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package Perl::Critic::Policy::ValuesAndExpressions::ProhibitConstantPragma;
use 5.010001;
use strict;
use warnings;
use Readonly;
use Perl::Critic::Utils qw{ :severities };
use parent 'Perl::Critic::Policy';
our $VERSION = '1.156';
#-----------------------------------------------------------------------------
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 <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
# 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 :
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