michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: module.metadata = {
michael@0:   "stability": "unstable"
michael@0: };
michael@0: 
michael@0: const { Cc, Ci, components: { ID: parseUUID } } = require('chrome');
michael@0: const { generateUUID } = Cc['@mozilla.org/uuid-generator;1'].
michael@0:                           getService(Ci.nsIUUIDGenerator);
michael@0: 
michael@0: // Returns `uuid`. If `id` is passed then it's parsed to `uuid` and returned
michael@0: // if not then new one is generated.
michael@0: exports.uuid = function uuid(id) id ? parseUUID(id) : generateUUID()