From: Michael Vanier <mvanier@cs.caltech.edu>
To: skaller@users.sourceforge.net
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] extensible records again
Date: Sun, 21 Mar 2004 21:54:30 -0800 (PST) [thread overview]
Message-ID: <20040322055430.A45C89BBA2@orchestra.cs.caltech.edu> (raw)
In-Reply-To: <1079926276.3165.49.camel@pelican.wigram> (message from skaller on 22 Mar 2004 14:31:16 +1100)
> From: skaller <skaller@users.sourceforge.net>
> Date: 22 Mar 2004 14:31:16 +1100
>
> On Mon, 2004-03-22 at 09:34, Michael Vanier wrote:
>
> > If I understand you correctly, then you're arguing that *all* my "core
> > types" should be implemented using polymorphic variants.
>
> I use Polymorphic Variants almost exclusively in Felix.
> They're more flexible but also give nastier error messages.
>
> The main downside is that to make covariant subtyping
> you need to use fixpoints, which is fine for a single
> parameter but unworkable for a more complex term
> structure.
Forgive my ignorance, but what do you mean by this?
Mike
-------------------
To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners
next prev parent reply other threads:[~2004-03-22 5:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-21 6:21 Michael Vanier
2004-03-21 8:08 ` Oleg Trott
2004-03-21 8:40 ` Michael Vanier
2004-03-21 16:10 ` Oleg Trott
2004-03-21 17:06 ` skaller
2004-03-21 17:36 ` Oleg Trott
2004-03-22 3:19 ` skaller
2004-03-22 7:49 ` Ville-Pertti Keinonen
2004-03-22 9:32 ` Oleg Trott
2004-03-22 10:25 ` Ville-Pertti Keinonen
2004-03-21 22:35 ` Michael Vanier
2004-03-22 3:39 ` skaller
2004-03-21 22:34 ` Michael Vanier
2004-03-22 3:31 ` skaller
2004-03-22 5:54 ` Michael Vanier [this message]
2004-03-23 19:14 ` skaller
2004-03-24 1:41 ` Jacques Garrigue
2004-03-24 8:44 ` Julien Signoles
2004-03-24 10:04 ` Jacques Garrigue
2004-03-21 8:53 ` Martin Jambon
2004-03-21 9:22 ` Michael Vanier
2004-03-21 17:00 ` skaller
2004-03-22 8:13 ` Achim Blumensath
2004-03-23 2:14 ` Michael Vanier
2004-03-23 7:25 ` Achim Blumensath
2004-03-31 10:05 ` Marcin 'Qrczak' Kowalczyk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040322055430.A45C89BBA2@orchestra.cs.caltech.edu \
--to=mvanier@cs.caltech.edu \
--cc=caml-list@inria.fr \
--cc=skaller@users.sourceforge.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox