Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse(3)
NAME
Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse -
Don't write long "if-elsif-elsif-elsif-elsif...else" chains.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Long "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. If you're using perl 5.10 or later, use
"given"/"when".
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;
}
CONFIGURATION
This policy can be configured with a maximum number of "elsif"
alternatives to allow. The default is 2. This can be specified via a
"max_elsif" item in the .perlcriticrc file:
[ControlStructures::ProhibitCascadingIfElse]
max_elsif = 3
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
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.
perl v5.28.Perl::Critic::Policy::ControlStructures::ProhibitCascadingIfElse(3)
perl-critic 1.134.0 - Generated Mon Jun 3 08:15:49 CDT 2019