From 042843fe42dd609ba2459ede835cda07217af4af Mon Sep 17 00:00:00 2001
From: Ari Vuollet <ari.vuollet@goat.moe>
Date: Tue, 16 Dec 2025 00:53:03 +0200
Subject: [PATCH] Fix clang bindings code generation for non-const ref
 parameters

---
 Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
index ca1f337cc..cb7f7c778 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
@@ -1300,7 +1300,10 @@ namespace Flax.Build.Bindings
                 else if (parameterInfo.Type.IsRef && !parameterInfo.Type.IsConst)
                 {
                     // Non-const lvalue reference parameters needs to be passed via temporary value
-                    contents.Append(indent).AppendFormat("auto {0}Temp = {1};", parameterInfo.Name, param).AppendLine();
+                    if (parameterInfo.IsOut || parameterInfo.IsRef)
+                        contents.Append(indent).AppendFormat("{2}& {0}Temp = {1};", parameterInfo.Name, param, parameterInfo.Type.ToString(false)).AppendLine();
+                    else
+                        contents.Append(indent).AppendFormat("{2} {0}Temp = {1};", parameterInfo.Name, param, parameterInfo.Type.ToString(false)).AppendLine();
                     callParams += parameterInfo.Name;
                     callParams += "Temp";
                 }