Perl::Critic::Utils::McCabe(3)

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
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.