/**
* @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) {
    if (global['Zone']) {
        throw new Error('Zone already loaded.');
    }
    var NO_ZONE = { name: 'NO ZONE' };
    var notScheduled = 'notScheduled', scheduling = 'scheduling', scheduled = 'scheduled', running = 'running', canceling = 'canceling';
    var microTask = 'microTask', macroTask = 'macroTask', eventTask = 'eventTask';
    var Zone = (function () {
        function Zone(parent, zoneSpec) {
            this._properties = null;
            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 !== 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
        });
        
        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) {
            if (applyThis === void 0) { applyThis = undefined; }
            if (applyArgs === void 0) { applyArgs = null; }
            if (source === void 0) { source = null; }
            _currentZoneFrame = new ZoneFrame(_currentZoneFrame, 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; }
            if (applyArgs === void 0) { applyArgs = null; }
            if (source === void 0) { source = null; }
            _currentZoneFrame = new ZoneFrame(_currentZoneFrame, 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 + ')');
            var reEntryGuard = task.state != running;
            reEntryGuard && task._transitionTo(running, scheduled);
            task.runCount++;
            var previousTask = _currentTask;
            _currentTask = task;
            _currentZoneFrame = new ZoneFrame(_currentZoneFrame, this);
            try {
                if (task.type == macroTask && task.data && !task.data.isPeriodic) {
                    task.cancelFn = null;
                }
                try {
                    return this._zoneDelegate.invokeTask(this, task, applyThis, applyArgs);
                }
                catch (error) {
                    if (this._zoneDelegate.handleError(this, error)) {
                        throw error;
                    }
                }
            }
            finally {
                if (task.type == eventTask || (task.data && task.data.isPeriodic)) {
                    reEntryGuard && task._transitionTo(scheduled, running, notScheduled);
                }
                else {
                    task.runCount = 0;
                    this._updateTaskCount(task, -1);
                    reEntryGuard && task._transitionTo(notScheduled, running, notScheduled);
                }
                _currentZoneFrame = _currentZoneFrame.parent;
                _currentTask = previousTask;
            }
        };
        Zone.prototype.scheduleTask = function (task) {
            task._transitionTo(scheduling, notScheduled);
            var zoneDelegates = [];
            task._zoneDelegates = zoneDelegates;
            task.zone = this;
            task = this._zoneDelegate.scheduleTask(this, task);
            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, null));
        };
        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) {
            task._transitionTo(canceling, scheduled, running);
            this._zoneDelegate.cancelTask(this, task);
            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 = (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 {
                value = task.cancelFn(task);
            }
            return value;
        };
        ZoneDelegate.prototype.hasTask = function (targetZone, isEmpty) {
            return this._hasTaskZS &&
                this._hasTaskZS.onHasTask(this._hasTaskDlgt, this._hasTaskCurrZone, targetZone, isEmpty);
        };
        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
                };
                // TODO(misko): what should happen if it throws?
                this.hasTask(this.zone, isEmpty);
            }
        };
        return ZoneDelegate;
    }());
    var ZoneTask = (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;
            this.invoke = function () {
                _numberOfNestedTaskFrames++;
                try {
                    self.runCount++;
                    return self.zone.runTask(self, this, arguments);
                }
                finally {
                    if (_numberOfNestedTaskFrames == 1) {
                        drainMicroTaskQueue();
                    }
                    _numberOfNestedTaskFrames--;
                }
            };
        }
        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 {
                debugger;
                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;
            }
            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,
                data: this.data,
                zone: this.zone.name,
                invoke: this.invoke,
                scheduleFn: this.scheduleFn,
                cancelFn: this.cancelFn,
                runCount: this.runCount,
                callback: this.callback
            };
        };
        return ZoneTask;
    }());
    var ZoneFrame = (function () {
        function ZoneFrame(parent, zone) {
            this.parent = parent;
            this.zone = zone;
        }
        return ZoneFrame;
    }());
    function __symbol__(name) {
        return '__zone_symbol__' + name;
    }
    
    var symbolSetTimeout = __symbol__('setTimeout');
    var symbolPromise = __symbol__('Promise');
    var symbolThen = __symbol__('then');
    var _currentZoneFrame = new ZoneFrame(null, new Zone(null, null));
    var _currentTask = null;
    var _microTaskQueue = [];
    var _isDrainingMicrotaskQueue = false;
    var _uncaughtPromiseErrors = [];
    var _numberOfNestedTaskFrames = 0;
    function scheduleQueueDrain() {
        // 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 (global[symbolPromise]) {
                global[symbolPromise].resolve(0)[symbolThen](drainMicroTaskQueue);
            }
            else {
                global[symbolSetTimeout](drainMicroTaskQueue, 0);
            }
        }
    }
    function scheduleMicroTask(task) {
        scheduleQueueDrain();
        _microTaskQueue.push(task);
    }
    function consoleError(e) {
        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);
        }
        console.error(e);
    }
    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) {
                        consoleError(error);
                    }
                }
            }
            while (_uncaughtPromiseErrors.length) {
                var _loop_1 = function() {
                    var uncaughtPromiseError = _uncaughtPromiseErrors.shift();
                    try {
                        uncaughtPromiseError.zone.runGuarded(function () {
                            throw uncaughtPromiseError;
                        });
                    }
                    catch (error) {
                        consoleError(error);
                    }
                };
                while (_uncaughtPromiseErrors.length) {
                    _loop_1();
                }
            }
            _isDrainingMicrotaskQueue = false;
        }
    }
    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 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);
            };
        };
    };
    // Promise Resolution
    function resolvePromise(promise, state, value) {
        var onceWrapper = once();
        if (promise === value) {
            throw new TypeError('Promise resolved with itself');
        }
        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.apply(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;
                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 {
                        throw new Error('Uncaught (in promise): ' + 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);
                        scheduleQueueDrain();
                    }
                }
            }
        }
        // Resolving an already resolved promise is a noop.
        return promise;
    }
    function clearRejectedNoCatch(promise) {
        if (promise[symbolState] === REJECTED_NO_CATCH) {
            promise[symbolState] = REJECTED;
            for (var i = 0; i < _uncaughtPromiseErrors.length; i++) {
                if (promise === _uncaughtPromiseErrors[i].promise) {
                    _uncaughtPromiseErrors.splice(i, 1);
                    break;
                }
            }
        }
    }
    function scheduleResolveOrReject(promise, zone, chainPromise, onFulfilled, onRejected) {
        clearRejectedNoCatch(promise);
        var delegate = promise[symbolState] ?
            (typeof onFulfilled === 'function') ? onFulfilled : forwardResolution :
            (typeof onRejected === 'function') ? onRejected : forwardRejection;
        zone.scheduleMicroTask(source, function () {
            try {
                resolvePromise(chainPromise, true, zone.run(delegate, undefined, [promise[symbolValue]]));
            }
            catch (error) {
                resolvePromise(chainPromise, false, error);
            }
        });
    }
    var ZoneAwarePromise = (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 'function ZoneAwarePromise() { [native code] }';
        };
        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 resolve;
            var reject;
            var promise = new this(function (res, rej) {
                _a = [res, rej], resolve = _a[0], reject = _a[1];
                var _a;
            });
            function onResolve(value) {
                promise && (promise = null || resolve(value));
            }
            function onReject(error) {
                promise && (promise = null || reject(error));
            }
            for (var _i = 0, values_1 = values; _i < values_1.length; _i++) {
                var value = values_1[_i];
                if (!isThenable(value)) {
                    value = this.resolve(value);
                }
                value.then(onResolve, onReject);
            }
            return promise;
        };
        ZoneAwarePromise.all = function (values) {
            var resolve;
            var reject;
            var promise = new this(function (res, rej) {
                resolve = res;
                reject = rej;
            });
            var count = 0;
            var resolvedValues = [];
            for (var _i = 0, values_2 = values; _i < values_2.length; _i++) {
                var value = values_2[_i];
                if (!isThenable(value)) {
                    value = this.resolve(value);
                }
                value.then((function (index) { return function (value) {
                    resolvedValues[index] = value;
                    count--;
                    if (!count) {
                        resolve(resolvedValues);
                    }
                }; })(count), reject);
                count++;
            }
            if (!count)
                resolve(resolvedValues);
            return promise;
        };
        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);
        };
        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'];
    global['Promise'] = ZoneAwarePromise;
    var symbolThenPatched = __symbol__('thenPatched');
    function patchThen(Ctor) {
        var proto = Ctor.prototype;
        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;
    }
    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 = global['fetch'];
        if (typeof fetch == 'function') {
            global['fetch'] = zoneify(fetch);
        }
    }
    // This is not part of public API, but it is usefull for tests, so we expose it.
    Promise[Zone.__symbol__('uncaughtPromiseErrors')] = _uncaughtPromiseErrors;
    /*
     * This code patches Error so that:
     *   - It ignores un-needed stack frames.
     *   - It Shows the associated Zone for reach frame.
     */
    var FrameType;
    (function (FrameType) {
        /// Skip this frame when printing out stack
        FrameType[FrameType["blackList"] = 0] = "blackList";
        /// This frame marks zone transition
        FrameType[FrameType["transition"] = 1] = "transition";
    })(FrameType || (FrameType = {}));
    var NativeError = global[__symbol__('Error')] = global.Error;
    // Store the frames which should be removed from the stack frames
    var blackListedStackFrames = {};
    // We must find the frame where Error was created, otherwise we assume we don't understand stack
    var zoneAwareFrame;
    global.Error = ZoneAwareError;
    // How should the stack frames be parsed.
    var frameParserStrategy = null;
    var stackRewrite = 'stackRewrite';
    // fix #595, create property descriptor
    // for error properties
    var createProperty = function (props, key) {
        // if property is already defined, skip it.
        if (props[key]) {
            return;
        }
        // define a local property
        // in case error property is not settable
        var name = __symbol__(key);
        props[key] = {
            configurable: true,
            enumerable: true,
            get: function () {
                // if local property has no value
                // use internal error's property value
                if (!this[name]) {
                    var error_2 = this[__symbol__('error')];
                    if (error_2) {
                        this[name] = error_2[key];
                    }
                }
                return this[name];
            },
            set: function (value) {
                // setter will set value to local property value
                this[name] = value;
            }
        };
    };
    // fix #595, create property descriptor
    // for error method properties
    var createMethodProperty = function (props, key) {
        if (props[key]) {
            return;
        }
        props[key] = {
            configurable: true,
            enumerable: true,
            writable: true,
            value: function () {
                var error = this[__symbol__('error')];
                var errorMethod = (error && error[key]) || this[key];
                if (errorMethod) {
                    return errorMethod.apply(error, arguments);
                }
            }
        };
    };
    var createErrorProperties = function () {
        var props = Object.create(null);
        var error = new NativeError();
        var keys = Object.getOwnPropertyNames(error);
        for (var i = 0; i < keys.length; i++) {
            var key = keys[i];
            // Avoid bugs when hasOwnProperty is shadowed
            if (Object.prototype.hasOwnProperty.call(error, key)) {
                createProperty(props, key);
            }
        }
        var proto = NativeError.prototype;
        if (proto) {
            var pKeys = Object.getOwnPropertyNames(proto);
            for (var i = 0; i < pKeys.length; i++) {
                var key = pKeys[i];
                // skip constructor
                if (key !== 'constructor' && key !== 'toString' && key !== 'toSource') {
                    createProperty(props, key);
                }
            }
        }
        // some other properties are not
        // in NativeError
        createProperty(props, 'originalStack');
        createProperty(props, 'zoneAwareStack');
        // define toString, toSource as method property
        createMethodProperty(props, 'toString');
        createMethodProperty(props, 'toSource');
        return props;
    };
    var errorProperties = createErrorProperties();
    // for derived Error class which extends ZoneAwareError
    // we should not override the derived class's property
    // so we create a new props object only copy the properties
    // from errorProperties which not exist in derived Error's prototype
    var getErrorPropertiesForPrototype = function (prototype) {
        // if the prototype is ZoneAwareError.prototype
        // we just return the prebuilt errorProperties.
        if (prototype === ZoneAwareError.prototype) {
            return errorProperties;
        }
        var newProps = Object.create(null);
        var cKeys = Object.getOwnPropertyNames(errorProperties);
        var keys = Object.getOwnPropertyNames(prototype);
        cKeys.forEach(function (cKey) {
            if (keys.filter(function (key) {
                return key === cKey;
            })
                .length === 0) {
                newProps[cKey] = errorProperties[cKey];
            }
        });
        return newProps;
    };
    /**
     * This is ZoneAwareError which processes the stack frame and cleans up extra frames as well as
     * adds zone information to it.
     */
    function ZoneAwareError() {
        // make sure we have a valid this
        // if this is undefined(call Error without new) or this is global
        // or this is some other objects, we should force to create a
        // valid ZoneAwareError by call Object.create()
        if (!(this instanceof ZoneAwareError)) {
            return ZoneAwareError.apply(Object.create(ZoneAwareError.prototype), arguments);
        }
        // Create an Error.
        var error = NativeError.apply(this, arguments);
        this[__symbol__('error')] = error;
        // Save original stack trace
        error.originalStack = error.stack;
        // Process the stack trace and rewrite the frames.
        if (ZoneAwareError[stackRewrite] && error.originalStack) {
            var frames_1 = error.originalStack.split('\n');
            var zoneFrame = _currentZoneFrame;
            var i = 0;
            // Find the first frame
            while (frames_1[i] !== zoneAwareFrame && i < frames_1.length) {
                i++;
            }
            for (; i < frames_1.length && zoneFrame; i++) {
                var frame = frames_1[i];
                if (frame.trim()) {
                    var frameType = blackListedStackFrames.hasOwnProperty(frame) && blackListedStackFrames[frame];
                    if (frameType === FrameType.blackList) {
                        frames_1.splice(i, 1);
                        i--;
                    }
                    else if (frameType === FrameType.transition) {
                        if (zoneFrame.parent) {
                            // This is the special frame where zone changed. Print and process it accordingly
                            frames_1[i] += " [" + zoneFrame.parent.zone.name + " => " + zoneFrame.zone.name + "]";
                            zoneFrame = zoneFrame.parent;
                        }
                        else {
                            zoneFrame = null;
                        }
                    }
                    else {
                        frames_1[i] += " [" + zoneFrame.zone.name + "]";
                    }
                }
            }
            error.stack = error.zoneAwareStack = frames_1.join('\n');
        }
        // use defineProperties here instead of copy property value
        // because of issue #595 which will break angular2.
        Object.defineProperties(this, getErrorPropertiesForPrototype(Object.getPrototypeOf(this)));
        return this;
    }
    // Copy the prototype so that instanceof operator works as expected
    ZoneAwareError.prototype = NativeError.prototype;
    ZoneAwareError[Zone.__symbol__('blacklistedStackFrames')] = blackListedStackFrames;
    ZoneAwareError[stackRewrite] = false;
    if (NativeError.hasOwnProperty('stackTraceLimit')) {
        // Extend default stack limit as we will be removing few frames.
        NativeError.stackTraceLimit = Math.max(NativeError.stackTraceLimit, 15);
        // make sure that ZoneAwareError has the same property which forwards to NativeError.
        Object.defineProperty(ZoneAwareError, 'stackTraceLimit', {
            get: function () {
                return NativeError.stackTraceLimit;
            },
            set: function (value) {
                return NativeError.stackTraceLimit = value;
            }
        });
    }
    if (NativeError.hasOwnProperty('captureStackTrace')) {
        Object.defineProperty(ZoneAwareError, 'captureStackTrace', {
            // add named function here because we need to remove this
            // stack frame when prepareStackTrace below
            value: function zoneCaptureStackTrace(targetObject, constructorOpt) {
                NativeError.captureStackTrace(targetObject, constructorOpt);
            }
        });
    }
    Object.defineProperty(ZoneAwareError, 'prepareStackTrace', {
        get: function () {
            return NativeError.prepareStackTrace;
        },
        set: function (value) {
            if (!value || typeof value !== 'function') {
                return NativeError.prepareStackTrace = value;
            }
            return NativeError.prepareStackTrace = function (error, structuredStackTrace) {
                // remove additional stack information from ZoneAwareError.captureStackTrace
                if (structuredStackTrace) {
                    for (var i = 0; i < structuredStackTrace.length; i++) {
                        var st = structuredStackTrace[i];
                        // remove the first function which name is zoneCaptureStackTrace
                        if (st.getFunctionName() === 'zoneCaptureStackTrace') {
                            structuredStackTrace.splice(i, 1);
                            break;
                        }
                    }
                }
                return value.apply(this, [error, structuredStackTrace]);
            };
        }
    });
    // Now we need to populet the `blacklistedStackFrames` as well as find the
    // run/runGuraded/runTask frames. This is done by creating a detect zone and then threading
    // the execution through all of the above methods so that we can look at the stack trace and
    // find the frames of interest.
    var detectZone = Zone.current.fork({
        name: 'detect',
        onInvoke: function (parentZoneDelegate, currentZone, targetZone, delegate, applyThis, applyArgs, source) {
            // Here only so that it will show up in the stack frame so that it can be black listed.
            return parentZoneDelegate.invoke(targetZone, delegate, applyThis, applyArgs, source);
        },
        onHandleError: function (parentZD, current, target, error) {
            if (error.originalStack && Error === ZoneAwareError) {
                var frames_2 = error.originalStack.split(/\n/);
                var runFrame = false, runGuardedFrame = false, runTaskFrame = false;
                while (frames_2.length) {
                    var frame = frames_2.shift();
                    // On safari it is possible to have stack frame with no line number.
                    // This check makes sure that we don't filter frames on name only (must have
                    // linenumber)
                    if (/:\d+:\d+/.test(frame)) {
                        // Get rid of the path so that we don't accidintely find function name in path.
                        // In chrome the seperator is `(` and `@` in FF and safari
                        // Chrome: at Zone.run (zone.js:100)
                        // Chrome: at Zone.run (http://localhost:9876/base/build/lib/zone.js:100:24)
                        // FireFox: Zone.prototype.run@http://localhost:9876/base/build/lib/zone.js:101:24
                        // Safari: run@http://localhost:9876/base/build/lib/zone.js:101:24
                        var fnName = frame.split('(')[0].split('@')[0];
                        var frameType = FrameType.transition;
                        if (fnName.indexOf('ZoneAwareError') !== -1) {
                            zoneAwareFrame = frame;
                        }
                        if (fnName.indexOf('runGuarded') !== -1) {
                            runGuardedFrame = true;
                        }
                        else if (fnName.indexOf('runTask') !== -1) {
                            runTaskFrame = true;
                        }
                        else if (fnName.indexOf('run') !== -1) {
                            runFrame = true;
                        }
                        else {
                            frameType = FrameType.blackList;
                        }
                        blackListedStackFrames[frame] = frameType;
                        // Once we find all of the frames we can stop looking.
                        if (runFrame && runGuardedFrame && runTaskFrame) {
                            ZoneAwareError[stackRewrite] = true;
                            break;
                        }
                    }
                }
            }
            return false;
        }
    });
    // carefully constructor a stack frame which contains all of the frames of interest which
    // need to be detected and blacklisted.
    var detectRunFn = function () {
        detectZone.run(function () {
            detectZone.runGuarded(function () {
                throw new Error('blacklistStackFrames');
            });
        });
    };
    // Cause the error to extract the stack frames.
    detectZone.runTask(detectZone.scheduleMacroTask('detect', detectRunFn, null, function () { return null; }, null));
    return global['Zone'] = Zone;
})(typeof window === 'object' && window || typeof self === 'object' && self || global);

/**
 * @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}
 */
var zoneSymbol = function (n) { return ("__zone_symbol__" + n); };
var _global$1 = typeof window === 'object' && window || typeof self === 'object' && self || global;
function bindArguments(args, source) {
    for (var i = args.length - 1; i >= 0; i--) {
        if (typeof args[i] === 'function') {
            args[i] = Zone.current.wrap(args[i], source + '_' + i);
        }
    }
    return args;
}

var isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);
var isNode = (!('nw' in _global$1) && typeof process !== 'undefined' &&
    {}.toString.call(process) === '[object process]');

// we are in electron of nw, so we are both browser and nodejs
var isMix = typeof process !== 'undefined' &&
    {}.toString.call(process) === '[object process]' && !isWebWorker &&
    !!(typeof window !== 'undefined' && window['HTMLElement']);
function patchProperty(obj, prop) {
    var desc = Object.getOwnPropertyDescriptor(obj, prop) || { enumerable: true, configurable: true };
    var originalDesc = Object.getOwnPropertyDescriptor(obj, 'original' + prop);
    if (!originalDesc && desc.get) {
        Object.defineProperty(obj, 'original' + prop, { enumerable: false, configurable: true, get: desc.get });
    }
    // 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;
    // substr(2) cuz 'onclick' -> 'click', etc
    var eventName = prop.substr(2);
    var _prop = '_' + prop;
    desc.set = function (fn) {
        if (this[_prop]) {
            this.removeEventListener(eventName, this[_prop]);
        }
        if (typeof fn === 'function') {
            var wrapFn = function (event) {
                var result;
                result = fn.apply(this, arguments);
                if (result != undefined && !result)
                    event.preventDefault();
            };
            this[_prop] = wrapFn;
            this.addEventListener(eventName, wrapFn, false);
        }
        else {
            this[_prop] = null;
        }
    };
    // The getter would return undefined for unassigned properties but the default value of an
    // unassigned property is null
    desc.get = function () {
        var r = this[_prop] || null;
        // 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
        if (r === null) {
            if (originalDesc && originalDesc.get) {
                r = originalDesc.get.apply(this, arguments);
                if (r) {
                    desc.set.apply(this, [r]);
                    if (typeof this['removeAttribute'] === 'function') {
                        this.removeAttribute(prop);
                    }
                }
            }
        }
        return this[_prop] || null;
    };
    Object.defineProperty(obj, prop, desc);
}



var EVENT_TASKS = zoneSymbol('eventTasks');
// For EventTarget
var ADD_EVENT_LISTENER = 'addEventListener';
var REMOVE_EVENT_LISTENER = 'removeEventListener';
function findExistingRegisteredTask(target, handler, name, capture, remove) {
    var eventTasks = target[EVENT_TASKS];
    if (eventTasks) {
        for (var i = 0; i < eventTasks.length; i++) {
            var eventTask = eventTasks[i];
            var data = eventTask.data;
            var listener = data.handler;
            if ((data.handler === handler || listener.listener === handler) &&
                data.useCapturing === capture && data.eventName === name) {
                if (remove) {
                    eventTasks.splice(i, 1);
                }
                return eventTask;
            }
        }
    }
    return null;
}
function findAllExistingRegisteredTasks(target, name, capture, remove) {
    var eventTasks = target[EVENT_TASKS];
    if (eventTasks) {
        var result = [];
        for (var i = eventTasks.length - 1; i >= 0; i--) {
            var eventTask = eventTasks[i];
            var data = eventTask.data;
            if (data.eventName === name && data.useCapturing === capture) {
                result.push(eventTask);
                if (remove) {
                    eventTasks.splice(i, 1);
                }
            }
        }
        return result;
    }
    return null;
}
function attachRegisteredEvent(target, eventTask, isPrepend) {
    var eventTasks = target[EVENT_TASKS];
    if (!eventTasks) {
        eventTasks = target[EVENT_TASKS] = [];
    }
    if (isPrepend) {
        eventTasks.unshift(eventTask);
    }
    else {
        eventTasks.push(eventTask);
    }
}
var defaultListenerMetaCreator = function (self, args) {
    return {
        useCapturing: args[2],
        eventName: args[0],
        handler: args[1],
        target: self || _global$1,
        name: args[0],
        invokeAddFunc: function (addFnSymbol, delegate) {
            if (delegate && delegate.invoke) {
                return this.target[addFnSymbol](this.eventName, delegate.invoke, this.useCapturing);
            }
            else {
                return this.target[addFnSymbol](this.eventName, delegate, this.useCapturing);
            }
        },
        invokeRemoveFunc: function (removeFnSymbol, delegate) {
            if (delegate && delegate.invoke) {
                return this.target[removeFnSymbol](this.eventName, delegate.invoke, this.useCapturing);
            }
            else {
                return this.target[removeFnSymbol](this.eventName, delegate, this.useCapturing);
            }
        }
    };
};
function makeZoneAwareAddListener(addFnName, removeFnName, useCapturingParam, allowDuplicates, isPrepend, metaCreator) {
    if (useCapturingParam === void 0) { useCapturingParam = true; }
    if (allowDuplicates === void 0) { allowDuplicates = false; }
    if (isPrepend === void 0) { isPrepend = false; }
    if (metaCreator === void 0) { metaCreator = defaultListenerMetaCreator; }
    var addFnSymbol = zoneSymbol(addFnName);
    var removeFnSymbol = zoneSymbol(removeFnName);
    var defaultUseCapturing = useCapturingParam ? false : undefined;
    function scheduleEventListener(eventTask) {
        var meta = eventTask.data;
        attachRegisteredEvent(meta.target, eventTask, isPrepend);
        return meta.invokeAddFunc(addFnSymbol, eventTask);
    }
    function cancelEventListener(eventTask) {
        var meta = eventTask.data;
        findExistingRegisteredTask(meta.target, eventTask.invoke, meta.eventName, meta.useCapturing, true);
        return meta.invokeRemoveFunc(removeFnSymbol, eventTask);
    }
    return function zoneAwareAddListener(self, args) {
        var data = metaCreator(self, args);
        data.useCapturing = data.useCapturing || defaultUseCapturing;
        // - Inside a Web Worker, `this` is undefined, the context is `global`
        // - When `addEventListener` is called on the global context in strict mode, `this` is undefined
        // see https://github.com/angular/zone.js/issues/190
        var delegate = null;
        if (typeof data.handler == 'function') {
            delegate = data.handler;
        }
        else if (data.handler && data.handler.handleEvent) {
            delegate = function (event) { return data.handler.handleEvent(event); };
        }
        var validZoneHandler = false;
        try {
            // In cross site contexts (such as WebDriver frameworks like Selenium),
            // accessing the handler object here will cause an exception to be thrown which
            // will fail tests prematurely.
            validZoneHandler = data.handler && data.handler.toString() === '[object FunctionWrapper]';
        }
        catch (error) {
            // Returning nothing here is fine, because objects in a cross-site context are unusable
            return;
        }
        // Ignore special listeners of IE11 & Edge dev tools, see
        // https://github.com/angular/zone.js/issues/150
        if (!delegate || validZoneHandler) {
            return data.invokeAddFunc(addFnSymbol, data.handler);
        }
        if (!allowDuplicates) {
            var eventTask = findExistingRegisteredTask(data.target, data.handler, data.eventName, data.useCapturing, false);
            if (eventTask) {
                // we already registered, so this will have noop.
                return data.invokeAddFunc(addFnSymbol, eventTask);
            }
        }
        var zone = Zone.current;
        var source = data.target.constructor['name'] + '.' + addFnName + ':' + data.eventName;
        zone.scheduleEventTask(source, delegate, data, scheduleEventListener, cancelEventListener);
    };
}
function makeZoneAwareRemoveListener(fnName, useCapturingParam, metaCreator) {
    if (useCapturingParam === void 0) { useCapturingParam = true; }
    if (metaCreator === void 0) { metaCreator = defaultListenerMetaCreator; }
    var symbol = zoneSymbol(fnName);
    var defaultUseCapturing = useCapturingParam ? false : undefined;
    return function zoneAwareRemoveListener(self, args) {
        var data = metaCreator(self, args);
        data.useCapturing = data.useCapturing || defaultUseCapturing;
        // - Inside a Web Worker, `this` is undefined, the context is `global`
        // - When `addEventListener` is called on the global context in strict mode, `this` is undefined
        // see https://github.com/angular/zone.js/issues/190
        var eventTask = findExistingRegisteredTask(data.target, data.handler, data.eventName, data.useCapturing, true);
        if (eventTask) {
            eventTask.zone.cancelTask(eventTask);
        }
        else {
            data.invokeRemoveFunc(symbol, data.handler);
        }
    };
}
function makeZoneAwareRemoveAllListeners(fnName, useCapturingParam) {
    if (useCapturingParam === void 0) { useCapturingParam = true; }
    var symbol = zoneSymbol(fnName);
    var defaultUseCapturing = useCapturingParam ? false : undefined;
    return function zoneAwareRemoveAllListener(self, args) {
        var target = self || _global$1;
        if (args.length === 0) {
            // remove all listeners without eventName
            target[EVENT_TASKS] = [];
            // we don't cancel Task either, because call native eventEmitter.removeAllListeners will
            // will do remove listener(cancelTask) for us
            target[symbol]();
            return;
        }
        var eventName = args[0];
        var useCapturing = args[1] || defaultUseCapturing;
        // call this function just remove the related eventTask from target[EVENT_TASKS]
        findAllExistingRegisteredTasks(target, eventName, useCapturing, true);
        // we don't need useCapturing here because useCapturing is just for DOM, and
        // removeAllListeners should only be called by node eventEmitter
        // and we don't cancel Task either, because call native eventEmitter.removeAllListeners will
        // will do remove listener(cancelTask) for us
        target[symbol](eventName);
    };
}
function makeZoneAwareListeners(fnName) {
    var symbol = zoneSymbol(fnName);
    return function zoneAwareEventListeners(self, args) {
        var eventName = args[0];
        var target = self || _global$1;
        if (!target[EVENT_TASKS]) {
            return [];
        }
        return target[EVENT_TASKS]
            .filter(function (task) { return task.data.eventName === eventName; })
            .map(function (task) { return task.data.handler; });
    };
}
var zoneAwareAddEventListener = makeZoneAwareAddListener(ADD_EVENT_LISTENER, REMOVE_EVENT_LISTENER);
var zoneAwareRemoveEventListener = makeZoneAwareRemoveListener(REMOVE_EVENT_LISTENER);

var originalInstanceKey = zoneSymbol('originalInstance');
// wrap some native API on `window`


function createNamedFn(name, delegate) {
    try {
        return (Function('f', "return function " + name + "(){return f(this, arguments)}"))(delegate);
    }
    catch (error) {
        // if we fail, we must be CSP, just return delegate.
        return function () {
            return delegate(this, arguments);
        };
    }
}
function patchMethod(target, name, patchFn) {
    var proto = target;
    while (proto && Object.getOwnPropertyNames(proto).indexOf(name) === -1) {
        proto = Object.getPrototypeOf(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;
    if (proto && !(delegate = proto[delegateName])) {
        delegate = proto[delegateName] = proto[name];
        proto[name] = createNamedFn(name, patchFn(delegate, delegateName, 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.callbackIndex] = 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.callbackIndex >= 0 && typeof args[meta.callbackIndex] === 'function') {
            var task = Zone.current.scheduleMacroTask(meta.name, args[meta.callbackIndex], meta, scheduleTask, null);
            return task;
        }
        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.callbackIndex] = 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.callbackIndex >= 0 && typeof args[meta.callbackIndex] === 'function') {
            var task = Zone.current.scheduleMicroTask(meta.name, args[meta.callbackIndex], meta, scheduleTask);
            return task;
        }
        else {
            // cause an error by calling it directly.
            return delegate.apply(self, 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 callAndReturnFirstParam = function (fn) {
    return function (self, args) {
        fn(self, args);
        return self;
    };
};
// 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 zoneAwareAddListener$1 = callAndReturnFirstParam(makeZoneAwareAddListener(EE_ADD_LISTENER, EE_REMOVE_LISTENER, false, true, false));
var zoneAwarePrependListener = callAndReturnFirstParam(makeZoneAwareAddListener(EE_PREPEND_LISTENER, EE_REMOVE_LISTENER, false, true, true));
var zoneAwareRemoveListener$1 = callAndReturnFirstParam(makeZoneAwareRemoveListener(EE_REMOVE_LISTENER, false));
var zoneAwareRemoveAllListeners = callAndReturnFirstParam(makeZoneAwareRemoveAllListeners(EE_REMOVE_ALL_LISTENER, false));
var zoneAwareListeners = makeZoneAwareListeners(EE_LISTENERS);
function patchEventEmitterMethods(obj) {
    if (obj && obj.addListener) {
        patchMethod(obj, EE_ADD_LISTENER, function () { return zoneAwareAddListener$1; });
        patchMethod(obj, EE_PREPEND_LISTENER, function () { return zoneAwarePrependListener; });
        patchMethod(obj, EE_REMOVE_LISTENER, function () { return zoneAwareRemoveListener$1; });
        patchMethod(obj, EE_REMOVE_ALL_LISTENER, function () { return zoneAwareRemoveAllListeners; });
        patchMethod(obj, EE_LISTENERS, function () { return zoneAwareListeners; });
        obj[EE_ON] = obj[EE_ADD_LISTENER];
        return true;
    }
    else {
        return false;
    }
}
// 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
 */
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,
                callbackIndex: 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
 */
function patchTimer(window, setName, cancelName, nameSuffix) {
    var setNative = null;
    var clearNative = null;
    setName += nameSuffix;
    cancelName += nameSuffix;
    var tasksByHandleId = {};
    function scheduleTask(task) {
        var data = task.data;
        data.args[0] = function () {
            task.invoke.apply(this, arguments);
            delete tasksByHandleId[data.handleId];
        };
        data.handleId = setNative.apply(window, data.args);
        tasksByHandleId[data.handleId] = task;
        return task;
    }
    function clearTask(task) {
        delete tasksByHandleId[task.data.handleId];
        return clearNative(task.data.handleId);
    }
    setNative =
        patchMethod(window, setName, function (delegate) { return function (self, args) {
            if (typeof args[0] === 'function') {
                var zone = Zone.current;
                var options = {
                    handleId: null,
                    isPeriodic: nameSuffix === 'Interval',
                    delay: (nameSuffix === 'Timeout' || nameSuffix === 'Interval') ? args[1] || 0 : null,
                    args: args
                };
                var task = zone.scheduleMacroTask(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;
                // 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);
                }
                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 task = typeof args[0] === 'number' ? tasksByHandleId[args[0]] : args[0];
            if (task && typeof task.type === 'string') {
                if (task.state !== 'notScheduled' &&
                    (task.cancelFn && task.data.isPeriodic || task.runCount === 0)) {
                    // 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';
var _global = typeof window === 'object' && window || typeof self === 'object' && self || global;
// Timers
var timers = require('timers');
patchTimer(timers, set, clear, 'Timeout');
patchTimer(timers, set, clear, 'Interval');
patchTimer(timers, set, clear, 'Immediate');
var shouldPatchGlobalTimers = global.setTimeout !== timers.setTimeout;
if (shouldPatchGlobalTimers) {
    patchTimer(_global, set, clear, 'Timeout');
    patchTimer(_global, set, clear, 'Interval');
    patchTimer(_global, set, clear, 'Immediate');
}
// patch process related methods
patchProcess();
// Crypto
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,
                callbackIndex: (args.length > 0 && typeof args[args.length - 1] === 'function') ? args.length - 1 : -1,
                target: crypto
            };
        });
    });
}
function patchProcess() {
    // patch nextTick as microTask
    patchMicroTask(process, 'nextTick', function (self, args) {
        return {
            name: 'process.nextTick',
            args: args,
            callbackIndex: (args.length > 0 && typeof args[0] === 'function') ? 0 : -1,
            target: process
        };
    });
}

})));
