Update

package.json

@@ -79,6 +79,7 @@
     "ultradom": "2.0.0"
   },
   "optionalDependencies": {
+    "preact": "^8.2.9",
     "remotedev": "^0.2.7"
   }
 }

src/enhancers/preact.ts

@@ -0,0 +1,45 @@
+import { App } from '../'
+import { h, render as _render } from 'preact'
+
+const React = { createElement: h }
+
+export { React, h }
+
+const __HYDUX_RENDER_ROOT__ = '__HYDUX_RENDER_ROOT__'
+export default function withUltradom<State, Actions>(container: Element = document.body, options: {
+  raf?: boolean
+} = { raf: true }): (app: App<State, Actions>) => App<State, Actions> {
+  let rafId
+  return app => props => app({
+    ...props,
+    view: (s, a) => {
+      if (options.raf) {
+        // Lazy render
+        return () => props.view(s, a)
+      }
+      return props.view(s, a)
+    },
+    onRender(view) {
+      props.onRender && props.onRender(view)
+      // fix duplicate node in hmr
+      const render = () => {
+        if (options.raf) {
+          view = view()
+        }
+        container[__HYDUX_RENDER_ROOT__] = _render(
+          view,
+          container,
+          container[__HYDUX_RENDER_ROOT__],
+        )
+      }
+
+      if (!options.raf) {
+        return render()
+      }
+      if (rafId) {
+        window.cancelAnimationFrame(rafId)
+      }
+      rafId = window.requestAnimationFrame(render)
+    }
+  })
+}

src/enhancers/router/history.ts

@@ -61,6 +61,7 @@ export function matchPath<P>(pathname: string, fmt: string): P | null {
 export abstract class BaseHistory {
   public location: Location<any, any>
   public lastLocation: Location<any, any>
+  /* @internal */
   public _routesMeta: RoutesMeta<any, any>
   protected props: HistoryProps
   protected _last: string[] = []
@@ -95,6 +96,7 @@ export abstract class BaseHistory {
   parsePath(path: string): Location<any, any> {
     return parsePath(path, this._routesTpls)
   }
+  /* @internal */
   public _setRoutes(routes: Routes<any, any>, routesMeta: RoutesMeta<any, any>) {
     this._routesMeta = routesMeta
     this._routes = routes

src/helpers.ts

@@ -28,7 +28,7 @@ export type Dt<T extends string, D = null> = {
  * }
  * ```
  */
-export function dt<T extends string, D>(tag: T, data: D) {
+export function dt<T extends string, D = null>(tag: T, data: D = null as any) {
   return { tag, data } as Dt<T, D>
 }
 

tsconfig.json

@@ -48,7 +48,8 @@
 
     /* Experimental Options */
     "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
-    "emitDecoratorMetadata": true         /* Enables experimental support for emitting type metadata for decorators. */
+    "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+    "stripInternal": true
   },
   "include": ["src/**/*"],
   "exclude": [

yarn.lock

@@ -3607,6 +3607,10 @@ pre-commit@^1.2.2:
     spawn-sync "^1.0.15"
     which "1.2.x"
 
+preact@^8.2.9:
+  version "8.2.9"
+  resolved "http://registry.npm.taobao.org/preact/download/preact-8.2.9.tgz#813ba9dd45e5d97c5ea0d6c86d375b3be711cc40"
+
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "http://registry.npm.taobao.org/prelude-ls/download/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"