Perl::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 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.