perl::critic::policy::variables::prohibitunusedvariables(3) [centos man page]
Perl::Critic::Policy::Variables::ProhibitUnusedVariablesUser Contributed Perl DocumentaPerl::Critic::Policy::Variables::ProhibitUnusedVariables(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 v5.16.3 2014-06-09 Perl::Critic::Policy::Variables::ProhibitUnusedVariables(3)
Check Out this Related Man Page
Perl::Critic::Policy::Variables::ProhibitPerl4PackageNamUserpContributed Perl DocumPerl::Critic::Policy::Variables::ProhibitPerl4PackageNames(3pm)NAME
Perl::Critic::Policy::Variables::ProhibitPerl4PackageNames - Use double colon (::) to separate package name components instead of single
quotes (').
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Perl 5 kept single quotes ("'") as package component separators in order to remain backward compatible with prior "perl"s, but advocated
using double colon ("::") instead. In the more than a decade since Perl 5, double colons have been overwhelmingly adopted and most people
are not even aware that the single quote can be used in this manner. So, unless you're trying to obfuscate your code, don't use them.
package Foo::Bar::Baz; #ok
package Foo'Bar'Baz; #not ok
CONFIGURATION
This Policy is not configurable except for the standard options.
SEE ALSO
perlmod
AUTHOR
Elliot Shank "<perl@galumph.com>"
COPYRIGHT
Copyright (c) 2007-2011 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 v5.14.2 2012-06-07 Perl::Critic::Policy::Variables::ProhibitPerl4PackageNames(3pm)
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if ]
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Policy Endorsement 4
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