/*
 * Copyright (c) 2024-2025 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.
 */

let a = 0;

function foo(exec?: () => void): void {
    exec?.();
    a += 1;
}

function bar() {
    foo() {
        a += 1;
        assertEQ(a, 1)
        foo() {
            a += 1;
            assertEQ(a, 2)
            foo();
        }
    }
}

export function main() {
    a = 0
    bar();
    assertEQ(a, 5)
}