package MooseX::AttributeHelpers::Counter;
use Moose;
-use Moose::Util::TypeConstraints;
-our $VERSION = '0.01';
+our $VERSION = '0.22';
+$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
extends 'Moose::Meta::Attribute';
-
-my %METHOD_CONSTRUCTORS = (
- inc => sub {
- my $attr = shift;
- return sub { $attr->set_value($_[0], $attr->get_value($_[0]) + 1) };
- },
- dec => sub {
- my $attr = shift;
- return sub { $attr->set_value($_[0], $attr->get_value($_[0]) - 1) };
- },
-);
-
-has 'provides' => (
- is => 'ro',
- isa => subtype('HashRef' => where {
- (exists $METHOD_CONSTRUCTORS{$_} || return) for keys %{$_}; 1;
- }),
- required => 1,
-);
-
-has '+$!default' => (required => 1);
-has '+type_constraint' => (required => 1);
-
-before '_process_options' => sub {
- my ($self, %options) = @_;
-
- if (exists $options{provides}) {
- (exists $options{isa})
- || confess "You must define a type with the Counter metaclass";
-
- (find_type_constraint($options{isa})->is_subtype_of('Num'))
- || confess "The type constraint for a Counter must be a subtype of Num";
- }
-};
-
-after 'install_accessors' => sub {
- my $attr = shift;
- my $class = $attr->associated_class;
-
- foreach my $key (keys %{$attr->provides}) {
- (exists $METHOD_CONSTRUCTORS{$key})
- || confess "Unsupported method type ($key)";
- $class->add_method(
- $attr->provides->{$key},
- $METHOD_CONSTRUCTORS{$key}->($attr)
- );
- }
-};
+with 'MooseX::AttributeHelpers::Trait::Counter';
no Moose;
-no Moose::Util::TypeConstraints;
# register the alias ...
-package Moose::Meta::Attribute::Custom::Counter;
+package # hide me from search.cpan.org
+ Moose::Meta::Attribute::Custom::Counter;
sub register_implementation { 'MooseX::AttributeHelpers::Counter' }
1;
MooseX::AttributeHelpers::Counter
-=head1 SYNOPSIS
-
- package MyHomePage;
- use Moose;
-
- has 'counter' => (
- metaclass => 'Counter',
- is => 'rw',
- isa => 'Int',
- default => sub { 0 },
- provides => {
- inc => 'inc_counter',
- }
- );
-
- my $page = MyHomePage->new();
- $page->inc_counter; # same as $page->counter($page->counter + 1);
-
-=head1 DESCRIPTION
-
=head1 METHODS
+=over 4
+
+=item B<meta>
+
+=item B<method_provider>
+
+=item B<has_method_provider>
+
+=item B<helper_type>
+
+=item B<process_options_for_provides>
+
+Run before its superclass method.
+
+=item B<check_provides_values>
+
+Run after its superclass method.
+
+=back
+
=head1 BUGS
-All complex software has bugs lurking in it, and this module is no
+All complex software has bugs lurking in it, and this module is no
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
=head1 COPYRIGHT AND LICENSE
-Copyright 2007 by Infinity Interactive, Inc.
+Copyright 2007-2009 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut
+