Function IsMappingHelper

tensorflow/python/util/util.cc:216–222

Returns 1 if `o` is considered a mapping for the purposes of Flatten(). Returns 0 otherwise. Returns -1 if an error occurred.

// Returns 0 otherwise.
// Returns -1 if an error occurred.
int IsMappingHelper(PyObject* o) {
  static auto* const check_cache = new CachedTypeCheck([](PyObject* to_check) {
    return IsInstanceOfRegisteredType(to_check, "Mapping");
  });
  if (PyDict_Check(o)) return true;
  return check_cache->CachedLookup(o);
}

// Returns 1 if `o` is considered a mapping view for the purposes of Flatten().
// Returns 0 otherwise.