mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-05-19 03:00:25 +02:00
52381a17c4
* module/ice-9/annotate.scm (<annotation>): Slightly more concise printing. (annotate): Don't create annotations if we have no source info. * module/ice-9/psyntax.scm (annotation?): Remove this definition, as we now provide annotation support. * module/ice-9/psyntax-pp.scm: Regenerated. * module/ice-9/syncase.scm: Use (ice-9 annotate). * module/language/scheme/expand.scm (eval-when): Define the eval-when transformer.
65 lines
2.3 KiB
Scheme
65 lines
2.3 KiB
Scheme
;;;; Copyright (C) 2009 Free Software Foundation, Inc.
|
||
;;;;
|
||
;;;; This library is free software; you can redistribute it and/or
|
||
;;;; modify it under the terms of the GNU Lesser General Public
|
||
;;;; License as published by the Free Software Foundation; either
|
||
;;;; version 2.1 of the License, or (at your option) any later version.
|
||
;;;;
|
||
;;;; This library 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
|
||
;;;; Lesser General Public License for more details.
|
||
;;;;
|
||
;;;; You should have received a copy of the GNU Lesser General Public
|
||
;;;; License along with this library; if not, write to the Free Software
|
||
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
;;;;
|
||
|
||
|
||
(define-module (ice-9 annotate)
|
||
:export (<annotation> annotation? annotate deannotate make-annotation
|
||
annotation-expression annotation-source annotation-stripped
|
||
set-annotation-stripped!))
|
||
|
||
(define <annotation>
|
||
(make-vtable "prprpw"
|
||
(lambda (struct port)
|
||
(display "#<annotated " port)
|
||
(display (struct-ref struct 0) port)
|
||
(display ">" port))))
|
||
|
||
(define (annotation? x)
|
||
(and (struct? x) (eq? (struct-vtable x) <annotation>)))
|
||
|
||
(define (make-annotation e s . stripped?)
|
||
(if (null? stripped?)
|
||
(make-struct <annotation> 0 e s #f)
|
||
(apply make-struct <annotation> 0 e s stripped?)))
|
||
|
||
(define (annotation-expression a)
|
||
(struct-ref a 0))
|
||
(define (annotation-source a)
|
||
(struct-ref a 1))
|
||
(define (annotation-stripped a)
|
||
(struct-ref a 2))
|
||
(define (set-annotation-stripped! a)
|
||
(struct-set! a 2 #t))
|
||
|
||
(define (annotate e)
|
||
(let ((p (if (pair? e) (source-properties e) #f))
|
||
(out (cond ((and (list? e) (not (null? e)))
|
||
(map annotate e))
|
||
((pair? e)
|
||
(cons (annotate (car e)) (annotate (cdr e))))
|
||
(else e))))
|
||
(if (pair? p)
|
||
(make-annotation out p #f)
|
||
out)))
|
||
|
||
(define (deannotate e)
|
||
(cond ((list? e)
|
||
(map deannotate e))
|
||
((pair? e)
|
||
(cons (deannotate (car e)) (deannotate (cdr e))))
|
||
((annotation? e) (deannotate (annotation-expression e)))
|
||
(else e)))
|