Date: Wed, 14 Jul 1999 17:43:03 +0200
From: Xavier Leroy <Xavier.Leroy@inria.fr>
To: Dave Mason <dmason@sarg.Ryerson.CA>, caml-list@inria.fr
Subject: Re: irritability of structure name conflicts
In-Reply-To: <199907131759.NAA00710@sarg.Ryerson.CA>; from Dave Mason on Tue, Jul 13, 1999 at 01:59:44PM -0400
> I didn't get the error before I added the field type! I'm (a)
> confused, and (b) irritated that I have to keep making up names for
> labels!
I agree it's an unpleasant feature of Caml, caused by the way we do
type inference on record accesses. E.g. if a label "lbl" could belong
to two named record types t1 and t2, "fun x -> x.lbl" would have
two types "t1 -> ..." and "t2 -> ..."
> Is there some way I can force it to interpret the type constructor as
> a particular type so that it chooses the labels from the correct set?
Currently no, but we discussed several possible approaches on this
list a while ago. If you're interested, you can search the archives
at http://caml.inria.fr/pub/old_caml_site/. (The subject line was "CamlIDL - stub code
generator and COM binding for OCaml".)
Best,
- Xavier Leroy
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