use Scalar::Util 'blessed', 'reftype', 'weaken';
use Sub::Name 'subname';
-our $VERSION = '0.25';
+our $VERSION = '0.26';
our $AUTHORITY = 'cpan:STEVAN';
use base 'Class::MOP::Module';
}
# and check the metaclass compatibility
- $meta->check_metaclass_compatability();
-
- # initialize some stuff
- $meta->get_method_map;
- $meta->reset_package_cache_flag;
+ $meta->check_metaclass_compatability();
Class::MOP::store_metaclass_by_name($package_name, $meta);
$meta;
}
-sub reset_package_cache_flag {
+sub reset_package_cache_flag { (shift)->{'$!_package_cache_flag'} = undef }
+sub update_package_cache_flag {
+ my $self = shift;
# NOTE:
# we can manually update the cache number
# since we are actually adding the method
# to our cache as well. This avoids us
# having to regenerate the method_map.
# - SL
- (shift)->{'$!_package_cache_flag'} = Class::MOP::check_package_cache_flag();
+ $self->{'$!_package_cache_flag'} = Class::MOP::check_package_cache_flag($self->name);
}
sub check_metaclass_compatability {
my $self = shift;
if (defined $self->{'$!_package_cache_flag'} &&
- $self->{'$!_package_cache_flag'} == Class::MOP::check_package_cache_flag()) {
+ $self->{'$!_package_cache_flag'} == Class::MOP::check_package_cache_flag($self->name)) {
return $self->{'%!methods'};
}
return $clone;
}
+sub rebless_instance {
+ my ($self, $instance, $new_metaclass) = @_;
+
+ # it's okay (expected, even) to pass in a package name
+ unless (blessed $new_metaclass) {
+ $new_metaclass = $self->initialize($new_metaclass);
+ }
+ my $meta_instance = $self->get_meta_instance();
+
+ # make sure we're reblessing into a subclass
+ my $is_subclass = 0;
+ for my $superclass ($new_metaclass->linearized_isa) {
+ if ($superclass eq $self->name) {
+ $is_subclass = 1;
+ last;
+ }
+ }
+
+ $is_subclass
+ || confess "You may rebless only into a subclass. (". $new_metaclass->name .") is not a subclass of (". $self->name .").";
+
+ # rebless!
+ $meta_instance->rebless_instance_structure($instance, $new_metaclass);
+
+ # check and upgrade all attributes
+ my %params = map { $_->name => $meta_instance->get_slot_value($instance, $_->name) }
+ grep { $meta_instance->is_slot_initialized($instance, $_->name) }
+ $new_metaclass->compute_all_applicable_attributes;
+
+ foreach my $attr ($new_metaclass->compute_all_applicable_attributes) {
+ $attr->initialize_instance_slot($meta_instance, $instance, \%params);
+ }
+}
+
# Inheritance
sub superclasses {
my $symbol_table_hashref = do { no strict 'refs'; \%{"${outer_class}::"} };
- SYMBOL:
+ SYMBOL:
for my $symbol ( keys %$symbol_table_hashref ) {
next SYMBOL if $symbol !~ /\A (\w+):: \z/x;
my $inner_class = $1;
sub linearized_isa {
- my %seen;
- grep { !($seen{$_}++) } (shift)->class_precedence_list
+ if (Class::MOP::IS_RUNNING_ON_5_10()) {
+ return @{ mro::get_linear_isa( (shift)->name ) };
+ }
+ else {
+ my %seen;
+ return grep { !($seen{$_}++) } (shift)->class_precedence_list;
+ }
}
sub class_precedence_list {
my $self = shift;
- # NOTE:
- # We need to check for circular inheritance here.
- # This will do nothing if all is well, and blow
- # up otherwise. Yes, it's an ugly hack, better
- # suggestions are welcome.
- { ($self->name || return)->isa('This is a test for circular inheritance') }
+
+ unless (Class::MOP::IS_RUNNING_ON_5_10()) {
+ # NOTE:
+ # We need to check for circular inheritance here
+ # if we are are not on 5.10, cause 5.8 detects it
+ # late. This will do nothing if all is well, and
+ # blow up otherwise. Yes, it's an ugly hack, better
+ # suggestions are welcome.
+ # - SL
+ ($self->name || return)->isa('This is a test for circular inheritance')
+ }
(
$self->name,
my $full_method_name = ($self->name . '::' . $method_name);
$self->add_package_symbol("&${method_name}" => subname $full_method_name => $body);
- $self->reset_package_cache_flag;
+ $self->update_package_cache_flag;
}
{
|| confess "Your code block must be a CODE reference";
$self->add_package_symbol("&${method_name}" => $body);
- $self->reset_package_cache_flag;
+ $self->update_package_cache_flag;
}
sub has_method {
$self->remove_package_symbol("&${method_name}");
- $self->reset_package_cache_flag;
+ $self->update_package_cache_flag;
return $removed_method;
}
$IMMUTABLE_TRANSFORMERS{$class} ||= $self->create_immutable_transformer;
my $transformer = $IMMUTABLE_TRANSFORMERS{$class};
- $transformer->make_metaclass_immutable($self, %options);
+ $transformer->make_metaclass_immutable($self, \%options);
$IMMUTABLE_OPTIONS{$self->name} =
{ %options, IMMUTABLE_TRANSFORMER => $transformer };
my $options = delete $IMMUTABLE_OPTIONS{$self->name};
confess "unable to find immutabilizing options" unless ref $options;
my $transformer = delete $options->{IMMUTABLE_TRANSFORMER};
- $transformer->make_metaclass_mutable($self, %$options);
+ $transformer->make_metaclass_mutable($self, $options);
}
}
your ancestors. For more inforamtion about metaclass compatibility
see the C<About Metaclass compatibility> section in L<Class::MOP>.
-=item B<reset_package_cache_flag>
+=item B<update_package_cache_flag>
This will reset the package cache flag for this particular metaclass
it is basically the value of the C<Class::MOP::get_package_cache_flag>
function. This is very rarely needed from outside of C<Class::MOP::Class>
but in some cases you might want to use it, so it is here.
+=item B<reset_package_cache_flag>
+
+Clear this flag, used in Moose.
+
=back
=head2 Object instance construction and cloning
=head1 COPYRIGHT AND LICENSE
-Copyright 2006, 2007 by Infinity Interactive, Inc.
+Copyright 2006-2008 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>