From 5785c5106079624614b037012771b92c54f28764 Mon Sep 17 00:00:00 2001
From: vadzz <me@vadzz.dev>
Date: Sat, 13 Apr 2024 00:22:56 +0300
Subject: [PATCH] fix: add IsExternal check to GetObjectClass

---
 shared/V8Helpers.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/shared/V8Helpers.cpp b/shared/V8Helpers.cpp
index 5f0d7d11..4cfca3a4 100644
--- a/shared/V8Helpers.cpp
+++ b/shared/V8Helpers.cpp
@@ -384,8 +384,12 @@ V8Class::ObjectClass V8Helpers::GetObjectClass(v8::Local<v8::Object> obj)
 {
     if(obj->InternalFieldCount() <= static_cast<int>(V8Class::InternalFields::OBJECT_CLASS))
         return V8Class::ObjectClass::NONE;
+
+    auto val = obj->GetInternalField(static_cast<int>(V8Class::InternalFields::OBJECT_CLASS));
+    if(!val->IsExternal())
+        return V8Class::ObjectClass::NONE;
 
-    void* cls = obj->GetInternalField(static_cast<int>(V8Class::InternalFields::OBJECT_CLASS)).As<v8::External>()->Value();
+    void* cls = val.As<v8::External>()->Value();
     return *reinterpret_cast<V8Class::ObjectClass*>(&cls);
 }