Function TFE_Py_TapeWatch

tensorflow/python/eager/pywrap_tfe_src.cc:1683–1692

}

void TFE_Py_TapeWatch(PyObject* tape, PyObject* tensor) {
  if (*ThreadTapeIsStopped()) {
    return;
  }
  tensorflow::int64 tensor_id = FastTensorId(tensor);
  if (PyErr_Occurred()) {
    return;
  }
  reinterpret_cast<TFE_Py_Tape*>(tape)->tape->Watch(tensor_id);
}

bool ListContainsNone(PyObject* list) {
  if (list == Py_None) return true;