Merge branch 'master' into gh-103

src/runtime/index.ts

@@ -59,9 +59,6 @@ function render(Component: ComponentConstructor, data: any, scroll: ScrollPositi
 			detach(start);
 			detach(end);
 		}
-
-		// preload additional routes
-		routes.reduce((promise: Promise<any>, route) => promise.then(route.load), Promise.resolve());
 	}
 
 	component = new Component({
@@ -268,3 +265,20 @@ export function goto(href: string, opts = { replaceState: false }) {
 		window.location.href = href;
 	}
 }
+
+export function preloadRoutes(pathnames: string[]) {
+	if (!routes) throw new Error(`You must call init() first`);
+
+	return routes
+		.filter(route => {
+			if (!pathnames) return true;
+			return pathnames.some(pathname => {
+				return route.error
+					? route.error === pathname
+					: route.pattern.test(pathname)
+			});
+		})
+		.reduce((promise: Promise<any>, route) => {
+			return promise.then(route.load);
+		}, Promise.resolve());
+}

src/runtime/interfaces.ts

@@ -13,8 +13,9 @@ export interface Component {
 
 export type Route = {
 	pattern: RegExp;
-	params: (match: RegExpExecArray) => Record<string, string>;
 	load: () => Promise<{ default: ComponentConstructor }>;
+	error?: string;
+	params?: (match: RegExpExecArray) => Record<string, string>;
 	ignore?: boolean;
 };