langium/src/utils/disposable.ts

A language engineering tool for the Language Server Protocol

/******************************************************************************
 * Copyright 2021 TypeFox GmbH
 * This program and the accompanying materials are made available under the
 * terms of the MIT License, which is available in the project root.
 ******************************************************************************/

export interface Disposable {
    /**
     * Dispose this object.
     */
    dispose(): void;
}

export interface AsyncDisposable {
    /**
     * Dispose this object.
     */
    dispose(): Promise<void>;
}

export namespace Disposable {
    export function create(callback: () => Promise<void>): AsyncDisposable;
    export function create(callback: () => void): Disposable;
    export function create(callback: () => void | Promise<void>): Disposable | AsyncDisposable {
        return {
            dispose: async () => await callback()
        };
    }
}