@angular/router/fesm2015/router.js

/**
 * @license Angular v8.0.2
 * (c) 2010-2019 Google LLC. https://angular.io/
 * License: MIT
 */

import { LocationStrategy, Location, PlatformLocation, APP_BASE_HREF, ViewportScroller, HashLocationStrategy, PathLocationStrategy, LOCATION_INITIALIZED } from '@angular/common';
import { Component, ɵisObservable, ɵisPromise, NgModuleRef, InjectionToken, NgModuleFactory, ɵConsole, NgZone, isDevMode, Directive, Attribute, Renderer2, ElementRef, Input, HostListener, HostBinding, Optional, ContentChildren, EventEmitter, ViewContainerRef, ComponentFactoryResolver, ChangeDetectorRef, Output, Injectable, NgModuleFactoryLoader, Compiler, Injector, ApplicationRef, SystemJsNgModuleLoader, NgProbeToken, ANALYZE_FOR_ENTRY_COMPONENTS, SkipSelf, Inject, APP_INITIALIZER, APP_BOOTSTRAP_LISTENER, NgModule, Version } from '@angular/core';
import { of, from, BehaviorSubject, EmptyError, Observable, combineLatest, defer, Subject, EMPTY } from 'rxjs';
import { map, concatAll, last as last$1, catchError, first, mergeMap, every, switchMap, take, startWith, scan, filter, concatMap, reduce, tap, finalize, mergeAll } from 'rxjs/operators';
import { ɵgetDOM } from '@angular/platform-browser';

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * \@description
 *
 * Base for events the Router goes through, as opposed to events tied to a specific
 * Route. `RouterEvent`s will only be fired one time for any given navigation.
 *
 * Example:
 *
 * ```
 * class MyService {
 *   constructor(public router: Router, logger: Logger) {
 *     router.events.pipe(
 *       filter(e => e instanceof RouterEvent)
 *     ).subscribe(e => {
 *       logger.log(e.id, e.url);
 *     });
 *   }
 * }
 * ```
 *
 * \@publicApi
 */
class RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     */
    constructor(id, url) {
        this.id = id;
        this.url = url;
    }
}
/**
 * \@description
 *
 * Represents an event triggered when a navigation starts.
 *
 * \@publicApi
 */
class NavigationStart extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?=} navigationTrigger
     * @param {?=} restoredState
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, 
    /** @docsNotRequired */
    navigationTrigger = 'imperative', 
    /** @docsNotRequired */
    restoredState = null) {
        super(id, url);
        this.navigationTrigger = navigationTrigger;
        this.restoredState = restoredState;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() { return `NavigationStart(id: ${this.id}, url: '${this.url}')`; }
}
/**
 * \@description
 *
 * Represents an event triggered when a navigation ends successfully.
 *
 * \@publicApi
 */
class NavigationEnd extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() {
        return `NavigationEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}')`;
    }
}
/**
 * \@description
 *
 * Represents an event triggered when a navigation is canceled.
 *
 * \@publicApi
 */
class NavigationCancel extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} reason
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, reason) {
        super(id, url);
        this.reason = reason;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() { return `NavigationCancel(id: ${this.id}, url: '${this.url}')`; }
}
/**
 * \@description
 *
 * Represents an event triggered when a navigation fails due to an unexpected error.
 *
 * \@publicApi
 */
class NavigationError extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} error
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, error) {
        super(id, url);
        this.error = error;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() {
        return `NavigationError(id: ${this.id}, url: '${this.url}', error: ${this.error})`;
    }
}
/**
 * \@description
 *
 * Represents an event triggered when routes are recognized.
 *
 * \@publicApi
 */
class RoutesRecognized extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     * @param {?} state
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects, state) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
        this.state = state;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() {
        return `RoutesRecognized(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;
    }
}
/**
 * \@description
 *
 * Represents the start of the Guard phase of routing.
 *
 * \@publicApi
 */
class GuardsCheckStart extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     * @param {?} state
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects, state) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
        this.state = state;
    }
    /**
     * @return {?}
     */
    toString() {
        return `GuardsCheckStart(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;
    }
}
/**
 * \@description
 *
 * Represents the end of the Guard phase of routing.
 *
 * \@publicApi
 */
class GuardsCheckEnd extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     * @param {?} state
     * @param {?} shouldActivate
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects, state, shouldActivate) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
        this.state = state;
        this.shouldActivate = shouldActivate;
    }
    /**
     * @return {?}
     */
    toString() {
        return `GuardsCheckEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state}, shouldActivate: ${this.shouldActivate})`;
    }
}
/**
 * \@description
 *
 * Represents the start of the Resolve phase of routing. The timing of this
 * event may change, thus it's experimental. In the current iteration it will run
 * in the "resolve" phase whether there's things to resolve or not. In the future this
 * behavior may change to only run when there are things to be resolved.
 *
 * \@publicApi
 */
class ResolveStart extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     * @param {?} state
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects, state) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
        this.state = state;
    }
    /**
     * @return {?}
     */
    toString() {
        return `ResolveStart(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;
    }
}
/**
 * \@description
 *
 * Represents the end of the Resolve phase of routing. See note on
 * `ResolveStart` for use of this experimental API.
 *
 * \@publicApi
 */
class ResolveEnd extends RouterEvent {
    /**
     * @param {?} id
     * @param {?} url
     * @param {?} urlAfterRedirects
     * @param {?} state
     */
    constructor(
    /** @docsNotRequired */
    id, 
    /** @docsNotRequired */
    url, urlAfterRedirects, state) {
        super(id, url);
        this.urlAfterRedirects = urlAfterRedirects;
        this.state = state;
    }
    /**
     * @return {?}
     */
    toString() {
        return `ResolveEnd(id: ${this.id}, url: '${this.url}', urlAfterRedirects: '${this.urlAfterRedirects}', state: ${this.state})`;
    }
}
/**
 * \@description
 *
 * Represents an event triggered before lazy loading a route config.
 *
 * \@publicApi
 */
class RouteConfigLoadStart {
    /**
     * @param {?} route
     */
    constructor(route) {
        this.route = route;
    }
    /**
     * @return {?}
     */
    toString() { return `RouteConfigLoadStart(path: ${this.route.path})`; }
}
/**
 * \@description
 *
 * Represents an event triggered when a route has been lazy loaded.
 *
 * \@publicApi
 */
class RouteConfigLoadEnd {
    /**
     * @param {?} route
     */
    constructor(route) {
        this.route = route;
    }
    /**
     * @return {?}
     */
    toString() { return `RouteConfigLoadEnd(path: ${this.route.path})`; }
}
/**
 * \@description
 *
 * Represents the start of end of the Resolve phase of routing. See note on
 * `ChildActivationEnd` for use of this experimental API.
 *
 * \@publicApi
 */
class ChildActivationStart {
    /**
     * @param {?} snapshot
     */
    constructor(snapshot) {
        this.snapshot = snapshot;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';
        return `ChildActivationStart(path: '${path}')`;
    }
}
/**
 * \@description
 *
 * Represents the start of end of the Resolve phase of routing. See note on
 * `ChildActivationStart` for use of this experimental API.
 *
 * \@publicApi
 */
class ChildActivationEnd {
    /**
     * @param {?} snapshot
     */
    constructor(snapshot) {
        this.snapshot = snapshot;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';
        return `ChildActivationEnd(path: '${path}')`;
    }
}
/**
 * \@description
 *
 * Represents the start of end of the Resolve phase of routing. See note on
 * `ActivationEnd` for use of this experimental API.
 *
 * \@publicApi
 */
class ActivationStart {
    /**
     * @param {?} snapshot
     */
    constructor(snapshot) {
        this.snapshot = snapshot;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';
        return `ActivationStart(path: '${path}')`;
    }
}
/**
 * \@description
 *
 * Represents the start of end of the Resolve phase of routing. See note on
 * `ActivationStart` for use of this experimental API.
 *
 * \@publicApi
 */
class ActivationEnd {
    /**
     * @param {?} snapshot
     */
    constructor(snapshot) {
        this.snapshot = snapshot;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const path = this.snapshot.routeConfig && this.snapshot.routeConfig.path || '';
        return `ActivationEnd(path: '${path}')`;
    }
}
/**
 * \@description
 *
 * Represents a scrolling event.
 *
 * \@publicApi
 */
class Scroll {
    /**
     * @param {?} routerEvent
     * @param {?} position
     * @param {?} anchor
     */
    constructor(routerEvent, position, anchor) {
        this.routerEvent = routerEvent;
        this.position = position;
        this.anchor = anchor;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const pos = this.position ? `${this.position[0]}, ${this.position[1]}` : null;
        return `Scroll(anchor: '${this.anchor}', position: '${pos}')`;
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * This component is used internally within the router to be a placeholder when an empty
 * router-outlet is needed. For example, with a config such as:
 *
 * `{path: 'parent', outlet: 'nav', children: [...]}`
 *
 * In order to render, there needs to be a component on this config, which will default
 * to this `EmptyOutletComponent`.
 */
class ɵEmptyOutletComponent {
}
ɵEmptyOutletComponent.decorators = [
    { type: Component, args: [{ template: `<router-outlet></router-outlet>` }] }
];

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * \@description
 *
 * Name of the primary outlet.
 *
 * \@publicApi
 * @type {?}
 */
const PRIMARY_OUTLET = 'primary';
class ParamsAsMap {
    /**
     * @param {?} params
     */
    constructor(params) { this.params = params || {}; }
    /**
     * @param {?} name
     * @return {?}
     */
    has(name) { return this.params.hasOwnProperty(name); }
    /**
     * @param {?} name
     * @return {?}
     */
    get(name) {
        if (this.has(name)) {
            /** @type {?} */
            const v = this.params[name];
            return Array.isArray(v) ? v[0] : v;
        }
        return null;
    }
    /**
     * @param {?} name
     * @return {?}
     */
    getAll(name) {
        if (this.has(name)) {
            /** @type {?} */
            const v = this.params[name];
            return Array.isArray(v) ? v : [v];
        }
        return [];
    }
    /**
     * @return {?}
     */
    get keys() { return Object.keys(this.params); }
}
/**
 * Convert a `Params` instance to a `ParamMap`.
 *
 * \@publicApi
 * @param {?} params
 * @return {?}
 */
function convertToParamMap(params) {
    return new ParamsAsMap(params);
}
/** @type {?} */
const NAVIGATION_CANCELING_ERROR = 'ngNavigationCancelingError';
/**
 * @param {?} message
 * @return {?}
 */
function navigationCancelingError(message) {
    /** @type {?} */
    const error = Error('NavigationCancelingError: ' + message);
    ((/** @type {?} */ (error)))[NAVIGATION_CANCELING_ERROR] = true;
    return error;
}
/**
 * @param {?} error
 * @return {?}
 */
function isNavigationCancelingError(error) {
    return error && ((/** @type {?} */ (error)))[NAVIGATION_CANCELING_ERROR];
}
// Matches the route configuration (`route`) against the actual URL (`segments`).
/**
 * @param {?} segments
 * @param {?} segmentGroup
 * @param {?} route
 * @return {?}
 */
function defaultUrlMatcher(segments, segmentGroup, route) {
    /** @type {?} */
    const parts = (/** @type {?} */ (route.path)).split('/');
    if (parts.length > segments.length) {
        // The actual URL is shorter than the config, no match
        return null;
    }
    if (route.pathMatch === 'full' &&
        (segmentGroup.hasChildren() || parts.length < segments.length)) {
        // The config is longer than the actual URL but we are looking for a full match, return null
        return null;
    }
    /** @type {?} */
    const posParams = {};
    // Check each config part against the actual URL
    for (let index = 0; index < parts.length; index++) {
        /** @type {?} */
        const part = parts[index];
        /** @type {?} */
        const segment = segments[index];
        /** @type {?} */
        const isParameter = part.startsWith(':');
        if (isParameter) {
            posParams[part.substring(1)] = segment;
        }
        else if (part !== segment.path) {
            // The actual URL part does not match the config, no match
            return null;
        }
    }
    return { consumed: segments.slice(0, parts.length), posParams };
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class LoadedRouterConfig {
    /**
     * @param {?} routes
     * @param {?} module
     */
    constructor(routes, module) {
        this.routes = routes;
        this.module = module;
    }
}
/**
 * @param {?} config
 * @param {?=} parentPath
 * @return {?}
 */
function validateConfig(config, parentPath = '') {
    // forEach doesn't iterate undefined values
    for (let i = 0; i < config.length; i++) {
        /** @type {?} */
        const route = config[i];
        /** @type {?} */
        const fullPath = getFullPath(parentPath, route);
        validateNode(route, fullPath);
    }
}
/**
 * @param {?} route
 * @param {?} fullPath
 * @return {?}
 */
function validateNode(route, fullPath) {
    if (!route) {
        throw new Error(`
      Invalid configuration of route '${fullPath}': Encountered undefined route.
      The reason might be an extra comma.

      Example:
      const routes: Routes = [
        { path: '', redirectTo: '/dashboard', pathMatch: 'full' },
        { path: 'dashboard',  component: DashboardComponent },, << two commas
        { path: 'detail/:id', component: HeroDetailComponent }
      ];
    `);
    }
    if (Array.isArray(route)) {
        throw new Error(`Invalid configuration of route '${fullPath}': Array cannot be specified`);
    }
    if (!route.component && !route.children && !route.loadChildren &&
        (route.outlet && route.outlet !== PRIMARY_OUTLET)) {
        throw new Error(`Invalid configuration of route '${fullPath}': a componentless route without children or loadChildren cannot have a named outlet set`);
    }
    if (route.redirectTo && route.children) {
        throw new Error(`Invalid configuration of route '${fullPath}': redirectTo and children cannot be used together`);
    }
    if (route.redirectTo && route.loadChildren) {
        throw new Error(`Invalid configuration of route '${fullPath}': redirectTo and loadChildren cannot be used together`);
    }
    if (route.children && route.loadChildren) {
        throw new Error(`Invalid configuration of route '${fullPath}': children and loadChildren cannot be used together`);
    }
    if (route.redirectTo && route.component) {
        throw new Error(`Invalid configuration of route '${fullPath}': redirectTo and component cannot be used together`);
    }
    if (route.path && route.matcher) {
        throw new Error(`Invalid configuration of route '${fullPath}': path and matcher cannot be used together`);
    }
    if (route.redirectTo === void 0 && !route.component && !route.children && !route.loadChildren) {
        throw new Error(`Invalid configuration of route '${fullPath}'. One of the following must be provided: component, redirectTo, children or loadChildren`);
    }
    if (route.path === void 0 && route.matcher === void 0) {
        throw new Error(`Invalid configuration of route '${fullPath}': routes must have either a path or a matcher specified`);
    }
    if (typeof route.path === 'string' && route.path.charAt(0) === '/') {
        throw new Error(`Invalid configuration of route '${fullPath}': path cannot start with a slash`);
    }
    if (route.path === '' && route.redirectTo !== void 0 && route.pathMatch === void 0) {
        /** @type {?} */
        const exp = `The default value of 'pathMatch' is 'prefix', but often the intent is to use 'full'.`;
        throw new Error(`Invalid configuration of route '{path: "${fullPath}", redirectTo: "${route.redirectTo}"}': please provide 'pathMatch'. ${exp}`);
    }
    if (route.pathMatch !== void 0 && route.pathMatch !== 'full' && route.pathMatch !== 'prefix') {
        throw new Error(`Invalid configuration of route '${fullPath}': pathMatch can only be set to 'prefix' or 'full'`);
    }
    if (route.children) {
        validateConfig(route.children, fullPath);
    }
}
/**
 * @param {?} parentPath
 * @param {?} currentRoute
 * @return {?}
 */
function getFullPath(parentPath, currentRoute) {
    if (!currentRoute) {
        return parentPath;
    }
    if (!parentPath && !currentRoute.path) {
        return '';
    }
    else if (parentPath && !currentRoute.path) {
        return `${parentPath}/`;
    }
    else if (!parentPath && currentRoute.path) {
        return currentRoute.path;
    }
    else {
        return `${parentPath}/${currentRoute.path}`;
    }
}
/**
 * Makes a copy of the config and adds any default required properties.
 * @param {?} r
 * @return {?}
 */
function standardizeConfig(r) {
    /** @type {?} */
    const children = r.children && r.children.map(standardizeConfig);
    /** @type {?} */
    const c = children ? Object.assign({}, r, { children }) : Object.assign({}, r);
    if (!c.component && (children || c.loadChildren) && (c.outlet && c.outlet !== PRIMARY_OUTLET)) {
        c.component = ɵEmptyOutletComponent;
    }
    return c;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} a
 * @param {?} b
 * @return {?}
 */
function shallowEqualArrays(a, b) {
    if (a.length !== b.length)
        return false;
    for (let i = 0; i < a.length; ++i) {
        if (!shallowEqual(a[i], b[i]))
            return false;
    }
    return true;
}
/**
 * @param {?} a
 * @param {?} b
 * @return {?}
 */
function shallowEqual(a, b) {
    // Casting Object.keys return values to include `undefined` as there are some cases
    // in IE 11 where this can happen. Cannot provide a test because the behavior only
    // exists in certain circumstances in IE 11, therefore doing this cast ensures the
    // logic is correct for when this edge case is hit.
    /** @type {?} */
    const k1 = (/** @type {?} */ (Object.keys(a)));
    /** @type {?} */
    const k2 = (/** @type {?} */ (Object.keys(b)));
    if (!k1 || !k2 || k1.length != k2.length) {
        return false;
    }
    /** @type {?} */
    let key;
    for (let i = 0; i < k1.length; i++) {
        key = k1[i];
        if (a[key] !== b[key]) {
            return false;
        }
    }
    return true;
}
/**
 * Flattens single-level nested arrays.
 * @template T
 * @param {?} arr
 * @return {?}
 */
function flatten(arr) {
    return Array.prototype.concat.apply([], arr);
}
/**
 * Return the last element of an array.
 * @template T
 * @param {?} a
 * @return {?}
 */
function last(a) {
    return a.length > 0 ? a[a.length - 1] : null;
}
/**
 * @template K, V
 * @param {?} map
 * @param {?} callback
 * @return {?}
 */
function forEach(map, callback) {
    for (const prop in map) {
        if (map.hasOwnProperty(prop)) {
            callback(map[prop], prop);
        }
    }
}
/**
 * @template A, B
 * @param {?} obj
 * @param {?} fn
 * @return {?}
 */
function waitForMap(obj, fn) {
    if (Object.keys(obj).length === 0) {
        return of({});
    }
    /** @type {?} */
    const waitHead = [];
    /** @type {?} */
    const waitTail = [];
    /** @type {?} */
    const res = {};
    forEach(obj, (/**
     * @param {?} a
     * @param {?} k
     * @return {?}
     */
    (a, k) => {
        /** @type {?} */
        const mapped = fn(k, a).pipe(map((/**
         * @param {?} r
         * @return {?}
         */
        (r) => res[k] = r)));
        if (k === PRIMARY_OUTLET) {
            waitHead.push(mapped);
        }
        else {
            waitTail.push(mapped);
        }
    }));
    // Closure compiler has problem with using spread operator here. So just using Array.concat.
    return of.apply(null, waitHead.concat(waitTail)).pipe(concatAll(), last$1(), map((/**
     * @return {?}
     */
    () => res)));
}
/**
 * @template T
 * @param {?} value
 * @return {?}
 */
function wrapIntoObservable(value) {
    if (ɵisObservable(value)) {
        return value;
    }
    if (ɵisPromise(value)) {
        // Use `Promise.resolve()` to wrap promise-like instances.
        // Required ie when a Resolver returns a AngularJS `$q` promise to correctly trigger the
        // change detection.
        return from(Promise.resolve(value));
    }
    return of(value);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @return {?}
 */
function createEmptyUrlTree() {
    return new UrlTree(new UrlSegmentGroup([], {}), {}, null);
}
/**
 * @param {?} container
 * @param {?} containee
 * @param {?} exact
 * @return {?}
 */
function containsTree(container, containee, exact) {
    if (exact) {
        return equalQueryParams(container.queryParams, containee.queryParams) &&
            equalSegmentGroups(container.root, containee.root);
    }
    return containsQueryParams(container.queryParams, containee.queryParams) &&
        containsSegmentGroup(container.root, containee.root);
}
/**
 * @param {?} container
 * @param {?} containee
 * @return {?}
 */
function equalQueryParams(container, containee) {
    // TODO: This does not handle array params correctly.
    return shallowEqual(container, containee);
}
/**
 * @param {?} container
 * @param {?} containee
 * @return {?}
 */
function equalSegmentGroups(container, containee) {
    if (!equalPath(container.segments, containee.segments))
        return false;
    if (container.numberOfChildren !== containee.numberOfChildren)
        return false;
    for (const c in containee.children) {
        if (!container.children[c])
            return false;
        if (!equalSegmentGroups(container.children[c], containee.children[c]))
            return false;
    }
    return true;
}
/**
 * @param {?} container
 * @param {?} containee
 * @return {?}
 */
function containsQueryParams(container, containee) {
    // TODO: This does not handle array params correctly.
    return Object.keys(containee).length <= Object.keys(container).length &&
        Object.keys(containee).every((/**
         * @param {?} key
         * @return {?}
         */
        key => containee[key] === container[key]));
}
/**
 * @param {?} container
 * @param {?} containee
 * @return {?}
 */
function containsSegmentGroup(container, containee) {
    return containsSegmentGroupHelper(container, containee, containee.segments);
}
/**
 * @param {?} container
 * @param {?} containee
 * @param {?} containeePaths
 * @return {?}
 */
function containsSegmentGroupHelper(container, containee, containeePaths) {
    if (container.segments.length > containeePaths.length) {
        /** @type {?} */
        const current = container.segments.slice(0, containeePaths.length);
        if (!equalPath(current, containeePaths))
            return false;
        if (containee.hasChildren())
            return false;
        return true;
    }
    else if (container.segments.length === containeePaths.length) {
        if (!equalPath(container.segments, containeePaths))
            return false;
        for (const c in containee.children) {
            if (!container.children[c])
                return false;
            if (!containsSegmentGroup(container.children[c], containee.children[c]))
                return false;
        }
        return true;
    }
    else {
        /** @type {?} */
        const current = containeePaths.slice(0, container.segments.length);
        /** @type {?} */
        const next = containeePaths.slice(container.segments.length);
        if (!equalPath(container.segments, current))
            return false;
        if (!container.children[PRIMARY_OUTLET])
            return false;
        return containsSegmentGroupHelper(container.children[PRIMARY_OUTLET], containee, next);
    }
}
/**
 * \@description
 *
 * Represents the parsed URL.
 *
 * Since a router state is a tree, and the URL is nothing but a serialized state, the URL is a
 * serialized tree.
 * UrlTree is a data structure that provides a lot of affordances in dealing with URLs
 *
 * \@usageNotes
 * ### Example
 *
 * ```
 * \@Component({templateUrl:'template.html'})
 * class MyComponent {
 *   constructor(router: Router) {
 *     const tree: UrlTree =
 *       router.parseUrl('/team/33/(user/victor//support:help)?debug=true#fragment');
 *     const f = tree.fragment; // return 'fragment'
 *     const q = tree.queryParams; // returns {debug: 'true'}
 *     const g: UrlSegmentGroup = tree.root.children[PRIMARY_OUTLET];
 *     const s: UrlSegment[] = g.segments; // returns 2 segments 'team' and '33'
 *     g.children[PRIMARY_OUTLET].segments; // returns 2 segments 'user' and 'victor'
 *     g.children['support'].segments; // return 1 segment 'help'
 *   }
 * }
 * ```
 *
 * \@publicApi
 */
class UrlTree {
    /**
     * \@internal
     * @param {?} root
     * @param {?} queryParams
     * @param {?} fragment
     */
    constructor(root, queryParams, fragment) {
        this.root = root;
        this.queryParams = queryParams;
        this.fragment = fragment;
    }
    /**
     * @return {?}
     */
    get queryParamMap() {
        if (!this._queryParamMap) {
            this._queryParamMap = convertToParamMap(this.queryParams);
        }
        return this._queryParamMap;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() { return DEFAULT_SERIALIZER.serialize(this); }
}
/**
 * \@description
 *
 * Represents the parsed URL segment group.
 *
 * See `UrlTree` for more information.
 *
 * \@publicApi
 */
class UrlSegmentGroup {
    /**
     * @param {?} segments
     * @param {?} children
     */
    constructor(segments, children) {
        this.segments = segments;
        this.children = children;
        /**
         * The parent node in the url tree
         */
        this.parent = null;
        forEach(children, (/**
         * @template THIS
         * @this {THIS}
         * @param {?} v
         * @param {?} k
         * @return {THIS}
         */
        (v, k) => v.parent = this));
    }
    /**
     * Whether the segment has child segments
     * @return {?}
     */
    hasChildren() { return this.numberOfChildren > 0; }
    /**
     * Number of child segments
     * @return {?}
     */
    get numberOfChildren() { return Object.keys(this.children).length; }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() { return serializePaths(this); }
}
/**
 * \@description
 *
 * Represents a single URL segment.
 *
 * A UrlSegment is a part of a URL between the two slashes. It contains a path and the matrix
 * parameters associated with the segment.
 *
 * \@usageNotes
 *  ### Example
 *
 * ```
 * \@Component({templateUrl:'template.html'})
 * class MyComponent {
 *   constructor(router: Router) {
 *     const tree: UrlTree = router.parseUrl('/team;id=33');
 *     const g: UrlSegmentGroup = tree.root.children[PRIMARY_OUTLET];
 *     const s: UrlSegment[] = g.segments;
 *     s[0].path; // returns 'team'
 *     s[0].parameters; // returns {id: 33}
 *   }
 * }
 * ```
 *
 * \@publicApi
 */
class UrlSegment {
    /**
     * @param {?} path
     * @param {?} parameters
     */
    constructor(path, parameters) {
        this.path = path;
        this.parameters = parameters;
    }
    /**
     * @return {?}
     */
    get parameterMap() {
        if (!this._parameterMap) {
            this._parameterMap = convertToParamMap(this.parameters);
        }
        return this._parameterMap;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    toString() { return serializePath(this); }
}
/**
 * @param {?} as
 * @param {?} bs
 * @return {?}
 */
function equalSegments(as, bs) {
    return equalPath(as, bs) && as.every((/**
     * @param {?} a
     * @param {?} i
     * @return {?}
     */
    (a, i) => shallowEqual(a.parameters, bs[i].parameters)));
}
/**
 * @param {?} as
 * @param {?} bs
 * @return {?}
 */
function equalPath(as, bs) {
    if (as.length !== bs.length)
        return false;
    return as.every((/**
     * @param {?} a
     * @param {?} i
     * @return {?}
     */
    (a, i) => a.path === bs[i].path));
}
/**
 * @template T
 * @param {?} segment
 * @param {?} fn
 * @return {?}
 */
function mapChildrenIntoArray(segment, fn) {
    /** @type {?} */
    let res = [];
    forEach(segment.children, (/**
     * @param {?} child
     * @param {?} childOutlet
     * @return {?}
     */
    (child, childOutlet) => {
        if (childOutlet === PRIMARY_OUTLET) {
            res = res.concat(fn(child, childOutlet));
        }
    }));
    forEach(segment.children, (/**
     * @param {?} child
     * @param {?} childOutlet
     * @return {?}
     */
    (child, childOutlet) => {
        if (childOutlet !== PRIMARY_OUTLET) {
            res = res.concat(fn(child, childOutlet));
        }
    }));
    return res;
}
/**
 * \@description
 *
 * Serializes and deserializes a URL string into a URL tree.
 *
 * The url serialization strategy is customizable. You can
 * make all URLs case insensitive by providing a custom UrlSerializer.
 *
 * See `DefaultUrlSerializer` for an example of a URL serializer.
 *
 * \@publicApi
 * @abstract
 */
class UrlSerializer {
}
/**
 * \@description
 *
 * A default implementation of the `UrlSerializer`.
 *
 * Example URLs:
 *
 * ```
 * /inbox/33(popup:compose)
 * /inbox/33;open=true/messages/44
 * ```
 *
 * DefaultUrlSerializer uses parentheses to serialize secondary segments (e.g., popup:compose), the
 * colon syntax to specify the outlet, and the ';parameter=value' syntax (e.g., open=true) to
 * specify route specific parameters.
 *
 * \@publicApi
 */
class DefaultUrlSerializer {
    /**
     * Parses a url into a `UrlTree`
     * @param {?} url
     * @return {?}
     */
    parse(url) {
        /** @type {?} */
        const p = new UrlParser(url);
        return new UrlTree(p.parseRootSegment(), p.parseQueryParams(), p.parseFragment());
    }
    /**
     * Converts a `UrlTree` into a url
     * @param {?} tree
     * @return {?}
     */
    serialize(tree) {
        /** @type {?} */
        const segment = `/${serializeSegment(tree.root, true)}`;
        /** @type {?} */
        const query = serializeQueryParams(tree.queryParams);
        /** @type {?} */
        const fragment = typeof tree.fragment === `string` ? `#${encodeUriFragment((/** @type {?} */ (tree.fragment)))}` : '';
        return `${segment}${query}${fragment}`;
    }
}
/** @type {?} */
const DEFAULT_SERIALIZER = new DefaultUrlSerializer();
/**
 * @param {?} segment
 * @return {?}
 */
function serializePaths(segment) {
    return segment.segments.map((/**
     * @param {?} p
     * @return {?}
     */
    p => serializePath(p))).join('/');
}
/**
 * @param {?} segment
 * @param {?} root
 * @return {?}
 */
function serializeSegment(segment, root) {
    if (!segment.hasChildren()) {
        return serializePaths(segment);
    }
    if (root) {
        /** @type {?} */
        const primary = segment.children[PRIMARY_OUTLET] ?
            serializeSegment(segment.children[PRIMARY_OUTLET], false) :
            '';
        /** @type {?} */
        const children = [];
        forEach(segment.children, (/**
         * @param {?} v
         * @param {?} k
         * @return {?}
         */
        (v, k) => {
            if (k !== PRIMARY_OUTLET) {
                children.push(`${k}:${serializeSegment(v, false)}`);
            }
        }));
        return children.length > 0 ? `${primary}(${children.join('//')})` : primary;
    }
    else {
        /** @type {?} */
        const children = mapChildrenIntoArray(segment, (/**
         * @param {?} v
         * @param {?} k
         * @return {?}
         */
        (v, k) => {
            if (k === PRIMARY_OUTLET) {
                return [serializeSegment(segment.children[PRIMARY_OUTLET], false)];
            }
            return [`${k}:${serializeSegment(v, false)}`];
        }));
        return `${serializePaths(segment)}/(${children.join('//')})`;
    }
}
/**
 * Encodes a URI string with the default encoding. This function will only ever be called from
 * `encodeUriQuery` or `encodeUriSegment` as it's the base set of encodings to be used. We need
 * a custom encoding because encodeURIComponent is too aggressive and encodes stuff that doesn't
 * have to be encoded per https://url.spec.whatwg.org.
 * @param {?} s
 * @return {?}
 */
function encodeUriString(s) {
    return encodeURIComponent(s)
        .replace(/%40/g, '@')
        .replace(/%3A/gi, ':')
        .replace(/%24/g, '$')
        .replace(/%2C/gi, ',');
}
/**
 * This function should be used to encode both keys and values in a query string key/value. In
 * the following URL, you need to call encodeUriQuery on "k" and "v":
 *
 * http://www.site.org/html;mk=mv?k=v#f
 * @param {?} s
 * @return {?}
 */
function encodeUriQuery(s) {
    return encodeUriString(s).replace(/%3B/gi, ';');
}
/**
 * This function should be used to encode a URL fragment. In the following URL, you need to call
 * encodeUriFragment on "f":
 *
 * http://www.site.org/html;mk=mv?k=v#f
 * @param {?} s
 * @return {?}
 */
function encodeUriFragment(s) {
    return encodeURI(s);
}
/**
 * This function should be run on any URI segment as well as the key and value in a key/value
 * pair for matrix params. In the following URL, you need to call encodeUriSegment on "html",
 * "mk", and "mv":
 *
 * http://www.site.org/html;mk=mv?k=v#f
 * @param {?} s
 * @return {?}
 */
function encodeUriSegment(s) {
    return encodeUriString(s).replace(/\(/g, '%28').replace(/\)/g, '%29').replace(/%26/gi, '&');
}
/**
 * @param {?} s
 * @return {?}
 */
function decode(s) {
    return decodeURIComponent(s);
}
// Query keys/values should have the "+" replaced first, as "+" in a query string is " ".
// decodeURIComponent function will not decode "+" as a space.
/**
 * @param {?} s
 * @return {?}
 */
function decodeQuery(s) {
    return decode(s.replace(/\+/g, '%20'));
}
/**
 * @param {?} path
 * @return {?}
 */
function serializePath(path) {
    return `${encodeUriSegment(path.path)}${serializeMatrixParams(path.parameters)}`;
}
/**
 * @param {?} params
 * @return {?}
 */
function serializeMatrixParams(params) {
    return Object.keys(params)
        .map((/**
     * @param {?} key
     * @return {?}
     */
    key => `;${encodeUriSegment(key)}=${encodeUriSegment(params[key])}`))
        .join('');
}
/**
 * @param {?} params
 * @return {?}
 */
function serializeQueryParams(params) {
    /** @type {?} */
    const strParams = Object.keys(params).map((/**
     * @param {?} name
     * @return {?}
     */
    (name) => {
        /** @type {?} */
        const value = params[name];
        return Array.isArray(value) ?
            value.map((/**
             * @param {?} v
             * @return {?}
             */
            v => `${encodeUriQuery(name)}=${encodeUriQuery(v)}`)).join('&') :
            `${encodeUriQuery(name)}=${encodeUriQuery(value)}`;
    }));
    return strParams.length ? `?${strParams.join("&")}` : '';
}
/** @type {?} */
const SEGMENT_RE = /^[^\/()?;=#]+/;
/**
 * @param {?} str
 * @return {?}
 */
function matchSegments(str) {
    /** @type {?} */
    const match = str.match(SEGMENT_RE);
    return match ? match[0] : '';
}
/** @type {?} */
const QUERY_PARAM_RE = /^[^=?&#]+/;
// Return the name of the query param at the start of the string or an empty string
/**
 * @param {?} str
 * @return {?}
 */
function matchQueryParams(str) {
    /** @type {?} */
    const match = str.match(QUERY_PARAM_RE);
    return match ? match[0] : '';
}
/** @type {?} */
const QUERY_PARAM_VALUE_RE = /^[^?&#]+/;
// Return the value of the query param at the start of the string or an empty string
/**
 * @param {?} str
 * @return {?}
 */
function matchUrlQueryParamValue(str) {
    /** @type {?} */
    const match = str.match(QUERY_PARAM_VALUE_RE);
    return match ? match[0] : '';
}
class UrlParser {
    /**
     * @param {?} url
     */
    constructor(url) {
        this.url = url;
        this.remaining = url;
    }
    /**
     * @return {?}
     */
    parseRootSegment() {
        this.consumeOptional('/');
        if (this.remaining === '' || this.peekStartsWith('?') || this.peekStartsWith('#')) {
            return new UrlSegmentGroup([], {});
        }
        // The root segment group never has segments
        return new UrlSegmentGroup([], this.parseChildren());
    }
    /**
     * @return {?}
     */
    parseQueryParams() {
        /** @type {?} */
        const params = {};
        if (this.consumeOptional('?')) {
            do {
                this.parseQueryParam(params);
            } while (this.consumeOptional('&'));
        }
        return params;
    }
    /**
     * @return {?}
     */
    parseFragment() {
        return this.consumeOptional('#') ? decodeURIComponent(this.remaining) : null;
    }
    /**
     * @private
     * @return {?}
     */
    parseChildren() {
        if (this.remaining === '') {
            return {};
        }
        this.consumeOptional('/');
        /** @type {?} */
        const segments = [];
        if (!this.peekStartsWith('(')) {
            segments.push(this.parseSegment());
        }
        while (this.peekStartsWith('/') && !this.peekStartsWith('//') && !this.peekStartsWith('/(')) {
            this.capture('/');
            segments.push(this.parseSegment());
        }
        /** @type {?} */
        let children = {};
        if (this.peekStartsWith('/(')) {
            this.capture('/');
            children = this.parseParens(true);
        }
        /** @type {?} */
        let res = {};
        if (this.peekStartsWith('(')) {
            res = this.parseParens(false);
        }
        if (segments.length > 0 || Object.keys(children).length > 0) {
            res[PRIMARY_OUTLET] = new UrlSegmentGroup(segments, children);
        }
        return res;
    }
    // parse a segment with its matrix parameters
    // ie `name;k1=v1;k2`
    /**
     * @private
     * @return {?}
     */
    parseSegment() {
        /** @type {?} */
        const path = matchSegments(this.remaining);
        if (path === '' && this.peekStartsWith(';')) {
            throw new Error(`Empty path url segment cannot have parameters: '${this.remaining}'.`);
        }
        this.capture(path);
        return new UrlSegment(decode(path), this.parseMatrixParams());
    }
    /**
     * @private
     * @return {?}
     */
    parseMatrixParams() {
        /** @type {?} */
        const params = {};
        while (this.consumeOptional(';')) {
            this.parseParam(params);
        }
        return params;
    }
    /**
     * @private
     * @param {?} params
     * @return {?}
     */
    parseParam(params) {
        /** @type {?} */
        const key = matchSegments(this.remaining);
        if (!key) {
            return;
        }
        this.capture(key);
        /** @type {?} */
        let value = '';
        if (this.consumeOptional('=')) {
            /** @type {?} */
            const valueMatch = matchSegments(this.remaining);
            if (valueMatch) {
                value = valueMatch;
                this.capture(value);
            }
        }
        params[decode(key)] = decode(value);
    }
    // Parse a single query parameter `name[=value]`
    /**
     * @private
     * @param {?} params
     * @return {?}
     */
    parseQueryParam(params) {
        /** @type {?} */
        const key = matchQueryParams(this.remaining);
        if (!key) {
            return;
        }
        this.capture(key);
        /** @type {?} */
        let value = '';
        if (this.consumeOptional('=')) {
            /** @type {?} */
            const valueMatch = matchUrlQueryParamValue(this.remaining);
            if (valueMatch) {
                value = valueMatch;
                this.capture(value);
            }
        }
        /** @type {?} */
        const decodedKey = decodeQuery(key);
        /** @type {?} */
        const decodedVal = decodeQuery(value);
        if (params.hasOwnProperty(decodedKey)) {
            // Append to existing values
            /** @type {?} */
            let currentVal = params[decodedKey];
            if (!Array.isArray(currentVal)) {
                currentVal = [currentVal];
                params[decodedKey] = currentVal;
            }
            currentVal.push(decodedVal);
        }
        else {
            // Create a new value
            params[decodedKey] = decodedVal;
        }
    }
    // parse `(a/b//outlet_name:c/d)`
    /**
     * @private
     * @param {?} allowPrimary
     * @return {?}
     */
    parseParens(allowPrimary) {
        /** @type {?} */
        const segments = {};
        this.capture('(');
        while (!this.consumeOptional(')') && this.remaining.length > 0) {
            /** @type {?} */
            const path = matchSegments(this.remaining);
            /** @type {?} */
            const next = this.remaining[path.length];
            // if is is not one of these characters, then the segment was unescaped
            // or the group was not closed
            if (next !== '/' && next !== ')' && next !== ';') {
                throw new Error(`Cannot parse url '${this.url}'`);
            }
            /** @type {?} */
            let outletName = (/** @type {?} */ (undefined));
            if (path.indexOf(':') > -1) {
                outletName = path.substr(0, path.indexOf(':'));
                this.capture(outletName);
                this.capture(':');
            }
            else if (allowPrimary) {
                outletName = PRIMARY_OUTLET;
            }
            /** @type {?} */
            const children = this.parseChildren();
            segments[outletName] = Object.keys(children).length === 1 ? children[PRIMARY_OUTLET] :
                new UrlSegmentGroup([], children);
            this.consumeOptional('//');
        }
        return segments;
    }
    /**
     * @private
     * @param {?} str
     * @return {?}
     */
    peekStartsWith(str) { return this.remaining.startsWith(str); }
    // Consumes the prefix when it is present and returns whether it has been consumed
    /**
     * @private
     * @param {?} str
     * @return {?}
     */
    consumeOptional(str) {
        if (this.peekStartsWith(str)) {
            this.remaining = this.remaining.substring(str.length);
            return true;
        }
        return false;
    }
    /**
     * @private
     * @param {?} str
     * @return {?}
     */
    capture(str) {
        if (!this.consumeOptional(str)) {
            throw new Error(`Expected "${str}".`);
        }
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * @template T
 */
class Tree {
    /**
     * @param {?} root
     */
    constructor(root) { this._root = root; }
    /**
     * @return {?}
     */
    get root() { return this._root.value; }
    /**
     * \@internal
     * @param {?} t
     * @return {?}
     */
    parent(t) {
        /** @type {?} */
        const p = this.pathFromRoot(t);
        return p.length > 1 ? p[p.length - 2] : null;
    }
    /**
     * \@internal
     * @param {?} t
     * @return {?}
     */
    children(t) {
        /** @type {?} */
        const n = findNode(t, this._root);
        return n ? n.children.map((/**
         * @param {?} t
         * @return {?}
         */
        t => t.value)) : [];
    }
    /**
     * \@internal
     * @param {?} t
     * @return {?}
     */
    firstChild(t) {
        /** @type {?} */
        const n = findNode(t, this._root);
        return n && n.children.length > 0 ? n.children[0].value : null;
    }
    /**
     * \@internal
     * @param {?} t
     * @return {?}
     */
    siblings(t) {
        /** @type {?} */
        const p = findPath(t, this._root);
        if (p.length < 2)
            return [];
        /** @type {?} */
        const c = p[p.length - 2].children.map((/**
         * @param {?} c
         * @return {?}
         */
        c => c.value));
        return c.filter((/**
         * @param {?} cc
         * @return {?}
         */
        cc => cc !== t));
    }
    /**
     * \@internal
     * @param {?} t
     * @return {?}
     */
    pathFromRoot(t) { return findPath(t, this._root).map((/**
     * @param {?} s
     * @return {?}
     */
    s => s.value)); }
}
// DFS for the node matching the value
/**
 * @template T
 * @param {?} value
 * @param {?} node
 * @return {?}
 */
function findNode(value, node) {
    if (value === node.value)
        return node;
    for (const child of node.children) {
        /** @type {?} */
        const node = findNode(value, child);
        if (node)
            return node;
    }
    return null;
}
// Return the path to the node with the given value using DFS
/**
 * @template T
 * @param {?} value
 * @param {?} node
 * @return {?}
 */
function findPath(value, node) {
    if (value === node.value)
        return [node];
    for (const child of node.children) {
        /** @type {?} */
        const path = findPath(value, child);
        if (path.length) {
            path.unshift(node);
            return path;
        }
    }
    return [];
}
/**
 * @template T
 */
class TreeNode {
    /**
     * @param {?} value
     * @param {?} children
     */
    constructor(value, children) {
        this.value = value;
        this.children = children;
    }
    /**
     * @return {?}
     */
    toString() { return `TreeNode(${this.value})`; }
}
// Return the list of T indexed by outlet name
/**
 * @template T
 * @param {?} node
 * @return {?}
 */
function nodeChildrenAsMap(node) {
    /** @type {?} */
    const map = {};
    if (node) {
        node.children.forEach((/**
         * @param {?} child
         * @return {?}
         */
        child => map[child.value.outlet] = child));
    }
    return map;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@description
 *
 * Represents the state of the router.
 *
 * RouterState is a tree of activated routes. Every node in this tree knows about the "consumed" URL
 * segments, the extracted parameters, and the resolved data.
 *
 * \@usageNotes
 * ### Example
 *
 * ```
 * \@Component({templateUrl:'template.html'})
 * class MyComponent {
 *   constructor(router: Router) {
 *     const state: RouterState = router.routerState;
 *     const root: ActivatedRoute = state.root;
 *     const child = root.firstChild;
 *     const id: Observable<string> = child.params.map(p => p.id);
 *     //...
 *   }
 * }
 * ```
 *
 * See `ActivatedRoute` for more information.
 *
 * \@publicApi
 */
class RouterState extends Tree {
    /**
     * \@internal
     * @param {?} root
     * @param {?} snapshot
     */
    constructor(root, snapshot) {
        super(root);
        this.snapshot = snapshot;
        setRouterState((/** @type {?} */ (this)), root);
    }
    /**
     * @return {?}
     */
    toString() { return this.snapshot.toString(); }
}
/**
 * @param {?} urlTree
 * @param {?} rootComponent
 * @return {?}
 */
function createEmptyState(urlTree, rootComponent) {
    /** @type {?} */
    const snapshot = createEmptyStateSnapshot(urlTree, rootComponent);
    /** @type {?} */
    const emptyUrl = new BehaviorSubject([new UrlSegment('', {})]);
    /** @type {?} */
    const emptyParams = new BehaviorSubject({});
    /** @type {?} */
    const emptyData = new BehaviorSubject({});
    /** @type {?} */
    const emptyQueryParams = new BehaviorSubject({});
    /** @type {?} */
    const fragment = new BehaviorSubject('');
    /** @type {?} */
    const activated = new ActivatedRoute(emptyUrl, emptyParams, emptyQueryParams, fragment, emptyData, PRIMARY_OUTLET, rootComponent, snapshot.root);
    activated.snapshot = snapshot.root;
    return new RouterState(new TreeNode(activated, []), snapshot);
}
/**
 * @param {?} urlTree
 * @param {?} rootComponent
 * @return {?}
 */
function createEmptyStateSnapshot(urlTree, rootComponent) {
    /** @type {?} */
    const emptyParams = {};
    /** @type {?} */
    const emptyData = {};
    /** @type {?} */
    const emptyQueryParams = {};
    /** @type {?} */
    const fragment = '';
    /** @type {?} */
    const activated = new ActivatedRouteSnapshot([], emptyParams, emptyQueryParams, fragment, emptyData, PRIMARY_OUTLET, rootComponent, null, urlTree.root, -1, {});
    return new RouterStateSnapshot('', new TreeNode(activated, []));
}
/**
 * \@description
 *
 * Contains the information about a route associated with a component loaded in an
 * outlet.  An `ActivatedRoute` can also be used to traverse the router state tree.
 *
 * {\@example router/activated-route/module.ts region="activated-route"
 *     header="activated-route.component.ts" linenums="false"}
 *
 * \@publicApi
 */
class ActivatedRoute {
    /**
     * \@internal
     * @param {?} url
     * @param {?} params
     * @param {?} queryParams
     * @param {?} fragment
     * @param {?} data
     * @param {?} outlet
     * @param {?} component
     * @param {?} futureSnapshot
     */
    constructor(url, params, queryParams, fragment, data, outlet, component, futureSnapshot) {
        this.url = url;
        this.params = params;
        this.queryParams = queryParams;
        this.fragment = fragment;
        this.data = data;
        this.outlet = outlet;
        this.component = component;
        this._futureSnapshot = futureSnapshot;
    }
    /**
     * The configuration used to match this route
     * @return {?}
     */
    get routeConfig() { return this._futureSnapshot.routeConfig; }
    /**
     * The root of the router state
     * @return {?}
     */
    get root() { return this._routerState.root; }
    /**
     * The parent of this route in the router state tree
     * @return {?}
     */
    get parent() { return this._routerState.parent(this); }
    /**
     * The first child of this route in the router state tree
     * @return {?}
     */
    get firstChild() { return this._routerState.firstChild(this); }
    /**
     * The children of this route in the router state tree
     * @return {?}
     */
    get children() { return this._routerState.children(this); }
    /**
     * The path from the root of the router state tree to this route
     * @return {?}
     */
    get pathFromRoot() { return this._routerState.pathFromRoot(this); }
    /**
     * @return {?}
     */
    get paramMap() {
        if (!this._paramMap) {
            this._paramMap = this.params.pipe(map((/**
             * @param {?} p
             * @return {?}
             */
            (p) => convertToParamMap(p))));
        }
        return this._paramMap;
    }
    /**
     * @return {?}
     */
    get queryParamMap() {
        if (!this._queryParamMap) {
            this._queryParamMap =
                this.queryParams.pipe(map((/**
                 * @param {?} p
                 * @return {?}
                 */
                (p) => convertToParamMap(p))));
        }
        return this._queryParamMap;
    }
    /**
     * @return {?}
     */
    toString() {
        return this.snapshot ? this.snapshot.toString() : `Future(${this._futureSnapshot})`;
    }
}
/**
 * Returns the inherited params, data, and resolve for a given route.
 * By default, this only inherits values up to the nearest path-less or component-less route.
 * \@internal
 * @param {?} route
 * @param {?=} paramsInheritanceStrategy
 * @return {?}
 */
function inheritedParamsDataResolve(route, paramsInheritanceStrategy = 'emptyOnly') {
    /** @type {?} */
    const pathFromRoot = route.pathFromRoot;
    /** @type {?} */
    let inheritingStartingFrom = 0;
    if (paramsInheritanceStrategy !== 'always') {
        inheritingStartingFrom = pathFromRoot.length - 1;
        while (inheritingStartingFrom >= 1) {
            /** @type {?} */
            const current = pathFromRoot[inheritingStartingFrom];
            /** @type {?} */
            const parent = pathFromRoot[inheritingStartingFrom - 1];
            // current route is an empty path => inherits its parent's params and data
            if (current.routeConfig && current.routeConfig.path === '') {
                inheritingStartingFrom--;
                // parent is componentless => current route should inherit its params and data
            }
            else if (!parent.component) {
                inheritingStartingFrom--;
            }
            else {
                break;
            }
        }
    }
    return flattenInherited(pathFromRoot.slice(inheritingStartingFrom));
}
/**
 * \@internal
 * @param {?} pathFromRoot
 * @return {?}
 */
function flattenInherited(pathFromRoot) {
    return pathFromRoot.reduce((/**
     * @param {?} res
     * @param {?} curr
     * @return {?}
     */
    (res, curr) => {
        /** @type {?} */
        const params = Object.assign({}, res.params, curr.params);
        /** @type {?} */
        const data = Object.assign({}, res.data, curr.data);
        /** @type {?} */
        const resolve = Object.assign({}, res.resolve, curr._resolvedData);
        return { params, data, resolve };
    }), (/** @type {?} */ ({ params: {}, data: {}, resolve: {} })));
}
/**
 * \@description
 *
 * Contains the information about a route associated with a component loaded in an
 * outlet at a particular moment in time. ActivatedRouteSnapshot can also be used to
 * traverse the router state tree.
 *
 * ```
 * \@Component({templateUrl:'./my-component.html'})
 * class MyComponent {
 *   constructor(route: ActivatedRoute) {
 *     const id: string = route.snapshot.params.id;
 *     const url: string = route.snapshot.url.join('');
 *     const user = route.snapshot.data.user;
 *   }
 * }
 * ```
 *
 * \@publicApi
 */
class ActivatedRouteSnapshot {
    /**
     * \@internal
     * @param {?} url
     * @param {?} params
     * @param {?} queryParams
     * @param {?} fragment
     * @param {?} data
     * @param {?} outlet
     * @param {?} component
     * @param {?} routeConfig
     * @param {?} urlSegment
     * @param {?} lastPathIndex
     * @param {?} resolve
     */
    constructor(url, params, queryParams, fragment, data, outlet, component, routeConfig, urlSegment, lastPathIndex, resolve) {
        this.url = url;
        this.params = params;
        this.queryParams = queryParams;
        this.fragment = fragment;
        this.data = data;
        this.outlet = outlet;
        this.component = component;
        this.routeConfig = routeConfig;
        this._urlSegment = urlSegment;
        this._lastPathIndex = lastPathIndex;
        this._resolve = resolve;
    }
    /**
     * The root of the router state
     * @return {?}
     */
    get root() { return this._routerState.root; }
    /**
     * The parent of this route in the router state tree
     * @return {?}
     */
    get parent() { return this._routerState.parent(this); }
    /**
     * The first child of this route in the router state tree
     * @return {?}
     */
    get firstChild() { return this._routerState.firstChild(this); }
    /**
     * The children of this route in the router state tree
     * @return {?}
     */
    get children() { return this._routerState.children(this); }
    /**
     * The path from the root of the router state tree to this route
     * @return {?}
     */
    get pathFromRoot() { return this._routerState.pathFromRoot(this); }
    /**
     * @return {?}
     */
    get paramMap() {
        if (!this._paramMap) {
            this._paramMap = convertToParamMap(this.params);
        }
        return this._paramMap;
    }
    /**
     * @return {?}
     */
    get queryParamMap() {
        if (!this._queryParamMap) {
            this._queryParamMap = convertToParamMap(this.queryParams);
        }
        return this._queryParamMap;
    }
    /**
     * @return {?}
     */
    toString() {
        /** @type {?} */
        const url = this.url.map((/**
         * @param {?} segment
         * @return {?}
         */
        segment => segment.toString())).join('/');
        /** @type {?} */
        const matched = this.routeConfig ? this.routeConfig.path : '';
        return `Route(url:'${url}', path:'${matched}')`;
    }
}
/**
 * \@description
 *
 * Represents the state of the router at a moment in time.
 *
 * This is a tree of activated route snapshots. Every node in this tree knows about
 * the "consumed" URL segments, the extracted parameters, and the resolved data.
 *
 * \@usageNotes
 * ### Example
 *
 * ```
 * \@Component({templateUrl:'template.html'})
 * class MyComponent {
 *   constructor(router: Router) {
 *     const state: RouterState = router.routerState;
 *     const snapshot: RouterStateSnapshot = state.snapshot;
 *     const root: ActivatedRouteSnapshot = snapshot.root;
 *     const child = root.firstChild;
 *     const id: Observable<string> = child.params.map(p => p.id);
 *     //...
 *   }
 * }
 * ```
 *
 * \@publicApi
 */
class RouterStateSnapshot extends Tree {
    /**
     * \@internal
     * @param {?} url
     * @param {?} root
     */
    constructor(url, root) {
        super(root);
        this.url = url;
        setRouterState((/** @type {?} */ (this)), root);
    }
    /**
     * @return {?}
     */
    toString() { return serializeNode(this._root); }
}
/**
 * @template U, T
 * @param {?} state
 * @param {?} node
 * @return {?}
 */
function setRouterState(state, node) {
    node.value._routerState = state;
    node.children.forEach((/**
     * @param {?} c
     * @return {?}
     */
    c => setRouterState(state, c)));
}
/**
 * @param {?} node
 * @return {?}
 */
function serializeNode(node) {
    /** @type {?} */
    const c = node.children.length > 0 ? ` { ${node.children.map(serializeNode).join(', ')} } ` : '';
    return `${node.value}${c}`;
}
/**
 * The expectation is that the activate route is created with the right set of parameters.
 * So we push new values into the observables only when they are not the initial values.
 * And we detect that by checking if the snapshot field is set.
 * @param {?} route
 * @return {?}
 */
function advanceActivatedRoute(route) {
    if (route.snapshot) {
        /** @type {?} */
        const currentSnapshot = route.snapshot;
        /** @type {?} */
        const nextSnapshot = route._futureSnapshot;
        route.snapshot = nextSnapshot;
        if (!shallowEqual(currentSnapshot.queryParams, nextSnapshot.queryParams)) {
            ((/** @type {?} */ (route.queryParams))).next(nextSnapshot.queryParams);
        }
        if (currentSnapshot.fragment !== nextSnapshot.fragment) {
            ((/** @type {?} */ (route.fragment))).next(nextSnapshot.fragment);
        }
        if (!shallowEqual(currentSnapshot.params, nextSnapshot.params)) {
            ((/** @type {?} */ (route.params))).next(nextSnapshot.params);
        }
        if (!shallowEqualArrays(currentSnapshot.url, nextSnapshot.url)) {
            ((/** @type {?} */ (route.url))).next(nextSnapshot.url);
        }
        if (!shallowEqual(currentSnapshot.data, nextSnapshot.data)) {
            ((/** @type {?} */ (route.data))).next(nextSnapshot.data);
        }
    }
    else {
        route.snapshot = route._futureSnapshot;
        // this is for resolved data
        ((/** @type {?} */ (route.data))).next(route._futureSnapshot.data);
    }
}
/**
 * @param {?} a
 * @param {?} b
 * @return {?}
 */
function equalParamsAndUrlSegments(a, b) {
    /** @type {?} */
    const equalUrlParams = shallowEqual(a.params, b.params) && equalSegments(a.url, b.url);
    /** @type {?} */
    const parentsMismatch = !a.parent !== !b.parent;
    return equalUrlParams && !parentsMismatch &&
        (!a.parent || equalParamsAndUrlSegments(a.parent, (/** @type {?} */ (b.parent))));
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} routeReuseStrategy
 * @param {?} curr
 * @param {?} prevState
 * @return {?}
 */
function createRouterState(routeReuseStrategy, curr, prevState) {
    /** @type {?} */
    const root = createNode(routeReuseStrategy, curr._root, prevState ? prevState._root : undefined);
    return new RouterState(root, curr);
}
/**
 * @param {?} routeReuseStrategy
 * @param {?} curr
 * @param {?=} prevState
 * @return {?}
 */
function createNode(routeReuseStrategy, curr, prevState) {
    // reuse an activated route that is currently displayed on the screen
    if (prevState && routeReuseStrategy.shouldReuseRoute(curr.value, prevState.value.snapshot)) {
        /** @type {?} */
        const value = prevState.value;
        value._futureSnapshot = curr.value;
        /** @type {?} */
        const children = createOrReuseChildren(routeReuseStrategy, curr, prevState);
        return new TreeNode(value, children);
        // retrieve an activated route that is used to be displayed, but is not currently displayed
    }
    else {
        /** @type {?} */
        const detachedRouteHandle = (/** @type {?} */ (routeReuseStrategy.retrieve(curr.value)));
        if (detachedRouteHandle) {
            /** @type {?} */
            const tree = detachedRouteHandle.route;
            setFutureSnapshotsOfActivatedRoutes(curr, tree);
            return tree;
        }
        else {
            /** @type {?} */
            const value = createActivatedRoute(curr.value);
            /** @type {?} */
            const children = curr.children.map((/**
             * @param {?} c
             * @return {?}
             */
            c => createNode(routeReuseStrategy, c)));
            return new TreeNode(value, children);
        }
    }
}
/**
 * @param {?} curr
 * @param {?} result
 * @return {?}
 */
function setFutureSnapshotsOfActivatedRoutes(curr, result) {
    if (curr.value.routeConfig !== result.value.routeConfig) {
        throw new Error('Cannot reattach ActivatedRouteSnapshot created from a different route');
    }
    if (curr.children.length !== result.children.length) {
        throw new Error('Cannot reattach ActivatedRouteSnapshot with a different number of children');
    }
    result.value._futureSnapshot = curr.value;
    for (let i = 0; i < curr.children.length; ++i) {
        setFutureSnapshotsOfActivatedRoutes(curr.children[i], result.children[i]);
    }
}
/**
 * @param {?} routeReuseStrategy
 * @param {?} curr
 * @param {?} prevState
 * @return {?}
 */
function createOrReuseChildren(routeReuseStrategy, curr, prevState) {
    return curr.children.map((/**
     * @param {?} child
     * @return {?}
     */
    child => {
        for (const p of prevState.children) {
            if (routeReuseStrategy.shouldReuseRoute(p.value.snapshot, child.value)) {
                return createNode(routeReuseStrategy, child, p);
            }
        }
        return createNode(routeReuseStrategy, child);
    }));
}
/**
 * @param {?} c
 * @return {?}
 */
function createActivatedRoute(c) {
    return new ActivatedRoute(new BehaviorSubject(c.url), new BehaviorSubject(c.params), new BehaviorSubject(c.queryParams), new BehaviorSubject(c.fragment), new BehaviorSubject(c.data), c.outlet, c.component, c);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} route
 * @param {?} urlTree
 * @param {?} commands
 * @param {?} queryParams
 * @param {?} fragment
 * @return {?}
 */
function createUrlTree(route, urlTree, commands, queryParams, fragment) {
    if (commands.length === 0) {
        return tree(urlTree.root, urlTree.root, urlTree, queryParams, fragment);
    }
    /** @type {?} */
    const nav = computeNavigation(commands);
    if (nav.toRoot()) {
        return tree(urlTree.root, new UrlSegmentGroup([], {}), urlTree, queryParams, fragment);
    }
    /** @type {?} */
    const startingPosition = findStartingPosition(nav, urlTree, route);
    /** @type {?} */
    const segmentGroup = startingPosition.processChildren ?
        updateSegmentGroupChildren(startingPosition.segmentGroup, startingPosition.index, nav.commands) :
        updateSegmentGroup(startingPosition.segmentGroup, startingPosition.index, nav.commands);
    return tree(startingPosition.segmentGroup, segmentGroup, urlTree, queryParams, fragment);
}
/**
 * @param {?} command
 * @return {?}
 */
function isMatrixParams(command) {
    return typeof command === 'object' && command != null && !command.outlets && !command.segmentPath;
}
/**
 * @param {?} oldSegmentGroup
 * @param {?} newSegmentGroup
 * @param {?} urlTree
 * @param {?} queryParams
 * @param {?} fragment
 * @return {?}
 */
function tree(oldSegmentGroup, newSegmentGroup, urlTree, queryParams, fragment) {
    /** @type {?} */
    let qp = {};
    if (queryParams) {
        forEach(queryParams, (/**
         * @param {?} value
         * @param {?} name
         * @return {?}
         */
        (value, name) => {
            qp[name] = Array.isArray(value) ? value.map((/**
             * @param {?} v
             * @return {?}
             */
            (v) => `${v}`)) : `${value}`;
        }));
    }
    if (urlTree.root === oldSegmentGroup) {
        return new UrlTree(newSegmentGroup, qp, fragment);
    }
    return new UrlTree(replaceSegment(urlTree.root, oldSegmentGroup, newSegmentGroup), qp, fragment);
}
/**
 * @param {?} current
 * @param {?} oldSegment
 * @param {?} newSegment
 * @return {?}
 */
function replaceSegment(current, oldSegment, newSegment) {
    /** @type {?} */
    const children = {};
    forEach(current.children, (/**
     * @param {?} c
     * @param {?} outletName
     * @return {?}
     */
    (c, outletName) => {
        if (c === oldSegment) {
            children[outletName] = newSegment;
        }
        else {
            children[outletName] = replaceSegment(c, oldSegment, newSegment);
        }
    }));
    return new UrlSegmentGroup(current.segments, children);
}
class Navigation {
    /**
     * @param {?} isAbsolute
     * @param {?} numberOfDoubleDots
     * @param {?} commands
     */
    constructor(isAbsolute, numberOfDoubleDots, commands) {
        this.isAbsolute = isAbsolute;
        this.numberOfDoubleDots = numberOfDoubleDots;
        this.commands = commands;
        if (isAbsolute && commands.length > 0 && isMatrixParams(commands[0])) {
            throw new Error('Root segment cannot have matrix parameters');
        }
        /** @type {?} */
        const cmdWithOutlet = commands.find((/**
         * @param {?} c
         * @return {?}
         */
        c => typeof c === 'object' && c != null && c.outlets));
        if (cmdWithOutlet && cmdWithOutlet !== last(commands)) {
            throw new Error('{outlets:{}} has to be the last command');
        }
    }
    /**
     * @return {?}
     */
    toRoot() {
        return this.isAbsolute && this.commands.length === 1 && this.commands[0] == '/';
    }
}
/**
 * Transforms commands to a normalized `Navigation`
 * @param {?} commands
 * @return {?}
 */
function computeNavigation(commands) {
    if ((typeof commands[0] === 'string') && commands.length === 1 && commands[0] === '/') {
        return new Navigation(true, 0, commands);
    }
    /** @type {?} */
    let numberOfDoubleDots = 0;
    /** @type {?} */
    let isAbsolute = false;
    /** @type {?} */
    const res = commands.reduce((/**
     * @param {?} res
     * @param {?} cmd
     * @param {?} cmdIdx
     * @return {?}
     */
    (res, cmd, cmdIdx) => {
        if (typeof cmd === 'object' && cmd != null) {
            if (cmd.outlets) {
                /** @type {?} */
                const outlets = {};
                forEach(cmd.outlets, (/**
                 * @param {?} commands
                 * @param {?} name
                 * @return {?}
                 */
                (commands, name) => {
                    outlets[name] = typeof commands === 'string' ? commands.split('/') : commands;
                }));
                return [...res, { outlets }];
            }
            if (cmd.segmentPath) {
                return [...res, cmd.segmentPath];
            }
        }
        if (!(typeof cmd === 'string')) {
            return [...res, cmd];
        }
        if (cmdIdx === 0) {
            cmd.split('/').forEach((/**
             * @param {?} urlPart
             * @param {?} partIndex
             * @return {?}
             */
            (urlPart, partIndex) => {
                if (partIndex == 0 && urlPart === '.') ;
                else if (partIndex == 0 && urlPart === '') { //  '/a'
                    isAbsolute = true;
                }
                else if (urlPart === '..') { //  '../a'
                    numberOfDoubleDots++;
                }
                else if (urlPart != '') {
                    res.push(urlPart);
                }
            }));
            return res;
        }
        return [...res, cmd];
    }), []);
    return new Navigation(isAbsolute, numberOfDoubleDots, res);
}
class Position {
    /**
     * @param {?} segmentGroup
     * @param {?} processChildren
     * @param {?} index
     */
    constructor(segmentGroup, processChildren, index) {
        this.segmentGroup = segmentGroup;
        this.processChildren = processChildren;
        this.index = index;
    }
}
/**
 * @param {?} nav
 * @param {?} tree
 * @param {?} route
 * @return {?}
 */
function findStartingPosition(nav, tree, route) {
    if (nav.isAbsolute) {
        return new Position(tree.root, true, 0);
    }
    if (route.snapshot._lastPathIndex === -1) {
        return new Position(route.snapshot._urlSegment, true, 0);
    }
    /** @type {?} */
    const modifier = isMatrixParams(nav.commands[0]) ? 0 : 1;
    /** @type {?} */
    const index = route.snapshot._lastPathIndex + modifier;
    return createPositionApplyingDoubleDots(route.snapshot._urlSegment, index, nav.numberOfDoubleDots);
}
/**
 * @param {?} group
 * @param {?} index
 * @param {?} numberOfDoubleDots
 * @return {?}
 */
function createPositionApplyingDoubleDots(group, index, numberOfDoubleDots) {
    /** @type {?} */
    let g = group;
    /** @type {?} */
    let ci = index;
    /** @type {?} */
    let dd = numberOfDoubleDots;
    while (dd > ci) {
        dd -= ci;
        g = (/** @type {?} */ (g.parent));
        if (!g) {
            throw new Error('Invalid number of \'../\'');
        }
        ci = g.segments.length;
    }
    return new Position(g, false, ci - dd);
}
/**
 * @param {?} command
 * @return {?}
 */
function getPath(command) {
    if (typeof command === 'object' && command != null && command.outlets) {
        return command.outlets[PRIMARY_OUTLET];
    }
    return `${command}`;
}
/**
 * @param {?} commands
 * @return {?}
 */
function getOutlets(commands) {
    if (!(typeof commands[0] === 'object'))
        return { [PRIMARY_OUTLET]: commands };
    if (commands[0].outlets === undefined)
        return { [PRIMARY_OUTLET]: commands };
    return commands[0].outlets;
}
/**
 * @param {?} segmentGroup
 * @param {?} startIndex
 * @param {?} commands
 * @return {?}
 */
function updateSegmentGroup(segmentGroup, startIndex, commands) {
    if (!segmentGroup) {
        segmentGroup = new UrlSegmentGroup([], {});
    }
    if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {
        return updateSegmentGroupChildren(segmentGroup, startIndex, commands);
    }
    /** @type {?} */
    const m = prefixedWith(segmentGroup, startIndex, commands);
    /** @type {?} */
    const slicedCommands = commands.slice(m.commandIndex);
    if (m.match && m.pathIndex < segmentGroup.segments.length) {
        /** @type {?} */
        const g = new UrlSegmentGroup(segmentGroup.segments.slice(0, m.pathIndex), {});
        g.children[PRIMARY_OUTLET] =
            new UrlSegmentGroup(segmentGroup.segments.slice(m.pathIndex), segmentGroup.children);
        return updateSegmentGroupChildren(g, 0, slicedCommands);
    }
    else if (m.match && slicedCommands.length === 0) {
        return new UrlSegmentGroup(segmentGroup.segments, {});
    }
    else if (m.match && !segmentGroup.hasChildren()) {
        return createNewSegmentGroup(segmentGroup, startIndex, commands);
    }
    else if (m.match) {
        return updateSegmentGroupChildren(segmentGroup, 0, slicedCommands);
    }
    else {
        return createNewSegmentGroup(segmentGroup, startIndex, commands);
    }
}
/**
 * @param {?} segmentGroup
 * @param {?} startIndex
 * @param {?} commands
 * @return {?}
 */
function updateSegmentGroupChildren(segmentGroup, startIndex, commands) {
    if (commands.length === 0) {
        return new UrlSegmentGroup(segmentGroup.segments, {});
    }
    else {
        /** @type {?} */
        const outlets = getOutlets(commands);
        /** @type {?} */
        const children = {};
        forEach(outlets, (/**
         * @param {?} commands
         * @param {?} outlet
         * @return {?}
         */
        (commands, outlet) => {
            if (commands !== null) {
                children[outlet] = updateSegmentGroup(segmentGroup.children[outlet], startIndex, commands);
            }
        }));
        forEach(segmentGroup.children, (/**
         * @param {?} child
         * @param {?} childOutlet
         * @return {?}
         */
        (child, childOutlet) => {
            if (outlets[childOutlet] === undefined) {
                children[childOutlet] = child;
            }
        }));
        return new UrlSegmentGroup(segmentGroup.segments, children);
    }
}
/**
 * @param {?} segmentGroup
 * @param {?} startIndex
 * @param {?} commands
 * @return {?}
 */
function prefixedWith(segmentGroup, startIndex, commands) {
    /** @type {?} */
    let currentCommandIndex = 0;
    /** @type {?} */
    let currentPathIndex = startIndex;
    /** @type {?} */
    const noMatch = { match: false, pathIndex: 0, commandIndex: 0 };
    while (currentPathIndex < segmentGroup.segments.length) {
        if (currentCommandIndex >= commands.length)
            return noMatch;
        /** @type {?} */
        const path = segmentGroup.segments[currentPathIndex];
        /** @type {?} */
        const curr = getPath(commands[currentCommandIndex]);
        /** @type {?} */
        const next = currentCommandIndex < commands.length - 1 ? commands[currentCommandIndex + 1] : null;
        if (currentPathIndex > 0 && curr === undefined)
            break;
        if (curr && next && (typeof next === 'object') && next.outlets === undefined) {
            if (!compare(curr, next, path))
                return noMatch;
            currentCommandIndex += 2;
        }
        else {
            if (!compare(curr, {}, path))
                return noMatch;
            currentCommandIndex++;
        }
        currentPathIndex++;
    }
    return { match: true, pathIndex: currentPathIndex, commandIndex: currentCommandIndex };
}
/**
 * @param {?} segmentGroup
 * @param {?} startIndex
 * @param {?} commands
 * @return {?}
 */
function createNewSegmentGroup(segmentGroup, startIndex, commands) {
    /** @type {?} */
    const paths = segmentGroup.segments.slice(0, startIndex);
    /** @type {?} */
    let i = 0;
    while (i < commands.length) {
        if (typeof commands[i] === 'object' && commands[i].outlets !== undefined) {
            /** @type {?} */
            const children = createNewSegmentChildren(commands[i].outlets);
            return new UrlSegmentGroup(paths, children);
        }
        // if we start with an object literal, we need to reuse the path part from the segment
        if (i === 0 && isMatrixParams(commands[0])) {
            /** @type {?} */
            const p = segmentGroup.segments[startIndex];
            paths.push(new UrlSegment(p.path, commands[0]));
            i++;
            continue;
        }
        /** @type {?} */
        const curr = getPath(commands[i]);
        /** @type {?} */
        const next = (i < commands.length - 1) ? commands[i + 1] : null;
        if (curr && next && isMatrixParams(next)) {
            paths.push(new UrlSegment(curr, stringify(next)));
            i += 2;
        }
        else {
            paths.push(new UrlSegment(curr, {}));
            i++;
        }
    }
    return new UrlSegmentGroup(paths, {});
}
/**
 * @param {?} outlets
 * @return {?}
 */
function createNewSegmentChildren(outlets) {
    /** @type {?} */
    const children = {};
    forEach(outlets, (/**
     * @param {?} commands
     * @param {?} outlet
     * @return {?}
     */
    (commands, outlet) => {
        if (commands !== null) {
            children[outlet] = createNewSegmentGroup(new UrlSegmentGroup([], {}), 0, commands);
        }
    }));
    return children;
}
/**
 * @param {?} params
 * @return {?}
 */
function stringify(params) {
    /** @type {?} */
    const res = {};
    forEach(params, (/**
     * @param {?} v
     * @param {?} k
     * @return {?}
     */
    (v, k) => res[k] = `${v}`));
    return res;
}
/**
 * @param {?} path
 * @param {?} params
 * @param {?} segment
 * @return {?}
 */
function compare(path, params, segment) {
    return path == segment.path && shallowEqual(params, segment.parameters);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/** @type {?} */
const activateRoutes = (/**
 * @param {?} rootContexts
 * @param {?} routeReuseStrategy
 * @param {?} forwardEvent
 * @return {?}
 */
(rootContexts, routeReuseStrategy, forwardEvent) => map((/**
 * @param {?} t
 * @return {?}
 */
t => {
    new ActivateRoutes(routeReuseStrategy, (/** @type {?} */ (t.targetRouterState)), t.currentRouterState, forwardEvent)
        .activate(rootContexts);
    return t;
})));
class ActivateRoutes {
    /**
     * @param {?} routeReuseStrategy
     * @param {?} futureState
     * @param {?} currState
     * @param {?} forwardEvent
     */
    constructor(routeReuseStrategy, futureState, currState, forwardEvent) {
        this.routeReuseStrategy = routeReuseStrategy;
        this.futureState = futureState;
        this.currState = currState;
        this.forwardEvent = forwardEvent;
    }
    /**
     * @param {?} parentContexts
     * @return {?}
     */
    activate(parentContexts) {
        /** @type {?} */
        const futureRoot = this.futureState._root;
        /** @type {?} */
        const currRoot = this.currState ? this.currState._root : null;
        this.deactivateChildRoutes(futureRoot, currRoot, parentContexts);
        advanceActivatedRoute(this.futureState.root);
        this.activateChildRoutes(futureRoot, currRoot, parentContexts);
    }
    // De-activate the child route that are not re-used for the future state
    /**
     * @private
     * @param {?} futureNode
     * @param {?} currNode
     * @param {?} contexts
     * @return {?}
     */
    deactivateChildRoutes(futureNode, currNode, contexts) {
        /** @type {?} */
        const children = nodeChildrenAsMap(currNode);
        // Recurse on the routes active in the future state to de-activate deeper children
        futureNode.children.forEach((/**
         * @param {?} futureChild
         * @return {?}
         */
        futureChild => {
            /** @type {?} */
            const childOutletName = futureChild.value.outlet;
            this.deactivateRoutes(futureChild, children[childOutletName], contexts);
            delete children[childOutletName];
        }));
        // De-activate the routes that will not be re-used
        forEach(children, (/**
         * @param {?} v
         * @param {?} childName
         * @return {?}
         */
        (v, childName) => {
            this.deactivateRouteAndItsChildren(v, contexts);
        }));
    }
    /**
     * @private
     * @param {?} futureNode
     * @param {?} currNode
     * @param {?} parentContext
     * @return {?}
     */
    deactivateRoutes(futureNode, currNode, parentContext) {
        /** @type {?} */
        const future = futureNode.value;
        /** @type {?} */
        const curr = currNode ? currNode.value : null;
        if (future === curr) {
            // Reusing the node, check to see if the children need to be de-activated
            if (future.component) {
                // If we have a normal route, we need to go through an outlet.
                /** @type {?} */
                const context = parentContext.getContext(future.outlet);
                if (context) {
                    this.deactivateChildRoutes(futureNode, currNode, context.children);
                }
            }
            else {
                // if we have a componentless route, we recurse but keep the same outlet map.
                this.deactivateChildRoutes(futureNode, currNode, parentContext);
            }
        }
        else {
            if (curr) {
                // Deactivate the current route which will not be re-used
                this.deactivateRouteAndItsChildren(currNode, parentContext);
            }
        }
    }
    /**
     * @private
     * @param {?} route
     * @param {?} parentContexts
     * @return {?}
     */
    deactivateRouteAndItsChildren(route, parentContexts) {
        if (this.routeReuseStrategy.shouldDetach(route.value.snapshot)) {
            this.detachAndStoreRouteSubtree(route, parentContexts);
        }
        else {
            this.deactivateRouteAndOutlet(route, parentContexts);
        }
    }
    /**
     * @private
     * @param {?} route
     * @param {?} parentContexts
     * @return {?}
     */
    detachAndStoreRouteSubtree(route, parentContexts) {
        /** @type {?} */
        const context = parentContexts.getContext(route.value.outlet);
        if (context && context.outlet) {
            /** @type {?} */
            const componentRef = context.outlet.detach();
            /** @type {?} */
            const contexts = context.children.onOutletDeactivated();
            this.routeReuseStrategy.store(route.value.snapshot, { componentRef, route, contexts });
        }
    }
    /**
     * @private
     * @param {?} route
     * @param {?} parentContexts
     * @return {?}
     */
    deactivateRouteAndOutlet(route, parentContexts) {
        /** @type {?} */
        const context = parentContexts.getContext(route.value.outlet);
        if (context) {
            /** @type {?} */
            const children = nodeChildrenAsMap(route);
            /** @type {?} */
            const contexts = route.value.component ? context.children : parentContexts;
            forEach(children, (/**
             * @param {?} v
             * @param {?} k
             * @return {?}
             */
            (v, k) => this.deactivateRouteAndItsChildren(v, contexts)));
            if (context.outlet) {
                // Destroy the component
                context.outlet.deactivate();
                // Destroy the contexts for all the outlets that were in the component
                context.children.onOutletDeactivated();
            }
        }
    }
    /**
     * @private
     * @param {?} futureNode
     * @param {?} currNode
     * @param {?} contexts
     * @return {?}
     */
    activateChildRoutes(futureNode, currNode, contexts) {
        /** @type {?} */
        const children = nodeChildrenAsMap(currNode);
        futureNode.children.forEach((/**
         * @param {?} c
         * @return {?}
         */
        c => {
            this.activateRoutes(c, children[c.value.outlet], contexts);
            this.forwardEvent(new ActivationEnd(c.value.snapshot));
        }));
        if (futureNode.children.length) {
            this.forwardEvent(new ChildActivationEnd(futureNode.value.snapshot));
        }
    }
    /**
     * @private
     * @param {?} futureNode
     * @param {?} currNode
     * @param {?} parentContexts
     * @return {?}
     */
    activateRoutes(futureNode, currNode, parentContexts) {
        /** @type {?} */
        const future = futureNode.value;
        /** @type {?} */
        const curr = currNode ? currNode.value : null;
        advanceActivatedRoute(future);
        // reusing the node
        if (future === curr) {
            if (future.component) {
                // If we have a normal route, we need to go through an outlet.
                /** @type {?} */
                const context = parentContexts.getOrCreateContext(future.outlet);
                this.activateChildRoutes(futureNode, currNode, context.children);
            }
            else {
                // if we have a componentless route, we recurse but keep the same outlet map.
                this.activateChildRoutes(futureNode, currNode, parentContexts);
            }
        }
        else {
            if (future.component) {
                // if we have a normal route, we need to place the component into the outlet and recurse.
                /** @type {?} */
                const context = parentContexts.getOrCreateContext(future.outlet);
                if (this.routeReuseStrategy.shouldAttach(future.snapshot)) {
                    /** @type {?} */
                    const stored = ((/** @type {?} */ (this.routeReuseStrategy.retrieve(future.snapshot))));
                    this.routeReuseStrategy.store(future.snapshot, null);
                    context.children.onOutletReAttached(stored.contexts);
                    context.attachRef = stored.componentRef;
                    context.route = stored.route.value;
                    if (context.outlet) {
                        // Attach right away when the outlet has already been instantiated
                        // Otherwise attach from `RouterOutlet.ngOnInit` when it is instantiated
                        context.outlet.attach(stored.componentRef, stored.route.value);
                    }
                    advanceActivatedRouteNodeAndItsChildren(stored.route);
                }
                else {
                    /** @type {?} */
                    const config = parentLoadedConfig(future.snapshot);
                    /** @type {?} */
                    const cmpFactoryResolver = config ? config.module.componentFactoryResolver : null;
                    context.attachRef = null;
                    context.route = future;
                    context.resolver = cmpFactoryResolver;
                    if (context.outlet) {
                        // Activate the outlet when it has already been instantiated
                        // Otherwise it will get activated from its `ngOnInit` when instantiated
                        context.outlet.activateWith(future, cmpFactoryResolver);
                    }
                    this.activateChildRoutes(futureNode, null, context.children);
                }
            }
            else {
                // if we have a componentless route, we recurse but keep the same outlet map.
                this.activateChildRoutes(futureNode, null, parentContexts);
            }
        }
    }
}
/**
 * @param {?} node
 * @return {?}
 */
function advanceActivatedRouteNodeAndItsChildren(node) {
    advanceActivatedRoute(node.value);
    node.children.forEach(advanceActivatedRouteNodeAndItsChildren);
}
/**
 * @param {?} snapshot
 * @return {?}
 */
function parentLoadedConfig(snapshot) {
    for (let s = snapshot.parent; s; s = s.parent) {
        /** @type {?} */
        const route = s.routeConfig;
        if (route && route._loadedConfig)
            return route._loadedConfig;
        if (route && route.component)
            return null;
    }
    return null;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Simple function check, but generic so type inference will flow. Example:
 *
 * function product(a: number, b: number) {
 *   return a * b;
 * }
 *
 * if (isFunction<product>(fn)) {
 *   return fn(1, 2);
 * } else {
 *   throw "Must provide the `product` function";
 * }
 * @template T
 * @param {?} v
 * @return {?}
 */
function isFunction(v) {
    return typeof v === 'function';
}
/**
 * @param {?} v
 * @return {?}
 */
function isBoolean(v) {
    return typeof v === 'boolean';
}
/**
 * @param {?} v
 * @return {?}
 */
function isUrlTree(v) {
    return v instanceof UrlTree;
}
/**
 * @param {?} guard
 * @return {?}
 */
function isCanLoad(guard) {
    return guard && isFunction(guard.canLoad);
}
/**
 * @param {?} guard
 * @return {?}
 */
function isCanActivate(guard) {
    return guard && isFunction(guard.canActivate);
}
/**
 * @param {?} guard
 * @return {?}
 */
function isCanActivateChild(guard) {
    return guard && isFunction(guard.canActivateChild);
}
/**
 * @template T
 * @param {?} guard
 * @return {?}
 */
function isCanDeactivate(guard) {
    return guard && isFunction(guard.canDeactivate);
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class NoMatch {
    /**
     * @param {?=} segmentGroup
     */
    constructor(segmentGroup) { this.segmentGroup = segmentGroup || null; }
}
class AbsoluteRedirect {
    /**
     * @param {?} urlTree
     */
    constructor(urlTree) {
        this.urlTree = urlTree;
    }
}
/**
 * @param {?} segmentGroup
 * @return {?}
 */
function noMatch(segmentGroup) {
    return new Observable((/**
     * @param {?} obs
     * @return {?}
     */
    (obs) => obs.error(new NoMatch(segmentGroup))));
}
/**
 * @param {?} newTree
 * @return {?}
 */
function absoluteRedirect(newTree) {
    return new Observable((/**
     * @param {?} obs
     * @return {?}
     */
    (obs) => obs.error(new AbsoluteRedirect(newTree))));
}
/**
 * @param {?} redirectTo
 * @return {?}
 */
function namedOutletsRedirect(redirectTo) {
    return new Observable((/**
     * @param {?} obs
     * @return {?}
     */
    (obs) => obs.error(new Error(`Only absolute redirects can have named outlets. redirectTo: '${redirectTo}'`))));
}
/**
 * @param {?} route
 * @return {?}
 */
function canLoadFails(route) {
    return new Observable((/**
     * @param {?} obs
     * @return {?}
     */
    (obs) => obs.error(navigationCancelingError(`Cannot load children because the guard of the route "path: '${route.path}'" returned false`))));
}
/**
 * Returns the `UrlTree` with the redirection applied.
 *
 * Lazy modules are loaded along the way.
 * @param {?} moduleInjector
 * @param {?} configLoader
 * @param {?} urlSerializer
 * @param {?} urlTree
 * @param {?} config
 * @return {?}
 */
function applyRedirects(moduleInjector, configLoader, urlSerializer, urlTree, config) {
    return new ApplyRedirects(moduleInjector, configLoader, urlSerializer, urlTree, config).apply();
}
class ApplyRedirects {
    /**
     * @param {?} moduleInjector
     * @param {?} configLoader
     * @param {?} urlSerializer
     * @param {?} urlTree
     * @param {?} config
     */
    constructor(moduleInjector, configLoader, urlSerializer, urlTree, config) {
        this.configLoader = configLoader;
        this.urlSerializer = urlSerializer;
        this.urlTree = urlTree;
        this.config = config;
        this.allowRedirects = true;
        this.ngModule = moduleInjector.get(NgModuleRef);
    }
    /**
     * @return {?}
     */
    apply() {
        /** @type {?} */
        const expanded$ = this.expandSegmentGroup(this.ngModule, this.config, this.urlTree.root, PRIMARY_OUTLET);
        /** @type {?} */
        const urlTrees$ = expanded$.pipe(map((/**
         * @param {?} rootSegmentGroup
         * @return {?}
         */
        (rootSegmentGroup) => this.createUrlTree(rootSegmentGroup, this.urlTree.queryParams, (/** @type {?} */ (this.urlTree.fragment))))));
        return urlTrees$.pipe(catchError((/**
         * @param {?} e
         * @return {?}
         */
        (e) => {
            if (e instanceof AbsoluteRedirect) {
                // after an absolute redirect we do not apply any more redirects!
                this.allowRedirects = false;
                // we need to run matching, so we can fetch all lazy-loaded modules
                return this.match(e.urlTree);
            }
            if (e instanceof NoMatch) {
                throw this.noMatchError(e);
            }
            throw e;
        })));
    }
    /**
     * @private
     * @param {?} tree
     * @return {?}
     */
    match(tree) {
        /** @type {?} */
        const expanded$ = this.expandSegmentGroup(this.ngModule, this.config, tree.root, PRIMARY_OUTLET);
        /** @type {?} */
        const mapped$ = expanded$.pipe(map((/**
         * @param {?} rootSegmentGroup
         * @return {?}
         */
        (rootSegmentGroup) => this.createUrlTree(rootSegmentGroup, tree.queryParams, (/** @type {?} */ (tree.fragment))))));
        return mapped$.pipe(catchError((/**
         * @param {?} e
         * @return {?}
         */
        (e) => {
            if (e instanceof NoMatch) {
                throw this.noMatchError(e);
            }
            throw e;
        })));
    }
    /**
     * @private
     * @param {?} e
     * @return {?}
     */
    noMatchError(e) {
        return new Error(`Cannot match any routes. URL Segment: '${e.segmentGroup}'`);
    }
    /**
     * @private
     * @param {?} rootCandidate
     * @param {?} queryParams
     * @param {?} fragment
     * @return {?}
     */
    createUrlTree(rootCandidate, queryParams, fragment) {
        /** @type {?} */
        const root = rootCandidate.segments.length > 0 ?
            new UrlSegmentGroup([], { [PRIMARY_OUTLET]: rootCandidate }) :
            rootCandidate;
        return new UrlTree(root, queryParams, fragment);
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} routes
     * @param {?} segmentGroup
     * @param {?} outlet
     * @return {?}
     */
    expandSegmentGroup(ngModule, routes, segmentGroup, outlet) {
        if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {
            return this.expandChildren(ngModule, routes, segmentGroup)
                .pipe(map((/**
             * @param {?} children
             * @return {?}
             */
            (children) => new UrlSegmentGroup([], children))));
        }
        return this.expandSegment(ngModule, segmentGroup, routes, segmentGroup.segments, outlet, true);
    }
    // Recursively expand segment groups for all the child outlets
    /**
     * @private
     * @param {?} ngModule
     * @param {?} routes
     * @param {?} segmentGroup
     * @return {?}
     */
    expandChildren(ngModule, routes, segmentGroup) {
        return waitForMap(segmentGroup.children, (/**
         * @param {?} childOutlet
         * @param {?} child
         * @return {?}
         */
        (childOutlet, child) => this.expandSegmentGroup(ngModule, routes, child, childOutlet)));
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} segmentGroup
     * @param {?} routes
     * @param {?} segments
     * @param {?} outlet
     * @param {?} allowRedirects
     * @return {?}
     */
    expandSegment(ngModule, segmentGroup, routes, segments, outlet, allowRedirects) {
        return of(...routes).pipe(map((/**
         * @param {?} r
         * @return {?}
         */
        (r) => {
            /** @type {?} */
            const expanded$ = this.expandSegmentAgainstRoute(ngModule, segmentGroup, routes, r, segments, outlet, allowRedirects);
            return expanded$.pipe(catchError((/**
             * @param {?} e
             * @return {?}
             */
            (e) => {
                if (e instanceof NoMatch) {
                    // TODO(i): this return type doesn't match the declared Observable<UrlSegmentGroup> -
                    // talk to Jason
                    return (/** @type {?} */ (of(null)));
                }
                throw e;
            })));
        })), concatAll(), first((/**
         * @param {?} s
         * @return {?}
         */
        (s) => !!s)), catchError((/**
         * @param {?} e
         * @param {?} _
         * @return {?}
         */
        (e, _) => {
            if (e instanceof EmptyError || e.name === 'EmptyError') {
                if (this.noLeftoversInUrl(segmentGroup, segments, outlet)) {
                    return of(new UrlSegmentGroup([], {}));
                }
                throw new NoMatch(segmentGroup);
            }
            throw e;
        })));
    }
    /**
     * @private
     * @param {?} segmentGroup
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    noLeftoversInUrl(segmentGroup, segments, outlet) {
        return segments.length === 0 && !segmentGroup.children[outlet];
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} segmentGroup
     * @param {?} routes
     * @param {?} route
     * @param {?} paths
     * @param {?} outlet
     * @param {?} allowRedirects
     * @return {?}
     */
    expandSegmentAgainstRoute(ngModule, segmentGroup, routes, route, paths, outlet, allowRedirects) {
        if (getOutlet(route) !== outlet) {
            return noMatch(segmentGroup);
        }
        if (route.redirectTo === undefined) {
            return this.matchSegmentAgainstRoute(ngModule, segmentGroup, route, paths);
        }
        if (allowRedirects && this.allowRedirects) {
            return this.expandSegmentAgainstRouteUsingRedirect(ngModule, segmentGroup, routes, route, paths, outlet);
        }
        return noMatch(segmentGroup);
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} segmentGroup
     * @param {?} routes
     * @param {?} route
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    expandSegmentAgainstRouteUsingRedirect(ngModule, segmentGroup, routes, route, segments, outlet) {
        if (route.path === '**') {
            return this.expandWildCardWithParamsAgainstRouteUsingRedirect(ngModule, routes, route, outlet);
        }
        return this.expandRegularSegmentAgainstRouteUsingRedirect(ngModule, segmentGroup, routes, route, segments, outlet);
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} routes
     * @param {?} route
     * @param {?} outlet
     * @return {?}
     */
    expandWildCardWithParamsAgainstRouteUsingRedirect(ngModule, routes, route, outlet) {
        /** @type {?} */
        const newTree = this.applyRedirectCommands([], (/** @type {?} */ (route.redirectTo)), {});
        if ((/** @type {?} */ (route.redirectTo)).startsWith('/')) {
            return absoluteRedirect(newTree);
        }
        return this.lineralizeSegments(route, newTree).pipe(mergeMap((/**
         * @param {?} newSegments
         * @return {?}
         */
        (newSegments) => {
            /** @type {?} */
            const group = new UrlSegmentGroup(newSegments, {});
            return this.expandSegment(ngModule, group, routes, newSegments, outlet, false);
        })));
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} segmentGroup
     * @param {?} routes
     * @param {?} route
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    expandRegularSegmentAgainstRouteUsingRedirect(ngModule, segmentGroup, routes, route, segments, outlet) {
        const { matched, consumedSegments, lastChild, positionalParamSegments } = match(segmentGroup, route, segments);
        if (!matched)
            return noMatch(segmentGroup);
        /** @type {?} */
        const newTree = this.applyRedirectCommands(consumedSegments, (/** @type {?} */ (route.redirectTo)), (/** @type {?} */ (positionalParamSegments)));
        if ((/** @type {?} */ (route.redirectTo)).startsWith('/')) {
            return absoluteRedirect(newTree);
        }
        return this.lineralizeSegments(route, newTree).pipe(mergeMap((/**
         * @param {?} newSegments
         * @return {?}
         */
        (newSegments) => {
            return this.expandSegment(ngModule, segmentGroup, routes, newSegments.concat(segments.slice(lastChild)), outlet, false);
        })));
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} rawSegmentGroup
     * @param {?} route
     * @param {?} segments
     * @return {?}
     */
    matchSegmentAgainstRoute(ngModule, rawSegmentGroup, route, segments) {
        if (route.path === '**') {
            if (route.loadChildren) {
                return this.configLoader.load(ngModule.injector, route)
                    .pipe(map((/**
                 * @param {?} cfg
                 * @return {?}
                 */
                (cfg) => {
                    route._loadedConfig = cfg;
                    return new UrlSegmentGroup(segments, {});
                })));
            }
            return of(new UrlSegmentGroup(segments, {}));
        }
        const { matched, consumedSegments, lastChild } = match(rawSegmentGroup, route, segments);
        if (!matched)
            return noMatch(rawSegmentGroup);
        /** @type {?} */
        const rawSlicedSegments = segments.slice(lastChild);
        /** @type {?} */
        const childConfig$ = this.getChildConfig(ngModule, route, segments);
        return childConfig$.pipe(mergeMap((/**
         * @param {?} routerConfig
         * @return {?}
         */
        (routerConfig) => {
            /** @type {?} */
            const childModule = routerConfig.module;
            /** @type {?} */
            const childConfig = routerConfig.routes;
            const { segmentGroup, slicedSegments } = split(rawSegmentGroup, consumedSegments, rawSlicedSegments, childConfig);
            if (slicedSegments.length === 0 && segmentGroup.hasChildren()) {
                /** @type {?} */
                const expanded$ = this.expandChildren(childModule, childConfig, segmentGroup);
                return expanded$.pipe(map((/**
                 * @param {?} children
                 * @return {?}
                 */
                (children) => new UrlSegmentGroup(consumedSegments, children))));
            }
            if (childConfig.length === 0 && slicedSegments.length === 0) {
                return of(new UrlSegmentGroup(consumedSegments, {}));
            }
            /** @type {?} */
            const expanded$ = this.expandSegment(childModule, segmentGroup, childConfig, slicedSegments, PRIMARY_OUTLET, true);
            return expanded$.pipe(map((/**
             * @param {?} cs
             * @return {?}
             */
            (cs) => new UrlSegmentGroup(consumedSegments.concat(cs.segments), cs.children))));
        })));
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} route
     * @param {?} segments
     * @return {?}
     */
    getChildConfig(ngModule, route, segments) {
        if (route.children) {
            // The children belong to the same module
            return of(new LoadedRouterConfig(route.children, ngModule));
        }
        if (route.loadChildren) {
            // lazy children belong to the loaded module
            if (route._loadedConfig !== undefined) {
                return of(route._loadedConfig);
            }
            return runCanLoadGuard(ngModule.injector, route, segments)
                .pipe(mergeMap((/**
             * @param {?} shouldLoad
             * @return {?}
             */
            (shouldLoad) => {
                if (shouldLoad) {
                    return this.configLoader.load(ngModule.injector, route)
                        .pipe(map((/**
                     * @param {?} cfg
                     * @return {?}
                     */
                    (cfg) => {
                        route._loadedConfig = cfg;
                        return cfg;
                    })));
                }
                return canLoadFails(route);
            })));
        }
        return of(new LoadedRouterConfig([], ngModule));
    }
    /**
     * @private
     * @param {?} route
     * @param {?} urlTree
     * @return {?}
     */
    lineralizeSegments(route, urlTree) {
        /** @type {?} */
        let res = [];
        /** @type {?} */
        let c = urlTree.root;
        while (true) {
            res = res.concat(c.segments);
            if (c.numberOfChildren === 0) {
                return of(res);
            }
            if (c.numberOfChildren > 1 || !c.children[PRIMARY_OUTLET]) {
                return namedOutletsRedirect((/** @type {?} */ (route.redirectTo)));
            }
            c = c.children[PRIMARY_OUTLET];
        }
    }
    /**
     * @private
     * @param {?} segments
     * @param {?} redirectTo
     * @param {?} posParams
     * @return {?}
     */
    applyRedirectCommands(segments, redirectTo, posParams) {
        return this.applyRedirectCreatreUrlTree(redirectTo, this.urlSerializer.parse(redirectTo), segments, posParams);
    }
    /**
     * @private
     * @param {?} redirectTo
     * @param {?} urlTree
     * @param {?} segments
     * @param {?} posParams
     * @return {?}
     */
    applyRedirectCreatreUrlTree(redirectTo, urlTree, segments, posParams) {
        /** @type {?} */
        const newRoot = this.createSegmentGroup(redirectTo, urlTree.root, segments, posParams);
        return new UrlTree(newRoot, this.createQueryParams(urlTree.queryParams, this.urlTree.queryParams), urlTree.fragment);
    }
    /**
     * @private
     * @param {?} redirectToParams
     * @param {?} actualParams
     * @return {?}
     */
    createQueryParams(redirectToParams, actualParams) {
        /** @type {?} */
        const res = {};
        forEach(redirectToParams, (/**
         * @param {?} v
         * @param {?} k
         * @return {?}
         */
        (v, k) => {
            /** @type {?} */
            const copySourceValue = typeof v === 'string' && v.startsWith(':');
            if (copySourceValue) {
                /** @type {?} */
                const sourceName = v.substring(1);
                res[k] = actualParams[sourceName];
            }
            else {
                res[k] = v;
            }
        }));
        return res;
    }
    /**
     * @private
     * @param {?} redirectTo
     * @param {?} group
     * @param {?} segments
     * @param {?} posParams
     * @return {?}
     */
    createSegmentGroup(redirectTo, group, segments, posParams) {
        /** @type {?} */
        const updatedSegments = this.createSegments(redirectTo, group.segments, segments, posParams);
        /** @type {?} */
        let children = {};
        forEach(group.children, (/**
         * @param {?} child
         * @param {?} name
         * @return {?}
         */
        (child, name) => {
            children[name] = this.createSegmentGroup(redirectTo, child, segments, posParams);
        }));
        return new UrlSegmentGroup(updatedSegments, children);
    }
    /**
     * @private
     * @param {?} redirectTo
     * @param {?} redirectToSegments
     * @param {?} actualSegments
     * @param {?} posParams
     * @return {?}
     */
    createSegments(redirectTo, redirectToSegments, actualSegments, posParams) {
        return redirectToSegments.map((/**
         * @param {?} s
         * @return {?}
         */
        s => s.path.startsWith(':') ? this.findPosParam(redirectTo, s, posParams) :
            this.findOrReturn(s, actualSegments)));
    }
    /**
     * @private
     * @param {?} redirectTo
     * @param {?} redirectToUrlSegment
     * @param {?} posParams
     * @return {?}
     */
    findPosParam(redirectTo, redirectToUrlSegment, posParams) {
        /** @type {?} */
        const pos = posParams[redirectToUrlSegment.path.substring(1)];
        if (!pos)
            throw new Error(`Cannot redirect to '${redirectTo}'. Cannot find '${redirectToUrlSegment.path}'.`);
        return pos;
    }
    /**
     * @private
     * @param {?} redirectToUrlSegment
     * @param {?} actualSegments
     * @return {?}
     */
    findOrReturn(redirectToUrlSegment, actualSegments) {
        /** @type {?} */
        let idx = 0;
        for (const s of actualSegments) {
            if (s.path === redirectToUrlSegment.path) {
                actualSegments.splice(idx);
                return s;
            }
            idx++;
        }
        return redirectToUrlSegment;
    }
}
/**
 * @param {?} moduleInjector
 * @param {?} route
 * @param {?} segments
 * @return {?}
 */
function runCanLoadGuard(moduleInjector, route, segments) {
    /** @type {?} */
    const canLoad = route.canLoad;
    if (!canLoad || canLoad.length === 0)
        return of(true);
    /** @type {?} */
    const obs = from(canLoad).pipe(map((/**
     * @param {?} injectionToken
     * @return {?}
     */
    (injectionToken) => {
        /** @type {?} */
        const guard = moduleInjector.get(injectionToken);
        /** @type {?} */
        let guardVal;
        if (isCanLoad(guard)) {
            guardVal = guard.canLoad(route, segments);
        }
        else if (isFunction(guard)) {
            guardVal = guard(route, segments);
        }
        else {
            throw new Error('Invalid CanLoad guard');
        }
        return wrapIntoObservable(guardVal);
    })));
    return obs.pipe(concatAll(), every((/**
     * @param {?} result
     * @return {?}
     */
    result => result === true)));
}
/**
 * @param {?} segmentGroup
 * @param {?} route
 * @param {?} segments
 * @return {?}
 */
function match(segmentGroup, route, segments) {
    if (route.path === '') {
        if ((route.pathMatch === 'full') && (segmentGroup.hasChildren() || segments.length > 0)) {
            return { matched: false, consumedSegments: [], lastChild: 0, positionalParamSegments: {} };
        }
        return { matched: true, consumedSegments: [], lastChild: 0, positionalParamSegments: {} };
    }
    /** @type {?} */
    const matcher = route.matcher || defaultUrlMatcher;
    /** @type {?} */
    const res = matcher(segments, segmentGroup, route);
    if (!res) {
        return {
            matched: false,
            consumedSegments: (/** @type {?} */ ([])),
            lastChild: 0,
            positionalParamSegments: {},
        };
    }
    return {
        matched: true,
        consumedSegments: (/** @type {?} */ (res.consumed)),
        lastChild: (/** @type {?} */ (res.consumed.length)),
        positionalParamSegments: (/** @type {?} */ (res.posParams)),
    };
}
/**
 * @param {?} segmentGroup
 * @param {?} consumedSegments
 * @param {?} slicedSegments
 * @param {?} config
 * @return {?}
 */
function split(segmentGroup, consumedSegments, slicedSegments, config) {
    if (slicedSegments.length > 0 &&
        containsEmptyPathRedirectsWithNamedOutlets(segmentGroup, slicedSegments, config)) {
        /** @type {?} */
        const s = new UrlSegmentGroup(consumedSegments, createChildrenForEmptySegments(config, new UrlSegmentGroup(slicedSegments, segmentGroup.children)));
        return { segmentGroup: mergeTrivialChildren(s), slicedSegments: [] };
    }
    if (slicedSegments.length === 0 &&
        containsEmptyPathRedirects(segmentGroup, slicedSegments, config)) {
        /** @type {?} */
        const s = new UrlSegmentGroup(segmentGroup.segments, addEmptySegmentsToChildrenIfNeeded(segmentGroup, slicedSegments, config, segmentGroup.children));
        return { segmentGroup: mergeTrivialChildren(s), slicedSegments };
    }
    return { segmentGroup, slicedSegments };
}
/**
 * @param {?} s
 * @return {?}
 */
function mergeTrivialChildren(s) {
    if (s.numberOfChildren === 1 && s.children[PRIMARY_OUTLET]) {
        /** @type {?} */
        const c = s.children[PRIMARY_OUTLET];
        return new UrlSegmentGroup(s.segments.concat(c.segments), c.children);
    }
    return s;
}
/**
 * @param {?} segmentGroup
 * @param {?} slicedSegments
 * @param {?} routes
 * @param {?} children
 * @return {?}
 */
function addEmptySegmentsToChildrenIfNeeded(segmentGroup, slicedSegments, routes, children) {
    /** @type {?} */
    const res = {};
    for (const r of routes) {
        if (isEmptyPathRedirect(segmentGroup, slicedSegments, r) && !children[getOutlet(r)]) {
            res[getOutlet(r)] = new UrlSegmentGroup([], {});
        }
    }
    return Object.assign({}, children, res);
}
/**
 * @param {?} routes
 * @param {?} primarySegmentGroup
 * @return {?}
 */
function createChildrenForEmptySegments(routes, primarySegmentGroup) {
    /** @type {?} */
    const res = {};
    res[PRIMARY_OUTLET] = primarySegmentGroup;
    for (const r of routes) {
        if (r.path === '' && getOutlet(r) !== PRIMARY_OUTLET) {
            res[getOutlet(r)] = new UrlSegmentGroup([], {});
        }
    }
    return res;
}
/**
 * @param {?} segmentGroup
 * @param {?} segments
 * @param {?} routes
 * @return {?}
 */
function containsEmptyPathRedirectsWithNamedOutlets(segmentGroup, segments, routes) {
    return routes.some((/**
     * @param {?} r
     * @return {?}
     */
    r => isEmptyPathRedirect(segmentGroup, segments, r) && getOutlet(r) !== PRIMARY_OUTLET));
}
/**
 * @param {?} segmentGroup
 * @param {?} segments
 * @param {?} routes
 * @return {?}
 */
function containsEmptyPathRedirects(segmentGroup, segments, routes) {
    return routes.some((/**
     * @param {?} r
     * @return {?}
     */
    r => isEmptyPathRedirect(segmentGroup, segments, r)));
}
/**
 * @param {?} segmentGroup
 * @param {?} segments
 * @param {?} r
 * @return {?}
 */
function isEmptyPathRedirect(segmentGroup, segments, r) {
    if ((segmentGroup.hasChildren() || segments.length > 0) && r.pathMatch === 'full') {
        return false;
    }
    return r.path === '' && r.redirectTo !== undefined;
}
/**
 * @param {?} route
 * @return {?}
 */
function getOutlet(route) {
    return route.outlet || PRIMARY_OUTLET;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} moduleInjector
 * @param {?} configLoader
 * @param {?} urlSerializer
 * @param {?} config
 * @return {?}
 */
function applyRedirects$1(moduleInjector, configLoader, urlSerializer, config) {
    return (/**
     * @param {?} source
     * @return {?}
     */
    function (source) {
        return source.pipe(switchMap((/**
         * @param {?} t
         * @return {?}
         */
        t => applyRedirects(moduleInjector, configLoader, urlSerializer, t.extractedUrl, config)
            .pipe(map((/**
         * @param {?} urlAfterRedirects
         * @return {?}
         */
        urlAfterRedirects => (Object.assign({}, t, { urlAfterRedirects }))))))));
    });
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class CanActivate {
    /**
     * @param {?} path
     */
    constructor(path) {
        this.path = path;
        this.route = this.path[this.path.length - 1];
    }
}
class CanDeactivate {
    /**
     * @param {?} component
     * @param {?} route
     */
    constructor(component, route) {
        this.component = component;
        this.route = route;
    }
}
/**
 * @param {?} future
 * @param {?} curr
 * @param {?} parentContexts
 * @return {?}
 */
function getAllRouteGuards(future, curr, parentContexts) {
    /** @type {?} */
    const futureRoot = future._root;
    /** @type {?} */
    const currRoot = curr ? curr._root : null;
    return getChildRouteGuards(futureRoot, currRoot, parentContexts, [futureRoot.value]);
}
/**
 * @param {?} p
 * @return {?}
 */
function getCanActivateChild(p) {
    /** @type {?} */
    const canActivateChild = p.routeConfig ? p.routeConfig.canActivateChild : null;
    if (!canActivateChild || canActivateChild.length === 0)
        return null;
    return { node: p, guards: canActivateChild };
}
/**
 * @param {?} token
 * @param {?} snapshot
 * @param {?} moduleInjector
 * @return {?}
 */
function getToken(token, snapshot, moduleInjector) {
    /** @type {?} */
    const config = getClosestLoadedConfig(snapshot);
    /** @type {?} */
    const injector = config ? config.module.injector : moduleInjector;
    return injector.get(token);
}
/**
 * @param {?} snapshot
 * @return {?}
 */
function getClosestLoadedConfig(snapshot) {
    if (!snapshot)
        return null;
    for (let s = snapshot.parent; s; s = s.parent) {
        /** @type {?} */
        const route = s.routeConfig;
        if (route && route._loadedConfig)
            return route._loadedConfig;
    }
    return null;
}
/**
 * @param {?} futureNode
 * @param {?} currNode
 * @param {?} contexts
 * @param {?} futurePath
 * @param {?=} checks
 * @return {?}
 */
function getChildRouteGuards(futureNode, currNode, contexts, futurePath, checks = {
    canDeactivateChecks: [],
    canActivateChecks: []
}) {
    /** @type {?} */
    const prevChildren = nodeChildrenAsMap(currNode);
    // Process the children of the future route
    futureNode.children.forEach((/**
     * @param {?} c
     * @return {?}
     */
    c => {
        getRouteGuards(c, prevChildren[c.value.outlet], contexts, futurePath.concat([c.value]), checks);
        delete prevChildren[c.value.outlet];
    }));
    // Process any children left from the current route (not active for the future route)
    forEach(prevChildren, (/**
     * @param {?} v
     * @param {?} k
     * @return {?}
     */
    (v, k) => deactivateRouteAndItsChildren(v, (/** @type {?} */ (contexts)).getContext(k), checks)));
    return checks;
}
/**
 * @param {?} futureNode
 * @param {?} currNode
 * @param {?} parentContexts
 * @param {?} futurePath
 * @param {?=} checks
 * @return {?}
 */
function getRouteGuards(futureNode, currNode, parentContexts, futurePath, checks = {
    canDeactivateChecks: [],
    canActivateChecks: []
}) {
    /** @type {?} */
    const future = futureNode.value;
    /** @type {?} */
    const curr = currNode ? currNode.value : null;
    /** @type {?} */
    const context = parentContexts ? parentContexts.getContext(futureNode.value.outlet) : null;
    // reusing the node
    if (curr && future.routeConfig === curr.routeConfig) {
        /** @type {?} */
        const shouldRun = shouldRunGuardsAndResolvers(curr, future, (/** @type {?} */ (future.routeConfig)).runGuardsAndResolvers);
        if (shouldRun) {
            checks.canActivateChecks.push(new CanActivate(futurePath));
        }
        else {
            // we need to set the data
            future.data = curr.data;
            future._resolvedData = curr._resolvedData;
        }
        // If we have a component, we need to go through an outlet.
        if (future.component) {
            getChildRouteGuards(futureNode, currNode, context ? context.children : null, futurePath, checks);
            // if we have a componentless route, we recurse but keep the same outlet map.
        }
        else {
            getChildRouteGuards(futureNode, currNode, parentContexts, futurePath, checks);
        }
        if (shouldRun) {
            /** @type {?} */
            const component = context && context.outlet && context.outlet.component || null;
            checks.canDeactivateChecks.push(new CanDeactivate(component, curr));
        }
    }
    else {
        if (curr) {
            deactivateRouteAndItsChildren(currNode, context, checks);
        }
        checks.canActivateChecks.push(new CanActivate(futurePath));
        // If we have a component, we need to go through an outlet.
        if (future.component) {
            getChildRouteGuards(futureNode, null, context ? context.children : null, futurePath, checks);
            // if we have a componentless route, we recurse but keep the same outlet map.
        }
        else {
            getChildRouteGuards(futureNode, null, parentContexts, futurePath, checks);
        }
    }
    return checks;
}
/**
 * @param {?} curr
 * @param {?} future
 * @param {?} mode
 * @return {?}
 */
function shouldRunGuardsAndResolvers(curr, future, mode) {
    if (typeof mode === 'function') {
        return mode(curr, future);
    }
    switch (mode) {
        case 'pathParamsChange':
            return !equalPath(curr.url, future.url);
        case 'pathParamsOrQueryParamsChange':
            return !equalPath(curr.url, future.url) ||
                !shallowEqual(curr.queryParams, future.queryParams);
        case 'always':
            return true;
        case 'paramsOrQueryParamsChange':
            return !equalParamsAndUrlSegments(curr, future) ||
                !shallowEqual(curr.queryParams, future.queryParams);
        case 'paramsChange':
        default:
            return !equalParamsAndUrlSegments(curr, future);
    }
}
/**
 * @param {?} route
 * @param {?} context
 * @param {?} checks
 * @return {?}
 */
function deactivateRouteAndItsChildren(route, context, checks) {
    /** @type {?} */
    const children = nodeChildrenAsMap(route);
    /** @type {?} */
    const r = route.value;
    forEach(children, (/**
     * @param {?} node
     * @param {?} childName
     * @return {?}
     */
    (node, childName) => {
        if (!r.component) {
            deactivateRouteAndItsChildren(node, context, checks);
        }
        else if (context) {
            deactivateRouteAndItsChildren(node, context.children.getContext(childName), checks);
        }
        else {
            deactivateRouteAndItsChildren(node, null, checks);
        }
    }));
    if (!r.component) {
        checks.canDeactivateChecks.push(new CanDeactivate(null, r));
    }
    else if (context && context.outlet && context.outlet.isActivated) {
        checks.canDeactivateChecks.push(new CanDeactivate(context.outlet.component, r));
    }
    else {
        checks.canDeactivateChecks.push(new CanDeactivate(null, r));
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/** @type {?} */
const INITIAL_VALUE = Symbol('INITIAL_VALUE');
/**
 * @return {?}
 */
function prioritizedGuardValue() {
    return switchMap((/**
     * @param {?} obs
     * @return {?}
     */
    obs => {
        return (/** @type {?} */ (combineLatest(...obs.map((/**
         * @param {?} o
         * @return {?}
         */
        o => o.pipe(take(1), startWith((/** @type {?} */ (INITIAL_VALUE)))))))
            .pipe(scan((/**
         * @param {?} acc
         * @param {?} list
         * @return {?}
         */
        (acc, list) => {
            /** @type {?} */
            let isPending = false;
            return list.reduce((/**
             * @param {?} innerAcc
             * @param {?} val
             * @param {?} i
             * @return {?}
             */
            (innerAcc, val, i) => {
                if (innerAcc !== INITIAL_VALUE)
                    return innerAcc;
                // Toggle pending flag if any values haven't been set yet
                if (val === INITIAL_VALUE)
                    isPending = true;
                // Any other return values are only valid if we haven't yet hit a pending call.
                // This guarantees that in the case of a guard at the bottom of the tree that
                // returns a redirect, we will wait for the higher priority guard at the top to
                // finish before performing the redirect.
                if (!isPending) {
                    // Early return when we hit a `false` value as that should always cancel
                    // navigation
                    if (val === false)
                        return val;
                    if (i === list.length - 1 || isUrlTree(val)) {
                        return val;
                    }
                }
                return innerAcc;
            }), acc);
        }), INITIAL_VALUE), filter((/**
         * @param {?} item
         * @return {?}
         */
        item => item !== INITIAL_VALUE)), map((/**
         * @param {?} item
         * @return {?}
         */
        item => isUrlTree(item) ? item : item === true)), //
        take(1))));
    }));
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} moduleInjector
 * @param {?=} forwardEvent
 * @return {?}
 */
function checkGuards(moduleInjector, forwardEvent) {
    return (/**
     * @param {?} source
     * @return {?}
     */
    function (source) {
        return source.pipe(mergeMap((/**
         * @param {?} t
         * @return {?}
         */
        t => {
            const { targetSnapshot, currentSnapshot, guards: { canActivateChecks, canDeactivateChecks } } = t;
            if (canDeactivateChecks.length === 0 && canActivateChecks.length === 0) {
                return of(Object.assign({}, t, { guardsResult: true }));
            }
            return runCanDeactivateChecks(canDeactivateChecks, (/** @type {?} */ (targetSnapshot)), currentSnapshot, moduleInjector)
                .pipe(mergeMap((/**
             * @param {?} canDeactivate
             * @return {?}
             */
            canDeactivate => {
                return canDeactivate && isBoolean(canDeactivate) ?
                    runCanActivateChecks((/** @type {?} */ (targetSnapshot)), canActivateChecks, moduleInjector, forwardEvent) :
                    of(canDeactivate);
            })), map((/**
             * @param {?} guardsResult
             * @return {?}
             */
            guardsResult => (Object.assign({}, t, { guardsResult })))));
        })));
    });
}
/**
 * @param {?} checks
 * @param {?} futureRSS
 * @param {?} currRSS
 * @param {?} moduleInjector
 * @return {?}
 */
function runCanDeactivateChecks(checks, futureRSS, currRSS, moduleInjector) {
    return from(checks).pipe(mergeMap((/**
     * @param {?} check
     * @return {?}
     */
    check => runCanDeactivate(check.component, check.route, currRSS, futureRSS, moduleInjector))), first((/**
     * @param {?} result
     * @return {?}
     */
    result => { return result !== true; }), (/** @type {?} */ (true))));
}
/**
 * @param {?} futureSnapshot
 * @param {?} checks
 * @param {?} moduleInjector
 * @param {?=} forwardEvent
 * @return {?}
 */
function runCanActivateChecks(futureSnapshot, checks, moduleInjector, forwardEvent) {
    return from(checks).pipe(concatMap((/**
     * @param {?} check
     * @return {?}
     */
    (check) => {
        return from([
            fireChildActivationStart(check.route.parent, forwardEvent),
            fireActivationStart(check.route, forwardEvent),
            runCanActivateChild(futureSnapshot, check.path, moduleInjector),
            runCanActivate(futureSnapshot, check.route, moduleInjector)
        ])
            .pipe(concatAll(), first((/**
         * @param {?} result
         * @return {?}
         */
        result => {
            return result !== true;
        }), (/** @type {?} */ (true))));
    })), first((/**
     * @param {?} result
     * @return {?}
     */
    result => { return result !== true; }), (/** @type {?} */ (true))));
}
/**
 * This should fire off `ActivationStart` events for each route being activated at this
 * level.
 * In other words, if you're activating `a` and `b` below, `path` will contain the
 * `ActivatedRouteSnapshot`s for both and we will fire `ActivationStart` for both. Always
 * return
 * `true` so checks continue to run.
 * @param {?} snapshot
 * @param {?=} forwardEvent
 * @return {?}
 */
function fireActivationStart(snapshot, forwardEvent) {
    if (snapshot !== null && forwardEvent) {
        forwardEvent(new ActivationStart(snapshot));
    }
    return of(true);
}
/**
 * This should fire off `ChildActivationStart` events for each route being activated at this
 * level.
 * In other words, if you're activating `a` and `b` below, `path` will contain the
 * `ActivatedRouteSnapshot`s for both and we will fire `ChildActivationStart` for both. Always
 * return
 * `true` so checks continue to run.
 * @param {?} snapshot
 * @param {?=} forwardEvent
 * @return {?}
 */
function fireChildActivationStart(snapshot, forwardEvent) {
    if (snapshot !== null && forwardEvent) {
        forwardEvent(new ChildActivationStart(snapshot));
    }
    return of(true);
}
/**
 * @param {?} futureRSS
 * @param {?} futureARS
 * @param {?} moduleInjector
 * @return {?}
 */
function runCanActivate(futureRSS, futureARS, moduleInjector) {
    /** @type {?} */
    const canActivate = futureARS.routeConfig ? futureARS.routeConfig.canActivate : null;
    if (!canActivate || canActivate.length === 0)
        return of(true);
    /** @type {?} */
    const canActivateObservables = canActivate.map((/**
     * @param {?} c
     * @return {?}
     */
    (c) => {
        return defer((/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            const guard = getToken(c, futureARS, moduleInjector);
            /** @type {?} */
            let observable;
            if (isCanActivate(guard)) {
                observable = wrapIntoObservable(guard.canActivate(futureARS, futureRSS));
            }
            else if (isFunction(guard)) {
                observable = wrapIntoObservable(guard(futureARS, futureRSS));
            }
            else {
                throw new Error('Invalid CanActivate guard');
            }
            return observable.pipe(first());
        }));
    }));
    return of(canActivateObservables).pipe(prioritizedGuardValue());
}
/**
 * @param {?} futureRSS
 * @param {?} path
 * @param {?} moduleInjector
 * @return {?}
 */
function runCanActivateChild(futureRSS, path, moduleInjector) {
    /** @type {?} */
    const futureARS = path[path.length - 1];
    /** @type {?} */
    const canActivateChildGuards = path.slice(0, path.length - 1)
        .reverse()
        .map((/**
     * @param {?} p
     * @return {?}
     */
    p => getCanActivateChild(p)))
        .filter((/**
     * @param {?} _
     * @return {?}
     */
    _ => _ !== null));
    /** @type {?} */
    const canActivateChildGuardsMapped = canActivateChildGuards.map((/**
     * @param {?} d
     * @return {?}
     */
    (d) => {
        return defer((/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            const guardsMapped = d.guards.map((/**
             * @param {?} c
             * @return {?}
             */
            (c) => {
                /** @type {?} */
                const guard = getToken(c, d.node, moduleInjector);
                /** @type {?} */
                let observable;
                if (isCanActivateChild(guard)) {
                    observable = wrapIntoObservable(guard.canActivateChild(futureARS, futureRSS));
                }
                else if (isFunction(guard)) {
                    observable = wrapIntoObservable(guard(futureARS, futureRSS));
                }
                else {
                    throw new Error('Invalid CanActivateChild guard');
                }
                return observable.pipe(first());
            }));
            return of(guardsMapped).pipe(prioritizedGuardValue());
        }));
    }));
    return of(canActivateChildGuardsMapped).pipe(prioritizedGuardValue());
}
/**
 * @param {?} component
 * @param {?} currARS
 * @param {?} currRSS
 * @param {?} futureRSS
 * @param {?} moduleInjector
 * @return {?}
 */
function runCanDeactivate(component, currARS, currRSS, futureRSS, moduleInjector) {
    /** @type {?} */
    const canDeactivate = currARS && currARS.routeConfig ? currARS.routeConfig.canDeactivate : null;
    if (!canDeactivate || canDeactivate.length === 0)
        return of(true);
    /** @type {?} */
    const canDeactivateObservables = canDeactivate.map((/**
     * @param {?} c
     * @return {?}
     */
    (c) => {
        /** @type {?} */
        const guard = getToken(c, currARS, moduleInjector);
        /** @type {?} */
        let observable;
        if (isCanDeactivate(guard)) {
            observable =
                wrapIntoObservable(guard.canDeactivate((/** @type {?} */ (component)), currARS, currRSS, futureRSS));
        }
        else if (isFunction(guard)) {
            observable = wrapIntoObservable(guard(component, currARS, currRSS, futureRSS));
        }
        else {
            throw new Error('Invalid CanDeactivate guard');
        }
        return observable.pipe(first());
    }));
    return of(canDeactivateObservables).pipe(prioritizedGuardValue());
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class NoMatch$1 {
}
/**
 * @param {?} rootComponentType
 * @param {?} config
 * @param {?} urlTree
 * @param {?} url
 * @param {?=} paramsInheritanceStrategy
 * @param {?=} relativeLinkResolution
 * @return {?}
 */
function recognize(rootComponentType, config, urlTree, url, paramsInheritanceStrategy = 'emptyOnly', relativeLinkResolution = 'legacy') {
    return new Recognizer(rootComponentType, config, urlTree, url, paramsInheritanceStrategy, relativeLinkResolution)
        .recognize();
}
class Recognizer {
    /**
     * @param {?} rootComponentType
     * @param {?} config
     * @param {?} urlTree
     * @param {?} url
     * @param {?} paramsInheritanceStrategy
     * @param {?} relativeLinkResolution
     */
    constructor(rootComponentType, config, urlTree, url, paramsInheritanceStrategy, relativeLinkResolution) {
        this.rootComponentType = rootComponentType;
        this.config = config;
        this.urlTree = urlTree;
        this.url = url;
        this.paramsInheritanceStrategy = paramsInheritanceStrategy;
        this.relativeLinkResolution = relativeLinkResolution;
    }
    /**
     * @return {?}
     */
    recognize() {
        try {
            /** @type {?} */
            const rootSegmentGroup = split$1(this.urlTree.root, [], [], this.config, this.relativeLinkResolution).segmentGroup;
            /** @type {?} */
            const children = this.processSegmentGroup(this.config, rootSegmentGroup, PRIMARY_OUTLET);
            /** @type {?} */
            const root = new ActivatedRouteSnapshot([], Object.freeze({}), Object.freeze(Object.assign({}, this.urlTree.queryParams)), (/** @type {?} */ (this.urlTree.fragment)), {}, PRIMARY_OUTLET, this.rootComponentType, null, this.urlTree.root, -1, {});
            /** @type {?} */
            const rootNode = new TreeNode(root, children);
            /** @type {?} */
            const routeState = new RouterStateSnapshot(this.url, rootNode);
            this.inheritParamsAndData(routeState._root);
            return of(routeState);
        }
        catch (e) {
            return new Observable((/**
             * @param {?} obs
             * @return {?}
             */
            (obs) => obs.error(e)));
        }
    }
    /**
     * @param {?} routeNode
     * @return {?}
     */
    inheritParamsAndData(routeNode) {
        /** @type {?} */
        const route = routeNode.value;
        /** @type {?} */
        const i = inheritedParamsDataResolve(route, this.paramsInheritanceStrategy);
        route.params = Object.freeze(i.params);
        route.data = Object.freeze(i.data);
        routeNode.children.forEach((/**
         * @param {?} n
         * @return {?}
         */
        n => this.inheritParamsAndData(n)));
    }
    /**
     * @param {?} config
     * @param {?} segmentGroup
     * @param {?} outlet
     * @return {?}
     */
    processSegmentGroup(config, segmentGroup, outlet) {
        if (segmentGroup.segments.length === 0 && segmentGroup.hasChildren()) {
            return this.processChildren(config, segmentGroup);
        }
        return this.processSegment(config, segmentGroup, segmentGroup.segments, outlet);
    }
    /**
     * @param {?} config
     * @param {?} segmentGroup
     * @return {?}
     */
    processChildren(config, segmentGroup) {
        /** @type {?} */
        const children = mapChildrenIntoArray(segmentGroup, (/**
         * @param {?} child
         * @param {?} childOutlet
         * @return {?}
         */
        (child, childOutlet) => this.processSegmentGroup(config, child, childOutlet)));
        checkOutletNameUniqueness(children);
        sortActivatedRouteSnapshots(children);
        return children;
    }
    /**
     * @param {?} config
     * @param {?} segmentGroup
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    processSegment(config, segmentGroup, segments, outlet) {
        for (const r of config) {
            try {
                return this.processSegmentAgainstRoute(r, segmentGroup, segments, outlet);
            }
            catch (e) {
                if (!(e instanceof NoMatch$1))
                    throw e;
            }
        }
        if (this.noLeftoversInUrl(segmentGroup, segments, outlet)) {
            return [];
        }
        throw new NoMatch$1();
    }
    /**
     * @private
     * @param {?} segmentGroup
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    noLeftoversInUrl(segmentGroup, segments, outlet) {
        return segments.length === 0 && !segmentGroup.children[outlet];
    }
    /**
     * @param {?} route
     * @param {?} rawSegment
     * @param {?} segments
     * @param {?} outlet
     * @return {?}
     */
    processSegmentAgainstRoute(route, rawSegment, segments, outlet) {
        if (route.redirectTo)
            throw new NoMatch$1();
        if ((route.outlet || PRIMARY_OUTLET) !== outlet)
            throw new NoMatch$1();
        /** @type {?} */
        let snapshot;
        /** @type {?} */
        let consumedSegments = [];
        /** @type {?} */
        let rawSlicedSegments = [];
        if (route.path === '**') {
            /** @type {?} */
            const params = segments.length > 0 ? (/** @type {?} */ (last(segments))).parameters : {};
            snapshot = new ActivatedRouteSnapshot(segments, params, Object.freeze(Object.assign({}, this.urlTree.queryParams)), (/** @type {?} */ (this.urlTree.fragment)), getData(route), outlet, (/** @type {?} */ (route.component)), route, getSourceSegmentGroup(rawSegment), getPathIndexShift(rawSegment) + segments.length, getResolve(route));
        }
        else {
            /** @type {?} */
            const result = match$1(rawSegment, route, segments);
            consumedSegments = result.consumedSegments;
            rawSlicedSegments = segments.slice(result.lastChild);
            snapshot = new ActivatedRouteSnapshot(consumedSegments, result.parameters, Object.freeze(Object.assign({}, this.urlTree.queryParams)), (/** @type {?} */ (this.urlTree.fragment)), getData(route), outlet, (/** @type {?} */ (route.component)), route, getSourceSegmentGroup(rawSegment), getPathIndexShift(rawSegment) + consumedSegments.length, getResolve(route));
        }
        /** @type {?} */
        const childConfig = getChildConfig(route);
        const { segmentGroup, slicedSegments } = split$1(rawSegment, consumedSegments, rawSlicedSegments, childConfig, this.relativeLinkResolution);
        if (slicedSegments.length === 0 && segmentGroup.hasChildren()) {
            /** @type {?} */
            const children = this.processChildren(childConfig, segmentGroup);
            return [new TreeNode(snapshot, children)];
        }
        if (childConfig.length === 0 && slicedSegments.length === 0) {
            return [new TreeNode(snapshot, [])];
        }
        /** @type {?} */
        const children = this.processSegment(childConfig, segmentGroup, slicedSegments, PRIMARY_OUTLET);
        return [new TreeNode(snapshot, children)];
    }
}
/**
 * @param {?} nodes
 * @return {?}
 */
function sortActivatedRouteSnapshots(nodes) {
    nodes.sort((/**
     * @param {?} a
     * @param {?} b
     * @return {?}
     */
    (a, b) => {
        if (a.value.outlet === PRIMARY_OUTLET)
            return -1;
        if (b.value.outlet === PRIMARY_OUTLET)
            return 1;
        return a.value.outlet.localeCompare(b.value.outlet);
    }));
}
/**
 * @param {?} route
 * @return {?}
 */
function getChildConfig(route) {
    if (route.children) {
        return route.children;
    }
    if (route.loadChildren) {
        return (/** @type {?} */ (route._loadedConfig)).routes;
    }
    return [];
}
/**
 * @param {?} segmentGroup
 * @param {?} route
 * @param {?} segments
 * @return {?}
 */
function match$1(segmentGroup, route, segments) {
    if (route.path === '') {
        if (route.pathMatch === 'full' && (segmentGroup.hasChildren() || segments.length > 0)) {
            throw new NoMatch$1();
        }
        return { consumedSegments: [], lastChild: 0, parameters: {} };
    }
    /** @type {?} */
    const matcher = route.matcher || defaultUrlMatcher;
    /** @type {?} */
    const res = matcher(segments, segmentGroup, route);
    if (!res)
        throw new NoMatch$1();
    /** @type {?} */
    const posParams = {};
    forEach((/** @type {?} */ (res.posParams)), (/**
     * @param {?} v
     * @param {?} k
     * @return {?}
     */
    (v, k) => { posParams[k] = v.path; }));
    /** @type {?} */
    const parameters = res.consumed.length > 0 ? Object.assign({}, posParams, res.consumed[res.consumed.length - 1].parameters) :
        posParams;
    return { consumedSegments: res.consumed, lastChild: res.consumed.length, parameters };
}
/**
 * @param {?} nodes
 * @return {?}
 */
function checkOutletNameUniqueness(nodes) {
    /** @type {?} */
    const names = {};
    nodes.forEach((/**
     * @param {?} n
     * @return {?}
     */
    n => {
        /** @type {?} */
        const routeWithSameOutletName = names[n.value.outlet];
        if (routeWithSameOutletName) {
            /** @type {?} */
            const p = routeWithSameOutletName.url.map((/**
             * @param {?} s
             * @return {?}
             */
            s => s.toString())).join('/');
            /** @type {?} */
            const c = n.value.url.map((/**
             * @param {?} s
             * @return {?}
             */
            s => s.toString())).join('/');
            throw new Error(`Two segments cannot have the same outlet name: '${p}' and '${c}'.`);
        }
        names[n.value.outlet] = n.value;
    }));
}
/**
 * @param {?} segmentGroup
 * @return {?}
 */
function getSourceSegmentGroup(segmentGroup) {
    /** @type {?} */
    let s = segmentGroup;
    while (s._sourceSegment) {
        s = s._sourceSegment;
    }
    return s;
}
/**
 * @param {?} segmentGroup
 * @return {?}
 */
function getPathIndexShift(segmentGroup) {
    /** @type {?} */
    let s = segmentGroup;
    /** @type {?} */
    let res = (s._segmentIndexShift ? s._segmentIndexShift : 0);
    while (s._sourceSegment) {
        s = s._sourceSegment;
        res += (s._segmentIndexShift ? s._segmentIndexShift : 0);
    }
    return res - 1;
}
/**
 * @param {?} segmentGroup
 * @param {?} consumedSegments
 * @param {?} slicedSegments
 * @param {?} config
 * @param {?} relativeLinkResolution
 * @return {?}
 */
function split$1(segmentGroup, consumedSegments, slicedSegments, config, relativeLinkResolution) {
    if (slicedSegments.length > 0 &&
        containsEmptyPathMatchesWithNamedOutlets(segmentGroup, slicedSegments, config)) {
        /** @type {?} */
        const s = new UrlSegmentGroup(consumedSegments, createChildrenForEmptyPaths(segmentGroup, consumedSegments, config, new UrlSegmentGroup(slicedSegments, segmentGroup.children)));
        s._sourceSegment = segmentGroup;
        s._segmentIndexShift = consumedSegments.length;
        return { segmentGroup: s, slicedSegments: [] };
    }
    if (slicedSegments.length === 0 &&
        containsEmptyPathMatches(segmentGroup, slicedSegments, config)) {
        /** @type {?} */
        const s = new UrlSegmentGroup(segmentGroup.segments, addEmptyPathsToChildrenIfNeeded(segmentGroup, consumedSegments, slicedSegments, config, segmentGroup.children, relativeLinkResolution));
        s._sourceSegment = segmentGroup;
        s._segmentIndexShift = consumedSegments.length;
        return { segmentGroup: s, slicedSegments };
    }
    /** @type {?} */
    const s = new UrlSegmentGroup(segmentGroup.segments, segmentGroup.children);
    s._sourceSegment = segmentGroup;
    s._segmentIndexShift = consumedSegments.length;
    return { segmentGroup: s, slicedSegments };
}
/**
 * @param {?} segmentGroup
 * @param {?} consumedSegments
 * @param {?} slicedSegments
 * @param {?} routes
 * @param {?} children
 * @param {?} relativeLinkResolution
 * @return {?}
 */
function addEmptyPathsToChildrenIfNeeded(segmentGroup, consumedSegments, slicedSegments, routes, children, relativeLinkResolution) {
    /** @type {?} */
    const res = {};
    for (const r of routes) {
        if (emptyPathMatch(segmentGroup, slicedSegments, r) && !children[getOutlet$1(r)]) {
            /** @type {?} */
            const s = new UrlSegmentGroup([], {});
            s._sourceSegment = segmentGroup;
            if (relativeLinkResolution === 'legacy') {
                s._segmentIndexShift = segmentGroup.segments.length;
            }
            else {
                s._segmentIndexShift = consumedSegments.length;
            }
            res[getOutlet$1(r)] = s;
        }
    }
    return Object.assign({}, children, res);
}
/**
 * @param {?} segmentGroup
 * @param {?} consumedSegments
 * @param {?} routes
 * @param {?} primarySegment
 * @return {?}
 */
function createChildrenForEmptyPaths(segmentGroup, consumedSegments, routes, primarySegment) {
    /** @type {?} */
    const res = {};
    res[PRIMARY_OUTLET] = primarySegment;
    primarySegment._sourceSegment = segmentGroup;
    primarySegment._segmentIndexShift = consumedSegments.length;
    for (const r of routes) {
        if (r.path === '' && getOutlet$1(r) !== PRIMARY_OUTLET) {
            /** @type {?} */
            const s = new UrlSegmentGroup([], {});
            s._sourceSegment = segmentGroup;
            s._segmentIndexShift = consumedSegments.length;
            res[getOutlet$1(r)] = s;
        }
    }
    return res;
}
/**
 * @param {?} segmentGroup
 * @param {?} slicedSegments
 * @param {?} routes
 * @return {?}
 */
function containsEmptyPathMatchesWithNamedOutlets(segmentGroup, slicedSegments, routes) {
    return routes.some((/**
     * @param {?} r
     * @return {?}
     */
    r => emptyPathMatch(segmentGroup, slicedSegments, r) && getOutlet$1(r) !== PRIMARY_OUTLET));
}
/**
 * @param {?} segmentGroup
 * @param {?} slicedSegments
 * @param {?} routes
 * @return {?}
 */
function containsEmptyPathMatches(segmentGroup, slicedSegments, routes) {
    return routes.some((/**
     * @param {?} r
     * @return {?}
     */
    r => emptyPathMatch(segmentGroup, slicedSegments, r)));
}
/**
 * @param {?} segmentGroup
 * @param {?} slicedSegments
 * @param {?} r
 * @return {?}
 */
function emptyPathMatch(segmentGroup, slicedSegments, r) {
    if ((segmentGroup.hasChildren() || slicedSegments.length > 0) && r.pathMatch === 'full') {
        return false;
    }
    return r.path === '' && r.redirectTo === undefined;
}
/**
 * @param {?} route
 * @return {?}
 */
function getOutlet$1(route) {
    return route.outlet || PRIMARY_OUTLET;
}
/**
 * @param {?} route
 * @return {?}
 */
function getData(route) {
    return route.data || {};
}
/**
 * @param {?} route
 * @return {?}
 */
function getResolve(route) {
    return route.resolve || {};
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} rootComponentType
 * @param {?} config
 * @param {?} serializer
 * @param {?} paramsInheritanceStrategy
 * @param {?} relativeLinkResolution
 * @return {?}
 */
function recognize$1(rootComponentType, config, serializer, paramsInheritanceStrategy, relativeLinkResolution) {
    return (/**
     * @param {?} source
     * @return {?}
     */
    function (source) {
        return source.pipe(mergeMap((/**
         * @param {?} t
         * @return {?}
         */
        t => recognize(rootComponentType, config, t.urlAfterRedirects, serializer(t.urlAfterRedirects), paramsInheritanceStrategy, relativeLinkResolution)
            .pipe(map((/**
         * @param {?} targetSnapshot
         * @return {?}
         */
        targetSnapshot => (Object.assign({}, t, { targetSnapshot }))))))));
    });
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} paramsInheritanceStrategy
 * @param {?} moduleInjector
 * @return {?}
 */
function resolveData(paramsInheritanceStrategy, moduleInjector) {
    return (/**
     * @param {?} source
     * @return {?}
     */
    function (source) {
        return source.pipe(mergeMap((/**
         * @param {?} t
         * @return {?}
         */
        t => {
            const { targetSnapshot, guards: { canActivateChecks } } = t;
            if (!canActivateChecks.length) {
                return of(t);
            }
            return from(canActivateChecks)
                .pipe(concatMap((/**
             * @param {?} check
             * @return {?}
             */
            check => runResolve(check.route, (/** @type {?} */ (targetSnapshot)), paramsInheritanceStrategy, moduleInjector))), reduce((/**
             * @param {?} _
             * @param {?} __
             * @return {?}
             */
            (_, __) => _)), map((/**
             * @param {?} _
             * @return {?}
             */
            _ => t)));
        })));
    });
}
/**
 * @param {?} futureARS
 * @param {?} futureRSS
 * @param {?} paramsInheritanceStrategy
 * @param {?} moduleInjector
 * @return {?}
 */
function runResolve(futureARS, futureRSS, paramsInheritanceStrategy, moduleInjector) {
    /** @type {?} */
    const resolve = futureARS._resolve;
    return resolveNode(resolve, futureARS, futureRSS, moduleInjector)
        .pipe(map((/**
     * @param {?} resolvedData
     * @return {?}
     */
    (resolvedData) => {
        futureARS._resolvedData = resolvedData;
        futureARS.data = Object.assign({}, futureARS.data, inheritedParamsDataResolve(futureARS, paramsInheritanceStrategy).resolve);
        return null;
    })));
}
/**
 * @param {?} resolve
 * @param {?} futureARS
 * @param {?} futureRSS
 * @param {?} moduleInjector
 * @return {?}
 */
function resolveNode(resolve, futureARS, futureRSS, moduleInjector) {
    /** @type {?} */
    const keys = Object.keys(resolve);
    if (keys.length === 0) {
        return of({});
    }
    if (keys.length === 1) {
        /** @type {?} */
        const key = keys[0];
        return getResolver(resolve[key], futureARS, futureRSS, moduleInjector)
            .pipe(map((/**
         * @param {?} value
         * @return {?}
         */
        (value) => { return { [key]: value }; })));
    }
    /** @type {?} */
    const data = {};
    /** @type {?} */
    const runningResolvers$ = from(keys).pipe(mergeMap((/**
     * @param {?} key
     * @return {?}
     */
    (key) => {
        return getResolver(resolve[key], futureARS, futureRSS, moduleInjector)
            .pipe(map((/**
         * @param {?} value
         * @return {?}
         */
        (value) => {
            data[key] = value;
            return value;
        })));
    })));
    return runningResolvers$.pipe(last$1(), map((/**
     * @return {?}
     */
    () => data)));
}
/**
 * @param {?} injectionToken
 * @param {?} futureARS
 * @param {?} futureRSS
 * @param {?} moduleInjector
 * @return {?}
 */
function getResolver(injectionToken, futureARS, futureRSS, moduleInjector) {
    /** @type {?} */
    const resolver = getToken(injectionToken, futureARS, moduleInjector);
    return resolver.resolve ? wrapIntoObservable(resolver.resolve(futureARS, futureRSS)) :
        wrapIntoObservable(resolver(futureARS, futureRSS));
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * Perform a side effect through a switchMap for every emission on the source Observable,
 * but return an Observable that is identical to the source. It's essentially the same as
 * the `tap` operator, but if the side effectful `next` function returns an ObservableInput,
 * it will wait before continuing with the original value.
 * @template T
 * @param {?} next
 * @return {?}
 */
function switchTap(next) {
    return (/**
     * @param {?} source
     * @return {?}
     */
    function (source) {
        return source.pipe(switchMap((/**
         * @param {?} v
         * @return {?}
         */
        v => {
            /** @type {?} */
            const nextResult = next(v);
            if (nextResult) {
                return from(nextResult).pipe(map((/**
                 * @return {?}
                 */
                () => v)));
            }
            return from([v]);
        })));
    });
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * \@description
 *
 * Provides a way to customize when activated routes get reused.
 *
 * \@publicApi
 * @abstract
 */
class RouteReuseStrategy {
}
/**
 * Does not detach any subtrees. Reuses routes as long as their route config is the same.
 */
class DefaultRouteReuseStrategy {
    /**
     * @param {?} route
     * @return {?}
     */
    shouldDetach(route) { return false; }
    /**
     * @param {?} route
     * @param {?} detachedTree
     * @return {?}
     */
    store(route, detachedTree) { }
    /**
     * @param {?} route
     * @return {?}
     */
    shouldAttach(route) { return false; }
    /**
     * @param {?} route
     * @return {?}
     */
    retrieve(route) { return null; }
    /**
     * @param {?} future
     * @param {?} curr
     * @return {?}
     */
    shouldReuseRoute(future, curr) {
        return future.routeConfig === curr.routeConfig;
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@docsNotRequired
 * \@publicApi
 * @type {?}
 */
const ROUTES = new InjectionToken('ROUTES');
class RouterConfigLoader {
    /**
     * @param {?} loader
     * @param {?} compiler
     * @param {?=} onLoadStartListener
     * @param {?=} onLoadEndListener
     */
    constructor(loader, compiler, onLoadStartListener, onLoadEndListener) {
        this.loader = loader;
        this.compiler = compiler;
        this.onLoadStartListener = onLoadStartListener;
        this.onLoadEndListener = onLoadEndListener;
    }
    /**
     * @param {?} parentInjector
     * @param {?} route
     * @return {?}
     */
    load(parentInjector, route) {
        if (this.onLoadStartListener) {
            this.onLoadStartListener(route);
        }
        /** @type {?} */
        const moduleFactory$ = this.loadModuleFactory((/** @type {?} */ (route.loadChildren)));
        return moduleFactory$.pipe(map((/**
         * @param {?} factory
         * @return {?}
         */
        (factory) => {
            if (this.onLoadEndListener) {
                this.onLoadEndListener(route);
            }
            /** @type {?} */
            const module = factory.create(parentInjector);
            return new LoadedRouterConfig(flatten(module.injector.get(ROUTES)).map(standardizeConfig), module);
        })));
    }
    /**
     * @private
     * @param {?} loadChildren
     * @return {?}
     */
    loadModuleFactory(loadChildren) {
        if (typeof loadChildren === 'string') {
            return from(this.loader.load(loadChildren));
        }
        else {
            return wrapIntoObservable(loadChildren()).pipe(mergeMap((/**
             * @param {?} t
             * @return {?}
             */
            (t) => {
                if (t instanceof NgModuleFactory) {
                    return of(t);
                }
                else {
                    return from(this.compiler.compileModuleAsync(t));
                }
            })));
        }
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * \@description
 *
 * Provides a way to migrate AngularJS applications to Angular.
 *
 * \@publicApi
 * @abstract
 */
class UrlHandlingStrategy {
}
/**
 * \@publicApi
 */
class DefaultUrlHandlingStrategy {
    /**
     * @param {?} url
     * @return {?}
     */
    shouldProcessUrl(url) { return true; }
    /**
     * @param {?} url
     * @return {?}
     */
    extract(url) { return url; }
    /**
     * @param {?} newUrlPart
     * @param {?} wholeUrl
     * @return {?}
     */
    merge(newUrlPart, wholeUrl) { return newUrlPart; }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @param {?} error
 * @return {?}
 */
function defaultErrorHandler(error) {
    throw error;
}
/**
 * @param {?} error
 * @param {?} urlSerializer
 * @param {?} url
 * @return {?}
 */
function defaultMalformedUriErrorHandler(error, urlSerializer, url) {
    return urlSerializer.parse('/');
}
/**
 * \@internal
 * @param {?} snapshot
 * @param {?} runExtras
 * @return {?}
 */
function defaultRouterHook(snapshot, runExtras) {
    return (/** @type {?} */ (of(null)));
}
/**
 * \@description
 *
 * An NgModule that provides navigation and URL manipulation capabilities.
 *
 * @see `Route`.
 * @see [Routing and Navigation Guide](guide/router).
 *
 * \@ngModule RouterModule
 *
 * \@publicApi
 */
class Router {
    /**
     * Creates the router service.
     * @param {?} rootComponentType
     * @param {?} urlSerializer
     * @param {?} rootContexts
     * @param {?} location
     * @param {?} injector
     * @param {?} loader
     * @param {?} compiler
     * @param {?} config
     */
    // TODO: vsavkin make internal after the final is out.
    constructor(rootComponentType, urlSerializer, rootContexts, location, injector, loader, compiler, config) {
        this.rootComponentType = rootComponentType;
        this.urlSerializer = urlSerializer;
        this.rootContexts = rootContexts;
        this.location = location;
        this.config = config;
        this.lastSuccessfulNavigation = null;
        this.currentNavigation = null;
        this.navigationId = 0;
        this.isNgZoneEnabled = false;
        /**
         * An event stream for routing events in this NgModule.
         */
        this.events = new Subject();
        /**
         * A handler for navigation errors in this NgModule.
         */
        this.errorHandler = defaultErrorHandler;
        /**
         * Malformed uri error handler is invoked when `Router.parseUrl(url)` throws an
         * error due to containing an invalid character. The most common case would be a `%` sign
         * that's not encoded and is not part of a percent encoded sequence.
         */
        this.malformedUriErrorHandler = defaultMalformedUriErrorHandler;
        /**
         * True if at least one navigation event has occurred,
         * false otherwise.
         */
        this.navigated = false;
        this.lastSuccessfulId = -1;
        /**
         * Hooks that enable you to pause navigation,
         * either before or after the preactivation phase.
         * Used by `RouterModule`.
         *
         * \@internal
         */
        this.hooks = {
            beforePreactivation: defaultRouterHook,
            afterPreactivation: defaultRouterHook
        };
        /**
         * Extracts and merges URLs. Used for AngularJS to Angular migrations.
         */
        this.urlHandlingStrategy = new DefaultUrlHandlingStrategy();
        /**
         * The strategy for re-using routes.
         */
        this.routeReuseStrategy = new DefaultRouteReuseStrategy();
        /**
         * How to handle a navigation request to the current URL. One of:
         * - `'ignore'` :  The router ignores the request.
         * - `'reload'` : The router reloads the URL. Use to implement a "refresh" feature.
         */
        this.onSameUrlNavigation = 'ignore';
        /**
         * How to merge parameters, data, and resolved data from parent to child
         * routes. One of:
         *
         * - `'emptyOnly'` : Inherit parent parameters, data, and resolved data
         * for path-less or component-less routes.
         * - `'always'` : Inherit parent parameters, data, and resolved data
         * for all child routes.
         */
        this.paramsInheritanceStrategy = 'emptyOnly';
        /**
         * Defines when the router updates the browser URL. The default behavior is to update after
         * successful navigation. However, some applications may prefer a mode where the URL gets
         * updated at the beginning of navigation. The most common use case would be updating the
         * URL early so if navigation fails, you can show an error message with the URL that failed.
         * Available options are:
         *
         * - `'deferred'`, the default, updates the browser URL after navigation has finished.
         * - `'eager'`, updates browser URL at the beginning of navigation.
         */
        this.urlUpdateStrategy = 'deferred';
        /**
         * See {\@link RouterModule} for more information.
         */
        this.relativeLinkResolution = 'legacy';
        /** @type {?} */
        const onLoadStart = (/**
         * @param {?} r
         * @return {?}
         */
        (r) => this.triggerEvent(new RouteConfigLoadStart(r)));
        /** @type {?} */
        const onLoadEnd = (/**
         * @param {?} r
         * @return {?}
         */
        (r) => this.triggerEvent(new RouteConfigLoadEnd(r)));
        this.ngModule = injector.get(NgModuleRef);
        this.console = injector.get(ɵConsole);
        /** @type {?} */
        const ngZone = injector.get(NgZone);
        this.isNgZoneEnabled = ngZone instanceof NgZone;
        this.resetConfig(config);
        this.currentUrlTree = createEmptyUrlTree();
        this.rawUrlTree = this.currentUrlTree;
        this.browserUrlTree = this.currentUrlTree;
        this.configLoader = new RouterConfigLoader(loader, compiler, onLoadStart, onLoadEnd);
        this.routerState = createEmptyState(this.currentUrlTree, this.rootComponentType);
        this.transitions = new BehaviorSubject({
            id: 0,
            currentUrlTree: this.currentUrlTree,
            currentRawUrl: this.currentUrlTree,
            extractedUrl: this.urlHandlingStrategy.extract(this.currentUrlTree),
            urlAfterRedirects: this.urlHandlingStrategy.extract(this.currentUrlTree),
            rawUrl: this.currentUrlTree,
            extras: {},
            resolve: null,
            reject: null,
            promise: Promise.resolve(true),
            source: 'imperative',
            restoredState: null,
            currentSnapshot: this.routerState.snapshot,
            targetSnapshot: null,
            currentRouterState: this.routerState,
            targetRouterState: null,
            guards: { canActivateChecks: [], canDeactivateChecks: [] },
            guardsResult: null,
        });
        this.navigations = this.setupNavigations(this.transitions);
        this.processNavigations();
    }
    /**
     * @private
     * @param {?} transitions
     * @return {?}
     */
    setupNavigations(transitions) {
        /** @type {?} */
        const eventsSubject = ((/** @type {?} */ (this.events)));
        return (/** @type {?} */ ((/** @type {?} */ (transitions.pipe(filter((/**
         * @param {?} t
         * @return {?}
         */
        t => t.id !== 0)), 
        // Extract URL
        map((/**
         * @param {?} t
         * @return {?}
         */
        t => ((/** @type {?} */ (Object.assign({}, t, { extractedUrl: this.urlHandlingStrategy.extract(t.rawUrl) })))))), 
        // Using switchMap so we cancel executing navigations when a new one comes in
        switchMap((/**
         * @param {?} t
         * @return {?}
         */
        t => {
            /** @type {?} */
            let completed = false;
            /** @type {?} */
            let errored = false;
            return of(t).pipe(
            // Store the Navigation object
            tap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                this.currentNavigation = {
                    id: t.id,
                    initialUrl: t.currentRawUrl,
                    extractedUrl: t.extractedUrl,
                    trigger: t.source,
                    extras: t.extras,
                    previousNavigation: this.lastSuccessfulNavigation ? Object.assign({}, this.lastSuccessfulNavigation, { previousNavigation: null }) :
                        null
                };
            })), switchMap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                /** @type {?} */
                const urlTransition = !this.navigated || t.extractedUrl.toString() !== this.browserUrlTree.toString();
                /** @type {?} */
                const processCurrentUrl = (this.onSameUrlNavigation === 'reload' ? true : urlTransition) &&
                    this.urlHandlingStrategy.shouldProcessUrl(t.rawUrl);
                if (processCurrentUrl) {
                    return of(t).pipe(
                    // Fire NavigationStart event
                    switchMap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        /** @type {?} */
                        const transition = this.transitions.getValue();
                        eventsSubject.next(new NavigationStart(t.id, this.serializeUrl(t.extractedUrl), t.source, t.restoredState));
                        if (transition !== this.transitions.getValue()) {
                            return EMPTY;
                        }
                        return [t];
                    })), 
                    // This delay is required to match old behavior that forced navigation to
                    // always be async
                    switchMap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => Promise.resolve(t))), 
                    // ApplyRedirects
                    applyRedirects$1(this.ngModule.injector, this.configLoader, this.urlSerializer, this.config), 
                    // Update the currentNavigation
                    tap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        this.currentNavigation = Object.assign({}, (/** @type {?} */ (this.currentNavigation)), { finalUrl: t.urlAfterRedirects });
                    })), 
                    // Recognize
                    recognize$1(this.rootComponentType, this.config, (/**
                     * @param {?} url
                     * @return {?}
                     */
                    (url) => this.serializeUrl(url)), this.paramsInheritanceStrategy, this.relativeLinkResolution), 
                    // Update URL if in `eager` update mode
                    tap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        if (this.urlUpdateStrategy === 'eager') {
                            if (!t.extras.skipLocationChange) {
                                this.setBrowserUrl(t.urlAfterRedirects, !!t.extras.replaceUrl, t.id, t.extras.state);
                            }
                            this.browserUrlTree = t.urlAfterRedirects;
                        }
                    })), 
                    // Fire RoutesRecognized
                    tap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        /** @type {?} */
                        const routesRecognized = new RoutesRecognized(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(t.urlAfterRedirects), (/** @type {?} */ (t.targetSnapshot)));
                        eventsSubject.next(routesRecognized);
                    })));
                }
                else {
                    /** @type {?} */
                    const processPreviousUrl = urlTransition && this.rawUrlTree &&
                        this.urlHandlingStrategy.shouldProcessUrl(this.rawUrlTree);
                    /* When the current URL shouldn't be processed, but the previous one was, we
                     * handle this "error condition" by navigating to the previously successful URL,
                     * but leaving the URL intact.*/
                    if (processPreviousUrl) {
                        const { id, extractedUrl, source, restoredState, extras } = t;
                        /** @type {?} */
                        const navStart = new NavigationStart(id, this.serializeUrl(extractedUrl), source, restoredState);
                        eventsSubject.next(navStart);
                        /** @type {?} */
                        const targetSnapshot = createEmptyState(extractedUrl, this.rootComponentType).snapshot;
                        return of(Object.assign({}, t, { targetSnapshot, urlAfterRedirects: extractedUrl, extras: Object.assign({}, extras, { skipLocationChange: false, replaceUrl: false }) }));
                    }
                    else {
                        /* When neither the current or previous URL can be processed, do nothing other
                         * than update router's internal reference to the current "settled" URL. This
                         * way the next navigation will be coming from the current URL in the browser.
                         */
                        this.rawUrlTree = t.rawUrl;
                        this.browserUrlTree = t.urlAfterRedirects;
                        t.resolve(null);
                        return EMPTY;
                    }
                }
            })), 
            // Before Preactivation
            switchTap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                const { targetSnapshot, id: navigationId, extractedUrl: appliedUrlTree, rawUrl: rawUrlTree, extras: { skipLocationChange, replaceUrl } } = t;
                return this.hooks.beforePreactivation((/** @type {?} */ (targetSnapshot)), {
                    navigationId,
                    appliedUrlTree,
                    rawUrlTree,
                    skipLocationChange: !!skipLocationChange,
                    replaceUrl: !!replaceUrl,
                });
            })), 
            // --- GUARDS ---
            tap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                /** @type {?} */
                const guardsStart = new GuardsCheckStart(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(t.urlAfterRedirects), (/** @type {?} */ (t.targetSnapshot)));
                this.triggerEvent(guardsStart);
            })), map((/**
             * @param {?} t
             * @return {?}
             */
            t => (Object.assign({}, t, { guards: getAllRouteGuards((/** @type {?} */ (t.targetSnapshot)), t.currentSnapshot, this.rootContexts) })))), checkGuards(this.ngModule.injector, (/**
             * @param {?} evt
             * @return {?}
             */
            (evt) => this.triggerEvent(evt))), tap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                if (isUrlTree(t.guardsResult)) {
                    /** @type {?} */
                    const error = navigationCancelingError(`Redirecting to "${this.serializeUrl(t.guardsResult)}"`);
                    error.url = t.guardsResult;
                    throw error;
                }
            })), tap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                /** @type {?} */
                const guardsEnd = new GuardsCheckEnd(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(t.urlAfterRedirects), (/** @type {?} */ (t.targetSnapshot)), !!t.guardsResult);
                this.triggerEvent(guardsEnd);
            })), filter((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                if (!t.guardsResult) {
                    this.resetUrlToCurrentUrlTree();
                    /** @type {?} */
                    const navCancel = new NavigationCancel(t.id, this.serializeUrl(t.extractedUrl), '');
                    eventsSubject.next(navCancel);
                    t.resolve(false);
                    return false;
                }
                return true;
            })), 
            // --- RESOLVE ---
            switchTap((/**
             * @param {?} t
             * @return {?}
             */
            t => {
                if (t.guards.canActivateChecks.length) {
                    return of(t).pipe(tap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        /** @type {?} */
                        const resolveStart = new ResolveStart(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(t.urlAfterRedirects), (/** @type {?} */ (t.targetSnapshot)));
                        this.triggerEvent(resolveStart);
                    })), resolveData(this.paramsInheritanceStrategy, this.ngModule.injector), //
                    tap((/**
                     * @param {?} t
                     * @return {?}
                     */
                    t => {
                        /** @type {?} */
                        const resolveEnd = new ResolveEnd(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(t.urlAfterRedirects), (/** @type {?} */ (t.targetSnapshot)));
                        this.triggerEvent(resolveEnd);
                    })));
                }
                return undefined;
            })), 
            // --- AFTER PREACTIVATION ---
            switchTap((/**
             * @param {?} t
             * @return {?}
             */
            (t) => {
                const { targetSnapshot, id: navigationId, extractedUrl: appliedUrlTree, rawUrl: rawUrlTree, extras: { skipLocationChange, replaceUrl } } = t;
                return this.hooks.afterPreactivation((/** @type {?} */ (targetSnapshot)), {
                    navigationId,
                    appliedUrlTree,
                    rawUrlTree,
                    skipLocationChange: !!skipLocationChange,
                    replaceUrl: !!replaceUrl,
                });
            })), map((/**
             * @param {?} t
             * @return {?}
             */
            (t) => {
                /** @type {?} */
                const targetRouterState = createRouterState(this.routeReuseStrategy, (/** @type {?} */ (t.targetSnapshot)), t.currentRouterState);
                return (Object.assign({}, t, { targetRouterState }));
            })), 
            /* Once here, we are about to activate syncronously. The assumption is this will
               succeed, and user code may read from the Router service. Therefore before
               activation, we need to update router properties storing the current URL and the
               RouterState, as well as updated the browser URL. All this should happen *before*
               activating. */
            tap((/**
             * @param {?} t
             * @return {?}
             */
            (t) => {
                this.currentUrlTree = t.urlAfterRedirects;
                this.rawUrlTree = this.urlHandlingStrategy.merge(this.currentUrlTree, t.rawUrl);
                ((/** @type {?} */ (this))).routerState = (/** @type {?} */ (t.targetRouterState));
                if (this.urlUpdateStrategy === 'deferred') {
                    if (!t.extras.skipLocationChange) {
                        this.setBrowserUrl(this.rawUrlTree, !!t.extras.replaceUrl, t.id, t.extras.state);
                    }
                    this.browserUrlTree = t.urlAfterRedirects;
                }
            })), activateRoutes(this.rootContexts, this.routeReuseStrategy, (/**
             * @param {?} evt
             * @return {?}
             */
            (evt) => this.triggerEvent(evt))), tap({ /**
                 * @return {?}
                 */
                next() { completed = true; }, /**
                 * @return {?}
                 */
                complete() { completed = true; } }), finalize((/**
             * @return {?}
             */
            () => {
                /* When the navigation stream finishes either through error or success, we set the
                 * `completed` or `errored` flag. However, there are some situations where we could
                 * get here without either of those being set. For instance, a redirect during
                 * NavigationStart. Therefore, this is a catch-all to make sure the NavigationCancel
                 * event is fired when a navigation gets cancelled but not caught by other means. */
                if (!completed && !errored) {
                    // Must reset to current URL tree here to ensure history.state is set. On a fresh
                    // page load, if a new navigation comes in before a successful navigation
                    // completes, there will be nothing in history.state.navigationId. This can cause
                    // sync problems with AngularJS sync code which looks for a value here in order
                    // to determine whether or not to handle a given popstate event or to leave it
                    // to the Angualr router.
                    this.resetUrlToCurrentUrlTree();
                    /** @type {?} */
                    const navCancel = new NavigationCancel(t.id, this.serializeUrl(t.extractedUrl), `Navigation ID ${t.id} is not equal to the current navigation id ${this.navigationId}`);
                    eventsSubject.next(navCancel);
                    t.resolve(false);
                }
                // currentNavigation should always be reset to null here. If navigation was
                // successful, lastSuccessfulTransition will have already been set. Therefore we
                // can safely set currentNavigation to null here.
                this.currentNavigation = null;
            })), catchError((/**
             * @param {?} e
             * @return {?}
             */
            (e) => {
                errored = true;
                /* This error type is issued during Redirect, and is handled as a cancellation
                 * rather than an error. */
                if (isNavigationCancelingError(e)) {
                    /** @type {?} */
                    const redirecting = isUrlTree(e.url);
                    if (!redirecting) {
                        // Set property only if we're not redirecting. If we landed on a page and
                        // redirect to `/` route, the new navigation is going to see the `/` isn't
                        // a change from the default currentUrlTree and won't navigate. This is
                        // only applicable with initial navigation, so setting `navigated` only when
                        // not redirecting resolves this scenario.
                        this.navigated = true;
                        this.resetStateAndUrl(t.currentRouterState, t.currentUrlTree, t.rawUrl);
                    }
                    /** @type {?} */
                    const navCancel = new NavigationCancel(t.id, this.serializeUrl(t.extractedUrl), e.message);
                    eventsSubject.next(navCancel);
                    t.resolve(false);
                    if (redirecting) {
                        this.navigateByUrl(e.url);
                    }
                    /* All other errors should reset to the router's internal URL reference to the
                     * pre-error state. */
                }
                else {
                    this.resetStateAndUrl(t.currentRouterState, t.currentUrlTree, t.rawUrl);
                    /** @type {?} */
                    const navError = new NavigationError(t.id, this.serializeUrl(t.extractedUrl), e);
                    eventsSubject.next(navError);
                    try {
                        t.resolve(this.errorHandler(e));
                    }
                    catch (ee) {
                        t.reject(ee);
                    }
                }
                return EMPTY;
            })));
            // TODO(jasonaden): remove cast once g3 is on updated TypeScript
        })))))));
    }
    /**
     * \@internal
     * TODO: this should be removed once the constructor of the router made internal
     * @param {?} rootComponentType
     * @return {?}
     */
    resetRootComponentType(rootComponentType) {
        this.rootComponentType = rootComponentType;
        // TODO: vsavkin router 4.0 should make the root component set to null
        // this will simplify the lifecycle of the router.
        this.routerState.root.component = this.rootComponentType;
    }
    /**
     * @private
     * @return {?}
     */
    getTransition() {
        /** @type {?} */
        const transition = this.transitions.value;
        // This value needs to be set. Other values such as extractedUrl are set on initial navigation
        // but the urlAfterRedirects may not get set if we aren't processing the new URL *and* not
        // processing the previous URL.
        transition.urlAfterRedirects = this.browserUrlTree;
        return transition;
    }
    /**
     * @private
     * @param {?} t
     * @return {?}
     */
    setTransition(t) {
        this.transitions.next(Object.assign({}, this.getTransition(), t));
    }
    /**
     * Sets up the location change listener and performs the initial navigation.
     * @return {?}
     */
    initialNavigation() {
        this.setUpLocationChangeListener();
        if (this.navigationId === 0) {
            this.navigateByUrl(this.location.path(true), { replaceUrl: true });
        }
    }
    /**
     * Sets up the location change listener.
     * @return {?}
     */
    setUpLocationChangeListener() {
        // Don't need to use Zone.wrap any more, because zone.js
        // already patch onPopState, so location change callback will
        // run into ngZone
        if (!this.locationSubscription) {
            this.locationSubscription = (/** @type {?} */ (this.location.subscribe((/**
             * @param {?} change
             * @return {?}
             */
            (change) => {
                /** @type {?} */
                let rawUrlTree = this.parseUrl(change['url']);
                /** @type {?} */
                const source = change['type'] === 'popstate' ? 'popstate' : 'hashchange';
                // Navigations coming from Angular router have a navigationId state property. When this
                // exists, restore the state.
                /** @type {?} */
                const state = change.state && change.state.navigationId ? change.state : null;
                setTimeout((/**
                 * @return {?}
                 */
                () => { this.scheduleNavigation(rawUrlTree, source, state, { replaceUrl: true }); }), 0);
            }))));
        }
    }
    /**
     * The current URL.
     * @return {?}
     */
    get url() { return this.serializeUrl(this.currentUrlTree); }
    /**
     * The current Navigation object if one exists
     * @return {?}
     */
    getCurrentNavigation() { return this.currentNavigation; }
    /**
     * \@internal
     * @param {?} event
     * @return {?}
     */
    triggerEvent(event) { ((/** @type {?} */ (this.events))).next(event); }
    /**
     * Resets the configuration used for navigation and generating links.
     *
     * \@usageNotes
     *
     * ```
     * router.resetConfig([
     *  { path: 'team/:id', component: TeamCmp, children: [
     *    { path: 'simple', component: SimpleCmp },
     *    { path: 'user/:name', component: UserCmp }
     *  ]}
     * ]);
     * ```
     * @param {?} config The route array for the new configuration.
     *
     * @return {?}
     */
    resetConfig(config) {
        validateConfig(config);
        this.config = config.map(standardizeConfig);
        this.navigated = false;
        this.lastSuccessfulId = -1;
    }
    /**
     * \@docsNotRequired
     * @return {?}
     */
    ngOnDestroy() { this.dispose(); }
    /**
     * Disposes of the router.
     * @return {?}
     */
    dispose() {
        if (this.locationSubscription) {
            this.locationSubscription.unsubscribe();
            this.locationSubscription = (/** @type {?} */ (null));
        }
    }
    /**
     * Applies an array of commands to the current URL tree and creates a new URL tree.
     *
     * When given an activate route, applies the given commands starting from the route.
     * When not given a route, applies the given command starting from the root.
     *
     * \@usageNotes
     *
     * ```
     * // create /team/33/user/11
     * router.createUrlTree(['/team', 33, 'user', 11]);
     *
     * // create /team/33;expand=true/user/11
     * router.createUrlTree(['/team', 33, {expand: true}, 'user', 11]);
     *
     * // you can collapse static segments like this (this works only with the first passed-in value):
     * router.createUrlTree(['/team/33/user', userId]);
     *
     * // If the first segment can contain slashes, and you do not want the router to split it, you
     * // can do the following:
     *
     * router.createUrlTree([{segmentPath: '/one/two'}]);
     *
     * // create /team/33/(user/11//right:chat)
     * router.createUrlTree(['/team', 33, {outlets: {primary: 'user/11', right: 'chat'}}]);
     *
     * // remove the right secondary node
     * router.createUrlTree(['/team', 33, {outlets: {primary: 'user/11', right: null}}]);
     *
     * // assuming the current url is `/team/33/user/11` and the route points to `user/11`
     *
     * // navigate to /team/33/user/11/details
     * router.createUrlTree(['details'], {relativeTo: route});
     *
     * // navigate to /team/33/user/22
     * router.createUrlTree(['../22'], {relativeTo: route});
     *
     * // navigate to /team/44/user/22
     * router.createUrlTree(['../../team/44/user/22'], {relativeTo: route});
     * ```
     * @param {?} commands An array of commands to apply.
     * @param {?=} navigationExtras
     * @return {?} The new URL tree.
     *
     */
    createUrlTree(commands, navigationExtras = {}) {
        const { relativeTo, queryParams, fragment, preserveQueryParams, queryParamsHandling, preserveFragment } = navigationExtras;
        if (isDevMode() && preserveQueryParams && (/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {
            console.warn('preserveQueryParams is deprecated, use queryParamsHandling instead.');
        }
        /** @type {?} */
        const a = relativeTo || this.routerState.root;
        /** @type {?} */
        const f = preserveFragment ? this.currentUrlTree.fragment : fragment;
        /** @type {?} */
        let q = null;
        if (queryParamsHandling) {
            switch (queryParamsHandling) {
                case 'merge':
                    q = Object.assign({}, this.currentUrlTree.queryParams, queryParams);
                    break;
                case 'preserve':
                    q = this.currentUrlTree.queryParams;
                    break;
                default:
                    q = queryParams || null;
            }
        }
        else {
            q = preserveQueryParams ? this.currentUrlTree.queryParams : queryParams || null;
        }
        if (q !== null) {
            q = this.removeEmptyProps(q);
        }
        return createUrlTree(a, this.currentUrlTree, commands, (/** @type {?} */ (q)), (/** @type {?} */ (f)));
    }
    /**
     * Navigate based on the provided URL, which must be absolute.
     *
     * \@usageNotes
     *
     * ### Example
     *
     * ```
     * router.navigateByUrl("/team/33/user/11");
     *
     * // Navigate without updating the URL
     * router.navigateByUrl("/team/33/user/11", { skipLocationChange: true });
     * ```
     *
     * @param {?} url An absolute URL. The function does not apply any delta to the current URL.
     * @param {?=} extras An object containing properties that modify the navigation strategy.
     * The function ignores any properties in the `NavigationExtras` that would change the
     * provided URL.
     *
     * @return {?} A Promise that resolves to 'true' when navigation succeeds,
     * to 'false' when navigation fails, or is rejected on error.
     *
     */
    navigateByUrl(url, extras = { skipLocationChange: false }) {
        if (isDevMode() && this.isNgZoneEnabled && !NgZone.isInAngularZone()) {
            this.console.warn(`Navigation triggered outside Angular zone, did you forget to call 'ngZone.run()'?`);
        }
        /** @type {?} */
        const urlTree = isUrlTree(url) ? url : this.parseUrl(url);
        /** @type {?} */
        const mergedTree = this.urlHandlingStrategy.merge(urlTree, this.rawUrlTree);
        return this.scheduleNavigation(mergedTree, 'imperative', null, extras);
    }
    /**
     * Navigate based on the provided array of commands and a starting point.
     * If no starting route is provided, the navigation is absolute.
     *
     * Returns a promise that:
     * - resolves to 'true' when navigation succeeds,
     * - resolves to 'false' when navigation fails,
     * - is rejected when an error happens.
     *
     * \@usageNotes
     *
     * ### Example
     *
     * ```
     * router.navigate(['team', 33, 'user', 11], {relativeTo: route});
     *
     * // Navigate without updating the URL
     * router.navigate(['team', 33, 'user', 11], {relativeTo: route, skipLocationChange: true});
     * ```
     *
     * The first parameter of `navigate()` is a delta to be applied to the current URL
     * or the one provided in the `relativeTo` property of the second parameter (the
     * `NavigationExtras`).
     *
     * In order to affect this browser's `history.state` entry, the `state`
     * parameter can be passed. This must be an object because the router
     * will add the `navigationId` property to this object before creating
     * the new history item.
     * @param {?} commands
     * @param {?=} extras
     * @return {?}
     */
    navigate(commands, extras = { skipLocationChange: false }) {
        validateCommands(commands);
        return this.navigateByUrl(this.createUrlTree(commands, extras), extras);
    }
    /**
     * Serializes a `UrlTree` into a string
     * @param {?} url
     * @return {?}
     */
    serializeUrl(url) { return this.urlSerializer.serialize(url); }
    /**
     * Parses a string into a `UrlTree`
     * @param {?} url
     * @return {?}
     */
    parseUrl(url) {
        /** @type {?} */
        let urlTree;
        try {
            urlTree = this.urlSerializer.parse(url);
        }
        catch (e) {
            urlTree = this.malformedUriErrorHandler(e, this.urlSerializer, url);
        }
        return urlTree;
    }
    /**
     * Returns whether the url is activated
     * @param {?} url
     * @param {?} exact
     * @return {?}
     */
    isActive(url, exact) {
        if (isUrlTree(url)) {
            return containsTree(this.currentUrlTree, url, exact);
        }
        /** @type {?} */
        const urlTree = this.parseUrl(url);
        return containsTree(this.currentUrlTree, urlTree, exact);
    }
    /**
     * @private
     * @param {?} params
     * @return {?}
     */
    removeEmptyProps(params) {
        return Object.keys(params).reduce((/**
         * @param {?} result
         * @param {?} key
         * @return {?}
         */
        (result, key) => {
            /** @type {?} */
            const value = params[key];
            if (value !== null && value !== undefined) {
                result[key] = value;
            }
            return result;
        }), {});
    }
    /**
     * @private
     * @return {?}
     */
    processNavigations() {
        this.navigations.subscribe((/**
         * @param {?} t
         * @return {?}
         */
        t => {
            this.navigated = true;
            this.lastSuccessfulId = t.id;
            ((/** @type {?} */ (this.events)))
                .next(new NavigationEnd(t.id, this.serializeUrl(t.extractedUrl), this.serializeUrl(this.currentUrlTree)));
            this.lastSuccessfulNavigation = this.currentNavigation;
            this.currentNavigation = null;
            t.resolve(true);
        }), (/**
         * @param {?} e
         * @return {?}
         */
        e => { this.console.warn(`Unhandled Navigation Error: `); }));
    }
    /**
     * @private
     * @param {?} rawUrl
     * @param {?} source
     * @param {?} restoredState
     * @param {?} extras
     * @return {?}
     */
    scheduleNavigation(rawUrl, source, restoredState, extras) {
        /** @type {?} */
        const lastNavigation = this.getTransition();
        // If the user triggers a navigation imperatively (e.g., by using navigateByUrl),
        // and that navigation results in 'replaceState' that leads to the same URL,
        // we should skip those.
        if (lastNavigation && source !== 'imperative' && lastNavigation.source === 'imperative' &&
            lastNavigation.rawUrl.toString() === rawUrl.toString()) {
            return Promise.resolve(true); // return value is not used
        }
        // Because of a bug in IE and Edge, the location class fires two events (popstate and
        // hashchange) every single time. The second one should be ignored. Otherwise, the URL will
        // flicker. Handles the case when a popstate was emitted first.
        if (lastNavigation && source == 'hashchange' && lastNavigation.source === 'popstate' &&
            lastNavigation.rawUrl.toString() === rawUrl.toString()) {
            return Promise.resolve(true); // return value is not used
        }
        // Because of a bug in IE and Edge, the location class fires two events (popstate and
        // hashchange) every single time. The second one should be ignored. Otherwise, the URL will
        // flicker. Handles the case when a hashchange was emitted first.
        if (lastNavigation && source == 'popstate' && lastNavigation.source === 'hashchange' &&
            lastNavigation.rawUrl.toString() === rawUrl.toString()) {
            return Promise.resolve(true); // return value is not used
        }
        /** @type {?} */
        let resolve = null;
        /** @type {?} */
        let reject = null;
        /** @type {?} */
        const promise = new Promise((/**
         * @param {?} res
         * @param {?} rej
         * @return {?}
         */
        (res, rej) => {
            resolve = res;
            reject = rej;
        }));
        /** @type {?} */
        const id = ++this.navigationId;
        this.setTransition({
            id,
            source,
            restoredState,
            currentUrlTree: this.currentUrlTree,
            currentRawUrl: this.rawUrlTree, rawUrl, extras, resolve, reject, promise,
            currentSnapshot: this.routerState.snapshot,
            currentRouterState: this.routerState
        });
        // Make sure that the error is propagated even though `processNavigations` catch
        // handler does not rethrow
        return promise.catch((/**
         * @param {?} e
         * @return {?}
         */
        (e) => { return Promise.reject(e); }));
    }
    /**
     * @private
     * @param {?} url
     * @param {?} replaceUrl
     * @param {?} id
     * @param {?=} state
     * @return {?}
     */
    setBrowserUrl(url, replaceUrl, id, state) {
        /** @type {?} */
        const path = this.urlSerializer.serialize(url);
        state = state || {};
        if (this.location.isCurrentPathEqualTo(path) || replaceUrl) {
            // TODO(jasonaden): Remove first `navigationId` and rely on `ng` namespace.
            this.location.replaceState(path, '', Object.assign({}, state, { navigationId: id }));
        }
        else {
            this.location.go(path, '', Object.assign({}, state, { navigationId: id }));
        }
    }
    /**
     * @private
     * @param {?} storedState
     * @param {?} storedUrl
     * @param {?} rawUrl
     * @return {?}
     */
    resetStateAndUrl(storedState, storedUrl, rawUrl) {
        ((/** @type {?} */ (this))).routerState = storedState;
        this.currentUrlTree = storedUrl;
        this.rawUrlTree = this.urlHandlingStrategy.merge(this.currentUrlTree, rawUrl);
        this.resetUrlToCurrentUrlTree();
    }
    /**
     * @private
     * @return {?}
     */
    resetUrlToCurrentUrlTree() {
        this.location.replaceState(this.urlSerializer.serialize(this.rawUrlTree), '', { navigationId: this.lastSuccessfulId });
    }
}
/**
 * @param {?} commands
 * @return {?}
 */
function validateCommands(commands) {
    for (let i = 0; i < commands.length; i++) {
        /** @type {?} */
        const cmd = commands[i];
        if (cmd == null) {
            throw new Error(`The requested path contains ${cmd} segment at index ${i}`);
        }
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@description
 *
 * Lets you link to specific routes in your app.
 *
 * Consider the following route configuration:
 * `[{ path: 'user/:name', component: UserCmp }]`.
 * When linking to this `user/:name` route, you use the `RouterLink` directive.
 *
 * If the link is static, you can use the directive as follows:
 * `<a routerLink="/user/bob">link to user component</a>`
 *
 * If you use dynamic values to generate the link, you can pass an array of path
 * segments, followed by the params for each segment.
 *
 * For instance `['/team', teamId, 'user', userName, {details: true}]`
 * means that we want to generate a link to `/team/11/user/bob;details=true`.
 *
 * Multiple static segments can be merged into one
 * (e.g., `['/team/11/user', userName, {details: true}]`).
 *
 * The first segment name can be prepended with `/`, `./`, or `../`:
 * * If the first segment begins with `/`, the router will look up the route from the root of the
 *   app.
 * * If the first segment begins with `./`, or doesn't begin with a slash, the router will
 *   instead look in the children of the current activated route.
 * * And if the first segment begins with `../`, the router will go up one level.
 *
 * You can set query params and fragment as follows:
 *
 * ```
 * <a [routerLink]="['/user/bob']" [queryParams]="{debug: true}" fragment="education">
 *   link to user component
 * </a>
 * ```
 * RouterLink will use these to generate this link: `/user/bob#education?debug=true`.
 *
 * (Deprecated in v4.0.0 use `queryParamsHandling` instead) You can also tell the
 * directive to preserve the current query params and fragment:
 *
 * ```
 * <a [routerLink]="['/user/bob']" preserveQueryParams preserveFragment>
 *   link to user component
 * </a>
 * ```
 *
 * You can tell the directive how to handle queryParams. Available options are:
 *  - `'merge'`: merge the queryParams into the current queryParams
 *  - `'preserve'`: preserve the current queryParams
 *  - default/`''`: use the queryParams only
 *
 * Same options for {\@link NavigationExtras#queryParamsHandling
 * NavigationExtras#queryParamsHandling}.
 *
 * ```
 * <a [routerLink]="['/user/bob']" [queryParams]="{debug: true}" queryParamsHandling="merge">
 *   link to user component
 * </a>
 * ```
 *
 * You can provide a `state` value to be persisted to the browser's History.state
 * property (See https://developer.mozilla.org/en-US/docs/Web/API/History#Properties). It's
 * used as follows:
 *
 * ```
 * <a [routerLink]="['/user/bob']" [state]="{tracingId: 123}">
 *   link to user component
 * </a>
 * ```
 *
 * And later the value can be read from the router through `router.getCurrentNavigation`.
 * For example, to capture the `tracingId` above during the `NavigationStart` event:
 *
 * ```
 * // Get NavigationStart events
 * router.events.pipe(filter(e => e instanceof NavigationStart)).subscribe(e => {
 *   const navigation = router.getCurrentNavigation();
 *   tracingService.trace({id: navigation.extras.state.tracingId});
 * });
 * ```
 *
 * The router link directive always treats the provided input as a delta to the current url.
 *
 * For instance, if the current url is `/user/(box//aux:team)`.
 *
 * Then the following link `<a [routerLink]="['/user/jim']">Jim</a>` will generate the link
 * `/user/(jim//aux:team)`.
 *
 * See {\@link Router#createUrlTree createUrlTree} for more information.
 *
 * \@ngModule RouterModule
 *
 * \@publicApi
 */
class RouterLink {
    /**
     * @param {?} router
     * @param {?} route
     * @param {?} tabIndex
     * @param {?} renderer
     * @param {?} el
     */
    constructor(router, route, tabIndex, renderer, el) {
        this.router = router;
        this.route = route;
        this.commands = [];
        if (tabIndex == null) {
            renderer.setAttribute(el.nativeElement, 'tabindex', '0');
        }
    }
    /**
     * @param {?} commands
     * @return {?}
     */
    set routerLink(commands) {
        if (commands != null) {
            this.commands = Array.isArray(commands) ? commands : [commands];
        }
        else {
            this.commands = [];
        }
    }
    /**
     * @deprecated 4.0.0 use `queryParamsHandling` instead.
     * @param {?} value
     * @return {?}
     */
    set preserveQueryParams(value) {
        if (isDevMode() && (/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {
            console.warn('preserveQueryParams is deprecated!, use queryParamsHandling instead.');
        }
        this.preserve = value;
    }
    /**
     * @return {?}
     */
    onClick() {
        /** @type {?} */
        const extras = {
            skipLocationChange: attrBoolValue(this.skipLocationChange),
            replaceUrl: attrBoolValue(this.replaceUrl),
        };
        this.router.navigateByUrl(this.urlTree, extras);
        return true;
    }
    /**
     * @return {?}
     */
    get urlTree() {
        return this.router.createUrlTree(this.commands, {
            relativeTo: this.route,
            queryParams: this.queryParams,
            fragment: this.fragment,
            preserveQueryParams: attrBoolValue(this.preserve),
            queryParamsHandling: this.queryParamsHandling,
            preserveFragment: attrBoolValue(this.preserveFragment),
        });
    }
}
RouterLink.decorators = [
    { type: Directive, args: [{ selector: ':not(a):not(area)[routerLink]' },] }
];
/** @nocollapse */
RouterLink.ctorParameters = () => [
    { type: Router },
    { type: ActivatedRoute },
    { type: String, decorators: [{ type: Attribute, args: ['tabindex',] }] },
    { type: Renderer2 },
    { type: ElementRef }
];
RouterLink.propDecorators = {
    queryParams: [{ type: Input }],
    fragment: [{ type: Input }],
    queryParamsHandling: [{ type: Input }],
    preserveFragment: [{ type: Input }],
    skipLocationChange: [{ type: Input }],
    replaceUrl: [{ type: Input }],
    state: [{ type: Input }],
    routerLink: [{ type: Input }],
    preserveQueryParams: [{ type: Input }],
    onClick: [{ type: HostListener, args: ['click',] }]
};
/**
 * \@description
 *
 * Lets you link to specific routes in your app.
 *
 * See `RouterLink` for more information.
 *
 * \@ngModule RouterModule
 *
 * \@publicApi
 */
class RouterLinkWithHref {
    /**
     * @param {?} router
     * @param {?} route
     * @param {?} locationStrategy
     */
    constructor(router, route, locationStrategy) {
        this.router = router;
        this.route = route;
        this.locationStrategy = locationStrategy;
        this.commands = [];
        this.subscription = router.events.subscribe((/**
         * @param {?} s
         * @return {?}
         */
        (s) => {
            if (s instanceof NavigationEnd) {
                this.updateTargetUrlAndHref();
            }
        }));
    }
    /**
     * @param {?} commands
     * @return {?}
     */
    set routerLink(commands) {
        if (commands != null) {
            this.commands = Array.isArray(commands) ? commands : [commands];
        }
        else {
            this.commands = [];
        }
    }
    /**
     * @param {?} value
     * @return {?}
     */
    set preserveQueryParams(value) {
        if (isDevMode() && (/** @type {?} */ (console)) && (/** @type {?} */ (console.warn))) {
            console.warn('preserveQueryParams is deprecated, use queryParamsHandling instead.');
        }
        this.preserve = value;
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) { this.updateTargetUrlAndHref(); }
    /**
     * @return {?}
     */
    ngOnDestroy() { this.subscription.unsubscribe(); }
    /**
     * @param {?} button
     * @param {?} ctrlKey
     * @param {?} metaKey
     * @param {?} shiftKey
     * @return {?}
     */
    onClick(button, ctrlKey, metaKey, shiftKey) {
        if (button !== 0 || ctrlKey || metaKey || shiftKey) {
            return true;
        }
        if (typeof this.target === 'string' && this.target != '_self') {
            return true;
        }
        /** @type {?} */
        const extras = {
            skipLocationChange: attrBoolValue(this.skipLocationChange),
            replaceUrl: attrBoolValue(this.replaceUrl),
            state: this.state
        };
        this.router.navigateByUrl(this.urlTree, extras);
        return false;
    }
    /**
     * @private
     * @return {?}
     */
    updateTargetUrlAndHref() {
        this.href = this.locationStrategy.prepareExternalUrl(this.router.serializeUrl(this.urlTree));
    }
    /**
     * @return {?}
     */
    get urlTree() {
        return this.router.createUrlTree(this.commands, {
            relativeTo: this.route,
            queryParams: this.queryParams,
            fragment: this.fragment,
            preserveQueryParams: attrBoolValue(this.preserve),
            queryParamsHandling: this.queryParamsHandling,
            preserveFragment: attrBoolValue(this.preserveFragment),
        });
    }
}
RouterLinkWithHref.decorators = [
    { type: Directive, args: [{ selector: 'a[routerLink],area[routerLink]' },] }
];
/** @nocollapse */
RouterLinkWithHref.ctorParameters = () => [
    { type: Router },
    { type: ActivatedRoute },
    { type: LocationStrategy }
];
RouterLinkWithHref.propDecorators = {
    target: [{ type: HostBinding, args: ['attr.target',] }, { type: Input }],
    queryParams: [{ type: Input }],
    fragment: [{ type: Input }],
    queryParamsHandling: [{ type: Input }],
    preserveFragment: [{ type: Input }],
    skipLocationChange: [{ type: Input }],
    replaceUrl: [{ type: Input }],
    state: [{ type: Input }],
    href: [{ type: HostBinding }],
    routerLink: [{ type: Input }],
    preserveQueryParams: [{ type: Input }],
    onClick: [{ type: HostListener, args: ['click', ['$event.button', '$event.ctrlKey', '$event.metaKey', '$event.shiftKey'],] }]
};
/**
 * @param {?} s
 * @return {?}
 */
function attrBoolValue(s) {
    return s === '' || !!s;
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 *
 * \@description
 *
 * Lets you add a CSS class to an element when the link's route becomes active.
 *
 * This directive lets you add a CSS class to an element when the link's route
 * becomes active.
 *
 * Consider the following example:
 *
 * ```
 * <a routerLink="/user/bob" routerLinkActive="active-link">Bob</a>
 * ```
 *
 * When the url is either '/user' or '/user/bob', the active-link class will
 * be added to the `a` tag. If the url changes, the class will be removed.
 *
 * You can set more than one class, as follows:
 *
 * ```
 * <a routerLink="/user/bob" routerLinkActive="class1 class2">Bob</a>
 * <a routerLink="/user/bob" [routerLinkActive]="['class1', 'class2']">Bob</a>
 * ```
 *
 * You can configure RouterLinkActive by passing `exact: true`. This will add the classes
 * only when the url matches the link exactly.
 *
 * ```
 * <a routerLink="/user/bob" routerLinkActive="active-link" [routerLinkActiveOptions]="{exact:
 * true}">Bob</a>
 * ```
 *
 * You can assign the RouterLinkActive instance to a template variable and directly check
 * the `isActive` status.
 * ```
 * <a routerLink="/user/bob" routerLinkActive #rla="routerLinkActive">
 *   Bob {{ rla.isActive ? '(already open)' : ''}}
 * </a>
 * ```
 *
 * Finally, you can apply the RouterLinkActive directive to an ancestor of a RouterLink.
 *
 * ```
 * <div routerLinkActive="active-link" [routerLinkActiveOptions]="{exact: true}">
 *   <a routerLink="/user/jim">Jim</a>
 *   <a routerLink="/user/bob">Bob</a>
 * </div>
 * ```
 *
 * This will set the active-link class on the div tag if the url is either '/user/jim' or
 * '/user/bob'.
 *
 * \@ngModule RouterModule
 *
 * \@publicApi
 */
class RouterLinkActive {
    /**
     * @param {?} router
     * @param {?} element
     * @param {?} renderer
     * @param {?=} link
     * @param {?=} linkWithHref
     */
    constructor(router, element, renderer, link, linkWithHref) {
        this.router = router;
        this.element = element;
        this.renderer = renderer;
        this.link = link;
        this.linkWithHref = linkWithHref;
        this.classes = [];
        this.isActive = false;
        this.routerLinkActiveOptions = { exact: false };
        this.subscription = router.events.subscribe((/**
         * @param {?} s
         * @return {?}
         */
        (s) => {
            if (s instanceof NavigationEnd) {
                this.update();
            }
        }));
    }
    /**
     * @return {?}
     */
    ngAfterContentInit() {
        this.links.changes.subscribe((/**
         * @param {?} _
         * @return {?}
         */
        _ => this.update()));
        this.linksWithHrefs.changes.subscribe((/**
         * @param {?} _
         * @return {?}
         */
        _ => this.update()));
        this.update();
    }
    /**
     * @param {?} data
     * @return {?}
     */
    set routerLinkActive(data) {
        /** @type {?} */
        const classes = Array.isArray(data) ? data : data.split(' ');
        this.classes = classes.filter((/**
         * @param {?} c
         * @return {?}
         */
        c => !!c));
    }
    /**
     * @param {?} changes
     * @return {?}
     */
    ngOnChanges(changes) { this.update(); }
    /**
     * @return {?}
     */
    ngOnDestroy() { this.subscription.unsubscribe(); }
    /**
     * @private
     * @return {?}
     */
    update() {
        if (!this.links || !this.linksWithHrefs || !this.router.navigated)
            return;
        Promise.resolve().then((/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            const hasActiveLinks = this.hasActiveLinks();
            if (this.isActive !== hasActiveLinks) {
                ((/** @type {?} */ (this))).isActive = hasActiveLinks;
                this.classes.forEach((/**
                 * @param {?} c
                 * @return {?}
                 */
                (c) => {
                    if (hasActiveLinks) {
                        this.renderer.addClass(this.element.nativeElement, c);
                    }
                    else {
                        this.renderer.removeClass(this.element.nativeElement, c);
                    }
                }));
            }
        }));
    }
    /**
     * @private
     * @param {?} router
     * @return {?}
     */
    isLinkActive(router) {
        return (/**
         * @param {?} link
         * @return {?}
         */
        (link) => router.isActive(link.urlTree, this.routerLinkActiveOptions.exact));
    }
    /**
     * @private
     * @return {?}
     */
    hasActiveLinks() {
        /** @type {?} */
        const isActiveCheckFn = this.isLinkActive(this.router);
        return this.link && isActiveCheckFn(this.link) ||
            this.linkWithHref && isActiveCheckFn(this.linkWithHref) ||
            this.links.some(isActiveCheckFn) || this.linksWithHrefs.some(isActiveCheckFn);
    }
}
RouterLinkActive.decorators = [
    { type: Directive, args: [{
                selector: '[routerLinkActive]',
                exportAs: 'routerLinkActive',
            },] }
];
/** @nocollapse */
RouterLinkActive.ctorParameters = () => [
    { type: Router },
    { type: ElementRef },
    { type: Renderer2 },
    { type: RouterLink, decorators: [{ type: Optional }] },
    { type: RouterLinkWithHref, decorators: [{ type: Optional }] }
];
RouterLinkActive.propDecorators = {
    links: [{ type: ContentChildren, args: [RouterLink, { descendants: true },] }],
    linksWithHrefs: [{ type: ContentChildren, args: [RouterLinkWithHref, { descendants: true },] }],
    routerLinkActiveOptions: [{ type: Input }],
    routerLinkActive: [{ type: Input }]
};

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * @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
 */
/**
 * Store contextual information about a `RouterOutlet`
 *
 * \@publicApi
 */
class OutletContext {
    constructor() {
        this.outlet = null;
        this.route = null;
        this.resolver = null;
        this.children = new ChildrenOutletContexts();
        this.attachRef = null;
    }
}
/**
 * Store contextual information about the children (= nested) `RouterOutlet`
 *
 * \@publicApi
 */
class ChildrenOutletContexts {
    constructor() {
        // contexts for child outlets, by name.
        this.contexts = new Map();
    }
    /**
     * Called when a `RouterOutlet` directive is instantiated
     * @param {?} childName
     * @param {?} outlet
     * @return {?}
     */
    onChildOutletCreated(childName, outlet) {
        /** @type {?} */
        const context = this.getOrCreateContext(childName);
        context.outlet = outlet;
        this.contexts.set(childName, context);
    }
    /**
     * Called when a `RouterOutlet` directive is destroyed.
     * We need to keep the context as the outlet could be destroyed inside a NgIf and might be
     * re-created later.
     * @param {?} childName
     * @return {?}
     */
    onChildOutletDestroyed(childName) {
        /** @type {?} */
        const context = this.getContext(childName);
        if (context) {
            context.outlet = null;
        }
    }
    /**
     * Called when the corresponding route is deactivated during navigation.
     * Because the component get destroyed, all children outlet are destroyed.
     * @return {?}
     */
    onOutletDeactivated() {
        /** @type {?} */
        const contexts = this.contexts;
        this.contexts = new Map();
        return contexts;
    }
    /**
     * @param {?} contexts
     * @return {?}
     */
    onOutletReAttached(contexts) { this.contexts = contexts; }
    /**
     * @param {?} childName
     * @return {?}
     */
    getOrCreateContext(childName) {
        /** @type {?} */
        let context = this.getContext(childName);
        if (!context) {
            context = new OutletContext();
            this.contexts.set(childName, context);
        }
        return context;
    }
    /**
     * @param {?} childName
     * @return {?}
     */
    getContext(childName) { return this.contexts.get(childName) || null; }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@description
 *
 * Acts as a placeholder that Angular dynamically fills based on the current router state.
 *
 * ```
 * <router-outlet></router-outlet>
 * <router-outlet name='left'></router-outlet>
 * <router-outlet name='right'></router-outlet>
 * ```
 *
 * A router outlet will emit an activate event any time a new component is being instantiated,
 * and a deactivate event when it is being destroyed.
 *
 * ```
 * <router-outlet
 *   (activate)='onActivate($event)'
 *   (deactivate)='onDeactivate($event)'></router-outlet>
 * ```
 * \@ngModule RouterModule
 *
 * \@publicApi
 */
class RouterOutlet {
    /**
     * @param {?} parentContexts
     * @param {?} location
     * @param {?} resolver
     * @param {?} name
     * @param {?} changeDetector
     */
    constructor(parentContexts, location, resolver, name, changeDetector) {
        this.parentContexts = parentContexts;
        this.location = location;
        this.resolver = resolver;
        this.changeDetector = changeDetector;
        this.activated = null;
        this._activatedRoute = null;
        this.activateEvents = new EventEmitter();
        this.deactivateEvents = new EventEmitter();
        this.name = name || PRIMARY_OUTLET;
        parentContexts.onChildOutletCreated(this.name, this);
    }
    /**
     * @return {?}
     */
    ngOnDestroy() { this.parentContexts.onChildOutletDestroyed(this.name); }
    /**
     * @return {?}
     */
    ngOnInit() {
        if (!this.activated) {
            // If the outlet was not instantiated at the time the route got activated we need to populate
            // the outlet when it is initialized (ie inside a NgIf)
            /** @type {?} */
            const context = this.parentContexts.getContext(this.name);
            if (context && context.route) {
                if (context.attachRef) {
                    // `attachRef` is populated when there is an existing component to mount
                    this.attach(context.attachRef, context.route);
                }
                else {
                    // otherwise the component defined in the configuration is created
                    this.activateWith(context.route, context.resolver || null);
                }
            }
        }
    }
    /**
     * @return {?}
     */
    get isActivated() { return !!this.activated; }
    /**
     * @return {?}
     */
    get component() {
        if (!this.activated)
            throw new Error('Outlet is not activated');
        return this.activated.instance;
    }
    /**
     * @return {?}
     */
    get activatedRoute() {
        if (!this.activated)
            throw new Error('Outlet is not activated');
        return (/** @type {?} */ (this._activatedRoute));
    }
    /**
     * @return {?}
     */
    get activatedRouteData() {
        if (this._activatedRoute) {
            return this._activatedRoute.snapshot.data;
        }
        return {};
    }
    /**
     * Called when the `RouteReuseStrategy` instructs to detach the subtree
     * @return {?}
     */
    detach() {
        if (!this.activated)
            throw new Error('Outlet is not activated');
        this.location.detach();
        /** @type {?} */
        const cmp = this.activated;
        this.activated = null;
        this._activatedRoute = null;
        return cmp;
    }
    /**
     * Called when the `RouteReuseStrategy` instructs to re-attach a previously detached subtree
     * @param {?} ref
     * @param {?} activatedRoute
     * @return {?}
     */
    attach(ref, activatedRoute) {
        this.activated = ref;
        this._activatedRoute = activatedRoute;
        this.location.insert(ref.hostView);
    }
    /**
     * @return {?}
     */
    deactivate() {
        if (this.activated) {
            /** @type {?} */
            const c = this.component;
            this.activated.destroy();
            this.activated = null;
            this._activatedRoute = null;
            this.deactivateEvents.emit(c);
        }
    }
    /**
     * @param {?} activatedRoute
     * @param {?} resolver
     * @return {?}
     */
    activateWith(activatedRoute, resolver) {
        if (this.isActivated) {
            throw new Error('Cannot activate an already activated outlet');
        }
        this._activatedRoute = activatedRoute;
        /** @type {?} */
        const snapshot = activatedRoute._futureSnapshot;
        /** @type {?} */
        const component = (/** @type {?} */ ((/** @type {?} */ (snapshot.routeConfig)).component));
        resolver = resolver || this.resolver;
        /** @type {?} */
        const factory = resolver.resolveComponentFactory(component);
        /** @type {?} */
        const childContexts = this.parentContexts.getOrCreateContext(this.name).children;
        /** @type {?} */
        const injector = new OutletInjector(activatedRoute, childContexts, this.location.injector);
        this.activated = this.location.createComponent(factory, this.location.length, injector);
        // Calling `markForCheck` to make sure we will run the change detection when the
        // `RouterOutlet` is inside a `ChangeDetectionStrategy.OnPush` component.
        this.changeDetector.markForCheck();
        this.activateEvents.emit(this.activated.instance);
    }
}
RouterOutlet.decorators = [
    { type: Directive, args: [{ selector: 'router-outlet', exportAs: 'outlet' },] }
];
/** @nocollapse */
RouterOutlet.ctorParameters = () => [
    { type: ChildrenOutletContexts },
    { type: ViewContainerRef },
    { type: ComponentFactoryResolver },
    { type: String, decorators: [{ type: Attribute, args: ['name',] }] },
    { type: ChangeDetectorRef }
];
RouterOutlet.propDecorators = {
    activateEvents: [{ type: Output, args: ['activate',] }],
    deactivateEvents: [{ type: Output, args: ['deactivate',] }]
};
class OutletInjector {
    /**
     * @param {?} route
     * @param {?} childContexts
     * @param {?} parent
     */
    constructor(route, childContexts, parent) {
        this.route = route;
        this.childContexts = childContexts;
        this.parent = parent;
    }
    /**
     * @param {?} token
     * @param {?=} notFoundValue
     * @return {?}
     */
    get(token, notFoundValue) {
        if (token === ActivatedRoute) {
            return this.route;
        }
        if (token === ChildrenOutletContexts) {
            return this.childContexts;
        }
        return this.parent.get(token, notFoundValue);
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@description
 *
 * Provides a preloading strategy.
 *
 * \@publicApi
 * @abstract
 */
class PreloadingStrategy {
}
/**
 * \@description
 *
 * Provides a preloading strategy that preloads all modules as quickly as possible.
 *
 * ```
 * RouteModule.forRoot(ROUTES, {preloadingStrategy: PreloadAllModules})
 * ```
 *
 * \@publicApi
 */
class PreloadAllModules {
    /**
     * @param {?} route
     * @param {?} fn
     * @return {?}
     */
    preload(route, fn) {
        return fn().pipe(catchError((/**
         * @return {?}
         */
        () => of(null))));
    }
}
/**
 * \@description
 *
 * Provides a preloading strategy that does not preload any modules.
 *
 * This strategy is enabled by default.
 *
 * \@publicApi
 */
class NoPreloading {
    /**
     * @param {?} route
     * @param {?} fn
     * @return {?}
     */
    preload(route, fn) { return of(null); }
}
/**
 * The preloader optimistically loads all router configurations to
 * make navigations into lazily-loaded sections of the application faster.
 *
 * The preloader runs in the background. When the router bootstraps, the preloader
 * starts listening to all navigation events. After every such event, the preloader
 * will check if any configurations can be loaded lazily.
 *
 * If a route is protected by `canLoad` guards, the preloaded will not load it.
 *
 * \@publicApi
 */
class RouterPreloader {
    /**
     * @param {?} router
     * @param {?} moduleLoader
     * @param {?} compiler
     * @param {?} injector
     * @param {?} preloadingStrategy
     */
    constructor(router, moduleLoader, compiler, injector, preloadingStrategy) {
        this.router = router;
        this.injector = injector;
        this.preloadingStrategy = preloadingStrategy;
        /** @type {?} */
        const onStartLoad = (/**
         * @param {?} r
         * @return {?}
         */
        (r) => router.triggerEvent(new RouteConfigLoadStart(r)));
        /** @type {?} */
        const onEndLoad = (/**
         * @param {?} r
         * @return {?}
         */
        (r) => router.triggerEvent(new RouteConfigLoadEnd(r)));
        this.loader = new RouterConfigLoader(moduleLoader, compiler, onStartLoad, onEndLoad);
    }
    /**
     * @return {?}
     */
    setUpPreloading() {
        this.subscription =
            this.router.events
                .pipe(filter((/**
             * @param {?} e
             * @return {?}
             */
            (e) => e instanceof NavigationEnd)), concatMap((/**
             * @return {?}
             */
            () => this.preload())))
                .subscribe((/**
             * @return {?}
             */
            () => { }));
    }
    /**
     * @return {?}
     */
    preload() {
        /** @type {?} */
        const ngModule = this.injector.get(NgModuleRef);
        return this.processRoutes(ngModule, this.router.config);
    }
    // TODO(jasonaden): This class relies on code external to the class to call setUpPreloading. If
    // this hasn't been done, ngOnDestroy will fail as this.subscription will be undefined. This
    // should be refactored.
    /**
     * @return {?}
     */
    ngOnDestroy() { this.subscription.unsubscribe(); }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} routes
     * @return {?}
     */
    processRoutes(ngModule, routes) {
        /** @type {?} */
        const res = [];
        for (const route of routes) {
            // we already have the config loaded, just recurse
            if (route.loadChildren && !route.canLoad && route._loadedConfig) {
                /** @type {?} */
                const childConfig = route._loadedConfig;
                res.push(this.processRoutes(childConfig.module, childConfig.routes));
                // no config loaded, fetch the config
            }
            else if (route.loadChildren && !route.canLoad) {
                res.push(this.preloadConfig(ngModule, route));
                // recurse into children
            }
            else if (route.children) {
                res.push(this.processRoutes(ngModule, route.children));
            }
        }
        return from(res).pipe(mergeAll(), map((/**
         * @param {?} _
         * @return {?}
         */
        (_) => void 0)));
    }
    /**
     * @private
     * @param {?} ngModule
     * @param {?} route
     * @return {?}
     */
    preloadConfig(ngModule, route) {
        return this.preloadingStrategy.preload(route, (/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            const loaded$ = this.loader.load(ngModule.injector, route);
            return loaded$.pipe(mergeMap((/**
             * @param {?} config
             * @return {?}
             */
            (config) => {
                route._loadedConfig = config;
                return this.processRoutes(config.module, config.routes);
            })));
        }));
    }
}
RouterPreloader.decorators = [
    { type: Injectable }
];
/** @nocollapse */
RouterPreloader.ctorParameters = () => [
    { type: Router },
    { type: NgModuleFactoryLoader },
    { type: Compiler },
    { type: Injector },
    { type: PreloadingStrategy }
];

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
class RouterScroller {
    /**
     * @param {?} router
     * @param {?} viewportScroller
     * @param {?=} options
     */
    constructor(router, viewportScroller, options = {}) {
        this.router = router;
        this.viewportScroller = viewportScroller;
        this.options = options;
        this.lastId = 0;
        this.lastSource = 'imperative';
        this.restoredId = 0;
        this.store = {};
        // Default both options to 'disabled'
        options.scrollPositionRestoration = options.scrollPositionRestoration || 'disabled';
        options.anchorScrolling = options.anchorScrolling || 'disabled';
    }
    /**
     * @return {?}
     */
    init() {
        // we want to disable the automatic scrolling because having two places
        // responsible for scrolling results race conditions, especially given
        // that browser don't implement this behavior consistently
        if (this.options.scrollPositionRestoration !== 'disabled') {
            this.viewportScroller.setHistoryScrollRestoration('manual');
        }
        this.routerEventsSubscription = this.createScrollEvents();
        this.scrollEventsSubscription = this.consumeScrollEvents();
    }
    /**
     * @private
     * @return {?}
     */
    createScrollEvents() {
        return this.router.events.subscribe((/**
         * @param {?} e
         * @return {?}
         */
        e => {
            if (e instanceof NavigationStart) {
                // store the scroll position of the current stable navigations.
                this.store[this.lastId] = this.viewportScroller.getScrollPosition();
                this.lastSource = e.navigationTrigger;
                this.restoredId = e.restoredState ? e.restoredState.navigationId : 0;
            }
            else if (e instanceof NavigationEnd) {
                this.lastId = e.id;
                this.scheduleScrollEvent(e, this.router.parseUrl(e.urlAfterRedirects).fragment);
            }
        }));
    }
    /**
     * @private
     * @return {?}
     */
    consumeScrollEvents() {
        return this.router.events.subscribe((/**
         * @param {?} e
         * @return {?}
         */
        e => {
            if (!(e instanceof Scroll))
                return;
            // a popstate event. The pop state event will always ignore anchor scrolling.
            if (e.position) {
                if (this.options.scrollPositionRestoration === 'top') {
                    this.viewportScroller.scrollToPosition([0, 0]);
                }
                else if (this.options.scrollPositionRestoration === 'enabled') {
                    this.viewportScroller.scrollToPosition(e.position);
                }
                // imperative navigation "forward"
            }
            else {
                if (e.anchor && this.options.anchorScrolling === 'enabled') {
                    this.viewportScroller.scrollToAnchor(e.anchor);
                }
                else if (this.options.scrollPositionRestoration !== 'disabled') {
                    this.viewportScroller.scrollToPosition([0, 0]);
                }
            }
        }));
    }
    /**
     * @private
     * @param {?} routerEvent
     * @param {?} anchor
     * @return {?}
     */
    scheduleScrollEvent(routerEvent, anchor) {
        this.router.triggerEvent(new Scroll(routerEvent, this.lastSource === 'popstate' ? this.store[this.restoredId] : null, anchor));
    }
    /**
     * @return {?}
     */
    ngOnDestroy() {
        if (this.routerEventsSubscription) {
            this.routerEventsSubscription.unsubscribe();
        }
        if (this.scrollEventsSubscription) {
            this.scrollEventsSubscription.unsubscribe();
        }
    }
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@description
 *
 * Contains a list of directives
 *
 *
 * @type {?}
 */
const ROUTER_DIRECTIVES = [RouterOutlet, RouterLink, RouterLinkWithHref, RouterLinkActive, ɵEmptyOutletComponent];
/**
 * \@description
 *
 * Is used in DI to configure the router.
 *
 * \@publicApi
 * @type {?}
 */
const ROUTER_CONFIGURATION = new InjectionToken('ROUTER_CONFIGURATION');
/**
 * \@docsNotRequired
 * @type {?}
 */
const ROUTER_FORROOT_GUARD = new InjectionToken('ROUTER_FORROOT_GUARD');
const ɵ0 = { enableTracing: false };
/** @type {?} */
const ROUTER_PROVIDERS = [
    Location,
    { provide: UrlSerializer, useClass: DefaultUrlSerializer },
    {
        provide: Router,
        useFactory: setupRouter,
        deps: [
            ApplicationRef, UrlSerializer, ChildrenOutletContexts, Location, Injector,
            NgModuleFactoryLoader, Compiler, ROUTES, ROUTER_CONFIGURATION,
            [UrlHandlingStrategy, new Optional()], [RouteReuseStrategy, new Optional()]
        ]
    },
    ChildrenOutletContexts,
    { provide: ActivatedRoute, useFactory: rootRoute, deps: [Router] },
    { provide: NgModuleFactoryLoader, useClass: SystemJsNgModuleLoader },
    RouterPreloader,
    NoPreloading,
    PreloadAllModules,
    { provide: ROUTER_CONFIGURATION, useValue: ɵ0 },
];
/**
 * @return {?}
 */
function routerNgProbeToken() {
    return new NgProbeToken('Router', Router);
}
/**
 * \@usageNotes
 *
 * RouterModule can be imported multiple times: once per lazily-loaded bundle.
 * Since the router deals with a global shared resource--location, we cannot have
 * more than one router service active.
 *
 * That is why there are two ways to create the module: `RouterModule.forRoot` and
 * `RouterModule.forChild`.
 *
 * * `forRoot` creates a module that contains all the directives, the given routes, and the router
 *   service itself.
 * * `forChild` creates a module that contains all the directives and the given routes, but does not
 *   include the router service.
 *
 * When registered at the root, the module should be used as follows
 *
 * ```
 * \@NgModule({
 *   imports: [RouterModule.forRoot(ROUTES)]
 * })
 * class MyNgModule {}
 * ```
 *
 * For submodules and lazy loaded submodules the module should be used as follows:
 *
 * ```
 * \@NgModule({
 *   imports: [RouterModule.forChild(ROUTES)]
 * })
 * class MyNgModule {}
 * ```
 *
 * \@description
 *
 * Adds router directives and providers.
 *
 * Managing state transitions is one of the hardest parts of building applications. This is
 * especially true on the web, where you also need to ensure that the state is reflected in the URL.
 * In addition, we often want to split applications into multiple bundles and load them on demand.
 * Doing this transparently is not trivial.
 *
 * The Angular router solves these problems. Using the router, you can declaratively specify
 * application states, manage state transitions while taking care of the URL, and load bundles on
 * demand.
 *
 * [Read this developer guide](https://angular.io/docs/ts/latest/guide/router.html) to get an
 * overview of how the router should be used.
 *
 * \@publicApi
 */
class RouterModule {
    // Note: We are injecting the Router so it gets created eagerly...
    /**
     * @param {?} guard
     * @param {?} router
     */
    constructor(guard, router) { }
    /**
     * Creates a module with all the router providers and directives. It also optionally sets up an
     * application listener to perform an initial navigation.
     *
     * Configuration Options:
     *
     * * `enableTracing` Toggles whether the router should log all navigation events to the console.
     * * `useHash` Enables the location strategy that uses the URL fragment instead of the history
     * API.
     * * `initialNavigation` Disables the initial navigation.
     * * `errorHandler` Defines a custom error handler for failed navigations.
     * * `preloadingStrategy` Configures a preloading strategy. See `PreloadAllModules`.
     * * `onSameUrlNavigation` Define what the router should do if it receives a navigation request to
     * the current URL.
     * * `scrollPositionRestoration` Configures if the scroll position needs to be restored when
     * navigating back.
     * * `anchorScrolling` Configures if the router should scroll to the element when the url has a
     * fragment.
     * * `scrollOffset` Configures the scroll offset the router will use when scrolling to an element.
     * * `paramsInheritanceStrategy` Defines how the router merges params, data and resolved data from
     * parent to child routes.
     * * `malformedUriErrorHandler` Defines a custom malformed uri error handler function. This
     * handler is invoked when encodedURI contains invalid character sequences.
     * * `urlUpdateStrategy` Defines when the router updates the browser URL. The default behavior is
     * to update after successful navigation.
     * * `relativeLinkResolution` Enables the correct relative link resolution in components with
     * empty paths.
     *
     * See `ExtraOptions` for more details about the above options.
     * @param {?} routes
     * @param {?=} config
     * @return {?}
     */
    static forRoot(routes, config) {
        return {
            ngModule: RouterModule,
            providers: [
                ROUTER_PROVIDERS,
                provideRoutes(routes),
                {
                    provide: ROUTER_FORROOT_GUARD,
                    useFactory: provideForRootGuard,
                    deps: [[Router, new Optional(), new SkipSelf()]]
                },
                { provide: ROUTER_CONFIGURATION, useValue: config ? config : {} },
                {
                    provide: LocationStrategy,
                    useFactory: provideLocationStrategy,
                    deps: [
                        PlatformLocation, [new Inject(APP_BASE_HREF), new Optional()], ROUTER_CONFIGURATION
                    ]
                },
                {
                    provide: RouterScroller,
                    useFactory: createRouterScroller,
                    deps: [Router, ViewportScroller, ROUTER_CONFIGURATION]
                },
                {
                    provide: PreloadingStrategy,
                    useExisting: config && config.preloadingStrategy ? config.preloadingStrategy :
                        NoPreloading
                },
                { provide: NgProbeToken, multi: true, useFactory: routerNgProbeToken },
                provideRouterInitializer(),
            ],
        };
    }
    /**
     * Creates a module with all the router directives and a provider registering routes.
     * @param {?} routes
     * @return {?}
     */
    static forChild(routes) {
        return { ngModule: RouterModule, providers: [provideRoutes(routes)] };
    }
}
RouterModule.decorators = [
    { type: NgModule, args: [{
                declarations: ROUTER_DIRECTIVES,
                exports: ROUTER_DIRECTIVES,
                entryComponents: [ɵEmptyOutletComponent]
            },] }
];
/** @nocollapse */
RouterModule.ctorParameters = () => [
    { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [ROUTER_FORROOT_GUARD,] }] },
    { type: Router, decorators: [{ type: Optional }] }
];
/**
 * @param {?} router
 * @param {?} viewportScroller
 * @param {?} config
 * @return {?}
 */
function createRouterScroller(router, viewportScroller, config) {
    if (config.scrollOffset) {
        viewportScroller.setOffset(config.scrollOffset);
    }
    return new RouterScroller(router, viewportScroller, config);
}
/**
 * @param {?} platformLocationStrategy
 * @param {?} baseHref
 * @param {?=} options
 * @return {?}
 */
function provideLocationStrategy(platformLocationStrategy, baseHref, options = {}) {
    return options.useHash ? new HashLocationStrategy(platformLocationStrategy, baseHref) :
        new PathLocationStrategy(platformLocationStrategy, baseHref);
}
/**
 * @param {?} router
 * @return {?}
 */
function provideForRootGuard(router) {
    if (router) {
        throw new Error(`RouterModule.forRoot() called twice. Lazy loaded modules should use RouterModule.forChild() instead.`);
    }
    return 'guarded';
}
/**
 * \@description
 *
 * Registers routes.
 *
 * \@usageNotes
 * ### Example
 *
 * ```
 * \@NgModule({
 *   imports: [RouterModule.forChild(ROUTES)],
 *   providers: [provideRoutes(EXTRA_ROUTES)]
 * })
 * class MyNgModule {}
 * ```
 *
 * \@publicApi
 * @param {?} routes
 * @return {?}
 */
function provideRoutes(routes) {
    return [
        { provide: ANALYZE_FOR_ENTRY_COMPONENTS, multi: true, useValue: routes },
        { provide: ROUTES, multi: true, useValue: routes },
    ];
}
/**
 * @param {?} ref
 * @param {?} urlSerializer
 * @param {?} contexts
 * @param {?} location
 * @param {?} injector
 * @param {?} loader
 * @param {?} compiler
 * @param {?} config
 * @param {?=} opts
 * @param {?=} urlHandlingStrategy
 * @param {?=} routeReuseStrategy
 * @return {?}
 */
function setupRouter(ref, urlSerializer, contexts, location, injector, loader, compiler, config, opts = {}, urlHandlingStrategy, routeReuseStrategy) {
    /** @type {?} */
    const router = new Router(null, urlSerializer, contexts, location, injector, loader, compiler, flatten(config));
    if (urlHandlingStrategy) {
        router.urlHandlingStrategy = urlHandlingStrategy;
    }
    if (routeReuseStrategy) {
        router.routeReuseStrategy = routeReuseStrategy;
    }
    if (opts.errorHandler) {
        router.errorHandler = opts.errorHandler;
    }
    if (opts.malformedUriErrorHandler) {
        router.malformedUriErrorHandler = opts.malformedUriErrorHandler;
    }
    if (opts.enableTracing) {
        /** @type {?} */
        const dom = ɵgetDOM();
        router.events.subscribe((/**
         * @param {?} e
         * @return {?}
         */
        (e) => {
            dom.logGroup(`Router Event: ${((/** @type {?} */ (e.constructor))).name}`);
            dom.log(e.toString());
            dom.log(e);
            dom.logGroupEnd();
        }));
    }
    if (opts.onSameUrlNavigation) {
        router.onSameUrlNavigation = opts.onSameUrlNavigation;
    }
    if (opts.paramsInheritanceStrategy) {
        router.paramsInheritanceStrategy = opts.paramsInheritanceStrategy;
    }
    if (opts.urlUpdateStrategy) {
        router.urlUpdateStrategy = opts.urlUpdateStrategy;
    }
    if (opts.relativeLinkResolution) {
        router.relativeLinkResolution = opts.relativeLinkResolution;
    }
    return router;
}
/**
 * @param {?} router
 * @return {?}
 */
function rootRoute(router) {
    return router.routerState.root;
}
/**
 * To initialize the router properly we need to do in two steps:
 *
 * We need to start the navigation in a APP_INITIALIZER to block the bootstrap if
 * a resolver or a guards executes asynchronously. Second, we need to actually run
 * activation in a BOOTSTRAP_LISTENER. We utilize the afterPreactivation
 * hook provided by the router to do that.
 *
 * The router navigation starts, reaches the point when preactivation is done, and then
 * pauses. It waits for the hook to be resolved. We then resolve it only in a bootstrap listener.
 */
class RouterInitializer {
    /**
     * @param {?} injector
     */
    constructor(injector) {
        this.injector = injector;
        this.initNavigation = false;
        this.resultOfPreactivationDone = new Subject();
    }
    /**
     * @return {?}
     */
    appInitializer() {
        /** @type {?} */
        const p = this.injector.get(LOCATION_INITIALIZED, Promise.resolve(null));
        return p.then((/**
         * @return {?}
         */
        () => {
            /** @type {?} */
            let resolve = (/** @type {?} */ (null));
            /** @type {?} */
            const res = new Promise((/**
             * @param {?} r
             * @return {?}
             */
            r => resolve = r));
            /** @type {?} */
            const router = this.injector.get(Router);
            /** @type {?} */
            const opts = this.injector.get(ROUTER_CONFIGURATION);
            if (this.isLegacyDisabled(opts) || this.isLegacyEnabled(opts)) {
                resolve(true);
            }
            else if (opts.initialNavigation === 'disabled') {
                router.setUpLocationChangeListener();
                resolve(true);
            }
            else if (opts.initialNavigation === 'enabled') {
                router.hooks.afterPreactivation = (/**
                 * @return {?}
                 */
                () => {
                    // only the initial navigation should be delayed
                    if (!this.initNavigation) {
                        this.initNavigation = true;
                        resolve(true);
                        return this.resultOfPreactivationDone;
                        // subsequent navigations should not be delayed
                    }
                    else {
                        return (/** @type {?} */ (of(null)));
                    }
                });
                router.initialNavigation();
            }
            else {
                throw new Error(`Invalid initialNavigation options: '${opts.initialNavigation}'`);
            }
            return res;
        }));
    }
    /**
     * @param {?} bootstrappedComponentRef
     * @return {?}
     */
    bootstrapListener(bootstrappedComponentRef) {
        /** @type {?} */
        const opts = this.injector.get(ROUTER_CONFIGURATION);
        /** @type {?} */
        const preloader = this.injector.get(RouterPreloader);
        /** @type {?} */
        const routerScroller = this.injector.get(RouterScroller);
        /** @type {?} */
        const router = this.injector.get(Router);
        /** @type {?} */
        const ref = this.injector.get(ApplicationRef);
        if (bootstrappedComponentRef !== ref.components[0]) {
            return;
        }
        if (this.isLegacyEnabled(opts)) {
            router.initialNavigation();
        }
        else if (this.isLegacyDisabled(opts)) {
            router.setUpLocationChangeListener();
        }
        preloader.setUpPreloading();
        routerScroller.init();
        router.resetRootComponentType(ref.componentTypes[0]);
        this.resultOfPreactivationDone.next((/** @type {?} */ (null)));
        this.resultOfPreactivationDone.complete();
    }
    /**
     * @private
     * @param {?} opts
     * @return {?}
     */
    isLegacyEnabled(opts) {
        return opts.initialNavigation === 'legacy_enabled' || opts.initialNavigation === true ||
            opts.initialNavigation === undefined;
    }
    /**
     * @private
     * @param {?} opts
     * @return {?}
     */
    isLegacyDisabled(opts) {
        return opts.initialNavigation === 'legacy_disabled' || opts.initialNavigation === false;
    }
}
RouterInitializer.decorators = [
    { type: Injectable }
];
/** @nocollapse */
RouterInitializer.ctorParameters = () => [
    { type: Injector }
];
/**
 * @param {?} r
 * @return {?}
 */
function getAppInitializer(r) {
    return r.appInitializer.bind(r);
}
/**
 * @param {?} r
 * @return {?}
 */
function getBootstrapListener(r) {
    return r.bootstrapListener.bind(r);
}
/**
 * A token for the router initializer that will be called after the app is bootstrapped.
 *
 * \@publicApi
 * @type {?}
 */
const ROUTER_INITIALIZER = new InjectionToken('Router Initializer');
/**
 * @return {?}
 */
function provideRouterInitializer() {
    return [
        RouterInitializer,
        {
            provide: APP_INITIALIZER,
            multi: true,
            useFactory: getAppInitializer,
            deps: [RouterInitializer]
        },
        { provide: ROUTER_INITIALIZER, useFactory: getBootstrapListener, deps: [RouterInitializer] },
        { provide: APP_BOOTSTRAP_LISTENER, multi: true, useExisting: ROUTER_INITIALIZER },
    ];
}

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */
/**
 * \@publicApi
 * @type {?}
 */
const VERSION = new Version('8.0.2');

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * @fileoverview added by tsickle
 * @suppress {checkTypes,extraRequire,missingOverride,missingReturn,unusedPrivateMembers,uselessCode} checked by tsc
 */

/**
 * Generated bundle index. Do not edit.
 */

export { ɵEmptyOutletComponent as ɵangular_packages_router_router_l, ɵEmptyOutletComponent, ROUTER_FORROOT_GUARD as ɵangular_packages_router_router_a, RouterInitializer as ɵangular_packages_router_router_h, createRouterScroller as ɵangular_packages_router_router_c, getAppInitializer as ɵangular_packages_router_router_i, getBootstrapListener as ɵangular_packages_router_router_j, provideForRootGuard as ɵangular_packages_router_router_e, provideLocationStrategy as ɵangular_packages_router_router_d, provideRouterInitializer as ɵangular_packages_router_router_k, rootRoute as ɵangular_packages_router_router_g, routerNgProbeToken as ɵangular_packages_router_router_b, setupRouter as ɵangular_packages_router_router_f, RouterScroller as ɵangular_packages_router_router_o, Tree as ɵangular_packages_router_router_m, TreeNode as ɵangular_packages_router_router_n, RouterLink, RouterLinkWithHref, RouterLinkActive, RouterOutlet, ActivationEnd, ActivationStart, ChildActivationEnd, ChildActivationStart, GuardsCheckEnd, GuardsCheckStart, NavigationCancel, NavigationEnd, NavigationError, NavigationStart, ResolveEnd, ResolveStart, RouteConfigLoadEnd, RouteConfigLoadStart, RouterEvent, RoutesRecognized, Scroll, RouteReuseStrategy, Router, ROUTES, ROUTER_CONFIGURATION, ROUTER_INITIALIZER, RouterModule, provideRoutes, ChildrenOutletContexts, OutletContext, NoPreloading, PreloadAllModules, PreloadingStrategy, RouterPreloader, ActivatedRoute, ActivatedRouteSnapshot, RouterState, RouterStateSnapshot, PRIMARY_OUTLET, convertToParamMap, UrlHandlingStrategy, DefaultUrlSerializer, UrlSegment, UrlSegmentGroup, UrlSerializer, UrlTree, VERSION, ROUTER_PROVIDERS as ɵROUTER_PROVIDERS, flatten as ɵflatten };
//# sourceMappingURL=router.js.map