1/* 2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16type T0 = { 17 field: any; 18}; 19 20const f0 = (o: T0) => delete o.field; 21 22type T1 = { 23 field: unknown; 24}; 25 26const f1 = (o: T1) => delete o.field; 27 28type T2 = { 29 field: never; 30}; 31 32const f2 = (o: T2) => delete o.field; 33 34type T3 = { 35 field?: number; 36}; 37 38const f3 = (o: T3) => delete o.field; 39 40type T4 = { 41 field: number; 42}; 43 44const f4 = (o: T4) => delete o.field; 45