1/* 2 * Copyright (c) 2023 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 16declare function print(arg: any): string; 17declare class ArkTools { 18 static isNotHoleProperty(obj: object, key: string): boolean; 19} 20 21class C { 22 constructor() { 23 // @ts-ignore 24 foo(this); 25 } 26} 27 28class D extends C { 29 x: number = 1; 30 constructor() { 31 super(); 32 } 33} 34 35function foo(obj: D) { 36 print(obj.x); 37} 38 39function test(): void { 40 let d = new D(); 41 print(ArkTools.isNotHoleProperty(d, "x")); 42} 43 44test(); 45