public virtual void GenerateMethod(PropertyInfo pi, MethodInfo mi, ILGenerator gen)
 {
     gen.Emit(OpCodes.Ldarg_0); // this
     gen.Emit(OpCodes.Ldc_I4, _index); // _index;
     gen.Emit(OpCodes.Stfld, _mc.MethodIndexField); // [s1]._methodIndex = [s0];
     gen.EmitLdDefaultValue(mi.ReturnType);
     gen.Emit(OpCodes.Ret);
     ++_index;
 }
 public virtual void PushDefaultReturnValue(ILGenerator gen, Type returnType)
 {
     if (returnType.IsInterface)
     {
         var pcd = SafeFactory.CreateSafeNullProxyDescriptorFor(returnType);
         var proxyType = _proxyModule.GetTypeFromProxyClassDescriptor(pcd);
         StaticInstanceMixin.PushInstanceOnStackFor(proxyType,gen);
     }
     else
         gen.EmitLdDefaultValue(returnType);
 }