/*
 * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

class Fruit {
}

let x:int = 1;

function Fruit.foo(cb: ()=>void): int {
    cb();
    return 3;
}

function foo(cb: ()=>void): int {
    cb();
    return 1;
}

function main() {
    x = 1;
    let fruit = new Fruit();
    let res:int = fruit.foo() { x++ };
    assert res == 3 : "expected: " + 3 + " actual: " + res;
    assert x == 2 : "expected: " + 2 + " actual: " + x;
}