CentOS 7.0 - man page for perl::critic::policy::variables::prohibitlocalvars (centos section 3)
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Perl::Critic::Policy::Variables::ProhibitLocalVars - Use "my" instead of "local", except
when you have to.
This Policy is part of the core Perl::Critic distribution.
Since Perl 5, there are very few reasons to declare "local" variables. The most common
exceptions are Perl's magical global variables. If you do need to modify one of those
global variables, you should localize it first. You should also use the English module to
give those variables more meaningful names.
local $foo; #not ok
my $foo; #ok
use English qw(-no_match_vars);
local $INPUT_RECORD_SEPARATOR #ok
local $RS #ok
local $/; #not ok
This Policy is not configurable except for the standard options.
If an external module uses package variables as its interface, then using "local" is
actually a pretty sensible thing to do. So Perl::Critic will not complain if you
"local"-ize variables with a fully qualified name such as $Some::Package::foo. However,
if you're in a position to dictate the module's interface, I strongly suggest using
accessor methods instead.
Jeffrey Ryan Thalhammer <email@example.com>
Copyright (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.
perl v5.16.3 Perl::Critic::Policy::Variables::ProhibitLocalVars(3)
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