines the name, version and
authority.
=head2 Class::MOP::Module->meta
This will return a L<Class::MOP::Class> instance for this class.
=head1 AUTHORS
=over 4
=item *
Stevan Little <stevan@cpan.org>
=item *
Dave Rolsky <autarch@urth.org>
=item *
Jesse Luehrs <doy@cpan.org>
=item *
Shawn M Moore <sartak@cpan.org>
=item *
יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
=item *
Karen Etheridge <ether@cpan.org>
=item *
Florian Ragwitz <rafl@debian.org>
=item *
Hans Dieter Pearcey <hdp@cpan.org>
=item *
Chris Prather <chris@prather.org>
=item *
Matt S Trout <mstrout@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2006 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
|
