From c6eeb7b8bcb7169bc30d85b2bbbeb53cc57b9517 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Julien=20Valverd=C3=A9?= <julien.valverde@mailo.com>
Date: Thu, 23 Jul 2026 03:08:42 +0200
Subject: [PATCH] Fix

---
 packages/effect-fc-next/src/ScopeRegistry.ts | 55 +++++++++-----------
 1 file changed, 26 insertions(+), 29 deletions(-)

diff --git a/packages/effect-fc-next/src/ScopeRegistry.ts b/packages/effect-fc-next/src/ScopeRegistry.ts
index 2cb0ffd..643f1d8 100644
--- a/packages/effect-fc-next/src/ScopeRegistry.ts
+++ b/packages/effect-fc-next/src/ScopeRegistry.ts
@@ -1,4 +1,4 @@
-import { type Cause, Context, DateTime, type Duration, Effect, Equal, Exit, HashMap, Layer, Option, Order, Scope, Semaphore, Stream, SubscriptionRef } from "effect"
+import { type Cause, Context, DateTime, type Duration, Effect, Equal, Exit, flow, HashMap, Layer, Option, Order, Scope, Semaphore, Stream, SubscriptionRef } from "effect"
 
 
 export interface ScopeRegistryService {
@@ -39,14 +39,13 @@ export class ScopeRegistryServiceImpl implements ScopeRegistryService {
         readonly runSemaphore: Semaphore.Semaphore,
     ) {}
 
-
     register(
         key: ScopeRegistryService.Key,
         options: ScopeRegistryService.RegisterOptions,
     ): Effect.Effect<ScopeRegistryService.Entry> {
         return Effect.gen({ self: this }, function*() {
             const now = yield* DateTime.now
-            const entry = Equal.byReference<ScopeRegistryService.Entry>({
+            const entry = Equal.byReference({
                 scope: yield* Scope.make(options.finalizerExecutionStrategy),
                 expiresAt: Option.some(DateTime.addDuration(now, options.finalizerExecutionDebounce)),
                 finalizerExecutionDebounce: options.finalizerExecutionDebounce,
@@ -58,21 +57,34 @@ export class ScopeRegistryServiceImpl implements ScopeRegistryService {
     }
 
     commit(key: ScopeRegistryService.Key): Effect.Effect<ScopeRegistryService.Entry, Cause.NoSuchElementError> {
-        return this.updateEntry(key, entry => Equal.byReference({
-            ...entry,
-            expiresAt: Option.none(),
-        }))
+        return SubscriptionRef.get(this.ref).pipe(
+            Effect.map(HashMap.get(key)),
+            Effect.flatMap(Effect.fromOption),
+            Effect.map(entry => Equal.byReference<ScopeRegistryService.Entry>({
+                ...entry,
+                expiresAt: Option.none(),
+            })),
+            Effect.tap(entry => SubscriptionRef.update(this.ref, HashMap.set(key, entry))),
+        )
     }
 
     release(key: ScopeRegistryService.Key): Effect.Effect<ScopeRegistryService.Entry, Cause.NoSuchElementError> {
-        return Effect.flatMap(DateTime.now, now => this.updateEntry(key, entry => Equal.byReference({
-            ...entry,
-            expiresAt: Option.some(DateTime.addDuration(now, entry.finalizerExecutionDebounce)),
-        })))
+        return SubscriptionRef.get(this.ref).pipe(
+            Effect.map(HashMap.get(key)),
+            Effect.flatMap(option => Effect.all([
+                DateTime.now,
+                Effect.fromOption(option),
+            ])),
+            Effect.map(([now, entry]) => Equal.byReference<ScopeRegistryService.Entry>({
+                ...entry,
+                expiresAt: Option.some(DateTime.addDuration(now, entry.finalizerExecutionDebounce)),
+            })),
+            Effect.tap(entry => SubscriptionRef.update(this.ref, HashMap.set(key, entry))),
+        )
     }
 
     get run(): Effect.Effect<void> {
-        return this.runSemaphore.withPermits(1)(SubscriptionRef.changes(this.ref).pipe(
+        return SubscriptionRef.changes(this.ref).pipe(
             Stream.switchMap(entries => Option.match(this.getNextExpiration(entries), {
                 onNone: () => Stream.never,
                 onSome: expiresAt => Stream.fromEffect(DateTime.now.pipe(
@@ -83,7 +95,8 @@ export class ScopeRegistryServiceImpl implements ScopeRegistryService {
                 )),
             })),
             Stream.runDrain,
-        ))
+            this.runSemaphore.withPermit,
+        )
     }
 
     get dispose(): Effect.Effect<void> {
@@ -99,22 +112,6 @@ export class ScopeRegistryServiceImpl implements ScopeRegistryService {
         )
     }
 
-
-    updateEntry(
-        key: ScopeRegistryService.Key,
-        f: (entry: ScopeRegistryService.Entry) => ScopeRegistryService.Entry,
-    ): Effect.Effect<ScopeRegistryService.Entry, Cause.NoSuchElementError> {
-        return SubscriptionRef.modify(this.ref, entries => {
-            const current = HashMap.get(entries, key)
-
-            if (current._tag === "None")
-                return [Option.none(), entries]
-
-            const entry = f(current.value)
-            return [Option.some(entry), HashMap.set(entries, key, entry)]
-        }).pipe(Effect.flatMap(Effect.fromOption))
-    }
-
     get closeExpired(): Effect.Effect<void> {
         return Effect.flatMap(DateTime.now, now => SubscriptionRef.modify(
             this.ref,