From 46eaefec334ec512f9afb0fc09a7dc0f7e95cc7a Mon Sep 17 00:00:00 2001
From: tre0521 <ssbigtree@gmail.com>
Date: Wed, 23 Jul 2025 10:20:00 +0800
Subject: [PATCH] =?UTF-8?q?=E7=B1=BB=E5=9E=8B=E5=AE=89=E5=85=A8=E4=BF=AE?=
 =?UTF-8?q?=E5=A4=8D?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.ts b/src/main.ts
index 97cdb1593..9bc8acaef 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -2776,7 +2776,7 @@ function generateFromPartial(ctx: Context, fullName: string, messageDesc: Descri
         const fallback = noDefaultValue ? "undefined" : "[]";
 
         chunks.push(code`
-          ${messageProperty} = ${objectProperty}?.map((e) => ${readSnippet("e")}) || ${fallback};
+          ${messageProperty} = Array.isArray(${objectProperty})? ${objectProperty}.map((e) => ${readSnippet("e")}): ${fallback};
         `);
       }
     } else if (isWithinOneOfThatShouldBeUnion(options, field)) {