On Mon 25 Feb 2013 01:34, Mark H Weaver <[email protected]> writes: > The current limitation of 10 arguments to foreign functions is proving > to be a problem for some libraries, in particular the Allegro game > library. > > Is there a reason why raising this limit to 16 or 20 would be > undesirable? What tradeoffs are involved?
Each arity of foreign functions gets a little VM program stub that checks the argument count then actually does the call. We statically generate the first N of those arities (currently 10), and then for the rest we should dynamically allocate the objcode stubs. Dynamic allocation is currently unimplemented. We could raise the pregenerated size, but I think it would be better to do the dynamic allocation thing. Andy -- http://wingolog.org/
