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 16//Note: validate public method could be used as value. 17function doTaskOutSide(doSomething: ()=>void) { 18 doSomething(); 19} 20 21class A { 22 data: string = "hello" 23 method():void { 24 this.data = "hello in method" 25 } 26 doTask(doSomething: ()=>void) { 27 doSomething(); 28 } 29} 30 31let a = new A(); 32a.doTask(a.method); 33assertEQ(a.data, "hello in method"); 34a.data = ""; 35assertEQ(a.data, ""); 36doTaskOutSide(a.method); 37assertEQ(a.data, "hello in method"); 38