Rechercher une page de manuel
Perl::Critic::Policy::BuiltinFunctions::ProhibitVoidGrep.3pm
Langue: en
Version: 2010-09-08 (fedora - 01/12/10)
Section: 3 (Bibliothèques de fonctions)
NAME
Perl::Critic::Policy::BuiltinFunctions::ProhibitVoidGrep - Don't use "grep" in void contexts.AFFILIATION
This Policy is part of the core Perl::Critic distribution.DESCRIPTION
"map" and "grep" are intended to be pure functions, not mutators. If you want to iterate with side-effects, then you should use a proper "for" or "foreach" loop.grep{ print frobulate($_) } @list; #not ok print map{ frobulate($_) } @list; #ok grep{ $_ = lc $_ } @list; #not ok for( @list ){ $_ = lc $_ }; #ok map{ push @frobbed, frobulate($_) } @list; #not ok @frobbed = map { frobulate($_) } @list; #ok
CONFIGURATION
This Policy is not configurable except for the standard options.AUTHOR
Jeffrey Ryan Thalhammer <thaljef@cpan.org>COPYRIGHT
Copyright (c) 2005-2009 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.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre