source: trunk/j/src/org/armedbear/lisp/defmacro.lisp @ 11288

Last change on this file since 11288 was 11288, checked in by ehuelsmann, 13 years ago

Set svn:eol-style property on (most) Java and all lisp files.

  • Property svn:eol-style set to native
File size: 1.6 KB
Line 
1;;; defmacro.lisp
2;;;
3;;; Copyright (C) 2003-2006 Peter Graves
4;;; $Id: defmacro.lisp,v 1.7 2006-03-17 01:33:42 piso Exp $
5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
20;;;; Adapted from CMUCL/SBCL.
21
22(in-package #:system)
23
24;; Redefine DEFMACRO to use PARSE-DEFMACRO.
25(defmacro defmacro (name lambda-list &rest body)
26  (let* ((whole (gensym "WHOLE-"))
27         (env   (gensym "ENVIRONMENT-")))
28    (multiple-value-bind (body decls)
29        (parse-defmacro lambda-list whole body name 'defmacro :environment env)
30      (let ((expander `(lambda (,whole ,env) ,@decls ,body)))
31        `(progn
32           (let ((macro (make-macro ',name
33                                    (or (precompile nil ,expander) ,expander))))
34             ,@(if (special-operator-p name)
35                   `((put ',name 'macroexpand-macro macro))
36                   `((fset ',name macro)))
37             (%set-arglist macro ',lambda-list)
38             ',name))))))
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