Method Finish

cpp/src/arrow/array/util.cc:341–344

        : type_(*type), length_(length), buffer_length_(bit_util::BytesForBits(length)) {}

    Result<int64_t> Finish() && {
      RETURN_NOT_OK(VisitTypeInline(type_, this));
      return buffer_length_;
    }

    template <typename T, typename = decltype(TypeTraits<T>::bytes_required(0))>
    Status Visit(const T&) {