Method ReplaceNodeFanouts

tensorflow/core/grappler/utils/graph_view.cc:850–883

template <typename T>
void MutableGraphView::ReplaceNodeFanouts(MutableNodeView* node, T* fanouts) {
  node->num_regular_fanouts_ = fanouts->num_regular_fanouts_;
  node->regular_fanouts_by_port_ = std::move(fanouts->regular_fanouts_by_port_);
  for (size_t i = 0; i < node->regular_fanouts_by_port_.size(); ++i) {
    for (size_t j = 0; j < node->regular_fanouts_by_port_[i].size(); ++j) {
      auto& fanout = node->regular_fanouts_by_port_[i][j];
      auto* fanout_node_view = fanout.node_view();
      auto& fanout_fanin = fanout_node_view->regular_fanins_[fanout.index()];
      auto* fanout_fanins_count = &fanout_node_view->fanins_count_;
      DecrementFaninCount(
          fanout_fanins_count,
          {&graph_->node(fanout_fanin.node_index_), fanout_fanin.index()});
      fanout_fanin.node_index_ = node->node_index_;
      IncrementFaninCount(
          fanout_fanins_count,
          {&graph_->node(node->node_index_), fanout_fanin.index()});
    }
  }
  node->controlled_fanouts_ = std::move(fanouts->controlled_fanouts_);
  for (size_t i = 0; i < node->controlled_fanouts_.size(); ++i) {
    auto& fanout = node->controlled_fanouts_[i];
    auto* fanout_node_view = fanout.node_view();
    auto& fanout_fanin =
        fanout_node_view->controlling_fanins_[fanout.fanin_index_];
    auto* fanout_fanins_count = &fanout_node_view->fanins_count_;
    DecrementFaninCount(
        fanout_fanins_count,
        {&graph_->node(fanout_fanin.node_index_), Graph::kControlSlot});
    fanout_fanin.node_index_ = node->node_index_;
    fanout_fanin.fanout_index_ = i;
    IncrementFaninCount(fanout_fanins_count, {&graph_->node(node->node_index_),
                                              Graph::kControlSlot});
  }
}

void MutableGraphView::FixRenamedNodes(
    std::vector<RenamedOrOverwrittenNode>* renamed_nodes,