From 16dd657033d8afac2ffea567b3c8bb27c9b249b6 Mon Sep 17 00:00:00 2001
From: Maxwell Brown <maxwellbrown1990@gmail.com>
Date: Wed, 25 Dec 2024 12:16:54 -0500
Subject: [PATCH] extend IterableIterator instead of Generator (#4190)

---
 .changeset/polite-crews-march.md | 5 +++++
 packages/effect/src/Utils.ts     | 8 ++++----
 2 files changed, 9 insertions(+), 4 deletions(-)
 create mode 100644 .changeset/polite-crews-march.md

diff --git a/.changeset/polite-crews-march.md b/.changeset/polite-crews-march.md
new file mode 100644
index 00000000000..a0af43b7d12
--- /dev/null
+++ b/.changeset/polite-crews-march.md
@@ -0,0 +1,5 @@
+---
+"effect": patch
+---
+
+extend `IterableIterator` instead of `Generator` in `SingleShotGen`
diff --git a/packages/effect/src/Utils.ts b/packages/effect/src/Utils.ts
index 6d2d3464f58..53b297dcc70 100644
--- a/packages/effect/src/Utils.ts
+++ b/packages/effect/src/Utils.ts
@@ -40,7 +40,7 @@ export type GenKindTypeId = typeof GenKindTypeId
 export interface GenKind<F extends TypeLambda, R, O, E, A> extends Variance<F, R, O, E> {
   readonly value: Kind<F, R, O, E, A>
 
-  [Symbol.iterator](): Generator<GenKind<F, R, O, E, A>, A>
+  [Symbol.iterator](): IterableIterator<GenKind<F, R, O, E, A>, A>
 }
 
 /**
@@ -97,7 +97,7 @@ export class GenKindImpl<F extends TypeLambda, R, O, E, A> implements GenKind<F,
   /**
    * @since 2.0.0
    */
-  [Symbol.iterator](): Generator<GenKind<F, R, O, E, A>, A> {
+  [Symbol.iterator](): IterableIterator<GenKind<F, R, O, E, A>, A> {
     return new SingleShotGen<GenKind<F, R, O, E, A>, A>(this as any)
   }
 }
@@ -106,7 +106,7 @@ export class GenKindImpl<F extends TypeLambda, R, O, E, A> implements GenKind<F,
  * @category constructors
  * @since 2.0.0
  */
-export class SingleShotGen<T, A> implements Generator<T, A> {
+export class SingleShotGen<T, A> implements IterableIterator<T, A> {
   private called = false
 
   constructor(readonly self: T) {}
@@ -147,7 +147,7 @@ export class SingleShotGen<T, A> implements Generator<T, A> {
   /**
    * @since 2.0.0
    */
-  [Symbol.iterator](): Generator<T, A> {
+  [Symbol.iterator](): IterableIterator<T, A> {
     return new SingleShotGen<T, A>(this.self)
   }
 }