source: trunk/j/src/org/armedbear/lisp/compiler-macro.lisp @ 4687

Last change on this file since 4687 was 4687, checked in by piso, 18 years ago

Initial checkin.

File size: 1.5 KB
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1;;; compiler-macro.lisp
2;;;
3;;; Copyright (C) 2003 Peter Graves
4;;; $Id: compiler-macro.lisp,v 1.1 2003-11-10 00:11:44 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(in-package "SYSTEM")
21
22(defun compiler-macro-function (name &optional environment)
23  (get name 'compiler-macro-expander))
24
25(defun (setf compiler-macro-function) (new-function name &optional environment)
26  (%put name 'compiler-macro-expander new-function))
27
28(defmacro define-compiler-macro (name lambda-list &rest body)
29  (let* ((form (gensym))
30         (env (gensym))
31         (body (sys::parse-defmacro lambda-list form body name 'defmacro
32                                    :environment env))
33         (expander `(lambda (,form ,env) (block ,name ,body))))
34    `(progn
35       (sys::%put ',name 'compiler-macro-expander ,expander)
36       ',name)))
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