1#!/usr/bin/env python3 2# 3# Copyright (C) 2022 The Android Open Source Project 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License.""" 16 17from abc import ABC, abstractmethod 18import pathlib 19from typing import Callable 20 21# given a file, give a list of "information" about it 22ExtractInfo = Callable[[pathlib.Path], list[str]] 23 24class Diff(ABC): 25 @abstractmethod 26 def diff(left_path: pathlib.Path, right_path: pathlib.Path) -> list[str]: 27 """Returns a list of strings describing differences in `.o` files. 28 Returns the empty list if these files are deemed "similar enough". 29 """ 30 pass 31