[racket] Transitively extend redex metafunctions

On Fri, Dec 7, 2012 at 8:43 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
>
> Also, metafunctions (and everything else) expand into functions that
> accept a language (as a value at runtime) to create extensions. So the
> main work is just sorting out how the module system should work (I
> think it can be first-order for example) and then setting up the
> expansion to pass the languages around at right points.

In the interim, would it make sense to expose these functions (perhaps
via a reflective `metafunction->value` operation) so that people could
do this wiring themselves if neccessary?

Sam