packages/effect-fc/src/Component.ts

@@ -99,9 +99,18 @@ export const useSuspenseFC: {
         const scope = Runtime.runSync(runtimeRef.current)(Hook.useScope([], self.options))
 
         const FC = React.useMemo(() => {
-            const f = (props: P) => Runtime.runSync(runtimeRef.current)(
+            const inner = (props: { readonly promise: Promise<React.ReactNode> }) => React.use(props.promise)
+
+            const f = React.memo((props: P) => {
+                const promise = Runtime.runPromise(runtimeRef.current)(
                     Effect.provideService(self(props), Scope.Scope, scope)
                 )
+                return React.createElement(
+                    React.Suspense,
+                    { fallback: "Loading..." },
+                    React.createElement(inner, { promise }),
+                )
+            })
             f.displayName = self.displayName ?? "Anonymous"
             return f
         }, [scope])

packages/example/src/routeTree.gen.ts

@@ -10,6 +10,7 @@
 
 import { Route as rootRouteImport } from './routes/__root'
 import { Route as BlankRouteImport } from './routes/blank'
+import { Route as AsyncRenderingRouteImport } from './routes/async-rendering'
 import { Route as IndexRouteImport } from './routes/index'
 
 const BlankRoute = BlankRouteImport.update({
@@ -17,6 +18,11 @@ const BlankRoute = BlankRouteImport.update({
   path: '/blank',
   getParentRoute: () => rootRouteImport,
 } as any)
+const AsyncRenderingRoute = AsyncRenderingRouteImport.update({
+  id: '/async-rendering',
+  path: '/async-rendering',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -25,27 +31,31 @@ const IndexRoute = IndexRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof IndexRoute
+  '/async-rendering': typeof AsyncRenderingRoute
   '/blank': typeof BlankRoute
 }
 export interface FileRoutesByTo {
   '/': typeof IndexRoute
+  '/async-rendering': typeof AsyncRenderingRoute
   '/blank': typeof BlankRoute
 }
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/async-rendering': typeof AsyncRenderingRoute
   '/blank': typeof BlankRoute
 }
 export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
-  fullPaths: '/' | '/blank'
+  fullPaths: '/' | '/async-rendering' | '/blank'
   fileRoutesByTo: FileRoutesByTo
-  to: '/' | '/blank'
+  to: '/' | '/async-rendering' | '/blank'
-  id: '__root__' | '/' | '/blank'
+  id: '__root__' | '/' | '/async-rendering' | '/blank'
   fileRoutesById: FileRoutesById
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  AsyncRenderingRoute: typeof AsyncRenderingRoute
   BlankRoute: typeof BlankRoute
 }
 
@@ -58,6 +68,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof BlankRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/async-rendering': {
+      id: '/async-rendering'
+      path: '/async-rendering'
+      fullPath: '/async-rendering'
+      preLoaderRoute: typeof AsyncRenderingRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -70,6 +87,7 @@ declare module '@tanstack/react-router' {
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  AsyncRenderingRoute: AsyncRenderingRoute,
   BlankRoute: BlankRoute,
 }
 export const routeTree = rootRouteImport

packages/example/src/routes/async-rendering.tsx

@@ -0,0 +1,28 @@
+import { runtime } from "@/runtime"
+import { Text } from "@radix-ui/themes"
+import { createFileRoute } from "@tanstack/react-router"
+import { Console, Effect } from "effect"
+import { Component } from "effect-fc"
+
+
+const RouteComponent = Component.make(function* AsyncRendering() {
+    console.log("render")
+    const VAsyncComponent = yield* Component.useSuspenseFC(AsyncComponent)
+    return <>
+        <Text>Route component</Text>
+        <VAsyncComponent />
+    </>
+}).pipe(
+    Component.withRuntime(runtime.context)
+)
+
+const AsyncComponent = Component.make(function* AsyncComponent() {
+    yield* Console.log("rendering")
+    yield* Effect.sleep("500 millis")
+    return <Text>Rendered!</Text>
+})
+
+
+export const Route = createFileRoute("/async-rendering")({
+    component: RouteComponent
+})