package Perl::Critic::PolicyParameter::Behavior::Boolean;

use 5.010001;
use strict;
use warnings;
use Perl::Critic::Utils;

use parent qw{ Perl::Critic::PolicyParameter::Behavior };

our $VERSION = '1.156';

#-----------------------------------------------------------------------------

sub _parse {
    my ($policy, $parameter, $config_string) = @_;

    my $value_string = $config_string // $parameter->get_default_string();

    $policy->__set_parameter_value($parameter, $value_string ? $TRUE : $FALSE);

    return;
}

#-----------------------------------------------------------------------------

sub initialize_parameter {
    my (undef, $parameter, undef) = @_;

    $parameter->_set_parser(\&_parse);

    return;
}

#-----------------------------------------------------------------------------

1;

__END__

#-----------------------------------------------------------------------------

=pod

=for stopwords

=head1 NAME

Perl::Critic::PolicyParameter::Behavior::Boolean - Actions appropriate for a boolean parameter.


=head1 DESCRIPTION

Provides a standard set of functionality for a boolean
L<Perl::Critic::PolicyParameter|Perl::Critic::PolicyParameter> so that
the developer of a policy does not have to provide it her/himself.

NOTE: Do not instantiate this class.  Use the singleton instance held
onto by
L<Perl::Critic::PolicyParameter|Perl::Critic::PolicyParameter>.


=head1 INTERFACE SUPPORT

This is considered to be a non-public class.  Its interface is subject
to change without notice.


=head1 METHODS

=over

=item C<initialize_parameter( $parameter, $specification )>

Plug in the functionality this behavior provides into the parameter.
At present, this behavior isn't customizable by the specification.


=back


=head1 AUTHOR

Elliot Shank <perl@galumph.com>


=head1 COPYRIGHT

Copyright (c) 2006-2011 Elliot Shank.

This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.  The full text of this license
can be found in the LICENSE file included with this module.

=cut

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