1/* 2 * Copyright (c) 2024 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 16declare class A { 17 [index] : string 18} 19 20function main() { 21 let a : A = new A(); 22} 23 24/* @@? 17:11 Error SyntaxError: Index type expected in index signature */ 25/* @@? 17:13 Error SyntaxError: Index type must be number in index signature */ 26/* @@? 17:15 Error SyntaxError: ] expected in index signature */ 27/* @@? 18:1 Error SyntaxError: An index signature must have a type annotation. */ 28/* @@? 20:1 Error SyntaxError: Return type of index signature from exported class or interface need to be identifier */ 29