13af6ab5fSopenharmony_ci/* 23af6ab5fSopenharmony_ci * Copyright (c) 2023-2024 Huawei Device Co., Ltd. 33af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License"); 43af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License. 53af6ab5fSopenharmony_ci * You may obtain a copy of the License at 63af6ab5fSopenharmony_ci * 73af6ab5fSopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0 83af6ab5fSopenharmony_ci * 93af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software 103af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS, 113af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 123af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and 133af6ab5fSopenharmony_ci * limitations under the License. 143af6ab5fSopenharmony_ci */ 153af6ab5fSopenharmony_ci 163af6ab5fSopenharmony_ciclass DescribableFunction { 173af6ab5fSopenharmony_ci description: string 183af6ab5fSopenharmony_ci public invoke(someArg: number): string { 193af6ab5fSopenharmony_ci return someArg.toString() 203af6ab5fSopenharmony_ci } 213af6ab5fSopenharmony_ci constructor() { 223af6ab5fSopenharmony_ci this.description = "desc" 233af6ab5fSopenharmony_ci } 243af6ab5fSopenharmony_ci} 253af6ab5fSopenharmony_ci 263af6ab5fSopenharmony_cifunction doSomething(fn: DescribableFunction): void { 273af6ab5fSopenharmony_ci console.log(fn.description + " returned " + fn.invoke(6)) 283af6ab5fSopenharmony_ci} 293af6ab5fSopenharmony_ci 303af6ab5fSopenharmony_cidoSomething(new DescribableFunction())