Method Impl

cpp/src/arrow/acero/exec_plan.cc:246–255

      NodeVector sorted;

      explicit Impl(const std::vector<std::unique_ptr<ExecNode>>& nodes) : nodes(nodes) {
        visited.reserve(nodes.size());
        sorted.resize(nodes.size());

        for (const auto& node : nodes) {
          Visit(node.get());
        }

        DCHECK_EQ(visited.size(), nodes.size());
      }

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