tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

LazyArg.ts (877B)

      1 /**
      2 * @license
      3 * Copyright 2022 Google Inc.
      4 * SPDX-License-Identifier: Apache-2.0
      5 */
      6 
      7 import type {JSHandle} from '../api/JSHandle.js';
      8 import type PuppeteerUtil from '../injected/injected.js';
      9 
     10 /**
     11 * @internal
     12 */
     13 export interface PuppeteerUtilWrapper {
     14  puppeteerUtil: Promise<JSHandle<PuppeteerUtil>>;
     15 }
     16 
     17 /**
     18 * @internal
     19 */
     20 export class LazyArg<T, Context = PuppeteerUtilWrapper> {
     21  static create = <T>(
     22    get: (context: PuppeteerUtilWrapper) => Promise<T> | T,
     23  ): T => {
     24    // We don't want to introduce LazyArg to the type system, otherwise we would
     25    // have to make it public.
     26    return new LazyArg(get) as unknown as T;
     27  };
     28 
     29  #get: (context: Context) => Promise<T> | T;
     30  private constructor(get: (context: Context) => Promise<T> | T) {
     31    this.#get = get;
     32  }
     33 
     34  async get(context: Context): Promise<T> {
     35    return await this.#get(context);
     36  }
     37 }