/usr/share/guile/1.8/oop/goops/accessors.scm is in guile-1.8-libs 1.8.8+1-6ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;;;;
;;;; 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))))))
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