1 package Mouse::Meta::Module;
5 use Mouse::Util qw/get_code_info not_supported load_class/;
6 use Scalar::Util qw/blessed weaken/;
12 # because Mouse doesn't introspect existing classes, we're forced to
13 # only pay attention to other Mouse classes
14 sub _metaclass_cache {
15 my($class, $name) = @_;
16 return $METACLASS_CACHE{$name};
20 my($class, $package_name, @args) = @_;
22 ($package_name && !ref($package_name))
\r
23 || $class->throw_error("You must pass a package name and it cannot be blessed");
\r
25 return $METACLASS_CACHE{$package_name}
26 ||= $class->_new(package => $package_name, @args);
30 my($class_or_instance) = @_;
31 return undef unless defined $class_or_instance;
32 return $METACLASS_CACHE{ blessed($class_or_instance) || $class_or_instance };
35 # Means of accessing all the metaclasses that have
36 # been initialized thus far
37 sub get_all_metaclasses { %METACLASS_CACHE }
38 sub get_all_metaclass_instances { values %METACLASS_CACHE }
39 sub get_all_metaclass_names { keys %METACLASS_CACHE }
40 sub get_metaclass_by_name { $METACLASS_CACHE{$_[0]} }
41 sub store_metaclass_by_name { $METACLASS_CACHE{$_[0]} = $_[1] }
42 sub weaken_metaclass { weaken($METACLASS_CACHE{$_[0]}) }
43 sub does_metaclass_exist { defined $METACLASS_CACHE{$_[0]} }
44 sub remove_metaclass_by_name { delete $METACLASS_CACHE{$_[0]} }
48 sub meta{ Mouse::Meta::Class->initialize(ref $_[0] || $_[0]) }
50 sub _new{ Carp::croak("Mouse::Meta::Module is an abstract class") }
52 sub name { $_[0]->{package} }
53 sub _method_map{ $_[0]->{methods} }
55 sub version { no strict 'refs'; ${shift->name.'::VERSION'} }
56 sub authority { no strict 'refs'; ${shift->name.'::AUTHORITY'} }
61 ($self->version || ()),
62 ($self->authority || ()),
66 # add_attribute is an abstract method
68 sub get_attribute_map { $_[0]->{attributes} }
69 sub has_attribute { exists $_[0]->{attributes}->{$_[1]} }
70 sub get_attribute { $_[0]->{attributes}->{$_[1]} }
71 sub get_attribute_list{ keys %{$_[0]->{attributes}} }
72 sub remove_attribute { delete $_[0]->{attributes}->{$_[1]} }
75 my $name = $_[0]->{package};
77 return \%{ $name . '::' };
81 my($self, $name, $code) = @_;
84 $self->throw_error("You must pass a defined name");
86 if(ref($code) ne 'CODE'){
87 not_supported 'add_method for a method object';
90 $self->_method_map->{$name}++; # Moose stores meta object here.
92 my $pkg = $self->name;
94 no warnings 'redefine';
95 *{ $pkg . '::' . $name } = $code;
98 sub _code_is_mine { # taken from Class::MOP::Class
\r
99 my ( $self, $code ) = @_;
\r
101 my ( $code_package, $code_name ) = get_code_info($code);
\r
103 return $code_package && $code_package eq $self->name
\r
104 || ( $code_package eq 'constant' && $code_name eq '__ANON__' );
\r
108 my($self, $method_name) = @_;
110 return 1 if $self->_method_map->{$method_name};
111 my $code = $self->name->can($method_name);
113 return $code && $self->_code_is_mine($code);
117 my($self, $method_name) = @_;
119 if($self->has_method($method_name)){
120 my $method_metaclass = $self->method_metaclass;
121 load_class($method_metaclass);
123 my $package = $self->name;
124 return $method_metaclass->new(
125 body => $package->can($method_name),
126 name => $method_name,
134 sub get_method_list {
\r
137 return grep { $self->has_method($_) } keys %{ $self->namespace };
\r
141 my($class, $message, %args) = @_;
143 local $Carp::CarpLevel = $Carp::CarpLevel + 1 + ($args{depth} || 0);
144 local $Carp::MaxArgNums = 20; # default is 8, usually we use named args which gets messier though
\r
146 if(exists $args{longmess} && !$args{longmess}){ # intentionaly longmess => 0
147 Carp::croak($message);
150 Carp::confess($message);
160 Mouse::Meta::Module - Common base class for Mouse::Meta::Class and Mouse::Meta::Role