=cut
sub isa {
- return 1 if $_[1]->isa('Moose::Meta::TypeConstraint');
- shift->_try_delegate('isa', @_)
+ my $self = shift;
+ return
+ $self->__type_constraint->isa(@_)
+ || $self->_try_delegate('isa', @_);
}
=head2 can
my ($self, $method, @args) = @_;
my $tc = $self->__type_constraint;
my $class;
- my $search_tc = $tc;
- while ($search_tc->is_subtype_of('Object')) {
- if ($search_tc->isa('Moose::Meta::TypeConstraint::Class')) {
- $class = $search_tc->class;
- last;
+ if ($tc->can('is_subtype_of')) { # Union can't
+ my $search_tc = $tc;
+ while (1) {
+ if ($search_tc->isa('Moose::Meta::TypeConstraint::Class')) {
+ $class = $search_tc->class;
+ last;
+ }
+ $search_tc = $search_tc->parent;
+ last unless $search_tc->is_subtype_of('Object');
}
- $search_tc = $search_tc->parent;
}
my $inv = (