source: trip-planner-front/node_modules/jest-worker/build/workers/messageParent.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.1 KB
Line 
1'use strict';
2
3Object.defineProperty(exports, '__esModule', {
4 value: true
5});
6exports.default = messageParent;
7
8var _types = require('../types');
9
10/**
11 * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
12 *
13 * This source code is licensed under the MIT license found in the
14 * LICENSE file in the root directory of this source tree.
15 */
16const isWorkerThread = (() => {
17 try {
18 // `Require` here to support Node v10
19 const {isMainThread, parentPort} = require('worker_threads');
20
21 return !isMainThread && parentPort != null;
22 } catch {
23 return false;
24 }
25})();
26
27function messageParent(message, parentProcess = process) {
28 if (isWorkerThread) {
29 // `Require` here to support Node v10
30 const {parentPort} = require('worker_threads'); // ! is safe due to `null` check in `isWorkerThread`
31
32 parentPort.postMessage([_types.PARENT_MESSAGE_CUSTOM, message]);
33 } else if (typeof parentProcess.send === 'function') {
34 parentProcess.send([_types.PARENT_MESSAGE_CUSTOM, message]);
35 } else {
36 throw new Error('"messageParent" can only be used inside a worker');
37 }
38}
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