Version 0.32

[gitmo/MooseX-Storage.git] / lib / MooseX / Storage / Traits / DisableCycleDetection.pm

package MooseX::Storage::Traits::DisableCycleDetection;
use Moose::Role;

our $VERSION   = '0.32';
our $AUTHORITY = 'cpan:STEVAN';

requires 'pack';
requires 'unpack';

around 'pack' => sub {
    my ($orig, $self, %args) = @_;
    $args{engine_traits} ||= [];
    push(@{$args{engine_traits}}, 'DisableCycleDetection');
    $self->$orig(%args);
};

around 'unpack' => sub {
    my ($orig, $self, $data, %args) = @_;
    $args{engine_traits} ||= [];
    push(@{$args{engine_traits}}, 'DisableCycleDetection');
    $self->$orig($data, %args);
};

no Moose::Role;

1;

__END__

=pod

=head1 NAME

MooseX::Storage::Traits::DisableCycleDetection - A custom trait to bypass cycle detection

=head1 SYNOPSIS


    package Double;
    use Moose;
    use MooseX::Storage;
    with Storage( traits => ['DisableCycleDetection'] );

    has 'x' => ( is => 'rw', isa => 'HashRef' );
    has 'y' => ( is => 'rw', isa => 'HashRef' );

    my $ref = {};

    my $double = Double->new( 'x' => $ref, 'y' => $ref );

    $double->pack;

=head1 DESCRIPTION

C<MooseX::Storage> implements a primitive check for circular references.
This check also triggers on simple cases as shown in the Synopsis.
Providing the C<DisableCycleDetection> traits disables checks for any cyclical
references, so if you know what you are doing, you can bypass this check.

This trait is applied to all objects that inherit from it. To use this
on a per-case basis, see C<disable_cycle_check> in L<MooseX::Storage::Basic>.

See the SYNOPSIS for a nice example that can be easily cargo-culted.

=head1 METHODS

=head2 Introspection

=over 4

=item B<meta>

=back

=head1 BUGS

All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.

=head1 AUTHOR

Stevan Little E<lt>stevan.little@iinteractive.comE<gt>

=head1 COPYRIGHT AND LICENSE

Copyright 2007-2008 by Infinity Interactive, Inc.

L<http://www.iinteractive.com>

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

=cut