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 foo(a : int){} 18 foo() { 19 return 1 20 } 21} 22 23class B { 24 foo(a : int){} 25 foo() { 26 return 2 27 } 28} 29type AAA = A | B 30function foo<T extends AAA>(a : T) { 31 return a.foo() 32} 33function main() { 34 assertEQ(foo(new A()), 1) 35 assertEQ(foo(new B()), 2) 36} 37