Re: multi-parameter classes

Malcolm Wallace <[email protected]> Mon, 17 Nov 2003 10:36:45 +0000

Newsgroups	gmane.comp.lang.haskell.nhc.user
Organization	Dept of Computer Science, University of York
Message-ID	<[email protected]>

Wolfgang Jeltsch <[email protected]> writes:

> how big are the chances that NHC will support multi-parameter classes in the
> near future?

Small.  We would undoubtedly like to support MPTC + fundeps, but

  (a) the structure of nhc98's type engine is somewhat obscure (for instance
      it appears to lack kind inference), and it might be easier to replace
      than to modify;
  (b) no-one has yet volunteered the time needed.

Regards,
    Malcolm