assign_from_helper(rhs, NS_GET_IID(nsISupports));
assign_with_AddRef(rhs); NSCAP_ASSERT_NO_QUERY_NEEDED();
      operator=( const nsCOMPtr_helper& rhs )          // ...and finally, anything else we might need to assign from          //  can exploit the |nsCOMPtr_helper| facility.        {          assign_from_helper(rhs, NS_GET_IID(nsISupports));          return *this;        }