NAME

Perl::Critic::Policy::Mardem::ProhibitConditionComplexity

DESCRIPTION

This Policy approximates the McCabe score within a coditional block "eg if(...)".

See http://en.wikipedia.org/wiki/Cyclomatic_complexity

It should help to find complex conditions, which should be extracted into subs, to be more testable.

eg. from

  if( $a && $b || $c > 20 ) { ... }

to

  if( _some_test ($a, $b, $c) ) { .. }

  sub _some_test {
    my ($a, $b, $c ) = @_;

    return  $a && $b || $c > 20;
  }

CONFIGURATION

The maximum acceptable McCabe can be set with the max_mccabe configuration item. Any block with a McCabe score higher than this number will generate a policy violation. The default is 2.

An example section for a .perlcriticrc:

  [Mardem::ProhibitConditionComplexity]
  max_mccabe = 1

AFFILIATION

This policy is part of Perl::Critic::Mardem.

AUTHOR

Markus Demml, mardem@cpan.com

LICENSE AND COPYRIGHT

Copyright (c) 2022, Markus Demml

This library is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. The full text of this license can be found in the LICENSE file included with this module.