perl::critic::policy::testinganddebugging::requireusewarnings(3) [centos man page]

Perl::Critic::Policy::TestingAndDebugging::RequireUseWarUsersContributed Perl DocuPerl::Critic::Policy::TestingAndDebugging::RequireUseWarnings(3)

NAME

       Perl::Critic::Policy::TestingAndDebugging::RequireUseWarnings - Always "use warnings".

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       Using warnings, and paying attention to what they say, is probably the single most effective way to improve the quality of your code.  This
       policy requires that the 'use warnings' statement must come before any other statements except "package", "require", and other "use"
       statements.  Thus, all the code in the entire package will be affected.

       There are special exemptions for Moose, Moose::Role, and Moose::Util::TypeConstraints because they enforces warnings; e.g.  'use Moose' is
       treated as equivalent to 'use warnings'.

       This policy will not complain if the file explicitly states that it is compatible with a version of perl prior to 5.6 via an include
       statement, e.g. by having "require 5.005" in it.

       The maximum number of violations per document for this policy defaults to 1.

CONFIGURATION

       If you take make use of things like Moose::Exporter, you can create your own modules that import the warnings pragma into the code that is
       "use"ing them.  There is an option to add to the default set of pragmata and modules in your .perlcriticrc: "equivalent_modules".

	   [TestingAndDebugging::RequireUseWarnings]
	   equivalent_modules = MooseX::My::Sugar

BUGS

       Needs to check for -w on the shebang line.

SEE ALSO

       Perl::Critic::Policy::TestingAndDebugging::ProhibitNoWarnings

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       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							    2014-06-09	  Perl::Critic::Policy::TestingAndDebugging::RequireUseWarnings(3)

Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEUser3Contributed Perl DocuPerl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3pm)

NAME

       Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval - Write "eval { my $foo; bar($foo) }" instead of "eval "my $foo; bar($foo);"".

AFFILIATION

       This Policy is part of the core Perl::Critic distribution.

DESCRIPTION

       The string form of "eval" is recompiled every time it is executed, whereas the block form is only compiled once.  Also, the string form
       doesn't give compile-time warnings.

	   eval "print $foo";	     # not ok
	   eval {print $foo};	     # ok

CONFIGURATION

       There is an "allow_includes" boolean option for this Policy.  If set, then strings that look like they only include a single "use" or
       "require" statement (with the possible following statement that consists of a single number) are allowed.  With this option set, the
       following are flagged as indicated:

	   eval 'use Foo';	       # ok
	   eval 'require Foo';	       # ok
	   eval "use $thingy;";        # ok
	   eval "require $thingy;";    # ok
	   eval "use $thingy; 1;";     # ok
	   eval "require $thingy; 1;"; # ok

	   eval 'use Foo; blah;';      # still not ok
	   eval 'require Foo; 2; 1;';  # still not ok
	   eval 'use $thingy;';        # still not ok
	   eval 'no Foo';	       # still not ok

       If you don't understand why the number is allowed, see Perl::Critic::Policy::ErrorHandling::RequireCheckingReturnValueOfEval.

       This option inspired by Ricardo SIGNES' Perl::Critic::Policy::Lax::ProhibitStringyEval::ExceptForRequire.

SEE ALSO

       Perl::Critic::Policy::ControlStrucutres::RequireBlockGrep

       Perl::Critic::Policy::ControlStrucutres::RequireBlockMap

AUTHOR

       Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>

COPYRIGHT

       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 v5.14.2							    2012-06-07	  Perl::Critic::Policy::BuiltinFunctions::ProhibitStringyEval(3pm)