1/* 2 * Copyright (c) 2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16function f(a: boolean | undefined): string { 17 return a ? (a ? "true" : "false") : (a ? "true" : "false"); 18} 19 20assertEQ(f(undefined), "false"); 21assertEQ(f(true), "true"); 22// # NOTE: #22892 wrong type inferred, a frontend bug in smart casts 23// assertEQ(f(false), "false"); 24