NAME

Perl::Critic::Utils::McCabe - Functions that calculate the McCabe score of source code.

DESCRIPTION

Provides approximations of McCabe scores. The McCabe score of a set of code describes the number of possible paths through it. The functions here approximate the McCabe score by summing the number of conditional statements and operators within a set of code. See http://www.sei.cmu.edu/str/descriptions/cyclomatic_body.html for some discussion about the McCabe number and other complexity metrics.

IMPORTABLE SUBS

calculate_mccabe_of_sub( $sub ): Calculates an approximation of the McCabe number of the code in a PPI::Statement::Sub.
calculate_mccabe_of_main( $doc ): Calculates an approximation of the McCabe number of all the code in a PPI::Statement::Document that is not contained in a subroutine.

AUTHOR

Jeffrey Ryan Thalhammer <thaljef@cpan.org>

COPYRIGHT

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.