1;;; installed-scm-file 2 3;;;; Copyright (C) 2001, 2006 Free Software Foundation, Inc. 4;;;; 5;;;; This library is free software; you can redistribute it and/or 6;;;; modify it under the terms of the GNU Lesser General Public 7;;;; License as published by the Free Software Foundation; either 8;;;; version 2.1 of the License, or (at your option) any later version. 9;;;; 10;;;; This library is distributed in the hope that it will be useful, 11;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of 12;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13;;;; Lesser General Public License for more details. 14;;;; 15;;;; You should have received a copy of the GNU Lesser General Public 16;;;; License along with this library; if not, write to the Free Software 17;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 18;;;; 19 20 21(define-module (oop goops old-define-method) 22 :use-module (oop goops) 23 :export (define-method) 24 :no-backtrace 25 ) 26 27(define define-method 28 (procedure->memoizing-macro 29 (lambda (exp env) 30 (let ((name (cadr exp))) 31 (if (and (pair? name) 32 (eq? (car name) 'setter) 33 (pair? (cdr name)) 34 (symbol? (cadr name)) 35 (null? (cddr name))) 36 (let ((name (cadr name))) 37 (cond ((not (symbol? name)) 38 (goops-error "bad method name: ~S" name)) 39 ((defined? name env) 40 `(begin 41 ;; *fixme* Temporary hack for the current module system 42 (if (not ,name) 43 (define-accessor ,name)) 44 (add-method! (setter ,name) (method ,@(cddr exp))))) 45 (else 46 `(begin 47 (define-accessor ,name) 48 (add-method! (setter ,name) (method ,@(cddr exp))))))) 49 (cond ((not (symbol? name)) 50 (goops-error "bad method name: ~S" name)) 51 ((defined? name env) 52 `(begin 53 ;; *fixme* Temporary hack for the current module system 54 (if (not ,name) 55 (define-generic ,name)) 56 (add-method! ,name (method ,@(cddr exp))))) 57 (else 58 `(begin 59 (define-generic ,name) 60 (add-method! ,name (method ,@(cddr exp))))))))))) 61