Method AddNode

tensorflow/core/graph/graph.cc:433–450

void Graph::set_versions(const VersionDef& versions) { *versions_ = versions; }

Node* Graph::AddNode(NodeDef node_def, Status* status) {
  const OpDef* op_def;
  status->Update(ops_.LookUpOpDef(node_def.op(), &op_def));
  if (!status->ok()) return nullptr;

  DataTypeVector inputs;
  DataTypeVector outputs;
  status->Update(InOutTypesForNode(node_def, *op_def, &inputs, &outputs));
  if (!status->ok()) {
    *status = AttachDef(*status, node_def);
    return nullptr;
  }

  Node* node = AllocateNode(std::make_shared<NodeProperties>(
                                op_def, std::move(node_def), inputs, outputs),
                            nullptr);
  return node;
}

Node* Graph::CopyNode(const Node* node) {
  DCHECK(!node->IsSource());