Method CacheKey

tensorflow/core/common_runtime/eager/attr_builder.cc:256–263

}  // namespace

tensorflow::Fprint128 AttrBuilder::CacheKey(const StringPiece device) {
  if (!cached_cache_key_ || device != device_for_cached_cache_key_) {
    cached_cache_key_ = BuildCacheKeyForDevice(device);
    device_for_cached_cache_key_ = string(device);
  }

  return *cached_cache_key_;
}

tensorflow::Fprint128 AttrBuilder::BuildCacheKeyForDevice(
    const StringPiece device) const {