NAME

MooseX::Clone - Fine grained cloning support for Moose objects.

SYNOPSIS

    package Bar;
    use Moose;

        with qw(MooseX::Clone);

    has foo => (
        isa => "Foo",
        traits => [qw(Clone)], # this attribute will be recursively cloned
    );

    package Foo;
    use Moose;

    # this API is used/provided by MooseX::Clone
    sub clone {
        my ( $self, %params ) = @_;

        # ...
    }


    # used like this:

    my $bar = Bar->new( foo => Foo->new );

    my $copy = $bar->clone( foo => [ qw(Args for Foo::clone) ] );

DESCRIPTION

Out of the box Moose only provides very barebones cloning support in order to maximize flexibility.

This role provides a clone method that makes use of the low level cloning support already in Moose and adds selective deep cloning based on introspection on top of that. Attributes marked for

METHODS

clone %params

Returns a clone of the object.

All attributes which do the MooseX::Clone::Meta::Attribute::Trait::Clone role will handle cloning of that attribute. All other fields are plainly copied over, just like in "clone_object" in Class::MOP::Class.

Attributes whose init_arg is in %params and who do the Clone trait will get that argument passed to the clone method (dereferenced). If the attribute does not self-clone then the param is used normally by "clone_object" in Class::MOP::Class, that is it will simply shadow the previous value, and does not have to be an array or hash reference.

TODO

Refactor to work in term of a metaclass trait so that <meta-clone_object>> will still do the right thing.

THANKS

clkao made the food required to write this module

VERSION CONTROL

http://code2.0beta.co.uk/moose/svn/. Ask on #moose for commit bits.

AUTHOR

Yuval Kogman <nothingmuch@woobling.org>

COPYRIGHT

        Copyright (c) 2008 Yuval Kogman. All rights reserved
        This program is free software; you can redistribute
        it and/or modify it under the same terms as Perl itself.