Function IsCompositeTensorHelper

tensorflow/python/util/util.cc:496–501

Returns 1 if `o` is an instance of CompositeTensor. Returns 0 otherwise. Returns -1 if an error occurred.

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

// Returns 1 if `o` is an instance of TypeSpec, but is not TensorSpec.
// Returns 0 otherwise.