1/** 2 * Copyright (c) 2024-2025 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// Before AOP: 16 17class A {} 18class B extends A {} 19 20function foo (): boolean { 21 let a = new B(); 22 return false; 23} 24 25function main() { 26 console.log(foo()) 27} 28 29// After AOP: 30// 31// class A {} 32// class B extends A {} 33// 34// function main() { 35// let a = new B(); 36// return <is_instance A>; // expected to be true 37// } 38// 39// function main() { 40// console.log(foo()) 41// } 42