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ELLIOTJS / Perl-Critic-1.097_002 / lib / Perl / Critic / Policy / ValuesAndExpressions / ProhibitConstantPragma.pm 

            

              
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##############################################################################
#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/distributions/Perl-Critic/lib/Perl/Critic/Policy/ValuesAndExpressions/ProhibitConstantPragma.pm $
#     $Date: 2009-03-01 17:40:39 -0600 (Sun, 01 Mar 2009) $
#   $Author: clonezone $
# $Revision: 3205 $
##############################################################################
package Perl::Critic::Policy::ValuesAndExpressions::ProhibitConstantPragma;
use 5.006001;
use strict;
use warnings;
use Readonly;
use Perl::Critic::Utils qw{ :severities };
use base 'Perl::Critic::Policy';
our $VERSION = '1.097_002';
#-----------------------------------------------------------------------------
Readonly::Scalar my $DESC => q{Pragma "constant" used};
Readonly::Scalar my $EXPL => [ 55 ];
#-----------------------------------------------------------------------------
sub supported_parameters { return ()                        }
sub default_severity     { return $SEVERITY_HIGH            }
sub default_themes       { return qw( core bugs pbp )       }
sub applies_to           { return 'PPI::Statement::Include' }
#-----------------------------------------------------------------------------
sub violates {
    my ( $self, $elem, undef ) = @_;
    if ( $elem->type() eq 'use' && $elem->pragma() eq 'constant' ) {
        return $self->violation( $DESC, $EXPL, $elem );
    }
    return;    #ok!
}
1;
__END__
#-----------------------------------------------------------------------------
=pod
=head1 NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitConstantPragma - Don't C<< use constant FOO => 15 >>.
=head1 AFFILIATION
This Policy is part of the core L<Perl::Critic|Perl::Critic> distribution.
=head1 DESCRIPTION
Named constants are a good thing.  But don't use the C<constant>
pragma because barewords don't interpolate.  Instead use the
L<Readonly|Readonly> module.
  use constant FOOBAR => 42;  #not ok
  use Readonly;
  Readonly my $FOOBAR => 42;  #ok
  Readonly::Scalar my $FOOBAR => 42;  #ok
=head1 CONFIGURATION
This Policy is not configurable except for the standard options.
=head1 AUTHOR
Jeffrey Ryan Thalhammer <thaljef@cpan.org>
=head1 COPYRIGHT
Copyright (c) 2005-2009 Jeffrey Ryan Thalhammer.  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
# Local Variables:
#   mode: cperl
#   cperl-indent-level: 4
#   fill-column: 78
#   indent-tabs-mode: nil
#   c-indentation-style: bsd
# End:
# ex: set ts=8 sts=4 sw=4 tw=78 ft=perl expandtab shiftround :