RiffMaster_WPFaT2023_Project/Frontend/RiffMasterFront/node_modules/zone.js/dist/zone-node.js

'use strict';
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
/**
 * @license Angular v<unknown>
 * (c) 2010-2022 Google LLC. https://angular.io/
 * License: MIT
 */
(function (factory) {
    typeof define === 'function' && define.amd ? define(factory) :
        factory();
})((function () {
    'use strict';
    ((function (global) {
        var performance = global['performance'];
        function mark(name) {
            performance && performance['mark'] && performance['mark'](name);
        }
        function performanceMeasure(name, label) {
            performance && performance['measure'] && performance['measure'](name, label);
        }
        mark('Zone');
        // Initialize before it's accessed below.
        // __Zone_symbol_prefix global can be used to override the default zone
        // symbol prefix with a custom one if needed.
        var symbolPrefix = global['__Zone_symbol_prefix'] || '__zone_symbol__';
        function __symbol__(name) {
            return symbolPrefix + name;
        }
        var checkDuplicate = global[__symbol__('forceDuplicateZoneCheck')] === true;
        if (global['Zone']) {
            // if global['Zone'] already exists (maybe zone.js was already loaded or
            // some other lib also registered a global object named Zone), we may need
            // to throw an error, but sometimes user may not want this error.
            // For example,
            // we have two web pages, page1 includes zone.js, page2 doesn't.
            // and the 1st time user load page1 and page2, everything work fine,
            // but when user load page2 again, error occurs because global['Zone'] already exists.
            // so we add a flag to let user choose whether to throw this error or not.
            // By default, if existing Zone is from zone.js, we will not throw the error.
            if (checkDuplicate || typeof global['Zone'].__symbol__ !== 'function') {
                throw new Error('Zone already loaded.');
            }
            else {
                return global['Zone'];
            }
        }
        var Zone = /** @class */ (function () {
            function Zone(parent, zoneSpec) {
                this._parent = parent;
                this._name = zoneSpec ? zoneSpec.name || 'unnamed' : '<root>';
                this._properties = zoneSpec && zoneSpec.properties || {};
                this._zoneDelegate =
                    new _ZoneDelegate(this, this._parent && this._parent._zoneDelegate, zoneSpec);
            }
            Zone.assertZonePatched = function () {
                if (global['Promise'] !== patches['ZoneAwarePromise']) {
                    throw new Error('Zone.js has detected that ZoneAwarePromise `(window|global).Promise` ' +
                        'has been overwritten.\n' +
                        'Most likely cause is that a Promise polyfill has been loaded ' +
                        'after Zone.js (Polyfilling Promise api is not necessary when zone.js is loaded. ' +
                        'If you must load one, do so before loading zone.js.)');
                }
            };
            Object.defineProperty(Zone, "root", {
                get: function () {
                    var zone = Zone.current;
                    while (zone.parent) {
                        zone = zone.parent;
                    }
                    return zone;
                },
                enumerable: false,
                configurable: true
            });
            Object.defineProperty(Zone, "current", {
                get: function () {
                    return _currentZoneFrame.zone;
                },
                enumerable: false,
                configurable: true
            });
            Object.defineProperty(Zone, "currentTask", {
                get: function () {
                    return _currentTask;
                },
                enumerable: false,
                configurable: true
            });
            // tslint:disable-next-line:require-internal-with-underscore
            Zone.__load_patch = function (name, fn, ignoreDuplicate) {
                if (ignoreDuplicate === void 0) { ignoreDuplicate = false; }
                if (patches.hasOwnProperty(name)) {
                    // `checkDuplicate` option is defined from global variable
                    // so it works for all modules.
                    // `ignoreDuplicate` can work for the specified module
                    if (!ignoreDuplicate && checkDuplicate) {
                        throw Error('Already loaded patch: ' + name);
                    }
                }
                else if (!global['__Zone_disable_' + name]) {
                    var perfName = 'Zone:' + name;
                    mark(perfName);
                    patches[name] = fn(global, Zone, _api);
                    performanceMeasure(perfName, perfName);
                }
            };
            Object.defineProperty(Zone.prototype, "parent", {
                get: function () {
                    return this._parent;
                },
                enumerable: false,
                configurable: true
            });
            Object.defineProperty(Zone.prototype, "name", {
                get: function () {
                    return this._name;
                },
                enumerable: false,
                configurable: true
            });
            Zone.prototype.get = function (key) {
                var zone = this.getZoneWith(key);
                if (zone)
                    return zone._properties[key];
            };
            Zone.prototype.getZoneWith = function (key) {
                var current = this;
                while (current) {
                    if (current._properties.hasOwnProperty(key)) {
                        return current;
                    }
                    current = current._parent;
                }
                return null;
            };
            Zone.prototype.fork = function (zoneSpec) {
                if (!zoneSpec)
                    throw new Error('ZoneSpec required!');
                return this._zoneDelegate.fork(this, zoneSpec);
            };
            Zone.prototype.wrap = function (callback, source) {
                if (typeof callback !== 'function') {
                    throw new Error('Expecting function got: ' + callback);
                }
                var _callback = this._zoneDelegate.intercept(this, callback, source);
                var zone = this;
                return function () {
                    return zone.runGuarded(_callback, this, arguments, source);
                };
            };
            Zone.prototype.run = function (callback, applyThis, applyArgs, source) {
                _currentZoneFrame = { parent: _currentZoneFrame, zone: this };
                try {
                    return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
                }
                finally {
                    _currentZoneFrame = _currentZoneFrame.parent;
                }
            };
            Zone.prototype.runGuarded = function (callback, applyThis, applyArgs, source) {
                if (applyThis === void 0) { applyThis = null; }
                _currentZoneFrame = { parent: _currentZoneFrame, zone: this };
                try {
                    try {
                        return this._zoneDelegate.invoke(this, callback, applyThis, applyArgs, source);
                    }
                    catch (error) {
                        if (this._zoneDelegate.handleError(this, error)) {
                            throw error;
                        }
                    }
                }
                finally {
                    _currentZoneFrame = _currentZoneFrame.parent;
                }
            };
            Zone.prototype.runTask = function (task, applyThis, applyArgs) {
                if (task.zone != this) {
                    throw new Error('A task can only be run in the zone of creation! (Creation: ' +
                        (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');
                }
                // https://github.com/angular/zone.js/issues/778, sometimes eventTask
                // will run in notScheduled(canceled) state, we should not try to
                // run such kind of task but just return
                if (task.state === notScheduled && (task.type === eventTask || task.type === macroTask)) {
                    return;
                }
                var reEntryGuard = task.state != running;
                reEntryGuard && task._transitionTo(running, scheduled);
                task.runCount++;
                var previousTask = _currentTask;
                _currentTask = task;
                _currentZoneFrame = { parent: _currentZoneFrame, zone: this };
                try {
                    if (task.type == macroTask && task.data && !task.data.isPeriodic) {
                        task.cancelFn = undefined;
                    }
                    try {
                        return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);
                    }
                    catch (error) {
                        if (this._zoneDelegate.handleError(this, error)) {
                            throw error;
                        }
                    }
                }
                finally {
                    // if the task's state is notScheduled or unknown, then it has already been cancelled
                    // we should not reset the state to scheduled
                    if (task.state !== notScheduled && task.state !== unknown) {
                        if (task.type == eventTask || (task.data && task.data.isPeriodic)) {
                            reEntryGuard && task._transitionTo(scheduled, running);
                        }
                        else {
                            task.runCount = 0;
                            this._updateTaskCount(task, -1);
                            reEntryGuard &&
                                task._transitionTo(notScheduled, running, notScheduled);
                        }
                    }
                    _currentZoneFrame = _currentZoneFrame.parent;
                    _currentTask = previousTask;
                }
            };
            Zone.prototype.scheduleTask = function (task) {
                if (task.zone && task.zone !== this) {
                    // check if the task was rescheduled, the newZone
                    // should not be the children of the original zone
                    var newZone = this;
                    while (newZone) {
                        if (newZone === task.zone) {
                            throw Error("can not reschedule task to ".concat(this.name, " which is descendants of the original zone ").concat(task.zone.name));
                        }
                        newZone = newZone.parent;
                    }
                }
                task._transitionTo(scheduling, notScheduled);
                var zoneDelegates = [];
                task._zoneDelegates = zoneDelegates;
                task._zone = this;
                try {
                    task = this._zoneDelegate.scheduleTask(this, task);
                }
                catch (err) {
                    // should set task's state to unknown when scheduleTask throw error
                    // because the err may from reschedule, so the fromState maybe notScheduled
                    task._transitionTo(unknown, scheduling, notScheduled);
                    // TODO: @JiaLiPassion, should we check the result from handleError?
                    this._zoneDelegate.handleError(this, err);
                    throw err;
                }
                if (task._zoneDelegates === zoneDelegates) {
                    // we have to check because internally the delegate can reschedule the task.
                    this._updateTaskCount(task, 1);
                }
                if (task.state == scheduling) {
                    task._transitionTo(scheduled, scheduling);
                }
                return task;
            };
            Zone.prototype.scheduleMicroTask = function (source, callback, data, customSchedule) {
                return this.scheduleTask(new ZoneTask(microTask, source, callback, data, customSchedule, undefined));
            };
            Zone.prototype.scheduleMacroTask = function (source, callback, data, customSchedule, customCancel) {
                return this.scheduleTask(new ZoneTask(macroTask, source, callback, data, customSchedule, customCancel));
            };
            Zone.prototype.scheduleEventTask = function (source, callback, data, customSchedule, customCancel) {
                return this.scheduleTask(new ZoneTask(eventTask, source, callback, data, customSchedule, customCancel));
            };
            Zone.prototype.cancelTask = function (task) {
                if (task.zone != this)
                    throw new Error('A task can only be cancelled in the zone of creation! (Creation: ' +
                        (task.zone || NO_ZONE).name + '; Execution: ' + this.name + ')');
                if (task.state !== scheduled && task.state !== running) {
                    return;
                }
                task._transitionTo(canceling, scheduled, running);
                try {
                    this._zoneDelegate.cancelTask(this, task);
                }
                catch (err) {
                    // if error occurs when cancelTask, transit the state to unknown
                    task._transitionTo(unknown, canceling);
                    this._zoneDelegate.handleError(this, err);
                    throw err;
                }
                this._updateTaskCount(task, -1);
                task._transitionTo(notScheduled, canceling);
                task.runCount = 0;
                return task;
            };
            Zone.prototype._updateTaskCount = function (task, count) {
                var zoneDelegates = task._zoneDelegates;
                if (count == -1) {
                    task._zoneDelegates = null;
                }
                for (var i = 0; i < zoneDelegates.length; i++) {
                    zoneDelegates[i]._updateTaskCount(task.type, count);
                }
            };
            return Zone;
        }());
        // tslint:disable-next-line:require-internal-with-underscore
        Zone.__symbol__ = __symbol__;
        var DELEGATE_ZS = {
            name: '',
            onHasTask: function (delegate, _, target, hasTaskState) { return delegate.hasTask(target, hasTaskState); },
            onScheduleTask: function (delegate, _, target, task) { return delegate.scheduleTask(target, task); },
            onInvokeTask: function (delegate, _, target, task, applyThis, applyArgs) { return delegate.invokeTask(target, task, applyThis, applyArgs); },
            onCancelTask: function (delegate, _, target, task) { return delegate.cancelTask(target, task); }
        };
        var _ZoneDelegate = /** @class */ (function () {
            function _ZoneDelegate(zone, parentDelegate, zoneSpec) {
                this._taskCounts = { 'microTask': 0, 'macroTask': 0, 'eventTask': 0 };
                this.zone = zone;
                this._parentDelegate = parentDelegate;
                this._forkZS = zoneSpec && (zoneSpec && zoneSpec.onFork ? zoneSpec : parentDelegate._forkZS);
                this._forkDlgt = zoneSpec && (zoneSpec.onFork ? parentDelegate : parentDelegate._forkDlgt);
                this._forkCurrZone =
                    zoneSpec && (zoneSpec.onFork ? this.zone : parentDelegate._forkCurrZone);
                this._interceptZS =
                    zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);
                this._interceptDlgt =
                    zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);
                this._interceptCurrZone =
                    zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate._interceptCurrZone);
                this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);
                this._invokeDlgt =
                    zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);
                this._invokeCurrZone =
                    zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate._invokeCurrZone);
                this._handleErrorZS =
                    zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);
                this._handleErrorDlgt =
                    zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);
                this._handleErrorCurrZone =
                    zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate._handleErrorCurrZone);
                this._scheduleTaskZS =
                    zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);
                this._scheduleTaskDlgt = zoneSpec &&
                    (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);
                this._scheduleTaskCurrZone =
                    zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate._scheduleTaskCurrZone);
                this._invokeTaskZS =
                    zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);
                this._invokeTaskDlgt =
                    zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);
                this._invokeTaskCurrZone =
                    zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate._invokeTaskCurrZone);
                this._cancelTaskZS =
                    zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);
                this._cancelTaskDlgt =
                    zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);
                this._cancelTaskCurrZone =
                    zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate._cancelTaskCurrZone);
                this._hasTaskZS = null;
                this._hasTaskDlgt = null;
                this._hasTaskDlgtOwner = null;
                this._hasTaskCurrZone = null;
                var zoneSpecHasTask = zoneSpec && zoneSpec.onHasTask;
                var parentHasTask = parentDelegate && parentDelegate._hasTaskZS;
                if (zoneSpecHasTask || parentHasTask) {
                    // If we need to report hasTask, than this ZS needs to do ref counting on tasks. In such
                    // a case all task related interceptors must go through this ZD. We can't short circuit it.
                    this._hasTaskZS = zoneSpecHasTask ? zoneSpec : DELEGATE_ZS;
                    this._hasTaskDlgt = parentDelegate;
                    this._hasTaskDlgtOwner = this;
                    this._hasTaskCurrZone = zone;
                    if (!zoneSpec.onScheduleTask) {
                        this._scheduleTaskZS = DELEGATE_ZS;
                        this._scheduleTaskDlgt = parentDelegate;
                        this._scheduleTaskCurrZone = this.zone;
                    }
                    if (!zoneSpec.onInvokeTask) {
                        this._invokeTaskZS = DELEGATE_ZS;
                        this._invokeTaskDlgt = parentDelegate;
                        this._invokeTaskCurrZone = this.zone;
                    }
                    if (!zoneSpec.onCancelTask) {
                        this._cancelTaskZS = DELEGATE_ZS;
                        this._cancelTaskDlgt = parentDelegate;
                        this._cancelTaskCurrZone = this.zone;
                    }
                }
            }
            _ZoneDelegate.prototype.fork = function (targetZone, zoneSpec) {
                return this._forkZS ? this._forkZS.onFork(this._forkDlgt, this.zone, targetZone, zoneSpec) :
                    new Zone(targetZone, zoneSpec);
            };
            _ZoneDelegate.prototype.intercept = function (targetZone, callback, source) {
                return this._interceptZS ?
                    this._interceptZS.onIntercept(this._interceptDlgt, this._interceptCurrZone, targetZone, callback, source) :
                    callback;
            };
            _ZoneDelegate.prototype.invoke = function (targetZone, callback, applyThis, applyArgs, source) {
                return this._invokeZS ? this._invokeZS.onInvoke(this._invokeDlgt, this._invokeCurrZone, targetZone, callback, applyThis, applyArgs, source) :
                    callback.apply(applyThis, applyArgs);
            };
            _ZoneDelegate.prototype.handleError = function (targetZone, error) {
                return this._handleErrorZS ?
                    this._handleErrorZS.onHandleError(this._handleErrorDlgt, this._handleErrorCurrZone, targetZone, error) :
                    true;
            };
            _ZoneDelegate.prototype.scheduleTask = function (targetZone, task) {
                var returnTask = task;
                if (this._scheduleTaskZS) {
                    if (this._hasTaskZS) {
                        returnTask._zoneDelegates.push(this._hasTaskDlgtOwner);
                    }
                    // clang-format off
                    returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);
                    // clang-format on
                    if (!returnTask)
                        returnTask = task;
                }
                else {
                    if (task.scheduleFn) {
                        task.scheduleFn(task);
                    }
                    else if (task.type == microTask) {
                        scheduleMicroTask(task);
                    }
                    else {
                        throw new Error('Task is missing scheduleFn.');
                    }
                }
                return returnTask;
            };
            _ZoneDelegate.prototype.invokeTask = function (targetZone, task, applyThis, applyArgs) {
                return this._invokeTaskZS ? this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) :
                    task.callback.apply(applyThis, applyArgs);
            };
            _ZoneDelegate.prototype.cancelTask = function (targetZone, task) {
                var value;
                if (this._cancelTaskZS) {
                    value = this._cancelTaskZS.onCancelTask(this._cancelTaskDlgt, this._cancelTaskCurrZone, targetZone, task);
                }
                else {
                    if (!task.cancelFn) {
                        throw Error('Task is not cancelable');
                    }
                    value = task.cancelFn(task);
                }
                return value;
            };
            _ZoneDelegate.prototype.hasTask = function (targetZone, isEmpty) {
                // hasTask should not throw error so other ZoneDelegate
                // can still trigger hasTask callback
                try {
                    this._hasTaskZS &&
                        this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);
                }
                catch (err) {
                    this.handleError(targetZone, err);
                }
            };
            // tslint:disable-next-line:require-internal-with-underscore
            _ZoneDelegate.prototype._updateTaskCount = function (type, count) {
                var counts = this._taskCounts;
                var prev = counts[type];
                var next = counts[type] = prev + count;
                if (next < 0) {
                    throw new Error('More tasks executed then were scheduled.');
                }
                if (prev == 0 || next == 0) {
                    var isEmpty = {
                        microTask: counts['microTask'] > 0,
                        macroTask: counts['macroTask'] > 0,
                        eventTask: counts['eventTask'] > 0,
                        change: type
                    };
                    this.hasTask(this.zone, isEmpty);
                }
            };
            return _ZoneDelegate;
        }());
        var ZoneTask = /** @class */ (function () {
            function ZoneTask(type, source, callback, options, scheduleFn, cancelFn) {
                // tslint:disable-next-line:require-internal-with-underscore
                this._zone = null;
                this.runCount = 0;
                // tslint:disable-next-line:require-internal-with-underscore
                this._zoneDelegates = null;
                // tslint:disable-next-line:require-internal-with-underscore
                this._state = 'notScheduled';
                this.type = type;
                this.source = source;
                this.data = options;
                this.scheduleFn = scheduleFn;
                this.cancelFn = cancelFn;
                if (!callback) {
                    throw new Error('callback is not defined');
                }
                this.callback = callback;
                var self = this;
                // TODO: @JiaLiPassion options should have interface
                if (type === eventTask && options && options.useG) {
                    this.invoke = ZoneTask.invokeTask;
                }
                else {
                    this.invoke = function () {
                        return ZoneTask.invokeTask.call(global, self, this, arguments);
                    };
                }
            }
            ZoneTask.invokeTask = function (task, target, args) {
                if (!task) {
                    task = this;
                }
                _numberOfNestedTaskFrames++;
                try {
                    task.runCount++;
                    return task.zone.runTask(task, target, args);
                }
                finally {
                    if (_numberOfNestedTaskFrames == 1) {
                        drainMicroTaskQueue();
                    }
                    _numberOfNestedTaskFrames--;
                }
            };
            Object.defineProperty(ZoneTask.prototype, "zone", {
                get: function () {
                    return this._zone;
                },
                enumerable: false,
                configurable: true
            });
            Object.defineProperty(ZoneTask.prototype, "state", {
                get: function () {
                    return this._state;
                },
                enumerable: false,
                configurable: true
            });
            ZoneTask.prototype.cancelScheduleRequest = function () {
                this._transitionTo(notScheduled, scheduling);
            };
            // tslint:disable-next-line:require-internal-with-underscore
            ZoneTask.prototype._transitionTo = function (toState, fromState1, fromState2) {
                if (this._state === fromState1 || this._state === fromState2) {
                    this._state = toState;
                    if (toState == notScheduled) {
                        this._zoneDelegates = null;
                    }
                }
                else {
                    throw new Error("".concat(this.type, " '").concat(this.source, "': can not transition to '").concat(toState, "', expecting state '").concat(fromState1, "'").concat(fromState2 ? ' or \'' + fromState2 + '\'' : '', ", was '").concat(this._state, "'."));
                }
            };
            ZoneTask.prototype.toString = function () {
                if (this.data && typeof this.data.handleId !== 'undefined') {
                    return this.data.handleId.toString();
                }
                else {
                    return Object.prototype.toString.call(this);
                }
            };
            // add toJSON method to prevent cyclic error when
            // call JSON.stringify(zoneTask)
            ZoneTask.prototype.toJSON = function () {
                return {
                    type: this.type,
                    state: this.state,
                    source: this.source,
                    zone: this.zone.name,
                    runCount: this.runCount
                };
            };
            return ZoneTask;
        }());
        //////////////////////////////////////////////////////
        //////////////////////////////////////////////////////
        ///  MICROTASK QUEUE
        //////////////////////////////////////////////////////
        //////////////////////////////////////////////////////
        var symbolSetTimeout = __symbol__('setTimeout');
        var symbolPromise = __symbol__('Promise');
        var symbolThen = __symbol__('then');
        var _microTaskQueue = [];
        var _isDrainingMicrotaskQueue = false;
        var nativeMicroTaskQueuePromise;
        function nativeScheduleMicroTask(func) {
            if (!nativeMicroTaskQueuePromise) {
                if (global[symbolPromise]) {
                    nativeMicroTaskQueuePromise = global[symbolPromise].resolve(0);
                }
            }
            if (nativeMicroTaskQueuePromise) {
                var nativeThen = nativeMicroTaskQueuePromise[symbolThen];
                if (!nativeThen) {
                    // native Promise is not patchable, we need to use `then` directly
                    // issue 1078
                    nativeThen = nativeMicroTaskQueuePromise['then'];
                }
                nativeThen.call(nativeMicroTaskQueuePromise, func);
            }
            else {
                global[symbolSetTimeout](func, 0);
            }
        }
        function scheduleMicroTask(task) {
            // if we are not running in any task, and there has not been anything scheduled
            // we must bootstrap the initial task creation by manually scheduling the drain
            if (_numberOfNestedTaskFrames === 0 && _microTaskQueue.length === 0) {
                // We are not running in Task, so we need to kickstart the microtask queue.
                nativeScheduleMicroTask(drainMicroTaskQueue);
            }
            task && _microTaskQueue.push(task);
        }
        function drainMicroTaskQueue() {
            if (!_isDrainingMicrotaskQueue) {
                _isDrainingMicrotaskQueue = true;
                while (_microTaskQueue.length) {
                    var queue = _microTaskQueue;
                    _microTaskQueue = [];
                    for (var i = 0; i < queue.length; i++) {
                        var task = queue[i];
                        try {
                            task.zone.runTask(task, null, null);
                        }
                        catch (error) {
                            _api.onUnhandledError(error);
                        }
                    }
                }
                _api.microtaskDrainDone();
                _isDrainingMicrotaskQueue = false;
            }
        }
        //////////////////////////////////////////////////////
        //////////////////////////////////////////////////////
        ///  BOOTSTRAP
        //////////////////////////////////////////////////////
        //////////////////////////////////////////////////////
        var NO_ZONE = { name: 'NO ZONE' };
        var notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling', unknown = 'unknown';
        var microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';
        var patches = {};
        var _api = {
            symbol: __symbol__,
            currentZoneFrame: function () { return _currentZoneFrame; },
            onUnhandledError: noop,
            microtaskDrainDone: noop,
            scheduleMicroTask: scheduleMicroTask,
            showUncaughtError: function () { return !Zone[__symbol__('ignoreConsoleErrorUncaughtError')]; },
            patchEventTarget: function () { return []; },
            patchOnProperties: noop,
            patchMethod: function () { return noop; },
            bindArguments: function () { return []; },
            patchThen: function () { return noop; },
            patchMacroTask: function () { return noop; },
            patchEventPrototype: function () { return noop; },
            isIEOrEdge: function () { return false; },
            getGlobalObjects: function () { return undefined; },
            ObjectDefineProperty: function () { return noop; },
            ObjectGetOwnPropertyDescriptor: function () { return undefined; },
            ObjectCreate: function () { return undefined; },
            ArraySlice: function () { return []; },
            patchClass: function () { return noop; },
            wrapWithCurrentZone: function () { return noop; },
            filterProperties: function () { return []; },
            attachOriginToPatched: function () { return noop; },
            _redefineProperty: function () { return noop; },
            patchCallbacks: function () { return noop; },
            nativeScheduleMicroTask: nativeScheduleMicroTask
        };
        var _currentZoneFrame = { parent: null, zone: new Zone(null, null) };
        var _currentTask = null;
        var _numberOfNestedTaskFrames = 0;
        function noop() { }
        performanceMeasure('Zone', 'Zone');
        return global['Zone'] = Zone;
    }))(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);
    /**
     * A different implementation for monkey patching Promise.
     * Currently Zone.js patches Promise itself with ZoneAwarePromise and also Promise.prototype.then
     * The reason is:
     *
     * 1. Promise.prototype.then should trigger ZoneSpec.scheduleTask and acts as a microTask
     * 2. Promise should be able to controlled by fakeAsync(), so Promise.prototype.then can work as
     * sync operation in fakeAsync()
     * 3. Promise unhandledRejection can be handled by ZoneSpec.onHandleError hook
     *
     * And this implementation also has it's disadvantage.
     *
     * 1. We need to implement a full Promise spec by ourselves.
     * 2. We need to implement the new APIs for Promise such as (all, allSettled, any...) when the new
     * APIs are available.
     * 3. Promise behavior is different with the native one, such as the timing of then callback.
     * 4. Can not handle the some vm operation requires native Promise such as async/await or
     * SafePromise.
     *
     * And this new implementation try to address most of these disadvantages.
     * 1. We don't monkey patch Promise itself any longer.
     * 2. We only monkey patches Promise.prototype.then and schedule microTask from there.
     * 3. The Promise APIs are all using native ones.
     * 4. SafePromise issues are gone, and the timing will be the same with the native one.
     *
     * Also this new implementation introduces breaking changes.
     *
     * 1. Promise can not be easily handled by fakeAsync(), and since we will deprecate fakeAsync() in
     * the future, this is the first step.
     * 2. Promise unhandled rejection happened inside new Promise(callback) will not be handled by
     * ZoneSpec.onHandleError(thenCallback error will not be be impacted).
     *
     * So now we only introduces this change to `zone-node` bundle, since the breaking change will be
     * minor for NodeJS environment,
     * @TODO: JiaLiPassion, we will introduce this change to browser later.
     */
    Zone.__load_patch('ZoneAwarePromise', function (global, Zone, api) {
        var __symbol__ = api.symbol;
        var symbolThen = __symbol__('then');
        api.onUnhandledError = function (e) {
            if (api.showUncaughtError()) {
                var rejection = e && e.rejection;
                if (rejection) {
                    console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection === null || rejection === void 0 ? void 0 : rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);
                }
                else {
                    console.error(e);
                }
            }
        };
        api.microtaskDrainDone = function () { };
        var symbolThenPatched = __symbol__('thenPatched');
        function patchThen(Ctor) {
            var proto = Ctor.prototype;
            if (Ctor[symbolThenPatched] === true) {
                return;
            }
            var prop = Object.getOwnPropertyDescriptor(proto, 'then');
            if (prop && (prop.writable === false || !prop.configurable)) {
                // check Ctor.prototype.then propertyDescriptor is writable or not
                // in meteor env, writable is false, we should ignore such case
                return;
            }
            var originalThen = proto.then;
            // Keep a reference to the original method.
            proto[symbolThen] = originalThen;
            var makeResolver = function (resolveFunc, zone, source, isReject) {
                if (!resolveFunc) {
                    return resolveFunc;
                }
                return function (val) {
                    var task = zone.scheduleMicroTask(source, function () {
                        return typeof resolveFunc === 'function' ? resolveFunc(val) :
                            (isReject ? Promise.reject(val) : val);
                    }, undefined, function () { });
                    return zone.runGuarded(function () {
                        return task.invoke();
                    }, undefined, []);
                };
            };
            Ctor.prototype.then = function (onResolve, onReject) {
                var zone = Zone.current;
                return originalThen.call(this, makeResolver(onResolve, zone, 'Promise.prototype.then', false), makeResolver(onReject, zone, 'Promise.prototype.reject', true));
            };
            Ctor[symbolThenPatched] = true;
        }
        api.patchThen = patchThen;
        if (Promise) {
            patchThen(Promise);
        }
        global[api.symbol('Promise')] = Promise;
        return Promise;
    });
    /**
     * Suppress closure compiler errors about unknown 'Zone' variable
     * @fileoverview
     * @suppress {undefinedVars,globalThis,missingRequire}
     */
    /// <reference types="node"/>
    // issue #989, to reduce bundle size, use short name
    /** Object.getOwnPropertyDescriptor */
    var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
    /** Object.defineProperty */
    var ObjectDefineProperty = Object.defineProperty;
    /** Object.getPrototypeOf */
    var ObjectGetPrototypeOf = Object.getPrototypeOf;
    /** Array.prototype.slice */
    var ArraySlice = Array.prototype.slice;
    /** addEventListener string const */
    var ADD_EVENT_LISTENER_STR = 'addEventListener';
    /** removeEventListener string const */
    var REMOVE_EVENT_LISTENER_STR = 'removeEventListener';
    /** zoneSymbol addEventListener */
    Zone.__symbol__(ADD_EVENT_LISTENER_STR);
    /** zoneSymbol removeEventListener */
    Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);
    /** true string const */
    var TRUE_STR = 'true';
    /** false string const */
    var FALSE_STR = 'false';
    /** Zone symbol prefix string const. */
    var ZONE_SYMBOL_PREFIX = Zone.__symbol__('');
    function wrapWithCurrentZone(callback, source) {
        return Zone.current.wrap(callback, source);
    }
    function scheduleMacroTaskWithCurrentZone(source, callback, data, customSchedule, customCancel) {
        return Zone.current.scheduleMacroTask(source, callback, data, customSchedule, customCancel);
    }
    var zoneSymbol = Zone.__symbol__;
    var isWindowExists = typeof window !== 'undefined';
    var internalWindow = isWindowExists ? window : undefined;
    var _global = isWindowExists && internalWindow || typeof self === 'object' && self || global;
    var REMOVE_ATTRIBUTE = 'removeAttribute';
    function bindArguments(args, source) {
        for (var i = args.length - 1; i >= 0; i--) {
            if (typeof args[i] === 'function') {
                args[i] = wrapWithCurrentZone(args[i], source + '_' + i);
            }
        }
        return args;
    }
    function isPropertyWritable(propertyDesc) {
        if (!propertyDesc) {
            return true;
        }
        if (propertyDesc.writable === false) {
            return false;
        }
        return !(typeof propertyDesc.get === 'function' && typeof propertyDesc.set === 'undefined');
    }
    var isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);
    // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
    // this code.
    var isNode = (!('nw' in _global) && typeof _global.process !== 'undefined' &&
        {}.toString.call(_global.process) === '[object process]');
    var isBrowser = !isNode && !isWebWorker && !!(isWindowExists && internalWindow['HTMLElement']);
    // we are in electron of nw, so we are both browser and nodejs
    // Make sure to access `process` through `_global` so that WebPack does not accidentally browserify
    // this code.
    var isMix = typeof _global.process !== 'undefined' &&
        {}.toString.call(_global.process) === '[object process]' && !isWebWorker &&
        !!(isWindowExists && internalWindow['HTMLElement']);
    var zoneSymbolEventNames$1 = {};
    var wrapFn = function (event) {
        // https://github.com/angular/zone.js/issues/911, in IE, sometimes
        // event will be undefined, so we need to use window.event
        event = event || _global.event;
        if (!event) {
            return;
        }
        var eventNameSymbol = zoneSymbolEventNames$1[event.type];
        if (!eventNameSymbol) {
            eventNameSymbol = zoneSymbolEventNames$1[event.type] = zoneSymbol('ON_PROPERTY' + event.type);
        }
        var target = this || event.target || _global;
        var listener = target[eventNameSymbol];
        var result;
        if (isBrowser && target === internalWindow && event.type === 'error') {
            // window.onerror have different signature
            // https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/onerror#window.onerror
            // and onerror callback will prevent default when callback return true
            var errorEvent = event;
            result = listener &&
                listener.call(this, errorEvent.message, errorEvent.filename, errorEvent.lineno, errorEvent.colno, errorEvent.error);
            if (result === true) {
                event.preventDefault();
            }
        }
        else {
            result = listener && listener.apply(this, arguments);
            if (result != undefined && !result) {
                event.preventDefault();
            }
        }
        return result;
    };
    function patchProperty(obj, prop, prototype) {
        var desc = ObjectGetOwnPropertyDescriptor(obj, prop);
        if (!desc && prototype) {
            // when patch window object, use prototype to check prop exist or not
            var prototypeDesc = ObjectGetOwnPropertyDescriptor(prototype, prop);
            if (prototypeDesc) {
                desc = { enumerable: true, configurable: true };
            }
        }
        // if the descriptor not exists or is not configurable
        // just return
        if (!desc || !desc.configurable) {
            return;
        }
        var onPropPatchedSymbol = zoneSymbol('on' + prop + 'patched');
        if (obj.hasOwnProperty(onPropPatchedSymbol) && obj[onPropPatchedSymbol]) {
            return;
        }
        // A property descriptor cannot have getter/setter and be writable
        // deleting the writable and value properties avoids this error:
        //
        // TypeError: property descriptors must not specify a value or be writable when a
        // getter or setter has been specified
        delete desc.writable;
        delete desc.value;
        var originalDescGet = desc.get;
        var originalDescSet = desc.set;
        // slice(2) cuz 'onclick' -> 'click', etc
        var eventName = prop.slice(2);
        var eventNameSymbol = zoneSymbolEventNames$1[eventName];
        if (!eventNameSymbol) {
            eventNameSymbol = zoneSymbolEventNames$1[eventName] = zoneSymbol('ON_PROPERTY' + eventName);
        }
        desc.set = function (newValue) {
            // in some of windows's onproperty callback, this is undefined
            // so we need to check it
            var target = this;
            if (!target && obj === _global) {
                target = _global;
            }
            if (!target) {
                return;
            }
            var previousValue = target[eventNameSymbol];
            if (typeof previousValue === 'function') {
                target.removeEventListener(eventName, wrapFn);
            }
            // issue #978, when onload handler was added before loading zone.js
            // we should remove it with originalDescSet
            originalDescSet && originalDescSet.call(target, null);
            target[eventNameSymbol] = newValue;
            if (typeof newValue === 'function') {
                target.addEventListener(eventName, wrapFn, false);
            }
        };
        // The getter would return undefined for unassigned properties but the default value of an
        // unassigned property is null
        desc.get = function () {
            // in some of windows's onproperty callback, this is undefined
            // so we need to check it
            var target = this;
            if (!target && obj === _global) {
                target = _global;
            }
            if (!target) {
                return null;
            }
            var listener = target[eventNameSymbol];
            if (listener) {
                return listener;
            }
            else if (originalDescGet) {
                // result will be null when use inline event attribute,
                // such as <button onclick="func();">OK</button>
                // because the onclick function is internal raw uncompiled handler
                // the onclick will be evaluated when first time event was triggered or
                // the property is accessed, https://github.com/angular/zone.js/issues/525
                // so we should use original native get to retrieve the handler
                var value = originalDescGet.call(this);
                if (value) {
                    desc.set.call(this, value);
                    if (typeof target[REMOVE_ATTRIBUTE] === 'function') {
                        target.removeAttribute(prop);
                    }
                    return value;
                }
            }
            return null;
        };
        ObjectDefineProperty(obj, prop, desc);
        obj[onPropPatchedSymbol] = true;
    }
    function patchOnProperties(obj, properties, prototype) {
        if (properties) {
            for (var i = 0; i < properties.length; i++) {
                patchProperty(obj, 'on' + properties[i], prototype);
            }
        }
        else {
            var onProperties = [];
            for (var prop in obj) {
                if (prop.slice(0, 2) == 'on') {
                    onProperties.push(prop);
                }
            }
            for (var j = 0; j < onProperties.length; j++) {
                patchProperty(obj, onProperties[j], prototype);
            }
        }
    }
    zoneSymbol('originalInstance');
    function copySymbolProperties(src, dest) {
        if (typeof Object.getOwnPropertySymbols !== 'function') {
            return;
        }
        var symbols = Object.getOwnPropertySymbols(src);
        symbols.forEach(function (symbol) {
            var desc = Object.getOwnPropertyDescriptor(src, symbol);
            Object.defineProperty(dest, symbol, {
                get: function () {
                    return src[symbol];
                },
                set: function (value) {
                    if (desc && (!desc.writable || typeof desc.set !== 'function')) {
                        // if src[symbol] is not writable or not have a setter, just return
                        return;
                    }
                    src[symbol] = value;
                },
                enumerable: desc ? desc.enumerable : true,
                configurable: desc ? desc.configurable : true
            });
        });
    }
    var shouldCopySymbolProperties = false;
    function setShouldCopySymbolProperties(flag) {
        shouldCopySymbolProperties = flag;
    }
    function patchMethod(target, name, patchFn) {
        var proto = target;
        while (proto && !proto.hasOwnProperty(name)) {
            proto = ObjectGetPrototypeOf(proto);
        }
        if (!proto && target[name]) {
            // somehow we did not find it, but we can see it. This happens on IE for Window properties.
            proto = target;
        }
        var delegateName = zoneSymbol(name);
        var delegate = null;
        if (proto && (!(delegate = proto[delegateName]) || !proto.hasOwnProperty(delegateName))) {
            delegate = proto[delegateName] = proto[name];
            // check whether proto[name] is writable
            // some property is readonly in safari, such as HtmlCanvasElement.prototype.toBlob
            var desc = proto && ObjectGetOwnPropertyDescriptor(proto, name);
            if (isPropertyWritable(desc)) {
                var patchDelegate_1 = patchFn(delegate, delegateName, name);
                proto[name] = function () {
                    return patchDelegate_1(this, arguments);
                };
                attachOriginToPatched(proto[name], delegate);
                if (shouldCopySymbolProperties) {
                    copySymbolProperties(delegate, proto[name]);
                }
            }
        }
        return delegate;
    }
    // TODO: @JiaLiPassion, support cancel task later if necessary
    function patchMacroTask(obj, funcName, metaCreator) {
        var setNative = null;
        function scheduleTask(task) {
            var data = task.data;
            data.args[data.cbIdx] = function () {
                task.invoke.apply(this, arguments);
            };
            setNative.apply(data.target, data.args);
            return task;
        }
        setNative = patchMethod(obj, funcName, function (delegate) { return function (self, args) {
            var meta = metaCreator(self, args);
            if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
                return scheduleMacroTaskWithCurrentZone(meta.name, args[meta.cbIdx], meta, scheduleTask);
            }
            else {
                // cause an error by calling it directly.
                return delegate.apply(self, args);
            }
        }; });
    }
    function patchMicroTask(obj, funcName, metaCreator) {
        var setNative = null;
        function scheduleTask(task) {
            var data = task.data;
            data.args[data.cbIdx] = function () {
                task.invoke.apply(this, arguments);
            };
            setNative.apply(data.target, data.args);
            return task;
        }
        setNative = patchMethod(obj, funcName, function (delegate) { return function (self, args) {
            var meta = metaCreator(self, args);
            if (meta.cbIdx >= 0 && typeof args[meta.cbIdx] === 'function') {
                return Zone.current.scheduleMicroTask(meta.name, args[meta.cbIdx], meta, scheduleTask);
            }
            else {
                // cause an error by calling it directly.
                return delegate.apply(self, args);
            }
        }; });
    }
    function attachOriginToPatched(patched, original) {
        patched[zoneSymbol('OriginalDelegate')] = original;
    }
    // override Function.prototype.toString to make zone.js patched function
    // look like native function
    Zone.__load_patch('toString', function (global) {
        // patch Func.prototype.toString to let them look like native
        var originalFunctionToString = Function.prototype.toString;
        var ORIGINAL_DELEGATE_SYMBOL = zoneSymbol('OriginalDelegate');
        var PROMISE_SYMBOL = zoneSymbol('Promise');
        var ERROR_SYMBOL = zoneSymbol('Error');
        var newFunctionToString = function toString() {
            if (typeof this === 'function') {
                var originalDelegate = this[ORIGINAL_DELEGATE_SYMBOL];
                if (originalDelegate) {
                    if (typeof originalDelegate === 'function') {
                        return originalFunctionToString.call(originalDelegate);
                    }
                    else {
                        return Object.prototype.toString.call(originalDelegate);
                    }
                }
                if (this === Promise) {
                    var nativePromise = global[PROMISE_SYMBOL];
                    if (nativePromise) {
                        return originalFunctionToString.call(nativePromise);
                    }
                }
                if (this === Error) {
                    var nativeError = global[ERROR_SYMBOL];
                    if (nativeError) {
                        return originalFunctionToString.call(nativeError);
                    }
                }
            }
            return originalFunctionToString.call(this);
        };
        newFunctionToString[ORIGINAL_DELEGATE_SYMBOL] = originalFunctionToString;
        Function.prototype.toString = newFunctionToString;
        // patch Object.prototype.toString to let them look like native
        var originalObjectToString = Object.prototype.toString;
        var PROMISE_OBJECT_TO_STRING = '[object Promise]';
        Object.prototype.toString = function () {
            if (typeof Promise === 'function' && this instanceof Promise) {
                return PROMISE_OBJECT_TO_STRING;
            }
            return originalObjectToString.call(this);
        };
    });
    Zone.__load_patch('node_util', function (global, Zone, api) {
        api.patchOnProperties = patchOnProperties;
        api.patchMethod = patchMethod;
        api.bindArguments = bindArguments;
        api.patchMacroTask = patchMacroTask;
        setShouldCopySymbolProperties(true);
    });
    /**
     * @fileoverview
     * @suppress {missingRequire}
     */
    var passiveSupported = false;
    if (typeof window !== 'undefined') {
        try {
            var options = Object.defineProperty({}, 'passive', {
                get: function () {
                    passiveSupported = true;
                }
            });
            // Note: We pass the `options` object as the event handler too. This is not compatible with the
            // signature of `addEventListener` or `removeEventListener` but enables us to remove the handler
            // without an actual handler.
            window.addEventListener('test', options, options);
            window.removeEventListener('test', options, options);
        }
        catch (err) {
            passiveSupported = false;
        }
    }
    // an identifier to tell ZoneTask do not create a new invoke closure
    var OPTIMIZED_ZONE_EVENT_TASK_DATA = {
        useG: true
    };
    var zoneSymbolEventNames = {};
    var globalSources = {};
    var EVENT_NAME_SYMBOL_REGX = new RegExp('^' + ZONE_SYMBOL_PREFIX + '(\\w+)(true|false)$');
    var IMMEDIATE_PROPAGATION_SYMBOL = zoneSymbol('propagationStopped');
    function prepareEventNames(eventName, eventNameToString) {
        var falseEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + FALSE_STR;
        var trueEventName = (eventNameToString ? eventNameToString(eventName) : eventName) + TRUE_STR;
        var symbol = ZONE_SYMBOL_PREFIX + falseEventName;
        var symbolCapture = ZONE_SYMBOL_PREFIX + trueEventName;
        zoneSymbolEventNames[eventName] = {};
        zoneSymbolEventNames[eventName][FALSE_STR] = symbol;
        zoneSymbolEventNames[eventName][TRUE_STR] = symbolCapture;
    }
    function patchEventTarget(_global, api, apis, patchOptions) {
        var ADD_EVENT_LISTENER = (patchOptions && patchOptions.add) || ADD_EVENT_LISTENER_STR;
        var REMOVE_EVENT_LISTENER = (patchOptions && patchOptions.rm) || REMOVE_EVENT_LISTENER_STR;
        var LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.listeners) || 'eventListeners';
        var REMOVE_ALL_LISTENERS_EVENT_LISTENER = (patchOptions && patchOptions.rmAll) || 'removeAllListeners';
        var zoneSymbolAddEventListener = zoneSymbol(ADD_EVENT_LISTENER);
        var ADD_EVENT_LISTENER_SOURCE = '.' + ADD_EVENT_LISTENER + ':';
        var PREPEND_EVENT_LISTENER = 'prependListener';
        var PREPEND_EVENT_LISTENER_SOURCE = '.' + PREPEND_EVENT_LISTENER + ':';
        var invokeTask = function (task, target, event) {
            // for better performance, check isRemoved which is set
            // by removeEventListener
            if (task.isRemoved) {
                return;
            }
            var delegate = task.callback;
            if (typeof delegate === 'object' && delegate.handleEvent) {
                // create the bind version of handleEvent when invoke
                task.callback = function (event) { return delegate.handleEvent(event); };
                task.originalDelegate = delegate;
            }
            // invoke static task.invoke
            // need to try/catch error here, otherwise, the error in one event listener
            // will break the executions of the other event listeners. Also error will
            // not remove the event listener when `once` options is true.
            var error;
            try {
                task.invoke(task, target, [event]);
            }
            catch (err) {
                error = err;
            }
            var options = task.options;
            if (options && typeof options === 'object' && options.once) {
                // if options.once is true, after invoke once remove listener here
                // only browser need to do this, nodejs eventEmitter will cal removeListener
                // inside EventEmitter.once
                var delegate_1 = task.originalDelegate ? task.originalDelegate : task.callback;
                target[REMOVE_EVENT_LISTENER].call(target, event.type, delegate_1, options);
            }
            return error;
        };
        function globalCallback(context, event, isCapture) {
            // https://github.com/angular/zone.js/issues/911, in IE, sometimes
            // event will be undefined, so we need to use window.event
            event = event || _global.event;
            if (!event) {
                return;
            }
            // event.target is needed for Samsung TV and SourceBuffer
            // || global is needed https://github.com/angular/zone.js/issues/190
            var target = context || event.target || _global;
            var tasks = target[zoneSymbolEventNames[event.type][isCapture ? TRUE_STR : FALSE_STR]];
            if (tasks) {
                var errors = [];
                // invoke all tasks which attached to current target with given event.type and capture = false
                // for performance concern, if task.length === 1, just invoke
                if (tasks.length === 1) {
                    var err = invokeTask(tasks[0], target, event);
                    err && errors.push(err);
                }
                else {
                    // https://github.com/angular/zone.js/issues/836
                    // copy the tasks array before invoke, to avoid
                    // the callback will remove itself or other listener
                    var copyTasks = tasks.slice();
                    for (var i = 0; i < copyTasks.length; i++) {
                        if (event && event[IMMEDIATE_PROPAGATION_SYMBOL] === true) {
                            break;
                        }
                        var err = invokeTask(copyTasks[i], target, event);
                        err && errors.push(err);
                    }
                }
                // Since there is only one error, we don't need to schedule microTask
                // to throw the error.
                if (errors.length === 1) {
                    throw errors[0];
                }
                else {
                    var _loop_1 = function (i) {
                        var err = errors[i];
                        api.nativeScheduleMicroTask(function () {
                            throw err;
                        });
                    };
                    for (var i = 0; i < errors.length; i++) {
                        _loop_1(i);
                    }
                }
            }
        }
        // global shared zoneAwareCallback to handle all event callback with capture = false
        var globalZoneAwareCallback = function (event) {
            return globalCallback(this, event, false);
        };
        // global shared zoneAwareCallback to handle all event callback with capture = true
        var globalZoneAwareCaptureCallback = function (event) {
            return globalCallback(this, event, true);
        };
        function patchEventTargetMethods(obj, patchOptions) {
            if (!obj) {
                return false;
            }
            var useGlobalCallback = true;
            if (patchOptions && patchOptions.useG !== undefined) {
                useGlobalCallback = patchOptions.useG;
            }
            var validateHandler = patchOptions && patchOptions.vh;
            var checkDuplicate = true;
            if (patchOptions && patchOptions.chkDup !== undefined) {
                checkDuplicate = patchOptions.chkDup;
            }
            var returnTarget = false;
            if (patchOptions && patchOptions.rt !== undefined) {
                returnTarget = patchOptions.rt;
            }
            var proto = obj;
            while (proto && !proto.hasOwnProperty(ADD_EVENT_LISTENER)) {
                proto = ObjectGetPrototypeOf(proto);
            }
            if (!proto && obj[ADD_EVENT_LISTENER]) {
                // somehow we did not find it, but we can see it. This happens on IE for Window properties.
                proto = obj;
            }
            if (!proto) {
                return false;
            }
            if (proto[zoneSymbolAddEventListener]) {
                return false;
            }
            var eventNameToString = patchOptions && patchOptions.eventNameToString;
            // a shared global taskData to pass data for scheduleEventTask
            // so we do not need to create a new object just for pass some data
            var taskData = {};
            var nativeAddEventListener = proto[zoneSymbolAddEventListener] = proto[ADD_EVENT_LISTENER];
            var nativeRemoveEventListener = proto[zoneSymbol(REMOVE_EVENT_LISTENER)] =
                proto[REMOVE_EVENT_LISTENER];
            var nativeListeners = proto[zoneSymbol(LISTENERS_EVENT_LISTENER)] =
                proto[LISTENERS_EVENT_LISTENER];
            var nativeRemoveAllListeners = proto[zoneSymbol(REMOVE_ALL_LISTENERS_EVENT_LISTENER)] =
                proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER];
            var nativePrependEventListener;
            if (patchOptions && patchOptions.prepend) {
                nativePrependEventListener = proto[zoneSymbol(patchOptions.prepend)] =
                    proto[patchOptions.prepend];
            }
            /**
             * This util function will build an option object with passive option
             * to handle all possible input from the user.
             */
            function buildEventListenerOptions(options, passive) {
                if (!passiveSupported && typeof options === 'object' && options) {
                    // doesn't support passive but user want to pass an object as options.
                    // this will not work on some old browser, so we just pass a boolean
                    // as useCapture parameter
                    return !!options.capture;
                }
                if (!passiveSupported || !passive) {
                    return options;
                }
                if (typeof options === 'boolean') {
                    return { capture: options, passive: true };
                }
                if (!options) {
                    return { passive: true };
                }
                if (typeof options === 'object' && options.passive !== false) {
                    return __assign(__assign({}, options), { passive: true });
                }
                return options;
            }
            var customScheduleGlobal = function (task) {
                // if there is already a task for the eventName + capture,
                // just return, because we use the shared globalZoneAwareCallback here.
                if (taskData.isExisting) {
                    return;
                }
                return nativeAddEventListener.call(taskData.target, taskData.eventName, taskData.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, taskData.options);
            };
            var customCancelGlobal = function (task) {
                // if task is not marked as isRemoved, this call is directly
                // from Zone.prototype.cancelTask, we should remove the task
                // from tasksList of target first
                if (!task.isRemoved) {
                    var symbolEventNames = zoneSymbolEventNames[task.eventName];
                    var symbolEventName = void 0;
                    if (symbolEventNames) {
                        symbolEventName = symbolEventNames[task.capture ? TRUE_STR : FALSE_STR];
                    }
                    var existingTasks = symbolEventName && task.target[symbolEventName];
                    if (existingTasks) {
                        for (var i = 0; i < existingTasks.length; i++) {
                            var existingTask = existingTasks[i];
                            if (existingTask === task) {
                                existingTasks.splice(i, 1);
                                // set isRemoved to data for faster invokeTask check
                                task.isRemoved = true;
                                if (existingTasks.length === 0) {
                                    // all tasks for the eventName + capture have gone,
                                    // remove globalZoneAwareCallback and remove the task cache from target
                                    task.allRemoved = true;
                                    task.target[symbolEventName] = null;
                                }
                                break;
                            }
                        }
                    }
                }
                // if all tasks for the eventName + capture have gone,
                // we will really remove the global event callback,
                // if not, return
                if (!task.allRemoved) {
                    return;
                }
                return nativeRemoveEventListener.call(task.target, task.eventName, task.capture ? globalZoneAwareCaptureCallback : globalZoneAwareCallback, task.options);
            };
            var customScheduleNonGlobal = function (task) {
                return nativeAddEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
            };
            var customSchedulePrepend = function (task) {
                return nativePrependEventListener.call(taskData.target, taskData.eventName, task.invoke, taskData.options);
            };
            var customCancelNonGlobal = function (task) {
                return nativeRemoveEventListener.call(task.target, task.eventName, task.invoke, task.options);
            };
            var customSchedule = useGlobalCallback ? customScheduleGlobal : customScheduleNonGlobal;
            var customCancel = useGlobalCallback ? customCancelGlobal : customCancelNonGlobal;
            var compareTaskCallbackVsDelegate = function (task, delegate) {
                var typeOfDelegate = typeof delegate;
                return (typeOfDelegate === 'function' && task.callback === delegate) ||
                    (typeOfDelegate === 'object' && task.originalDelegate === delegate);
            };
            var compare = (patchOptions && patchOptions.diff) ? patchOptions.diff : compareTaskCallbackVsDelegate;
            var unpatchedEvents = Zone[zoneSymbol('UNPATCHED_EVENTS')];
            var passiveEvents = _global[zoneSymbol('PASSIVE_EVENTS')];
            var makeAddListener = function (nativeListener, addSource, customScheduleFn, customCancelFn, returnTarget, prepend) {
                if (returnTarget === void 0) { returnTarget = false; }
                if (prepend === void 0) { prepend = false; }
                return function () {
                    var target = this || _global;
                    var eventName = arguments[0];
                    if (patchOptions && patchOptions.transferEventName) {
                        eventName = patchOptions.transferEventName(eventName);
                    }
                    var delegate = arguments[1];
                    if (!delegate) {
                        return nativeListener.apply(this, arguments);
                    }
                    if (isNode && eventName === 'uncaughtException') {
                        // don't patch uncaughtException of nodejs to prevent endless loop
                        return nativeListener.apply(this, arguments);
                    }
                    // don't create the bind delegate function for handleEvent
                    // case here to improve addEventListener performance
                    // we will create the bind delegate when invoke
                    var isHandleEvent = false;
                    if (typeof delegate !== 'function') {
                        if (!delegate.handleEvent) {
                            return nativeListener.apply(this, arguments);
                        }
                        isHandleEvent = true;
                    }
                    if (validateHandler && !validateHandler(nativeListener, delegate, target, arguments)) {
                        return;
                    }
                    var passive = passiveSupported && !!passiveEvents && passiveEvents.indexOf(eventName) !== -1;
                    var options = buildEventListenerOptions(arguments[2], passive);
                    if (unpatchedEvents) {
                        // check unpatched list
                        for (var i = 0; i < unpatchedEvents.length; i++) {
                            if (eventName === unpatchedEvents[i]) {
                                if (passive) {
                                    return nativeListener.call(target, eventName, delegate, options);
                                }
                                else {
                                    return nativeListener.apply(this, arguments);
                                }
                            }
                        }
                    }
                    var capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
                    var once = options && typeof options === 'object' ? options.once : false;
                    var zone = Zone.current;
                    var symbolEventNames = zoneSymbolEventNames[eventName];
                    if (!symbolEventNames) {
                        prepareEventNames(eventName, eventNameToString);
                        symbolEventNames = zoneSymbolEventNames[eventName];
                    }
                    var symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
                    var existingTasks = target[symbolEventName];
                    var isExisting = false;
                    if (existingTasks) {
                        // already have task registered
                        isExisting = true;
                        if (checkDuplicate) {
                            for (var i = 0; i < existingTasks.length; i++) {
                                if (compare(existingTasks[i], delegate)) {
                                    // same callback, same capture, same event name, just return
                                    return;
                                }
                            }
                        }
                    }
                    else {
                        existingTasks = target[symbolEventName] = [];
                    }
                    var source;
                    var constructorName = target.constructor['name'];
                    var targetSource = globalSources[constructorName];
                    if (targetSource) {
                        source = targetSource[eventName];
                    }
                    if (!source) {
                        source = constructorName + addSource +
                            (eventNameToString ? eventNameToString(eventName) : eventName);
                    }
                    // do not create a new object as task.data to pass those things
                    // just use the global shared one
                    taskData.options = options;
                    if (once) {
                        // if addEventListener with once options, we don't pass it to
                        // native addEventListener, instead we keep the once setting
                        // and handle ourselves.
                        taskData.options.once = false;
                    }
                    taskData.target = target;
                    taskData.capture = capture;
                    taskData.eventName = eventName;
                    taskData.isExisting = isExisting;
                    var data = useGlobalCallback ? OPTIMIZED_ZONE_EVENT_TASK_DATA : undefined;
                    // keep taskData into data to allow onScheduleEventTask to access the task information
                    if (data) {
                        data.taskData = taskData;
                    }
                    var task = zone.scheduleEventTask(source, delegate, data, customScheduleFn, customCancelFn);
                    // should clear taskData.target to avoid memory leak
                    // issue, https://github.com/angular/angular/issues/20442
                    taskData.target = null;
                    // need to clear up taskData because it is a global object
                    if (data) {
                        data.taskData = null;
                    }
                    // have to save those information to task in case
                    // application may call task.zone.cancelTask() directly
                    if (once) {
                        options.once = true;
                    }
                    if (!(!passiveSupported && typeof task.options === 'boolean')) {
                        // if not support passive, and we pass an option object
                        // to addEventListener, we should save the options to task
                        task.options = options;
                    }
                    task.target = target;
                    task.capture = capture;
                    task.eventName = eventName;
                    if (isHandleEvent) {
                        // save original delegate for compare to check duplicate
                        task.originalDelegate = delegate;
                    }
                    if (!prepend) {
                        existingTasks.push(task);
                    }
                    else {
                        existingTasks.unshift(task);
                    }
                    if (returnTarget) {
                        return target;
                    }
                };
            };
            proto[ADD_EVENT_LISTENER] = makeAddListener(nativeAddEventListener, ADD_EVENT_LISTENER_SOURCE, customSchedule, customCancel, returnTarget);
            if (nativePrependEventListener) {
                proto[PREPEND_EVENT_LISTENER] = makeAddListener(nativePrependEventListener, PREPEND_EVENT_LISTENER_SOURCE, customSchedulePrepend, customCancel, returnTarget, true);
            }
            proto[REMOVE_EVENT_LISTENER] = function () {
                var target = this || _global;
                var eventName = arguments[0];
                if (patchOptions && patchOptions.transferEventName) {
                    eventName = patchOptions.transferEventName(eventName);
                }
                var options = arguments[2];
                var capture = !options ? false : typeof options === 'boolean' ? true : options.capture;
                var delegate = arguments[1];
                if (!delegate) {
                    return nativeRemoveEventListener.apply(this, arguments);
                }
                if (validateHandler &&
                    !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {
                    return;
                }
                var symbolEventNames = zoneSymbolEventNames[eventName];
                var symbolEventName;
                if (symbolEventNames) {
                    symbolEventName = symbolEventNames[capture ? TRUE_STR : FALSE_STR];
                }
                var existingTasks = symbolEventName && target[symbolEventName];
                if (existingTasks) {
                    for (var i = 0; i < existingTasks.length; i++) {
                        var existingTask = existingTasks[i];
                        if (compare(existingTask, delegate)) {
                            existingTasks.splice(i, 1);
                            // set isRemoved to data for faster invokeTask check
                            existingTask.isRemoved = true;
                            if (existingTasks.length === 0) {
                                // all tasks for the eventName + capture have gone,
                                // remove globalZoneAwareCallback and remove the task cache from target
                                existingTask.allRemoved = true;
                                target[symbolEventName] = null;
                                // in the target, we have an event listener which is added by on_property
                                // such as target.onclick = function() {}, so we need to clear this internal
                                // property too if all delegates all removed
                                if (typeof eventName === 'string') {
                                    var onPropertySymbol = ZONE_SYMBOL_PREFIX + 'ON_PROPERTY' + eventName;
                                    target[onPropertySymbol] = null;
                                }
                            }
                            existingTask.zone.cancelTask(existingTask);
                            if (returnTarget) {
                                return target;
                            }
                            return;
                        }
                    }
                }
                // issue 930, didn't find the event name or callback
                // from zone kept existingTasks, the callback maybe
                // added outside of zone, we need to call native removeEventListener
                // to try to remove it.
                return nativeRemoveEventListener.apply(this, arguments);
            };
            proto[LISTENERS_EVENT_LISTENER] = function () {
                var target = this || _global;
                var eventName = arguments[0];
                if (patchOptions && patchOptions.transferEventName) {
                    eventName = patchOptions.transferEventName(eventName);
                }
                var listeners = [];
                var tasks = findEventTasks(target, eventNameToString ? eventNameToString(eventName) : eventName);
                for (var i = 0; i < tasks.length; i++) {
                    var task = tasks[i];
                    var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
                    listeners.push(delegate);
                }
                return listeners;
            };
            proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER] = function () {
                var target = this || _global;
                var eventName = arguments[0];
                if (!eventName) {
                    var keys = Object.keys(target);
                    for (var i = 0; i < keys.length; i++) {
                        var prop = keys[i];
                        var match = EVENT_NAME_SYMBOL_REGX.exec(prop);
                        var evtName = match && match[1];
                        // in nodejs EventEmitter, removeListener event is
                        // used for monitoring the removeListener call,
                        // so just keep removeListener eventListener until
                        // all other eventListeners are removed
                        if (evtName && evtName !== 'removeListener') {
                            this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, evtName);
                        }
                    }
                    // remove removeListener listener finally
                    this[REMOVE_ALL_LISTENERS_EVENT_LISTENER].call(this, 'removeListener');
                }
                else {
                    if (patchOptions && patchOptions.transferEventName) {
                        eventName = patchOptions.transferEventName(eventName);
                    }
                    var symbolEventNames = zoneSymbolEventNames[eventName];
                    if (symbolEventNames) {
                        var symbolEventName = symbolEventNames[FALSE_STR];
                        var symbolCaptureEventName = symbolEventNames[TRUE_STR];
                        var tasks = target[symbolEventName];
                        var captureTasks = target[symbolCaptureEventName];
                        if (tasks) {
                            var removeTasks = tasks.slice();
                            for (var i = 0; i < removeTasks.length; i++) {
                                var task = removeTasks[i];
                                var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
                                this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
                            }
                        }
                        if (captureTasks) {
                            var removeTasks = captureTasks.slice();
                            for (var i = 0; i < removeTasks.length; i++) {
                                var task = removeTasks[i];
                                var delegate = task.originalDelegate ? task.originalDelegate : task.callback;
                                this[REMOVE_EVENT_LISTENER].call(this, eventName, delegate, task.options);
                            }
                        }
                    }
                }
                if (returnTarget) {
                    return this;
                }
            };
            // for native toString patch
            attachOriginToPatched(proto[ADD_EVENT_LISTENER], nativeAddEventListener);
            attachOriginToPatched(proto[REMOVE_EVENT_LISTENER], nativeRemoveEventListener);
            if (nativeRemoveAllListeners) {
                attachOriginToPatched(proto[REMOVE_ALL_LISTENERS_EVENT_LISTENER], nativeRemoveAllListeners);
            }
            if (nativeListeners) {
                attachOriginToPatched(proto[LISTENERS_EVENT_LISTENER], nativeListeners);
            }
            return true;
        }
        var results = [];
        for (var i = 0; i < apis.length; i++) {
            results[i] = patchEventTargetMethods(apis[i], patchOptions);
        }
        return results;
    }
    function findEventTasks(target, eventName) {
        if (!eventName) {
            var foundTasks = [];
            for (var prop in target) {
                var match = EVENT_NAME_SYMBOL_REGX.exec(prop);
                var evtName = match && match[1];
                if (evtName && (!eventName || evtName === eventName)) {
                    var tasks = target[prop];
                    if (tasks) {
                        for (var i = 0; i < tasks.length; i++) {
                            foundTasks.push(tasks[i]);
                        }
                    }
                }
            }
            return foundTasks;
        }
        var symbolEventName = zoneSymbolEventNames[eventName];
        if (!symbolEventName) {
            prepareEventNames(eventName);
            symbolEventName = zoneSymbolEventNames[eventName];
        }
        var captureFalseTasks = target[symbolEventName[FALSE_STR]];
        var captureTrueTasks = target[symbolEventName[TRUE_STR]];
        if (!captureFalseTasks) {
            return captureTrueTasks ? captureTrueTasks.slice() : [];
        }
        else {
            return captureTrueTasks ? captureFalseTasks.concat(captureTrueTasks) :
                captureFalseTasks.slice();
        }
    }
    Zone.__load_patch('EventEmitter', function (global, Zone, api) {
        // For EventEmitter
        var EE_ADD_LISTENER = 'addListener';
        var EE_PREPEND_LISTENER = 'prependListener';
        var EE_REMOVE_LISTENER = 'removeListener';
        var EE_REMOVE_ALL_LISTENER = 'removeAllListeners';
        var EE_LISTENERS = 'listeners';
        var EE_ON = 'on';
        var EE_OFF = 'off';
        var compareTaskCallbackVsDelegate = function (task, delegate) {
            // same callback, same capture, same event name, just return
            return task.callback === delegate || task.callback.listener === delegate;
        };
        var eventNameToString = function (eventName) {
            if (typeof eventName === 'string') {
                return eventName;
            }
            if (!eventName) {
                return '';
            }
            return eventName.toString().replace('(', '_').replace(')', '_');
        };
        function patchEventEmitterMethods(obj) {
            var result = patchEventTarget(global, api, [obj], {
                useG: false,
                add: EE_ADD_LISTENER,
                rm: EE_REMOVE_LISTENER,
                prepend: EE_PREPEND_LISTENER,
                rmAll: EE_REMOVE_ALL_LISTENER,
                listeners: EE_LISTENERS,
                chkDup: false,
                rt: true,
                diff: compareTaskCallbackVsDelegate,
                eventNameToString: eventNameToString
            });
            if (result && result[0]) {
                obj[EE_ON] = obj[EE_ADD_LISTENER];
                obj[EE_OFF] = obj[EE_REMOVE_LISTENER];
            }
        }
        // EventEmitter
        var events;
        try {
            events = require('events');
        }
        catch (err) {
        }
        if (events && events.EventEmitter) {
            patchEventEmitterMethods(events.EventEmitter.prototype);
        }
    });
    Zone.__load_patch('fs', function () {
        var fs;
        try {
            fs = require('fs');
        }
        catch (err) {
        }
        // watch, watchFile, unwatchFile has been patched
        // because EventEmitter has been patched
        var TO_PATCH_MACROTASK_METHODS = [
            'access', 'appendFile', 'chmod', 'chown', 'close', 'exists', 'fchmod',
            'fchown', 'fdatasync', 'fstat', 'fsync', 'ftruncate', 'futimes', 'lchmod',
            'lchown', 'link', 'lstat', 'mkdir', 'mkdtemp', 'open', 'read',
            'readdir', 'readFile', 'readlink', 'realpath', 'rename', 'rmdir', 'stat',
            'symlink', 'truncate', 'unlink', 'utimes', 'write', 'writeFile',
        ];
        if (fs) {
            TO_PATCH_MACROTASK_METHODS.filter(function (name) { return !!fs[name] && typeof fs[name] === 'function'; })
                .forEach(function (name) {
                patchMacroTask(fs, name, function (self, args) {
                    return {
                        name: 'fs.' + name,
                        args: args,
                        cbIdx: args.length > 0 ? args.length - 1 : -1,
                        target: self
                    };
                });
            });
        }
    });
    /**
     * @fileoverview
     * @suppress {missingRequire}
     */
    var taskSymbol = zoneSymbol('zoneTask');
    function patchTimer(window, setName, cancelName, nameSuffix) {
        var setNative = null;
        var clearNative = null;
        setName += nameSuffix;
        cancelName += nameSuffix;
        var tasksByHandleId = {};
        function scheduleTask(task) {
            var data = task.data;
            data.args[0] = function () {
                return task.invoke.apply(this, arguments);
            };
            data.handleId = setNative.apply(window, data.args);
            return task;
        }
        function clearTask(task) {
            return clearNative.call(window, task.data.handleId);
        }
        setNative =
            patchMethod(window, setName, function (delegate) { return function (self, args) {
                if (typeof args[0] === 'function') {
                    var options_1 = {
                        isPeriodic: nameSuffix === 'Interval',
                        delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 :
                            undefined,
                        args: args
                    };
                    var callback_1 = args[0];
                    args[0] = function timer() {
                        try {
                            return callback_1.apply(this, arguments);
                        }
                        finally {
                            // issue-934, task will be cancelled
                            // even it is a periodic task such as
                            // setInterval
                            // https://github.com/angular/angular/issues/40387
                            // Cleanup tasksByHandleId should be handled before scheduleTask
                            // Since some zoneSpec may intercept and doesn't trigger
                            // scheduleFn(scheduleTask) provided here.
                            if (!(options_1.isPeriodic)) {
                                if (typeof options_1.handleId === 'number') {
                                    // in non-nodejs env, we remove timerId
                                    // from local cache
                                    delete tasksByHandleId[options_1.handleId];
                                }
                                else if (options_1.handleId) {
                                    // Node returns complex objects as handleIds
                                    // we remove task reference from timer object
                                    options_1.handleId[taskSymbol] = null;
                                }
                            }
                        }
                    };
                    var task = scheduleMacroTaskWithCurrentZone(setName, args[0], options_1, scheduleTask, clearTask);
                    if (!task) {
                        return task;
                    }
                    // Node.js must additionally support the ref and unref functions.
                    var handle = task.data.handleId;
                    if (typeof handle === 'number') {
                        // for non nodejs env, we save handleId: task
                        // mapping in local cache for clearTimeout
                        tasksByHandleId[handle] = task;
                    }
                    else if (handle) {
                        // for nodejs env, we save task
                        // reference in timerId Object for clearTimeout
                        handle[taskSymbol] = task;
                    }
                    // check whether handle is null, because some polyfill or browser
                    // may return undefined from setTimeout/setInterval/setImmediate/requestAnimationFrame
                    if (handle && handle.ref && handle.unref && typeof handle.ref === 'function' &&
                        typeof handle.unref === 'function') {
                        task.ref = handle.ref.bind(handle);
                        task.unref = handle.unref.bind(handle);
                    }
                    if (typeof handle === 'number' || handle) {
                        return handle;
                    }
                    return task;
                }
                else {
                    // cause an error by calling it directly.
                    return delegate.apply(window, args);
                }
            }; });
        clearNative =
            patchMethod(window, cancelName, function (delegate) { return function (self, args) {
                var id = args[0];
                var task;
                if (typeof id === 'number') {
                    // non nodejs env.
                    task = tasksByHandleId[id];
                }
                else {
                    // nodejs env.
                    task = id && id[taskSymbol];
                    // other environments.
                    if (!task) {
                        task = id;
                    }
                }
                if (task && typeof task.type === 'string') {
                    if (task.state !== 'notScheduled' &&
                        (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {
                        if (typeof id === 'number') {
                            delete tasksByHandleId[id];
                        }
                        else if (id) {
                            id[taskSymbol] = null;
                        }
                        // Do not cancel already canceled functions
                        task.zone.cancelTask(task);
                    }
                }
                else {
                    // cause an error by calling it directly.
                    delegate.apply(window, args);
                }
            }; });
    }
    var set = 'set';
    var clear = 'clear';
    Zone.__load_patch('node_timers', function (global, Zone) {
        // Timers
        var globalUseTimeoutFromTimer = false;
        try {
            var timers = require('timers');
            var globalEqualTimersTimeout = global.setTimeout === timers.setTimeout;
            if (!globalEqualTimersTimeout && !isMix) {
                // 1. if isMix, then we are in mix environment such as Electron
                // we should only patch timers.setTimeout because global.setTimeout
                // have been patched
                // 2. if global.setTimeout not equal timers.setTimeout, check
                // whether global.setTimeout use timers.setTimeout or not
                var originSetTimeout_1 = timers.setTimeout;
                timers.setTimeout = function () {
                    globalUseTimeoutFromTimer = true;
                    return originSetTimeout_1.apply(this, arguments);
                };
                var detectTimeout = global.setTimeout(function () { }, 100);
                clearTimeout(detectTimeout);
                timers.setTimeout = originSetTimeout_1;
            }
            patchTimer(timers, set, clear, 'Timeout');
            patchTimer(timers, set, clear, 'Interval');
            patchTimer(timers, set, clear, 'Immediate');
        }
        catch (error) {
            // timers module not exists, for example, when we using nativeScript
            // timers is not available
        }
        if (isMix) {
            // if we are in mix environment, such as Electron,
            // the global.setTimeout has already been patched,
            // so we just patch timers.setTimeout
            return;
        }
        if (!globalUseTimeoutFromTimer) {
            // 1. global setTimeout equals timers setTimeout
            // 2. or global don't use timers setTimeout(maybe some other library patch setTimeout)
            // 3. or load timers module error happens, we should patch global setTimeout
            patchTimer(global, set, clear, 'Timeout');
            patchTimer(global, set, clear, 'Interval');
            patchTimer(global, set, clear, 'Immediate');
        }
        else {
            // global use timers setTimeout, but not equals
            // this happens when use nodejs v0.10.x, global setTimeout will
            // use a lazy load version of timers setTimeout
            // we should not double patch timer's setTimeout
            // so we only store the __symbol__ for consistency
            global[Zone.__symbol__('setTimeout')] = global.setTimeout;
            global[Zone.__symbol__('setInterval')] = global.setInterval;
            global[Zone.__symbol__('setImmediate')] = global.setImmediate;
        }
    });
    // patch process related methods
    Zone.__load_patch('nextTick', function () {
        // patch nextTick as microTask
        patchMicroTask(process, 'nextTick', function (self, args) {
            return {
                name: 'process.nextTick',
                args: args,
                cbIdx: (args.length > 0 && typeof args[0] === 'function') ? 0 : -1,
                target: process
            };
        });
    });
    Zone.__load_patch('handleUnhandledPromiseRejection', function (global, Zone, api) {
        Zone[api.symbol('unhandledPromiseRejectionHandler')] =
            findProcessPromiseRejectionHandler('unhandledRejection');
        Zone[api.symbol('rejectionHandledHandler')] =
            findProcessPromiseRejectionHandler('rejectionHandled');
        // handle unhandled promise rejection
        function findProcessPromiseRejectionHandler(evtName) {
            return function (e) {
                var eventTasks = findEventTasks(process, evtName);
                eventTasks.forEach(function (eventTask) {
                    // process has added unhandledrejection event listener
                    // trigger the event listener
                    if (evtName === 'unhandledRejection') {
                        eventTask.invoke(e.rejection, e.promise);
                    }
                    else if (evtName === 'rejectionHandled') {
                        eventTask.invoke(e.promise);
                    }
                });
            };
        }
    });
    // Crypto
    Zone.__load_patch('crypto', function () {
        var crypto;
        try {
            crypto = require('crypto');
        }
        catch (err) {
        }
        // use the generic patchMacroTask to patch crypto
        if (crypto) {
            var methodNames = ['randomBytes', 'pbkdf2'];
            methodNames.forEach(function (name) {
                patchMacroTask(crypto, name, function (self, args) {
                    return {
                        name: 'crypto.' + name,
                        args: args,
                        cbIdx: (args.length > 0 && typeof args[args.length - 1] === 'function') ?
                            args.length - 1 :
                            -1,
                        target: crypto
                    };
                });
            });
        }
    });
    Zone.__load_patch('console', function (global, Zone) {
        var consoleMethods = ['dir', 'log', 'info', 'error', 'warn', 'assert', 'debug', 'timeEnd', 'trace'];
        consoleMethods.forEach(function (m) {
            var originalMethod = console[Zone.__symbol__(m)] = console[m];
            if (originalMethod) {
                console[m] = function () {
                    var args = ArraySlice.call(arguments);
                    if (Zone.current === Zone.root) {
                        return originalMethod.apply(this, args);
                    }
                    else {
                        return Zone.root.run(originalMethod, this, args);
                    }
                };
            }
        });
    });
}));