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- // shim for using process in browser
- // based off https://github.com/defunctzombie/node-process/blob/master/browser.js
- function defaultSetTimout() {
- throw new Error('setTimeout has not been defined');
- }
- function defaultClearTimeout () {
- throw new Error('clearTimeout has not been defined');
- }
- var cachedSetTimeout = defaultSetTimout;
- var cachedClearTimeout = defaultClearTimeout;
- if (typeof global.setTimeout === 'function') {
- cachedSetTimeout = setTimeout;
- }
- if (typeof global.clearTimeout === 'function') {
- cachedClearTimeout = clearTimeout;
- }
- function runTimeout(fun) {
- if (cachedSetTimeout === setTimeout) {
- //normal enviroments in sane situations
- return setTimeout(fun, 0);
- }
- // if setTimeout wasn't available but was latter defined
- if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
- cachedSetTimeout = setTimeout;
- return setTimeout(fun, 0);
- }
- try {
- // when when somebody has screwed with setTimeout but no I.E. maddness
- return cachedSetTimeout(fun, 0);
- } catch(e){
- try {
- // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
- return cachedSetTimeout.call(null, fun, 0);
- } catch(e){
- // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
- return cachedSetTimeout.call(this, fun, 0);
- }
- }
- }
- function runClearTimeout(marker) {
- if (cachedClearTimeout === clearTimeout) {
- //normal enviroments in sane situations
- return clearTimeout(marker);
- }
- // if clearTimeout wasn't available but was latter defined
- if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
- cachedClearTimeout = clearTimeout;
- return clearTimeout(marker);
- }
- try {
- // when when somebody has screwed with setTimeout but no I.E. maddness
- return cachedClearTimeout(marker);
- } catch (e){
- try {
- // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
- return cachedClearTimeout.call(null, marker);
- } catch (e){
- // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
- // Some versions of I.E. have different rules for clearTimeout vs setTimeout
- return cachedClearTimeout.call(this, marker);
- }
- }
- }
- var queue = [];
- var draining = false;
- var currentQueue;
- var queueIndex = -1;
- function cleanUpNextTick() {
- if (!draining || !currentQueue) {
- return;
- }
- draining = false;
- if (currentQueue.length) {
- queue = currentQueue.concat(queue);
- } else {
- queueIndex = -1;
- }
- if (queue.length) {
- drainQueue();
- }
- }
- function drainQueue() {
- if (draining) {
- return;
- }
- var timeout = runTimeout(cleanUpNextTick);
- draining = true;
- var len = queue.length;
- while(len) {
- currentQueue = queue;
- queue = [];
- while (++queueIndex < len) {
- if (currentQueue) {
- currentQueue[queueIndex].run();
- }
- }
- queueIndex = -1;
- len = queue.length;
- }
- currentQueue = null;
- draining = false;
- runClearTimeout(timeout);
- }
- function nextTick(fun) {
- var args = new Array(arguments.length - 1);
- if (arguments.length > 1) {
- for (var i = 1; i < arguments.length; i++) {
- args[i - 1] = arguments[i];
- }
- }
- queue.push(new Item(fun, args));
- if (queue.length === 1 && !draining) {
- runTimeout(drainQueue);
- }
- }
- // v8 likes predictible objects
- function Item(fun, array) {
- this.fun = fun;
- this.array = array;
- }
- Item.prototype.run = function () {
- this.fun.apply(null, this.array);
- };
- var title = 'browser';
- var platform = 'browser';
- var browser = true;
- var env = {};
- var argv = [];
- var version = ''; // empty string to avoid regexp issues
- var versions = {};
- var release = {};
- var config = {};
- function noop() {}
- var on = noop;
- var addListener = noop;
- var once = noop;
- var off = noop;
- var removeListener = noop;
- var removeAllListeners = noop;
- var emit = noop;
- function binding(name) {
- throw new Error('process.binding is not supported');
- }
- function cwd () { return '/' }
- function chdir (dir) {
- throw new Error('process.chdir is not supported');
- }function umask() { return 0; }
- // from https://github.com/kumavis/browser-process-hrtime/blob/master/index.js
- var performance = global.performance || {};
- var performanceNow =
- performance.now ||
- performance.mozNow ||
- performance.msNow ||
- performance.oNow ||
- performance.webkitNow ||
- function(){ return (new Date()).getTime() };
- // generate timestamp or delta
- // see http://nodejs.org/api/process.html#process_process_hrtime
- function hrtime(previousTimestamp){
- var clocktime = performanceNow.call(performance)*1e-3;
- var seconds = Math.floor(clocktime);
- var nanoseconds = Math.floor((clocktime%1)*1e9);
- if (previousTimestamp) {
- seconds = seconds - previousTimestamp[0];
- nanoseconds = nanoseconds - previousTimestamp[1];
- if (nanoseconds<0) {
- seconds--;
- nanoseconds += 1e9;
- }
- }
- return [seconds,nanoseconds]
- }
- var startTime = new Date();
- function uptime() {
- var currentTime = new Date();
- var dif = currentTime - startTime;
- return dif / 1000;
- }
- var browser$1 = {
- nextTick: nextTick,
- title: title,
- browser: browser,
- env: env,
- argv: argv,
- version: version,
- versions: versions,
- on: on,
- addListener: addListener,
- once: once,
- off: off,
- removeListener: removeListener,
- removeAllListeners: removeAllListeners,
- emit: emit,
- binding: binding,
- cwd: cwd,
- chdir: chdir,
- umask: umask,
- hrtime: hrtime,
- platform: platform,
- release: release,
- config: config,
- uptime: uptime
- };
- export default browser$1;
- export { addListener, argv, binding, browser, chdir, config, cwd, emit, env, hrtime, nextTick, off, on, once, platform, release, removeAllListeners, removeListener, title, umask, uptime, version, versions };
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