13af6ab5fSopenharmony_ci/* 23af6ab5fSopenharmony_ci * Copyright (c) 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_cifunction main() { 173af6ab5fSopenharmony_ci let x1 = (): int | undefined => { return 5; }(); 183af6ab5fSopenharmony_ci let y1: int = x1 ?? 3.1; 193af6ab5fSopenharmony_ci assert (y1 == 5); 203af6ab5fSopenharmony_ci 213af6ab5fSopenharmony_ci let x2 = (): int | undefined => { return undefined; }(); 223af6ab5fSopenharmony_ci let y2: int = x2 ?? 3.1; 233af6ab5fSopenharmony_ci assert (y2 == 3); 243af6ab5fSopenharmony_ci 253af6ab5fSopenharmony_ci let x3 = (): number | undefined => { return 5; }(); 263af6ab5fSopenharmony_ci let y3: number = x3 ?? 3; 273af6ab5fSopenharmony_ci assert (y3 == 5.0); 283af6ab5fSopenharmony_ci 293af6ab5fSopenharmony_ci let x4 = (): number | undefined => { return undefined; }(); 303af6ab5fSopenharmony_ci let y4: number = x4 ?? 3; 313af6ab5fSopenharmony_ci assert (y4 == 3.0); 323af6ab5fSopenharmony_ci} 33