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;; geiser-debug.el -- displaying debug information
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Mon Feb 23, 2009 22:34
;; This file 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 3 of the License, or
;; (at your option) any later version.
;; This file 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 program. If not, see <http://www.gnu.org/licenses/>.
;;; Comentary:
;; Buffer and associated mode for displaying results of evaluations
;; and compilations.
;;; Code:
(require 'geiser-eval)
(require 'geiser-popup)
(require 'geiser-base)
;;; Debug buffer mode:
(defvar geiser-debug-mode-map
(let ((map (make-keymap)))
(suppress-keymap map)
(define-key map "g" 'geiser-debug-goto-error)
(define-key map "\C-c\C-c" 'geiser-debug-goto-error)
(define-key map "n" 'next-line)
(define-key map "p" 'previous-line)
map))
(define-derived-mode geiser-debug-mode compilation-mode "Geiser Dbg"
"A major mode for displaying Scheme compilation and evaluation results.
\\{geiser-debug-mode-map}")
;;; Buffer for displaying evaluation results:
(geiser-popup--define debug "*Geiser dbg*" geiser-debug-mode)
;;; Displaying retorts
(defun geiser-debug--display-retort (what ret)
(let* ((err (geiser-eval--retort-error ret))
(output (geiser-eval--retort-output ret))
(stack (geiser-eval--retort-stack ret))
(step 2)
(indent step))
(when err
(geiser-debug--with-buffer
(erase-buffer)
(insert what)
(newline 2)
(insert (geiser-eval--error-str err) "\n\n")
(when output (insert output "\n\n"))
(dolist (f (reverse (cdr stack)))
(geiser-debug--display-stack-frame f indent)
(setq indent (+ step indent)))
(goto-char (point-min)))
(geiser-debug--pop-to-buffer))))
(defsubst geiser-debug--frame-proc (frame) (cdr (assoc 'procedure frame)))
(defsubst geiser-debug--frame-desc (frame) (cdr (assoc 'description frame)))
(defsubst geiser-debug--frame-source (frame) (cdr (assoc 'source frame)))
(defsubst geiser-debug--frame-source-file (src) (car src))
(defsubst geiser-debug--frame-source-line (src) (or (cadr src) 1))
(defsubst geiser-debug--frame-source-column (src) (or (caddr src) 0))
(defun geiser-debug--display-stack-frame (frame offset)
(let ((procedure (geiser-debug--frame-proc frame))
(source (geiser-debug--frame-source frame))
(description (geiser-debug--frame-desc frame)))
(if source
(insert (format "%s:%s:%s\n"
(geiser-debug--frame-source-file source)
(geiser-debug--frame-source-line source)
(geiser-debug--frame-source-column source)))
(insert "In expression:\n"))
(insert (format "%s%s\n" (make-string offset ?\ ) description))))
(provide 'geiser-debug)
;;; geiser-debug.el ends here
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