Result work

packages/effect-fc/src/SubscriptionRef.ts

@@ -4,16 +4,26 @@ import * as Component from "./Component.js"
 import * as SetStateAction from "./SetStateAction.js"
 
 
+export namespace useSubscriptionRefState {
+    export interface Options<A> {
+        readonly equivalence?: Equivalence.Equivalence<A>
+    }
+}
+
 export const useSubscriptionRefState: {
     <A>(
-        ref: SubscriptionRef.SubscriptionRef<A>
+        ref: SubscriptionRef.SubscriptionRef<A>,
+        options?: useSubscriptionRefState.Options<NoInfer<A>>,
     ): Effect.Effect<readonly [A, React.Dispatch<React.SetStateAction<A>>], never, Scope.Scope>
-} = Effect.fnUntraced(function* <A>(ref: SubscriptionRef.SubscriptionRef<A>) {
+} = Effect.fnUntraced(function* <A>(
+    ref: SubscriptionRef.SubscriptionRef<A>,
+    options?: useSubscriptionRefState.Options<NoInfer<A>>,
+) {
     const [reactStateValue, setReactStateValue] = React.useState(yield* Component.useOnMount(() => ref))
 
     yield* Component.useReactEffect(() => Effect.forkScoped(
         Stream.runForEach(
-            Stream.changesWith(ref.changes, Equivalence.strict()),
+            Stream.changesWith(ref.changes, options?.equivalence ?? Equivalence.strict()),
             v => Effect.sync(() => setReactStateValue(v)),
         )
     ), [ref])
@@ -28,14 +38,23 @@ export const useSubscriptionRefState: {
     return [reactStateValue, setValue]
 })
 
+export namespace useSubscriptionRefFromState {
+    export interface Options<A> {
+        readonly equivalence?: Equivalence.Equivalence<A>
+    }
+}
+
 export const useSubscriptionRefFromState: {
-    <A>(state: readonly [A, React.Dispatch<React.SetStateAction<A>>]): Effect.Effect<SubscriptionRef.SubscriptionRef<A>, never, Scope.Scope>
-} = Effect.fnUntraced(function*([value, setValue]) {
+    <A>(
+        state: readonly [A, React.Dispatch<React.SetStateAction<A>>],
+        options?: useSubscriptionRefFromState.Options<NoInfer<A>>,
+    ): Effect.Effect<SubscriptionRef.SubscriptionRef<A>, never, Scope.Scope>
+} = Effect.fnUntraced(function*([value, setValue], options) {
     const ref = yield* Component.useOnChange(() => Effect.tap(
         SubscriptionRef.make(value),
         ref => Effect.forkScoped(
             Stream.runForEach(
-                Stream.changesWith(ref.changes, Equivalence.strict()),
+                Stream.changesWith(ref.changes, options?.equivalence ?? Equivalence.strict()),
                 v => Effect.sync(() => setValue(v)),
             )
         ),