/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(factory());
}(this, (function () { 'use strict';

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
var Zone$1 = (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');
    var checkDuplicate = global[('__zone_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: true,
            configurable: true
        });
        Object.defineProperty(Zone, "current", {
            get: function () {
                return _currentZoneFrame.zone;
            },
            enumerable: true,
            configurable: true
        });
        Object.defineProperty(Zone, "currentTask", {
            get: function () {
                return _currentTask;
            },
            enumerable: true,
            configurable: true
        });
        Zone.__load_patch = function (name, fn) {
            if (patches.hasOwnProperty(name)) {
                if (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: true,
            configurable: true
        });
        Object.defineProperty(Zone.prototype, "name", {
            get: function () {
                return this._name;
            },
            enumerable: true,
            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 " + this.name + " which is descendants of the original zone " + 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 + ')');
            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);
            }
        };
        Zone.__symbol__ = __symbol__;
        return Zone;
    }());
    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.zone);
            this._interceptZS =
                zoneSpec && (zoneSpec.onIntercept ? zoneSpec : parentDelegate._interceptZS);
            this._interceptDlgt =
                zoneSpec && (zoneSpec.onIntercept ? parentDelegate : parentDelegate._interceptDlgt);
            this._interceptCurrZone =
                zoneSpec && (zoneSpec.onIntercept ? this.zone : parentDelegate.zone);
            this._invokeZS = zoneSpec && (zoneSpec.onInvoke ? zoneSpec : parentDelegate._invokeZS);
            this._invokeDlgt =
                zoneSpec && (zoneSpec.onInvoke ? parentDelegate : parentDelegate._invokeDlgt);
            this._invokeCurrZone = zoneSpec && (zoneSpec.onInvoke ? this.zone : parentDelegate.zone);
            this._handleErrorZS =
                zoneSpec && (zoneSpec.onHandleError ? zoneSpec : parentDelegate._handleErrorZS);
            this._handleErrorDlgt =
                zoneSpec && (zoneSpec.onHandleError ? parentDelegate : parentDelegate._handleErrorDlgt);
            this._handleErrorCurrZone =
                zoneSpec && (zoneSpec.onHandleError ? this.zone : parentDelegate.zone);
            this._scheduleTaskZS =
                zoneSpec && (zoneSpec.onScheduleTask ? zoneSpec : parentDelegate._scheduleTaskZS);
            this._scheduleTaskDlgt = zoneSpec &&
                (zoneSpec.onScheduleTask ? parentDelegate : parentDelegate._scheduleTaskDlgt);
            this._scheduleTaskCurrZone =
                zoneSpec && (zoneSpec.onScheduleTask ? this.zone : parentDelegate.zone);
            this._invokeTaskZS =
                zoneSpec && (zoneSpec.onInvokeTask ? zoneSpec : parentDelegate._invokeTaskZS);
            this._invokeTaskDlgt =
                zoneSpec && (zoneSpec.onInvokeTask ? parentDelegate : parentDelegate._invokeTaskDlgt);
            this._invokeTaskCurrZone =
                zoneSpec && (zoneSpec.onInvokeTask ? this.zone : parentDelegate.zone);
            this._cancelTaskZS =
                zoneSpec && (zoneSpec.onCancelTask ? zoneSpec : parentDelegate._cancelTaskZS);
            this._cancelTaskDlgt =
                zoneSpec && (zoneSpec.onCancelTask ? parentDelegate : parentDelegate._cancelTaskDlgt);
            this._cancelTaskCurrZone =
                zoneSpec && (zoneSpec.onCancelTask ? this.zone : parentDelegate.zone);
            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);
                }
                returnTask = this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);
                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);
            }
        };
        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) {
            this._zone = null;
            this.runCount = 0;
            this._zoneDelegates = null;
            this._state = 'notScheduled';
            this.type = type;
            this.source = source;
            this.data = options;
            this.scheduleFn = scheduleFn;
            this.cancelFn = cancelFn;
            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: true,
            configurable: true
        });
        Object.defineProperty(ZoneTask.prototype, "state", {
            get: function () {
                return this._state;
            },
            enumerable: true,
            configurable: true
        });
        ZoneTask.prototype.cancelScheduleRequest = function () {
            this._transitionTo(notScheduled, scheduling);
        };
        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(this.type + " '" + this.source + "': can not transition to '" + toState + "', expecting state '" + fromState1 + "'" + (fromState2 ? ' or \'' + fromState2 + '\'' : '') + ", was '" + 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 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.
            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, drainMicroTaskQueue);
            }
            else {
                global[symbolSetTimeout](drainMicroTaskQueue, 0);
            }
        }
        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; },
        setNativePromise: function (NativePromise) {
            // sometimes NativePromise.resolve static function
            // is not ready yet, (such as core-js/es6.promise)
            // so we need to check here.
            if (NativePromise && typeof NativePromise.resolve === 'function') {
                nativeMicroTaskQueuePromise = NativePromise.resolve(0);
            }
        },
        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; }
    };
    var _currentZoneFrame = { parent: null, zone: new Zone(null, null) };
    var _currentTask = null;
    var _numberOfNestedTaskFrames = 0;
    function noop() { }
    function __symbol__(name) {
        return '__zone_symbol__' + name;
    }
    performanceMeasure('Zone', 'Zone');
    return global['Zone'] = Zone;
})(typeof window !== 'undefined' && window || typeof self !== 'undefined' && self || global);

var __values = (undefined && undefined.__values) || function (o) {
    var m = typeof Symbol === "function" && o[Symbol.iterator], i = 0;
    if (m) return m.call(o);
    return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
};
/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('ZoneAwarePromise', function (global, Zone, api) {
    var ObjectGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
    var ObjectDefineProperty = Object.defineProperty;
    function readableObjectToString(obj) {
        if (obj && obj.toString === Object.prototype.toString) {
            var className = obj.constructor && obj.constructor.name;
            return (className ? className : '') + ': ' + JSON.stringify(obj);
        }
        return obj ? obj.toString() : Object.prototype.toString.call(obj);
    }
    var __symbol__ = api.symbol;
    var _uncaughtPromiseErrors = [];
    var symbolPromise = __symbol__('Promise');
    var symbolThen = __symbol__('then');
    var creationTrace = '__creationTrace__';
    api.onUnhandledError = function (e) {
        if (api.showUncaughtError()) {
            var rejection = e && e.rejection;
            if (rejection) {
                console.error('Unhandled Promise rejection:', rejection instanceof Error ? rejection.message : rejection, '; Zone:', e.zone.name, '; Task:', e.task && e.task.source, '; Value:', rejection, rejection instanceof Error ? rejection.stack : undefined);
            }
            else {
                console.error(e);
            }
        }
    };
    api.microtaskDrainDone = function () {
        while (_uncaughtPromiseErrors.length) {
            var _loop_1 = function () {
                var uncaughtPromiseError = _uncaughtPromiseErrors.shift();
                try {
                    uncaughtPromiseError.zone.runGuarded(function () {
                        throw uncaughtPromiseError;
                    });
                }
                catch (error) {
                    handleUnhandledRejection(error);
                }
            };
            while (_uncaughtPromiseErrors.length) {
                _loop_1();
            }
        }
    };
    var UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL = __symbol__('unhandledPromiseRejectionHandler');
    function handleUnhandledRejection(e) {
        api.onUnhandledError(e);
        try {
            var handler = Zone[UNHANDLED_PROMISE_REJECTION_HANDLER_SYMBOL];
            if (handler && typeof handler === 'function') {
                handler.call(this, e);
            }
        }
        catch (err) {
        }
    }
    function isThenable(value) {
        return value && value.then;
    }
    function forwardResolution(value) {
        return value;
    }
    function forwardRejection(rejection) {
        return ZoneAwarePromise.reject(rejection);
    }
    var symbolState = __symbol__('state');
    var symbolValue = __symbol__('value');
    var symbolFinally = __symbol__('finally');
    var symbolParentPromiseValue = __symbol__('parentPromiseValue');
    var symbolParentPromiseState = __symbol__('parentPromiseState');
    var source = 'Promise.then';
    var UNRESOLVED = null;
    var RESOLVED = true;
    var REJECTED = false;
    var REJECTED_NO_CATCH = 0;
    function makeResolver(promise, state) {
        return function (v) {
            try {
                resolvePromise(promise, state, v);
            }
            catch (err) {
                resolvePromise(promise, false, err);
            }
            // Do not return value or you will break the Promise spec.
        };
    }
    var once = function () {
        var wasCalled = false;
        return function wrapper(wrappedFunction) {
            return function () {
                if (wasCalled) {
                    return;
                }
                wasCalled = true;
                wrappedFunction.apply(null, arguments);
            };
        };
    };
    var TYPE_ERROR = 'Promise resolved with itself';
    var CURRENT_TASK_TRACE_SYMBOL = __symbol__('currentTaskTrace');
    // Promise Resolution
    function resolvePromise(promise, state, value) {
        var onceWrapper = once();
        if (promise === value) {
            throw new TypeError(TYPE_ERROR);
        }
        if (promise[symbolState] === UNRESOLVED) {
            // should only get value.then once based on promise spec.
            var then = null;
            try {
                if (typeof value === 'object' || typeof value === 'function') {
                    then = value && value.then;
                }
            }
            catch (err) {
                onceWrapper(function () {
                    resolvePromise(promise, false, err);
                })();
                return promise;
            }
            // if (value instanceof ZoneAwarePromise) {
            if (state !== REJECTED && value instanceof ZoneAwarePromise &&
                value.hasOwnProperty(symbolState) && value.hasOwnProperty(symbolValue) &&
                value[symbolState] !== UNRESOLVED) {
                clearRejectedNoCatch(value);
                resolvePromise(promise, value[symbolState], value[symbolValue]);
            }
            else if (state !== REJECTED && typeof then === 'function') {
                try {
                    then.call(value, onceWrapper(makeResolver(promise, state)), onceWrapper(makeResolver(promise, false)));
                }
                catch (err) {
                    onceWrapper(function () {
                        resolvePromise(promise, false, err);
                    })();
                }
            }
            else {
                promise[symbolState] = state;
                var queue = promise[symbolValue];
                promise[symbolValue] = value;
                if (promise[symbolFinally] === symbolFinally) {
                    // the promise is generated by Promise.prototype.finally
                    if (state === RESOLVED) {
                        // the state is resolved, should ignore the value
                        // and use parent promise value
                        promise[symbolState] = promise[symbolParentPromiseState];
                        promise[symbolValue] = promise[symbolParentPromiseValue];
                    }
                }
                // record task information in value when error occurs, so we can
                // do some additional work such as render longStackTrace
                if (state === REJECTED && value instanceof Error) {
                    // check if longStackTraceZone is here
                    var trace = Zone.currentTask && Zone.currentTask.data &&
                        Zone.currentTask.data[creationTrace];
                    if (trace) {
                        // only keep the long stack trace into error when in longStackTraceZone
                        ObjectDefineProperty(value, CURRENT_TASK_TRACE_SYMBOL, { configurable: true, enumerable: false, writable: true, value: trace });
                    }
                }
                for (var i = 0; i < queue.length;) {
                    scheduleResolveOrReject(promise, queue[i++], queue[i++], queue[i++], queue[i++]);
                }
                if (queue.length == 0 && state == REJECTED) {
                    promise[symbolState] = REJECTED_NO_CATCH;
                    try {
                        // try to print more readable error log
                        throw new Error('Uncaught (in promise): ' + readableObjectToString(value) +
                            (value && value.stack ? '\n' + value.stack : ''));
                    }
                    catch (err) {
                        var error_1 = err;
                        error_1.rejection = value;
                        error_1.promise = promise;
                        error_1.zone = Zone.current;
                        error_1.task = Zone.currentTask;
                        _uncaughtPromiseErrors.push(error_1);
                        api.scheduleMicroTask(); // to make sure that it is running
                    }
                }
            }
        }
        // Resolving an already resolved promise is a noop.
        return promise;
    }
    var REJECTION_HANDLED_HANDLER = __symbol__('rejectionHandledHandler');
    function clearRejectedNoCatch(promise) {
        if (promise[symbolState] === REJECTED_NO_CATCH) {
            // if the promise is rejected no catch status
            // and queue.length > 0, means there is a error handler
            // here to handle the rejected promise, we should trigger
            // windows.rejectionhandled eventHandler or nodejs rejectionHandled
            // eventHandler
            try {
                var handler = Zone[REJECTION_HANDLED_HANDLER];
                if (handler && typeof handler === 'function') {
                    handler.call(this, { rejection: promise[symbolValue], promise: promise });
                }
            }
            catch (err) {
            }
            promise[symbolState] = REJECTED;
            for (var i = 0; i < _uncaughtPromiseErrors.length; i++) {
                if (promise === _uncaughtPromiseErrors[i].promise) {
                    _uncaughtPromiseErrors.splice(i, 1);
                }
            }
        }
    }
    function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {
        clearRejectedNoCatch(promise);
        var promiseState = promise[symbolState];
        var delegate = promiseState ?
            (typeof onFulfilled === 'function') ? onFulfilled : forwardResolution :
            (typeof onRejected === 'function') ? onRejected : forwardRejection;
        zone.scheduleMicroTask(source, function () {
            try {
                var parentPromiseValue = promise[symbolValue];
                var isFinallyPromise = chainPromise && symbolFinally === chainPromise[symbolFinally];
                if (isFinallyPromise) {
                    // if the promise is generated from finally call, keep parent promise's state and value
                    chainPromise[symbolParentPromiseValue] = parentPromiseValue;
                    chainPromise[symbolParentPromiseState] = promiseState;
                }
                // should not pass value to finally callback
                var value = zone.run(delegate, undefined, isFinallyPromise && delegate !== forwardRejection && delegate !== forwardResolution ?
                    [] :
                    [parentPromiseValue]);
                resolvePromise(chainPromise, true, value);
            }
            catch (error) {
                // if error occurs, should always return this error
                resolvePromise(chainPromise, false, error);
            }
        }, chainPromise);
    }
    var ZONE_AWARE_PROMISE_TO_STRING = 'function ZoneAwarePromise() { [native code] }';
    var ZoneAwarePromise = /** @class */ (function () {
        function ZoneAwarePromise(executor) {
            var promise = this;
            if (!(promise instanceof ZoneAwarePromise)) {
                throw new Error('Must be an instanceof Promise.');
            }
            promise[symbolState] = UNRESOLVED;
            promise[symbolValue] = []; // queue;
            try {
                executor && executor(makeResolver(promise, RESOLVED), makeResolver(promise, REJECTED));
            }
            catch (error) {
                resolvePromise(promise, false, error);
            }
        }
        ZoneAwarePromise.toString = function () {
            return ZONE_AWARE_PROMISE_TO_STRING;
        };
        ZoneAwarePromise.resolve = function (value) {
            return resolvePromise(new this(null), RESOLVED, value);
        };
        ZoneAwarePromise.reject = function (error) {
            return resolvePromise(new this(null), REJECTED, error);
        };
        ZoneAwarePromise.race = function (values) {
            var e_1, _a;
            var resolve;
            var reject;
            var promise = new this(function (res, rej) {
                resolve = res;
                reject = rej;
            });
            function onResolve(value) {
                resolve(value);
            }
            function onReject(error) {
                reject(error);
            }
            try {
                for (var values_1 = __values(values), values_1_1 = values_1.next(); !values_1_1.done; values_1_1 = values_1.next()) {
                    var value = values_1_1.value;
                    if (!isThenable(value)) {
                        value = this.resolve(value);
                    }
                    value.then(onResolve, onReject);
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (values_1_1 && !values_1_1.done && (_a = values_1.return)) _a.call(values_1);
                }
                finally { if (e_1) throw e_1.error; }
            }
            return promise;
        };
        ZoneAwarePromise.all = function (values) {
            var e_2, _a;
            var resolve;
            var reject;
            var promise = new this(function (res, rej) {
                resolve = res;
                reject = rej;
            });
            // Start at 2 to prevent prematurely resolving if .then is called immediately.
            var unresolvedCount = 2;
            var valueIndex = 0;
            var resolvedValues = [];
            var _loop_2 = function (value) {
                if (!isThenable(value)) {
                    value = this_1.resolve(value);
                }
                var curValueIndex = valueIndex;
                value.then(function (value) {
                    resolvedValues[curValueIndex] = value;
                    unresolvedCount--;
                    if (unresolvedCount === 0) {
                        resolve(resolvedValues);
                    }
                }, reject);
                unresolvedCount++;
                valueIndex++;
            };
            var this_1 = this;
            try {
                for (var values_2 = __values(values), values_2_1 = values_2.next(); !values_2_1.done; values_2_1 = values_2.next()) {
                    var value = values_2_1.value;
                    _loop_2(value);
                }
            }
            catch (e_2_1) { e_2 = { error: e_2_1 }; }
            finally {
                try {
                    if (values_2_1 && !values_2_1.done && (_a = values_2.return)) _a.call(values_2);
                }
                finally { if (e_2) throw e_2.error; }
            }
            // Make the unresolvedCount zero-based again.
            unresolvedCount -= 2;
            if (unresolvedCount === 0) {
                resolve(resolvedValues);
            }
            return promise;
        };
        Object.defineProperty(ZoneAwarePromise.prototype, Symbol.toStringTag, {
            get: function () {
                return 'Promise';
            },
            enumerable: true,
            configurable: true
        });
        ZoneAwarePromise.prototype.then = function (onFulfilled, onRejected) {
            var chainPromise = new this.constructor(null);
            var zone = Zone.current;
            if (this[symbolState] == UNRESOLVED) {
                this[symbolValue].push(zone, chainPromise, onFulfilled, onRejected);
            }
            else {
                scheduleResolveOrReject(this, zone, chainPromise, onFulfilled, onRejected);
            }
            return chainPromise;
        };
        ZoneAwarePromise.prototype.catch = function (onRejected) {
            return this.then(null, onRejected);
        };
        ZoneAwarePromise.prototype.finally = function (onFinally) {
            var chainPromise = new this.constructor(null);
            chainPromise[symbolFinally] = symbolFinally;
            var zone = Zone.current;
            if (this[symbolState] == UNRESOLVED) {
                this[symbolValue].push(zone, chainPromise, onFinally, onFinally);
            }
            else {
                scheduleResolveOrReject(this, zone, chainPromise, onFinally, onFinally);
            }
            return chainPromise;
        };
        return ZoneAwarePromise;
    }());
    // Protect against aggressive optimizers dropping seemingly unused properties.
    // E.g. Closure Compiler in advanced mode.
    ZoneAwarePromise['resolve'] = ZoneAwarePromise.resolve;
    ZoneAwarePromise['reject'] = ZoneAwarePromise.reject;
    ZoneAwarePromise['race'] = ZoneAwarePromise.race;
    ZoneAwarePromise['all'] = ZoneAwarePromise.all;
    var NativePromise = global[symbolPromise] = global['Promise'];
    var ZONE_AWARE_PROMISE = Zone.__symbol__('ZoneAwarePromise');
    var desc = ObjectGetOwnPropertyDescriptor(global, 'Promise');
    if (!desc || desc.configurable) {
        desc && delete desc.writable;
        desc && delete desc.value;
        if (!desc) {
            desc = { configurable: true, enumerable: true };
        }
        desc.get = function () {
            // if we already set ZoneAwarePromise, use patched one
            // otherwise return native one.
            return global[ZONE_AWARE_PROMISE] ? global[ZONE_AWARE_PROMISE] : global[symbolPromise];
        };
        desc.set = function (NewNativePromise) {
            if (NewNativePromise === ZoneAwarePromise) {
                // if the NewNativePromise is ZoneAwarePromise
                // save to global
                global[ZONE_AWARE_PROMISE] = NewNativePromise;
            }
            else {
                // if the NewNativePromise is not ZoneAwarePromise
                // for example: after load zone.js, some library just
                // set es6-promise to global, if we set it to global
                // directly, assertZonePatched will fail and angular
                // will not loaded, so we just set the NewNativePromise
                // to global[symbolPromise], so the result is just like
                // we load ES6 Promise before zone.js
                global[symbolPromise] = NewNativePromise;
                if (!NewNativePromise.prototype[symbolThen]) {
                    patchThen(NewNativePromise);
                }
                api.setNativePromise(NewNativePromise);
            }
        };
        ObjectDefineProperty(global, 'Promise', desc);
    }
    global['Promise'] = ZoneAwarePromise;
    var symbolThenPatched = __symbol__('thenPatched');
    function patchThen(Ctor) {
        var proto = Ctor.prototype;
        var prop = ObjectGetOwnPropertyDescriptor(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;
        Ctor.prototype.then = function (onResolve, onReject) {
            var _this = this;
            var wrapped = new ZoneAwarePromise(function (resolve, reject) {
                originalThen.call(_this, resolve, reject);
            });
            return wrapped.then(onResolve, onReject);
        };
        Ctor[symbolThenPatched] = true;
    }
    api.patchThen = patchThen;
    function zoneify(fn) {
        return function () {
            var resultPromise = fn.apply(this, arguments);
            if (resultPromise instanceof ZoneAwarePromise) {
                return resultPromise;
            }
            var ctor = resultPromise.constructor;
            if (!ctor[symbolThenPatched]) {
                patchThen(ctor);
            }
            return resultPromise;
        };
    }
    if (NativePromise) {
        patchThen(NativePromise);
        var fetch_1 = global['fetch'];
        if (typeof fetch_1 == 'function') {
            global[api.symbol('fetch')] = fetch_1;
            global['fetch'] = zoneify(fetch_1);
        }
    }
    // This is not part of public API, but it is useful for tests, so we expose it.
    Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;
    return ZoneAwarePromise;
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * Suppress closure compiler errors about unknown 'Zone' variable
 * @fileoverview
 * @suppress {undefinedVars,globalThis,missingRequire}
 */
// 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;
/** Object.create */

/** 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 */
var ZONE_SYMBOL_ADD_EVENT_LISTENER = Zone.__symbol__(ADD_EVENT_LISTENER_STR);
/** zoneSymbol removeEventListener */
var ZONE_SYMBOL_REMOVE_EVENT_LISTENER = Zone.__symbol__(REMOVE_EVENT_LISTENER_STR);
/** true string const */
var TRUE_STR = 'true';
/** false string const */
var FALSE_STR = 'false';
/** __zone_symbol__ 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';
var NULL_ON_PROP_VALUE = [null];
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 = {};
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[event.type];
    if (!eventNameSymbol) {
        eventNameSymbol = zoneSymbolEventNames[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 signiture
        // 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;
    // substr(2) cuz 'onclick' -> 'click', etc
    var eventName = prop.substr(2);
    var eventNameSymbol = zoneSymbolEventNames[eventName];
    if (!eventNameSymbol) {
        eventNameSymbol = zoneSymbolEventNames[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 (previousValue) {
            target.removeEventListener(eventName, wrapFn);
        }
        // issue #978, when onload handler was added before loading zone.js
        // we should remove it with originalDescSet
        if (originalDescSet) {
            originalDescSet.apply(target, NULL_ON_PROP_VALUE);
        }
        if (typeof newValue === 'function') {
            target[eventNameSymbol] = newValue;
            target.addEventListener(eventName, wrapFn, false);
        }
        else {
            target[eventNameSymbol] = null;
        }
    };
    // 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 && 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.substr(0, 2) == 'on') {
                onProperties.push(prop);
            }
        }
        for (var j = 0; j < onProperties.length; j++) {
            patchProperty(obj, onProperties[j], prototype);
        }
    }
}
var originalInstanceKey = zoneSymbol('originalInstance');
// wrap some native API on `window`

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])) {
        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;
}

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
// 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 (this instanceof Promise) {
            return PROMISE_OBJECT_TO_STRING;
        }
        return originalObjectToString.call(this);
    };
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('node_util', function (global, Zone, api) {
    api.patchOnProperties = patchOnProperties;
    api.patchMethod = patchMethod;
    api.bindArguments = bindArguments;
    api.patchMacroTask = patchMacroTask;
    setShouldCopySymbolProperties(true);
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * @fileoverview
 * @suppress {missingRequire}
 */
var passiveSupported = false;
if (typeof window !== 'undefined') {
    try {
        var options = Object.defineProperty({}, 'passive', {
            get: function () {
                passiveSupported = true;
            }
        });
        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$1 = {};
var globalSources = {};
var EVENT_NAME_SYMBOL_REGX = /^__zone_symbol__(\w+)(true|false)$/;
var IMMEDIATE_PROPAGATION_SYMBOL = ('__zone_symbol__propagationStopped');
function patchEventTarget(_global, 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
        task.invoke(task, target, [event]);
        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);
        }
    };
    // global shared zoneAwareCallback to handle all event callback with capture = false
    var globalZoneAwareCallback = 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;
        }
        // event.target is needed for Samsung TV and SourceBuffer
        // || global is needed https://github.com/angular/zone.js/issues/190
        var target = this || event.target || _global;
        var tasks = target[zoneSymbolEventNames$1[event.type][FALSE_STR]];
        if (tasks) {
            // 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) {
                invokeTask(tasks[0], target, event);
            }
            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;
                    }
                    invokeTask(copyTasks[i], target, event);
                }
            }
        }
    };
    // global shared zoneAwareCallback to handle all event callback with capture = true
    var globalZoneAwareCaptureCallback = 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;
        }
        // event.target is needed for Samsung TV and SourceBuffer
        // || global is needed https://github.com/angular/zone.js/issues/190
        var target = this || event.target || _global;
        var tasks = target[zoneSymbolEventNames$1[event.type][TRUE_STR]];
        if (tasks) {
            // 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) {
                invokeTask(tasks[0], target, event);
            }
            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;
                    }
                    invokeTask(copyTasks[i], target, event);
                }
            }
        }
    };
    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];
        }
        function checkIsPassive(task) {
            if (!passiveSupported && typeof taskData.options !== 'boolean' &&
                typeof taskData.options !== 'undefined' && taskData.options !== null) {
                // options is a non-null non-undefined object
                // passive is not supported
                // don't pass options as object
                // just pass capture as a boolean
                task.options = !!taskData.options.capture;
                taskData.options = task.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;
            }
            checkIsPassive(task);
            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$1[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) {
            checkIsPassive(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 blackListedEvents = Zone[Zone.__symbol__('BLACK_LISTED_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];
                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 options = arguments[2];
                if (blackListedEvents) {
                    // check black list
                    for (var i = 0; i < blackListedEvents.length; i++) {
                        if (eventName === blackListedEvents[i]) {
                            return nativeListener.apply(this, arguments);
                        }
                    }
                }
                var capture;
                var once = false;
                if (options === undefined) {
                    capture = false;
                }
                else if (options === true) {
                    capture = true;
                }
                else if (options === false) {
                    capture = false;
                }
                else {
                    capture = options ? !!options.capture : false;
                    once = options ? !!options.once : false;
                }
                var zone = Zone.current;
                var symbolEventNames = zoneSymbolEventNames$1[eventName];
                var symbolEventName;
                if (!symbolEventNames) {
                    // the code is duplicate, but I just want to get some better performance
                    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$1[eventName] = {};
                    zoneSymbolEventNames$1[eventName][FALSE_STR] = symbol;
                    zoneSymbolEventNames$1[eventName][TRUE_STR] = symbolCapture;
                    symbolEventName = capture ? symbolCapture : symbol;
                }
                else {
                    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];
            var options = arguments[2];
            var capture;
            if (options === undefined) {
                capture = false;
            }
            else if (options === true) {
                capture = true;
            }
            else if (options === false) {
                capture = false;
            }
            else {
                capture = options ? !!options.capture : false;
            }
            var delegate = arguments[1];
            if (!delegate) {
                return nativeRemoveEventListener.apply(this, arguments);
            }
            if (validateHandler &&
                !validateHandler(nativeRemoveEventListener, delegate, target, arguments)) {
                return;
            }
            var symbolEventNames = zoneSymbolEventNames$1[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;
                        }
                        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];
            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 {
                var symbolEventNames = zoneSymbolEventNames$1[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) {
    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;
}

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
Zone.__load_patch('EventEmitter', function (global) {
    // 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 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, [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];
        }
    }
    // EventEmitter
    var events;
    try {
        events = require('events');
    }
    catch (err) {
    }
    if (events && events.EventEmitter) {
        patchEventEmitterMethods(events.EventEmitter.prototype);
    }
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
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
                };
            });
        });
    }
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
/**
 * @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;
        function timer() {
            try {
                task.invoke.apply(this, arguments);
            }
            finally {
                // issue-934, task will be cancelled
                // even it is a periodic task such as
                // setInterval
                if (!(task.data && task.data.isPeriodic)) {
                    if (typeof data.handleId === 'number') {
                        // in non-nodejs env, we remove timerId
                        // from local cache
                        delete tasksByHandleId[data.handleId];
                    }
                    else if (data.handleId) {
                        // Node returns complex objects as handleIds
                        // we remove task reference from timer object
                        data.handleId[taskSymbol] = null;
                    }
                }
            }
        }
        data.args[0] = timer;
        data.handleId = setNative.apply(window, data.args);
        return task;
    }
    function clearTask(task) {
        return clearNative(task.data.handleId);
    }
    setNative =
        patchMethod(window, setName, function (delegate) { return function (self, args) {
            if (typeof args[0] === 'function') {
                var options = {
                    isPeriodic: nameSuffix === 'Interval',
                    delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 :
                        undefined,
                    args: args
                };
                var task = scheduleMacroTaskWithCurrentZone(setName, args[0], options, 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);
            }
        }; });
}

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
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);
                }
            };
        }
    });
});

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

})));
