public void Add <BaseT, SubT>(Func <SubT> factory) where SubT : BaseT
{
Func <object> f = () => factory();
var baseType = typeof(BaseT);
var realType = typeof(SubT);
TypeRefs.AddIfNotExist(baseType, realType);
TypeRefs.AddIfNotExist(realType, realType);
var funcRef = Factories.GetFuncRef(realType);
if (funcRef == null)
{
Factories.AddFuncRef(realType, f);
}
}