sub isa {
my $self = shift;
return
- $self->__type_constraint->isa(@_)
- || $self->_try_delegate('isa', @_);
+ blessed $self
+ ? $self->__type_constraint->isa(@_)
+ || $self->_try_delegate( 'isa', @_ )
+ : $self->SUPER::isa(@_);
}
=head2 can
=cut
-sub can { shift->_try_delegate('can', @_) }
+sub can {
+ my $self = shift;
+
+ return blessed $self
+ ? $self->_try_delegate( 'can', @_ )
+ : $self->SUPER::can(@_);
+}
=head2 _throw_error