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';
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,
=head1 COPYRIGHT AND LICENSE
-Copyright 2006, 2007 by Infinity Interactive, Inc.
+Copyright 2006-2008 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>