# Source: Task.js

    /**
     * @license
     * Copyright 2020 Roberto Luiz Souza Monteiro,
     *                Renata Souza Barreto,
     *                Hernane Borges de Barros Pereira.
     *
     * Licensed under the Apache License, Version 2.0 (the 'License');
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *   http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an 'AS IS' BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

    /**
     * MaiaScript multi-task library.
     * @class
     */
    function Task() {
        init();

        /**
         * Creates the attributes of the class.
         */
        function init() {
            // Class attributes goes here.
        }

        /**
         * Tests whether multi-tasking is supported in the browser.
         * @return {boolean}  Returns true if supported and false otherwise.
         */
        this.isSupported = function() {
            var res = false;
            if (typeof(Worker) != "undefined") {
                res = true;
            }
            return res;
        }

        /**
         * Creates a new parallel task.
         * The thread will be created in a new scope.
         * For communication with the master thread, the postMessage function (method) and onmessage event must be used.
         * To finish executing the thread, the terminate method must be executed.
         * To import a script from within the thread, you can use the importScripts function.
         * @param {object}   func - Function that will be executed on a new thread.
         * @return {object}  An object to interact with the created thread.
         */
        this.new = function(func) {
            var worker;
            if (typeof(Worker) != "undefined") {
                var script = func.toString().match(/^\s*function\s*\(\s*\)\s*\{(([\s\S](?!\}$))*[\s\S])/)[1];
                var blob = new Blob([script], {type:'text/javascript'});
                if (typeof(window) != "undefined") {
                    var blobURL = window.URL.createObjectURL(blob);
                } else {
                    var blobURL = 'data:,' + script;
                }
                worker = new Worker(blobURL);
            }
            return worker;
        }
    }

    task = new Task();

    if (typeof process !== 'undefined') {
        try {
            var Worker = require('web-worker');
        } catch (e) {
            console.error(e.message);
        }
        try {
            var Blob = require('cross-blob');
        } catch (e) {
            console.error(e.message);
        }
    }