use Class::MOP;
use Carp 'confess';
-use Scalar::Util 'weaken', 'blessed';
+use Scalar::Util 'weaken', 'blessed', 'reftype';
our $VERSION = '0.05';
my $pkg = shift;
$class->SUPER::initialize($pkg,
':attribute_metaclass' => 'Moose::Meta::Attribute',
+ ':instance_metaclass' => 'Moose::Meta::Instance',
@_);
}
my ($class, %params) = @_;
my $self = $class->SUPER::new_object(%params);
foreach my $attr ($class->compute_all_applicable_attributes()) {
- next unless $params{$attr->name} && $attr->has_trigger;
- $attr->trigger->($self, $params{$attr->name});
+ next unless $params{$attr->init_arg} && $attr->can('has_trigger') && $attr->has_trigger;
+ $attr->trigger->($self, $params{$attr->init_arg}, $attr);
}
return $self;
}
sub construct_instance {
my ($class, %params) = @_;
- my $instance = $params{'__INSTANCE__'} || {};
+ my $meta_instance = $class->get_meta_instance;
+ # FIXME:
+ # the code below is almost certainly incorrect
+ # but this is foreign inheritence, so we might
+ # have to kludge it in the end.
+ my $instance = $params{'__INSTANCE__'} || $meta_instance->create_instance();
foreach my $attr ($class->compute_all_applicable_attributes()) {
- my $init_arg = $attr->init_arg();
- # try to fetch the init arg from the %params ...
- my $val;
- if (exists $params{$init_arg}) {
- $val = $params{$init_arg};
- }
- else {
- # skip it if it's lazy
- next if $attr->is_lazy;
- # and die if it's required and doesn't have a default value
- confess "Attribute (" . $attr->name . ") is required"
- if $attr->is_required && !$attr->has_default;
- }
- # if nothing was in the %params, we can use the
- # attribute's default value (if it has one)
- if (!defined $val && $attr->has_default) {
- $val = $attr->default($instance);
- }
- if (defined $val) {
- if ($attr->has_type_constraint) {
- if ($attr->should_coerce && $attr->type_constraint->has_coercion) {
- $val = $attr->type_constraint->coercion->coerce($val);
- }
- (defined($attr->type_constraint->check($val)))
- || confess "Attribute (" . $attr->name . ") does not pass the type contraint with '$val'";
- }
- }
- $instance->{$attr->name} = $val;
- if (defined $val && $attr->is_weak_ref) {
- weaken($instance->{$attr->name});
- }
+ $attr->initialize_instance_slot($meta_instance, $instance, \%params)
}
return $instance;
}
return $self->SUPER::has_method($method_name);
}
-
sub add_override_method_modifier {
my ($self, $name, $method, $_super_package) = @_;
# need this for roles ...
not only check it's local roles, but ask them as well in order to
cascade down the role hierarchy.
+=item B<add_attribute $attr_name, %params>
+
+This method does the same thing as L<Class::MOP::Class/add_attribute>, but adds
+suport for delegation.
+
+=back
+
+=head1 INTERNAL METHODS
+
+=over 4
+
+=item compute_delegation
+
+=item generate_delegation_list
+
+=item generate_delgate_method
+
+=item get_delegatable_methods
+
+=item filter_delegations
+
=back
=head1 BUGS
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
-=cut
\ No newline at end of file
+=cut
+