Fix using Delegate<> in API event

Source/Engine/Core/Delegate.h

@@ -4,11 +4,6 @@
 
 #include "Engine/Core/Memory/Allocation.h"
 
-template<typename>
-class Function;
-template<typename... Params>
-class Delegate;
-
 /// <summary>
 /// The function object.
 /// </summary>

Source/Engine/Core/Types/BaseTypes.h

@@ -97,6 +97,10 @@ template<typename T, typename U>
 class Pair;
 template<typename KeyType, typename ValueType>
 class Dictionary;
+template<typename>
+class Function;
+template<typename... Params>
+class Delegate;
 
 // Declares full set of operators for the enum type (using binary operation on integer values)
 #define DECLARE_ENUM_OPERATORS(T) \

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

@@ -136,6 +136,8 @@ namespace Flax.Build.Bindings
         private static string GenerateCSharpNativeToManaged(BuildData buildData, TypeInfo typeInfo, ApiTypeInfo caller)
         {
             string result;
+            if (typeInfo?.Type == null)
+                throw new ArgumentNullException();
 
             // Use dynamic array as wrapper container for fixed-size native arrays
             if (typeInfo.IsArray)

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

@@ -1136,6 +1136,7 @@ namespace Flax.Build.Bindings
 
                 // C# event invoking wrapper (calls C# event from C++ delegate)
                 CppIncludeFiles.Add("Engine/Scripting/ManagedCLR/MEvent.h");
+                CppIncludeFiles.Add("Engine/Scripting/ManagedCLR/MClass.h");
                 contents.Append("    ");
                 if (eventInfo.IsStatic)
                     contents.Append("static ");
@@ -1150,7 +1151,7 @@ namespace Flax.Build.Bindings
                 contents.Append("    {").AppendLine();
                 contents.Append("        static MMethod* mmethod = nullptr;").AppendLine();
                 contents.Append("        if (!mmethod)").AppendLine();
-                contents.AppendFormat("            mmethod = {1}::GetStaticClass()->GetMethod(\"Internal_{0}_Invoke\", {2});", eventInfo.Name, classTypeNameNative, paramsCount).AppendLine();
+                contents.AppendFormat("            mmethod = {1}::TypeInitializer.GetType().ManagedClass->GetMethod(\"Internal_{0}_Invoke\", {2});", eventInfo.Name, classTypeNameNative, paramsCount).AppendLine();
                 contents.Append("        CHECK(mmethod);").AppendLine();
                 contents.Append("        MonoObject* exception = nullptr;").AppendLine();
                 if (paramsCount == 0)

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

@@ -213,7 +213,9 @@ namespace Flax.Build.Bindings
                 type.GenericArgs = new List<TypeInfo>();
                 do
                 {
-                    type.GenericArgs.Add(ParseType(ref context));
+                    var argType = ParseType(ref context);
+                    if (argType.Type != null)
+                        type.GenericArgs.Add(argType);
                     token = context.Tokenizer.NextToken();
                 } while (token.Type != TokenType.RightAngleBracket);