35 lines
1.0 KiB
Python
35 lines
1.0 KiB
Python
# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
|
|
#
|
|
# Licensed 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.
|
|
|
|
from __future__ import annotations
|
|
|
|
import collections
|
|
from itertools import repeat
|
|
|
|
|
|
def _ntuple(n, name="parse"):
|
|
def parse(x):
|
|
if isinstance(x, collections.abc.Iterable):
|
|
return tuple(x)
|
|
return tuple(repeat(x, n))
|
|
|
|
parse.__name__ = name
|
|
return parse
|
|
|
|
|
|
_single = _ntuple(1, "_single")
|
|
_pair = _ntuple(2, "_pair")
|
|
_triple = _ntuple(3, "_triple")
|
|
_quadruple = _ntuple(4, "_quadruple")
|