From a7040144e532dbf338cb11865a8f5396818ec6c7 Mon Sep 17 00:00:00 2001
From: Terry Fu <tfu@seek.com.au>
Date: Thu, 24 Oct 2024 16:20:18 +1100
Subject: [PATCH] don't reiterate through all type parts for each part

---
 packages/type-utils/src/predicates.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/type-utils/src/predicates.ts b/packages/type-utils/src/predicates.ts
index 5c0680c8f7d5..3a4f451aaa1c 100644
--- a/packages/type-utils/src/predicates.ts
+++ b/packages/type-utils/src/predicates.ts
@@ -131,7 +131,7 @@ export function discriminateAnyType(
     return AnyType.AnyArray;
   }
   for (const part of tsutils.typeParts(type)) {
-    if (tsutils.isThenableType(checker, tsNode, type)) {
+    if (tsutils.isThenableType(checker, tsNode, part)) {
       const awaitedType = checker.getAwaitedType(part);
       if (awaitedType) {
         const awaitedAnyType = discriminateAnyType(