From f01207f9aae6f3eeaa7ac93612b791759eb6c373 Mon Sep 17 00:00:00 2001
From: Thodoris Sotiropoulos <theosotr@aueb.gr>
Date: Sat, 26 Sep 2026 08:11:45 +0000
Subject: [PATCH] Validate RE2 instance before unwrapping

---
 lib/new.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/new.cc b/lib/new.cc
index cc4a519..1134d3b 100644
--- a/lib/new.cc
+++ b/lib/new.cc
@@ -165,7 +165,7 @@ NAN_METHOD(WrappedRE2::New)
 	{
 		WrappedRE2 *re2 = nullptr;
 		auto object = info[0]->ToObject(context).ToLocalChecked();
-		if (!object.IsEmpty() && object->InternalFieldCount() > 0)
+		if (!object.IsEmpty() && WrappedRE2::HasInstance(object))
 		{
 			re2 = Nan::ObjectWrap::Unwrap<WrappedRE2>(object);
 		}