Fixed vtable setup call generation when there are no valid methods in the vtable.

src/Generator/Generators/CSharp/CSharpTextTemplate.cs

@@ -1116,13 +1116,17 @@ namespace CppSharp.Generators.CSharp
 
         #region Virtual Tables
 
-        public void GenerateVTable(Class @class)
+        public List<VTableComponent> GetVTableMethodEntries(Class @class)
         {
             var entries = VTables.GatherVTableMethodEntries(@class);
-            entries = entries.Where(e => !e.Method.Ignore ||
+            return entries.Where(e => !e.Method.Ignore ||
                 @class.Properties.Any(p => !p.Ignore &&
                     (p.GetMethod == e.Method || p.SetMethod == e.Method))).ToList();
+        }
 
+        public void GenerateVTable(Class @class)
+        {
+            var entries = GetVTableMethodEntries(@class);
             if (entries.Count == 0)
                 return;
 
@@ -1241,6 +1245,13 @@ namespace CppSharp.Generators.CSharp
             NewLine();
         }
 
+        private void GenerateVTableClassSetupCall(Class @class)
+        {
+            var entries = GetVTableMethodEntries(@class);
+            if (Options.GenerateVirtualTables && @class.IsDynamic && entries.Count != 0)
+                WriteLine("SetupVTables({0});", Generator.GeneratedIdentifier("Instance"));
+        }
+
         private void GenerateVTableManagedCall(Method method)
         {
             if (method.IsDestructor)
@@ -1605,8 +1616,7 @@ namespace CppSharp.Generators.CSharp
                 if (ShouldGenerateClassNativeField(@class))
                 {
                     WriteLine("{0} = native;", Helpers.InstanceIdentifier);
-                    if (Options.GenerateVirtualTables && @class.IsDynamic)
-                        WriteLine("SetupVTables({0});", Generator.GeneratedIdentifier("Instance"));
+                    GenerateVTableClassSetupCall(@class);
                 }
             }
             else
@@ -1857,8 +1867,7 @@ namespace CppSharp.Generators.CSharp
                 WriteLine(");");
             }
 
-            if (Options.GenerateVirtualTables && @class.IsDynamic)
-                WriteLine("SetupVTables({0});", Generator.GeneratedIdentifier("Instance"));
+            GenerateVTableClassSetupCall(@class);
         }
 
         public void GenerateInternalFunctionCall(Function function,