Commit | Line | Data |
22d869ff |
1 | |
2 | package MooseX::AttributeHelpers::Counter; |
3 | use Moose; |
88aaf2bd |
4 | use Moose::Util::TypeConstraints; |
22d869ff |
5 | |
6 | our $VERSION = '0.01'; |
7 | our $AUTHORITY = 'cpan:STEVAN'; |
8 | |
d26633fc |
9 | extends 'MooseX::AttributeHelpers::Base'; |
10 | |
8ba40fb0 |
11 | sub helper_type { 'Num' } |
12 | |
d26633fc |
13 | has '+method_constructors' => ( |
14 | default => sub { |
15 | return +{ |
16 | inc => sub { |
17 | my $attr = shift; |
18 | return sub { $attr->set_value($_[0], $attr->get_value($_[0]) + 1) }; |
19 | }, |
20 | dec => sub { |
21 | my $attr = shift; |
22 | return sub { $attr->set_value($_[0], $attr->get_value($_[0]) - 1) }; |
23 | }, |
24 | } |
22d869ff |
25 | } |
d26633fc |
26 | ); |
22d869ff |
27 | |
22d869ff |
28 | no Moose; |
88aaf2bd |
29 | no Moose::Util::TypeConstraints; |
22d869ff |
30 | |
31 | # register the alias ... |
32 | package Moose::Meta::Attribute::Custom::Counter; |
33 | sub register_implementation { 'MooseX::AttributeHelpers::Counter' } |
34 | |
35 | 1; |
36 | |
37 | __END__ |
38 | |
39 | =pod |
40 | |
41 | =head1 NAME |
42 | |
43 | MooseX::AttributeHelpers::Counter |
44 | |
45 | =head1 SYNOPSIS |
46 | |
47 | package MyHomePage; |
48 | use Moose; |
49 | |
50 | has 'counter' => ( |
51 | metaclass => 'Counter', |
52 | is => 'rw', |
53 | isa => 'Int', |
54 | default => sub { 0 }, |
55 | provides => { |
56 | inc => 'inc_counter', |
21c7045b |
57 | dec => 'dec_counter', |
22d869ff |
58 | } |
59 | ); |
60 | |
61 | my $page = MyHomePage->new(); |
62 | $page->inc_counter; # same as $page->counter($page->counter + 1); |
21c7045b |
63 | $page->dec_counter; # same as $page->counter($page->counter - 1); |
22d869ff |
64 | |
65 | =head1 DESCRIPTION |
66 | |
67 | =head1 METHODS |
68 | |
69 | =head1 BUGS |
70 | |
71 | All complex software has bugs lurking in it, and this module is no |
72 | exception. If you find a bug please either email me, or add the bug |
73 | to cpan-RT. |
74 | |
75 | =head1 AUTHOR |
76 | |
77 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
78 | |
79 | =head1 COPYRIGHT AND LICENSE |
80 | |
81 | Copyright 2007 by Infinity Interactive, Inc. |
82 | |
83 | L<http://www.iinteractive.com> |
84 | |
85 | This library is free software; you can redistribute it and/or modify |
86 | it under the same terms as Perl itself. |
87 | |
88 | =cut |