mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-05-02 04:40:29 +02:00
81 lines
2.5 KiB
Scheme
81 lines
2.5 KiB
Scheme
;;;; Copyright (C) 1999, 2000, 2005, 2006 Free Software Foundation, Inc.
|
||
;;;;
|
||
;;;; This program is free software; you can redistribute it and/or modify
|
||
;;;; it under the terms of the GNU General Public License as published by
|
||
;;;; the Free Software Foundation; either version 2, or (at your option)
|
||
;;;; any later version.
|
||
;;;;
|
||
;;;; This program is distributed in the hope that it will be useful,
|
||
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;;;; GNU General Public License for more details.
|
||
;;;;
|
||
;;;; You should have received a copy of the GNU General Public License
|
||
;;;; along with this software; see the file COPYING. If not, write to
|
||
;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
||
;;;; Boston, MA 02110-1301 USA
|
||
;;;;
|
||
|
||
|
||
(define-module (oop goops accessors)
|
||
:use-module (oop goops)
|
||
:re-export (standard-define-class)
|
||
:export (define-class-with-accessors
|
||
define-class-with-accessors-keywords))
|
||
|
||
(define define-class-with-accessors
|
||
(procedure->memoizing-macro
|
||
(lambda (exp env)
|
||
(let ((name (cadr exp))
|
||
(supers (caddr exp))
|
||
(slots (cdddr exp))
|
||
(eat? #f))
|
||
`(standard-define-class ,name ,supers
|
||
,@(map-in-order
|
||
(lambda (slot)
|
||
(cond (eat?
|
||
(set! eat? #f)
|
||
slot)
|
||
((keyword? slot)
|
||
(set! eat? #t)
|
||
slot)
|
||
((pair? slot)
|
||
(if (get-keyword #:accessor (cdr slot) #f)
|
||
slot
|
||
(let ((name (car slot)))
|
||
`(,name #:accessor ,name ,@(cdr slot)))))
|
||
(else
|
||
`(,slot #:accessor ,slot))))
|
||
slots))))))
|
||
|
||
(define define-class-with-accessors-keywords
|
||
(procedure->memoizing-macro
|
||
(lambda (exp env)
|
||
(let ((name (cadr exp))
|
||
(supers (caddr exp))
|
||
(slots (cdddr exp))
|
||
(eat? #f))
|
||
`(standard-define-class ,name ,supers
|
||
,@(map-in-order
|
||
(lambda (slot)
|
||
(cond (eat?
|
||
(set! eat? #f)
|
||
slot)
|
||
((keyword? slot)
|
||
(set! eat? #t)
|
||
slot)
|
||
((pair? slot)
|
||
(let ((slot
|
||
(if (get-keyword #:accessor (cdr slot) #f)
|
||
slot
|
||
(let ((name (car slot)))
|
||
`(,name #:accessor ,name ,@(cdr slot))))))
|
||
(if (get-keyword #:init-keyword (cdr slot) #f)
|
||
slot
|
||
(let* ((name (car slot))
|
||
(keyword (symbol->keyword name)))
|
||
`(,name #:init-keyword ,keyword ,@(cdr slot))))))
|
||
(else
|
||
`(,slot #:accessor ,slot
|
||
#:init-keyword ,(symbol->keyword slot)))))
|
||
slots))))))
|