Function IsNameSequence

cpp/src/arrow/type.h:2156–2165

\brief Return true if this ref is a name or a nested sequence of only names Useful for determining if iteration is possible without recursion or inner loops

  ///
  /// Useful for determining if iteration is possible without recursion or inner loops
  bool IsNameSequence() const {
    if (IsName()) return true;
    if (const auto* nested = nested_refs()) {
      for (const auto& ref : *nested) {
        if (!ref.IsName()) return false;
      }
      return !nested->empty();
    }
    return false;
  }

  const FieldPath* field_path() const {
    return IsFieldPath() ? &std::get<FieldPath>(impl_) : NULLPTR;