dispose-with-controller

A utility to manage and execute disposal callbacks, supporting both synchronous and asynchronous disposal.

Installation

You can install this package using npm:

npm install dispose-with-controller

Usage

Here's an example of how to use the dispose-with-controller:

import { disposeWithController } from "dispose-with-controller";

await using controller = disposeWithController();

// Adding a synchronous dispose callback
controller.add(() => {
  console.log("Synchronous cleanup");
});

// Adding an asynchronous dispose callback
controller.add(async () => {
  console.log("Asynchronous cleanup start");
  await new Promise((resolve) => setTimeout(resolve, 1000));
  console.log("Asynchronous cleanup end");
});

API Documentation

DisposeWithController

Class to manage and execute disposal callbacks, supporting both synchronous and asynchronous disposal.

Constructor

new DisposeWithController(init?: (OnDispose | OnAsyncDispose)[])

Initializes a new instance of the DisposeWithController class.

• Parameters:
  • init (optional): An array of disposal callbacks (either synchronous or asynchronous) to initialize the controller with.

Properties

disposed

Returns a boolean indicating whether the controller has been disposed.

• Type: boolean
• Description: True if the controller has been disposed; otherwise, false.

Methods

add(disposableOrAdopt: DisposableOrOnDispose): void

Adds a disposal callback or an object implementing dispose/asyncDispose methods to the controller.

• Parameters:

  • disposableOrAdopt: A disposal callback or an object with Symbol.dispose or Symbol.asyncDispose methods.

• Description: Adds a disposal callback to the controller. If the provided argument is a function, it is added directly to the disposes set. If it is an object implementing Symbol.dispose or Symbol.asyncDispose, the respective method is added to the disposes set as a callback function.

remove(disposableOrAdopt: DisposableOrOnDispose): void

Removes a disposal callback or an object implementing dispose/asyncDispose methods to the controller.

• Parameters:

  • disposableOrAdopt: A disposal callback or an object with Symbol.dispose or Symbol.asyncDispose methods.

• Description: Removes a disposal callback to the controller. If the provided argument is a function, it is added directly to the disposes set. If it is an object implementing Symbol.dispose or Symbol.asyncDispose, the respective method is added to the disposes set as a callback function.

dispose(): void

Synchronously executes all registered disposal callbacks. Alias for [Symbol.dispose]().

• Description: Calls the synchronous dispose method, executing all registered disposal callbacks.

asyncDispose(): Promise<void>

Asynchronously executes all registered disposal callbacks. Alias for [Symbol.asyncDispose]().

• Description: Calls the asynchronous dispose method, executing all registered disposal callbacks and awaiting their completion.

[Symbol.dispose](): void

Synchronously executes all registered disposal callbacks.

• Description: Iterates over the disposes set and calls each disposal callback. Sets the #disposed property to true after all callbacks are executed.

[Symbol.asyncDispose](): Promise<void>

Asynchronously executes all registered disposal callbacks, awaiting the completion of each.

• Description: Iterates over the disposes set and calls each disposal callback, awaiting their completion. Sets the #disposed property to true after all callbacks are executed.

disposeWithController

Creates a disposal controller that manages a set of disposal callbacks. These callbacks can be either synchronous or asynchronous. The controller provides methods to add disposal callbacks and to execute them synchronously or asynchronously.

Function

disposeWithController(init?: (OnDispose | OnAsyncDispose)[]): DisposeWithController

Creates a new DisposeWithController instance.

• Parameters:

  • init (optional): An array of disposal callbacks (either synchronous or asynchronous) to initialize the controller with.

• Returns:

  • DisposeWithController: A disposal controller instance.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Author

Jonathan Delgado hi@jon.soy (https://jon.soy)