13af6ab5fSopenharmony_ci
23af6ab5fSopenharmony_ci/*
33af6ab5fSopenharmony_ci * Copyright (c) 2023-2024 Huawei Device Co., Ltd.
43af6ab5fSopenharmony_ci * Licensed under the Apache License, Version 2.0 (the "License");
53af6ab5fSopenharmony_ci * you may not use this file except in compliance with the License.
63af6ab5fSopenharmony_ci * You may obtain a copy of the License at
73af6ab5fSopenharmony_ci *
83af6ab5fSopenharmony_ci * http://www.apache.org/licenses/LICENSE-2.0
93af6ab5fSopenharmony_ci *
103af6ab5fSopenharmony_ci * Unless required by applicable law or agreed to in writing, software
113af6ab5fSopenharmony_ci * distributed under the License is distributed on an "AS IS" BASIS,
123af6ab5fSopenharmony_ci * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
133af6ab5fSopenharmony_ci * See the License for the specific language governing permissions and
143af6ab5fSopenharmony_ci * limitations under the License.
153af6ab5fSopenharmony_ci */
163af6ab5fSopenharmony_ci
173af6ab5fSopenharmony_ciclass Bar {
183af6ab5fSopenharmony_ci    cb: (() => int) | undefined = () => { return 3 };
193af6ab5fSopenharmony_ci}
203af6ab5fSopenharmony_ci
213af6ab5fSopenharmony_cifunction foo(a: Int | null): (() => Int) | undefined {
223af6ab5fSopenharmony_ci    let cb: () => Int = () => { return a!; };
233af6ab5fSopenharmony_ci    return a != null ? cb : undefined;
243af6ab5fSopenharmony_ci}
253af6ab5fSopenharmony_ci
263af6ab5fSopenharmony_cifunction main(): void {
273af6ab5fSopenharmony_ci    let a = new Int(3);
283af6ab5fSopenharmony_ci    // assert foo(a)?.() == 3; // bug
293af6ab5fSopenharmony_ci    assert foo(a)?.() == a;
303af6ab5fSopenharmony_ci
313af6ab5fSopenharmony_ci    assert foo(null)?.() == null;
323af6ab5fSopenharmony_ci    assert null == foo(null)?.();
333af6ab5fSopenharmony_ci
343af6ab5fSopenharmony_ci    assert foo(null)?.() == undefined;
353af6ab5fSopenharmony_ci    assert undefined == foo(null)?.();
363af6ab5fSopenharmony_ci
373af6ab5fSopenharmony_ci    assert new Int(3) != foo(null)?.();
383af6ab5fSopenharmony_ci
393af6ab5fSopenharmony_ci    let b = new Bar();
403af6ab5fSopenharmony_ci    assert b.cb?.() == 3;
413af6ab5fSopenharmony_ci    b.cb = undefined;
423af6ab5fSopenharmony_ci    assert b.cb?.() == undefined;
433af6ab5fSopenharmony_ci}
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