1/* 2 * Copyright (c) 2024-2025 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 foo<U, V>() { 17 let u:U // CTE 18 let v:V // CTE 19 20 console.log("What ? :-)", /* @@ label */u, /* @@ label1 */v) 21} 22 23 24 25function main(): void { 26 foo<string, string>() 27} 28 29/* @@@ label Error TypeError: Variable 'u' is used before being assigned. */ 30/* @@@ label1 Error TypeError: Variable 'v' is used before being assigned. */ 31