Method IsControlFlow

tensorflow/core/graph/graph.h:247–251

    return class_ == NC_DELETE_SESSION_TENSOR;
  }
  bool IsControlFlow() const {
    return (class_ != NC_OTHER) &&  // Fast path
           (IsSwitch() || IsMerge() || IsEnter() || IsExit() ||
            IsNextIteration());
  }
  bool IsHostSend() const { return class_ == NC_HOST_SEND; }
  bool IsHostRecv() const { return class_ == NC_HOST_RECV; }
  bool IsHostFuseRecv() const { return class_ == NC_HOST_FUSE_RECV; }