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 16class DataNode<Data> { 17 private data: Data|undefined = undefined 18 static attach<Data>(): int { 19 const node = new DataNode<Data>() 20 node.data = undefined 21 return 1 22 } 23} 24 25function main() { 26 assertEQ(DataNode.attach<Object>(), 1) 27} 28