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(
22 for_class => $p{for_class},
24 class => ['MooseX::ClassAttribute::Role::Meta::Class'],
27 role => ['MooseX::ClassAttribute::Role::Meta::Role'],
37 my $attrs = ref $name eq 'ARRAY' ? $name : [$name];
39 $meta->add_class_attribute( $_, %options ) for @{$attrs};
50 MooseX::ClassAttribute - Declare class attributes Moose-style
57 use MooseX::ClassAttribute;
62 default => sub { {} },
65 __PACKAGE__->meta()->make_immutable();
68 no MooseX::ClassAttribute;
72 My::Class->Cache()->{thing} = ...;
77 This module allows you to declare class attributes in exactly the same
78 way as object attributes, using C<class_has()> instead of C<has()>.
80 You can use any feature of Moose's attribute declarations, including
81 overriding a parent's attributes, delegation (C<handles>), and
82 attribute metaclasses, and it should just work. The one exception is
83 the "required" flag, which is not allowed for class attributes.
85 The accessor methods for class attribute may be called on the class
86 directly, or on objects of that class. Passing a class attribute to
87 the constructor will not set it.
91 This class exports one function when you use it, C<class_has()>. This
92 works exactly like Moose's C<has()>, but it declares class attributes.
94 One little nit is that if you include C<no Moose> in your class, you
95 won't remove the C<class_has()> function. To do that you must include
96 C<no MooseX::ClassAttribute> as well.
98 =head2 Implementation and Immutability
100 This module will add a role to your class's metaclass, See
101 L<MooseX::ClassAttribute::Role::Meta::Class> for details. This role
102 provides introspection methods for class attributes.
104 Class attributes themselves do the
105 L<MooseX::ClassAttribute::Role::Meta::Attribute> role.
107 There is also a L<MooseX::ClassAttribute::Meta::Method::Accessor>
108 which provides part of the inlining implementation for class
111 =head2 Cooperation with Metaclasses and Traits
113 This module should work with most attribute metaclasses and traits,
114 but it's possible that conflicts could occur. This module has been
115 tested to work with C<MooseX::AttributeHelpers>.
119 If you'd like to thank me for the work I've done on this module,
120 please consider making a "donation" to me via PayPal. I spend a lot of
121 free time creating free software, and would appreciate any support
124 Please note that B<I am not suggesting that you must do this> in order
125 for me to continue working on this particular software. I will
126 continue to do so, inasmuch as I have in the past, for as long as it
129 Similarly, a donation made in this way will probably not make me work
130 on this software much more, unless I get so many donations that I can
131 consider working on free software full time, which seems unlikely at
134 To donate, log into PayPal and send money to autarch@urth.org or use
135 the button on this page:
136 L<http://www.urth.org/~autarch/fs-donation.html>
140 Dave Rolsky, C<< <autarch@urth.org> >>
144 Please report any bugs or feature requests to
145 C<bug-moosex-classattribute@rt.cpan.org>, or through the web interface
146 at L<http://rt.cpan.org>. I will be notified, and then you'll
147 automatically be notified of progress on your bug as I make changes.
149 =head1 COPYRIGHT & LICENSE
151 Copyright 2007-2008 Dave Rolsky, All Rights Reserved.
153 This program is free software; you can redistribute it and/or modify
154 it under the same terms as Perl itself.