NAME

Class::MOP::Immutable - A class to transform Class::MOP::Class metaclasses

SYNOPSIS

use Class::MOP::Immutable;

my $immutable_metaclass = Class::MOP::Immutable->new($metaclass, {
    read_only   => [qw/superclasses/],
    cannot_call => [qw/
        add_method
        alias_method
        remove_method
        add_attribute
        remove_attribute
        add_package_symbol
        remove_package_symbol
    /],
    memoize     => {
        class_precedence_list             => 'ARRAY',
        compute_all_applicable_attributes => 'ARRAY',
        get_meta_instance                 => 'SCALAR',
        get_method_map                    => 'SCALAR',
    }
});

$immutable_metaclass->make_metaclass_immutable(@_)

DESCRIPTION

This is basically a module for applying a transformation on a given metaclass. Current features include making methods read-only, making methods un-callable and memoizing methods (in a type specific way too).

This module is not for the feint of heart, it does some whacky things to the metaclass in order to make it immutable. If you are just curious, I suggest you turn back now, there is nothing to see here.

METHODS

new ($metaclass, \%options)

Given a $metaclass and a set of %options this module will prepare an immutable version of the $metaclass, which can then be applied to the $metaclass using the make_metaclass_immutable method.

options

Returns the options HASH set in new.

metaclass

Returns the metaclass set in new.

immutable_metaclass

Returns the immutable metaclass created within new.

create_immutable_metaclass

This will create the immutable version of the $metaclass, but will not actually change the original metaclass.

create_methods_for_immutable_metaclass

This will create all the methods for the immutable metaclass based on the %options passed into new.

make_metaclass_immutable (%options)

This will actually change the $metaclass into the immutable version.

make_metaclass_mutable (%options)

This will change the $metaclass into the mutable version by reversing the immutable process. %options should be the same options that were given to make_metaclass_immutable.

AUTHORS

Stevan Little <stevan@iinteractive.com>

COPYRIGHT AND LICENSE

Copyright 2006-2008 by Infinity Interactive, Inc.

http://www.iinteractive.com

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.