# Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, # software distributed under the License is distributed on an # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY # KIND, either express or implied. See the License for the # specific language governing permissions and limitations # under the License. # pylint: disable=wildcard-import, redefined-builtin, invalid-name """ Utility functions that are used across many directories. """ from __future__ import absolute_import import numpy as np from . import expr as _expr def get_scalar_from_constant(expr): """ Returns scalar value from Relay constant scalar. """ assert isinstance(expr, _expr.Constant) and not expr.data.shape, \ "Expr is not a constant scalar." value = expr.data.asnumpy() if value.dtype == np.dtype(np.int32): return int(value) if value.dtype == np.dtype(np.float32): return float(value) assert False, "Constant expr must be float32/int32" return None # To suppress pylint