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denoland-deno/ext/node/polyfills/timers.ts
Bartek Iwańczuk 25232fa4e8
fix(node): make sure "setImmediate" is not clamped to 4ms (#19213)
This commit changes implementation of "setImmediate"
from "node:timers" module to 0ms timer that is never
clamped to 4ms no matter how many nested calls there are.

Closes https://github.com/denoland/deno/issues/19034
2023-05-22 22:19:44 +00:00

66 lines
2 KiB
TypeScript

// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { setUnrefTimeout, Timeout } from "ext:deno_node/internal/timers.mjs";
import { validateFunction } from "ext:deno_node/internal/validators.mjs";
import { promisify } from "ext:deno_node/internal/util.mjs";
export { setUnrefTimeout } from "ext:deno_node/internal/timers.mjs";
import * as timers from "ext:deno_web/02_timers.js";
const clearTimeout_ = timers.clearTimeout;
const clearInterval_ = timers.clearInterval;
const setTimeoutUnclamped = timers.setTimeoutUnclamped;
export function setTimeout(
callback: (...args: unknown[]) => void,
timeout?: number,
...args: unknown[]
) {
validateFunction(callback, "callback");
return new Timeout(callback, timeout, args, false, true);
}
Object.defineProperty(setTimeout, promisify.custom, {
value: (timeout: number, ...args: unknown[]) => {
return new Promise((cb) => setTimeout(cb, timeout, ...args));
},
enumerable: true,
});
export function clearTimeout(timeout?: Timeout | number) {
if (timeout == null) {
return;
}
clearTimeout_(+timeout);
}
export function setInterval(
callback: (...args: unknown[]) => void,
timeout?: number,
...args: unknown[]
) {
validateFunction(callback, "callback");
return new Timeout(callback, timeout, args, true, true);
}
export function clearInterval(timeout?: Timeout | number | string) {
if (timeout == null) {
return;
}
clearInterval_(+timeout);
}
// TODO(bartlomieju): implement the 'NodeJS.Immediate' versions of the timers.
// https://github.com/DefinitelyTyped/DefinitelyTyped/blob/1163ead296d84e7a3c80d71e7c81ecbd1a130e9a/types/node/v12/globals.d.ts#L1120-L1131
export function setImmediate(
cb: (...args: unknown[]) => void,
...args: unknown[]
): Timeout {
return setTimeoutUnclamped(cb, 0, ...args);
}
export const clearImmediate = clearTimeout;
export default {
setTimeout,
clearTimeout,
setInterval,
clearInterval,
setImmediate,
setUnrefTimeout,
clearImmediate,
};