From a5496d7a6d12a4b11d46bc3ce42c108d8c339c19 Mon Sep 17 00:00:00 2001
From: daishi <daishi@axlight.com>
Date: Wed, 16 Oct 2024 10:06:22 +0900
Subject: [PATCH] add a fallback

---
 src/vanilla/shallow.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/vanilla/shallow.ts b/src/vanilla/shallow.ts
index 84b1c42d2f..3f35ec50b6 100644
--- a/src/vanilla/shallow.ts
+++ b/src/vanilla/shallow.ts
@@ -40,10 +40,14 @@ export function shallow<T>(objA: T, objB: T): boolean {
       nextA.value.length === 2 &&
       nextB.value.length === 2
     ) {
-      return compareMapLike(
-        objA as Iterable<[unknown, unknown]>,
-        objB as Iterable<[unknown, unknown]>,
-      )
+      try {
+        return compareMapLike(
+          objA as Iterable<[unknown, unknown]>,
+          objB as Iterable<[unknown, unknown]>,
+        )
+      } catch {
+        // fallback
+      }
     }
     while (!nextA.done && !nextB.done) {
       if (!Object.is(nextA.value, nextB.value)) {