From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Mikael Djurfeldt Newsgroups: gmane.lisp.guile.devel Subject: Recent change to syncase.scm Date: Thu, 16 Jan 2003 13:01:09 +0100 Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Message-ID: Reply-To: Mikael Djurfeldt NNTP-Posting-Host: main.gmane.org X-Trace: main.gmane.org 1042719940 16937 80.91.224.249 (16 Jan 2003 12:25:40 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Thu, 16 Jan 2003 12:25:40 +0000 (UTC) Cc: djurfeldt@nada.kth.se Return-path: Original-Received: from monty-python.gnu.org ([199.232.76.173]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 18Z95W-0004P3-00 for ; Thu, 16 Jan 2003 13:25:38 +0100 Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org) by monty-python.gnu.org with esmtp (Exim 4.10.13) id 18Z8zb-0005ZH-04 for guile-devel@m.gmane.org; Thu, 16 Jan 2003 07:19:31 -0500 Original-Received: from list by monty-python.gnu.org with tmda-scanned (Exim 4.10.13) id 18Z8rA-00016w-00 for guile-devel@gnu.org; Thu, 16 Jan 2003 07:10:48 -0500 Original-Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.10.13) id 18Z8qu-0000nu-00 for guile-devel@gnu.org; Thu, 16 Jan 2003 07:10:34 -0500 Original-Received: from kvast.blakulla.net ([213.212.20.77]) by monty-python.gnu.org with esmtp (Exim 4.10.13) id 18Z8hs-0006ym-00 for guile-devel@gnu.org; Thu, 16 Jan 2003 07:01:12 -0500 Original-Received: from barbara.blakulla.net ([213.212.21.238] helo=linnaeus) by kvast.blakulla.net with esmtp (Exim 3.36 #1 (Debian)) id 18Z8hq-0003Jg-00; Thu, 16 Jan 2003 13:01:10 +0100 Original-Received: from mdj by linnaeus with local (Exim 3.36 #1 (Debian)) id 18Z8hp-0001cH-00; Thu, 16 Jan 2003 13:01:09 +0100 Original-To: Marius Vollmer Original-cc: guile-devel@gnu.org X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1b5 Precedence: list List-Id: Developers list for Guile, the GNU extensibility library List-Help: List-Post: List-Subscribe: , List-Archive: List-Unsubscribe: , Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: main.gmane.org gmane.lisp.guile.devel:1873 X-Report-Spam: http://spam.gmane.org/gmane.lisp.guile.devel:1873 Just F.Y.I.: I've enabled Guile macro macro expansion in syntax-case macro expansion. This means that, for the first time, Guile macros and syntax-case macros should play reasonably well together. One of the good effects is that goops code now can use syntax-case macros. There is one constraint, however: Macro expansion is made in advance of evaluation. This has the effect that the environment argument of the Guile macro transformer can't easily be used for looking up bindings. It *is* still possible to use it to differ between top-level and a lexical environment, though. It is also possible to extract the eval-closure. It *is* possible to make them play perfectly together, by delaying expansion (and further syncase expansion) until evaluation, but I figured this wasn't very useful since Dirk is working on pre-evaluation expansion anyway. Best regards, M _______________________________________________ Guile-devel mailing list Guile-devel@gnu.org http://mail.gnu.org/mailman/listinfo/guile-devel