use strict;
use warnings;
-use Scalar::Util 'blessed';
use Carp 'confess';
-use SUPER ();
+use Scalar::Util ();
use Class::MOP::Class;
use Class::MOP::Attribute;
use Class::MOP::Method;
-our $VERSION = '0.07';
-
-sub import {
- shift;
- return unless @_;
- if ($_[0] eq ':universal') {
- *UNIVERSAL::meta = sub {
- Class::MOP::Class->initialize(blessed($_[0]) || $_[0])
- };
- }
- else {
- my $pkg = caller();
- no strict 'refs';
- *{$pkg . '::' . $_[0]} = sub {
- Class::MOP::Class->initialize(blessed($_[0]) || $_[0])
- };
- }
-}
+use Class::MOP::Class::Immutable;
+
+our $VERSION = '0.31';
+
+## ----------------------------------------------------------------------------
+## Setting up our environment ...
+## ----------------------------------------------------------------------------
+## Class::MOP needs to have a few things in the global perl environment so
+## that it can operate effectively. Those things are done here.
+## ----------------------------------------------------------------------------
+
+# ... nothing yet actually ;)
## ----------------------------------------------------------------------------
## Bootstrapping
# any subclass of Class::MOP::* will be able to
# inherit them using &construct_instance
-## Class::MOP::Class
+## Class::MOP::Package
-Class::MOP::Class->meta->add_attribute(
+Class::MOP::Package->meta->add_attribute(
Class::MOP::Attribute->new('$:package' => (
- reader => 'name',
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ 'name' => sub { (shift)->{'$:package'} }
+ },
init_arg => ':package',
))
);
+## Class::MOP::Class
+
Class::MOP::Class->meta->add_attribute(
Class::MOP::Attribute->new('%:attributes' => (
- reader => 'get_attribute_map',
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ 'get_attribute_map' => sub { (shift)->{'%:attributes'} }
+ },
init_arg => ':attributes',
default => sub { {} }
))
))
);
+Class::MOP::Class->meta->add_attribute(
+ Class::MOP::Attribute->new('$:instance_metaclass' => (
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ 'instance_metaclass' => sub { (shift)->{'$:instance_metaclass'} }
+ },
+ init_arg => ':instance_metaclass',
+ default => 'Class::MOP::Instance',
+ ))
+);
+
## Class::MOP::Attribute
Class::MOP::Attribute->meta->add_attribute(
Class::MOP::Attribute->new('name' => (
- reader => 'name'
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ 'name' => sub { (shift)->{name} }
+ }
))
);
Class::MOP::Attribute->meta->add_attribute(
Class::MOP::Attribute->new('associated_class' => (
- reader => 'associated_class'
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ 'associated_class' => sub { (shift)->{associated_class} }
+ }
))
);
Class::MOP::Attribute->meta->add_method('clone' => sub {
my $self = shift;
- my $class = $self->associated_class;
- $self->detach_from_class() if defined $class;
- my $clone = $self->meta->clone_object($self, @_);
- if (defined $class) {
- $self->attach_to_class($class);
- $clone->attach_to_class($class);
- }
- return $clone;
+ $self->meta->clone_object($self, @_);
});
+## Try and close Class::MOP::*
+
+Class::MOP::Package ->meta->make_immutable(inline_constructor => 0);
+Class::MOP::Module ->meta->make_immutable(inline_constructor => 0);
+Class::MOP::Class ->meta->make_immutable(inline_constructor => 0);
+Class::MOP::Attribute->meta->make_immutable(inline_constructor => 0);
+Class::MOP::Method ->meta->make_immutable(inline_constructor => 0);
+Class::MOP::Instance ->meta->make_immutable(inline_constructor => 0);
+
+
1;
__END__
made for these tools to keep to the spirit of the Perl 5 object
system that we all know and love.
+This documentation is admittedly sparse on details, as time permits
+I will try to improve them. For now, I suggest looking at the items
+listed in the L<SEE ALSO> section for more information. In particular
+the book "The Art of the Meta Object Protocol" was very influential
+in the development of this system.
+
=head2 What is a Meta Object Protocol?
A meta object protocol is an API to an object system.
I<Uniform and safe metaclass composition> linked to in the
L<SEE ALSO> section of this document.
+=head2 Using custom metaclasses
+
+Always use the metaclass pragma when using a custom metaclass, this
+will ensure the proper initialization order and not accidentely
+create an incorrect type of metaclass for you. This is a very rare
+problem, and one which can only occur if you are doing deep metaclass
+programming. So in other words, don't worry about it.
+
=head1 PROTOCOLS
The protocol is divided into 3 main sub-protocols:
exception. If you find a bug please either email me, or add the bug
to cpan-RT.
+=head1 CODE COVERAGE
+
+I use L<Devel::Cover> to test the code coverage of my tests, below is the
+L<Devel::Cover> report on this module's test suite.
+
+ ---------------------------- ------ ------ ------ ------ ------ ------ ------
+ File stmt bran cond sub pod time total
+ ---------------------------- ------ ------ ------ ------ ------ ------ ------
+ Class/MOP.pm 100.0 100.0 100.0 100.0 n/a 19.8 100.0
+ Class/MOP/Attribute.pm 100.0 100.0 91.7 61.2 100.0 14.3 87.9
+ Class/MOP/Class.pm 97.6 91.3 77.3 98.4 100.0 56.4 93.2
+ Class/MOP/Instance.pm 91.1 75.0 33.3 91.7 100.0 6.8 90.7
+ Class/MOP/Method.pm 97.6 60.0 52.9 76.9 100.0 1.6 82.6
+ metaclass.pm 100.0 100.0 83.3 100.0 n/a 1.0 97.7
+ ---------------------------- ------ ------ ------ ------ ------ ------ ------
+ Total 97.5 88.5 75.5 82.8 100.0 100.0 91.2
+ ---------------------------- ------ ------ ------ ------ ------ ------ ------
+
=head1 ACKNOWLEDGEMENTS
=over 4
=back
-=head1 AUTHOR
+=head1 AUTHORS
Stevan Little E<lt>stevan@iinteractive.comE<gt>
+Yuval Kogman E<lt>nothingmuch@woobling.comE<gt>
+
=head1 COPYRIGHT AND LICENSE
Copyright 2006 by Infinity Interactive, Inc.
projects / gitmo/Class-MOP.git / blobdiff