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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://en.wikipedia.org/wiki/Cyclomatic_complexity for some discussion about the McCabe number and other complexity metrics.
INTERFACE SUPPORT
This is considered to be a public module. Any changes to its interface will go through a deprecation cycle.
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 <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.
