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strict'\r\n\r\nexports.byteLength = byteLength\r\nexports.toByteArray = toByteArray\r\nexports.fromByteArray = fromByteArray\r\n\r\nvar lookup = []\r\nvar revLookup = []\r\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\r\n\r\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\r\nfor (var i = 0, len = code.length; i < len; ++i) {\r\n lookup[i] = code[i]\r\n revLookup[code.charCodeAt(i)] = i\r\n}\r\n\r\n// Support decoding URL-safe base64 strings, as Node.js does.\r\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\r\nrevLookup['-'.charCodeAt(0)] = 62\r\nrevLookup['_'.charCodeAt(0)] = 63\r\n\r\nfunction getLens (b64) {\r\n var len = b64.length\r\n\r\n if (len % 4 > 0) {\r\n throw new Error('Invalid string. Length must be a multiple of 4')\r\n }\r\n\r\n // Trim off extra bytes after placeholder bytes are found\r\n // See: https://github.com/beatgammit/base64-js/issues/42\r\n var validLen = b64.indexOf('=')\r\n if (validLen === -1) validLen = len\r\n\r\n var placeHoldersLen = validLen === len\r\n ? 0\r\n : 4 - (validLen % 4)\r\n\r\n return [validLen, placeHoldersLen]\r\n}\r\n\r\n// base64 is 4/3 + up to two characters of the original data\r\nfunction byteLength (b64) {\r\n var lens = getLens(b64)\r\n var validLen = lens[0]\r\n var placeHoldersLen = lens[1]\r\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\r\n}\r\n\r\nfunction _byteLength (b64, validLen, placeHoldersLen) {\r\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\r\n}\r\n\r\nfunction toByteArray (b64) {\r\n var tmp\r\n var lens = getLens(b64)\r\n var validLen = lens[0]\r\n var placeHoldersLen = lens[1]\r\n\r\n var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\r\n\r\n var curByte = 0\r\n\r\n // if there are placeholders, only get up to the last complete 4 chars\r\n var len = placeHoldersLen > 0\r\n ? validLen - 4\r\n : validLen\r\n\r\n var i\r\n for (i = 0; i < len; i += 4) {\r\n tmp =\r\n (revLookup[b64.charCodeAt(i)] << 18) |\r\n (revLookup[b64.charCodeAt(i + 1)] << 12) |\r\n (revLookup[b64.charCodeAt(i + 2)] << 6) |\r\n revLookup[b64.charCodeAt(i + 3)]\r\n arr[curByte++] = (tmp >> 16) & 0xFF\r\n arr[curByte++] = (tmp >> 8) & 0xFF\r\n arr[curByte++] = tmp & 0xFF\r\n }\r\n\r\n if (placeHoldersLen === 2) {\r\n tmp =\r\n (revLookup[b64.charCodeAt(i)] << 2) |\r\n (revLookup[b64.charCodeAt(i + 1)] >> 4)\r\n arr[curByte++] = tmp & 0xFF\r\n }\r\n\r\n if (placeHoldersLen === 1) {\r\n tmp =\r\n (revLookup[b64.charCodeAt(i)] << 10) |\r\n (revLookup[b64.charCodeAt(i + 1)] << 4) |\r\n (revLookup[b64.charCodeAt(i + 2)] >> 2)\r\n arr[curByte++] = (tmp >> 8) & 0xFF\r\n arr[curByte++] = tmp & 0xFF\r\n }\r\n\r\n return arr\r\n}\r\n\r\nfunction tripletToBase64 (num) {\r\n return lookup[num >> 18 & 0x3F] +\r\n lookup[num >> 12 & 0x3F] +\r\n lookup[num >> 6 & 0x3F] +\r\n lookup[num & 0x3F]\r\n}\r\n\r\nfunction encodeChunk (uint8, start, end) {\r\n var tmp\r\n var output = []\r\n for (var i = start; i < end; i += 3) {\r\n tmp =\r\n ((uint8[i] << 16) & 0xFF0000) +\r\n ((uint8[i + 1] << 8) & 0xFF00) +\r\n (uint8[i + 2] & 0xFF)\r\n output.push(tripletToBase64(tmp))\r\n }\r\n return output.join('')\r\n}\r\n\r\nfunction fromByteArray (uint8) {\r\n var tmp\r\n var len = uint8.length\r\n var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\r\n var parts = []\r\n var maxChunkLength = 16383 // must be multiple of 3\r\n\r\n // go through the array every three bytes, we'll deal with trailing stuff later\r\n for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\r\n parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))\r\n }\r\n\r\n // pad the end with zeros, but make sure to not forget the extra bytes\r\n if (extraBytes === 1) {\r\n tmp = uint8[len - 1]\r\n parts.push(\r\n lookup[tmp >> 2] +\r\n lookup[(tmp << 4) & 0x3F] +\r\n '=='\r\n )\r\n } else if (extraBytes === 2) {\r\n tmp = (uint8[len - 2] << 8) + uint8[len - 1]\r\n parts.push(\r\n lookup[tmp >> 10] +\r\n lookup[(tmp >> 4) & 0x3F] +\r\n lookup[(tmp << 2) & 0x3F] +\r\n '='\r\n )\r\n }\r\n\r\n return parts.join('')\r\n}\r\n","import * as process from 'process';\r\n// import('buffer').then(({Buffer}) => {global.Buffer = Buffer;})\r\n\r\n/**\r\n * This file includes polyfills needed by Angular and is loaded before the app.\r\n * You can add your own extra polyfills to this file.\r\n *\r\n * This file is divided into 2 sections:\r\n * 1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.\r\n * 2. Application imports. Files imported after ZoneJS that should be loaded before your main\r\n * file.\r\n *\r\n * The current setup is for so-called \"evergreen\" browsers; the last versions of browsers that\r\n * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),\r\n * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.\r\n *\r\n * Learn more in https://angular.io/guide/browser-support\r\n */\r\n\r\n/***************************************************************************************************\r\n * BROWSER POLYFILLS\r\n */\r\n\r\n/** IE10 and IE11 requires the following for NgClass support on SVG elements */\r\n// import 'classlist.js'; // Run `npm install --save classlist.js`.\r\n\r\n/**\r\n * Web Animations `@angular/platform-browser/animations`\r\n * Only required if AnimationBuilder is used within the application and using IE/Edge or Safari.\r\n * Standard animation support in Angular DOES NOT require any polyfills (as of Angular 6.0).\r\n */\r\n// import 'web-animations-js'; // Run `npm install --save web-animations-js`.\r\n\r\n/**\r\n * By default, zone.js will patch all possible macroTask and DomEvents\r\n * user can disable parts of macroTask/DomEvents patch by setting following flags\r\n * because those flags need to be set before `zone.js` being loaded, and webpack\r\n * will put import in the top of bundle, so user need to create a separate file\r\n * in this directory (for example: zone-flags.ts), and put the following flags\r\n * into that file, and then add the following code before importing zone.js.\r\n * import './zone-flags';\r\n *\r\n * The flags allowed in zone-flags.ts are listed here.\r\n *\r\n * The following flags will work for all browsers.\r\n *\r\n * (window as any).__Zone_disable_requestAnimationFrame = true; // disable patch requestAnimationFrame\r\n * (window as any).__Zone_disable_on_property = true; // disable patch onProperty such as onclick\r\n * (window as any).__zone_symbol__UNPATCHED_EVENTS = ['scroll', 'mousemove']; // disable patch specified eventNames\r\n *\r\n * in IE/Edge developer tools, the addEventListener will also be wrapped by zone.js\r\n * with the following flag, it will bypass `zone.js` patch for IE/Edge\r\n *\r\n * (window as any).__Zone_enable_cross_context_check = true;\r\n *\r\n */\r\n\r\n/***************************************************************************************************\r\n * Zone JS is required by default for Angular itself.\r\n */\r\nimport 'zone.js/dist/zone'; // Included with Angular CLI.\r\n\r\n\r\n/***************************************************************************************************\r\n * APPLICATION IMPORTS\r\n */\r\n declare var require: any;\r\n declare var global: any;\r\n \r\n (window as any).global = window;\r\n // @ts-ignore\r\n window.Buffer = window.Buffer || require('buffer').Buffer;\r\n (window as any).process = {\r\n version: ''\r\n };\r\n","/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh */\r\nexports.read = function (buffer, offset, isLE, mLen, nBytes) {\r\n var e, m\r\n var eLen = (nBytes * 8) - mLen - 1\r\n var eMax = (1 << eLen) - 1\r\n var eBias = eMax >> 1\r\n var nBits = -7\r\n var i = isLE ? (nBytes - 1) : 0\r\n var d = isLE ? -1 : 1\r\n var s = buffer[offset + i]\r\n\r\n i += d\r\n\r\n e = s & ((1 << (-nBits)) - 1)\r\n s >>= (-nBits)\r\n nBits += eLen\r\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\r\n\r\n m = e & ((1 << (-nBits)) - 1)\r\n e >>= (-nBits)\r\n nBits += mLen\r\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\r\n\r\n if (e === 0) {\r\n e = 1 - eBias\r\n } else if (e === eMax) {\r\n return m ? NaN : ((s ? -1 : 1) * Infinity)\r\n } else {\r\n m = m + Math.pow(2, mLen)\r\n e = e - eBias\r\n }\r\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\r\n}\r\n\r\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\r\n var e, m, c\r\n var eLen = (nBytes * 8) - mLen - 1\r\n var eMax = (1 << eLen) - 1\r\n var eBias = eMax >> 1\r\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\r\n var i = isLE ? 0 : (nBytes - 1)\r\n var d = isLE ? 1 : -1\r\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\r\n\r\n value = Math.abs(value)\r\n\r\n if (isNaN(value) || value === Infinity) {\r\n m = isNaN(value) ? 1 : 0\r\n e = eMax\r\n } else {\r\n e = Math.floor(Math.log(value) / Math.LN2)\r\n if (value * (c = Math.pow(2, -e)) < 1) {\r\n e--\r\n c *= 2\r\n }\r\n if (e + eBias >= 1) {\r\n value += rt / c\r\n } else {\r\n value += rt * Math.pow(2, 1 - eBias)\r\n }\r\n if (value * c >= 2) {\r\n e++\r\n c /= 2\r\n }\r\n\r\n if (e + eBias >= eMax) {\r\n m = 0\r\n e = eMax\r\n } else if (e + eBias >= 1) {\r\n m = ((value * c) - 1) * Math.pow(2, mLen)\r\n e = e + eBias\r\n } else {\r\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\r\n e = 0\r\n }\r\n }\r\n\r\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\r\n\r\n e = (e << mLen) | m\r\n eLen += mLen\r\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\r\n\r\n buffer[offset + i - d] |= s * 128\r\n}\r\n","/**\r\n* @license Angular v9.1.0-next.4+61.sha-e552591.with-local-changes\r\n* (c) 2010-2020 Google LLC. https://angular.io/\r\n* License: MIT\r\n*/\r\n(function (factory) {\r\n typeof define === 'function' && define.amd ? define(factory) :\r\n factory();\r\n}((function () { 'use strict';\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n const Zone$1 = (function (global) {\r\n const performance = global['performance'];\r\n function mark(name) { performance && performance['mark'] && performance['mark'](name); }\r\n function performanceMeasure(name, label) {\r\n performance && performance['measure'] && performance['measure'](name, label);\r\n }\r\n mark('Zone');\r\n // Initialize before it's accessed below.\r\n // __Zone_symbol_prefix global can be used to override the default zone\r\n // symbol prefix with a custom one if needed.\r\n const symbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';\r\n function __symbol__(name) { return symbolPrefix + name; }\r\n const checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;\r\n if (global['Zone']) {\r\n // if global['Zone'] already exists (maybe zone.js was already loaded or\r\n // some other lib also registered a global object named Zone), we may need\r\n // to throw an error, but sometimes user may not want this error.\r\n // For example,\r\n // we have two web pages, page1 includes zone.js, page2 doesn't.\r\n // and the 1st time user load page1 and page2, everything work fine,\r\n // but when user load page2 again, error occurs because global['Zone'] already exists.\r\n // so we add a flag to let user choose whether to throw this error or not.\r\n // By default, if existing Zone is from zone.js, we will not throw the error.\r\n if (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function') {\r\n throw new Error('Zone already loaded.');\r\n }\r\n else {\r\n return global['Zone'];\r\n }\r\n }\r\n class Zone {\r\n constructor(parent, zoneSpec) {\r\n this._parent = parent;\r\n this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '';\r\n this._properties = zoneSpec && zoneSpec.properties || {};\r\n this._zoneDelegate =\r\n new ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);\r\n }\r\n static assertZonePatched() {\r\n if (global['Promise'] !== patches['ZoneAwarePromise']) {\r\n throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' +\r\n 'has been overwritten.\\n' +\r\n 'Most likely cause is that a Promise polyfill has been loaded ' +\r\n 'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' +\r\n 'If you must load one, do so before loading zone.js.)');\r\n }\r\n }\r\n static get root() {\r\n let zone = Zone.current;\r\n while (zone.parent) {\r\n zone = zone.parent;\r\n }\r\n return zone;\r\n }\r\n static get current() { return _currentZoneFrame.zone; }\r\n static get currentTask() { return _currentTask; }\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n static __load_patch(name, fn) {\r\n if (patches.hasOwnProperty(name)) {\r\n if (checkDuplicate) {\r\n throw Error('Already loaded patch: ' + name);\r\n }\r\n }\r\n else if (!global['__Zone_disable_' + name]) {\r\n const perfName = 'Zone:' + name;\r\n mark(perfName);\r\n patches[name] = fn(global, Zone, _api);\r\n performanceMeasure(perfName, perfName);\r\n }\r\n }\r\n get parent() { return this._parent; }\r\n get name() { return this._name; }\r\n get(key) {\r\n const zone = this.getZoneWith(key);\r\n if (zone)\r\n return zone._properties[key];\r\n }\r\n getZoneWith(key) {\r\n let current = this;\r\n while (current) {\r\n if (current._properties.hasOwnProperty(key)) {\r\n return current;\r\n }\r\n current = current._parent;\r\n }\r\n return null;\r\n }\r\n fork(zoneSpec) {\r\n if (!zoneSpec)\r\n throw new Error('ZoneSpec required!');\r\n return this._zoneDelegate.fork(this, zoneSpec);\r\n }\r\n wrap(callback, source) {\r\n if (typeof callback !== 'function') {\r\n throw new Error('Expecting function got: ' + callback);\r\n }\r\n const _callback = this._zoneDelegate.intercept(this, callback, source);\r\n const zone = this;\r\n return function () {\r\n return zone.runGuarded(_callback, this, arguments, source);\r\n };\r\n }\r\n run(callback, applyThis, applyArgs, source) {\r\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\r\n try {\r\n return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\r\n }\r\n finally {\r\n _currentZoneFrame = _currentZoneFrame.parent;\r\n }\r\n }\r\n runGuarded(callback, applyThis = null, applyArgs, source) {\r\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\r\n try {\r\n try {\r\n return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);\r\n }\r\n catch (error) {\r\n if (this._zoneDelegate.handleError(this, error)) {\r\n throw error;\r\n }\r\n }\r\n }\r\n finally {\r\n _currentZoneFrame = _currentZoneFrame.parent;\r\n }\r\n }\r\n runTask(task, applyThis, applyArgs) {\r\n if (task.zone != this) {\r\n throw new Error('A task can only be run in the zone of creation! (Creation: ' +\r\n (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\r\n }\r\n // https://github.com/angular/zone.js/issues/778, sometimes eventTask\r\n // will run in notScheduled(canceled) state, we should not try to\r\n // run such kind of task but just return\r\n if (task.state === notScheduled && (task.type === eventTask || task.type === macroTask)) {\r\n return;\r\n }\r\n const reEntryGuard = task.state != running;\r\n reEntryGuard && task._transitionTo(running, scheduled);\r\n task.runCount++;\r\n const previousTask = _currentTask;\r\n _currentTask = task;\r\n _currentZoneFrame = { parent: _currentZoneFrame, zone: this };\r\n try {\r\n if (task.type == macroTask && task.data && !task.data.isPeriodic) {\r\n task.cancelFn = undefined;\r\n }\r\n try {\r\n return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);\r\n }\r\n catch (error) {\r\n if (this._zoneDelegate.handleError(this, error)) {\r\n throw error;\r\n }\r\n }\r\n }\r\n finally {\r\n // if the task's state is notScheduled or unknown, then it has already been cancelled\r\n // we should not reset the state to scheduled\r\n if (task.state !== notScheduled && task.state !== unknown) {\r\n if (task.type == eventTask || (task.data && task.data.isPeriodic)) {\r\n reEntryGuard && task._transitionTo(scheduled, running);\r\n }\r\n else {\r\n task.runCount = 0;\r\n this._updateTaskCount(task, -1);\r\n reEntryGuard &&\r\n task._transitionTo(notScheduled, running, notScheduled);\r\n }\r\n }\r\n _currentZoneFrame = _currentZoneFrame.parent;\r\n _currentTask = previousTask;\r\n }\r\n }\r\n scheduleTask(task) {\r\n if (task.zone && task.zone !== this) {\r\n // check if the task was rescheduled, the newZone\r\n // should not be the children of the original zone\r\n let newZone = this;\r\n while (newZone) {\r\n if (newZone === task.zone) {\r\n throw Error(`can not reschedule task to ${this.name} which is descendants of the original zone ${task.zone.name}`);\r\n }\r\n newZone = newZone.parent;\r\n }\r\n }\r\n task._transitionTo(scheduling, notScheduled);\r\n const zoneDelegates = [];\r\n task._zoneDelegates = zoneDelegates;\r\n task._zone = this;\r\n try {\r\n task = this._zoneDelegate.scheduleTask(this, task);\r\n }\r\n catch (err) {\r\n // should set task's state to unknown when scheduleTask throw error\r\n // because the err may from reschedule, so the fromState maybe notScheduled\r\n task._transitionTo(unknown, scheduling, notScheduled);\r\n // TODO: @JiaLiPassion, should we check the result from handleError?\r\n this._zoneDelegate.handleError(this, err);\r\n throw err;\r\n }\r\n if (task._zoneDelegates === zoneDelegates) {\r\n // we have to check because internally the delegate can reschedule the task.\r\n this._updateTaskCount(task, 1);\r\n }\r\n if (task.state == scheduling) {\r\n task._transitionTo(scheduled, scheduling);\r\n }\r\n return task;\r\n }\r\n scheduleMicroTask(source, callback, data, customSchedule) {\r\n return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));\r\n }\r\n scheduleMacroTask(source, callback, data, customSchedule, customCancel) {\r\n return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));\r\n }\r\n scheduleEventTask(source, callback, data, customSchedule, customCancel) {\r\n return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));\r\n }\r\n cancelTask(task) {\r\n if (task.zone != this)\r\n throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' +\r\n (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');\r\n task._transitionTo(canceling, scheduled, running);\r\n try {\r\n this._zoneDelegate.cancelTask(this, task);\r\n }\r\n catch (err) {\r\n // if error occurs when cancelTask, transit the state to unknown\r\n task._transitionTo(unknown, canceling);\r\n this._zoneDelegate.handleError(this, err);\r\n throw err;\r\n }\r\n this._updateTaskCount(task, -1);\r\n task._transitionTo(notScheduled, canceling);\r\n task.runCount = 0;\r\n return task;\r\n }\r\n _updateTaskCount(task, count) {\r\n const zoneDelegates = task._zoneDelegates;\r\n if (count == -1) {\r\n task._zoneDelegates = null;\r\n }\r\n for (let i = 0; i < zoneDelegates.length; i++) {\r\n zoneDelegates[i]._updateTaskCount(task.type, count);\r\n }\r\n }\r\n }\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n Zone.__symbol__ = __symbol__;\r\n const DELEGATE_ZS = {\r\n name: '',\r\n onHasTask: (delegate, _, target, hasTaskState) => delegate.hasTask(target, hasTaskState),\r\n onScheduleTask: (delegate, _, target, task) => delegate.scheduleTask(target, task),\r\n onInvokeTask: (delegate, _, target, task, applyThis, applyArgs) => delegate.invokeTask(target, task, applyThis, applyArgs),\r\n onCancelTask: (delegate, _, target, task) => delegate.cancelTask(target, task)\r\n };\r\n class ZoneDelegate {\r\n constructor(zone, parentDelegate, zoneSpec) {\r\n this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };\r\n this.zone = zone;\r\n this._parentDelegate = parentDelegate;\r\n this._forkZS =\r\n zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);\r\n this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);\r\n this._forkCurrZone =\r\n zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate._forkCurrZone);\r\n this._interceptZS =\r\n zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);\r\n this._interceptDlgt =\r\n zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);\r\n this._interceptCurrZone =\r\n zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate._interceptCurrZone);\r\n this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);\r\n this._invokeDlgt =\r\n zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);\r\n this._invokeCurrZone =\r\n zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate._invokeCurrZone);\r\n this._handleErrorZS =\r\n zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);\r\n this._handleErrorDlgt = zoneSpec &&\r\n (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);\r\n this._handleErrorCurrZone =\r\n zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate._handleErrorCurrZone);\r\n this._scheduleTaskZS =\r\n zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);\r\n this._scheduleTaskDlgt = zoneSpec &&\r\n (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);\r\n this._scheduleTaskCurrZone = zoneSpec &&\r\n (zoneSpec.onScheduleTask ? this.zone : parentDelegate._scheduleTaskCurrZone);\r\n this._invokeTaskZS =\r\n zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);\r\n this._invokeTaskDlgt =\r\n zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);\r\n this._invokeTaskCurrZone =\r\n zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate._invokeTaskCurrZone);\r\n this._cancelTaskZS =\r\n zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);\r\n this._cancelTaskDlgt =\r\n zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);\r\n this._cancelTaskCurrZone =\r\n zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate._cancelTaskCurrZone);\r\n this._hasTaskZS = null;\r\n this._hasTaskDlgt = null;\r\n this._hasTaskDlgtOwner = null;\r\n this._hasTaskCurrZone = null;\r\n const zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;\r\n const parentHasTask = parentDelegate && parentDelegate._hasTaskZS;\r\n if (zoneSpecHasTask || parentHasTask) {\r\n // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such\r\n // a case all task related interceptors must go through this ZD. We can't short circuit it.\r\n this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;\r\n this._hasTaskDlgt = parentDelegate;\r\n this._hasTaskDlgtOwner = this;\r\n this._hasTaskCurrZone = zone;\r\n if (!zoneSpec.onScheduleTask) {\r\n this._scheduleTaskZS = DELEGATE_ZS;\r\n this._scheduleTaskDlgt = parentDelegate;\r\n this._scheduleTaskCurrZone = this.zone;\r\n }\r\n if (!zoneSpec.onInvokeTask) {\r\n this._invokeTaskZS = DELEGATE_ZS;\r\n this._invokeTaskDlgt = parentDelegate;\r\n this._invokeTaskCurrZone = this.zone;\r\n }\r\n if (!zoneSpec.onCancelTask) {\r\n this._cancelTaskZS = DELEGATE_ZS;\r\n this._cancelTaskDlgt = parentDelegate;\r\n this._cancelTaskCurrZone = this.zone;\r\n }\r\n }\r\n }\r\n fork(targetZone, zoneSpec) {\r\n return this._forkZS ?\r\n this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) :\r\n new Zone(targetZone, zoneSpec);\r\n }\r\n intercept(targetZone, callback, source) {\r\n return this._interceptZS ?\r\n this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) :\r\n callback;\r\n }\r\n invoke(targetZone, callback, applyThis, applyArgs, source) {\r\n return this._invokeZS ?\r\n this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) :\r\n callback.apply(applyThis, applyArgs);\r\n }\r\n handleError(targetZone, error) {\r\n return this._handleErrorZS ?\r\n this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) :\r\n true;\r\n }\r\n scheduleTask(targetZone, task) {\r\n let returnTask = task;\r\n if (this._scheduleTaskZS) {\r\n if (this._hasTaskZS) {\r\n returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);\r\n }\r\n // clang-format off\r\n returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);\r\n // clang-format on\r\n if (!returnTask)\r\n returnTask = task;\r\n }\r\n else {\r\n if (task.scheduleFn) {\r\n task.scheduleFn(task);\r\n }\r\n else if (task.type == microTask) {\r\n scheduleMicroTask(task);\r\n }\r\n else {\r\n throw new Error('Task is missing scheduleFn.');\r\n }\r\n }\r\n return returnTask;\r\n }\r\n invokeTask(targetZone, task, applyThis, applyArgs) {\r\n return this._invokeTaskZS ?\r\n this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) :\r\n task.callback.apply(applyThis, applyArgs);\r\n }\r\n cancelTask(targetZone, task) {\r\n let value;\r\n if (this._cancelTaskZS) {\r\n value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);\r\n }\r\n else {\r\n if (!task.cancelFn) {\r\n throw Error('Task is not cancelable');\r\n }\r\n value = task.cancelFn(task);\r\n }\r\n return value;\r\n }\r\n hasTask(targetZone, isEmpty) {\r\n // hasTask should not throw error so other ZoneDelegate\r\n // can still trigger hasTask callback\r\n try {\r\n this._hasTaskZS &&\r\n this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);\r\n }\r\n catch (err) {\r\n this.handleError(targetZone, err);\r\n }\r\n }\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n _updateTaskCount(type, count) {\r\n const counts = this._taskCounts;\r\n const prev = counts[type];\r\n const next = counts[type] = prev + count;\r\n if (next < 0) {\r\n throw new Error('More tasks executed then were scheduled.');\r\n }\r\n if (prev == 0 || next == 0) {\r\n const isEmpty = {\r\n microTask: counts['microTask'] > 0,\r\n macroTask: counts['macroTask'] > 0,\r\n eventTask: counts['eventTask'] > 0,\r\n change: type\r\n };\r\n this.hasTask(this.zone, isEmpty);\r\n }\r\n }\r\n }\r\n class ZoneTask {\r\n constructor(type, source, callback, options, scheduleFn, cancelFn) {\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n this._zone = null;\r\n this.runCount = 0;\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n this._zoneDelegates = null;\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n this._state = 'notScheduled';\r\n this.type = type;\r\n this.source = source;\r\n this.data = options;\r\n this.scheduleFn = scheduleFn;\r\n this.cancelFn = cancelFn;\r\n if (!callback) {\r\n throw new Error('callback is not defined');\r\n }\r\n this.callback = callback;\r\n const self = this;\r\n // TODO: @JiaLiPassion options should have interface\r\n if (type === eventTask && options && options.useG) {\r\n this.invoke = ZoneTask.invokeTask;\r\n }\r\n else {\r\n this.invoke = function () {\r\n return ZoneTask.invokeTask.call(global, self, this, arguments);\r\n };\r\n }\r\n }\r\n static invokeTask(task, target, args) {\r\n if (!task) {\r\n task = this;\r\n }\r\n _numberOfNestedTaskFrames++;\r\n try {\r\n task.runCount++;\r\n return task.zone.runTask(task, target, args);\r\n }\r\n finally {\r\n if (_numberOfNestedTaskFrames == 1) {\r\n drainMicroTaskQueue();\r\n }\r\n _numberOfNestedTaskFrames--;\r\n }\r\n }\r\n get zone() { return this._zone; }\r\n get state() { return this._state; }\r\n cancelScheduleRequest() { this._transitionTo(notScheduled, scheduling); }\r\n // tslint:disable-next-line:require-internal-with-underscore\r\n _transitionTo(toState, fromState1, fromState2) {\r\n if (this._state === fromState1 || this._state === fromState2) {\r\n this._state = toState;\r\n if (toState == notScheduled) {\r\n this._zoneDelegates = null;\r\n }\r\n }\r\n else {\r\n throw new Error(`${this.type} '${this.source}': can not transition to '${toState}', expecting state '${fromState1}'${fromState2 ? ' or \\'' + fromState2 + '\\'' : ''}, was '${this._state}'.`);\r\n }\r\n }\r\n toString() {\r\n if (this.data && typeof this.data.handleId !== 'undefined') {\r\n return this.data.handleId.toString();\r\n }\r\n else {\r\n return Object.prototype.toString.call(this);\r\n }\r\n }\r\n // add toJSON method to prevent cyclic error when\r\n // call JSON.stringify(zoneTask)\r\n toJSON() {\r\n return {\r\n type: this.type,\r\n state: this.state,\r\n source: this.source,\r\n zone: this.zone.name,\r\n runCount: this.runCount\r\n };\r\n }\r\n }\r\n //////////////////////////////////////////////////////\r\n //////////////////////////////////////////////////////\r\n /// MICROTASK QUEUE\r\n //////////////////////////////////////////////////////\r\n //////////////////////////////////////////////////////\r\n const symbolSetTimeout = __symbol__('setTimeout');\r\n const symbolPromise = __symbol__('Promise');\r\n const symbolThen = __symbol__('then');\r\n let _microTaskQueue = [];\r\n let _isDrainingMicrotaskQueue = false;\r\n let nativeMicroTaskQueuePromise;\r\n function scheduleMicroTask(task) {\r\n // if we are not running in any task, and there has not been anything scheduled\r\n // we must bootstrap the initial task creation by manually scheduling the drain\r\n if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {\r\n // We are not running in Task, so we need to kickstart the microtask queue.\r\n if (!nativeMicroTaskQueuePromise) {\r\n if (global[symbolPromise]) {\r\n nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);\r\n }\r\n }\r\n if (nativeMicroTaskQueuePromise) {\r\n let nativeThen = nativeMicroTaskQueuePromise[symbolThen];\r\n if (!nativeThen) {\r\n // native Promise is not patchable, we need to use `then` directly\r\n // issue 1078\r\n nativeThen = nativeMicroTaskQueuePromise['then'];\r\n }\r\n nativeThen.call(nativeMicroTaskQueuePromise, drainMicroTaskQueue);\r\n }\r\n else {\r\n global[symbolSetTimeout](drainMicroTaskQueue, 0);\r\n }\r\n }\r\n task && _microTaskQueue.push(task);\r\n }\r\n function drainMicroTaskQueue() {\r\n if (!_isDrainingMicrotaskQueue) {\r\n _isDrainingMicrotaskQueue = true;\r\n while (_microTaskQueue.length) {\r\n const queue = _microTaskQueue;\r\n _microTaskQueue = [];\r\n for (let i = 0; i < queue.length; i++) {\r\n const task = queue[i];\r\n try {\r\n task.zone.runTask(task, null, null);\r\n }\r\n catch (error) {\r\n _api.onUnhandledError(error);\r\n }\r\n }\r\n }\r\n _api.microtaskDrainDone();\r\n _isDrainingMicrotaskQueue = false;\r\n }\r\n }\r\n //////////////////////////////////////////////////////\r\n //////////////////////////////////////////////////////\r\n /// BOOTSTRAP\r\n //////////////////////////////////////////////////////\r\n //////////////////////////////////////////////////////\r\n const NO_ZONE = { name: 'NO ZONE' };\r\n const notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling', unknown = 'unknown';\r\n const microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';\r\n const patches = {};\r\n const _api = {\r\n symbol: __symbol__,\r\n currentZoneFrame: () => _currentZoneFrame,\r\n onUnhandledError: noop,\r\n microtaskDrainDone: noop,\r\n scheduleMicroTask: scheduleMicroTask,\r\n showUncaughtError: () => !Zone[__symbol__('ignoreConsoleErrorUncaughtError')],\r\n patchEventTarget: () => [],\r\n patchOnProperties: noop,\r\n patchMethod: () => noop,\r\n bindArguments: () => [],\r\n patchThen: () => noop,\r\n patchMacroTask: () => noop,\r\n setNativePromise: (NativePromise) => {\r\n // sometimes NativePromise.resolve static function\r\n // is not ready yet, (such as core-js/es6.promise)\r\n // so we need to check here.\r\n if (NativePromise && typeof NativePromise.resolve === 'function') {\r\n nativeMicroTaskQueuePromise = NativePromise.resolve(0);\r\n }\r\n },\r\n patchEventPrototype: () => noop,\r\n isIEOrEdge: () => false,\r\n getGlobalObjects: () => undefined,\r\n ObjectDefineProperty: () => noop,\r\n ObjectGetOwnPropertyDescriptor: () => undefined,\r\n ObjectCreate: () => undefined,\r\n ArraySlice: () => [],\r\n patchClass: () => noop,\r\n wrapWithCurrentZone: () => noop,\r\n filterProperties: () => [],\r\n attachOriginToPatched: () => noop,\r\n _redefineProperty: () => noop,\r\n patchCallbacks: () => noop\r\n };\r\n let _currentZoneFrame = { parent: null, zone: new Zone(null, null) };\r\n let _currentTask = null;\r\n let _numberOfNestedTaskFrames = 0;\r\n function noop() { }\r\n performanceMeasure('Zone', 'Zone');\r\n return global['Zone'] = Zone;\r\n })(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n Zone.__load_patch('ZoneAwarePromise', (global, Zone, api) => {\r\n const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\r\n const ObjectDefineProperty = Object.defineProperty;\r\n function readableObjectToString(obj) {\r\n if (obj && obj.toString === Object.prototype.toString) {\r\n const className = obj.constructor && obj.constructor.name;\r\n return (className ? className : '') + ': ' + JSON.stringify(obj);\r\n }\r\n return obj ? obj.toString() : Object.prototype.toString.call(obj);\r\n }\r\n const __symbol__ = api.symbol;\r\n const _uncaughtPromiseErrors = [];\r\n const isDisableWrappingUncaughtPromiseRejection = global[__symbol__('DISABLE_WRAPPING_UNCAUGHT_PROMISE_REJECTION')] === true;\r\n const symbolPromise = __symbol__('Promise');\r\n const symbolThen = __symbol__('then');\r\n const creationTrace = '__creationTrace__';\r\n api.onUnhandledError = (e) => {\r\n if (api.showUncaughtError()) {\r\n const rejection = e && e.rejection;\r\n if (rejection) {\r\n console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);\r\n }\r\n else {\r\n console.error(e);\r\n }\r\n }\r\n };\r\n api.microtaskDrainDone = () => {\r\n while (_uncaughtPromiseErrors.length) {\r\n const uncaughtPromiseError = _uncaughtPromiseErrors.shift();\r\n try {\r\n uncaughtPromiseError.zone.runGuarded(() => { throw uncaughtPromiseError; });\r\n }\r\n catch (error) {\r\n handleUnhandledRejection(error);\r\n }\r\n }\r\n };\r\n const UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');\r\n function handleUnhandledRejection(e) {\r\n api.onUnhandledError(e);\r\n try {\r\n const handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];\r\n if (typeof handler === 'function') {\r\n handler.call(this, e);\r\n }\r\n }\r\n catch (err) {\r\n }\r\n }\r\n function isThenable(value) { return value && value.then; }\r\n function forwardResolution(value) { return value; }\r\n function forwardRejection(rejection) { return ZoneAwarePromise.reject(rejection); }\r\n const symbolState = __symbol__('state');\r\n const symbolValue = __symbol__('value');\r\n const symbolFinally = __symbol__('finally');\r\n const symbolParentPromiseValue = __symbol__('parentPromiseValue');\r\n const symbolParentPromiseState = __symbol__('parentPromiseState');\r\n const source = 'Promise.then';\r\n const UNRESOLVED = null;\r\n const RESOLVED = true;\r\n const REJECTED = false;\r\n const REJECTED_NO_CATCH = 0;\r\n function makeResolver(promise, state) {\r\n return (v) => {\r\n try {\r\n resolvePromise(promise, state, v);\r\n }\r\n catch (err) {\r\n resolvePromise(promise, false, err);\r\n }\r\n // Do not return value or you will break the Promise spec.\r\n };\r\n }\r\n const once = function () {\r\n let wasCalled = false;\r\n return function wrapper(wrappedFunction) {\r\n return function () {\r\n if (wasCalled) {\r\n return;\r\n }\r\n wasCalled = true;\r\n wrappedFunction.apply(null, arguments);\r\n };\r\n };\r\n };\r\n const TYPE_ERROR = 'Promise resolved with itself';\r\n const CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');\r\n // Promise Resolution\r\n function resolvePromise(promise, state, value) {\r\n const onceWrapper = once();\r\n if (promise === value) {\r\n throw new TypeError(TYPE_ERROR);\r\n }\r\n if (promise[symbolState] === UNRESOLVED) {\r\n // should only get value.then once based on promise spec.\r\n let then = null;\r\n try {\r\n if (typeof value === 'object' || typeof value === 'function') {\r\n then = value && value.then;\r\n }\r\n }\r\n catch (err) {\r\n onceWrapper(() => { resolvePromise(promise, false, err); })();\r\n return promise;\r\n }\r\n // if (value instanceof ZoneAwarePromise) {\r\n if (state !== REJECTED && value instanceof ZoneAwarePromise &&\r\n value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) &&\r\n value[symbolState] !== UNRESOLVED) {\r\n clearRejectedNoCatch(value);\r\n resolvePromise(promise, value[symbolState], value[symbolValue]);\r\n }\r\n else if (state !== REJECTED && typeof then === 'function') {\r\n try {\r\n then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));\r\n }\r\n catch (err) {\r\n onceWrapper(() => { resolvePromise(promise, false, err); })();\r\n }\r\n }\r\n else {\r\n promise[symbolState] = state;\r\n const queue = promise[symbolValue];\r\n promise[symbolValue] = value;\r\n if (promise[symbolFinally] === symbolFinally) {\r\n // the promise is generated by Promise.prototype.finally\r\n if (state === RESOLVED) {\r\n // the state is resolved, should ignore the value\r\n // and use parent promise value\r\n promise[symbolState] = promise[symbolParentPromiseState];\r\n promise[symbolValue] = promise[symbolParentPromiseValue];\r\n }\r\n }\r\n // record task information in value when error occurs, so we can\r\n // do some additional work such as render longStackTrace\r\n if (state === REJECTED && value instanceof Error) {\r\n // check if longStackTraceZone is here\r\n const trace = Zone.currentTask && Zone.currentTask.data &&\r\n Zone.currentTask.data[creationTrace];\r\n if (trace) {\r\n // only keep the long stack trace into error when in longStackTraceZone\r\n ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, { configurable: true, enumerable: false, writable: true, value: trace });\r\n }\r\n }\r\n for (let i = 0; i < queue.length;) {\r\n scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);\r\n }\r\n if (queue.length == 0 && state == REJECTED) {\r\n promise[symbolState] = REJECTED_NO_CATCH;\r\n let uncaughtPromiseError = value;\r\n if (!isDisableWrappingUncaughtPromiseRejection) {\r\n // If disable wrapping uncaught promise reject\r\n // and the rejected value is an Error object,\r\n // use the value instead of wrapping it.\r\n try {\r\n // Here we throws a new Error to print more readable error log\r\n // and if the value is not an error, zone.js builds an `Error`\r\n // Object here to attach the stack information.\r\n throw new Error('Uncaught (in promise): ' + readableObjectToString(value) +\r\n (value && value.stack ? '\\n' + value.stack : ''));\r\n }\r\n catch (err) {\r\n uncaughtPromiseError = err;\r\n }\r\n }\r\n uncaughtPromiseError.rejection = value;\r\n uncaughtPromiseError.promise = promise;\r\n uncaughtPromiseError.zone = Zone.current;\r\n uncaughtPromiseError.task = Zone.currentTask;\r\n _uncaughtPromiseErrors.push(uncaughtPromiseError);\r\n api.scheduleMicroTask(); // to make sure that it is running\r\n }\r\n }\r\n }\r\n // Resolving an already resolved promise is a noop.\r\n return promise;\r\n }\r\n const REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');\r\n function clearRejectedNoCatch(promise) {\r\n if (promise[symbolState] === REJECTED_NO_CATCH) {\r\n // if the promise is rejected no catch status\r\n // and queue.length > 0, means there is a error handler\r\n // here to handle the rejected promise, we should trigger\r\n // windows.rejectionhandled eventHandler or nodejs rejectionHandled\r\n // eventHandler\r\n try {\r\n const handler = Zone[REJECTION_HANDLED_HANDLER];\r\n if (handler && typeof handler === 'function') {\r\n handler.call(this, { rejection: promise[symbolValue], promise: promise });\r\n }\r\n }\r\n catch (err) {\r\n }\r\n promise[symbolState] = REJECTED;\r\n for (let i = 0; i < _uncaughtPromiseErrors.length; i++) {\r\n if (promise === _uncaughtPromiseErrors[i].promise) {\r\n _uncaughtPromiseErrors.splice(i, 1);\r\n }\r\n }\r\n }\r\n }\r\n function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {\r\n clearRejectedNoCatch(promise);\r\n const promiseState = promise[symbolState];\r\n const delegate = promiseState ?\r\n (typeof onFulfilled === 'function') ? onFulfilled : forwardResolution :\r\n (typeof onRejected === 'function') ? onRejected : forwardRejection;\r\n zone.scheduleMicroTask(source, () => {\r\n try {\r\n const parentPromiseValue = promise[symbolValue];\r\n const isFinallyPromise = !!chainPromise && symbolFinally === chainPromise[symbolFinally];\r\n if (isFinallyPromise) {\r\n // if the promise is generated from finally call, keep parent promise's state and value\r\n chainPromise[symbolParentPromiseValue] = parentPromiseValue;\r\n chainPromise[symbolParentPromiseState] = promiseState;\r\n }\r\n // should not pass value to finally callback\r\n const value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ?\r\n [] :\r\n [parentPromiseValue]);\r\n resolvePromise(chainPromise, true, value);\r\n }\r\n catch (error) {\r\n // if error occurs, should always return this error\r\n resolvePromise(chainPromise, false, error);\r\n }\r\n }, chainPromise);\r\n }\r\n const ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';\r\n const noop = function () { };\r\n class ZoneAwarePromise {\r\n static toString() { return ZONE_AWARE_PROMISE_TO_STRING; }\r\n static resolve(value) {\r\n return resolvePromise(new this(null), RESOLVED, value);\r\n }\r\n static reject(error) {\r\n return resolvePromise(new this(null), REJECTED, error);\r\n }\r\n static race(values) {\r\n let resolve;\r\n let reject;\r\n let promise = new this((res, rej) => {\r\n resolve = res;\r\n reject = rej;\r\n });\r\n function onResolve(value) { resolve(value); }\r\n function onReject(error) { reject(error); }\r\n for (let value of values) {\r\n if (!isThenable(value)) {\r\n value = this.resolve(value);\r\n }\r\n value.then(onResolve, onReject);\r\n }\r\n return promise;\r\n }\r\n static all(values) { return ZoneAwarePromise.allWithCallback(values); }\r\n static allSettled(values) {\r\n const P = this && this.prototype instanceof ZoneAwarePromise ? this : ZoneAwarePromise;\r\n return P.allWithCallback(values, {\r\n thenCallback: (value) => ({ status: 'fulfilled', value }),\r\n errorCallback: (err) => ({ status: 'rejected', reason: err })\r\n });\r\n }\r\n static allWithCallback(values, callback) {\r\n let resolve;\r\n let reject;\r\n let promise = new this((res, rej) => {\r\n resolve = res;\r\n reject = rej;\r\n });\r\n // Start at 2 to prevent prematurely resolving if .then is called immediately.\r\n let unresolvedCount = 2;\r\n let valueIndex = 0;\r\n const resolvedValues = [];\r\n for (let value of values) {\r\n if (!isThenable(value)) {\r\n value = this.resolve(value);\r\n }\r\n const curValueIndex = valueIndex;\r\n try {\r\n value.then((value) => {\r\n resolvedValues[curValueIndex] = callback ? callback.thenCallback(value) : value;\r\n unresolvedCount--;\r\n if (unresolvedCount === 0) {\r\n resolve(resolvedValues);\r\n }\r\n }, (err) => {\r\n if (!callback) {\r\n reject(err);\r\n }\r\n else {\r\n resolvedValues[curValueIndex] = callback.errorCallback(err);\r\n unresolvedCount--;\r\n if (unresolvedCount === 0) {\r\n resolve(resolvedValues);\r\n }\r\n }\r\n });\r\n }\r\n catch (thenErr) {\r\n reject(thenErr);\r\n }\r\n unresolvedCount++;\r\n valueIndex++;\r\n }\r\n // Make the unresolvedCount zero-based again.\r\n unresolvedCount -= 2;\r\n if (unresolvedCount === 0) {\r\n resolve(resolvedValues);\r\n }\r\n return promise;\r\n }\r\n constructor(executor) {\r\n const promise = this;\r\n if (!(promise instanceof ZoneAwarePromise)) {\r\n throw new Error('Must be an instanceof Promise.');\r\n }\r\n promise[symbolState] = UNRESOLVED;\r\n promise[symbolValue] = []; // queue;\r\n try {\r\n executor && executor(makeResolver(promise, RESOLVED), makeResolver(promise, REJECTED));\r\n }\r\n catch (error) {\r\n resolvePromise(promise, false, error);\r\n }\r\n }\r\n get [Symbol.toStringTag]() { return 'Promise'; }\r\n get [Symbol.species]() { return ZoneAwarePromise; }\r\n then(onFulfilled, onRejected) {\r\n let C = this.constructor[Symbol.species];\r\n if (!C || typeof C !== 'function') {\r\n C = this.constructor || ZoneAwarePromise;\r\n }\r\n const chainPromise = new C(noop);\r\n const zone = Zone.current;\r\n if (this[symbolState] == UNRESOLVED) {\r\n this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);\r\n }\r\n else {\r\n scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);\r\n }\r\n return chainPromise;\r\n }\r\n catch(onRejected) {\r\n return this.then(null, onRejected);\r\n }\r\n finally(onFinally) {\r\n let C = this.constructor[Symbol.species];\r\n if (!C || typeof C !== 'function') {\r\n C = ZoneAwarePromise;\r\n }\r\n const chainPromise = new C(noop);\r\n chainPromise[symbolFinally] = symbolFinally;\r\n const zone = Zone.current;\r\n if (this[symbolState] == UNRESOLVED) {\r\n this[symbolValue].push(zone, chainPromise, onFinally, onFinally);\r\n }\r\n else {\r\n scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);\r\n }\r\n return chainPromise;\r\n }\r\n }\r\n // Protect against aggressive optimizers dropping seemingly unused properties.\r\n // E.g. Closure Compiler in advanced mode.\r\n ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;\r\n ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;\r\n ZoneAwarePromise['race'] = ZoneAwarePromise.race;\r\n ZoneAwarePromise['all'] = ZoneAwarePromise.all;\r\n const NativePromise = global[symbolPromise] = global['Promise'];\r\n const ZONE_AWARE_PROMISE = Zone.__symbol__('ZoneAwarePromise');\r\n let desc = ObjectGetOwnPropertyDescriptor(global, 'Promise');\r\n if (!desc || desc.configurable) {\r\n desc && delete desc.writable;\r\n desc && delete desc.value;\r\n if (!desc) {\r\n desc = { configurable: true, enumerable: true };\r\n }\r\n desc.get = function () {\r\n // if we already set ZoneAwarePromise, use patched one\r\n // otherwise return native one.\r\n return global[ZONE_AWARE_PROMISE] ? global[ZONE_AWARE_PROMISE] : global[symbolPromise];\r\n };\r\n desc.set = function (NewNativePromise) {\r\n if (NewNativePromise === ZoneAwarePromise) {\r\n // if the NewNativePromise is ZoneAwarePromise\r\n // save to global\r\n global[ZONE_AWARE_PROMISE] = NewNativePromise;\r\n }\r\n else {\r\n // if the NewNativePromise is not ZoneAwarePromise\r\n // for example: after load zone.js, some library just\r\n // set es6-promise to global, if we set it to global\r\n // directly, assertZonePatched will fail and angular\r\n // will not loaded, so we just set the NewNativePromise\r\n // to global[symbolPromise], so the result is just like\r\n // we load ES6 Promise before zone.js\r\n global[symbolPromise] = NewNativePromise;\r\n if (!NewNativePromise.prototype[symbolThen]) {\r\n patchThen(NewNativePromise);\r\n }\r\n api.setNativePromise(NewNativePromise);\r\n }\r\n };\r\n ObjectDefineProperty(global, 'Promise', desc);\r\n }\r\n global['Promise'] = ZoneAwarePromise;\r\n const symbolThenPatched = __symbol__('thenPatched');\r\n function patchThen(Ctor) {\r\n const proto = Ctor.prototype;\r\n const prop = ObjectGetOwnPropertyDescriptor(proto, 'then');\r\n if (prop && (prop.writable === false || !prop.configurable)) {\r\n // check Ctor.prototype.then propertyDescriptor is writable or not\r\n // in meteor env, writable is false, we should ignore such case\r\n return;\r\n }\r\n const originalThen = proto.then;\r\n // Keep a reference to the original method.\r\n proto[symbolThen] = originalThen;\r\n Ctor.prototype.then = function (onResolve, onReject) {\r\n const wrapped = new ZoneAwarePromise((resolve, reject) => { originalThen.call(this, resolve, reject); });\r\n return wrapped.then(onResolve, onReject);\r\n };\r\n Ctor[symbolThenPatched] = true;\r\n }\r\n api.patchThen = patchThen;\r\n function zoneify(fn) {\r\n return function () {\r\n let resultPromise = fn.apply(this, arguments);\r\n if (resultPromise instanceof ZoneAwarePromise) {\r\n return resultPromise;\r\n }\r\n let ctor = resultPromise.constructor;\r\n if (!ctor[symbolThenPatched]) {\r\n patchThen(ctor);\r\n }\r\n return resultPromise;\r\n };\r\n }\r\n if (NativePromise) {\r\n patchThen(NativePromise);\r\n const fetch = global['fetch'];\r\n if (typeof fetch == 'function') {\r\n global[api.symbol('fetch')] = fetch;\r\n global['fetch'] = zoneify(fetch);\r\n }\r\n }\r\n // This is not part of public API, but it is useful for tests, so we expose it.\r\n Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;\r\n return ZoneAwarePromise;\r\n });\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n /**\r\n * Suppress closure compiler errors about unknown 'Zone' variable\r\n * @fileoverview\r\n * @suppress {undefinedVars,globalThis,missingRequire}\r\n */\r\n /// \r\n // issue #989, to reduce bundle size, use short name\r\n /** Object.getOwnPropertyDescriptor */\r\n const ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\r\n /** Object.defineProperty */\r\n const ObjectDefineProperty = Object.defineProperty;\r\n /** Object.getPrototypeOf */\r\n const ObjectGetPrototypeOf = Object.getPrototypeOf;\r\n /** Object.create */\r\n const ObjectCreate = Object.create;\r\n /** Array.prototype.slice */\r\n const ArraySlice = Array.prototype.slice;\r\n /** addEventListener string const */\r\n const ADD_EVENT_LISTENER_STR = 'addEventListener';\r\n /** removeEventListener string const */\r\n const REMOVE_EVENT_LISTENER_STR = 'removeEventListener';\r\n /** zoneSymbol addEventListener */\r\n const ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);\r\n /** zoneSymbol removeEventListener */\r\n const ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);\r\n /** true string const */\r\n const TRUE_STR = 'true';\r\n /** false string const */\r\n const FALSE_STR = 'false';\r\n /** Zone symbol prefix string const. */\r\n const ZONE_SYMBOL_PREFIX = Zone.__symbol__('');\r\n function wrapWithCurrentZone(callback, source) {\r\n return Zone.current.wrap(callback, source);\r\n }\r\n function scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {\r\n return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);\r\n }\r\n const zoneSymbol = Zone.__symbol__;\r\n const isWindowExists = typeof window !== 'undefined';\r\n const internalWindow = isWindowExists ? window : undefined;\r\n const _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;\r\n const REMOVE_ATTRIBUTE = 'removeAttribute';\r\n const NULL_ON_PROP_VALUE = [null];\r\n function bindArguments(args, source) {\r\n for (let i = args.length - 1; i >= 0; i--) {\r\n if (typeof args[i] === 'function') {\r\n args[i] = wrapWithCurrentZone(args[i], source + '_' + i);\r\n }\r\n }\r\n return args;\r\n }\r\n function patchPrototype(prototype, fnNames) {\r\n const source = prototype.constructor['name'];\r\n for (let i = 0; i < fnNames.length; i++) {\r\n const name = fnNames[i];\r\n const delegate = prototype[name];\r\n if (delegate) {\r\n const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, name);\r\n if (!isPropertyWritable(prototypeDesc)) {\r\n continue;\r\n }\r\n prototype[name] = ((delegate) => {\r\n const patched = function () {\r\n return delegate.apply(this, bindArguments(arguments, source + '.' + name));\r\n };\r\n attachOriginToPatched(patched, delegate);\r\n return patched;\r\n })(delegate);\r\n }\r\n }\r\n }\r\n function isPropertyWritable(propertyDesc) {\r\n if (!propertyDesc) {\r\n return true;\r\n }\r\n if (propertyDesc.writable === false) {\r\n return false;\r\n }\r\n return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');\r\n }\r\n const isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);\r\n // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\r\n // this code.\r\n const isNode = (!('nw' in _global) && typeof _global.process !== 'undefined' &&\r\n {}.toString.call(_global.process) === '[object process]');\r\n const isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);\r\n // we are in electron of nw, so we are both browser and nodejs\r\n // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify\r\n // this code.\r\n const isMix = typeof _global.process !== 'undefined' &&\r\n {}.toString.call(_global.process) === '[object process]' && !isWebWorker &&\r\n !!(isWindowExists && internalWindow['HTMLElement']);\r\n const zoneSymbolEventNames = {};\r\n const wrapFn = function (event) {\r\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\r\n // event will be undefined, so we need to use window.event\r\n event = event || _global.event;\r\n if (!event) {\r\n return;\r\n }\r\n let eventNameSymbol = zoneSymbolEventNames[event.type];\r\n if (!eventNameSymbol) {\r\n eventNameSymbol = zoneSymbolEventNames[event.type] = zoneSymbol('ON_PROPERTY' + event.type);\r\n }\r\n const target = this || event.target || _global;\r\n const listener = target[eventNameSymbol];\r\n let result;\r\n if (isBrowser && target === internalWindow && event.type === 'error') {\r\n // window.onerror have different signiture\r\n // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror\r\n // and onerror callback will prevent default when callback return true\r\n const errorEvent = event;\r\n result = listener &&\r\n listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);\r\n if (result === true) {\r\n event.preventDefault();\r\n }\r\n }\r\n else {\r\n result = listener && listener.apply(this, arguments);\r\n if (result != undefined && !result) {\r\n event.preventDefault();\r\n }\r\n }\r\n return result;\r\n };\r\n function patchProperty(obj, prop, prototype) {\r\n let desc = ObjectGetOwnPropertyDescriptor(obj, prop);\r\n if (!desc && prototype) {\r\n // when patch window object, use prototype to check prop exist or not\r\n const prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);\r\n if (prototypeDesc) {\r\n desc = { enumerable: true, configurable: true };\r\n }\r\n }\r\n // if the descriptor not exists or is not configurable\r\n // just return\r\n if (!desc || !desc.configurable) {\r\n return;\r\n }\r\n const onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');\r\n if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {\r\n return;\r\n }\r\n // A property descriptor cannot have getter/setter and be writable\r\n // deleting the writable and value properties avoids this error:\r\n //\r\n // TypeError: property descriptors must not specify a value or be writable when a\r\n // getter or setter has been specified\r\n delete desc.writable;\r\n delete desc.value;\r\n const originalDescGet = desc.get;\r\n const originalDescSet = desc.set;\r\n // substr(2) cuz 'onclick' -> 'click', etc\r\n const eventName = prop.substr(2);\r\n let eventNameSymbol = zoneSymbolEventNames[eventName];\r\n if (!eventNameSymbol) {\r\n eventNameSymbol = zoneSymbolEventNames[eventName] = zoneSymbol('ON_PROPERTY' + eventName);\r\n }\r\n desc.set = function (newValue) {\r\n // in some of windows's onproperty callback, this is undefined\r\n // so we need to check it\r\n let target = this;\r\n if (!target && obj === _global) {\r\n target = _global;\r\n }\r\n if (!target) {\r\n return;\r\n }\r\n let previousValue = target[eventNameSymbol];\r\n if (previousValue) {\r\n target.removeEventListener(eventName, wrapFn);\r\n }\r\n // issue #978, when onload handler was added before loading zone.js\r\n // we should remove it with originalDescSet\r\n if (originalDescSet) {\r\n originalDescSet.apply(target, NULL_ON_PROP_VALUE);\r\n }\r\n if (typeof newValue === 'function') {\r\n target[eventNameSymbol] = newValue;\r\n target.addEventListener(eventName, wrapFn, false);\r\n }\r\n else {\r\n target[eventNameSymbol] = null;\r\n }\r\n };\r\n // The getter would return undefined for unassigned properties but the default value of an\r\n // unassigned property is null\r\n desc.get = function () {\r\n // in some of windows's onproperty callback, this is undefined\r\n // so we need to check it\r\n let target = this;\r\n if (!target && obj === _global) {\r\n target = _global;\r\n }\r\n if (!target) {\r\n return null;\r\n }\r\n const listener = target[eventNameSymbol];\r\n if (listener) {\r\n return listener;\r\n }\r\n else if (originalDescGet) {\r\n // result will be null when use inline event attribute,\r\n // such as \r\n // because the onclick function is internal raw uncompiled handler\r\n // the onclick will be evaluated when first time event was triggered or\r\n // the property is accessed, https://github.com/angular/zone.js/issues/525\r\n // so we should use original native get to retrieve the handler\r\n let value = originalDescGet && originalDescGet.call(this);\r\n if (value) {\r\n desc.set.call(this, value);\r\n if (typeof target[REMOVE_ATTRIBUTE] === 'function') {\r\n target.removeAttribute(prop);\r\n }\r\n return value;\r\n }\r\n }\r\n return null;\r\n };\r\n ObjectDefineProperty(obj, prop, desc);\r\n obj[onPropPatchedSymbol] = true;\r\n }\r\n function patchOnProperties(obj, properties, prototype) {\r\n if (properties) {\r\n for (let i = 0; i < properties.length; i++) {\r\n patchProperty(obj, 'on' + properties[i], prototype);\r\n }\r\n }\r\n else {\r\n const onProperties = [];\r\n for (const prop in obj) {\r\n if (prop.substr(0, 2) == 'on') {\r\n onProperties.push(prop);\r\n }\r\n }\r\n for (let j = 0; j < onProperties.length; j++) {\r\n patchProperty(obj, onProperties[j], prototype);\r\n }\r\n }\r\n }\r\n const originalInstanceKey = zoneSymbol('originalInstance');\r\n // wrap some native API on `window`\r\n function patchClass(className) {\r\n const OriginalClass = _global[className];\r\n if (!OriginalClass)\r\n return;\r\n // keep original class in global\r\n _global[zoneSymbol(className)] = OriginalClass;\r\n _global[className] = function () {\r\n const a = bindArguments(arguments, className);\r\n switch (a.length) {\r\n case 0:\r\n this[originalInstanceKey] = new OriginalClass();\r\n break;\r\n case 1:\r\n this[originalInstanceKey] = new OriginalClass(a[0]);\r\n break;\r\n case 2:\r\n this[originalInstanceKey] = new OriginalClass(a[0], a[1]);\r\n break;\r\n case 3:\r\n this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);\r\n break;\r\n case 4:\r\n this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);\r\n break;\r\n default:\r\n throw new Error('Arg list too long.');\r\n }\r\n };\r\n // attach original delegate to patched function\r\n attachOriginToPatched(_global[className], OriginalClass);\r\n const instance = new OriginalClass(function () { });\r\n let prop;\r\n for (prop in instance) {\r\n // https://bugs.webkit.org/show_bug.cgi?id=44721\r\n if (className === 'XMLHttpRequest' && prop === 'responseBlob')\r\n continue;\r\n (function (prop) {\r\n if (typeof instance[prop] === 'function') {\r\n _global[className].prototype[prop] = function () {\r\n return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);\r\n };\r\n }\r\n else {\r\n ObjectDefineProperty(_global[className].prototype, prop, {\r\n set: function (fn) {\r\n if (typeof fn === 'function') {\r\n this[originalInstanceKey][prop] = wrapWithCurrentZone(fn, className + '.' + prop);\r\n // keep callback in wrapped function so we can\r\n // use it in Function.prototype.toString to return\r\n // the native one.\r\n attachOriginToPatched(this[originalInstanceKey][prop], fn);\r\n }\r\n else {\r\n this[originalInstanceKey][prop] = fn;\r\n }\r\n },\r\n get: function () { return this[originalInstanceKey][prop]; }\r\n });\r\n }\r\n }(prop));\r\n }\r\n for (prop in OriginalClass) {\r\n if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {\r\n _global[className][prop] = OriginalClass[prop];\r\n }\r\n }\r\n }\r\n function copySymbolProperties(src, dest) {\r\n if (typeof Object.getOwnPropertySymbols !== 'function') {\r\n return;\r\n }\r\n const symbols = Object.getOwnPropertySymbols(src);\r\n symbols.forEach((symbol) => {\r\n const desc = Object.getOwnPropertyDescriptor(src, symbol);\r\n Object.defineProperty(dest, symbol, {\r\n get: function () { return src[symbol]; },\r\n set: function (value) {\r\n if (desc && (!desc.writable || typeof desc.set !== 'function')) {\r\n // if src[symbol] is not writable or not have a setter, just return\r\n return;\r\n }\r\n src[symbol] = value;\r\n },\r\n enumerable: desc ? desc.enumerable : true,\r\n configurable: desc ? desc.configurable : true\r\n });\r\n });\r\n }\r\n let shouldCopySymbolProperties = false;\r\n function patchMethod(target, name, patchFn) {\r\n let proto = target;\r\n while (proto && !proto.hasOwnProperty(name)) {\r\n proto = ObjectGetPrototypeOf(proto);\r\n }\r\n if (!proto && target[name]) {\r\n // somehow we did not find it, but we can see it. This happens on IE for Window properties.\r\n proto = target;\r\n }\r\n const delegateName = zoneSymbol(name);\r\n let delegate = null;\r\n if (proto && !(delegate = proto[delegateName])) {\r\n delegate = proto[delegateName] = proto[name];\r\n // check whether proto[name] is writable\r\n // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob\r\n const desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);\r\n if (isPropertyWritable(desc)) {\r\n const patchDelegate = patchFn(delegate, delegateName, name);\r\n proto[name] = function () { return patchDelegate(this, arguments); };\r\n attachOriginToPatched(proto[name], delegate);\r\n if (shouldCopySymbolProperties) {\r\n copySymbolProperties(delegate, proto[name]);\r\n }\r\n }\r\n }\r\n return delegate;\r\n }\r\n // TODO: @JiaLiPassion, support cancel task later if necessary\r\n function patchMacroTask(obj, funcName, metaCreator) {\r\n let setNative = null;\r\n function scheduleTask(task) {\r\n const data = task.data;\r\n data.args[data.cbIdx] = function () { task.invoke.apply(this, arguments); };\r\n setNative.apply(data.target, data.args);\r\n return task;\r\n }\r\n setNative = patchMethod(obj, funcName, (delegate) => function (self, args) {\r\n const meta = metaCreator(self, args);\r\n if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {\r\n return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);\r\n }\r\n else {\r\n // cause an error by calling it directly.\r\n return delegate.apply(self, args);\r\n }\r\n });\r\n }\r\n function attachOriginToPatched(patched, original) {\r\n patched[zoneSymbol('OriginalDelegate')] = original;\r\n }\r\n let isDetectedIEOrEdge = false;\r\n let ieOrEdge = false;\r\n function isIE() {\r\n try {\r\n const ua = internalWindow.navigator.userAgent;\r\n if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1) {\r\n return true;\r\n }\r\n }\r\n catch (error) {\r\n }\r\n return false;\r\n }\r\n function isIEOrEdge() {\r\n if (isDetectedIEOrEdge) {\r\n return ieOrEdge;\r\n }\r\n isDetectedIEOrEdge = true;\r\n try {\r\n const ua = internalWindow.navigator.userAgent;\r\n if (ua.indexOf('MSIE ') !== -1 || ua.indexOf('Trident/') !== -1 || ua.indexOf('Edge/') !== -1) {\r\n ieOrEdge = true;\r\n }\r\n }\r\n catch (error) {\r\n }\r\n return ieOrEdge;\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n // override Function.prototype.toString to make zone.js patched function\r\n // look like native function\r\n Zone.__load_patch('toString', (global) => {\r\n // patch Func.prototype.toString to let them look like native\r\n const originalFunctionToString = Function.prototype.toString;\r\n const ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');\r\n const PROMISE_SYMBOL = zoneSymbol('Promise');\r\n const ERROR_SYMBOL = zoneSymbol('Error');\r\n const newFunctionToString = function toString() {\r\n if (typeof this === 'function') {\r\n const originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];\r\n if (originalDelegate) {\r\n if (typeof originalDelegate === 'function') {\r\n return originalFunctionToString.call(originalDelegate);\r\n }\r\n else {\r\n return Object.prototype.toString.call(originalDelegate);\r\n }\r\n }\r\n if (this === Promise) {\r\n const nativePromise = global[PROMISE_SYMBOL];\r\n if (nativePromise) {\r\n return originalFunctionToString.call(nativePromise);\r\n }\r\n }\r\n if (this === Error) {\r\n const nativeError = global[ERROR_SYMBOL];\r\n if (nativeError) {\r\n return originalFunctionToString.call(nativeError);\r\n }\r\n }\r\n }\r\n return originalFunctionToString.call(this);\r\n };\r\n newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;\r\n Function.prototype.toString = newFunctionToString;\r\n // patch Object.prototype.toString to let them look like native\r\n const originalObjectToString = Object.prototype.toString;\r\n const PROMISE_OBJECT_TO_STRING = '[object Promise]';\r\n Object.prototype.toString = function () {\r\n if (this instanceof Promise) {\r\n return PROMISE_OBJECT_TO_STRING;\r\n }\r\n return originalObjectToString.call(this);\r\n };\r\n });\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n let passiveSupported = false;\r\n if (typeof window !== 'undefined') {\r\n try {\r\n const options = Object.defineProperty({}, 'passive', { get: function () { passiveSupported = true; } });\r\n window.addEventListener('test', options, options);\r\n window.removeEventListener('test', options, options);\r\n }\r\n catch (err) {\r\n passiveSupported = false;\r\n }\r\n }\r\n // an identifier to tell ZoneTask do not create a new invoke closure\r\n const OPTIMIZED_ZONE_EVENT_TASK_DATA = {\r\n useG: true\r\n };\r\n const zoneSymbolEventNames$1 = {};\r\n const globalSources = {};\r\n const EVENT_NAME_SYMBOL_REGX = new RegExp('^' + ZONE_SYMBOL_PREFIX + '(\\\\w+)(true|false)$');\r\n const IMMEDIATE_PROPAGATION_SYMBOL = zoneSymbol('propagationStopped');\r\n function prepareEventNames(eventName, eventNameToString) {\r\n const falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;\r\n const trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;\r\n const symbol = ZONE_SYMBOL_PREFIX + falseEventName;\r\n const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\r\n zoneSymbolEventNames$1[eventName] = {};\r\n zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;\r\n zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;\r\n }\r\n function patchEventTarget(_global, apis, patchOptions) {\r\n const ADD_EVENT_LISTENER = (patchOptions && patchOptions.add) || ADD_EVENT_LISTENER_STR;\r\n const REMOVE_EVENT_LISTENER = (patchOptions && patchOptions.rm) || REMOVE_EVENT_LISTENER_STR;\r\n const LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.listeners) || 'eventListeners';\r\n const REMOVE_ALL_LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.rmAll) || 'removeAllListeners';\r\n const zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);\r\n const ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';\r\n const PREPEND_EVENT_LISTENER = 'prependListener';\r\n const PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';\r\n const invokeTask = function (task, target, event) {\r\n // for better performance, check isRemoved which is set\r\n // by removeEventListener\r\n if (task.isRemoved) {\r\n return;\r\n }\r\n const delegate = task.callback;\r\n if (typeof delegate === 'object' && delegate.handleEvent) {\r\n // create the bind version of handleEvent when invoke\r\n task.callback = (event) => delegate.handleEvent(event);\r\n task.originalDelegate = delegate;\r\n }\r\n // invoke static task.invoke\r\n task.invoke(task, target, [event]);\r\n const options = task.options;\r\n if (options && typeof options === 'object' && options.once) {\r\n // if options.once is true, after invoke once remove listener here\r\n // only browser need to do this, nodejs eventEmitter will cal removeListener\r\n // inside EventEmitter.once\r\n const delegate = task.originalDelegate ? task.originalDelegate : task.callback;\r\n target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate, options);\r\n }\r\n };\r\n // global shared zoneAwareCallback to handle all event callback with capture = false\r\n const globalZoneAwareCallback = function (event) {\r\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\r\n // event will be undefined, so we need to use window.event\r\n event = event || _global.event;\r\n if (!event) {\r\n return;\r\n }\r\n // event.target is needed for Samsung TV and SourceBuffer\r\n // || global is needed https://github.com/angular/zone.js/issues/190\r\n const target = this || event.target || _global;\r\n const tasks = target[zoneSymbolEventNames$1[event.type][FALSE_STR]];\r\n if (tasks) {\r\n // invoke all tasks which attached to current target with given event.type and capture = false\r\n // for performance concern, if task.length === 1, just invoke\r\n if (tasks.length === 1) {\r\n invokeTask(tasks[0], target, event);\r\n }\r\n else {\r\n // https://github.com/angular/zone.js/issues/836\r\n // copy the tasks array before invoke, to avoid\r\n // the callback will remove itself or other listener\r\n const copyTasks = tasks.slice();\r\n for (let i = 0; i < copyTasks.length; i++) {\r\n if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\r\n break;\r\n }\r\n invokeTask(copyTasks[i], target, event);\r\n }\r\n }\r\n }\r\n };\r\n // global shared zoneAwareCallback to handle all event callback with capture = true\r\n const globalZoneAwareCaptureCallback = function (event) {\r\n // https://github.com/angular/zone.js/issues/911, in IE, sometimes\r\n // event will be undefined, so we need to use window.event\r\n event = event || _global.event;\r\n if (!event) {\r\n return;\r\n }\r\n // event.target is needed for Samsung TV and SourceBuffer\r\n // || global is needed https://github.com/angular/zone.js/issues/190\r\n const target = this || event.target || _global;\r\n const tasks = target[zoneSymbolEventNames$1[event.type][TRUE_STR]];\r\n if (tasks) {\r\n // invoke all tasks which attached to current target with given event.type and capture = false\r\n // for performance concern, if task.length === 1, just invoke\r\n if (tasks.length === 1) {\r\n invokeTask(tasks[0], target, event);\r\n }\r\n else {\r\n // https://github.com/angular/zone.js/issues/836\r\n // copy the tasks array before invoke, to avoid\r\n // the callback will remove itself or other listener\r\n const copyTasks = tasks.slice();\r\n for (let i = 0; i < copyTasks.length; i++) {\r\n if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {\r\n break;\r\n }\r\n invokeTask(copyTasks[i], target, event);\r\n }\r\n }\r\n }\r\n };\r\n function patchEventTargetMethods(obj, patchOptions) {\r\n if (!obj) {\r\n return false;\r\n }\r\n let useGlobalCallback = true;\r\n if (patchOptions && patchOptions.useG !== undefined) {\r\n useGlobalCallback = patchOptions.useG;\r\n }\r\n const validateHandler = patchOptions && patchOptions.vh;\r\n let checkDuplicate = true;\r\n if (patchOptions && patchOptions.chkDup !== undefined) {\r\n checkDuplicate = patchOptions.chkDup;\r\n }\r\n let returnTarget = false;\r\n if (patchOptions && patchOptions.rt !== undefined) {\r\n returnTarget = patchOptions.rt;\r\n }\r\n let proto = obj;\r\n while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {\r\n proto = ObjectGetPrototypeOf(proto);\r\n }\r\n if (!proto && obj[ADD_EVENT_LISTENER]) {\r\n // somehow we did not find it, but we can see it. This happens on IE for Window properties.\r\n proto = obj;\r\n }\r\n if (!proto) {\r\n return false;\r\n }\r\n if (proto[zoneSymbolAddEventListener]) {\r\n return false;\r\n }\r\n const eventNameToString = patchOptions && patchOptions.eventNameToString;\r\n // a shared global taskData to pass data for scheduleEventTask\r\n // so we do not need to create a new object just for pass some data\r\n const taskData = {};\r\n const nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];\r\n const nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] =\r\n proto[REMOVE_EVENT_LISTENER];\r\n const nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] =\r\n proto[LISTENERS_EVENT_LISTENER];\r\n const nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] =\r\n proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];\r\n let nativePrependEventListener;\r\n if (patchOptions && patchOptions.prepend) {\r\n nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] =\r\n proto[patchOptions.prepend];\r\n }\r\n /**\r\n * This util function will build an option object with passive option\r\n * to handle all possible input from the user.\r\n */\r\n function buildEventListenerOptions(options, passive) {\r\n if (!passiveSupported && typeof options === 'object' && options) {\r\n // doesn't support passive but user want to pass an object as options.\r\n // this will not work on some old browser, so we just pass a boolean\r\n // as useCapture parameter\r\n return !!options.capture;\r\n }\r\n if (!passiveSupported || !passive) {\r\n return options;\r\n }\r\n if (typeof options === 'boolean') {\r\n return { capture: options, passive: true };\r\n }\r\n if (!options) {\r\n return { passive: true };\r\n }\r\n if (typeof options === 'object' && options.passive !== false) {\r\n return Object.assign(Object.assign({}, options), { passive: true });\r\n }\r\n return options;\r\n }\r\n const customScheduleGlobal = function (task) {\r\n // if there is already a task for the eventName + capture,\r\n // just return, because we use the shared globalZoneAwareCallback here.\r\n if (taskData.isExisting) {\r\n return;\r\n }\r\n return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);\r\n };\r\n const customCancelGlobal = function (task) {\r\n // if task is not marked as isRemoved, this call is directly\r\n // from Zone.prototype.cancelTask, we should remove the task\r\n // from tasksList of target first\r\n if (!task.isRemoved) {\r\n const symbolEventNames = zoneSymbolEventNames$1[task.eventName];\r\n let symbolEventName;\r\n if (symbolEventNames) {\r\n symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];\r\n }\r\n const existingTasks = symbolEventName && task.target[symbolEventName];\r\n if (existingTasks) {\r\n for (let i = 0; i < existingTasks.length; i++) {\r\n const existingTask = existingTasks[i];\r\n if (existingTask === task) {\r\n existingTasks.splice(i, 1);\r\n // set isRemoved to data for faster invokeTask check\r\n task.isRemoved = true;\r\n if (existingTasks.length === 0) {\r\n // all tasks for the eventName + capture have gone,\r\n // remove globalZoneAwareCallback and remove the task cache from target\r\n task.allRemoved = true;\r\n task.target[symbolEventName] = null;\r\n }\r\n break;\r\n }\r\n }\r\n }\r\n }\r\n // if all tasks for the eventName + capture have gone,\r\n // we will really remove the global event callback,\r\n // if not, return\r\n if (!task.allRemoved) {\r\n return;\r\n }\r\n return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);\r\n };\r\n const customScheduleNonGlobal = function (task) {\r\n return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\r\n };\r\n const customSchedulePrepend = function (task) {\r\n return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);\r\n };\r\n const customCancelNonGlobal = function (task) {\r\n return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);\r\n };\r\n const customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;\r\n const customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;\r\n const compareTaskCallbackVsDelegate = function (task, delegate) {\r\n const typeOfDelegate = typeof delegate;\r\n return (typeOfDelegate === 'function' && task.callback === delegate) ||\r\n (typeOfDelegate === 'object' && task.originalDelegate === delegate);\r\n };\r\n const compare = (patchOptions && patchOptions.diff) ? patchOptions.diff : compareTaskCallbackVsDelegate;\r\n const blackListedEvents = Zone[zoneSymbol('BLACK_LISTED_EVENTS')];\r\n const passiveEvents = _global[zoneSymbol('PASSIVE_EVENTS')];\r\n const makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget = false, prepend = false) {\r\n return function () {\r\n const target = this || _global;\r\n let eventName = arguments[0];\r\n if (patchOptions && patchOptions.transferEventName) {\r\n eventName = patchOptions.transferEventName(eventName);\r\n }\r\n let delegate = arguments[1];\r\n if (!delegate) {\r\n return nativeListener.apply(this, arguments);\r\n }\r\n if (isNode && eventName === 'uncaughtException') {\r\n // don't patch uncaughtException of nodejs to prevent endless loop\r\n return nativeListener.apply(this, arguments);\r\n }\r\n // don't create the bind delegate function for handleEvent\r\n // case here to improve addEventListener performance\r\n // we will create the bind delegate when invoke\r\n let isHandleEvent = false;\r\n if (typeof delegate !== 'function') {\r\n if (!delegate.handleEvent) {\r\n return nativeListener.apply(this, arguments);\r\n }\r\n isHandleEvent = true;\r\n }\r\n if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {\r\n return;\r\n }\r\n const passive = passiveSupported && !!passiveEvents && passiveEvents.indexOf(eventName) !== -1;\r\n const options = buildEventListenerOptions(arguments[2], passive);\r\n if (blackListedEvents) {\r\n // check black list\r\n for (let i = 0; i < blackListedEvents.length; i++) {\r\n if (eventName === blackListedEvents[i]) {\r\n if (passive) {\r\n return nativeListener.call(target, eventName, delegate, options);\r\n }\r\n else {\r\n return nativeListener.apply(this, arguments);\r\n }\r\n }\r\n }\r\n }\r\n const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;\r\n const once = options && typeof options === 'object' ? options.once : false;\r\n const zone = Zone.current;\r\n let symbolEventNames = zoneSymbolEventNames$1[eventName];\r\n if (!symbolEventNames) {\r\n prepareEventNames(eventName, eventNameToString);\r\n symbolEventNames = zoneSymbolEventNames$1[eventName];\r\n }\r\n const symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\r\n let existingTasks = target[symbolEventName];\r\n let isExisting = false;\r\n if (existingTasks) {\r\n // already have task registered\r\n isExisting = true;\r\n if (checkDuplicate) {\r\n for (let i = 0; i < existingTasks.length; i++) {\r\n if (compare(existingTasks[i], delegate)) {\r\n // same callback, same capture, same event name, just return\r\n return;\r\n }\r\n }\r\n }\r\n }\r\n else {\r\n existingTasks = target[symbolEventName] = [];\r\n }\r\n let source;\r\n const constructorName = target.constructor['name'];\r\n const targetSource = globalSources[constructorName];\r\n if (targetSource) {\r\n source = targetSource[eventName];\r\n }\r\n if (!source) {\r\n source = constructorName + addSource +\r\n (eventNameToString ? eventNameToString(eventName) : eventName);\r\n }\r\n // do not create a new object as task.data to pass those things\r\n // just use the global shared one\r\n taskData.options = options;\r\n if (once) {\r\n // if addEventListener with once options, we don't pass it to\r\n // native addEventListener, instead we keep the once setting\r\n // and handle ourselves.\r\n taskData.options.once = false;\r\n }\r\n taskData.target = target;\r\n taskData.capture = capture;\r\n taskData.eventName = eventName;\r\n taskData.isExisting = isExisting;\r\n const data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined;\r\n // keep taskData into data to allow onScheduleEventTask to access the task information\r\n if (data) {\r\n data.taskData = taskData;\r\n }\r\n const task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);\r\n // should clear taskData.target to avoid memory leak\r\n // issue, https://github.com/angular/angular/issues/20442\r\n taskData.target = null;\r\n // need to clear up taskData because it is a global object\r\n if (data) {\r\n data.taskData = null;\r\n }\r\n // have to save those information to task in case\r\n // application may call task.zone.cancelTask() directly\r\n if (once) {\r\n options.once = true;\r\n }\r\n if (!(!passiveSupported && typeof task.options === 'boolean')) {\r\n // if not support passive, and we pass an option object\r\n // to addEventListener, we should save the options to task\r\n task.options = options;\r\n }\r\n task.target = target;\r\n task.capture = capture;\r\n task.eventName = eventName;\r\n if (isHandleEvent) {\r\n // save original delegate for compare to check duplicate\r\n task.originalDelegate = delegate;\r\n }\r\n if (!prepend) {\r\n existingTasks.push(task);\r\n }\r\n else {\r\n existingTasks.unshift(task);\r\n }\r\n if (returnTarget) {\r\n return target;\r\n }\r\n };\r\n };\r\n proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);\r\n if (nativePrependEventListener) {\r\n proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);\r\n }\r\n proto[REMOVE_EVENT_LISTENER] = function () {\r\n const target = this || _global;\r\n let eventName = arguments[0];\r\n if (patchOptions && patchOptions.transferEventName) {\r\n eventName = patchOptions.transferEventName(eventName);\r\n }\r\n const options = arguments[2];\r\n const capture = !options ? false : typeof options === 'boolean' ? true : options.capture;\r\n const delegate = arguments[1];\r\n if (!delegate) {\r\n return nativeRemoveEventListener.apply(this, arguments);\r\n }\r\n if (validateHandler &&\r\n !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {\r\n return;\r\n }\r\n const symbolEventNames = zoneSymbolEventNames$1[eventName];\r\n let symbolEventName;\r\n if (symbolEventNames) {\r\n symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];\r\n }\r\n const existingTasks = symbolEventName && target[symbolEventName];\r\n if (existingTasks) {\r\n for (let i = 0; i < existingTasks.length; i++) {\r\n const existingTask = existingTasks[i];\r\n if (compare(existingTask, delegate)) {\r\n existingTasks.splice(i, 1);\r\n // set isRemoved to data for faster invokeTask check\r\n existingTask.isRemoved = true;\r\n if (existingTasks.length === 0) {\r\n // all tasks for the eventName + capture have gone,\r\n // remove globalZoneAwareCallback and remove the task cache from target\r\n existingTask.allRemoved = true;\r\n target[symbolEventName] = null;\r\n // in the target, we have an event listener which is added by on_property\r\n // such as target.onclick = function() {}, so we need to clear this internal\r\n // property too if all delegates all removed\r\n if (typeof eventName === 'string') {\r\n const onPropertySymbol = ZONE_SYMBOL_PREFIX + 'ON_PROPERTY' + eventName;\r\n target[onPropertySymbol] = null;\r\n }\r\n }\r\n existingTask.zone.cancelTask(existingTask);\r\n if (returnTarget) {\r\n return target;\r\n }\r\n return;\r\n }\r\n }\r\n }\r\n // issue 930, didn't find the event name or callback\r\n // from zone kept existingTasks, the callback maybe\r\n // added outside of zone, we need to call native removeEventListener\r\n // to try to remove it.\r\n return nativeRemoveEventListener.apply(this, arguments);\r\n };\r\n proto[LISTENERS_EVENT_LISTENER] = function () {\r\n const target = this || _global;\r\n let eventName = arguments[0];\r\n if (patchOptions && patchOptions.transferEventName) {\r\n eventName = patchOptions.transferEventName(eventName);\r\n }\r\n const listeners = [];\r\n const tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);\r\n for (let i = 0; i < tasks.length; i++) {\r\n const task = tasks[i];\r\n let delegate = task.originalDelegate ? task.originalDelegate : task.callback;\r\n listeners.push(delegate);\r\n }\r\n return listeners;\r\n };\r\n proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {\r\n const target = this || _global;\r\n let eventName = arguments[0];\r\n if (!eventName) {\r\n const keys = Object.keys(target);\r\n for (let i = 0; i < keys.length; i++) {\r\n const prop = keys[i];\r\n const match = EVENT_NAME_SYMBOL_REGX.exec(prop);\r\n let evtName = match && match[1];\r\n // in nodejs EventEmitter, removeListener event is\r\n // used for monitoring the removeListener call,\r\n // so just keep removeListener eventListener until\r\n // all other eventListeners are removed\r\n if (evtName && evtName !== 'removeListener') {\r\n this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);\r\n }\r\n }\r\n // remove removeListener listener finally\r\n this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');\r\n }\r\n else {\r\n if (patchOptions && patchOptions.transferEventName) {\r\n eventName = patchOptions.transferEventName(eventName);\r\n }\r\n const symbolEventNames = zoneSymbolEventNames$1[eventName];\r\n if (symbolEventNames) {\r\n const symbolEventName = symbolEventNames[FALSE_STR];\r\n const symbolCaptureEventName = symbolEventNames[TRUE_STR];\r\n const tasks = target[symbolEventName];\r\n const captureTasks = target[symbolCaptureEventName];\r\n if (tasks) {\r\n const removeTasks = tasks.slice();\r\n for (let i = 0; i < removeTasks.length; i++) {\r\n const task = removeTasks[i];\r\n let delegate = task.originalDelegate ? task.originalDelegate : task.callback;\r\n this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\r\n }\r\n }\r\n if (captureTasks) {\r\n const removeTasks = captureTasks.slice();\r\n for (let i = 0; i < removeTasks.length; i++) {\r\n const task = removeTasks[i];\r\n let delegate = task.originalDelegate ? task.originalDelegate : task.callback;\r\n this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);\r\n }\r\n }\r\n }\r\n }\r\n if (returnTarget) {\r\n return this;\r\n }\r\n };\r\n // for native toString patch\r\n attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);\r\n attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);\r\n if (nativeRemoveAllListeners) {\r\n attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);\r\n }\r\n if (nativeListeners) {\r\n attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);\r\n }\r\n return true;\r\n }\r\n let results = [];\r\n for (let i = 0; i < apis.length; i++) {\r\n results[i] = patchEventTargetMethods(apis[i], patchOptions);\r\n }\r\n return results;\r\n }\r\n function findEventTasks(target, eventName) {\r\n if (!eventName) {\r\n const foundTasks = [];\r\n for (let prop in target) {\r\n const match = EVENT_NAME_SYMBOL_REGX.exec(prop);\r\n let evtName = match && match[1];\r\n if (evtName && (!eventName || evtName === eventName)) {\r\n const tasks = target[prop];\r\n if (tasks) {\r\n for (let i = 0; i < tasks.length; i++) {\r\n foundTasks.push(tasks[i]);\r\n }\r\n }\r\n }\r\n }\r\n return foundTasks;\r\n }\r\n let symbolEventName = zoneSymbolEventNames$1[eventName];\r\n if (!symbolEventName) {\r\n prepareEventNames(eventName);\r\n symbolEventName = zoneSymbolEventNames$1[eventName];\r\n }\r\n const captureFalseTasks = target[symbolEventName[FALSE_STR]];\r\n const captureTrueTasks = target[symbolEventName[TRUE_STR]];\r\n if (!captureFalseTasks) {\r\n return captureTrueTasks ? captureTrueTasks.slice() : [];\r\n }\r\n else {\r\n return captureTrueTasks ? captureFalseTasks.concat(captureTrueTasks) :\r\n captureFalseTasks.slice();\r\n }\r\n }\r\n function patchEventPrototype(global, api) {\r\n const Event = global['Event'];\r\n if (Event && Event.prototype) {\r\n api.patchMethod(Event.prototype, 'stopImmediatePropagation', (delegate) => function (self, args) {\r\n self[IMMEDIATE_PROPAGATION_SYMBOL] = true;\r\n // we need to call the native stopImmediatePropagation\r\n // in case in some hybrid application, some part of\r\n // application will be controlled by zone, some are not\r\n delegate && delegate.apply(self, args);\r\n });\r\n }\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n function patchCallbacks(api, target, targetName, method, callbacks) {\r\n const symbol = Zone.__symbol__(method);\r\n if (target[symbol]) {\r\n return;\r\n }\r\n const nativeDelegate = target[symbol] = target[method];\r\n target[method] = function (name, opts, options) {\r\n if (opts && opts.prototype) {\r\n callbacks.forEach(function (callback) {\r\n const source = `${targetName}.${method}::` + callback;\r\n const prototype = opts.prototype;\r\n if (prototype.hasOwnProperty(callback)) {\r\n const descriptor = api.ObjectGetOwnPropertyDescriptor(prototype, callback);\r\n if (descriptor && descriptor.value) {\r\n descriptor.value = api.wrapWithCurrentZone(descriptor.value, source);\r\n api._redefineProperty(opts.prototype, callback, descriptor);\r\n }\r\n else if (prototype[callback]) {\r\n prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);\r\n }\r\n }\r\n else if (prototype[callback]) {\r\n prototype[callback] = api.wrapWithCurrentZone(prototype[callback], source);\r\n }\r\n });\r\n }\r\n return nativeDelegate.call(target, name, opts, options);\r\n };\r\n api.attachOriginToPatched(target[method], nativeDelegate);\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n const globalEventHandlersEventNames = [\r\n 'abort',\r\n 'animationcancel',\r\n 'animationend',\r\n 'animationiteration',\r\n 'auxclick',\r\n 'beforeinput',\r\n 'blur',\r\n 'cancel',\r\n 'canplay',\r\n 'canplaythrough',\r\n 'change',\r\n 'compositionstart',\r\n 'compositionupdate',\r\n 'compositionend',\r\n 'cuechange',\r\n 'click',\r\n 'close',\r\n 'contextmenu',\r\n 'curechange',\r\n 'dblclick',\r\n 'drag',\r\n 'dragend',\r\n 'dragenter',\r\n 'dragexit',\r\n 'dragleave',\r\n 'dragover',\r\n 'drop',\r\n 'durationchange',\r\n 'emptied',\r\n 'ended',\r\n 'error',\r\n 'focus',\r\n 'focusin',\r\n 'focusout',\r\n 'gotpointercapture',\r\n 'input',\r\n 'invalid',\r\n 'keydown',\r\n 'keypress',\r\n 'keyup',\r\n 'load',\r\n 'loadstart',\r\n 'loadeddata',\r\n 'loadedmetadata',\r\n 'lostpointercapture',\r\n 'mousedown',\r\n 'mouseenter',\r\n 'mouseleave',\r\n 'mousemove',\r\n 'mouseout',\r\n 'mouseover',\r\n 'mouseup',\r\n 'mousewheel',\r\n 'orientationchange',\r\n 'pause',\r\n 'play',\r\n 'playing',\r\n 'pointercancel',\r\n 'pointerdown',\r\n 'pointerenter',\r\n 'pointerleave',\r\n 'pointerlockchange',\r\n 'mozpointerlockchange',\r\n 'webkitpointerlockerchange',\r\n 'pointerlockerror',\r\n 'mozpointerlockerror',\r\n 'webkitpointerlockerror',\r\n 'pointermove',\r\n 'pointout',\r\n 'pointerover',\r\n 'pointerup',\r\n 'progress',\r\n 'ratechange',\r\n 'reset',\r\n 'resize',\r\n 'scroll',\r\n 'seeked',\r\n 'seeking',\r\n 'select',\r\n 'selectionchange',\r\n 'selectstart',\r\n 'show',\r\n 'sort',\r\n 'stalled',\r\n 'submit',\r\n 'suspend',\r\n 'timeupdate',\r\n 'volumechange',\r\n 'touchcancel',\r\n 'touchmove',\r\n 'touchstart',\r\n 'touchend',\r\n 'transitioncancel',\r\n 'transitionend',\r\n 'waiting',\r\n 'wheel'\r\n ];\r\n const documentEventNames = [\r\n 'afterscriptexecute', 'beforescriptexecute', 'DOMContentLoaded', 'freeze', 'fullscreenchange',\r\n 'mozfullscreenchange', 'webkitfullscreenchange', 'msfullscreenchange', 'fullscreenerror',\r\n 'mozfullscreenerror', 'webkitfullscreenerror', 'msfullscreenerror', 'readystatechange',\r\n 'visibilitychange', 'resume'\r\n ];\r\n const windowEventNames = [\r\n 'absolutedeviceorientation',\r\n 'afterinput',\r\n 'afterprint',\r\n 'appinstalled',\r\n 'beforeinstallprompt',\r\n 'beforeprint',\r\n 'beforeunload',\r\n 'devicelight',\r\n 'devicemotion',\r\n 'deviceorientation',\r\n 'deviceorientationabsolute',\r\n 'deviceproximity',\r\n 'hashchange',\r\n 'languagechange',\r\n 'message',\r\n 'mozbeforepaint',\r\n 'offline',\r\n 'online',\r\n 'paint',\r\n 'pageshow',\r\n 'pagehide',\r\n 'popstate',\r\n 'rejectionhandled',\r\n 'storage',\r\n 'unhandledrejection',\r\n 'unload',\r\n 'userproximity',\r\n 'vrdisplayconnected',\r\n 'vrdisplaydisconnected',\r\n 'vrdisplaypresentchange'\r\n ];\r\n const htmlElementEventNames = [\r\n 'beforecopy', 'beforecut', 'beforepaste', 'copy', 'cut', 'paste', 'dragstart', 'loadend',\r\n 'animationstart', 'search', 'transitionrun', 'transitionstart', 'webkitanimationend',\r\n 'webkitanimationiteration', 'webkitanimationstart', 'webkittransitionend'\r\n ];\r\n const mediaElementEventNames = ['encrypted', 'waitingforkey', 'msneedkey', 'mozinterruptbegin', 'mozinterruptend'];\r\n const ieElementEventNames = [\r\n 'activate',\r\n 'afterupdate',\r\n 'ariarequest',\r\n 'beforeactivate',\r\n 'beforedeactivate',\r\n 'beforeeditfocus',\r\n 'beforeupdate',\r\n 'cellchange',\r\n 'controlselect',\r\n 'dataavailable',\r\n 'datasetchanged',\r\n 'datasetcomplete',\r\n 'errorupdate',\r\n 'filterchange',\r\n 'layoutcomplete',\r\n 'losecapture',\r\n 'move',\r\n 'moveend',\r\n 'movestart',\r\n 'propertychange',\r\n 'resizeend',\r\n 'resizestart',\r\n 'rowenter',\r\n 'rowexit',\r\n 'rowsdelete',\r\n 'rowsinserted',\r\n 'command',\r\n 'compassneedscalibration',\r\n 'deactivate',\r\n 'help',\r\n 'mscontentzoom',\r\n 'msmanipulationstatechanged',\r\n 'msgesturechange',\r\n 'msgesturedoubletap',\r\n 'msgestureend',\r\n 'msgesturehold',\r\n 'msgesturestart',\r\n 'msgesturetap',\r\n 'msgotpointercapture',\r\n 'msinertiastart',\r\n 'mslostpointercapture',\r\n 'mspointercancel',\r\n 'mspointerdown',\r\n 'mspointerenter',\r\n 'mspointerhover',\r\n 'mspointerleave',\r\n 'mspointermove',\r\n 'mspointerout',\r\n 'mspointerover',\r\n 'mspointerup',\r\n 'pointerout',\r\n 'mssitemodejumplistitemremoved',\r\n 'msthumbnailclick',\r\n 'stop',\r\n 'storagecommit'\r\n ];\r\n const webglEventNames = ['webglcontextrestored', 'webglcontextlost', 'webglcontextcreationerror'];\r\n const formEventNames = ['autocomplete', 'autocompleteerror'];\r\n const detailEventNames = ['toggle'];\r\n const frameEventNames = ['load'];\r\n const frameSetEventNames = ['blur', 'error', 'focus', 'load', 'resize', 'scroll', 'messageerror'];\r\n const marqueeEventNames = ['bounce', 'finish', 'start'];\r\n const XMLHttpRequestEventNames = [\r\n 'loadstart', 'progress', 'abort', 'error', 'load', 'progress', 'timeout', 'loadend',\r\n 'readystatechange'\r\n ];\r\n const IDBIndexEventNames = ['upgradeneeded', 'complete', 'abort', 'success', 'error', 'blocked', 'versionchange', 'close'];\r\n const websocketEventNames = ['close', 'error', 'open', 'message'];\r\n const workerEventNames = ['error', 'message'];\r\n const eventNames = globalEventHandlersEventNames.concat(webglEventNames, formEventNames, detailEventNames, documentEventNames, windowEventNames, htmlElementEventNames, ieElementEventNames);\r\n function filterProperties(target, onProperties, ignoreProperties) {\r\n if (!ignoreProperties || ignoreProperties.length === 0) {\r\n return onProperties;\r\n }\r\n const tip = ignoreProperties.filter(ip => ip.target === target);\r\n if (!tip || tip.length === 0) {\r\n return onProperties;\r\n }\r\n const targetIgnoreProperties = tip[0].ignoreProperties;\r\n return onProperties.filter(op => targetIgnoreProperties.indexOf(op) === -1);\r\n }\r\n function patchFilteredProperties(target, onProperties, ignoreProperties, prototype) {\r\n // check whether target is available, sometimes target will be undefined\r\n // because different browser or some 3rd party plugin.\r\n if (!target) {\r\n return;\r\n }\r\n const filteredProperties = filterProperties(target, onProperties, ignoreProperties);\r\n patchOnProperties(target, filteredProperties, prototype);\r\n }\r\n function propertyDescriptorPatch(api, _global) {\r\n if (isNode && !isMix) {\r\n return;\r\n }\r\n if (Zone[api.symbol('patchEvents')]) {\r\n // events are already been patched by legacy patch.\r\n return;\r\n }\r\n const supportsWebSocket = typeof WebSocket !== 'undefined';\r\n const ignoreProperties = _global['__Zone_ignore_on_properties'];\r\n // for browsers that we can patch the descriptor: Chrome & Firefox\r\n if (isBrowser) {\r\n const internalWindow = window;\r\n const ignoreErrorProperties = isIE ? [{ target: internalWindow, ignoreProperties: ['error'] }] : [];\r\n // in IE/Edge, onProp not exist in window object, but in WindowPrototype\r\n // so we need to pass WindowPrototype to check onProp exist or not\r\n patchFilteredProperties(internalWindow, eventNames.concat(['messageerror']), ignoreProperties ? ignoreProperties.concat(ignoreErrorProperties) : ignoreProperties, ObjectGetPrototypeOf(internalWindow));\r\n patchFilteredProperties(Document.prototype, eventNames, ignoreProperties);\r\n if (typeof internalWindow['SVGElement'] !== 'undefined') {\r\n patchFilteredProperties(internalWindow['SVGElement'].prototype, eventNames, ignoreProperties);\r\n }\r\n patchFilteredProperties(Element.prototype, eventNames, ignoreProperties);\r\n patchFilteredProperties(HTMLElement.prototype, eventNames, ignoreProperties);\r\n patchFilteredProperties(HTMLMediaElement.prototype, mediaElementEventNames, ignoreProperties);\r\n patchFilteredProperties(HTMLFrameSetElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\r\n patchFilteredProperties(HTMLBodyElement.prototype, windowEventNames.concat(frameSetEventNames), ignoreProperties);\r\n patchFilteredProperties(HTMLFrameElement.prototype, frameEventNames, ignoreProperties);\r\n patchFilteredProperties(HTMLIFrameElement.prototype, frameEventNames, ignoreProperties);\r\n const HTMLMarqueeElement = internalWindow['HTMLMarqueeElement'];\r\n if (HTMLMarqueeElement) {\r\n patchFilteredProperties(HTMLMarqueeElement.prototype, marqueeEventNames, ignoreProperties);\r\n }\r\n const Worker = internalWindow['Worker'];\r\n if (Worker) {\r\n patchFilteredProperties(Worker.prototype, workerEventNames, ignoreProperties);\r\n }\r\n }\r\n const XMLHttpRequest = _global['XMLHttpRequest'];\r\n if (XMLHttpRequest) {\r\n // XMLHttpRequest is not available in ServiceWorker, so we need to check here\r\n patchFilteredProperties(XMLHttpRequest.prototype, XMLHttpRequestEventNames, ignoreProperties);\r\n }\r\n const XMLHttpRequestEventTarget = _global['XMLHttpRequestEventTarget'];\r\n if (XMLHttpRequestEventTarget) {\r\n patchFilteredProperties(XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype, XMLHttpRequestEventNames, ignoreProperties);\r\n }\r\n if (typeof IDBIndex !== 'undefined') {\r\n patchFilteredProperties(IDBIndex.prototype, IDBIndexEventNames, ignoreProperties);\r\n patchFilteredProperties(IDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\r\n patchFilteredProperties(IDBOpenDBRequest.prototype, IDBIndexEventNames, ignoreProperties);\r\n patchFilteredProperties(IDBDatabase.prototype, IDBIndexEventNames, ignoreProperties);\r\n patchFilteredProperties(IDBTransaction.prototype, IDBIndexEventNames, ignoreProperties);\r\n patchFilteredProperties(IDBCursor.prototype, IDBIndexEventNames, ignoreProperties);\r\n }\r\n if (supportsWebSocket) {\r\n patchFilteredProperties(WebSocket.prototype, websocketEventNames, ignoreProperties);\r\n }\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n Zone.__load_patch('util', (global, Zone, api) => {\r\n api.patchOnProperties = patchOnProperties;\r\n api.patchMethod = patchMethod;\r\n api.bindArguments = bindArguments;\r\n api.patchMacroTask = patchMacroTask;\r\n // In earlier version of zone.js (<0.9.0), we use env name `__zone_symbol__BLACK_LISTED_EVENTS` to\r\n // define which events will not be patched by `Zone.js`.\r\n // In newer version (>=0.9.0), we change the env name to `__zone_symbol__UNPATCHED_EVENTS` to keep\r\n // the name consistent with angular repo.\r\n // The `__zone_symbol__BLACK_LISTED_EVENTS` is deprecated, but it is still be supported for\r\n // backwards compatibility.\r\n const SYMBOL_BLACK_LISTED_EVENTS = Zone.__symbol__('BLACK_LISTED_EVENTS');\r\n const SYMBOL_UNPATCHED_EVENTS = Zone.__symbol__('UNPATCHED_EVENTS');\r\n if (global[SYMBOL_UNPATCHED_EVENTS]) {\r\n global[SYMBOL_BLACK_LISTED_EVENTS] = global[SYMBOL_UNPATCHED_EVENTS];\r\n }\r\n if (global[SYMBOL_BLACK_LISTED_EVENTS]) {\r\n Zone[SYMBOL_BLACK_LISTED_EVENTS] = Zone[SYMBOL_UNPATCHED_EVENTS] =\r\n global[SYMBOL_BLACK_LISTED_EVENTS];\r\n }\r\n api.patchEventPrototype = patchEventPrototype;\r\n api.patchEventTarget = patchEventTarget;\r\n api.isIEOrEdge = isIEOrEdge;\r\n api.ObjectDefineProperty = ObjectDefineProperty;\r\n api.ObjectGetOwnPropertyDescriptor = ObjectGetOwnPropertyDescriptor;\r\n api.ObjectCreate = ObjectCreate;\r\n api.ArraySlice = ArraySlice;\r\n api.patchClass = patchClass;\r\n api.wrapWithCurrentZone = wrapWithCurrentZone;\r\n api.filterProperties = filterProperties;\r\n api.attachOriginToPatched = attachOriginToPatched;\r\n api._redefineProperty = Object.defineProperty;\r\n api.patchCallbacks = patchCallbacks;\r\n api.getGlobalObjects = () => ({ globalSources, zoneSymbolEventNames: zoneSymbolEventNames$1, eventNames, isBrowser, isMix, isNode, TRUE_STR,\r\n FALSE_STR, ZONE_SYMBOL_PREFIX, ADD_EVENT_LISTENER_STR, REMOVE_EVENT_LISTENER_STR });\r\n });\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n const taskSymbol = zoneSymbol('zoneTask');\r\n function patchTimer(window, setName, cancelName, nameSuffix) {\r\n let setNative = null;\r\n let clearNative = null;\r\n setName += nameSuffix;\r\n cancelName += nameSuffix;\r\n const tasksByHandleId = {};\r\n function scheduleTask(task) {\r\n const data = task.data;\r\n function timer() {\r\n try {\r\n task.invoke.apply(this, arguments);\r\n }\r\n finally {\r\n // issue-934, task will be cancelled\r\n // even it is a periodic task such as\r\n // setInterval\r\n if (!(task.data && task.data.isPeriodic)) {\r\n if (typeof data.handleId === 'number') {\r\n // in non-nodejs env, we remove timerId\r\n // from local cache\r\n delete tasksByHandleId[data.handleId];\r\n }\r\n else if (data.handleId) {\r\n // Node returns complex objects as handleIds\r\n // we remove task reference from timer object\r\n data.handleId[taskSymbol] = null;\r\n }\r\n }\r\n }\r\n }\r\n data.args[0] = timer;\r\n data.handleId = setNative.apply(window, data.args);\r\n return task;\r\n }\r\n function clearTask(task) { return clearNative(task.data.handleId); }\r\n setNative =\r\n patchMethod(window, setName, (delegate) => function (self, args) {\r\n if (typeof args[0] === 'function') {\r\n const options = {\r\n isPeriodic: nameSuffix === 'Interval',\r\n delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 :\r\n undefined,\r\n args: args\r\n };\r\n const task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, scheduleTask, clearTask);\r\n if (!task) {\r\n return task;\r\n }\r\n // Node.js must additionally support the ref and unref functions.\r\n const handle = task.data.handleId;\r\n if (typeof handle === 'number') {\r\n // for non nodejs env, we save handleId: task\r\n // mapping in local cache for clearTimeout\r\n tasksByHandleId[handle] = task;\r\n }\r\n else if (handle) {\r\n // for nodejs env, we save task\r\n // reference in timerId Object for clearTimeout\r\n handle[taskSymbol] = task;\r\n }\r\n // check whether handle is null, because some polyfill or browser\r\n // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame\r\n if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' &&\r\n typeof handle.unref === 'function') {\r\n task.ref = handle.ref.bind(handle);\r\n task.unref = handle.unref.bind(handle);\r\n }\r\n if (typeof handle === 'number' || handle) {\r\n return handle;\r\n }\r\n return task;\r\n }\r\n else {\r\n // cause an error by calling it directly.\r\n return delegate.apply(window, args);\r\n }\r\n });\r\n clearNative =\r\n patchMethod(window, cancelName, (delegate) => function (self, args) {\r\n const id = args[0];\r\n let task;\r\n if (typeof id === 'number') {\r\n // non nodejs env.\r\n task = tasksByHandleId[id];\r\n }\r\n else {\r\n // nodejs env.\r\n task = id && id[taskSymbol];\r\n // other environments.\r\n if (!task) {\r\n task = id;\r\n }\r\n }\r\n if (task && typeof task.type === 'string') {\r\n if (task.state !== 'notScheduled' &&\r\n (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {\r\n if (typeof id === 'number') {\r\n delete tasksByHandleId[id];\r\n }\r\n else if (id) {\r\n id[taskSymbol] = null;\r\n }\r\n // Do not cancel already canceled functions\r\n task.zone.cancelTask(task);\r\n }\r\n }\r\n else {\r\n // cause an error by calling it directly.\r\n delegate.apply(window, args);\r\n }\r\n });\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n function patchCustomElements(_global, api) {\r\n const { isBrowser, isMix } = api.getGlobalObjects();\r\n if ((!isBrowser && !isMix) || !_global['customElements'] || !('customElements' in _global)) {\r\n return;\r\n }\r\n const callbacks = ['connectedCallback', 'disconnectedCallback', 'adoptedCallback', 'attributeChangedCallback'];\r\n api.patchCallbacks(api, _global.customElements, 'customElements', 'define', callbacks);\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n function eventTargetPatch(_global, api) {\r\n if (Zone[api.symbol('patchEventTarget')]) {\r\n // EventTarget is already patched.\r\n return;\r\n }\r\n const { eventNames, zoneSymbolEventNames, TRUE_STR, FALSE_STR, ZONE_SYMBOL_PREFIX } = api.getGlobalObjects();\r\n // predefine all __zone_symbol__ + eventName + true/false string\r\n for (let i = 0; i < eventNames.length; i++) {\r\n const eventName = eventNames[i];\r\n const falseEventName = eventName + FALSE_STR;\r\n const trueEventName = eventName + TRUE_STR;\r\n const symbol = ZONE_SYMBOL_PREFIX + falseEventName;\r\n const symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;\r\n zoneSymbolEventNames[eventName] = {};\r\n zoneSymbolEventNames[eventName][FALSE_STR] = symbol;\r\n zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;\r\n }\r\n const EVENT_TARGET = _global['EventTarget'];\r\n if (!EVENT_TARGET || !EVENT_TARGET.prototype) {\r\n return;\r\n }\r\n api.patchEventTarget(_global, [EVENT_TARGET && EVENT_TARGET.prototype]);\r\n return true;\r\n }\r\n function patchEvent(global, api) {\r\n api.patchEventPrototype(global, api);\r\n }\r\n\r\n /**\r\n * @license\r\n * Copyright Google Inc. All Rights Reserved.\r\n *\r\n * Use of this source code is governed by an MIT-style license that can be\r\n * found in the LICENSE file at https://angular.io/license\r\n */\r\n Zone.__load_patch('legacy', (global) => {\r\n const legacyPatch = global[Zone.__symbol__('legacyPatch')];\r\n if (legacyPatch) {\r\n legacyPatch();\r\n }\r\n });\r\n Zone.__load_patch('timers', (global) => {\r\n const set = 'set';\r\n const clear = 'clear';\r\n patchTimer(global, set, clear, 'Timeout');\r\n patchTimer(global, set, clear, 'Interval');\r\n patchTimer(global, set, clear, 'Immediate');\r\n });\r\n Zone.__load_patch('requestAnimationFrame', (global) => {\r\n patchTimer(global, 'request', 'cancel', 'AnimationFrame');\r\n patchTimer(global, 'mozRequest', 'mozCancel', 'AnimationFrame');\r\n patchTimer(global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');\r\n });\r\n Zone.__load_patch('blocking', (global, Zone) => {\r\n const blockingMethods = ['alert', 'prompt', 'confirm'];\r\n for (let i = 0; i < blockingMethods.length; i++) {\r\n const name = blockingMethods[i];\r\n patchMethod(global, name, (delegate, symbol, name) => {\r\n return function (s, args) {\r\n return Zone.current.run(delegate, global, args, name);\r\n };\r\n });\r\n }\r\n });\r\n Zone.__load_patch('EventTarget', (global, Zone, api) => {\r\n patchEvent(global, api);\r\n eventTargetPatch(global, api);\r\n // patch XMLHttpRequestEventTarget's addEventListener/removeEventListener\r\n const XMLHttpRequestEventTarget = global['XMLHttpRequestEventTarget'];\r\n if (XMLHttpRequestEventTarget && XMLHttpRequestEventTarget.prototype) {\r\n api.patchEventTarget(global, [XMLHttpRequestEventTarget.prototype]);\r\n }\r\n patchClass('MutationObserver');\r\n patchClass('WebKitMutationObserver');\r\n patchClass('IntersectionObserver');\r\n patchClass('FileReader');\r\n });\r\n Zone.__load_patch('on_property', (global, Zone, api) => {\r\n propertyDescriptorPatch(api, global);\r\n });\r\n Zone.__load_patch('customElements', (global, Zone, api) => {\r\n patchCustomElements(global, api);\r\n });\r\n Zone.__load_patch('XHR', (global, Zone) => {\r\n // Treat XMLHttpRequest as a macrotask.\r\n patchXHR(global);\r\n const XHR_TASK = zoneSymbol('xhrTask');\r\n const XHR_SYNC = zoneSymbol('xhrSync');\r\n const XHR_LISTENER = zoneSymbol('xhrListener');\r\n const XHR_SCHEDULED = zoneSymbol('xhrScheduled');\r\n const XHR_URL = zoneSymbol('xhrURL');\r\n const XHR_ERROR_BEFORE_SCHEDULED = zoneSymbol('xhrErrorBeforeScheduled');\r\n function patchXHR(window) {\r\n const XMLHttpRequest = window['XMLHttpRequest'];\r\n if (!XMLHttpRequest) {\r\n // XMLHttpRequest is not available in service worker\r\n return;\r\n }\r\n const XMLHttpRequestPrototype = XMLHttpRequest.prototype;\r\n function findPendingTask(target) { return target[XHR_TASK]; }\r\n let oriAddListener = XMLHttpRequestPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\r\n let oriRemoveListener = XMLHttpRequestPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\r\n if (!oriAddListener) {\r\n const XMLHttpRequestEventTarget = window['XMLHttpRequestEventTarget'];\r\n if (XMLHttpRequestEventTarget) {\r\n const XMLHttpRequestEventTargetPrototype = XMLHttpRequestEventTarget.prototype;\r\n oriAddListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_ADD_EVENT_LISTENER];\r\n oriRemoveListener = XMLHttpRequestEventTargetPrototype[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\r\n }\r\n }\r\n const READY_STATE_CHANGE = 'readystatechange';\r\n const SCHEDULED = 'scheduled';\r\n function scheduleTask(task) {\r\n const data = task.data;\r\n const target = data.target;\r\n target[XHR_SCHEDULED] = false;\r\n target[XHR_ERROR_BEFORE_SCHEDULED] = false;\r\n // remove existing event listener\r\n const listener = target[XHR_LISTENER];\r\n if (!oriAddListener) {\r\n oriAddListener = target[ZONE_SYMBOL_ADD_EVENT_LISTENER];\r\n oriRemoveListener = target[ZONE_SYMBOL_REMOVE_EVENT_LISTENER];\r\n }\r\n if (listener) {\r\n oriRemoveListener.call(target, READY_STATE_CHANGE, listener);\r\n }\r\n const newListener = target[XHR_LISTENER] = () => {\r\n if (target.readyState === target.DONE) {\r\n // sometimes on some browsers XMLHttpRequest will fire onreadystatechange with\r\n // readyState=4 multiple times, so we need to check task state here\r\n if (!data.aborted && target[XHR_SCHEDULED] && task.state === SCHEDULED) {\r\n // check whether the xhr has registered onload listener\r\n // if that is the case, the task should invoke after all\r\n // onload listeners finish.\r\n const loadTasks = target[Zone.__symbol__('loadfalse')];\r\n if (loadTasks && loadTasks.length > 0) {\r\n const oriInvoke = task.invoke;\r\n task.invoke = function () {\r\n // need to load the tasks again, because in other\r\n // load listener, they may remove themselves\r\n const loadTasks = target[Zone.__symbol__('loadfalse')];\r\n for (let i = 0; i < loadTasks.length; i++) {\r\n if (loadTasks[i] === task) {\r\n loadTasks.splice(i, 1);\r\n }\r\n }\r\n if (!data.aborted && task.state === SCHEDULED) {\r\n oriInvoke.call(task);\r\n }\r\n };\r\n loadTasks.push(task);\r\n }\r\n else {\r\n task.invoke();\r\n }\r\n }\r\n else if (!data.aborted && target[XHR_SCHEDULED] === false) {\r\n // error occurs when xhr.send()\r\n target[XHR_ERROR_BEFORE_SCHEDULED] = true;\r\n }\r\n }\r\n };\r\n oriAddListener.call(target, READY_STATE_CHANGE, newListener);\r\n const storedTask = target[XHR_TASK];\r\n if (!storedTask) {\r\n target[XHR_TASK] = task;\r\n }\r\n sendNative.apply(target, data.args);\r\n target[XHR_SCHEDULED] = true;\r\n return task;\r\n }\r\n function placeholderCallback() { }\r\n function clearTask(task) {\r\n const data = task.data;\r\n // Note - ideally, we would call data.target.removeEventListener here, but it's too late\r\n // to prevent it from firing. So instead, we store info for the event listener.\r\n data.aborted = true;\r\n return abortNative.apply(data.target, data.args);\r\n }\r\n const openNative = patchMethod(XMLHttpRequestPrototype, 'open', () => function (self, args) {\r\n self[XHR_SYNC] = args[2] == false;\r\n self[XHR_URL] = args[1];\r\n return openNative.apply(self, args);\r\n });\r\n const XMLHTTPREQUEST_SOURCE = 'XMLHttpRequest.send';\r\n const fetchTaskAborting = zoneSymbol('fetchTaskAborting');\r\n const fetchTaskScheduling = zoneSymbol('fetchTaskScheduling');\r\n const sendNative = patchMethod(XMLHttpRequestPrototype, 'send', () => function (self, args) {\r\n if (Zone.current[fetchTaskScheduling] === true) {\r\n // a fetch is scheduling, so we are using xhr to polyfill fetch\r\n // and because we already schedule macroTask for fetch, we should\r\n // not schedule a macroTask for xhr again\r\n return sendNative.apply(self, args);\r\n }\r\n if (self[XHR_SYNC]) {\r\n // if the XHR is sync there is no task to schedule, just execute the code.\r\n return sendNative.apply(self, args);\r\n }\r\n else {\r\n const options = { target: self, url: self[XHR_URL], isPeriodic: false, args: args, aborted: false };\r\n const task = scheduleMacroTaskWithCurrentZone(XMLHTTPREQUEST_SOURCE, placeholderCallback, options, scheduleTask, clearTask);\r\n if (self && self[XHR_ERROR_BEFORE_SCHEDULED] === true && !options.aborted &&\r\n task.state === SCHEDULED) {\r\n // xhr request throw error when send\r\n // we should invoke task instead of leaving a scheduled\r\n // pending macroTask\r\n task.invoke();\r\n }\r\n }\r\n });\r\n const abortNative = patchMethod(XMLHttpRequestPrototype, 'abort', () => function (self, args) {\r\n const task = findPendingTask(self);\r\n if (task && typeof task.type == 'string') {\r\n // If the XHR has already completed, do nothing.\r\n // If the XHR has already been aborted, do nothing.\r\n // Fix #569, call abort multiple times before done will cause\r\n // macroTask task count be negative number\r\n if (task.cancelFn == null || (task.data && task.data.aborted)) {\r\n return;\r\n }\r\n task.zone.cancelTask(task);\r\n }\r\n else if (Zone.current[fetchTaskAborting] === true) {\r\n // the abort is called from fetch polyfill, we need to call native abort of XHR.\r\n return abortNative.apply(self, args);\r\n }\r\n // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no\r\n // task\r\n // to cancel. Do nothing.\r\n });\r\n }\r\n });\r\n Zone.__load_patch('geolocation', (global) => {\r\n /// GEO_LOCATION\r\n if (global['navigator'] && global['navigator'].geolocation) {\r\n patchPrototype(global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);\r\n }\r\n });\r\n Zone.__load_patch('PromiseRejectionEvent', (global, Zone) => {\r\n // handle unhandled promise rejection\r\n function findPromiseRejectionHandler(evtName) {\r\n return function (e) {\r\n const eventTasks = findEventTasks(global, evtName);\r\n eventTasks.forEach(eventTask => {\r\n // windows has added unhandledrejection event listener\r\n // trigger the event listener\r\n const PromiseRejectionEvent = global['PromiseRejectionEvent'];\r\n if (PromiseRejectionEvent) {\r\n const evt = new PromiseRejectionEvent(evtName, { promise: e.promise, reason: e.rejection });\r\n eventTask.invoke(evt);\r\n }\r\n });\r\n };\r\n }\r\n if (global['PromiseRejectionEvent']) {\r\n Zone[zoneSymbol('unhandledPromiseRejectionHandler')] =\r\n findPromiseRejectionHandler('unhandledrejection');\r\n Zone[zoneSymbol('rejectionHandledHandler')] =\r\n findPromiseRejectionHandler('rejectionhandled');\r\n }\r\n });\r\n\r\n})));\r\n","/*!\r\n * The buffer module from node.js, for the browser.\r\n *\r\n * @author Feross Aboukhadijeh \r\n * @license MIT\r\n */\r\n/* eslint-disable no-proto */\r\n\r\n'use strict'\r\n\r\nvar base64 = require('base64-js')\r\nvar ieee754 = require('ieee754')\r\nvar customInspectSymbol =\r\n (typeof Symbol === 'function' && typeof Symbol['for'] === 'function') // eslint-disable-line dot-notation\r\n ? Symbol['for']('nodejs.util.inspect.custom') // eslint-disable-line dot-notation\r\n : null\r\n\r\nexports.Buffer = Buffer\r\nexports.SlowBuffer = SlowBuffer\r\nexports.INSPECT_MAX_BYTES = 50\r\n\r\nvar K_MAX_LENGTH = 0x7fffffff\r\nexports.kMaxLength = K_MAX_LENGTH\r\n\r\n/**\r\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\r\n * === true Use Uint8Array implementation (fastest)\r\n * === false Print warning and recommend using `buffer` v4.x which has an Object\r\n * implementation (most compatible, even IE6)\r\n *\r\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\r\n * Opera 11.6+, iOS 4.2+.\r\n *\r\n * We report that the browser does not support typed arrays if the are not subclassable\r\n * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`\r\n * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support\r\n * for __proto__ and has a buggy typed array implementation.\r\n */\r\nBuffer.TYPED_ARRAY_SUPPORT = typedArraySupport()\r\n\r\nif (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&\r\n typeof console.error === 'function') {\r\n console.error(\r\n 'This browser lacks typed array (Uint8Array) support which is required by ' +\r\n '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'\r\n )\r\n}\r\n\r\nfunction typedArraySupport () {\r\n // Can typed array instances can be augmented?\r\n try {\r\n var arr = new Uint8Array(1)\r\n var proto = { foo: function () { return 42 } }\r\n Object.setPrototypeOf(proto, Uint8Array.prototype)\r\n Object.setPrototypeOf(arr, proto)\r\n return arr.foo() === 42\r\n } catch (e) {\r\n return false\r\n }\r\n}\r\n\r\nObject.defineProperty(Buffer.prototype, 'parent', {\r\n enumerable: true,\r\n get: function () {\r\n if (!Buffer.isBuffer(this)) return undefined\r\n return this.buffer\r\n }\r\n})\r\n\r\nObject.defineProperty(Buffer.prototype, 'offset', {\r\n enumerable: true,\r\n get: function () {\r\n if (!Buffer.isBuffer(this)) return undefined\r\n return this.byteOffset\r\n }\r\n})\r\n\r\nfunction createBuffer (length) {\r\n if (length > K_MAX_LENGTH) {\r\n throw new RangeError('The value \"' + length + '\" is invalid for option \"size\"')\r\n }\r\n // Return an augmented `Uint8Array` instance\r\n var buf = new Uint8Array(length)\r\n Object.setPrototypeOf(buf, Buffer.prototype)\r\n return buf\r\n}\r\n\r\n/**\r\n * The Buffer constructor returns instances of `Uint8Array` that have their\r\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\r\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\r\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\r\n * returns a single octet.\r\n *\r\n * The `Uint8Array` prototype remains unmodified.\r\n */\r\n\r\nfunction Buffer (arg, encodingOrOffset, length) {\r\n // Common case.\r\n if (typeof arg === 'number') {\r\n if (typeof encodingOrOffset === 'string') {\r\n throw new TypeError(\r\n 'The \"string\" argument must be of type string. Received type number'\r\n )\r\n }\r\n return allocUnsafe(arg)\r\n }\r\n return from(arg, encodingOrOffset, length)\r\n}\r\n\r\nBuffer.poolSize = 8192 // not used by this implementation\r\n\r\nfunction from (value, encodingOrOffset, length) {\r\n if (typeof value === 'string') {\r\n return fromString(value, encodingOrOffset)\r\n }\r\n\r\n if (ArrayBuffer.isView(value)) {\r\n return fromArrayView(value)\r\n }\r\n\r\n if (value == null) {\r\n throw new TypeError(\r\n 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\r\n 'or Array-like Object. Received type ' + (typeof value)\r\n )\r\n }\r\n\r\n if (isInstance(value, ArrayBuffer) ||\r\n (value && isInstance(value.buffer, ArrayBuffer))) {\r\n return fromArrayBuffer(value, encodingOrOffset, length)\r\n }\r\n\r\n if (typeof SharedArrayBuffer !== 'undefined' &&\r\n (isInstance(value, SharedArrayBuffer) ||\r\n (value && isInstance(value.buffer, SharedArrayBuffer)))) {\r\n return fromArrayBuffer(value, encodingOrOffset, length)\r\n }\r\n\r\n if (typeof value === 'number') {\r\n throw new TypeError(\r\n 'The \"value\" argument must not be of type number. Received type number'\r\n )\r\n }\r\n\r\n var valueOf = value.valueOf && value.valueOf()\r\n if (valueOf != null && valueOf !== value) {\r\n return Buffer.from(valueOf, encodingOrOffset, length)\r\n }\r\n\r\n var b = fromObject(value)\r\n if (b) return b\r\n\r\n if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&\r\n typeof value[Symbol.toPrimitive] === 'function') {\r\n return Buffer.from(\r\n value[Symbol.toPrimitive]('string'), encodingOrOffset, length\r\n )\r\n }\r\n\r\n throw new TypeError(\r\n 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\r\n 'or Array-like Object. Received type ' + (typeof value)\r\n )\r\n}\r\n\r\n/**\r\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\r\n * if value is a number.\r\n * Buffer.from(str[, encoding])\r\n * Buffer.from(array)\r\n * Buffer.from(buffer)\r\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\r\n **/\r\nBuffer.from = function (value, encodingOrOffset, length) {\r\n return from(value, encodingOrOffset, length)\r\n}\r\n\r\n// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:\r\n// https://github.com/feross/buffer/pull/148\r\nObject.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)\r\nObject.setPrototypeOf(Buffer, Uint8Array)\r\n\r\nfunction assertSize (size) {\r\n if (typeof size !== 'number') {\r\n throw new TypeError('\"size\" argument must be of type number')\r\n } else if (size < 0) {\r\n throw new RangeError('The value \"' + size + '\" is invalid for option \"size\"')\r\n }\r\n}\r\n\r\nfunction alloc (size, fill, encoding) {\r\n assertSize(size)\r\n if (size <= 0) {\r\n return createBuffer(size)\r\n }\r\n if (fill !== undefined) {\r\n // Only pay attention to encoding if it's a string. This\r\n // prevents accidentally sending in a number that would\r\n // be interpreted as a start offset.\r\n return typeof encoding === 'string'\r\n ? createBuffer(size).fill(fill, encoding)\r\n : createBuffer(size).fill(fill)\r\n }\r\n return createBuffer(size)\r\n}\r\n\r\n/**\r\n * Creates a new filled Buffer instance.\r\n * alloc(size[, fill[, encoding]])\r\n **/\r\nBuffer.alloc = function (size, fill, encoding) {\r\n return alloc(size, fill, encoding)\r\n}\r\n\r\nfunction allocUnsafe (size) {\r\n assertSize(size)\r\n return createBuffer(size < 0 ? 0 : checked(size) | 0)\r\n}\r\n\r\n/**\r\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\r\n * */\r\nBuffer.allocUnsafe = function (size) {\r\n return allocUnsafe(size)\r\n}\r\n/**\r\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\r\n */\r\nBuffer.allocUnsafeSlow = function (size) {\r\n return allocUnsafe(size)\r\n}\r\n\r\nfunction fromString (string, encoding) {\r\n if (typeof encoding !== 'string' || encoding === '') {\r\n encoding = 'utf8'\r\n }\r\n\r\n if (!Buffer.isEncoding(encoding)) {\r\n throw new TypeError('Unknown encoding: ' + encoding)\r\n }\r\n\r\n var length = byteLength(string, encoding) | 0\r\n var buf = createBuffer(length)\r\n\r\n var actual = buf.write(string, encoding)\r\n\r\n if (actual !== length) {\r\n // Writing a hex string, for example, that contains invalid characters will\r\n // cause everything after the first invalid character to be ignored. (e.g.\r\n // 'abxxcd' will be treated as 'ab')\r\n buf = buf.slice(0, actual)\r\n }\r\n\r\n return buf\r\n}\r\n\r\nfunction fromArrayLike (array) {\r\n var length = array.length < 0 ? 0 : checked(array.length) | 0\r\n var buf = createBuffer(length)\r\n for (var i = 0; i < length; i += 1) {\r\n buf[i] = array[i] & 255\r\n }\r\n return buf\r\n}\r\n\r\nfunction fromArrayView (arrayView) {\r\n if (isInstance(arrayView, Uint8Array)) {\r\n var copy = new Uint8Array(arrayView)\r\n return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength)\r\n }\r\n return fromArrayLike(arrayView)\r\n}\r\n\r\nfunction fromArrayBuffer (array, byteOffset, length) {\r\n if (byteOffset < 0 || array.byteLength < byteOffset) {\r\n throw new RangeError('\"offset\" is outside of buffer bounds')\r\n }\r\n\r\n if (array.byteLength < byteOffset + (length || 0)) {\r\n throw new RangeError('\"length\" is outside of buffer bounds')\r\n }\r\n\r\n var buf\r\n if (byteOffset === undefined && length === undefined) {\r\n buf = new Uint8Array(array)\r\n } else if (length === undefined) {\r\n buf = new Uint8Array(array, byteOffset)\r\n } else {\r\n buf = new Uint8Array(array, byteOffset, length)\r\n }\r\n\r\n // Return an augmented `Uint8Array` instance\r\n Object.setPrototypeOf(buf, Buffer.prototype)\r\n\r\n return buf\r\n}\r\n\r\nfunction fromObject (obj) {\r\n if (Buffer.isBuffer(obj)) {\r\n var len = checked(obj.length) | 0\r\n var buf = createBuffer(len)\r\n\r\n if (buf.length === 0) {\r\n return buf\r\n }\r\n\r\n obj.copy(buf, 0, 0, len)\r\n return buf\r\n }\r\n\r\n if (obj.length !== undefined) {\r\n if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {\r\n return createBuffer(0)\r\n }\r\n return fromArrayLike(obj)\r\n }\r\n\r\n if (obj.type === 'Buffer' && Array.isArray(obj.data)) {\r\n return fromArrayLike(obj.data)\r\n }\r\n}\r\n\r\nfunction checked (length) {\r\n // Note: cannot use `length < K_MAX_LENGTH` here because that fails when\r\n // length is NaN (which is otherwise coerced to zero.)\r\n if (length >= K_MAX_LENGTH) {\r\n throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\r\n 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')\r\n }\r\n return length | 0\r\n}\r\n\r\nfunction SlowBuffer (length) {\r\n if (+length != length) { // eslint-disable-line eqeqeq\r\n length = 0\r\n }\r\n return Buffer.alloc(+length)\r\n}\r\n\r\nBuffer.isBuffer = function isBuffer (b) {\r\n return b != null && b._isBuffer === true &&\r\n b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false\r\n}\r\n\r\nBuffer.compare = function compare (a, b) {\r\n if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)\r\n if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)\r\n if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\r\n throw new TypeError(\r\n 'The \"buf1\", \"buf2\" arguments must be one of type Buffer or Uint8Array'\r\n )\r\n }\r\n\r\n if (a === b) return 0\r\n\r\n var x = a.length\r\n var y = b.length\r\n\r\n for (var i = 0, len = Math.min(x, y); i < len; ++i) {\r\n if (a[i] !== b[i]) {\r\n x = a[i]\r\n y = b[i]\r\n break\r\n }\r\n }\r\n\r\n if (x < y) return -1\r\n if (y < x) return 1\r\n return 0\r\n}\r\n\r\nBuffer.isEncoding = function isEncoding (encoding) {\r\n switch (String(encoding).toLowerCase()) {\r\n case 'hex':\r\n case 'utf8':\r\n case 'utf-8':\r\n case 'ascii':\r\n case 'latin1':\r\n case 'binary':\r\n case 'base64':\r\n case 'ucs2':\r\n case 'ucs-2':\r\n case 'utf16le':\r\n case 'utf-16le':\r\n return true\r\n default:\r\n return false\r\n }\r\n}\r\n\r\nBuffer.concat = function concat (list, length) {\r\n if (!Array.isArray(list)) {\r\n throw new TypeError('\"list\" argument must be an Array of Buffers')\r\n }\r\n\r\n if (list.length === 0) {\r\n return Buffer.alloc(0)\r\n }\r\n\r\n var i\r\n if (length === undefined) {\r\n length = 0\r\n for (i = 0; i < list.length; ++i) {\r\n length += list[i].length\r\n }\r\n }\r\n\r\n var buffer = Buffer.allocUnsafe(length)\r\n var pos = 0\r\n for (i = 0; i < list.length; ++i) {\r\n var buf = list[i]\r\n if (isInstance(buf, Uint8Array)) {\r\n if (pos + buf.length > buffer.length) {\r\n Buffer.from(buf).copy(buffer, pos)\r\n } else {\r\n Uint8Array.prototype.set.call(\r\n buffer,\r\n buf,\r\n pos\r\n )\r\n }\r\n } else if (!Buffer.isBuffer(buf)) {\r\n throw new TypeError('\"list\" argument must be an Array of Buffers')\r\n } else {\r\n buf.copy(buffer, pos)\r\n }\r\n pos += buf.length\r\n }\r\n return buffer\r\n}\r\n\r\nfunction byteLength (string, encoding) {\r\n if (Buffer.isBuffer(string)) {\r\n return string.length\r\n }\r\n if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {\r\n return string.byteLength\r\n }\r\n if (typeof string !== 'string') {\r\n throw new TypeError(\r\n 'The \"string\" argument must be one of type string, Buffer, or ArrayBuffer. ' +\r\n 'Received type ' + typeof string\r\n )\r\n }\r\n\r\n var len = string.length\r\n var mustMatch = (arguments.length > 2 && arguments[2] === true)\r\n if (!mustMatch && len === 0) return 0\r\n\r\n // Use a for loop to avoid recursion\r\n var loweredCase = false\r\n for (;;) {\r\n switch (encoding) {\r\n case 'ascii':\r\n case 'latin1':\r\n case 'binary':\r\n return len\r\n case 'utf8':\r\n case 'utf-8':\r\n return utf8ToBytes(string).length\r\n case 'ucs2':\r\n case 'ucs-2':\r\n case 'utf16le':\r\n case 'utf-16le':\r\n return len * 2\r\n case 'hex':\r\n return len >>> 1\r\n case 'base64':\r\n return base64ToBytes(string).length\r\n default:\r\n if (loweredCase) {\r\n return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8\r\n }\r\n encoding = ('' + encoding).toLowerCase()\r\n loweredCase = true\r\n }\r\n }\r\n}\r\nBuffer.byteLength = byteLength\r\n\r\nfunction slowToString (encoding, start, end) {\r\n var loweredCase = false\r\n\r\n // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\r\n // property of a typed array.\r\n\r\n // This behaves neither like String nor Uint8Array in that we set start/end\r\n // to their upper/lower bounds if the value passed is out of range.\r\n // undefined is handled specially as per ECMA-262 6th Edition,\r\n // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\r\n if (start === undefined || start < 0) {\r\n start = 0\r\n }\r\n // Return early if start > this.length. Done here to prevent potential uint32\r\n // coercion fail below.\r\n if (start > this.length) {\r\n return ''\r\n }\r\n\r\n if (end === undefined || end > this.length) {\r\n end = this.length\r\n }\r\n\r\n if (end <= 0) {\r\n return ''\r\n }\r\n\r\n // Force coercion to uint32. This will also coerce falsey/NaN values to 0.\r\n end >>>= 0\r\n start >>>= 0\r\n\r\n if (end <= start) {\r\n return ''\r\n }\r\n\r\n if (!encoding) encoding = 'utf8'\r\n\r\n while (true) {\r\n switch (encoding) {\r\n case 'hex':\r\n return hexSlice(this, start, end)\r\n\r\n case 'utf8':\r\n case 'utf-8':\r\n return utf8Slice(this, start, end)\r\n\r\n case 'ascii':\r\n return asciiSlice(this, start, end)\r\n\r\n case 'latin1':\r\n case 'binary':\r\n return latin1Slice(this, start, end)\r\n\r\n case 'base64':\r\n return base64Slice(this, start, end)\r\n\r\n case 'ucs2':\r\n case 'ucs-2':\r\n case 'utf16le':\r\n case 'utf-16le':\r\n return utf16leSlice(this, start, end)\r\n\r\n default:\r\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\r\n encoding = (encoding + '').toLowerCase()\r\n loweredCase = true\r\n }\r\n }\r\n}\r\n\r\n// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)\r\n// to detect a Buffer instance. It's not possible to use `instanceof Buffer`\r\n// reliably in a browserify context because there could be multiple different\r\n// copies of the 'buffer' package in use. This method works even for Buffer\r\n// instances that were created from another copy of the `buffer` package.\r\n// See: https://github.com/feross/buffer/issues/154\r\nBuffer.prototype._isBuffer = true\r\n\r\nfunction swap (b, n, m) {\r\n var i = b[n]\r\n b[n] = b[m]\r\n b[m] = i\r\n}\r\n\r\nBuffer.prototype.swap16 = function swap16 () {\r\n var len = this.length\r\n if (len % 2 !== 0) {\r\n throw new RangeError('Buffer size must be a multiple of 16-bits')\r\n }\r\n for (var i = 0; i < len; i += 2) {\r\n swap(this, i, i + 1)\r\n }\r\n return this\r\n}\r\n\r\nBuffer.prototype.swap32 = function swap32 () {\r\n var len = this.length\r\n if (len % 4 !== 0) {\r\n throw new RangeError('Buffer size must be a multiple of 32-bits')\r\n }\r\n for (var i = 0; i < len; i += 4) {\r\n swap(this, i, i + 3)\r\n swap(this, i + 1, i + 2)\r\n }\r\n return this\r\n}\r\n\r\nBuffer.prototype.swap64 = function swap64 () {\r\n var len = this.length\r\n if (len % 8 !== 0) {\r\n throw new RangeError('Buffer size must be a multiple of 64-bits')\r\n }\r\n for (var i = 0; i < len; i += 8) {\r\n swap(this, i, i + 7)\r\n swap(this, i + 1, i + 6)\r\n swap(this, i + 2, i + 5)\r\n swap(this, i + 3, i + 4)\r\n }\r\n return this\r\n}\r\n\r\nBuffer.prototype.toString = function toString () {\r\n var length = this.length\r\n if (length === 0) return ''\r\n if (arguments.length === 0) return utf8Slice(this, 0, length)\r\n return slowToString.apply(this, arguments)\r\n}\r\n\r\nBuffer.prototype.toLocaleString = Buffer.prototype.toString\r\n\r\nBuffer.prototype.equals = function equals (b) {\r\n if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\r\n if (this === b) return true\r\n return Buffer.compare(this, b) === 0\r\n}\r\n\r\nBuffer.prototype.inspect = function inspect () {\r\n var str = ''\r\n var max = exports.INSPECT_MAX_BYTES\r\n str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()\r\n if (this.length > max) str += ' ... '\r\n return ''\r\n}\r\nif (customInspectSymbol) {\r\n Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect\r\n}\r\n\r\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\r\n if (isInstance(target, Uint8Array)) {\r\n target = Buffer.from(target, target.offset, target.byteLength)\r\n }\r\n if (!Buffer.isBuffer(target)) {\r\n throw new TypeError(\r\n 'The \"target\" argument must be one of type Buffer or Uint8Array. ' +\r\n 'Received type ' + (typeof target)\r\n )\r\n }\r\n\r\n if (start === undefined) {\r\n start = 0\r\n }\r\n if (end === undefined) {\r\n end = target ? target.length : 0\r\n }\r\n if (thisStart === undefined) {\r\n thisStart = 0\r\n }\r\n if (thisEnd === undefined) {\r\n thisEnd = this.length\r\n }\r\n\r\n if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\r\n throw new RangeError('out of range index')\r\n }\r\n\r\n if (thisStart >= thisEnd && start >= end) {\r\n return 0\r\n }\r\n if (thisStart >= thisEnd) {\r\n return -1\r\n }\r\n if (start >= end) {\r\n return 1\r\n }\r\n\r\n start >>>= 0\r\n end >>>= 0\r\n thisStart >>>= 0\r\n thisEnd >>>= 0\r\n\r\n if (this === target) return 0\r\n\r\n var x = thisEnd - thisStart\r\n var y = end - start\r\n var len = Math.min(x, y)\r\n\r\n var thisCopy = this.slice(thisStart, thisEnd)\r\n var targetCopy = target.slice(start, end)\r\n\r\n for (var i = 0; i < len; ++i) {\r\n if (thisCopy[i] !== targetCopy[i]) {\r\n x = thisCopy[i]\r\n y = targetCopy[i]\r\n break\r\n }\r\n }\r\n\r\n if (x < y) return -1\r\n if (y < x) return 1\r\n return 0\r\n}\r\n\r\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\r\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\r\n//\r\n// Arguments:\r\n// - buffer - a Buffer to search\r\n// - val - a string, Buffer, or number\r\n// - byteOffset - an index into `buffer`; will be clamped to an int32\r\n// - encoding - an optional encoding, relevant is val is a string\r\n// - dir - true for indexOf, false for lastIndexOf\r\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\r\n // Empty buffer means no match\r\n if (buffer.length === 0) return -1\r\n\r\n // Normalize byteOffset\r\n if (typeof byteOffset === 'string') {\r\n encoding = byteOffset\r\n byteOffset = 0\r\n } else if (byteOffset > 0x7fffffff) {\r\n byteOffset = 0x7fffffff\r\n } else if (byteOffset < -0x80000000) {\r\n byteOffset = -0x80000000\r\n }\r\n byteOffset = +byteOffset // Coerce to Number.\r\n if (numberIsNaN(byteOffset)) {\r\n // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\r\n byteOffset = dir ? 0 : (buffer.length - 1)\r\n }\r\n\r\n // Normalize byteOffset: negative offsets start from the end of the buffer\r\n if (byteOffset < 0) byteOffset = buffer.length + byteOffset\r\n if (byteOffset >= buffer.length) {\r\n if (dir) return -1\r\n else byteOffset = buffer.length - 1\r\n } else if (byteOffset < 0) {\r\n if (dir) byteOffset = 0\r\n else return -1\r\n }\r\n\r\n // Normalize val\r\n if (typeof val === 'string') {\r\n val = Buffer.from(val, encoding)\r\n }\r\n\r\n // Finally, search either indexOf (if dir is true) or lastIndexOf\r\n if (Buffer.isBuffer(val)) {\r\n // Special case: looking for empty string/buffer always fails\r\n if (val.length === 0) {\r\n return -1\r\n }\r\n return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\r\n } else if (typeof val === 'number') {\r\n val = val & 0xFF // Search for a byte value [0-255]\r\n if (typeof Uint8Array.prototype.indexOf === 'function') {\r\n if (dir) {\r\n return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\r\n } else {\r\n return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\r\n }\r\n }\r\n return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)\r\n }\r\n\r\n throw new TypeError('val must be string, number or Buffer')\r\n}\r\n\r\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\r\n var indexSize = 1\r\n var arrLength = arr.length\r\n var valLength = val.length\r\n\r\n if (encoding !== undefined) {\r\n encoding = String(encoding).toLowerCase()\r\n if (encoding === 'ucs2' || encoding === 'ucs-2' ||\r\n encoding === 'utf16le' || encoding === 'utf-16le') {\r\n if (arr.length < 2 || val.length < 2) {\r\n return -1\r\n }\r\n indexSize = 2\r\n arrLength /= 2\r\n valLength /= 2\r\n byteOffset /= 2\r\n }\r\n }\r\n\r\n function read (buf, i) {\r\n if (indexSize === 1) {\r\n return buf[i]\r\n } else {\r\n return buf.readUInt16BE(i * indexSize)\r\n }\r\n }\r\n\r\n var i\r\n if (dir) {\r\n var foundIndex = -1\r\n for (i = byteOffset; i < arrLength; i++) {\r\n if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\r\n if (foundIndex === -1) foundIndex = i\r\n if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\r\n } else {\r\n if (foundIndex !== -1) i -= i - foundIndex\r\n foundIndex = -1\r\n }\r\n }\r\n } else {\r\n if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\r\n for (i = byteOffset; i >= 0; i--) {\r\n var found = true\r\n for (var j = 0; j < valLength; j++) {\r\n if (read(arr, i + j) !== read(val, j)) {\r\n found = false\r\n break\r\n }\r\n }\r\n if (found) return i\r\n }\r\n }\r\n\r\n return -1\r\n}\r\n\r\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\r\n return this.indexOf(val, byteOffset, encoding) !== -1\r\n}\r\n\r\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\r\n return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\r\n}\r\n\r\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\r\n return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\r\n}\r\n\r\nfunction hexWrite (buf, string, offset, length) {\r\n offset = Number(offset) || 0\r\n var remaining = buf.length - offset\r\n if (!length) {\r\n length = remaining\r\n } else {\r\n length = Number(length)\r\n if (length > remaining) {\r\n length = remaining\r\n }\r\n }\r\n\r\n var strLen = string.length\r\n\r\n if (length > strLen / 2) {\r\n length = strLen / 2\r\n }\r\n for (var i = 0; i < length; ++i) {\r\n var parsed = parseInt(string.substr(i * 2, 2), 16)\r\n if (numberIsNaN(parsed)) return i\r\n buf[offset + i] = parsed\r\n }\r\n return i\r\n}\r\n\r\nfunction utf8Write (buf, string, offset, length) {\r\n return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\r\n}\r\n\r\nfunction asciiWrite (buf, string, offset, length) {\r\n return blitBuffer(asciiToBytes(string), buf, offset, length)\r\n}\r\n\r\nfunction base64Write (buf, string, offset, length) {\r\n return blitBuffer(base64ToBytes(string), buf, offset, length)\r\n}\r\n\r\nfunction ucs2Write (buf, string, offset, length) {\r\n return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\r\n}\r\n\r\nBuffer.prototype.write = function write (string, offset, length, encoding) {\r\n // Buffer#write(string)\r\n if (offset === undefined) {\r\n encoding = 'utf8'\r\n length = this.length\r\n offset = 0\r\n // Buffer#write(string, encoding)\r\n } else if (length === undefined && typeof offset === 'string') {\r\n encoding = offset\r\n length = this.length\r\n offset = 0\r\n // Buffer#write(string, offset[, length][, encoding])\r\n } else if (isFinite(offset)) {\r\n offset = offset >>> 0\r\n if (isFinite(length)) {\r\n length = length >>> 0\r\n if (encoding === undefined) encoding = 'utf8'\r\n } else {\r\n encoding = length\r\n length = undefined\r\n }\r\n } else {\r\n throw new Error(\r\n 'Buffer.write(string, encoding, offset[, length]) is no longer supported'\r\n )\r\n }\r\n\r\n var remaining = this.length - offset\r\n if (length === undefined || length > remaining) length = remaining\r\n\r\n if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\r\n throw new RangeError('Attempt to write outside buffer bounds')\r\n }\r\n\r\n if (!encoding) encoding = 'utf8'\r\n\r\n var loweredCase = false\r\n for (;;) {\r\n switch (encoding) {\r\n case 'hex':\r\n return hexWrite(this, string, offset, length)\r\n\r\n case 'utf8':\r\n case 'utf-8':\r\n return utf8Write(this, string, offset, length)\r\n\r\n case 'ascii':\r\n case 'latin1':\r\n case 'binary':\r\n return asciiWrite(this, string, offset, length)\r\n\r\n case 'base64':\r\n // Warning: maxLength not taken into account in base64Write\r\n return base64Write(this, string, offset, length)\r\n\r\n case 'ucs2':\r\n case 'ucs-2':\r\n case 'utf16le':\r\n case 'utf-16le':\r\n return ucs2Write(this, string, offset, length)\r\n\r\n default:\r\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\r\n encoding = ('' + encoding).toLowerCase()\r\n loweredCase = true\r\n }\r\n }\r\n}\r\n\r\nBuffer.prototype.toJSON = function toJSON () {\r\n return {\r\n type: 'Buffer',\r\n data: Array.prototype.slice.call(this._arr || this, 0)\r\n }\r\n}\r\n\r\nfunction base64Slice (buf, start, end) {\r\n if (start === 0 && end === buf.length) {\r\n return base64.fromByteArray(buf)\r\n } else {\r\n return base64.fromByteArray(buf.slice(start, end))\r\n }\r\n}\r\n\r\nfunction utf8Slice (buf, start, end) {\r\n end = Math.min(buf.length, end)\r\n var res = []\r\n\r\n var i = start\r\n while (i < end) {\r\n var firstByte = buf[i]\r\n var codePoint = null\r\n var bytesPerSequence = (firstByte > 0xEF)\r\n ? 4\r\n : (firstByte > 0xDF)\r\n ? 3\r\n : (firstByte > 0xBF)\r\n ? 2\r\n : 1\r\n\r\n if (i + bytesPerSequence <= end) {\r\n var secondByte, thirdByte, fourthByte, tempCodePoint\r\n\r\n switch (bytesPerSequence) {\r\n case 1:\r\n if (firstByte < 0x80) {\r\n codePoint = firstByte\r\n }\r\n break\r\n case 2:\r\n secondByte = buf[i + 1]\r\n if ((secondByte & 0xC0) === 0x80) {\r\n tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\r\n if (tempCodePoint > 0x7F) {\r\n codePoint = tempCodePoint\r\n }\r\n }\r\n break\r\n case 3:\r\n secondByte = buf[i + 1]\r\n thirdByte = buf[i + 2]\r\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\r\n tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\r\n if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\r\n codePoint = tempCodePoint\r\n }\r\n }\r\n break\r\n case 4:\r\n secondByte = buf[i + 1]\r\n thirdByte = buf[i + 2]\r\n fourthByte = buf[i + 3]\r\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\r\n tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\r\n if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\r\n codePoint = tempCodePoint\r\n }\r\n }\r\n }\r\n }\r\n\r\n if (codePoint === null) {\r\n // we did not generate a valid codePoint so insert a\r\n // replacement char (U+FFFD) and advance only 1 byte\r\n codePoint = 0xFFFD\r\n bytesPerSequence = 1\r\n } else if (codePoint > 0xFFFF) {\r\n // encode to utf16 (surrogate pair dance)\r\n codePoint -= 0x10000\r\n res.push(codePoint >>> 10 & 0x3FF | 0xD800)\r\n codePoint = 0xDC00 | codePoint & 0x3FF\r\n }\r\n\r\n res.push(codePoint)\r\n i += bytesPerSequence\r\n }\r\n\r\n return decodeCodePointsArray(res)\r\n}\r\n\r\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\r\n// the lowest limit is Chrome, with 0x10000 args.\r\n// We go 1 magnitude less, for safety\r\nvar MAX_ARGUMENTS_LENGTH = 0x1000\r\n\r\nfunction decodeCodePointsArray (codePoints) {\r\n var len = codePoints.length\r\n if (len <= MAX_ARGUMENTS_LENGTH) {\r\n return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\r\n }\r\n\r\n // Decode in chunks to avoid \"call stack size exceeded\".\r\n var res = ''\r\n var i = 0\r\n while (i < len) {\r\n res += String.fromCharCode.apply(\r\n String,\r\n codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\r\n )\r\n }\r\n return res\r\n}\r\n\r\nfunction asciiSlice (buf, start, end) {\r\n var ret = ''\r\n end = Math.min(buf.length, end)\r\n\r\n for (var i = start; i < end; ++i) {\r\n ret += String.fromCharCode(buf[i] & 0x7F)\r\n }\r\n return ret\r\n}\r\n\r\nfunction latin1Slice (buf, start, end) {\r\n var ret = ''\r\n end = Math.min(buf.length, end)\r\n\r\n for (var i = start; i < end; ++i) {\r\n ret += String.fromCharCode(buf[i])\r\n }\r\n return ret\r\n}\r\n\r\nfunction hexSlice (buf, start, end) {\r\n var len = buf.length\r\n\r\n if (!start || start < 0) start = 0\r\n if (!end || end < 0 || end > len) end = len\r\n\r\n var out = ''\r\n for (var i = start; i < end; ++i) {\r\n out += hexSliceLookupTable[buf[i]]\r\n }\r\n return out\r\n}\r\n\r\nfunction utf16leSlice (buf, start, end) {\r\n var bytes = buf.slice(start, end)\r\n var res = ''\r\n // If bytes.length is odd, the last 8 bits must be ignored (same as node.js)\r\n for (var i = 0; i < bytes.length - 1; i += 2) {\r\n res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))\r\n }\r\n return res\r\n}\r\n\r\nBuffer.prototype.slice = function slice (start, end) {\r\n var len = this.length\r\n start = ~~start\r\n end = end === undefined ? len : ~~end\r\n\r\n if (start < 0) {\r\n start += len\r\n if (start < 0) start = 0\r\n } else if (start > len) {\r\n start = len\r\n }\r\n\r\n if (end < 0) {\r\n end += len\r\n if (end < 0) end = 0\r\n } else if (end > len) {\r\n end = len\r\n }\r\n\r\n if (end < start) end = start\r\n\r\n var newBuf = this.subarray(start, end)\r\n // Return an augmented `Uint8Array` instance\r\n Object.setPrototypeOf(newBuf, Buffer.prototype)\r\n\r\n return newBuf\r\n}\r\n\r\n/*\r\n * Need to make sure that buffer isn't trying to write out of bounds.\r\n */\r\nfunction checkOffset (offset, ext, length) {\r\n if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\r\n if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\r\n}\r\n\r\nBuffer.prototype.readUintLE =\r\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) checkOffset(offset, byteLength, this.length)\r\n\r\n var val = this[offset]\r\n var mul = 1\r\n var i = 0\r\n while (++i < byteLength && (mul *= 0x100)) {\r\n val += this[offset + i] * mul\r\n }\r\n\r\n return val\r\n}\r\n\r\nBuffer.prototype.readUintBE =\r\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) {\r\n checkOffset(offset, byteLength, this.length)\r\n }\r\n\r\n var val = this[offset + --byteLength]\r\n var mul = 1\r\n while (byteLength > 0 && (mul *= 0x100)) {\r\n val += this[offset + --byteLength] * mul\r\n }\r\n\r\n return val\r\n}\r\n\r\nBuffer.prototype.readUint8 =\r\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 1, this.length)\r\n return this[offset]\r\n}\r\n\r\nBuffer.prototype.readUint16LE =\r\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 2, this.length)\r\n return this[offset] | (this[offset + 1] << 8)\r\n}\r\n\r\nBuffer.prototype.readUint16BE =\r\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 2, this.length)\r\n return (this[offset] << 8) | this[offset + 1]\r\n}\r\n\r\nBuffer.prototype.readUint32LE =\r\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n\r\n return ((this[offset]) |\r\n (this[offset + 1] << 8) |\r\n (this[offset + 2] << 16)) +\r\n (this[offset + 3] * 0x1000000)\r\n}\r\n\r\nBuffer.prototype.readUint32BE =\r\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n\r\n return (this[offset] * 0x1000000) +\r\n ((this[offset + 1] << 16) |\r\n (this[offset + 2] << 8) |\r\n this[offset + 3])\r\n}\r\n\r\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) checkOffset(offset, byteLength, this.length)\r\n\r\n var val = this[offset]\r\n var mul = 1\r\n var i = 0\r\n while (++i < byteLength && (mul *= 0x100)) {\r\n val += this[offset + i] * mul\r\n }\r\n mul *= 0x80\r\n\r\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\r\n\r\n return val\r\n}\r\n\r\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) checkOffset(offset, byteLength, this.length)\r\n\r\n var i = byteLength\r\n var mul = 1\r\n var val = this[offset + --i]\r\n while (i > 0 && (mul *= 0x100)) {\r\n val += this[offset + --i] * mul\r\n }\r\n mul *= 0x80\r\n\r\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\r\n\r\n return val\r\n}\r\n\r\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 1, this.length)\r\n if (!(this[offset] & 0x80)) return (this[offset])\r\n return ((0xff - this[offset] + 1) * -1)\r\n}\r\n\r\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 2, this.length)\r\n var val = this[offset] | (this[offset + 1] << 8)\r\n return (val & 0x8000) ? val | 0xFFFF0000 : val\r\n}\r\n\r\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 2, this.length)\r\n var val = this[offset + 1] | (this[offset] << 8)\r\n return (val & 0x8000) ? val | 0xFFFF0000 : val\r\n}\r\n\r\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n\r\n return (this[offset]) |\r\n (this[offset + 1] << 8) |\r\n (this[offset + 2] << 16) |\r\n (this[offset + 3] << 24)\r\n}\r\n\r\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n\r\n return (this[offset] << 24) |\r\n (this[offset + 1] << 16) |\r\n (this[offset + 2] << 8) |\r\n (this[offset + 3])\r\n}\r\n\r\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n return ieee754.read(this, offset, true, 23, 4)\r\n}\r\n\r\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 4, this.length)\r\n return ieee754.read(this, offset, false, 23, 4)\r\n}\r\n\r\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 8, this.length)\r\n return ieee754.read(this, offset, true, 52, 8)\r\n}\r\n\r\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\r\n offset = offset >>> 0\r\n if (!noAssert) checkOffset(offset, 8, this.length)\r\n return ieee754.read(this, offset, false, 52, 8)\r\n}\r\n\r\nfunction checkInt (buf, value, offset, ext, max, min) {\r\n if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\r\n if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\r\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\r\n}\r\n\r\nBuffer.prototype.writeUintLE =\r\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) {\r\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\r\n checkInt(this, value, offset, byteLength, maxBytes, 0)\r\n }\r\n\r\n var mul = 1\r\n var i = 0\r\n this[offset] = value & 0xFF\r\n while (++i < byteLength && (mul *= 0x100)) {\r\n this[offset + i] = (value / mul) & 0xFF\r\n }\r\n\r\n return offset + byteLength\r\n}\r\n\r\nBuffer.prototype.writeUintBE =\r\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n byteLength = byteLength >>> 0\r\n if (!noAssert) {\r\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\r\n checkInt(this, value, offset, byteLength, maxBytes, 0)\r\n }\r\n\r\n var i = byteLength - 1\r\n var mul = 1\r\n this[offset + i] = value & 0xFF\r\n while (--i >= 0 && (mul *= 0x100)) {\r\n this[offset + i] = (value / mul) & 0xFF\r\n }\r\n\r\n return offset + byteLength\r\n}\r\n\r\nBuffer.prototype.writeUint8 =\r\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\r\n this[offset] = (value & 0xff)\r\n return offset + 1\r\n}\r\n\r\nBuffer.prototype.writeUint16LE =\r\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\r\n this[offset] = (value & 0xff)\r\n this[offset + 1] = (value >>> 8)\r\n return offset + 2\r\n}\r\n\r\nBuffer.prototype.writeUint16BE =\r\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\r\n this[offset] = (value >>> 8)\r\n this[offset + 1] = (value & 0xff)\r\n return offset + 2\r\n}\r\n\r\nBuffer.prototype.writeUint32LE =\r\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\r\n this[offset + 3] = (value >>> 24)\r\n this[offset + 2] = (value >>> 16)\r\n this[offset + 1] = (value >>> 8)\r\n this[offset] = (value & 0xff)\r\n return offset + 4\r\n}\r\n\r\nBuffer.prototype.writeUint32BE =\r\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\r\n this[offset] = (value >>> 24)\r\n this[offset + 1] = (value >>> 16)\r\n this[offset + 2] = (value >>> 8)\r\n this[offset + 3] = (value & 0xff)\r\n return offset + 4\r\n}\r\n\r\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) {\r\n var limit = Math.pow(2, (8 * byteLength) - 1)\r\n\r\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\r\n }\r\n\r\n var i = 0\r\n var mul = 1\r\n var sub = 0\r\n this[offset] = value & 0xFF\r\n while (++i < byteLength && (mul *= 0x100)) {\r\n if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\r\n sub = 1\r\n }\r\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\r\n }\r\n\r\n return offset + byteLength\r\n}\r\n\r\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) {\r\n var limit = Math.pow(2, (8 * byteLength) - 1)\r\n\r\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\r\n }\r\n\r\n var i = byteLength - 1\r\n var mul = 1\r\n var sub = 0\r\n this[offset + i] = value & 0xFF\r\n while (--i >= 0 && (mul *= 0x100)) {\r\n if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\r\n sub = 1\r\n }\r\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\r\n }\r\n\r\n return offset + byteLength\r\n}\r\n\r\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\r\n if (value < 0) value = 0xff + value + 1\r\n this[offset] = (value & 0xff)\r\n return offset + 1\r\n}\r\n\r\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\r\n this[offset] = (value & 0xff)\r\n this[offset + 1] = (value >>> 8)\r\n return offset + 2\r\n}\r\n\r\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\r\n this[offset] = (value >>> 8)\r\n this[offset + 1] = (value & 0xff)\r\n return offset + 2\r\n}\r\n\r\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\r\n this[offset] = (value & 0xff)\r\n this[offset + 1] = (value >>> 8)\r\n this[offset + 2] = (value >>> 16)\r\n this[offset + 3] = (value >>> 24)\r\n return offset + 4\r\n}\r\n\r\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\r\n if (value < 0) value = 0xffffffff + value + 1\r\n this[offset] = (value >>> 24)\r\n this[offset + 1] = (value >>> 16)\r\n this[offset + 2] = (value >>> 8)\r\n this[offset + 3] = (value & 0xff)\r\n return offset + 4\r\n}\r\n\r\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\r\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\r\n if (offset < 0) throw new RangeError('Index out of range')\r\n}\r\n\r\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) {\r\n checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\r\n }\r\n ieee754.write(buf, value, offset, littleEndian, 23, 4)\r\n return offset + 4\r\n}\r\n\r\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\r\n return writeFloat(this, value, offset, true, noAssert)\r\n}\r\n\r\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\r\n return writeFloat(this, value, offset, false, noAssert)\r\n}\r\n\r\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\r\n value = +value\r\n offset = offset >>> 0\r\n if (!noAssert) {\r\n checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\r\n }\r\n ieee754.write(buf, value, offset, littleEndian, 52, 8)\r\n return offset + 8\r\n}\r\n\r\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\r\n return writeDouble(this, value, offset, true, noAssert)\r\n}\r\n\r\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\r\n return writeDouble(this, value, offset, false, noAssert)\r\n}\r\n\r\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\r\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\r\n if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')\r\n if (!start) start = 0\r\n if (!end && end !== 0) end = this.length\r\n if (targetStart >= target.length) targetStart = target.length\r\n if (!targetStart) targetStart = 0\r\n if (end > 0 && end < start) end = start\r\n\r\n // Copy 0 bytes; we're done\r\n if (end === start) return 0\r\n if (target.length === 0 || this.length === 0) return 0\r\n\r\n // Fatal error conditions\r\n if (targetStart < 0) {\r\n throw new RangeError('targetStart out of bounds')\r\n }\r\n if (start < 0 || start >= this.length) throw new RangeError('Index out of range')\r\n if (end < 0) throw new RangeError('sourceEnd out of bounds')\r\n\r\n // Are we oob?\r\n if (end > this.length) end = this.length\r\n if (target.length - targetStart < end - start) {\r\n end = target.length - targetStart + start\r\n }\r\n\r\n var len = end - start\r\n\r\n if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {\r\n // Use built-in when available, missing from IE11\r\n this.copyWithin(targetStart, start, end)\r\n } else {\r\n Uint8Array.prototype.set.call(\r\n target,\r\n this.subarray(start, end),\r\n targetStart\r\n )\r\n }\r\n\r\n return len\r\n}\r\n\r\n// Usage:\r\n// buffer.fill(number[, offset[, end]])\r\n// buffer.fill(buffer[, offset[, end]])\r\n// buffer.fill(string[, offset[, end]][, encoding])\r\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\r\n // Handle string cases:\r\n if (typeof val === 'string') {\r\n if (typeof start === 'string') {\r\n encoding = start\r\n start = 0\r\n end = this.length\r\n } else if (typeof end === 'string') {\r\n encoding = end\r\n end = this.length\r\n }\r\n if (encoding !== undefined && typeof encoding !== 'string') {\r\n throw new TypeError('encoding must be a string')\r\n }\r\n if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\r\n throw new TypeError('Unknown encoding: ' + encoding)\r\n }\r\n if (val.length === 1) {\r\n var code = val.charCodeAt(0)\r\n if ((encoding === 'utf8' && code < 128) ||\r\n encoding === 'latin1') {\r\n // Fast path: If `val` fits into a single byte, use that numeric value.\r\n val = code\r\n }\r\n }\r\n } else if (typeof val === 'number') {\r\n val = val & 255\r\n } else if (typeof val === 'boolean') {\r\n val = Number(val)\r\n }\r\n\r\n // Invalid ranges are not set to a default, so can range check early.\r\n if (start < 0 || this.length < start || this.length < end) {\r\n throw new RangeError('Out of range index')\r\n }\r\n\r\n if (end <= start) {\r\n return this\r\n }\r\n\r\n start = start >>> 0\r\n end = end === undefined ? this.length : end >>> 0\r\n\r\n if (!val) val = 0\r\n\r\n var i\r\n if (typeof val === 'number') {\r\n for (i = start; i < end; ++i) {\r\n this[i] = val\r\n }\r\n } else {\r\n var bytes = Buffer.isBuffer(val)\r\n ? val\r\n : Buffer.from(val, encoding)\r\n var len = bytes.length\r\n if (len === 0) {\r\n throw new TypeError('The value \"' + val +\r\n '\" is invalid for argument \"value\"')\r\n }\r\n for (i = 0; i < end - start; ++i) {\r\n this[i + start] = bytes[i % len]\r\n }\r\n }\r\n\r\n return this\r\n}\r\n\r\n// HELPER FUNCTIONS\r\n// ================\r\n\r\nvar INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g\r\n\r\nfunction base64clean (str) {\r\n // Node takes equal signs as end of the Base64 encoding\r\n str = str.split('=')[0]\r\n // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\r\n str = str.trim().replace(INVALID_BASE64_RE, '')\r\n // Node converts strings with length < 2 to ''\r\n if (str.length < 2) return ''\r\n // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\r\n while (str.length % 4 !== 0) {\r\n str = str + '='\r\n }\r\n return str\r\n}\r\n\r\nfunction utf8ToBytes (string, units) {\r\n units = units || Infinity\r\n var codePoint\r\n var length = string.length\r\n var leadSurrogate = null\r\n var bytes = []\r\n\r\n for (var i = 0; i < length; ++i) {\r\n codePoint = string.charCodeAt(i)\r\n\r\n // is surrogate component\r\n if (codePoint > 0xD7FF && codePoint < 0xE000) {\r\n // last char was a lead\r\n if (!leadSurrogate) {\r\n // no lead yet\r\n if (codePoint > 0xDBFF) {\r\n // unexpected trail\r\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\r\n continue\r\n } else if (i + 1 === length) {\r\n // unpaired lead\r\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\r\n continue\r\n }\r\n\r\n // valid lead\r\n leadSurrogate = codePoint\r\n\r\n continue\r\n }\r\n\r\n // 2 leads in a row\r\n if (codePoint < 0xDC00) {\r\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\r\n leadSurrogate = codePoint\r\n continue\r\n }\r\n\r\n // valid surrogate pair\r\n codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\r\n } else if (leadSurrogate) {\r\n // valid bmp char, but last char was a lead\r\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\r\n }\r\n\r\n leadSurrogate = null\r\n\r\n // encode utf8\r\n if (codePoint < 0x80) {\r\n if ((units -= 1) < 0) break\r\n bytes.push(codePoint)\r\n } else if (codePoint < 0x800) {\r\n if ((units -= 2) < 0) break\r\n bytes.push(\r\n codePoint >> 0x6 | 0xC0,\r\n codePoint & 0x3F | 0x80\r\n )\r\n } else if (codePoint < 0x10000) {\r\n if ((units -= 3) < 0) break\r\n bytes.push(\r\n codePoint >> 0xC | 0xE0,\r\n codePoint >> 0x6 & 0x3F | 0x80,\r\n codePoint & 0x3F | 0x80\r\n )\r\n } else if (codePoint < 0x110000) {\r\n if ((units -= 4) < 0) break\r\n bytes.push(\r\n codePoint >> 0x12 | 0xF0,\r\n codePoint >> 0xC & 0x3F | 0x80,\r\n codePoint >> 0x6 & 0x3F | 0x80,\r\n codePoint & 0x3F | 0x80\r\n )\r\n } else {\r\n throw new Error('Invalid code point')\r\n }\r\n }\r\n\r\n return bytes\r\n}\r\n\r\nfunction asciiToBytes (str) {\r\n var byteArray = []\r\n for (var i = 0; i < str.length; ++i) {\r\n // Node's code seems to be doing this and not & 0x7F..\r\n byteArray.push(str.charCodeAt(i) & 0xFF)\r\n }\r\n return byteArray\r\n}\r\n\r\nfunction utf16leToBytes (str, units) {\r\n var c, hi, lo\r\n var byteArray = []\r\n for (var i = 0; i < str.length; ++i) {\r\n if ((units -= 2) < 0) break\r\n\r\n c = str.charCodeAt(i)\r\n hi = c >> 8\r\n lo = c % 256\r\n byteArray.push(lo)\r\n byteArray.push(hi)\r\n }\r\n\r\n return byteArray\r\n}\r\n\r\nfunction base64ToBytes (str) {\r\n return base64.toByteArray(base64clean(str))\r\n}\r\n\r\nfunction blitBuffer (src, dst, offset, length) {\r\n for (var i = 0; i < length; ++i) {\r\n if ((i + offset >= dst.length) || (i >= src.length)) break\r\n dst[i + offset] = src[i]\r\n }\r\n return i\r\n}\r\n\r\n// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass\r\n// the `instanceof` check but they should be treated as of that type.\r\n// See: https://github.com/feross/buffer/issues/166\r\nfunction isInstance (obj, type) {\r\n return obj instanceof type ||\r\n (obj != null && obj.constructor != null && obj.constructor.name != null &&\r\n obj.constructor.name === type.name)\r\n}\r\nfunction numberIsNaN (obj) {\r\n // For IE11 support\r\n return obj !== obj // eslint-disable-line no-self-compare\r\n}\r\n\r\n// Create lookup table for `toString('hex')`\r\n// See: https://github.com/feross/buffer/issues/219\r\nvar hexSliceLookupTable = (function () {\r\n var alphabet = '0123456789abcdef'\r\n var table = new Array(256)\r\n for (var i = 0; i < 16; ++i) {\r\n var i16 = i * 16\r\n for (var j = 0; j < 16; ++j) {\r\n table[i16 + j] = alphabet[i] + alphabet[j]\r\n }\r\n }\r\n return table\r\n})()\r\n"],"sourceRoot":"webpack:///"}