{"ast":null,"code":"// shim for using process in browser\nvar process = module.exports = {}; // cached from whatever global is present so that test runners that stub it\n// don't break things.  But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals.  It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n  throw new Error('setTimeout has not been defined');\n}\n\nfunction defaultClearTimeout() {\n  throw new Error('clearTimeout has not been defined');\n}\n\n(function () {\n  try {\n    if (typeof setTimeout === 'function') {\n      cachedSetTimeout = setTimeout;\n    } else {\n      cachedSetTimeout = defaultSetTimout;\n    }\n  } catch (e) {\n    cachedSetTimeout = defaultSetTimout;\n  }\n\n  try {\n    if (typeof clearTimeout === 'function') {\n      cachedClearTimeout = clearTimeout;\n    } else {\n      cachedClearTimeout = defaultClearTimeout;\n    }\n  } catch (e) {\n    cachedClearTimeout = defaultClearTimeout;\n  }\n})();\n\nfunction runTimeout(fun) {\n  if (cachedSetTimeout === setTimeout) {\n    //normal enviroments in sane situations\n    return setTimeout(fun, 0);\n  } // if setTimeout wasn't available but was latter defined\n\n\n  if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n    cachedSetTimeout = setTimeout;\n    return setTimeout(fun, 0);\n  }\n\n  try {\n    // when when somebody has screwed with setTimeout but no I.E. maddness\n    return cachedSetTimeout(fun, 0);\n  } catch (e) {\n    try {\n      // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n      return cachedSetTimeout.call(null, fun, 0);\n    } catch (e) {\n      // 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\n      return cachedSetTimeout.call(this, fun, 0);\n    }\n  }\n}\n\nfunction runClearTimeout(marker) {\n  if (cachedClearTimeout === clearTimeout) {\n    //normal enviroments in sane situations\n    return clearTimeout(marker);\n  } // if clearTimeout wasn't available but was latter defined\n\n\n  if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n    cachedClearTimeout = clearTimeout;\n    return clearTimeout(marker);\n  }\n\n  try {\n    // when when somebody has screwed with setTimeout but no I.E. maddness\n    return cachedClearTimeout(marker);\n  } catch (e) {\n    try {\n      // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally\n      return cachedClearTimeout.call(null, marker);\n    } catch (e) {\n      // 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.\n      // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n      return cachedClearTimeout.call(this, marker);\n    }\n  }\n}\n\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n  if (!draining || !currentQueue) {\n    return;\n  }\n\n  draining = false;\n\n  if (currentQueue.length) {\n    queue = currentQueue.concat(queue);\n  } else {\n    queueIndex = -1;\n  }\n\n  if (queue.length) {\n    drainQueue();\n  }\n}\n\nfunction drainQueue() {\n  if (draining) {\n    return;\n  }\n\n  var timeout = runTimeout(cleanUpNextTick);\n  draining = true;\n  var len = queue.length;\n\n  while (len) {\n    currentQueue = queue;\n    queue = [];\n\n    while (++queueIndex < len) {\n      if (currentQueue) {\n        currentQueue[queueIndex].run();\n      }\n    }\n\n    queueIndex = -1;\n    len = queue.length;\n  }\n\n  currentQueue = null;\n  draining = false;\n  runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n  var args = new Array(arguments.length - 1);\n\n  if (arguments.length > 1) {\n    for (var i = 1; i < arguments.length; i++) {\n      args[i - 1] = arguments[i];\n    }\n  }\n\n  queue.push(new Item(fun, args));\n\n  if (queue.length === 1 && !draining) {\n    runTimeout(drainQueue);\n  }\n}; // v8 likes predictible objects\n\n\nfunction Item(fun, array) {\n  this.fun = fun;\n  this.array = array;\n}\n\nItem.prototype.run = function () {\n  this.fun.apply(null, this.array);\n};\n\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\n\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) {\n  return [];\n};\n\nprocess.binding = function (name) {\n  throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () {\n  return '/';\n};\n\nprocess.chdir = function (dir) {\n  throw new Error('process.chdir is not supported');\n};\n\nprocess.umask = function () {\n  return 0;\n};","map":null,"metadata":{},"sourceType":"script"}