package Perl::Critic::Policy::Subroutines::ProhibitSubroutinePrototypes;

use 5.006001;
use strict;
use warnings;
use Readonly;

use Perl::Critic::Utils qw{ :severities };
use base 'Perl::Critic::Policy';

our $VERSION = '1.121_01';

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

Readonly::Scalar my $DESC => q{Subroutine prototypes used};
Readonly::Scalar my $EXPL => [ 194 ];

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

sub supported_parameters { return ()                    }
sub default_severity     { return $SEVERITY_HIGHEST     }
sub default_themes       { return qw(core pbp bugs certrec )     }
sub applies_to           { return 'PPI::Statement::Sub' }

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

sub violates {
    my ( $self, $elem, undef ) = @_;
    if ( $elem->prototype() ) {
        return $self->violation( $DESC, $EXPL, $elem );
    }
    return;    #ok!
}

1;

__END__

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

=pod

=head1 NAME

Perl::Critic::Policy::Subroutines::ProhibitSubroutinePrototypes - Don't write C<sub my_function (@@) {}>.

=head1 AFFILIATION

This Policy is part of the core L<Perl::Critic|Perl::Critic>
distribution.


=head1 DESCRIPTION

Contrary to common belief, subroutine prototypes do not enable
compile-time checks for proper arguments.  Don't use them.


=head1 CONFIGURATION

This Policy is not configurable except for the standard options.


=head1 AUTHOR

Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

=head1 COPYRIGHT

Copyright (c) 2005-2011 Imaginative Software Systems.  All rights reserved.

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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