Add ARM files

[dh-make-perl] / dev / arm / libperl-critic-perl / libperl-critic-perl-1.088 / lib / Perl / Critic / Policy / ControlStructures / ProhibitCascadingIfElse.pm

diff --git a/dev/arm/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/ControlStructures/ProhibitCascadingIfElse.pm b/dev/arm/libperl-critic-perl/libperl-critic-perl-1.088/lib/Perl/Critic/Policy/ControlStructures/ProhibitCascadingIfElse.pm
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+##############################################################################
+#      $URL: http://perlcritic.tigris.org/svn/perlcritic/trunk/Perl-Critic/lib/Perl/Critic/Policy/ControlStructures/ProhibitCascadingIfElse.pm $
+#     $Date: 2008-07-03 10:19:10 -0500 (Thu, 03 Jul 2008) $
+#   $Author: clonezone $
+# $Revision: 2489 $
+##############################################################################
+
+package Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse;
+
+use 5.006001;
+use strict;
+use warnings;
+use Readonly;
+
+use Perl::Critic::Utils qw{ :severities };
+use base 'Perl::Critic::Policy';
+
+our $VERSION = '1.088';
+
+#-----------------------------------------------------------------------------
+
+Readonly::Scalar my $DESC => q{Cascading if-elsif chain};
+Readonly::Scalar my $EXPL => [ 117, 118 ];
+
+#-----------------------------------------------------------------------------
+
+sub supported_parameters {
+    return (
+        {
+            name            => 'max_elsif',
+            description     => 'The maximum number of alternatives that will be allowed.',
+            default_string  => '2',
+            behavior        => 'integer',
+            integer_minimum => 1,
+        },
+    );
+}
+
+sub default_severity { return $SEVERITY_MEDIUM                      }
+sub default_themes   { return qw( core pbp maintenance complexity ) }
+sub applies_to       { return 'PPI::Statement::Compound'            }
+
+#-----------------------------------------------------------------------------
+
+sub violates {
+    my ( $self, $elem, undef ) = @_;
+
+    return if ($elem->type() ne 'if');
+
+    if ( _count_elsifs($elem) > $self->{_max_elsif} ) {
+        return $self->violation( $DESC, $EXPL, $elem );
+    }
+    return;    #ok!
+}
+
+sub _count_elsifs {
+    my $elem = shift;
+    return
+      grep { $_->isa('PPI::Token::Word') && $_ eq 'elsif' } $elem->schildren();
+}
+
+1;
+
+__END__
+
+#-----------------------------------------------------------------------------
+
+=pod
+
+=for stopwords lookup
+
+=head1 NAME
+
+Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse - Don't write long "if-elsif-elsif-elsif-elsif...else" chains.
+
+=head1 AFFILIATION
+
+This Policy is part of the core L<Perl::Critic> distribution.
+
+
+=head1 DESCRIPTION
+
+Long C<if-elsif> chains are hard to digest, especially if they are
+longer than a single page or screen.  If testing for equality, use a
+hash lookup instead.  See L<Switch> for another approach.
+
+  if ($condition1) {         #ok
+      $foo = 1;
+  }
+  elsif ($condition2) {      #ok
+      $foo = 2;
+  }
+  elsif ($condition3) {      #ok
+      $foo = 3;
+  }
+  elsif ($condition4) {      #too many!
+      $foo = 4;
+  }
+  else {                     #ok
+      $foo = $default;
+  }
+
+=head1 CONFIGURATION
+
+This policy can be configured with a maximum number of C<elsif> alternatives
+to allow.  The default is 2.  This can be specified via a C<max_elsif> item in
+the F<.perlcriticrc> file:
+
+ [ControlStructures::ProhibitCascadingIfElse]
+ max_elsif = 3
+
+=head1 AUTHOR
+
+Jeffrey Ryan Thalhammer <thaljef@cpan.org>
+
+=head1 COPYRIGHT
+
+Copyright (c) 2005-2008 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 :