Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
Perl::Critic::PolicPerUserrContributedyPerlrDocumentationbitUnusedVariables(3)

NAME
       Perl::Critic::Policy::Variables::ProhibitUnusedVariables	- Don't	ask
       for storage you don't need.

AFFILIATION
       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION
       Unused variables	clutter	code and require the reader to do mental
       bookkeeping to figure out if the	variable is actually used or not.

       At present, this	Policy is very limited in order	to ensure that there
       aren't any false	positives.  Hopefully, this will become	more
       sophisticated soon.

       Right now, this only looks for simply declared, uninitialized lexical
       variables.

	   my $x;	   # not ok, assuming no other appearances.
	   my @y = ();	   # ok, not handled yet.
	   our $z;	   # ok, global.
	   local $w;	   # ok, global.

       This module is very dumb: it does no scoping detection, i.e. if the
       same variable name is used in two different locations, even if they
       aren't the same variable, this Policy won't complain.

       Have to start somewhere.

CONFIGURATION
       This Policy is not configurable except for the standard options.

AUTHOR
       Elliot Shank "<perl@galumph.com>"

COPYRIGHT
       Copyright (c) 2008-2011 Elliot Shank.

       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.

perl v5.24.1	   Perl::Critic::Policy::Variables::ProhibitUnusedVariables(3)

NAME | AFFILIATION | DESCRIPTION | CONFIGURATION | AUTHOR | COPYRIGHT

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=Perl::Critic::Policy::Variables::ProhibitUnusedVariables&sektion=3&manpath=FreeBSD+12.1-RELEASE+and+Ports>

home | help