Personal emacs config
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

349 lines
12 KiB

;;; Breakpoint buffer
;; Author: Rocky Bernstein <rocky@gnu.org>
;; Copyright (C) 2019 Free Software Foundation, Inc
;; This program 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 program 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/>.
(require 'ansi-color)
(require 'ring)
(require 'seq)
(require 'load-relative)
(eval-when-compile (require 'cl-lib))
(require-relative-list
'("../key" "helper" "../follow" "../loc") "realgud-")
(require-relative-list
'("command") "realgud-buffer-")
(declare-function realgud-breakpoint-mode 'realgud-breakpoint-mod)
(declare-function realgud-get-buffer-base-name 'realgud-buffer-backtrace)
(declare-function realgud-cmdbuf-debugger-name 'realgud-buffer-command)
(declare-function realgud-cmdbuf? 'realgud-buffer-command)
(declare-function realgud-cmdbuf-info-bkpt-buf= 'realgud-buffer-command)
(declare-function realgud-cmdbuf-info-divert-output?= 'realgud-buffer-command)
(declare-function realgud-cmdbuf-info-in-srcbuf?= 'realgud-buffer-command)
(declare-function realgud:cmd-breakpoint 'realgud-cmds)
(declare-function realgud:cmd-info-breakpoints 'realgud-cmds)
(declare-function realgud-cmdbuf-pat 'realgud-buffer-command)
(declare-function realgud-get-cmdbuf 'realgud-buffer-helper)
(declare-function realgud:file-loc-from-line 'realgud-file)
(declare-function realgud-loc-goto 'realgud-loc)
(declare-function buffer-killed? 'realgud-helper)
(declare-function realgud:loc-describe 'realgud-loc)
(cl-defstruct realgud-breakpoint-info
"debugger object/structure specific to a (top-level) program to be debugged."
(cmdbuf nil) ;; buffer of the associated debugger process
(cur-pos 0) ;; beakpoint we are at
breakpoint-ring ;; ring of marks in buffer of breakpoint numbers. The
;; text at that marker has additional properties about the
;; breakpoint
)
(declare-function realgud:cmd-frame 'realgud-buffer-command)
(declare-function realgud-get-cmdbuf(&optional opt-buffer))
(declare-function realgud-command 'realgud-send)
(make-variable-buffer-local (defvar realgud-breakpoint-info))
;: FIXME: not picked up from track. Why?
(defvar realgud-track-divert-string nil)
(defvar realgud-goto-entry-acc "")
(defun realgud:breakpoint-describe (&optional buffer)
(interactive "")
(unless buffer (setq buffer (current-buffer)))
(with-current-buffer buffer
(let ((breakpoints (realgud-breakpoint-info-breakpoint-ring realgud-breakpoint-info))
(brkpt)
(loc)
(i 0))
(switch-to-buffer (get-buffer-create "*Describe Breakpoints*"))
(while (and (< i (ring-length breakpoints)) (setq brkpt (ring-ref breakpoints i)))
(insert (format "*** %d\n" i))
(insert (format "%s\n" brkpt))
(when (markerp brkpt)
(with-current-buffer (marker-buffer brkpt)
(goto-char brkpt)
(setq loc (get-text-property (point) 'loc))
)
(when loc (realgud:loc-describe loc)))
(setq i (1+ i))
)
)
))
;; FIXME: create this in a new frame.
(defun realgud:breakpoint-init ()
(interactive)
(let ((buffer (current-buffer))
(cmdbuf (realgud-get-cmdbuf))
(process)
)
(with-current-buffer-safe cmdbuf
(let ((brkpt-pat (realgud-cmdbuf-pat "debugger-breakpoint"))
(brkpt-pos-ring)
(bp-list (realgud-cmdbuf-info-bp-list realgud-cmdbuf-info))
(sleep-count 0)
)
(unless brkpt-pat
(error "No 'debugger-breakpoint' regular expression recorded for debugger %s"
(realgud-cmdbuf-debugger-name)))
(setq process (get-buffer-process (current-buffer)))
(realgud-cmdbuf-info-in-srcbuf?= (not (realgud-cmdbuf? buffer)))
(realgud-cmdbuf-info-divert-output?= t)
(setq realgud-track-divert-string nil)
(realgud:cmd-info-breakpoints)
(while (and (eq 'run (process-status process))
(null realgud-track-divert-string)
(> 1000 (setq sleep-count (1+ sleep-count))))
(sleep-for 0.001)
)
(if (>= sleep-count 1000)
(message "Timeout on running debugger command")
;; else
;; (message "+++4 %s" realgud-track-divert-string)
(let ((brkpt-buffer (get-buffer-create
(format "*Breakpoint %s*"
(realgud-get-buffer-base-name
(buffer-name)))))
(divert-string realgud-track-divert-string)
)
(realgud-cmdbuf-info-brkpt-buf= brkpt-buffer)
(with-current-buffer brkpt-buffer
(setq buffer-read-only nil)
(delete-region (point-min) (point-max))
(if divert-string
(let* ((duple
(realgud:breakpoint-add-text-properties
brkpt-pat cmdbuf divert-string bp-list))
(string-with-props
(ansi-color-filter-apply (car duple)))
(brkpt-num-pos-list (cadr duple))
)
(insert string-with-props)
;; add marks for each position
(realgud-breakpoint-mode cmdbuf)
(setq brkpt-pos-ring
(make-ring (length brkpt-num-pos-list)))
(dolist (pos brkpt-num-pos-list)
(goto-char (1+ pos))
(ring-insert-at-beginning brkpt-pos-ring (point-marker))
)
)
)
;; realgud-breakpoint-mode kills all local variables so
;; we set this after. Alternatively change realgud-breakpoint-mode.
(set (make-local-variable 'realgud-breakpoint-info)
(make-realgud-breakpoint-info
:cmdbuf cmdbuf
:breakpoint-ring brkpt-pos-ring
))
)
)
)
)
)
(unless cmdbuf
(message "Unable to find debugger command buffer for %s" buffer))
)
)
(defun realgud-breakpoint? ( &optional buffer)
"Return true if BUFFER is a debugger command buffer."
(with-current-buffer-safe
(or buffer (current-buffer))
(realgud-breakpoint-info-set?)))
(defalias 'realgud-breakpoint-info? 'realgud-breakpoint-info-p)
(defun realgud-breakpoint-info-set? ()
"Return true if realgud-breakpoint-info is set."
(and (boundp 'realgud-breakpoint-info)
realgud-breakpoint-info
(realgud-breakpoint-info? realgud-breakpoint-info)))
(defun realgud-goto-entry-n ()
"Go to an entry number.
Breakpoints, Display expressions and Stack Frames all have
numbers associated with them which are distinct from line
numbers. In a secondary buffer, this function is usually bound to
a numeric key which will position you at that entry number. To
go to an entry above 9, just keep entering the number. For
example, if you press 1 and then 9, you should jump to entry
1 (if it exists) and then 19 (if that exists). Entering any
non-digit will start entry number from the beginning again."
(interactive)
(if (not (eq last-command 'realgud-goto-entry-n))
(setq realgud-goto-entry-acc ""))
(realgud-goto-entry-n-internal (this-command-keys)))
(defun realgud-goto-breakpoint ()
"Go to the breakpoint number. We get the breakpoint number from the
'brkpt-num property"
(interactive)
(if (realgud-breakpoint?)
(let ((loc (get-text-property (point) 'loc)))
(if loc
(realgud-loc-goto loc)
(message "No location property found at this point")
)
)
)
)
(defun realgud-goto-breakpoint-mouse (event)
(interactive "e")
(let* ((pos (posn-point (event-end event)))
(loc (get-text-property pos 'loc)))
(if (realgud-breakpoint?)
(if loc
(realgud-loc-goto loc)
(message "No location property found at this point")
)
)
)
)
(defun realgud-goto-breakpoint-n ()
"Goto breakpoint number indicated by the accumulated numeric keys just entered.
This function is usually bound to a numeric key in a 'frame'
secondary buffer. To go to an entry above 9, just keep entering
the number. For example, if you press 1 and then 9, frame 1 is selected
\(if it exists) and then frame 19 (if that exists). Entering any
non-digit will start entry number from the beginning again."
(interactive)
(if (not (eq last-command 'realgud-goto-breakpoint-n))
(setq realgud-goto-entry-acc ""))
(realgud-goto-breakpoint-n-internal (this-command-keys)))
(defun realgud-goto-breakpoint-n-internal (keys)
(if (and (stringp keys)
(= (length keys) 1))
(progn
(setq realgud-goto-entry-acc (concat realgud-goto-entry-acc keys))
;; Try to find the longest suffix.
(let ((acc realgud-goto-entry-acc))
(while (not (string= acc ""))
(if (not (realgud-goto-entry-try acc))
(setq acc (substring acc 1))
(realgud:cmd-frame (string-to-number acc))
;; Break loop.
(setq acc "")))))
(message "`realgud-goto-breakpoint-n' must be bound to a number key")))
(defun realgud:breakpoint-add-text-properties(brkpt-pat cmdbuf string bp-list)
"Parse STRING or the current buffer and add frame properties: breakpoint number,
filename, and line number as text properties."
(let* ((stripped-string (ansi-color-filter-apply string))
(brkpt-regexp (realgud-loc-pat-regexp brkpt-pat))
(brkpt-group-pat (realgud-loc-pat-num brkpt-pat))
(file-group-pat (realgud-loc-pat-file-group brkpt-pat))
(line-group-pat (realgud-loc-pat-line-group brkpt-pat))
(alt-brkpt-num -1)
(last-pos 0)
(selected-brkpt-num nil)
(brkpt-num-pos-list '())
)
(while (string-match brkpt-regexp stripped-string last-pos)
(let ((brkpt-num-str) (brkpt-num) (line-num) (filename)
(loc)
;; From https://github.com/realgud/realgud/pull/192
;; Each brkpt of breakpoint is searched via string-match
;; invocation and a position of the current brkpt is
;; updated via (setq last-pos (match-end 0)) in the end of
;; the loop. But somewhere in the body of the loop (I do
;; not know exactly where), there is another call to
;; string-match and it messes up all positions.
(whole-match-begin (match-beginning 0))
(whole-match-end (match-end 0))
(brkpt-num-pos)
)
(if brkpt-group-pat
(progn
(setq brkpt-num-str
(substring stripped-string
(match-beginning brkpt-group-pat)
(match-end brkpt-group-pat)))
(setq brkpt-num (string-to-number brkpt-num-str))
(setq loc (seq-find (lambda (elt) (equal brkpt-num (realgud-loc-num elt))) bp-list))
(setq brkpt-num-pos (match-beginning brkpt-group-pat))
(cl-pushnew brkpt-num-pos brkpt-num-pos-list)
(when loc
(add-text-properties (match-beginning brkpt-group-pat)
(match-end brkpt-group-pat)
(list 'mouse-face 'highlight
'help-echo "mouse-2: goto this brkpt"
'mark (realgud-loc-marker loc))
string))
)
; else
(progn
(setq brkpt-num-str
(substring stripped-string (match-beginning 0)
(match-end 0)))
(setq brkpt-num (cl-incf alt-brkpt-num))
(setq brkpt-num-pos (match-beginning 0))
(cl-pushnew brkpt-num-pos brkpt-num-pos-list)
(add-text-properties (match-beginning 0) (match-end 0)
(list 'mouse-face 'highlight
'help-echo "mouse-2: goto this brkpt"
'brkpt brkpt-num)
string)
)
)
(when file-group-pat
(setq filename (substring stripped-string
(match-beginning file-group-pat)
(match-end file-group-pat)))
(add-text-properties (match-beginning file-group-pat)
(match-end file-group-pat)
(list 'mouse-face 'highlight
'help-echo "mouse-2: goto this file"
'action 'realgud:follow-event
'file filename)
string)
)
(when line-group-pat
(let ((line-num-str (substring stripped-string
(match-beginning line-group-pat)
(match-end line-group-pat))))
(setq line-num (string-to-number (or line-num-str "1")))
))
(when (and (stringp filename) (numberp line-num))
(let ((loc (realgud:file-loc-from-line filename line-num cmdbuf)))
(put-text-property whole-match-begin whole-match-end
'mark loc string)
))
(put-text-property whole-match-begin whole-match-end
'brkpt-num brkpt-num string)
(setq last-pos whole-match-end)
))
(list string (nreverse brkpt-num-pos-list))
)
)
(provide-me "realgud-buffer-")