[bpt/guile.git] / module / ice-9 / debugging / trc.scm

;;;; (ice-9 debugging trc) -- tracing for Guile debugger code

;;; Copyright (C) 2002, 2004 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 3 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 debugging trc)
  #:export (trc trc-syms trc-all trc-none trc-add trc-remove trc-port))

(define *syms* #f)

(define (trc-set! syms)
  (set! *syms* syms))

(define (trc-syms . syms)
  (trc-set! syms))

(define (trc-all)
  (trc-set! #f))

(define (trc-none)
  (trc-set! '()))

(define (trc-add sym)
  (trc-set! (cons sym *syms*)))

(define (trc-remove sym)
  (trc-set! (delq1! sym *syms*)))

(define (trc sym . args)
  (if (or (not *syms*)
	  (memq sym *syms*))
      (let ((port (trc-port)))
	(write sym port)
	(display ":" port)
	(for-each (lambda (arg)
		    (display " " port)
		    (write arg port))
		  args)
	(newline port))))

(define trc-port
  (let ((port (current-error-port)))
    (make-procedure-with-setter
     (lambda () port)
     (lambda (p) (set! port p)))))

;; Default to no tracing.
(trc-none)

;;; (ice-9 debugging trc) ends here.
Commit	Line	Data
8746959c NJ	1	;;;; (ice-9 debugging trc) -- tracing for Guile debugger code
	2
	3	;;; Copyright (C) 2002, 2004 Free Software Foundation, Inc.
	4	;;;
53befeb7 NJ	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 3 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
8746959c NJ	18
	19	(define-module (ice-9 debugging trc)
	20	#:export (trc trc-syms trc-all trc-none trc-add trc-remove trc-port))
	21
	22	(define syms #f)
	23
	24	(define (trc-set! syms)
	25	(set! syms syms))
	26
	27	(define (trc-syms . syms)
	28	(trc-set! syms))
	29
	30	(define (trc-all)
	31	(trc-set! #f))
	32
	33	(define (trc-none)
	34	(trc-set! '()))
	35
	36	(define (trc-add sym)
	37	(trc-set! (cons sym syms)))
	38
	39	(define (trc-remove sym)
	40	(trc-set! (delq1! sym syms)))
	41
	42	(define (trc sym . args)
	43	(if (or (not syms)
	44	(memq sym syms))
	45	(let ((port (trc-port)))
	46	(write sym port)
	47	(display ":" port)
	48	(for-each (lambda (arg)
	49	(display " " port)
	50	(write arg port))
	51	args)
	52	(newline port))))
	53
	54	(define trc-port
	55	(let ((port (current-error-port)))
	56	(make-procedure-with-setter
	57	(lambda () port)
	58	(lambda (p) (set! port p)))))
	59
	60	;; Default to no tracing.
	61	(trc-none)
	62
	63	;;; (ice-9 debugging trc) ends here.