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_citype funcType = () => String; 173af6ab5fSopenharmony_ci 183af6ab5fSopenharmony_cifunction getMelon(): String { return "melon" } 193af6ab5fSopenharmony_ci 203af6ab5fSopenharmony_cifunction dummy(): funcType | null { 213af6ab5fSopenharmony_ci return (() => { return "peach"; }) as funcType; // #15577 223af6ab5fSopenharmony_ci} 233af6ab5fSopenharmony_ci 243af6ab5fSopenharmony_cifunction foo(a: funcType | null) { 253af6ab5fSopenharmony_ci let fruit: String = a?.() ?? "apple"; 263af6ab5fSopenharmony_ci 273af6ab5fSopenharmony_ci let getPeach: funcType | null = dummy(); 283af6ab5fSopenharmony_ci fruit = getPeach?.() ?? "banana"; 293af6ab5fSopenharmony_ci assert(fruit == "peach"); 303af6ab5fSopenharmony_ci 313af6ab5fSopenharmony_ci fruit = getMelon() ?? "strawberry"; 323af6ab5fSopenharmony_ci assert(fruit == "melon"); 333af6ab5fSopenharmony_ci 343af6ab5fSopenharmony_ci let test = false; 353af6ab5fSopenharmony_ci try { 363af6ab5fSopenharmony_ci fruit = a!(); 373af6ab5fSopenharmony_ci } catch (e: NullPointerError) { 383af6ab5fSopenharmony_ci test = true; 393af6ab5fSopenharmony_ci } 403af6ab5fSopenharmony_ci 413af6ab5fSopenharmony_ci assert(test == true); 423af6ab5fSopenharmony_ci} 433af6ab5fSopenharmony_ci 443af6ab5fSopenharmony_cifunction main(): void { 453af6ab5fSopenharmony_ci let getFruit = null; 463af6ab5fSopenharmony_ci foo(getFruit); 473af6ab5fSopenharmony_ci 483af6ab5fSopenharmony_ci let getPeach: funcType | null = dummy(); 493af6ab5fSopenharmony_ci let b = getPeach?.(); 503af6ab5fSopenharmony_ci assert(b == "peach"); 513af6ab5fSopenharmony_ci} 52