Fix build issues

Source/Tools/Flax.Build/Bindings/ApiTypeInfo.cs

@@ -22,6 +22,7 @@ namespace Flax.Build.Bindings
         public bool IsInBuild;
         public bool IsDeprecated;
         internal bool IsInited;
+        internal TypedefInfo Instigator;
 
         public virtual bool IsClass => false;
         public virtual bool IsStruct => false;

Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs

@@ -75,6 +75,11 @@ namespace Flax.Build.Bindings
             "Rectangle",
         };
 
+        private static bool GenerateCppIsTemplateInstantiationType(ApiTypeInfo typeInfo)
+        {
+            return typeInfo.Instigator != null && typeInfo.Instigator.TypeInfo is ClassStructInfo classStructInfo && classStructInfo.IsTemplate;
+        }
+
         private static string GenerateCppWrapperNativeToVariantMethodName(TypeInfo typeInfo)
         {
             var sb = new StringBuilder();
@@ -1786,6 +1791,8 @@ namespace Flax.Build.Bindings
             var interfacesTable = GenerateCppInterfaceInheritanceTable(buildData, contents, moduleInfo, classInfo, classTypeNameNative);
 
             // Type initializer
+            if (GenerateCppIsTemplateInstantiationType(classInfo))
+                contents.Append("template<> ");
             contents.Append($"ScriptingTypeInitializer {classTypeNameNative}::TypeInitializer((BinaryModule*)GetBinaryModule{moduleInfo.Name}(), ");
             contents.Append($"StringAnsiView(\"{classTypeNameManaged}\", {classTypeNameManaged.Length}), ");
             contents.Append($"sizeof({classTypeNameNative}), ");
@@ -2010,6 +2017,8 @@ namespace Flax.Build.Bindings
             contents.Append('}').Append(';').AppendLine();
             contents.AppendLine();
 
+            if (GenerateCppIsTemplateInstantiationType(structureInfo))
+                contents.Append("template<> ");
             contents.Append($"ScriptingTypeInitializer {structureTypeNameNative}::TypeInitializer((BinaryModule*)GetBinaryModule{moduleInfo.Name}(), ");
             contents.Append($"StringAnsiView(\"{structureTypeNameManaged}\", {structureTypeNameManaged.Length}), ");
             contents.Append($"sizeof({structureTypeNameNative}), ");

Source/Tools/Flax.Build/Bindings/TypedefInfo.cs

@@ -12,6 +12,7 @@ namespace Flax.Build.Bindings
     {
         public bool IsAlias;
         public TypeInfo Type;
+        public ApiTypeInfo TypeInfo; // Cached info of Type
         public ApiTypeInfo Typedef;
 
         // Guards to prevent looped initialization for typedefs that are recursive
@@ -48,6 +49,7 @@ namespace Flax.Build.Bindings
             if (apiTypeInfo == null)
                 throw new Exception(string.Format("Unknown type '{0}' for typedef '{1}'.", Type, Name));
             apiTypeInfo.EnsureInited(buildData);
+            TypeInfo = apiTypeInfo;
 
             // Alias type without introducing any new type
             if (IsAlias || apiTypeInfo is LangType)
@@ -60,6 +62,7 @@ namespace Flax.Build.Bindings
             {
                 // Duplicate type
                 var typedef = (ApiTypeInfo)apiTypeInfo.Clone();
+                typedef.Instigator = this;
                 typedef.NativeName = NativeName ?? Name;
                 typedef.Name = Name;
                 typedef.Namespace = Namespace;