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Manual Reference Pages  -  PERL::CRITIC::POLICY::MODULES::PROHIBITAUTOMATICEXPORTATION (3)

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NAME

Perl::Critic::Policy::Modules::ProhibitAutomaticExportation - Export symbols via "@EXPORT_OK" or "%EXPORT_TAGS" instead of "@EXPORT".

CONTENTS

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 Exporter import;
    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.

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perl v5.20.3 PERL::CRITIC::POLICY::MODULES::PROHIBITAUTOMATICEXPORTATION (3) 2016-04-03

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