1 package MooseX::ClassAttribute;
7 our $AUTHORITY = 'cpan:DROLSKY';
11 use MooseX::ClassAttribute::Role::Meta::Class;
13 Moose::Exporter->setup_import_methods( with_meta => ['class_has'] );
21 return Moose::Util::MetaRole::apply_metaclass_roles(
24 class => ['MooseX::ClassAttribute::Role::Meta::Class'],
28 # role => ['MooseX::ClassAttribute::Role::Meta::Role'],
38 my $attrs = ref $name eq 'ARRAY' ? $name : [$name];
40 $meta->add_class_attribute( $_, %options ) for @{$attrs};
51 MooseX::ClassAttribute - Declare class attributes Moose-style
58 use MooseX::ClassAttribute;
63 default => sub { {} },
66 __PACKAGE__->meta()->make_immutable();
69 no MooseX::ClassAttribute;
73 My::Class->Cache()->{thing} = ...;
78 This module allows you to declare class attributes in exactly the same
79 way as object attributes, using C<class_has()> instead of C<has()>.
81 You can use any feature of Moose's attribute declarations, including
82 overriding a parent's attributes, delegation (C<handles>), and
83 attribute metaclasses, and it should just work. The one exception is
84 the "required" flag, which is not allowed for class attributes.
86 The accessor methods for class attribute may be called on the class
87 directly, or on objects of that class. Passing a class attribute to
88 the constructor will not set it.
92 This class exports one function when you use it, C<class_has()>. This
93 works exactly like Moose's C<has()>, but it declares class attributes.
95 One little nit is that if you include C<no Moose> in your class, you
96 won't remove the C<class_has()> function. To do that you must include
97 C<no MooseX::ClassAttribute> as well.
99 =head2 Implementation and Immutability
101 This module will add a role to your class's metaclass, See
102 L<MooseX::ClassAttribute::Role::Meta::Class> for details. This role
103 provides introspection methods for class attributes.
105 Class attributes themselves do the
106 L<MooseX::ClassAttribute::Role::Meta::Attribute> role.
108 There is also a L<MooseX::ClassAttribute::Meta::Method::Accessor>
109 which provides part of the inlining implementation for class
112 =head2 Cooperation with Metaclasses and Traits
114 This module should work with most attribute metaclasses and traits,
115 but it's possible that conflicts could occur. This module has been
116 tested to work with C<MooseX::AttributeHelpers>.
120 If you'd like to thank me for the work I've done on this module,
121 please consider making a "donation" to me via PayPal. I spend a lot of
122 free time creating free software, and would appreciate any support
125 Please note that B<I am not suggesting that you must do this> in order
126 for me to continue working on this particular software. I will
127 continue to do so, inasmuch as I have in the past, for as long as it
130 Similarly, a donation made in this way will probably not make me work
131 on this software much more, unless I get so many donations that I can
132 consider working on free software full time, which seems unlikely at
135 To donate, log into PayPal and send money to autarch@urth.org or use
136 the button on this page:
137 L<http://www.urth.org/~autarch/fs-donation.html>
141 Dave Rolsky, C<< <autarch@urth.org> >>
145 Please report any bugs or feature requests to
146 C<bug-moosex-classattribute@rt.cpan.org>, or through the web interface
147 at L<http://rt.cpan.org>. I will be notified, and then you'll
148 automatically be notified of progress on your bug as I make changes.
150 =head1 COPYRIGHT & LICENSE
152 Copyright 2007-2008 Dave Rolsky, All Rights Reserved.
154 This program is free software; you can redistribute it and/or modify
155 it under the same terms as Perl itself.