From 27482161902ac35adf0db30ec4709b169663edf4 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Mon, 30 Mar 2026 19:55:44 +0200
Subject: [PATCH] Fix using `Dictionary` as virtual method parameter in
 scripting bindings

---
 .../Flax.Build/Bindings/BindingsGenerator.Cpp.cs | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
index 50d3aa85c..8002c66a5 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
@@ -997,6 +997,22 @@ namespace Flax.Build.Bindings
             if (typeInfo.Type == "BytesContainer" && typeInfo.GenericArgs == null)
                 return $"MUtils::ToArray({value})";
 
+            // Dictionary
+            if (typeInfo.Type == "Dictionary" && typeInfo.GenericArgs != null)
+            {
+                CppIncludeFiles.Add("Engine/Scripting/Internal/ManagedDictionary.h");
+                var keyClass = GenerateCppGetNativeType(buildData, typeInfo.GenericArgs[0], caller);
+                var valueClass = GenerateCppGetNativeType(buildData, typeInfo.GenericArgs[1], caller);
+                return $"ManagedDictionary::ToManaged({value}, {keyClass}, {valueClass})";
+            }
+
+            // HashSet
+            if (typeInfo.Type == "HashSet" && typeInfo.GenericArgs != null)
+            {
+                // TODO: automatic converting managed-native for HashSet
+                throw new NotImplementedException("TODO: converting managed HashSet to native");
+            }
+
             // Construct native typename for MUtils template argument
             var nativeType = new StringBuilder(64);
             nativeType.Append(typeInfo.Type);