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88 lines
2.9 KiB
Scheme
88 lines
2.9 KiB
Scheme
;;;; (ice-9 debugger trc) -- tracing for Guile debugger code
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;;; Copyright (C) 2002 Free Software Foundation, Inc.
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;;;
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;;; This program is free software; you can redistribute it and/or
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;;; modify it under the terms of the GNU General Public License as
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;;; published by the Free Software Foundation; either version 2, or
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;;; (at your option) any later version.
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;;;
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;;; This program is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;; General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with this software; see the file COPYING. If not, write to
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;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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;;; Boston, MA 02111-1307 USA
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;;;
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;;; As a special exception, the Free Software Foundation gives permission
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;;; for additional uses of the text contained in its release of GUILE.
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;;;
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;;; The exception is that, if you link the GUILE library with other files
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;;; to produce an executable, this does not by itself cause the
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;;; resulting executable to be covered by the GNU General Public License.
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;;; Your use of that executable is in no way restricted on account of
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;;; linking the GUILE library code into it.
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;;;
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;;; This exception does not however invalidate any other reasons why
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;;; the executable file might be covered by the GNU General Public License.
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;;;
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;;; This exception applies only to the code released by the
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;;; Free Software Foundation under the name GUILE. If you copy
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;;; code from other Free Software Foundation releases into a copy of
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;;; GUILE, as the General Public License permits, the exception does
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;;; not apply to the code that you add in this way. To avoid misleading
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;;; anyone as to the status of such modified files, you must delete
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;;; this exception notice from them.
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;;;
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;;; If you write modifications of your own for GUILE, it is your choice
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;;; whether to permit this exception to apply to your modifications.
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;;; If you do not wish that, delete this exception notice.
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(define-module (ice-9 debugger trc)
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#:export (trc trc-syms trc-all trc-none trc-add trc-remove trc-port))
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(define *syms* #f)
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(define (trc-set! syms)
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(set! *syms* syms))
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(define (trc-syms . syms)
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(trc-set! syms))
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(define (trc-all)
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(trc-set! #f))
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(define (trc-none)
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(trc-set! '()))
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(define (trc-add sym)
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(trc-set! (cons sym *syms*)))
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(define (trc-remove sym)
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(trc-set! (delq1! sym *syms*)))
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(define (trc sym . args)
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(if (or (not *syms*)
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(memq sym *syms*))
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(let ((port (trc-port)))
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(write sym port)
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(display ":" port)
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(for-each (lambda (arg)
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(display " " port)
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(write arg port))
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args)
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(newline port))))
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(define trc-port
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(let ((port (current-error-port)))
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(make-procedure-with-setter
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(lambda () port)
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(lambda (p) (set! port p)))))
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;; Default to no tracing.
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(trc-none)
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;;; (ice-9 debugger trc) ends here.
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