tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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utils.js (1076B)

      1 /* This Source Code Form is subject to the terms of the Mozilla Public
      2 * License, v. 2.0. If a copy of the MPL was not distributed with this
      3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      4 
      5 "use strict";
      6 
      7 /**
      8 * Find Placeholders in the template and save them along with their
      9 * paths.
     10 */
     11 function findPlaceholders(template, constructor, path = [], placeholders = []) {
     12  if (!template || typeof template != "object") {
     13    return placeholders;
     14  }
     15 
     16  if (template instanceof constructor) {
     17    placeholders.push({ placeholder: template, path: [...path] });
     18    return placeholders;
     19  }
     20 
     21  for (const name in template) {
     22    path.push(name);
     23    findPlaceholders(template[name], constructor, path, placeholders);
     24    path.pop();
     25  }
     26 
     27  return placeholders;
     28 }
     29 
     30 exports.findPlaceholders = findPlaceholders;
     31 
     32 /**
     33 * Get the value at a given path, or undefined if not found.
     34 */
     35 function getPath(obj, path) {
     36  for (const name of path) {
     37    if (!(name in obj)) {
     38      return undefined;
     39    }
     40    obj = obj[name];
     41  }
     42  return obj;
     43 }
     44 exports.getPath = getPath;