From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=AWL autolearn=disabled version=3.1.3 X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from mail1-relais-roc.national.inria.fr (mail1-relais-roc.national.inria.fr [192.134.164.82]) by yquem.inria.fr (Postfix) with ESMTP id C3F4FBBC1 for ; Thu, 21 Feb 2008 11:54:43 +0100 (CET) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAABfnvEfAXQInh2dsb2JhbACQXQEBAQgKKZ8J X-IronPort-AV: E=Sophos;i="4.25,385,1199660400"; d="scan'208";a="8375460" Received: from concorde.inria.fr ([192.93.2.39]) by mail1-smtp-roc.national.inria.fr with ESMTP; 21 Feb 2008 11:54:43 +0100 Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id m1LAsh0o014783 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=OK) for ; Thu, 21 Feb 2008 11:54:43 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAAKbnvEfBMVMPk2dsb2JhbACQXQEBAQEHBAYJIJ8O X-IronPort-AV: E=Sophos;i="4.25,385,1199660400"; d="scan'208";a="9419763" Received: from kabis.univ-orleans.fr (HELO ka.univ-orleans.fr) ([193.49.83.15]) by mail3-smtp-sop.national.inria.fr with ESMTP; 21 Feb 2008 11:54:44 +0100 Received: from smtps.univ-orleans.fr (localhost [127.0.0.1]) by ka.univ-orleans.fr (Postfix) with ESMTP id C33A012AE37; Thu, 21 Feb 2008 11:46:18 +0100 (CET) Received: from [192.168.0.12] (ras75-4-82-235-58-110.fbx.proxad.net [82.235.58.110]) by smtps.univ-orleans.fr (Postfix) with ESMTP id 8624536E5B; Thu, 21 Feb 2008 11:46:19 +0100 (CET) Subject: Re: [Caml-list] Auto-closing polymorphic variants ? From: David Teller To: Martin Jambon Cc: OCaml In-Reply-To: References: <1203541049.11853.36.camel@Blefuscu> Content-Type: text/plain Date: Thu, 21 Feb 2008 11:46:17 +0100 Message-Id: <1203590777.6304.6.camel@Blefuscu> Mime-Version: 1.0 X-Mailer: Evolution 2.12.1 Content-Transfer-Encoding: 7bit X-Miltered: at concorde with ID 47BD5873.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; variants:01 univ-orleans:01 type-checker:01 cheers:01 0100,:01 wildcards:01 univ-orleans:01 lifo:01 liquidations:98 polymorphic:01 wrote:01 caml-list:01 jambon:01 thu:05 distributed:05 Well, sure, but that's a bit unsatisfying, as it's a policy which the type-checker cannot check. Cheers, David On Thu, 2008-02-21 at 01:29 +0100, Martin Jambon wrote: > > Does anyone have ideas on this subject ? > > Yes: don't use wildcards mixed with concrete cases: > > Good: function `A -> ... | `B -> ... > Good: function _ -> ... > > Bad: function `A -> ... | _ -> ... -- David Teller Security of Distributed Systems http://www.univ-orleans.fr/lifo/Members/David.Teller Angry researcher: French Universities need reforms, but the LRU act brings liquidations.