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 Base {} 17class Derived extends Base {} 18type BaseOrDerived = Base|Derived; 19let res = 0; 20 21function bar(p1: Base, p2: Derived, p3: BaseOrDerived) {res = 1;} 22function bar(p1: Derived, p2: Base, p3: BaseOrDerived) {res = 2;} 23function bar(p1: Base, p2: Base, ...p3: BaseOrDerived[]) {res = 3;} 24 25bar (new Derived, new Base, new Derived); 26assertEQ(res, 2);