Commit | Line | Data |
d26633fc |
1 | |
2 | package MooseX::AttributeHelpers::Base; |
3 | use Moose; |
4 | |
5 | our $VERSION = '0.01'; |
6 | our $AUTHORITY = 'cpan:STEVAN'; |
7 | |
8 | extends 'Moose::Meta::Attribute'; |
9 | |
10 | has 'method_constructors' => ( |
11 | is => 'ro', |
12 | isa => 'HashRef', |
13 | default => sub { {} } |
14 | ); |
15 | |
16 | has 'provides' => ( |
17 | is => 'ro', |
18 | isa => 'HashRef', |
19 | required => 1, |
20 | ); |
21 | |
8881a8d3 |
22 | # extend the parents stuff to make sure |
23 | # certain bits are now required ... |
d26633fc |
24 | has '+$!default' => (required => 1); |
25 | has '+type_constraint' => (required => 1); |
26 | |
8881a8d3 |
27 | # this confirms that provides has |
28 | # all valid possibilities in it |
d26633fc |
29 | sub _check_provides { |
30 | my ($self, $provides) = @_; |
31 | my $method_constructors = $self->method_constructors; |
32 | foreach my $key (keys %$provides) { |
33 | (exists $method_constructors->{$key}) |
34 | || confess "$key is an unsupported method type"; |
35 | } |
36 | } |
37 | |
8881a8d3 |
38 | # this provides an opportunity to |
39 | # manipulate the %options to handle |
40 | # some of the provides features |
41 | # correctly. |
d26633fc |
42 | sub _process_options_for_provides { |
43 | my ($self, $options) = @_; |
44 | # ... |
45 | } |
46 | |
47 | before '_process_options' => sub { |
48 | my ($self, %options) = @_; |
d26633fc |
49 | if (exists $options{provides}) { |
50 | $self->_check_provides($options{provides}); |
51 | $self->_process_options_for_provides(\%options); |
52 | } |
53 | }; |
54 | |
55 | after 'install_accessors' => sub { |
56 | my $attr = shift; |
57 | my $class = $attr->associated_class; |
58 | |
59 | my $method_constructors = $attr->method_constructors; |
60 | |
61 | foreach my $key (keys %{$attr->provides}) { |
62 | $class->add_method( |
63 | $attr->provides->{$key}, |
64 | $method_constructors->{$key}->($attr) |
65 | ); |
66 | } |
67 | }; |
68 | |
69 | no Moose; |
d26633fc |
70 | |
71 | 1; |
72 | |
73 | __END__ |
74 | |
75 | =pod |
76 | |
77 | =head1 NAME |
78 | |
79 | MooseX::AttributeHelpers::Base |
80 | |
81 | =head1 SYNOPSIS |
82 | |
83 | =head1 DESCRIPTION |
84 | |
85 | =head1 METHODS |
86 | |
87 | =head1 BUGS |
88 | |
89 | All complex software has bugs lurking in it, and this module is no |
90 | exception. If you find a bug please either email me, or add the bug |
91 | to cpan-RT. |
92 | |
93 | =head1 AUTHOR |
94 | |
95 | Stevan Little E<lt>stevan@iinteractive.comE<gt> |
96 | |
97 | =head1 COPYRIGHT AND LICENSE |
98 | |
99 | Copyright 2007 by Infinity Interactive, Inc. |
100 | |
101 | L<http://www.iinteractive.com> |
102 | |
103 | This library is free software; you can redistribute it and/or modify |
104 | it under the same terms as Perl itself. |
105 | |
106 | =cut |