Alpha 35: Acessing RouteParam when no route parameter are provided produce exception #3755
Description
I have routes defined as
{path: '/items/edit/', component: EditProductView, as: 'itemsEditNew'},
{path: '/items/edit/:id', component: EditProductView, as: 'itemsEdit'},
In EditProductView, I inject RouteParams in the constructor
import {RouteParams} from 'angular2/router';
// ...
constructor(routeParams:RouteParams) {
var itemIdParam;
if (routeParams != null) {
itemIdParam = routeParams.get('id');
}
this.itemId = parseInt(itemIdParam);
if (isNaN(this.itemId)) {
this.itemId = null;
}
}
This worked fine in alpha33.
In alpha35, this works fine as long as a route parameter is provided. If none are provided (for exmple, following a router-link to /itemsEditNew), then an exception is thrown:
EXCEPTION: Error during instantiation of EditProductView!.
angular2.js:13030 ORIGINAL EXCEPTION: TypeError: Cannot read property 'hasOwnProperty' of null
angular2.js:13030 ORIGINAL STACKTRACE:
angular2.js:13030 TypeError: Cannot read property 'hasOwnProperty' of null
at Function.execute.StringMapWrapper.get (angular2.js:6299)
at RouteParams.execute.RouteParams.get (router.js:4906)
at new EditProductView (editView.ts:79)
at execute.ReflectionCapabilities.factory (angular2.js:12767)
at Injector.execute.Injector._instantiate (angular2.js:5952)
at Injector.execute.Injector._new (angular2.js:5883)
at InjectorInlineStrategy.execute.InjectorInlineStrategy.instantiateBinding (angular2.js:5672)
at ElementInjectorInlineStrategy.execute.ElementInjectorInlineStrategy.hydrate (angular2.js:17257)
at ElementInjector.execute.ElementInjector.hydrate (angular2.js:16910)
at execute.AppViewManagerUtils._hydrateView (angular2.js:15038)