2 package Class::MOP::Method::Meta;
8 use Scalar::Util 'blessed';
10 our $VERSION = '1.08';
11 $VERSION = eval $VERSION;
12 our $AUTHORITY = 'cpan:STEVAN';
14 use constant DEBUG_NO_META => $ENV{DEBUG_NO_META};
16 use base 'Class::MOP::Method';
18 sub _is_caller_mop_internal {
21 return $caller =~ /^(?:Class::MOP|metaclass)(?:::|$)/;
24 sub _generate_meta_method {
25 my $method_self = shift;
26 my $metaclass = shift;
28 # this will be compiled out if the env var wasn't set
30 confess "'meta' method called by MOP internals"
31 # it's okay to call meta methods on metaclasses, since we
32 # explicitly ask for them
33 if !$_[0]->isa('Class::MOP::Object')
34 && !$_[0]->isa('Class::MOP::Mixin')
35 # it's okay if the test itself calls ->meta, we only care about
36 # if the mop internals call ->meta
37 && $method_self->_is_caller_mop_internal(scalar caller);
39 # we must re-initialize so that it
40 # works as expected in subclasses,
41 # since metaclass instances are
42 # singletons, this is not really a
44 $metaclass->initialize(blessed($_[0]) || $_[0])
49 my ($class, @args) = @_;
51 unshift @args, 'body' if @args % 2 == 1;
53 confess "Overriding the body of meta methods is not allowed"
56 my $metaclass_class = $params{associated_metaclass}->meta;
57 $params{body} = $class->_generate_meta_method($metaclass_class);
58 return $class->SUPER::wrap(%params);
69 Class::MOP::Method::Meta - Method Meta Object for C<meta> methods
73 This is a L<Class::MOP::Method> subclass which represents C<meta>
74 methods installed into classes by Class::MOP.
80 =item B<< Class::MOP::Method::Wrapped->wrap($metamethod, %options) >>
82 This is the constructor. It accepts a L<Class::MOP::Method> object and
83 a hash of options. The options accepted are identical to the ones
84 accepted by L<Class::MOP::Method>, except that C<body> cannot be passed
85 (it will be generated automatically).
91 Jesse Luehrs E<lt>doy at tozt dot netE<gt>
93 =head1 COPYRIGHT AND LICENSE
95 Copyright 2006-2010 by Infinity Interactive, Inc.
97 L<http://www.iinteractive.com>
99 This library is free software; you can redistribute it and/or modify
100 it under the same terms as Perl itself.