def p_const_vector_elem_list_list(p):
    """ const_number_list : const_number_list COMMA expr
    """
    if p[1] is None or p[3] is None:
        return

    if not is_static(p[3]):
        if isinstance(p[3], symbols.UNARY):
            tmp = make_constexpr(p.lineno(2), p[3])
        else:
            api.errmsg.syntax_error_not_constant(p.lineno(2))
            p[0] = None
            return
    else:
        tmp = p[3]

    if p[1] is not None:
        p[1].append(tmp)
    p[0] = p[1]
const_number_list : const_number_list COMMA expr