Method Visit

cpp/src/arrow/acero/exec_plan.cc:257–267

      }

      void Visit(ExecNode* node) {
        if (visited.count(node) != 0) return;

        for (auto input : node->inputs()) {
          // Ensure that producers are inserted before this consumer
          Visit(input);
        }

        sorted[visited.size()] = node;
        visited.insert(node);
      }
    };

    return std::move(Impl{nodes_}.sorted);