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NAMEPerl::Critic::Policy::ControlStructures::ProhibitUnlessBlocks - Write "if(! $condition)" instead of "unless($condition)". AFFILIATIONThis Policy is part of the core Perl::Critic distribution. DESCRIPTIONConway discourages using "unless" because it leads to double-negatives that are hard to understand. Instead, reverse the logic and use "if". unless($condition) { do_something() } #not ok unless(! $no_flag) { do_something() } #really bad if( ! $condition) { do_something() } #ok This Policy only covers the block-form of "unless". For the postfix variety, see "ProhibitPostfixControls". CONFIGURATIONThis Policy is not configurable except for the standard options. SEE ALSOPerl::Critic::Policy::ControlStructures::ProhibitPostfixControls AUTHORJeffrey Ryan Thalhammer <jeff@imaginative-software.com> COPYRIGHTCopyright (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.
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