Method array

cpp/fory/meta/field_info.h:239–241

    return with_spec(spec_.list(elem));
  }
  constexpr FieldMeta array(FieldNodeSpec elem) const {
    return with_spec(spec_.array(elem));
  }
  constexpr FieldMeta set(FieldNodeSpec elem) const {
    return with_spec(spec_.set(elem));
  }