PerlPerl::Critic::Policy::ValuesAndExpressions::ProhibitMismatchedOperators(3)NAMEPerl::Critic::Policy::ValuesAndExpressions::ProhibitMismatchedOperators
- Don't mix numeric operators with string operands, or vice-versa.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Using the wrong operator type for a value can obscure coding intent and
possibly lead to subtle errors. An example of this is mixing a string
equality operator with a numeric value, or vice-versa.
if ($foo == 'bar') {} #not ok
if ($foo eq 'bar') {} #ok
if ($foo eq 123) {} #not ok
if ($foo == 123) {} #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
NOTES
If warnings are enabled, the Perl interpreter usually warns you about
using mismatched operators at run-time. This Policy does essentially
the same thing, but at author-time. That way, you can find out about
them sooner.
AUTHOR
Peter Guzis <pguzis@cpan.org>
COPYRIGHT
Copyright (c) 2006-2011 Peter Guzis. 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.
perlPerl::Critic::Policy::ValuesAndExpressions::ProhibitMismatchedOperators(3)
