Moose-2.1405HEADMoose-2.1405master

1 files changed, 141 insertions, 0 deletions

diff --git a/lib/Moose/Meta/Role/Application/ToInstance.pm b/lib/Moose/Meta/Role/Application/ToInstance.pm
new file mode 100644
index 0000000..5e82c45
--- /dev/null
+++ b/lib/Moose/Meta/Role/Application/ToInstance.pm
@@ -0,0 +1,141 @@
+package Moose::Meta::Role::Application::ToInstance;
+our $VERSION = '2.1405';
+
+use strict;
+use warnings;
+use metaclass;
+
+use Scalar::Util 'blessed';
+use List::Util 1.33 'all';
+
+use parent 'Moose::Meta::Role::Application';
+
+__PACKAGE__->meta->add_attribute('rebless_params' => (
+    reader  => 'rebless_params',
+    default => sub { {} },
+    Class::MOP::_definition_context(),
+));
+
+use constant _NEED_OVERLOAD_HACK_FOR_OBJECTS => $] < 5.008009;
+
+sub apply {
+    my ( $self, $role, $object, $args ) = @_;
+
+    my $obj_meta = Class::MOP::class_of($object) || 'Moose::Meta::Class';
+
+    # This is a special case to handle the case where the object's metaclass
+    # is a Class::MOP::Class, but _not_ a Moose::Meta::Class (for example,
+    # when applying a role to a Moose::Meta::Attribute object).
+    $obj_meta = 'Moose::Meta::Class'
+        unless $obj_meta->isa('Moose::Meta::Class');
+
+    my $class = $obj_meta->create_anon_class(
+        superclasses => [ blessed($object) ],
+        roles => [ $role, keys(%$args) ? ($args) : () ],
+        cache => (all { $_ eq '-alias' || $_ eq '-excludes' } keys %$args),
+    );
+
+    $class->rebless_instance( $object, %{ $self->rebless_params } );
+
+    if ( _NEED_OVERLOAD_HACK_FOR_OBJECTS
+        && overload::Overloaded( ref $object ) ) {
+
+        # need to use $_[2] here to apply to the object in the caller
+        _reset_amagic($_[2]);
+    }
+
+    return $object;
+}
+
+1;
+
+# ABSTRACT: Compose a role into an instance
+
+__END__
+
+=pod
+
+=encoding UTF-8
+
+=head1 NAME
+
+Moose::Meta::Role::Application::ToInstance - Compose a role into an instance
+
+=head1 VERSION
+
+version 2.1405
+
+=head1 DESCRIPTION
+
+=head2 METHODS
+
+=over 4
+
+=item B<new>
+
+=item B<meta>
+
+=item B<apply>
+
+=item B<rebless_params>
+
+=back
+
+=head1 BUGS
+
+See L<Moose/BUGS> for details on reporting bugs.
+
+=head1 AUTHORS
+
+=over 4
+
+=item *
+
+Stevan Little <stevan.little@iinteractive.com>
+
+=item *
+
+Dave Rolsky <autarch@urth.org>
+
+=item *
+
+Jesse Luehrs <doy@tozt.net>
+
+=item *
+
+Shawn M Moore <code@sartak.org>
+
+=item *
+
+יובל קוג'מן (Yuval Kogman) <nothingmuch@woobling.org>
+
+=item *
+
+Karen Etheridge <ether@cpan.org>
+
+=item *
+
+Florian Ragwitz <rafl@debian.org>
+
+=item *
+
+Hans Dieter Pearcey <hdp@weftsoar.net>
+
+=item *
+
+Chris Prather <chris@prather.org>
+
+=item *
+
+Matt S Trout <mst@shadowcat.co.uk>
+
+=back
+
+=head1 COPYRIGHT AND LICENSE
+
+This software is copyright (c) 2006 by Infinity Interactive, Inc..
+
+This is free software; you can redistribute it and/or modify it under
+the same terms as the Perl 5 programming language system itself.
+
+=cut