iopa/src/util/disposable.ts

API-first, Internet of Things (IoT) stack for Typescript, official implementation of the Internet Open Protocols Alliance (IOPA) reference pattern

/*
 * Internet Open Protocol Abstraction (IOPA)
 * Copyright (c) 2016-2022 Internet Open Protocols Alliance
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import type { Disposer, IDisposable } from '@iopa/types'

export class Disposable implements IDisposable {
  private _disposer: Disposer

  public constructor(disposer: Disposer) {
    this._disposer = disposer
  }

  public dispose(): void {
    this._disposer.apply(this._disposer)
  }
}

export class DisposablesComposite {
  private _disposables: Set<Disposable>

  public constructor() {
    this._disposables = new Set()
  }

  public add(disposable: Disposable): Disposable {
    this._disposables.add(disposable)
    return disposable
  }

  public dispose(): void {
    this._disposables.forEach((disposable) => {
      disposable.dispose.apply(disposable)
    })
  }
}