The Tor Browser: toolkit/devtools/server/actors/pretty-print-worker.js@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; js-indent-level: 2; -*- */

     2 /* vim: set ft=javascript ts=2 et sw=2 tw=80: */

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     7 /**

     8  * This file is meant to be loaded as a ChromeWorker. It accepts messages which

     9  * have data of the form:

    10  *

    11  *     { id, url, indent, source }

    12  *

    13  * Where `id` is a unique ID to identify this request, `url` is the url of the

    14  * source being pretty printed, `indent` is the number of spaces to indent the

    15  * code by, and `source` is the source text.

    16  *

    17  * On success, the worker responds with a message of the form:

    18  *

    19  *     { id, code, mappings }

    20  *

    21  * Where `id` is the same unique ID from the request, `code` is the pretty

    22  * printed source text, and `mappings` is an array or source mappings from the

    23  * pretty printed code back to the ugly source text.

    24  *

    25  * In the case of an error, the worker responds with a message of the form:

    26  *

    27  *     { id, error }

    28  */

    30 importScripts("resource://gre/modules/devtools/acorn/acorn.js");

    31 importScripts("resource://gre/modules/devtools/source-map.js");

    32 importScripts("resource://gre/modules/devtools/pretty-fast.js");

    34 self.onmessage = (event) => {

    35   const { data: { id, url, indent, source } } = event;

    36   try {

    37     const prettified = prettyFast(source, {

    38       url: url,

    39       indent: " ".repeat(indent)

    40     });

    42     self.postMessage({

    43       id: id,

    44       code: prettified.code,

    45       mappings: prettified.map._mappings

    46     });

    47   } catch (e) {

    48     self.postMessage({

    49       id: id,

    50       error: e.message + "\n" + e.stack

    51     });

    52   }

    53 };

The Tor Browser / file revision