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package Moose::Meta::Attribute::Native::Trait::Counter; our $VERSION = '2.2203'; use Moose::Role; with 'Moose::Meta::Attribute::Native::Trait'; sub _helper_type { 'Num' } sub _root_types { 'Num', 'Int' } no Moose::Role; 1; # ABSTRACT: Helper trait for Int attributes which represent counters __END__ =pod =encoding UTF-8 =head1 NAME Moose::Meta::Attribute::Native::Trait::Counter - Helper trait for Int attributes which represent counters =head1 VERSION version 2.2203 =head1 SYNOPSIS package MyHomePage; use Moose; has 'counter' => ( traits => ['Counter'], is => 'ro', isa => 'Num', default => 0, handles => { inc_counter => 'inc', dec_counter => 'dec', reset_counter => 'reset', }, ); my $page = MyHomePage->new(); $page->inc_counter; # same as $page->counter( $page->counter + 1 ); $page->dec_counter; # same as $page->counter( $page->counter - 1 ); my $count_by_twos = 2; $page->inc_counter($count_by_twos); =head1 DESCRIPTION This trait provides native delegation methods for counters. A counter can be any sort of number (integer or not). The delegation methods allow you to increment, decrement, or reset the value. =head1 DEFAULT TYPE If you don't provide an C<isa> value for your attribute, it will default to C<Num>. =head1 PROVIDED METHODS =over 4 =item * B<set($value)> Sets the counter to the specified value and returns the new value. This method requires a single argument. =item * B<inc> =item * B<inc($arg)> Increases the attribute value by the amount of the argument, or by 1 if no argument is given. This method returns the new value. This method accepts a single argument. =item * B<dec> =item * B<dec($arg)> Decreases the attribute value by the amount of the argument, or by 1 if no argument is given. This method returns the new value. This method accepts a single argument. =item * B<reset> Resets the value stored in this slot to its default value, and returns the new value. =back =head1 BUGS See L<Moose/BUGS> for details on reporting bugs. =head1 AUTHORS =over 4 =item * Stevan Little <stevan@cpan.org> =item * Dave Rolsky <autarch@urth.org> =item * Jesse Luehrs <doy@cpan.org> =item * Shawn M Moore <sartak@cpan.org> =item * יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org> =item * Karen Etheridge <ether@cpan.org> =item * Florian Ragwitz <rafl@debian.org> =item * Hans Dieter Pearcey <hdp@cpan.org> =item * Chris Prather <chris@prather.org> =item * Matt S Trout <mstrout@cpan.org> =back =head1 COPYRIGHT AND LICENSE This software is copyright (c) 2006 by Infinity Interactive, Inc. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =cut