Method operator()

cpp/src/arrow/dataset/scan_node.cc:225–232

    }

    Result<Future<>> operator()() override {
      // Prevent concurrent calls to ScanBatch which might not be thread safe
      std::lock_guard<std::mutex> lk(scan_->mutex);
      return scan_->fragment_scanner->ScanBatch(batch_index_)
          .Then([this](const std::shared_ptr<RecordBatch>& batch) {
            return HandleBatch(batch);
          });
    }

    std::string_view name() const override { return name_; }