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 16export namespace BarNameSpace { 17 export type Callback = (arg: string) => void 18 19 export namespace FooNameSpace { 20 export type Callback2 = (arg: string) => void 21 } 22} 23 24function foo(arg: BarNameSpace.Callback): void { 25 arg('hello'); 26} 27 28function bar(arg: BarNameSpace.FooNameSpace.Callback2): void { 29 arg('goodbye'); 30} 31 32function main(): void { 33 foo((arg) => { 34 assertEQ(arg, 'hello'); 35 }); 36 37 bar((arg) => { 38 assertEQ(arg, 'goodbye'); 39 }); 40} 41