From a1703aae37afdaa8512be5b0b8edfcef8af1a545 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julien=20Valverd=C3=A9?= <julien.valverde@mailo.com>
Date: Tue, 21 Jan 2025 03:46:41 +0100
Subject: [PATCH] useMemoScoped

---
 packages/reffuse/src/Reffuse.ts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/packages/reffuse/src/Reffuse.ts b/packages/reffuse/src/Reffuse.ts
index 9e3b4cc..597c8b5 100644
--- a/packages/reffuse/src/Reffuse.ts
+++ b/packages/reffuse/src/Reffuse.ts
@@ -133,6 +133,29 @@ export class Reffuse<R> {
         ])
     }
 
+    useMemoScoped<A, E>(
+        effect: Effect.Effect<A, E, R | Scope.Scope>,
+        deps?: React.DependencyList,
+        options?: RenderOptions & ScopeOptions,
+    ): A {
+        const runSync = this.useRunSync()
+
+        const initialValue = React.useMemo(() => runSync(Effect.scoped(effect)), [])
+        const [value, setValue] = React.useState(initialValue)
+
+        React.useEffect(() => {
+            const scope = runSync(Scope.make(options?.finalizerExecutionStrategy))
+            setValue(runSync(Effect.provideService(effect, Scope.Scope, scope)))
+
+            return () => { runSync(Scope.close(scope, Exit.void)) }
+        }, [
+            ...options?.doNotReExecuteOnRuntimeOrContextChange ? [] : [runSync],
+            ...(deps ?? []),
+        ])
+
+        return value
+    }
+
     /**
      * Reffuse equivalent to `React.useEffect`.
      *