Most of this is mechanical: changing function names, and carrying the "wptr"
argument around. I've made the code for computing Expressions from Structureds
a bit more generic too.
The only complex bit is the handling of PAR processes, which I'm not very happy
with at the moment; they used to use the normal C calling convention, but now
you need to pack the arguments into the workspace. I'm handling this at the
moment by generating wrapper functions that do the unpacking, but it would be
better in the future to make the wrapper PROCs that we already generate have
the right interface.
This won't work for programs that use any of the top-level channels yet, since
there are no handlers for them.
This patch is actually an amalgam of multiple (already large) patches. Those patches conflicted (parameterised Structured vs. changes to usage checking and FlowGraph) and encountered a nasty bug in darcs 1 involving exponential time (see http://wiki.darcs.net/DarcsWiki/ConflictsFAQ for more details). Reasoning that half an hour (of 100% CPU use) was too long to apply patches, I opted to re-record the parameterised Structured changes as this new large patch. Here are the commit messages originally used for the patches (which, as mentioned, were already large patches):
A gigantic patch switching all the non-test modules over to using parameterised A.Structured
Changed the FlowGraph module again to handle any sort of Structured you want to pass to it (mainly for testing)
A further gigantic patch changing all the tests to work with the new parameterised Structured
Fixed a nasty bug involving functions being named incorrectly inside transformInputCase
Added a hand-written instance of Data for Structured that allows us to use ext1M properly
Fixed a few warnings in the code
The function showCode shows code as either occam or Rain depending on the frontend. This is then used by a formatCode function that acts similar to
printf, which makes it easy to format error messages that use showCode.
