perl::critic::policy::modules::prohibitautomaticexportation(3) [centos man page]
Perl::Critic::Policy::Modules::ProhibitAutomaticExportatUser3Contributed Perl DocumePerl::Critic::Policy::Modules::ProhibitAutomaticExportation(3)NAME
Perl::Critic::Policy::Modules::ProhibitAutomaticExportation - Export symbols via "@EXPORT_OK" or "%EXPORT_TAGS" instead of "@EXPORT".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
When using Exporter, symbols placed in the @EXPORT variable are automatically exported into the caller's namespace. Although convenient,
this practice is not polite, and may cause serious problems if the caller declares the same symbols. The best practice is to place your
symbols in @EXPORT_OK or %EXPORT_TAGS and let the caller choose exactly which symbols to export.
package Foo;
use base qw(Exporter);
our @EXPORT = qw(foo $bar @baz); # not ok
our @EXPORT_OK = qw(foo $bar @baz); # ok
our %EXPORT_TAGS = ( all => [ qw(foo $bar @baz) ] ); # ok
CONFIGURATION
This Policy is not configurable except for the standard options.
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3 2014-06-09 Perl::Critic::Policy::Modules::ProhibitAutomaticExportation(3)
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Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixeUserlContribPerl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators(3pm)NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators - Write " !$foo && $bar || $baz " instead of " not $foo && $bar
or $baz".
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Conway advises against combining the low-precedence booleans ( "and or not" ) with the high-precedence boolean operators ( "&& || !" ) in
the same expression. Unless you fully understand the differences between the high and low-precedence operators, it is easy to misinterpret
expressions that use both. And even if you do understand them, it is not always clear if the author actually intended it.
next if not $foo || $bar; #not ok
next if !$foo || $bar; #ok
next if !( $foo || $bar ); #ok
CONFIGURATION
This Policy is not configurable except for the standard options.
AUTHOR
Jeffrey Ryan Thalhammer <jeff@imaginative-software.com>
COPYRIGHT
Copyright (c) 2005-2011 Imaginative Software Systems. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.14.2Perl::Critic::Policy::ValuesAndExpressions::ProhibitMixedBooleanOperators(3pm)
Hello,
I am looking for faulty X6990A, X7000A, X7009A, X7064A, X7310A CPU Modules.
The background is that I have recently got some non-working X7009A with various errors, I was able to repair some by swapping out CPUs but still have 3 more modules which are defenately "cooked".
I would... (0 Replies)
Hi,
Can someone please clarify how we are able to use both IO and GLOB symbols of a package variable interchangeably?
Please consider the following code:
open(FH,"myfile") || die "Unable to open file myfile:$@";
my $glob_var = *main::FH{GLOB};
my $io_var = *main::FH{IO};
print $glob_var... (0 Replies)
hi
i am new in unix.i have installed linux in my pc,but i want to practice and be expatise in hp ux.but i have no hp server for do it.how could i practice hp ux?please help and give suggestion. (1 Reply)