/**
* @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 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, "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 = null; }
            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) {
            task.runCount++;
            if (task.zone != this)
                throw new Error('A task can only be run in the zone which created it! (Creation: ' + task.zone.name +
                    '; Execution: ' + this.name + ')');
            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 {
                _currentZoneFrame = _currentZoneFrame.parent;
                _currentTask = previousTask;
            }
        };
        Zone.prototype.scheduleMicroTask = function (source, callback, data, customSchedule) {
            return this._zoneDelegate.scheduleTask(this, new ZoneTask('microTask', this, source, callback, data, customSchedule, null));
        };
        Zone.prototype.scheduleMacroTask = function (source, callback, data, customSchedule, customCancel) {
            return this._zoneDelegate.scheduleTask(this, new ZoneTask('macroTask', this, source, callback, data, customSchedule, customCancel));
        };
        Zone.prototype.scheduleEventTask = function (source, callback, data, customSchedule, customCancel) {
            return this._zoneDelegate.scheduleTask(this, new ZoneTask('eventTask', this, source, callback, data, customSchedule, customCancel));
        };
        Zone.prototype.cancelTask = function (task) {
            var value = this._zoneDelegate.cancelTask(this, task);
            task.runCount = -1;
            task.cancelFn = null;
            return value;
        };
        return Zone;
    }());
    Zone.__symbol__ = __symbol__;
    
    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 = zoneSpec && (zoneSpec.onHasTask ? zoneSpec : parentDelegate._hasTaskZS);
            this._hasTaskDlgt =
                zoneSpec && (zoneSpec.onHasTask ? parentDelegate : parentDelegate._hasTaskDlgt);
            this._hasTaskCurrZone = zoneSpec && (zoneSpec.onHasTask ? this.zone : parentDelegate.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) {
            try {
                if (this._scheduleTaskZS) {
                    return this._scheduleTaskZS.onScheduleTask(this._scheduleTaskDlgt, this._scheduleTaskCurrZone, targetZone, task);
                }
                else if (task.scheduleFn) {
                    task.scheduleFn(task);
                }
                else if (task.type == 'microTask') {
                    scheduleMicroTask(task);
                }
                else {
                    throw new Error('Task is missing scheduleFn.');
                }
                return task;
            }
            finally {
                if (targetZone == this.zone) {
                    this._updateTaskCount(task.type, 1);
                }
            }
        };
        ZoneDelegate.prototype.invokeTask = function (targetZone, task, applyThis, applyArgs) {
            try {
                return this._invokeTaskZS ?
                    this._invokeTaskZS.onInvokeTask(this._invokeTaskDlgt, this._invokeTaskCurrZone, targetZone, task, applyThis, applyArgs) :
                    task.callback.apply(applyThis, applyArgs);
            }
            finally {
                if (targetZone == this.zone && (task.type != 'eventTask') &&
                    !(task.data && task.data.isPeriodic)) {
                    this._updateTaskCount(task.type, -1);
                }
            }
        };
        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 new Error('Task does not support cancellation, or is already canceled.');
            }
            else {
                value = task.cancelFn(task);
            }
            if (targetZone == this.zone) {
                // this should not be in the finally block, because exceptions assume not canceled.
                this._updateTaskCount(task.type, -1);
            }
            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
                };
                try {
                    this.hasTask(this.zone, isEmpty);
                }
                finally {
                    if (this._parentDelegate) {
                        this._parentDelegate._updateTaskCount(type, count);
                    }
                }
            }
        };
        return ZoneDelegate;
    }());
    var ZoneTask = (function () {
        function ZoneTask(type, zone, source, callback, options, scheduleFn, cancelFn) {
            this.runCount = 0;
            this.type = type;
            this.zone = zone;
            this.source = source;
            this.data = options;
            this.scheduleFn = scheduleFn;
            this.cancelFn = cancelFn;
            this.callback = callback;
            var self = this;
            this.invoke = function () {
                _numberOfNestedTaskFrames++;
                try {
                    return zone.runTask(self, this, arguments);
                }
                finally {
                    if (_numberOfNestedTaskFrames == 1) {
                        drainMicroTaskQueue();
                    }
                    _numberOfNestedTaskFrames--;
                }
            };
        }
        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,
                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 (e) {
                        consoleError(e);
                    }
                }
            }
            while (_uncaughtPromiseErrors.length) {
                var _loop_1 = function () {
                    var uncaughtPromiseError = _uncaughtPromiseErrors.shift();
                    try {
                        uncaughtPromiseError.zone.runGuarded(function () {
                            throw uncaughtPromiseError;
                        });
                    }
                    catch (e) {
                        consoleError(e);
                    }
                };
                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) {
            resolvePromise(promise, state, v);
            // Do not return value or you will break the Promise spec.
        };
    }
    function resolvePromise(promise, state, value) {
        if (promise[symbolState] === UNRESOLVED) {
            if (value instanceof ZoneAwarePromise && value.hasOwnProperty(symbolState) &&
                value.hasOwnProperty(symbolValue) && value[symbolState] !== UNRESOLVED) {
                clearRejectedNoCatch(value);
                resolvePromise(promise, value[symbolState], value[symbolValue]);
            }
            else if (isThenable(value)) {
                value.then(makeResolver(promise, state), makeResolver(promise, false));
            }
            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 (e) {
                        var error_1 = e;
                        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] ? onFulfilled || forwardResolution : onRejected || forwardRejection;
        zone.scheduleMicroTask(source, function () {
            try {
                resolvePromise(chainPromise, true, zone.run(delegate, null, [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 (e) {
                resolvePromise(promise, false, e);
            }
        }
        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[__symbol__('Promise')] = global['Promise'];
    global['Promise'] = ZoneAwarePromise;
    function patchThen(NativePromise) {
        var NativePromiseProtototype = NativePromise.prototype;
        var NativePromiseThen = NativePromiseProtototype[__symbol__('then')] =
            NativePromiseProtototype.then;
        NativePromiseProtototype.then = function (onResolve, onReject) {
            var nativePromise = this;
            return new ZoneAwarePromise(function (resolve, reject) {
                NativePromiseThen.call(nativePromise, resolve, reject);
            })
                .then(onResolve, onReject);
        };
    }
    if (NativePromise) {
        patchThen(NativePromise);
        if (typeof global['fetch'] !== 'undefined') {
            var fetchPromise = void 0;
            try {
                // In MS Edge this throws
                fetchPromise = global['fetch']();
            }
            catch (e) {
                // In Chrome this throws instead.
                fetchPromise = global['fetch']('about:blank');
            }
            // ignore output to prevent error;
            fetchPromise.then(function () { return null; }, function () { return null; });
            if (fetchPromise.constructor != NativePromise &&
                fetchPromise.constructor != ZoneAwarePromise) {
                patchThen(fetchPromise.constructor);
            }
        }
    }
    // 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;
}
function patchPrototype(prototype, fnNames) {
    var source = prototype.constructor['name'];
    var _loop_1 = function (i) {
        var name_1 = fnNames[i];
        var delegate = prototype[name_1];
        if (delegate) {
            prototype[name_1] = (function (delegate) {
                return function () {
                    return delegate.apply(this, bindArguments(arguments, source + '.' + name_1));
                };
            })(delegate);
        }
    };
    for (var i = 0; i < fnNames.length; i++) {
        _loop_1(i);
    }
}
var isWebWorker = (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope);
var isNode = (!('nw' in _global$1) && typeof process !== 'undefined' &&
    {}.toString.call(process) === '[object process]');
var isBrowser = !isNode && !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);
}

function patchOnProperties(obj, properties) {
    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]);
    }
    if (properties) {
        for (var i = 0; i < properties.length; i++) {
            patchProperty(obj, 'on' + properties[i]);
        }
    }
}

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 (e) {
            // 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);
        }
    };
}


var zoneAwareAddEventListener = makeZoneAwareAddListener(ADD_EVENT_LISTENER, REMOVE_EVENT_LISTENER);
var zoneAwareRemoveEventListener = makeZoneAwareRemoveListener(REMOVE_EVENT_LISTENER);
function patchEventTargetMethods(obj, addFnName, removeFnName, metaCreator) {
    if (addFnName === void 0) { addFnName = ADD_EVENT_LISTENER; }
    if (removeFnName === void 0) { removeFnName = REMOVE_EVENT_LISTENER; }
    if (metaCreator === void 0) { metaCreator = defaultListenerMetaCreator; }
    if (obj && obj[addFnName]) {
        patchMethod(obj, addFnName, function () { return makeZoneAwareAddListener(addFnName, removeFnName, true, false, false, metaCreator); });
        patchMethod(obj, removeFnName, function () { return makeZoneAwareRemoveListener(removeFnName, true, metaCreator); });
        return true;
    }
    else {
        return false;
    }
}
var originalInstanceKey = zoneSymbol('originalInstance');
// wrap some native API on `window`
function patchClass(className) {
    var OriginalClass = _global$1[className];
    if (!OriginalClass)
        return;
    _global$1[className] = function () {
        var a = bindArguments(arguments, className);
        switch (a.length) {
            case 0:
                this[originalInstanceKey] = new OriginalClass();
                break;
            case 1:
                this[originalInstanceKey] = new OriginalClass(a[0]);
                break;
            case 2:
                this[originalInstanceKey] = new OriginalClass(a[0], a[1]);
                break;
            case 3:
                this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2]);
                break;
            case 4:
                this[originalInstanceKey] = new OriginalClass(a[0], a[1], a[2], a[3]);
                break;
            default:
                throw new Error('Arg list too long.');
        }
    };
    var instance = new OriginalClass(function () { });
    var prop;
    for (prop in instance) {
        // https://bugs.webkit.org/show_bug.cgi?id=44721
        if (className === 'XMLHttpRequest' && prop === 'responseBlob')
            continue;
        (function (prop) {
            if (typeof instance[prop] === 'function') {
                _global$1[className].prototype[prop] = function () {
                    return this[originalInstanceKey][prop].apply(this[originalInstanceKey], arguments);
                };
            }
            else {
                Object.defineProperty(_global$1[className].prototype, prop, {
                    set: function (fn) {
                        if (typeof fn === 'function') {
                            this[originalInstanceKey][prop] = Zone.current.wrap(fn, className + '.' + prop);
                        }
                        else {
                            this[originalInstanceKey][prop] = fn;
                        }
                    },
                    get: function () {
                        return this[originalInstanceKey][prop];
                    }
                });
            }
        }(prop));
    }
    for (prop in OriginalClass) {
        if (prop !== 'prototype' && OriginalClass.hasOwnProperty(prop)) {
            _global$1[className][prop] = OriginalClass[prop];
        }
    }
}

function createNamedFn(name, delegate) {
    try {
        return (Function('f', "return function " + name + "(){return f(this, arguments)}"))(delegate);
    }
    catch (e) {
        // 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: support cancel task later if necessary

/**
 * @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;
                if (handle.ref && handle.unref) {
                    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.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
 */
/*
 * This is necessary for Chrome and Chrome mobile, to enable
 * things like redefining `createdCallback` on an element.
 */
var _defineProperty = Object[zoneSymbol('defineProperty')] = Object.defineProperty;
var _getOwnPropertyDescriptor = Object[zoneSymbol('getOwnPropertyDescriptor')] =
    Object.getOwnPropertyDescriptor;
var _create = Object.create;
var unconfigurablesKey = zoneSymbol('unconfigurables');
function propertyPatch() {
    Object.defineProperty = function (obj, prop, desc) {
        if (isUnconfigurable(obj, prop)) {
            throw new TypeError('Cannot assign to read only property \'' + prop + '\' of ' + obj);
        }
        var originalConfigurableFlag = desc.configurable;
        if (prop !== 'prototype') {
            desc = rewriteDescriptor(obj, prop, desc);
        }
        return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
    };
    Object.defineProperties = function (obj, props) {
        Object.keys(props).forEach(function (prop) {
            Object.defineProperty(obj, prop, props[prop]);
        });
        return obj;
    };
    Object.create = function (obj, proto) {
        if (typeof proto === 'object' && !Object.isFrozen(proto)) {
            Object.keys(proto).forEach(function (prop) {
                proto[prop] = rewriteDescriptor(obj, prop, proto[prop]);
            });
        }
        return _create(obj, proto);
    };
    Object.getOwnPropertyDescriptor = function (obj, prop) {
        var desc = _getOwnPropertyDescriptor(obj, prop);
        if (isUnconfigurable(obj, prop)) {
            desc.configurable = false;
        }
        return desc;
    };
}

function _redefineProperty(obj, prop, desc) {
    var originalConfigurableFlag = desc.configurable;
    desc = rewriteDescriptor(obj, prop, desc);
    return _tryDefineProperty(obj, prop, desc, originalConfigurableFlag);
}

function isUnconfigurable(obj, prop) {
    return obj && obj[unconfigurablesKey] && obj[unconfigurablesKey][prop];
}
function rewriteDescriptor(obj, prop, desc) {
    desc.configurable = true;
    if (!desc.configurable) {
        if (!obj[unconfigurablesKey]) {
            _defineProperty(obj, unconfigurablesKey, { writable: true, value: {} });
        }
        obj[unconfigurablesKey][prop] = true;
    }
    return desc;
}
function _tryDefineProperty(obj, prop, desc, originalConfigurableFlag) {
    try {
        return _defineProperty(obj, prop, desc);
    }
    catch (e) {
        if (desc.configurable) {
            // In case of errors, when the configurable flag was likely set by rewriteDescriptor(), let's
            // retry with the original flag value
            if (typeof originalConfigurableFlag == 'undefined') {
                delete desc.configurable;
            }
            else {
                desc.configurable = originalConfigurableFlag;
            }
            try {
                return _defineProperty(obj, prop, desc);
            }
            catch (e) {
                var descJson = null;
                try {
                    descJson = JSON.stringify(desc);
                }
                catch (e) {
                    descJson = descJson.toString();
                }
                console.log("Attempting to configure '" + prop + "' with descriptor '" + descJson + "' on object '" + obj + "' and got error, giving up: " + e);
            }
        }
        else {
            throw e;
        }
    }
}

/**
 * @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 WTF_ISSUE_555 = 'Anchor,Area,Audio,BR,Base,BaseFont,Body,Button,Canvas,Content,DList,Directory,Div,Embed,FieldSet,Font,Form,Frame,FrameSet,HR,Head,Heading,Html,IFrame,Image,Input,Keygen,LI,Label,Legend,Link,Map,Marquee,Media,Menu,Meta,Meter,Mod,OList,Object,OptGroup,Option,Output,Paragraph,Pre,Progress,Quote,Script,Select,Source,Span,Style,TableCaption,TableCell,TableCol,Table,TableRow,TableSection,TextArea,Title,Track,UList,Unknown,Video';
var NO_EVENT_TARGET = 'ApplicationCache,EventSource,FileReader,InputMethodContext,MediaController,MessagePort,Node,Performance,SVGElementInstance,SharedWorker,TextTrack,TextTrackCue,TextTrackList,WebKitNamedFlow,Window,Worker,WorkerGlobalScope,XMLHttpRequest,XMLHttpRequestEventTarget,XMLHttpRequestUpload,IDBRequest,IDBOpenDBRequest,IDBDatabase,IDBTransaction,IDBCursor,DBIndex,WebSocket'
    .split(',');
var EVENT_TARGET = 'EventTarget';
function eventTargetPatch(_global) {
    var apis = [];
    var isWtf = _global['wtf'];
    if (isWtf) {
        // Workaround for: https://github.com/google/tracing-framework/issues/555
        apis = WTF_ISSUE_555.split(',').map(function (v) { return 'HTML' + v + 'Element'; }).concat(NO_EVENT_TARGET);
    }
    else if (_global[EVENT_TARGET]) {
        apis.push(EVENT_TARGET);
    }
    else {
        // Note: EventTarget is not available in all browsers,
        // if it's not available, we instead patch the APIs in the IDL that inherit from EventTarget
        apis = NO_EVENT_TARGET;
    }
    for (var i = 0; i < apis.length; i++) {
        var type = _global[apis[i]];
        patchEventTargetMethods(type && type.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
 */
// we have to patch the instance since the proto is non-configurable
function apply(_global) {
    var WS = _global.WebSocket;
    // On Safari window.EventTarget doesn't exist so need to patch WS add/removeEventListener
    // On older Chrome, no need since EventTarget was already patched
    if (!_global.EventTarget) {
        patchEventTargetMethods(WS.prototype);
    }
    _global.WebSocket = function (a, b) {
        var socket = arguments.length > 1 ? new WS(a, b) : new WS(a);
        var proxySocket;
        // Safari 7.0 has non-configurable own 'onmessage' and friends properties on the socket instance
        var onmessageDesc = Object.getOwnPropertyDescriptor(socket, 'onmessage');
        if (onmessageDesc && onmessageDesc.configurable === false) {
            proxySocket = Object.create(socket);
            ['addEventListener', 'removeEventListener', 'send', 'close'].forEach(function (propName) {
                proxySocket[propName] = function () {
                    return socket[propName].apply(socket, arguments);
                };
            });
        }
        else {
            // we can patch the real socket
            proxySocket = socket;
        }
        patchOnProperties(proxySocket, ['close', 'error', 'message', 'open']);
        return proxySocket;
    };
    for (var prop in WS) {
        _global.WebSocket[prop] = WS[prop];
    }
}

/**
 * @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 eventNames = 'copy cut paste abort blur focus canplay canplaythrough change click contextmenu dblclick drag dragend dragenter dragleave dragover dragstart drop durationchange emptied ended input invalid keydown keypress keyup load loadeddata loadedmetadata loadstart message mousedown mouseenter mouseleave mousemove mouseout mouseover mouseup pause play playing progress ratechange reset scroll seeked seeking select show stalled submit suspend timeupdate volumechange waiting mozfullscreenchange mozfullscreenerror mozpointerlockchange mozpointerlockerror error webglcontextrestored webglcontextlost webglcontextcreationerror'
    .split(' ');
function propertyDescriptorPatch(_global) {
    if (isNode) {
        return;
    }
    var supportsWebSocket = typeof WebSocket !== 'undefined';
    if (canPatchViaPropertyDescriptor()) {
        // for browsers that we can patch the descriptor:  Chrome & Firefox
        if (isBrowser) {
            patchOnProperties(HTMLElement.prototype, eventNames);
        }
        patchOnProperties(XMLHttpRequest.prototype, null);
        if (typeof IDBIndex !== 'undefined') {
            patchOnProperties(IDBIndex.prototype, null);
            patchOnProperties(IDBRequest.prototype, null);
            patchOnProperties(IDBOpenDBRequest.prototype, null);
            patchOnProperties(IDBDatabase.prototype, null);
            patchOnProperties(IDBTransaction.prototype, null);
            patchOnProperties(IDBCursor.prototype, null);
        }
        if (supportsWebSocket) {
            patchOnProperties(WebSocket.prototype, null);
        }
    }
    else {
        // Safari, Android browsers (Jelly Bean)
        patchViaCapturingAllTheEvents();
        patchClass('XMLHttpRequest');
        if (supportsWebSocket) {
            apply(_global);
        }
    }
}
function canPatchViaPropertyDescriptor() {
    if (isBrowser && !Object.getOwnPropertyDescriptor(HTMLElement.prototype, 'onclick') &&
        typeof Element !== 'undefined') {
        // WebKit https://bugs.webkit.org/show_bug.cgi?id=134364
        // IDL interface attributes are not configurable
        var desc = Object.getOwnPropertyDescriptor(Element.prototype, 'onclick');
        if (desc && !desc.configurable)
            return false;
    }
    var xhrDesc = Object.getOwnPropertyDescriptor(XMLHttpRequest.prototype, 'onreadystatechange');
    // add enumerable and configurable here because in opera
    // by default XMLHttpRequest.prototype.onreadystatechange is undefined
    // without adding enumerable and configurable will cause onreadystatechange
    // non-configurable
    Object.defineProperty(XMLHttpRequest.prototype, 'onreadystatechange', {
        enumerable: true,
        configurable: true,
        get: function () {
            return true;
        }
    });
    var req = new XMLHttpRequest();
    var result = !!req.onreadystatechange;
    // restore original desc
    Object.defineProperty(XMLHttpRequest.prototype, 'onreadystatechange', xhrDesc || {});
    return result;
}

var unboundKey = zoneSymbol('unbound');
// Whenever any eventListener fires, we check the eventListener target and all parents
// for `onwhatever` properties and replace them with zone-bound functions
// - Chrome (for now)
function patchViaCapturingAllTheEvents() {
    var _loop_1 = function (i) {
        var property = eventNames[i];
        var onproperty = 'on' + property;
        self.addEventListener(property, function (event) {
            var elt = event.target, bound, source;
            if (elt) {
                source = elt.constructor['name'] + '.' + onproperty;
            }
            else {
                source = 'unknown.' + onproperty;
            }
            while (elt) {
                if (elt[onproperty] && !elt[onproperty][unboundKey]) {
                    bound = Zone.current.wrap(elt[onproperty], source);
                    bound[unboundKey] = elt[onproperty];
                    elt[onproperty] = bound;
                }
                elt = elt.parentElement;
            }
        }, true);
    };
    for (var i = 0; i < eventNames.length; i++) {
        _loop_1(i);
    }
    
}

/**
 * @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 registerElementPatch(_global) {
    if (!isBrowser || !('registerElement' in _global.document)) {
        return;
    }
    var _registerElement = document.registerElement;
    var callbacks = ['createdCallback', 'attachedCallback', 'detachedCallback', 'attributeChangedCallback'];
    document.registerElement = function (name, opts) {
        if (opts && opts.prototype) {
            callbacks.forEach(function (callback) {
                var source = 'Document.registerElement::' + callback;
                if (opts.prototype.hasOwnProperty(callback)) {
                    var descriptor = Object.getOwnPropertyDescriptor(opts.prototype, callback);
                    if (descriptor && descriptor.value) {
                        descriptor.value = Zone.current.wrap(descriptor.value, source);
                        _redefineProperty(opts.prototype, callback, descriptor);
                    }
                    else {
                        opts.prototype[callback] = Zone.current.wrap(opts.prototype[callback], source);
                    }
                }
                else if (opts.prototype[callback]) {
                    opts.prototype[callback] = Zone.current.wrap(opts.prototype[callback], source);
                }
            });
        }
        return _registerElement.apply(document, [name, opts]);
    };
}

/**
 * @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 blockingMethods = ['alert', 'prompt', 'confirm'];
var _global = typeof window === 'object' && window || typeof self === 'object' && self || global;
patchTimer(_global, set, clear, 'Timeout');
patchTimer(_global, set, clear, 'Interval');
patchTimer(_global, set, clear, 'Immediate');
patchTimer(_global, 'request', 'cancel', 'AnimationFrame');
patchTimer(_global, 'mozRequest', 'mozCancel', 'AnimationFrame');
patchTimer(_global, 'webkitRequest', 'webkitCancel', 'AnimationFrame');
for (var i = 0; i < blockingMethods.length; i++) {
    var name_1 = blockingMethods[i];
    patchMethod(_global, name_1, function (delegate, symbol, name) {
        return function (s, args) {
            return Zone.current.run(delegate, _global, args, name);
        };
    });
}
eventTargetPatch(_global);
propertyDescriptorPatch(_global);
patchClass('MutationObserver');
patchClass('WebKitMutationObserver');
patchClass('FileReader');
propertyPatch();
registerElementPatch(_global);
// Treat XMLHTTPRequest as a macrotask.
patchXHR(_global);
var XHR_TASK = zoneSymbol('xhrTask');
var XHR_SYNC = zoneSymbol('xhrSync');
var XHR_LISTENER = zoneSymbol('xhrListener');
var XHR_SCHEDULED = zoneSymbol('xhrScheduled');
function patchXHR(window) {
    function findPendingTask(target) {
        var pendingTask = target[XHR_TASK];
        return pendingTask;
    }
    function scheduleTask(task) {
        self[XHR_SCHEDULED] = false;
        var data = task.data;
        // remove existing event listener
        var listener = data.target[XHR_LISTENER];
        if (listener) {
            data.target.removeEventListener('readystatechange', listener);
        }
        var newListener = data.target[XHR_LISTENER] = function () {
            if (data.target.readyState === data.target.DONE) {
                if (!data.aborted && self[XHR_SCHEDULED]) {
                    task.invoke();
                }
            }
        };
        data.target.addEventListener('readystatechange', newListener);
        var storedTask = data.target[XHR_TASK];
        if (!storedTask) {
            data.target[XHR_TASK] = task;
        }
        sendNative.apply(data.target, data.args);
        self[XHR_SCHEDULED] = true;
        return task;
    }
    function placeholderCallback() { }
    function clearTask(task) {
        var data = task.data;
        // Note - ideally, we would call data.target.removeEventListener here, but it's too late
        // to prevent it from firing. So instead, we store info for the event listener.
        data.aborted = true;
        return abortNative.apply(data.target, data.args);
    }
    var openNative = patchMethod(window.XMLHttpRequest.prototype, 'open', function () { return function (self, args) {
        self[XHR_SYNC] = args[2] == false;
        return openNative.apply(self, args);
    }; });
    var sendNative = patchMethod(window.XMLHttpRequest.prototype, 'send', function () { return function (self, args) {
        var zone = Zone.current;
        if (self[XHR_SYNC]) {
            // if the XHR is sync there is no task to schedule, just execute the code.
            return sendNative.apply(self, args);
        }
        else {
            var options = { target: self, isPeriodic: false, delay: null, args: args, aborted: false };
            return zone.scheduleMacroTask('XMLHttpRequest.send', placeholderCallback, options, scheduleTask, clearTask);
        }
    }; });
    var abortNative = patchMethod(window.XMLHttpRequest.prototype, 'abort', function (delegate) { return function (self, args) {
        var task = findPendingTask(self);
        if (task && typeof task.type == 'string') {
            // If the XHR has already completed, do nothing.
            // If the XHR has already been aborted, do nothing.
            // Fix #569, call abort multiple times before done will cause
            // macroTask task count be negative number
            if (task.cancelFn == null || (task.data && task.data.aborted)) {
                return;
            }
            task.zone.cancelTask(task);
        }
        // Otherwise, we are trying to abort an XHR which has not yet been sent, so there is no task
        // to cancel. Do nothing.
    }; });
}
/// GEO_LOCATION
if (_global['navigator'] && _global['navigator'].geolocation) {
    patchPrototype(_global['navigator'].geolocation, ['getCurrentPosition', 'watchPosition']);
}

/**
 * @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
 */

})));