caml-list - the Caml user's mailing list
 help / color / mirror / Atom feed
From: Anton Moscal <msk@post.tepkom.ru>
To: John Max Skaller <skaller@ozemail.com.au>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] two unrelated questions
Date: Fri, 27 Apr 2001 13:12:23 +0400 (MSD)	[thread overview]
Message-ID: <Pine.LNX.4.21.0104271309060.8219-100000@kouzdra.glokaya> (raw)
In-Reply-To: <3AE80F56.DFDC823F@ozemail.com.au>

On Thu, 26 Apr 2001, John Max Skaller wrote:

> Unfortunately:
> 
> 	let f x = 
> 		exception Break 
> 		try ... raise Break ...
> 		with Break -> ()
> 	;;
> 
> is in error, because exception declarations must be at the top
> level. This prevents desired localisation: this feature is not
> as good as a labelled break for this purpose.

For this problem workaround exists:

let f x = 
   let module M = struct
        exception Break
        let v = try ... raise Break ... with Break ->...
       end
   in M.v

I made syntax extension for camlp4 and now can write something like this:

let f x = let exception Break in ...

Regards,
Anton
-------------------
To unsubscribe, mail caml-list-request@inria.fr.  Archives: http://caml.inria.fr


  reply	other threads:[~2001-04-29 21:05 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-25 21:08 Chris Hecker
2001-04-26  0:38 ` Patrick M Doane
2001-04-26  6:04   ` Judicaël Courant
2001-04-26 12:06     ` John Max Skaller
2001-04-27  9:12       ` Anton Moscal [this message]
2001-04-29 22:24         ` Brian Rogoff
2001-04-30 18:57           ` Fergus Henderson
2001-05-01  1:31           ` Jacques Garrigue
2001-05-01 12:45             ` [Caml-list] " Ken Friis Larsen
2001-04-27 15:09       ` [Caml-list] " Brian Rogoff
2001-04-27 17:49         ` John Max Skaller
2001-04-26  8:22   ` Andreas Rossberg
2001-04-26  1:13 ` Jacques Garrigue
2001-04-26 13:47 ` Xavier Leroy
2001-04-26 22:34   ` Chris Hecker
2001-04-26 16:57 ` Mark Seaborn
2001-04-26 22:20   ` John Max Skaller
2001-05-01 21:08     ` Brian Rogoff
2001-05-01 23:30       ` John Max Skaller
2001-05-02  0:03       ` John Max Skaller
2001-05-01 17:25 Dave Berry

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=Pine.LNX.4.21.0104271309060.8219-100000@kouzdra.glokaya \
    --to=msk@post.tepkom.ru \
    --cc=caml-list@inria.fr \
    --cc=skaller@ozemail.com.au \
    /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).