Perl::Critic::Utils::McCabe3pm

Overview

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.