1 package Moose::Meta::TypeConstraint::Class;
7 use Scalar::Util 'blessed';
8 use Moose::Util::TypeConstraints ();
10 our $VERSION = '0.54';
11 our $AUTHORITY = 'cpan:STEVAN';
13 use base 'Moose::Meta::TypeConstraint';
15 __PACKAGE__->meta->add_attribute('class' => (
20 my ( $class, %args ) = @_;
22 $args{parent} = Moose::Util::TypeConstraints::find_type_constraint('Object');
23 my $self = $class->meta->new_object(%args);
25 $self->_create_hand_optimized_type_constraint;
26 $self->compile_type_constraint();
31 sub _create_hand_optimized_type_constraint {
33 my $class = $self->class;
34 $self->hand_optimized_type_constraint(
36 blessed( $_[0] ) && $_[0]->isa($class)
46 # FIXME find_type_constraint might find a TC named after the class but that isn't really it
47 # I did this anyway since it's a convention that preceded TypeConstraint::Class, and it should DWIM
48 # if anybody thinks this problematic please discuss on IRC.
49 # a possible fix is to add by attr indexing to the type registry to find types of a certain property
50 # regardless of their name
51 Moose::Util::TypeConstraints::find_type_constraint($_)
53 __PACKAGE__->new( class => $_, name => "__ANON__" )
54 } $self->class->meta->superclasses,
59 my ( $self, $type_or_name ) = @_;
61 my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
63 return unless $other->isa(__PACKAGE__);
65 return $self->class eq $other->class;
69 my ($self, $type_or_name) = @_;
71 my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
73 ($self->equals($type) || $self->is_subtype_of($type_or_name));
77 my ($self, $type_or_name_or_class ) = @_;
79 if ( not ref $type_or_name_or_class ) {
81 return 1 if $self->class->isa( $type_or_name_or_class );
84 my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name_or_class);
86 if ( $type->isa(__PACKAGE__) ) {
87 # if $type_or_name_or_class isn't a class, it might be the TC name of another ::Class type
88 # or it could also just be a type object in this branch
89 return $self->class->isa( $type->class );
91 # the only other thing we are a subtype of is Object
92 $self->SUPER::is_subtype_of($type);
104 Moose::Meta::TypeConstraint::Class - Class/TypeConstraint parallel hierarchy
114 =item B<hand_optimized_type_constraint>
116 =item B<has_hand_optimized_type_constraint>
120 =item B<is_a_type_of>
122 =item B<is_subtype_of>
126 Return all the parent types, corresponding to the parent classes.
134 All complex software has bugs lurking in it, and this module is no
135 exception. If you find a bug please either email me, or add the bug
140 Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt>
142 =head1 COPYRIGHT AND LICENSE
144 Copyright 2006-2008 by Infinity Interactive, Inc.
146 L<http://www.iinteractive.com>
148 This library is free software; you can redistribute it and/or modify
149 it under the same terms as Perl itself.