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// @ts-nocheck 16declare function print(a:any):string; 17 18// Proxy 19class A { 20 x:number; 21 constructor() { 22 this.x = 10; 23 } 24} 25 26let p = new Proxy(new A(), { 27 get() { 28 return 5; 29 } 30}) 31 32function foo(a:A) { 33 print(a.x); 34} 35 36foo(p); 37 38 39// Undefined 40class B { 41 x:number; 42 static getInstance():B { 43 return undefined; 44 } 45} 46 47try { 48 B.getInstance().x; 49} catch(e) { 50 print(e instanceof TypeError); 51}