1/* 2 * Copyright (c) 2021-2025 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 16/*--- 17desc: 07.31 Lambda Expressions 18name: 07.expressions/7.32.lambda_expressions/incorrectVariableDeclaration 19tags: [negative, compile-only] 20---*/ 21 22type fooLambda = () => int 23 24function foo() { 25 let y: int = 1; 26 let x = () => { return y+1 }; // must be - let x: fooLambda = () => { return y+1 }; 27 console.log(x()); 28} 29