1/* 2 * Copyright (c) 2023-2025 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 16interface Fruit {} 17 18function foo(this:Fruit): int { 19 return 1; 20} 21 22class Banana implements Fruit {} 23 24function foo(this:Banana):int { 25 return 2 26} 27 28function asFuncCall() { 29 let banana = new Banana(); 30 let res: int = foo(banana); 31 assertEQ(res, 2 ) 32 let res1: int = foo((banana as Fruit)); 33 assertEQ(res1, 1 ) 34} 35 36function asMethodCall() { 37 let banana = new Banana(); 38 let res: int = banana.foo(); 39 assertEQ(res, 2 ) 40 let res1: int = (banana as Fruit).foo(); 41 assertEQ(res1, 1 ) 42} 43 44function main() { 45 asFuncCall(); 46 asMethodCall(); 47} 48