1 2/* 3 * Copyright (c) 2025 Huawei Device Co., Ltd. 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17export interface Thunk { 18 clean(): void 19} 20 21interface FinalizationRegistry { 22 register(target: object, value: any, token?: object): void; 23 unregister(token: object): void; 24} 25 26interface FinalizationRegistryConstructor { 27 readonly prototype: FinalizationRegistry; 28 new(callback: (value: any) => void): FinalizationRegistry; 29} 30 31declare const FinalizationRegistry: FinalizationRegistryConstructor 32 33const registry = new FinalizationRegistry((thunk: Thunk) => { 34 thunk.clean() 35}) 36 37export function finalizerRegister(target: object, thunk: object) { 38 registry.register(target, thunk) 39} 40 41export function finalizerUnregister(target: object) { 42 registry.unregister(target) 43} 44