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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
import { deferred } from "./deferred.ts";
export class DeadlineError extends Error {  constructor() {    super("Deadline");    this.name = "DeadlineError";  }}
/** * Create a promise which will be rejected with {@linkcode DeadlineError} when a given delay is exceeded. * * @example * ```typescript * import { deadline } from "https://deno.land/std@$STD_VERSION/async/deadline.ts"; * import { delay } from "https://deno.land/std@$STD_VERSION/async/delay.ts"; * * const delayedPromise = delay(1000); * // Below throws `DeadlineError` after 10 ms * const result = await deadline(delayedPromise, 10); * ``` */export function deadline<T>(p: Promise<T>, delay: number): Promise<T> {  const d = deferred<never>();  const t = setTimeout(() => d.reject(new DeadlineError()), delay);  return Promise.race([p, d]).finally(() => clearTimeout(t));}