packages/reffuse/src/Reffuse.ts

@@ -88,6 +88,26 @@ export class Reffuse<R> {
         ])
     }
 
+    useLayoutEffect<A, E>(
+        effect: Effect.Effect<A, E, R | Scope.Scope>,
+        deps?: React.DependencyList,
+        options?: RenderOptions & ScopeOptions,
+    ): void {
+        const runSync = this.useRunSync()
+
+        return React.useLayoutEffect(() => {
+            const scope = Scope.make(options?.finalizerExecutionStrategy).pipe(
+                Effect.tap(scope => Effect.provideService(effect, Scope.Scope, scope)),
+                runSync,
+            )
+
+            return () => runSync(Scope.close(scope, Exit.void))
+        }, [
+            ...options?.doNotReExecuteOnRuntimeOrContextChange ? [] : [runSync],
+            ...(deps ?? []),
+        ])
+    }
+
     useSuspense<A, E>(
         effect: Effect.Effect<A, E, R>,
         options?: { readonly signal?: AbortSignal },