From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by yquem.inria.fr (Postfix) with ESMTP id 097DFBB81 for ; Wed, 9 Nov 2005 17:18:08 +0100 (CET) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id jA9GI7OE002008 for ; Wed, 9 Nov 2005 17:18:07 +0100 Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id RAA19476 for ; Wed, 9 Nov 2005 17:18:06 +0100 (MET) Received: from mail.barettadeit.com (h213-255-109-130.albacom.net [213.255.109.130] (may be forged)) by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id jA9GI5Vm001997 for ; Wed, 9 Nov 2005 17:18:06 +0100 Received: from [10.0.0.10] (host73-158.pool8263.interbusiness.it [82.63.158.73]) by mail.barettadeit.com (Postfix) with ESMTP id 3A26E367B8F for ; Wed, 9 Nov 2005 17:22:55 +0100 (CET) Message-ID: <43722134.2060301@barettadeit.com> Date: Wed, 09 Nov 2005 17:17:56 +0100 From: Alessandro Baretta User-Agent: Debian Thunderbird 1.0.7 (X11/20051017) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ocaml Subject: Type system difference between 3.08.4 and 3.09.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Miltered: at concorde with ID 4372213F.001 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Miltered: at concorde with ID 4372213E.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; baretta:01 baretta:01 lib:01 pxp:01 pxp:01 lib:01 cmo:01 aback:98 node:01 node:01 typing:01 typing:01 constraints:02 expressions:03 alessandro:03 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=FORGED_RCVD_HELO autolearn=disabled version=3.0.3 I am taken aback by a typing error I don't understand, which did not occur with 3.08.4. File "as_xcaml/xdbs/xdbs_lib/xdbs_sql_translator.ml", line 36, characters 17-30: Constraints are not satisfied in this type. Type Xdbs_sql_extensions.xdbs_ext Pxp_document.node should be an instance of ('a Pxp_document.node #Pxp_document.extension as 'a) Pxp_document.node make[1]: *** [as_xcaml/xdbs/xdbs_lib/xdbs_sql_translator.cmo] Error 2 I am trying to decypher what's going on. It would help me a lot to know if and what changes have been made in 3.09.0 to the typing of class expressions. Alex