From: Xavier Leroy <xavier.leroy@inria.fr>
To: Brian Hurt <brian.hurt@qlogic.com>
Cc: Ocaml Mailing List <caml-list@inria.fr>
Subject: Re: [Caml-list] Checked exceptions and type inference
Date: Wed, 12 Mar 2003 09:45:05 +0100 [thread overview]
Message-ID: <20030312094505.A9667@pauillac.inria.fr> (raw)
In-Reply-To: <Pine.LNX.4.33.0303111538120.2164-100000@eagle.ancor.com>; from brian.hurt@qlogic.com on Tue, Mar 11, 2003 at 03:50:13PM -0600
> Is there any research on using checked exceptions in an ML derived
> language? Any plans/opinions on implementing checked exceptions in Ocaml?
As Jacques mentioned, you can look at François Pessaux's work, e.g.
our TOPLAS article
http://pauillac.inria.fr/~xleroy/publi/exceptions-toplas.ps.gz
Briefly, Java-style exception declarations just don't work with
higher-order functions and parametric polymorphism. For ML, you need
row polymorphism on the exception declarations to achieve sufficient
precision, and the resulting types are complicated enough that you
don't want to write them in module interfaces. The solution François
explored is to infer completely these exception annotations with a
whole-program analysis.
- Xavier Leroy
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next prev parent reply other threads:[~2003-03-12 8:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-11 21:50 Brian Hurt
2003-03-12 5:40 ` Jacques Garrigue
2003-03-12 8:45 ` Xavier Leroy [this message]
2003-03-12 10:12 ` Stefano Zacchiroli
2003-03-12 16:34 ` Xavier Leroy
2003-03-12 17:20 ` Richard W.M. Jones
2003-03-12 20:49 ` Brian Hurt
2003-03-12 18:45 ` William Chesters
2003-03-12 3:00 Arturo Borquez
2003-03-12 3:24 ` Nicolas Cannasse
2003-03-12 3:43 ` mgushee
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