From 43892bc3f483a800d92b280da2067099ecbec108 Mon Sep 17 00:00:00 2001
From: CEL Dev Team <cel-dev@google.com>
Date: Tue, 2 Sep 2025 07:59:56 -0700
Subject: [PATCH] Mark `arena` as nullable

`CustomListValue::CustomListValue()` set's it into nullptr and it triggers
`-fsanitize=nullability`.

There are not deference of this pointer, it used only in comparison. Marking it
`nonnull` does not help to protect dereferences.

Also mark `arena` as const, to make sure it's not used for allocation, those
methods are non-const.

PiperOrigin-RevId: 802145149
---
 common/values/custom_list_value.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/values/custom_list_value.h b/common/values/custom_list_value.h
index f16df2da6..e66eece43 100644
--- a/common/values/custom_list_value.h
+++ b/common/values/custom_list_value.h
@@ -241,7 +241,7 @@ class CustomListValueInterface {
 
   struct Content {
     const CustomListValueInterface* absl_nonnull interface;
-    google::protobuf::Arena* absl_nonnull arena;
+    const google::protobuf::Arena* absl_nullable arena;
   };
 };