From bdeb89538cf129b71051444eefbf0a223994ceec Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Wed, 3 Jun 2026 11:05:17 +0200
Subject: [PATCH] Optimize auto generated Variant Types in bindings to reduce
 dynamic memory allocs in game builds

---
 .../Flax.Build/Bindings/BindingsGenerator.Cpp.cs     | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
index 6dd2aba6f..e67f66cde 100644
--- a/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
+++ b/Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
@@ -203,11 +203,11 @@ namespace Flax.Build.Bindings
 
                 var fullname = apiType.FullNameManaged;
                 if (apiType.IsEnum)
-                    return $"Variant::Enum(VariantType(VariantType::Enum, StringAnsiView(\"{fullname}\", {fullname.Length})), {value})";
+                    return $"Variant::Enum(VariantType(VariantType::Enum, StringAnsiView(\"{fullname}\", {fullname.Length}), !USE_EDITOR), {value})";
                 if (apiType.IsStruct && !CppInBuildVariantStructures.Contains(apiType.Name))
                 {
                     if (apiType.IsInBuild)
-                        return $"Variant::Structure(VariantType(VariantType::Structure, StringAnsiView(\"{fullname}\", {fullname.Length})), {(typeInfo.IsPtr ? "*" + value : value)})";
+                        return $"Variant::Structure(VariantType(VariantType::Structure, StringAnsiView(\"{fullname}\", {fullname.Length}), !USE_EDITOR), {(typeInfo.IsPtr ? "*" + value : value)})";
                     return $"Variant::Structure(VariantType(VariantType::Structure, {apiType.FullNameNative}::TypeInitializer.GetType()), {(typeInfo.IsPtr ? "*" + value : value)})";
                 }
             }
@@ -269,7 +269,7 @@ namespace Flax.Build.Bindings
             {
                 var elementType = FindApiTypeInfo(buildData, typeInfo.GenericArgs[0], caller);
                 var elementName = $"{(elementType != null ? elementType.FullNameManaged : typeInfo.GenericArgs[0].Type)}[]";
-                return $"VariantType(VariantType::Array, StringAnsiView(\"{elementName}\", {elementName.Length}))";
+                return $"VariantType(VariantType::Array, StringAnsiView(\"{elementName}\", {elementName.Length}), !USE_EDITOR)";
             }
             if (typeInfo.Type == "Dictionary" && typeInfo.GenericArgs != null)
                 return "VariantType(VariantType::Dictionary)";
@@ -280,11 +280,11 @@ namespace Flax.Build.Bindings
             {
                 var fullname = apiType.FullNameManaged;
                 if (apiType.IsEnum)
-                    return $"VariantType(VariantType::Enum, StringAnsiView(\"{fullname}\", {fullname.Length}))";
+                    return $"VariantType(VariantType::Enum, StringAnsiView(\"{fullname}\", {fullname.Length}), !USE_EDITOR)";
                 if (apiType.IsStruct)
                 {
                     if (apiType.IsInBuild)
-                        return $"VariantType(VariantType::Structure, StringAnsiView(\"{fullname}\", {fullname.Length}))";
+                        return $"VariantType(VariantType::Structure, StringAnsiView(\"{fullname}\", {fullname.Length}), !USE_EDITOR)";
                     return $"VariantType(VariantType::Structure, {apiType.FullNameNative}::TypeInitializer.GetType())";
                 }
                 if (apiType.IsClass)
@@ -3103,7 +3103,7 @@ namespace Flax.Build.Bindings
                         header.Append("    Variant result;").AppendLine();
                         var apiType = FindApiTypeInfo(buildData, valueType, moduleInfo);
                         var elementName = $"{(apiType != null ? apiType.FullNameManaged : valueType.Type)}[]";
-                        header.Append($"    result.SetType(VariantType(VariantType::Array, StringAnsiView(\"{elementName}\", {elementName.Length})));").AppendLine();
+                        header.Append($"    result.SetType(VariantType(VariantType::Array, StringAnsiView(\"{elementName}\", {elementName.Length}), !USE_EDITOR));").AppendLine();
                         header.Append("    auto* array = reinterpret_cast<Array<Variant, HeapAllocation>*>(result.AsData);").AppendLine();
                         header.Append("    array->Resize(length);").AppendLine();
                         header.Append("    for (int32 i = 0; i < length; i++)").AppendLine();