[Mono-list] Embedded API: Method signature not found with generic parameter

[jonathan at mugginsoft.com]

On 12 Jul 2013, at 21:48, jonathan at mugginsoft.com wrote:

> Can I obtain the generic template type from my ObjectSet MonoObject pointer rather than having to obtain it from a const char*.
> I am trying to write a "generic" routine for calling generic methods.
> 
Perhaps another helper method is the way to go as working with generics directly through the embedded API seems so unpalatable.
This seems to work.

        public static Type[] GenericArgumentTypes(Type t)
        {
            Type[] types = null;
            if (t.ContainsGenericParameters) {
                types = t.GetGenericArguments ();
            }
            return types;
        }

        public static IntPtr GenericArgumentTypeAtIndex(Type t, int index)
        {
            Type argType = null;
            Type[] genericTypes = t.GetGenericArguments();
            if (genericTypes != null & index < genericTypes.Length) {
                argType = genericTypes[index];
            }
            return argType.TypeHandle.Value;
        }

I presume it will be slower invoking the C# rather than wrestling with the runtime API directly but in my case the final method is cached in a Judy array so it is a one time hit for each method signature called during the lifetime of the domain.

Jonathan