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package MooseX::ClassAttribute::Trait::Mixin::HasClassAttributes;
use strict;
use warnings;
our $VERSION = '0.29';
use namespace::autoclean;
use Moose::Role;
has _class_attribute_map => (
traits => ['Hash'],
is => 'ro',
isa => 'HashRef[Class::MOP::Mixin::AttributeCore]',
handles => {
'_add_class_attribute' => 'set',
'has_class_attribute' => 'exists',
'get_class_attribute' => 'get',
'_remove_class_attribute' => 'delete',
'get_class_attribute_list' => 'keys',
},
default => sub { {} },
init_arg => undef,
);
# deprecated
sub get_class_attribute_map {
return $_[0]->_class_attribute_map();
}
sub add_class_attribute {
my $self = shift;
my $attribute = shift;
( $attribute->isa('Class::MOP::Mixin::AttributeCore') )
|| confess
"Your attribute must be an instance of Class::MOP::Mixin::AttributeCore (or a subclass)";
$self->_attach_class_attribute($attribute);
my $attr_name = $attribute->name;
$self->remove_class_attribute($attr_name)
if $self->has_class_attribute($attr_name);
my $order = ( scalar keys %{ $self->_attribute_map } );
$attribute->_set_insertion_order($order);
$self->_add_class_attribute( $attr_name => $attribute );
# This method is called to allow for installing accessors. Ideally, we'd
# use method overriding, but then the subclass would be responsible for
# making the attribute, which would end up with lots of code
# duplication. Even more ideally, we'd use augment/inner, but this is
# Class::MOP!
$self->_post_add_class_attribute($attribute)
if $self->can('_post_add_class_attribute');
return $attribute;
}
sub remove_class_attribute {
my $self = shift;
my $name = shift;
( defined $name && $name )
|| confess 'You must provide an attribute name';
my $removed_attr = $self->get_class_attribute($name);
return unless $removed_attr;
$self->_remove_class_attribute($name);
return $removed_attr;
}
1;
# ABSTRACT: A mixin trait for things which have class attributes
__END__
=pod
=encoding UTF-8
=head1 NAME
MooseX::ClassAttribute::Trait::Mixin::HasClassAttributes - A mixin trait for things which have class attributes
=head1 VERSION
version 0.29
=head1 DESCRIPTION
This trait is like L<Class::MOP::Mixin::HasAttributes>, except that it works
with class attributes instead of object attributes.
See L<MooseX::ClassAttribute::Trait::Class> and
L<MooseX::ClassAttribute::Trait::Role> for API details.
=head1 BUGS
See L<MooseX::ClassAttribute> for details.
Bugs may be submitted through L<the RT bug tracker|http://rt.cpan.org/Public/Dist/Display.html?Name=MooseX-ClassAttribute>
(or L<bug-moosex-classattribute@rt.cpan.org|mailto:bug-moosex-classattribute@rt.cpan.org>).
I am also usually active on IRC as 'drolsky' on C<irc://irc.perl.org>.
=head1 AUTHOR
Dave Rolsky <autarch@urth.org>
=head1 COPYRIGHT AND LICENCE
This software is Copyright (c) 2016 by Dave Rolsky.
This is free software, licensed under:
The Artistic License 2.0 (GPL Compatible)
=cut
|
