Hrm... that's a bit problematic. If I do use the exact match, it seems to hang / lock up (probably the lack of support for classes?). However, that's pretty much never the case of what I want to do, since what I'm trying to do involves passing / accepting an interface and its implementations.
I guess I can manage this with a static table of operation IDs pointing to function delegates. Sadness. Haha Alright, thankee!