1/* 2 * Copyright (c) 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 16class A { 17 catch<U = never>(onRejected: () => U | PromiseLike<U>): string { 18 onRejected() 19 return "first catch is matched" 20 } 21 catch<U = never>(onRejected: (error: Error) => U | PromiseLike<U>): string { 22 onRejected(new Error()) 23 return "second catch is matched" 24 } 25 catch<U = never>(onRejected: (a: Error, b: Error) => U | PromiseLike<U>): string { 26 onRejected(new Error(), new Error()) 27 return "third catch is matched" 28 } 29 catch<U = never>(onRejected: (a: Error, b: Error, c: Error) => U | PromiseLike<U>): string { 30 onRejected(new Error(), new Error(), new Error()) 31 return "fourth catch is matched" 32 } 33} 34 35function main(){ 36 let a = new A() 37 assertEQ(a.catch(()=>{}),"first catch is matched") 38 assertEQ(a.catch((e:Error|undefined|null)=>{}),"second catch is matched") 39 assertEQ(a.catch((e:Error)=>{}),"second catch is matched") 40 assertEQ(a.catch((e:Error,e2:Error)=>{}),"third catch is matched") 41 assertEQ(a.catch((e:Error,e2:Error,e3:Error)=>{}),"fourth catch is matched") 42} 43