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(debugger-will-be-back): New var.

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(debug): Use it.
(debugger-step-through, debugger-continue, debugger-jump)
(debugger-return-value): Set it when needed.
(debugger-make-xrefs, debugger-frame, debugger-frame-clear):
Use inhibit-read-only.
This commit is contained in:
Stefan Monnier 2005-06-09 03:09:30 +00:00
parent f271d3c7bd
commit 9b530428ea
1 changed files with 22 additions and 5 deletions
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27
lisp/emacs-lisp/debug.el
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@ -88,6 +88,8 @@ This is to optimize `debugger-make-xrefs'.")
(defvar debugger-outer-standard-output)
(defvar debugger-outer-inhibit-redisplay)
(defvar debugger-outer-cursor-in-echo-area)
(defvar debugger-will-be-back nil
"Non-nil if we expect to get back in the debugger soon.")
(defvar inhibit-debug-on-entry nil
"Non-nil means that debug-on-entry is disabled.")
@ -123,6 +125,7 @@ first will be printed into the backtrace buffer."
(get-buffer-create "*Backtrace*")))
(debugger-old-buffer (current-buffer))
(debugger-step-after-exit nil)
(debugger-will-be-back nil)
;; Don't keep reading from an executing kbd macro!
(executing-kbd-macro nil)
;; Save the outer values of these vars for the `e' command
@ -218,13 +221,13 @@ first will be printed into the backtrace buffer."
(fundamental-mode)
(with-selected-window (get-buffer-window debugger-buffer 0)
(when (and (window-dedicated-p (selected-window))
(not debugger-step-after-exit))
(not debugger-will-be-back))
;; If the window is not dedicated, burying the buffer
;; will mean that the frame created for it is left
;; around showing some random buffer, and next time we
;; pop to the debugger buffer we'll create yet
;; another frame.
;; If debugger-step-after-exit is non-nil, the frame
;; If debugger-will-be-back is non-nil, the frame
;; would need to be de-iconified anyway immediately
;; after when we re-enter the debugger, so iconifying it
;; here would cause flashing.
@ -320,7 +323,7 @@ That buffer should be current already."
(save-excursion
(set-buffer (or buffer (current-buffer)))
(setq buffer (current-buffer))
(let ((buffer-read-only nil)
(let ((inhibit-read-only t)
(old-end (point-min)) (new-end (point-min)))
;; If we saved an old backtrace, find the common part
;; between the new and the old.
@ -390,6 +393,7 @@ Enter another debugger on next entry to eval, apply or funcall."
(interactive)
(setq debugger-step-after-exit t)
(setq debugger-jumping-flag t)
(setq debugger-will-be-back t)
(add-hook 'post-command-hook 'debugger-reenable)
(message "Proceeding, will debug on next eval or call.")
(exit-recursive-edit))
@ -400,6 +404,12 @@ Enter another debugger on next entry to eval, apply or funcall."
(unless debugger-may-continue
(error "Cannot continue"))
(message "Continuing.")
(save-excursion
;; Check to see if we've flagged some frame for debug-on-exit, in which
;; case we'll probably come back to the debugger soon.
(goto-char (point-min))
(if (re-search-forward "^\\* " nil t)
(setq debugger-will-be-back t)))
(exit-recursive-edit))
(defun debugger-return-value (val)
@ -410,6 +420,12 @@ will be used, such as in a debug on exit from a frame."
(setq debugger-value val)
(princ "Returning " t)
(prin1 debugger-value)
(save-excursion
;; Check to see if we've flagged some frame for debug-on-exit, in which
;; case we'll probably come back to the debugger soon.
(goto-char (point-min))
(if (re-search-forward "^\\* " nil t)
(setq debugger-will-be-back t)))
(exit-recursive-edit))
(defun debugger-jump ()
@ -419,6 +435,7 @@ will be used, such as in a debug on exit from a frame."
(setq debugger-jumping-flag t)
(add-hook 'post-command-hook 'debugger-reenable)
(message "Continuing through this frame")
(setq debugger-will-be-back t)
(exit-recursive-edit))
(defun debugger-reenable ()
@ -467,7 +484,7 @@ Applies to the frame whose line point is on in the backtrace."
(beginning-of-line)
(backtrace-debug (debugger-frame-number) t)
(if (= (following-char) ? )
(let ((buffer-read-only nil))
(let ((inhibit-read-only t))
(delete-char 1)
(insert ?*)))
(beginning-of-line))
@ -483,7 +500,7 @@ Applies to the frame whose line point is on in the backtrace."
(beginning-of-line)
(backtrace-debug (debugger-frame-number) nil)
(if (= (following-char) ?*)
(let ((buffer-read-only nil))
(let ((inhibit-read-only t))
(delete-char 1)
(insert ? )))
(beginning-of-line))