feat: implement recognizer

modules/@angular/router/src/router_state.ts

@@ -0,0 +1,33 @@
+import { Tree, TreeNode } from './tree';
+import { UrlSegment } from './url_tree';
+import { Observable } from 'rxjs/Observable';
+import { BehaviorSubject } from 'rxjs/BehaviorSubject';
+import { ComponentFactory, Type } from '@angular/core';
+
+export type Params = { [key: string]: string };
+
+export const PRIMARY_OUTLET = "PRIMARY_OUTLET";
+
+export class RouterState extends Tree<ActivatedRoute> {
+  constructor(root: TreeNode<ActivatedRoute>, public queryParams: Observable<Params>, public fragment: Observable<string>) {
+    super(root);
+  }
+}
+
+export function createEmptyState(rootComponent: Type): RouterState {
+  const emptyUrl = new BehaviorSubject([new UrlSegment("", {})]);
+  const emptyParams = new BehaviorSubject({});
+  const emptyQueryParams = new BehaviorSubject({});
+  const fragment = new BehaviorSubject("");
+  // TODO outlet name should not be outlet
+  const activated = new ActivatedRoute(emptyUrl, emptyParams, PRIMARY_OUTLET, rootComponent, <any>null);
+  return new RouterState(new TreeNode<ActivatedRoute>(activated, []), emptyQueryParams, fragment);
+}
+
+export class ActivatedRoute {
+  constructor(public urlSegments: Observable<UrlSegment[]>,
+              public params: Observable<Params>,
+              public outlet: string,
+              public component: Type,
+              public factory: ComponentFactory<any>) {}
+}