13af6ab5fSopenharmony_ci/* 23af6ab5fSopenharmony_ci * Copyright (c) 2023-2024 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_cilet b : Int = 10; 173af6ab5fSopenharmony_ci 183af6ab5fSopenharmony_cifunction foo(): Int { 193af6ab5fSopenharmony_ci b = 11; 203af6ab5fSopenharmony_ci return 12; 213af6ab5fSopenharmony_ci} 223af6ab5fSopenharmony_ci 233af6ab5fSopenharmony_cifunction main() : void { 243af6ab5fSopenharmony_ci let a : Int = 1; 253af6ab5fSopenharmony_ci let c = a ?? foo(); 263af6ab5fSopenharmony_ci assert(b == 10); 273af6ab5fSopenharmony_ci assert(c == 1); 283af6ab5fSopenharmony_ci 293af6ab5fSopenharmony_ci a = null; 303af6ab5fSopenharmony_ci c = a ?? b; 313af6ab5fSopenharmony_ci assert (c == 10); 323af6ab5fSopenharmony_ci 333af6ab5fSopenharmony_ci c = a ?? foo(); 343af6ab5fSopenharmony_ci assert (b == 11); 353af6ab5fSopenharmony_ci assert (c == 12); 363af6ab5fSopenharmony_ci 373af6ab5fSopenharmony_ci let d : Boolean = true; 383af6ab5fSopenharmony_ci let e : boolean = false; 393af6ab5fSopenharmony_ci let f = d ?? e; 403af6ab5fSopenharmony_ci assert (f == true); 413af6ab5fSopenharmony_ci} 42