From: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp>
To: Dario Teixeira <darioteixeira@yahoo.com>
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Merging object signatures
Date: Fri, 5 Nov 2010 23:45:25 +0900 [thread overview]
Message-ID: <3D8D99E9-F325-4697-B261-4B39E3E7F00A@gmail.com> (raw)
In-Reply-To: <482197.73063.qm@web111512.mail.gq1.yahoo.com>
On 2010/11/05, at 21:58, Dario Teixeira wrote:
>> Can't you make foo_t and bar_t class types and foobar_t inherits them
>> both?
>
> Thanks for the reply. Yes, in the toy example I posted that would indeed
> be an alternative. Still, I'm wondering about the most general case;
> suppose I had a function that took an object satisfying both foo_t and bar_t:
>
> val do_something: < foo_t; bar_t; .. > -> bool
>
> This is what I'm wondering if it's possible to express.
Same thing:
class type foobar_t = object inherit foo_t inherit bar_t end
val do_something : #foobar_t -> bool
I agree that this is rather verbose.
I thought a few times of adding the syntax you propose, but was always
stopped by the fact you can already do it in a verbose way.
Jacques Garrigue
next prev parent reply other threads:[~2010-11-05 14:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 18:55 Dario Teixeira
2010-11-04 20:01 ` [Caml-list] " Goswin von Brederlow
2010-11-05 12:58 ` Dario Teixeira
2010-11-05 14:45 ` Jacques Garrigue [this message]
2010-11-05 17:58 ` Dario Teixeira
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=3D8D99E9-F325-4697-B261-4B39E3E7F00A@gmail.com \
--to=garrigue@math.nagoya-u.ac.jp \
--cc=caml-list@yquem.inria.fr \
--cc=darioteixeira@yahoo.com \
/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;
as well as URLs for NNTP newsgroup(s).