1/* 2 * Copyright (c) 2021-2025 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 16 17class B { 18 foo(a: int, b:int): void { 19 20 } 21 22 cb: (a: int, b: int) => void = this.foo; 23} 24 25class A extends B { 26 foo(a: int): void { 27 28 } 29 30 cb: (a: int) => void = this.foo; 31} 32 33function main(): void { 34 let instance = new A(); 35 instance.cb(1); 36 instance.cb(1, 2); 37} 38 39/* @@? 36:3 Error TypeError: Expected 1 arguments, got 2. */ 40/* @@? 36:3 Error TypeError: No matching call signature for (int, int) */ 41