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4552 lines
155 KiB
EmacsLisp
4552 lines
155 KiB
EmacsLisp
;;; edebug.el --- a source-level debugger for Emacs Lispl
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;; Copyright (C) 1988,'89,'90,'91,'92,'93,'94 Free Software Foundation, Inc
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;; Author: Daniel LaLiberte <liberte@cs.uiuc.edu>
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;; Keywords: lisp, tools, maint
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;; LCD Archive Entry:
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;; edebug|Daniel LaLiberte|liberte@cs.uiuc.edu
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;; |A source level debugger for Emacs Lisp.
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;; |$Date: 1994/03/23 20:30:36 $|$Revision: 3.4 $|~/modes/edebug.el|
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;; Emacs maintainers: Please inform me of any changes to this code.
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;; Better yet, ask me first.
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs 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
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;;; Commentary:
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;;; This minor mode allows programmers to step through Emacs Lisp
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;;; source code while executing functions. You can also set
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;;; breakpoints, trace (stopping at each expression), evaluate
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;;; expressions as if outside Edebug, reevaluate and display a list of
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;;; expressions, trap errors normally caught by debug, and display a
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;;; debug style backtrace.
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;;;; Installation
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;;; =============
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;;; Put edebug.el in some directory in your load-path and
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;;; byte-compile it. Also read the beginning of edebug-epoch.el,
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;;; cl-specs.el, and edebug-cl-read.el if they apply to you.
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;;; Unless you are using Emacs 19 which is already set up to use Edebug,
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;;; put the following forms in your .emacs file.
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;;; (define-key emacs-lisp-mode-map "\C-xx" 'edebug-eval-top-level-form)
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;;; (autoload 'edebug-eval-top-level-form "edebug")
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;;; If you wish to change the default edebug global command prefix, change:
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;;; (setq edebug-global-prefix "\C-xX")
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;;; Other options, are described in the manual.
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;;; In previous versions of Edebug, users were directed to set
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;;; `debugger' to `edebug-debug'. This is no longer necessary
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;;; since Edebug automatically sets it whenever Edebug is active.
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;;;; Minimal Instructions
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;;; =====================
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;;; First evaluate a defun with C-xx, then run the function. Step
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;;; through the code with SPC, mark breakpoints with b, go until a
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;;; breakpoint is reached with g, and quit execution with q. Use the
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;;; "?" command in edebug to describe other commands. See edebug.tex
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;;; or the Emacs 19 Lisp Reference Manual for more instructions.
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;;; Send me your enhancements, ideas, bugs, or fixes.
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;;; For bugs, you can call edebug-submit-bug-report if you have reporter.el.
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;;; There is an edebug mailing list if you want to keep up
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;;; with the latest developments. Requests to: edebug-request@cs.uiuc.edu
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;;; Daniel LaLiberte 217-398-4114
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;;; University of Illinois, Urbana-Champaign
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;;; Department of Computer Science
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;;; 1304 W Springfield
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;;; Urbana, IL 61801
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;;; uiucdcs!liberte
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;;; liberte@cs.uiuc.edu
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;;; ===============================
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;;; $Header: /import/kaplan/kaplan/liberte/Edebug/RCS/edebug.el,v 3.4 1994/03/23 20:30:36 liberte Exp liberte $
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;;;
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;;; $Log: edebug.el,v $
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;;; Revision 3.4 1994/03/23 20:30:36 liberte
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;;; * Fixed trapping of handled signals.
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;;; * Stop incrementing max-lisp-eval-depth and max-specpdl-size so much.
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;;; * Change "i" command to really step in; new "I" command only instruments.
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;;; Neither jumps back to current stop point anymore.
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;;; * Added experimental edebug-on-entry and cancel-edebug-on-entry.
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;;; * Always require easymenu, so it byte-compiles correctly.
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;;; * Use elisp-eval-region package, which is also used by cl-read.
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;;; * Simplified edebug-cl-read at the expense of complexifying cl-read.
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;;; * Fix circular load problems with cl-specs and cl-read.
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;;;
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;;; Revision 3.3 1994/02/21 21:35:11 liberte
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;;; * Byte compiles with fewer warnings.
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;;; * Removed support for dotted lists in backquote - it's too expensive.
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;;; * Added edebug-` for debugging backquoted code.
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;;; * Renamed "fence" to "gate" because it inhibits backtracking.
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;;; * Common menus for Emacs 19 and lemacs using easymenus.
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;;; * Support Emacs 19 read-expression-history.
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;;; * Support debugging of lexical bindings from cl.el, version 2.03.
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;;; * Generalize tracing and add macro: edebug-tracing.
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;;; * Correct live window checking.
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;;; * Each definition remembers which window it was last debugged in.
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;;; * Individual windows may be saved and restored.
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;;; * Save and restore Emacs 19 events and mouse tracking.
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;;; * Handled signals may be trapped by Edebug. But disabled for now.
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;;;
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;;; Revision 3.2 1993/09/21 21:06:30 liberte
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;;; * Don't define keywordp if already defined (by cl.el).
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;;; * Clean up docs of edebug versions of eval-defun, eval-region, etc.
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;;; * Add :name spec for specifying additional name components.
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;;; * Replace "Not enough arguments" by what was expected.
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;;; * Replace "Too many arguments" for a list spec to say what was expected.
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;;; * Support &define again in middle of specs, (e.g. cl lambda expressions)
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;;; * Fix "vector" specs to not be order dependent.
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;;; * Simplify and correct spec of def-edebug-spec.
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;;; * Require at least one arg after &optional in lambda-list.
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;;; * Added edebug-cl-read.el to support cl read syntax, using cl-read.el.
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;;; * Allow forms to start with \# and \` as well as \(, for cl-read.
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;;; * Support #' for function quoting, used by lemacs.
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;;; * Make GUD bindings for all emacs-lisp-mode buffers.
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;;;
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;;; Revision 3.1 1993/08/04 16:25:05 liberte
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;;; * For compatability with older version of Edebug, I added
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;;; edebug-all-defuns and def-edebug-form-spec. Dont use them.
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;;; * Fixed bad argument in def-edebug-spec.
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;;; * Only use edebug-print-* options if non-nil.
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;;; * Fixed edebug-display-freq-count.
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;;;
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;;; Revision 3.0 1993/07/17 22:15:39 liberte
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;;; * Added edebug-setup-hook called when edebug is used.
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;;; * Added predicates: keywordp and lambda-list-keywordp.
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;;; * Changed the name of custom-print.el to cust-print.el,
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;;; but Lisp variables and functions still use "custom-".
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;;; * Changed names of replacement eval functions (eval-region, etc) to
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;;; add "edebug-" prefix. Then replace the standard functions
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;;; in edebug-install-eval-functions called at end of file.
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;;; * In edebug-eval-region, bind standard-output only while printing.
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;;; * Change def-edebug-form to def-edebug-spec.
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;;; * Replace the parser to first read the form with positions using
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;;; edebug-read, then parse its structure.
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;;; * Parsing uses generalized "edebug-match-" functions for matching specs.
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;;; * Generalize handling of keyword specs (e.g. &something) to implicitly
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;;; bracket all following specs.
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;;; * Added new specs: arg, lambda-expr, place, gate, &key, and nil.
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;;; * Changed arglist to lambda-list.
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;;; * def-form macro does not assume arguments defined.
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;;; * Added support for dotted forms (with dotted spec lists and nil),
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;;; vectors, and the new backquote that supports nested backquotes.
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;;; * Added utilities edebug-unwrap and edebug-unwrap*
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;;; * Support emacs 19 "lambda" macros.
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;;; * Moved cl.el support to cl-specs.el. Many fixes, thanks to Dave Gillespie.
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;;; * Added specs for advice.el by Hans Chalupsky (hans@cs.buffalo.edu).
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;;; * Changed edebug-step-through-mode to edebug-step-mode.
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;;; * Make setting of the initial execution mode outside of edebug change
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;;; the mode once, rather than using edebug-initial-mode.
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;;; * Fix tracing so breakpoints stop.
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;;; * Check while edebugging whether source was changed.
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;;; * Fix edebug-step-in.
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;;; * Added: edebug-print-length, edebug-print-level, edebug-print-circle.
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;;; * Do all edebug evaluations safely (in condition-case) and
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;;; if custom-print is being used, print safely.
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;;; * Add bindings compatible with GUD standard.
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;;;
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;;; For the rest of the revision history, see edebug-history.
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(defconst edebug-version
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(let ((raw-version "$Revision: 3.4 $"))
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(substring raw-version (string-match "[0-9.]*" raw-version 11)
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(match-end 0))))
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(require 'backquote)
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;; Emacs 18 doesnt have defalias.
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(eval-and-compile
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(or (fboundp 'defalias) (fset 'defalias 'fset)))
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;;;; Bug reporting
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;;; ==============
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(defconst edebug-maintainer-address "liberte@cs.uiuc.edu")
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(defun edebug-submit-bug-report ()
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"Submit, via mail, a bug report on edebug."
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(interactive)
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(require 'reporter)
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(and (y-or-n-p "Do you really want to submit a report on edebug? ")
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(reporter-submit-bug-report
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edebug-maintainer-address
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(concat "edebug.el " edebug-version)
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(list 'edebug-setup-hook
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'edebug-all-defs
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'edebug-all-forms
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'edebug-eval-macro-args
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'edebug-stop-before-symbols
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'edebug-save-windows
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'edebug-save-displayed-buffer-points
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'edebug-initial-mode
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'edebug-trace
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'edebug-test-coverage
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'edebug-continue-kbd-macro
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'edebug-print-length
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'edebug-print-level
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'edebug-print-circle
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))))
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;;;; Options
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;;; ===============================
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(defvar edebug-setup-hook nil
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"*Functions to call before edebug is used.
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Its value is reset to nil after being used, so each time it is set
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to a new function, that function will be called once and only once.")
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(defvar edebug-all-defs nil
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"*If non-nil, evaluation of any defining forms will use Edebug.
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`eval-defun' without prefix arg and `eval-region' will use
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`edebug-eval-top-level-form'.
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If nil, `eval-region' evaluates normally, but `eval-defun' with prefix arg
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uses `edebug-eval-top-level-form'. `eval-region' is called by `eval-defun',
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`eval-last-sexp', and `eval-print-last-sexp'.
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You can use the command `edebug-all-defs' to toggle the value of this
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variable. You may wish to make this variable local to each
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buffer with (make-local-variable 'edebug-all-defs) in your
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`emacs-lisp-mode-hook'.")
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(defvar edebug-all-forms nil
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"*Non-nil means edebug the evaluation of all forms.
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This doesn't apply to loading or evaluations in the minibuffer.
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Use the command edebug-all-forms to toggle the value of this option.")
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(defvar edebug-eval-macro-args nil
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"*Non-nil means all macro call arguments may be evaluated.
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If this variable is nil, the default, edebug will *not* wrap
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macro call arguments as if they will be evaluated.
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For each macro, a edebug-form-spec overrides this option.
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So to specify exceptions for macros that have some arguments evaluated
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and some not, you should specify an edebug-form-spec.
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This option is going away soon.")
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(defvar edebug-stop-before-symbols nil
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"*Non-nil causes edebug to stop before symbols as well as after.
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In any case, it is possible to stop before a symbol with a breakpoint or
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interrupt.")
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(defvar edebug-save-windows t
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"*If non-nil, save and restore window configuration on edebug calls.
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It takes some time to save and restore, so if your program does not care
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what happens to the window configurations, it is better to set this
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variable to nil.
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If the value is a list, only the listed windows are saved and
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restored.
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`edebug-toggle-save-windows' may be used to change this variable.")
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(defvar edebug-save-displayed-buffer-points nil
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"*If non-nil, save and restore the points of all displayed buffers.
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Saving and restoring buffer points is necessary if you are debugging
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code that changes the point of a buffer which is displayed in a
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non-selected window. If edebug or the user then selects the
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window, the buffer's point will be changed to the window's point.
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But this is an expensive operation since it visits each
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window and therefore each displayed buffer twice for each edebug call,
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so it is best to avoid it if you can.")
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(defvar edebug-initial-mode 'step
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"*Initial execution mode for Edebug, if non-nil.
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This is used when edebug is first entered for each recursive-edit
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level. Possible values are nil (which means leave
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edebug-execution-mode as is), step, (the default), next, go,
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Go-nonstop, trace, Trace-fast, continue, and Continue-fast.")
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(defvar edebug-trace nil
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"*Non-nil if edebug should show a trace of function entry and exit.
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Tracing output is displayed in a buffer named by the variable
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edebug-trace-buffer, one function entry or exit per line, indented by
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the stack depth. You can customize by replacing functions
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edebug-print-trace-before and edebug-print-trace-after.")
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(defvar edebug-test-coverage nil
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"*If non-nil, Edebug tests coverage of all expressions debugged.
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This is done by comparing the result of each expression
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with the previous result. Coverage is considered OK if two different
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results are found. So to sufficiently test the coverage of your code,
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try to execute it under conditions that evaluate all expressions more
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than once, and produce different results for each expression.
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Use `edebug-display-freq-count' to display the frequency count and
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coverage information for a definition.")
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(defvar edebug-continue-kbd-macro nil
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"*If non-nil, continue executing any keyboard macro that is
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executing outside. Use this with caution since it is not debugged.")
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(defvar edebug-global-break-condition nil
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"*If non-nil, an expression to test for at every stop point.
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If the result is non-nil, then break. Errors are ignored.")
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(defvar edebug-print-length 50
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"*Default value of print-length to use while printing results in edebug.")
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(defvar edebug-print-level 50
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"*Default value of print-level to use while printing results in edebug.")
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(defvar edebug-print-circle t
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"*Default value of print-circle to use while printing results in edebug.")
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(defvar edebug-unwrap-results nil
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"*Non-nil if Edebug should unwrap results of expressions.
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This is useful when debugging macros where the results of expressions
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are instrumented expressions. But don't do this when results might be
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circular or an infinite loop will result.")
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(defvar edebug-on-error t
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"*Value bound to `debug-on-error' while Edebug is active.
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If `debug-on-error' is non-nil, that value is still used.
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If the value is a list of signal names, Edebug will stop when any of
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these errors are signaled from Lisp code whether or not the signal is
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handled by a `condition-case'. This option is useful for debugging
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signals that *are* handled since they would otherwise be missed.
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After execution is resumed, the error is signaled again.")
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(defvar edebug-on-quit t
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"*Value bound to `debug-on-quit' while Edebug is active.")
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;;;; Form spec utilities.
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;;; ===============================
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;;;###autoload
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(defmacro def-edebug-spec (symbol spec)
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"Set the edebug-form-spec property of SYMBOL according to SPEC.
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Both SYMBOL and SPEC are unevaluated. The SPEC can be 0, t, a symbol
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(naming a function), or a list."
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(` (put (quote (, symbol)) 'edebug-form-spec (quote (, spec)))))
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(defmacro def-edebug-form-spec (symbol spec-form)
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"For compatibility with old version. Use def-edebug-spec instead."
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(message "Obsolete: use def-edebug-spec instead.")
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(def-edebug-spec symbol (eval spec-form)))
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(defun get-edebug-spec (symbol)
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;; Get the spec of symbol resolving all indirection.
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(let ((edebug-form-spec (get symbol 'edebug-form-spec))
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indirect)
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(while (and (symbolp edebug-form-spec)
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(setq indirect (get edebug-form-spec 'edebug-form-spec)))
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;; (edebug-trace "indirection: %s" edebug-form-spec)
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(setq edebug-form-spec indirect))
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edebug-form-spec
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))
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;;;; Utilities
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;;; ===============================
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(if (not (fboundp 'gensym))
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(progn
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;; Define gensym - from old cl.el
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(defvar *gensym-index* 0
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"Integer used by gensym to produce new names.")
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(defun gensym (&optional prefix)
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"Generate a fresh uninterned symbol.
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There is an optional argument, PREFIX. PREFIX is the
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string that begins the new name. Most people take just the default,
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except when debugging needs suggest otherwise."
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(if (null prefix)
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(setq prefix "G"))
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(let ((newsymbol nil)
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(newname ""))
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(while (not newsymbol)
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(setq newname (concat prefix *gensym-index*))
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(setq *gensym-index* (+ *gensym-index* 1))
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(if (not (intern-soft newname))
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(setq newsymbol (make-symbol newname))))
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newsymbol))
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))
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(if (not (fboundp 'keywordp))
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(defun keywordp (object)
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"Return t if OBJECT is a keyword.
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A keyword is a symbol that starts with "":""."
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(and (symbolp object)
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(= ?: (aref (symbol-name object) 0)))))
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(defun lambda-list-keywordp (object)
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"Return t if OBJECT is a lambda list keyword.
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A lambda list keyword is a symbol that starts with ""&""."
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(and (symbolp object)
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(= ?& (aref (symbol-name object) 0))))
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(defun edebug-last-sexp ()
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;; Return the last sexp before point in current buffer.
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||
Assumes elisp syntax is active.
|
||
(car
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(read-from-string
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(buffer-substring
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||
(save-excursion
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(forward-sexp -1)
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(point))
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(point)))))
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(defun edebug-window-list ()
|
||
"Return a list of windows, in order of next-window."
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||
;; This doesnt work for epoch.
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||
(let* ((first-window (selected-window))
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||
(window-list (list first-window))
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||
(next (next-window first-window)))
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||
(while (not (eq next first-window))
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(setq window-list (cons next window-list))
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||
(setq next (next-window next)))
|
||
(nreverse window-list)))
|
||
|
||
(defun edebug-window-live-p (window)
|
||
"Return non-nil if WINDOW is visible."
|
||
(let* ((first-window (selected-window))
|
||
(next (next-window first-window t)))
|
||
(while (not (or (eq next window)
|
||
(eq next first-window)))
|
||
(setq next (next-window next t)))
|
||
(eq next window)))
|
||
|
||
;; Not used.
|
||
'(defun edebug-two-window-p ()
|
||
"Return t if there are two windows."
|
||
(and (not (one-window-p))
|
||
(eq (selected-window)
|
||
(next-window (next-window (selected-window))))))
|
||
|
||
(defsubst edebug-lookup-function (object)
|
||
(while (and (symbolp object) (fboundp object))
|
||
(setq object (symbol-function object)))
|
||
object)
|
||
|
||
(defun edebug-macrop (object)
|
||
"Return the macro named by OBJECT, or nil if it is not a macro."
|
||
(setq object (edebug-lookup-function object))
|
||
(if (and (listp object)
|
||
(eq 'macro (car object))
|
||
(edebug-functionp (cdr object)))
|
||
object))
|
||
|
||
(defun edebug-functionp (object)
|
||
"Returns the function named by OBJECT, or nil if it is not a function."
|
||
(setq object (edebug-lookup-function object))
|
||
(if (or (subrp object)
|
||
(and (listp object)
|
||
(eq (car object) 'lambda)
|
||
(listp (car (cdr object)))))
|
||
object))
|
||
|
||
(defun edebug-sort-alist (alist function)
|
||
;; Return the ALIST sorted with comparison function FUNCTION.
|
||
;; This uses 'sort so the sorting is destructive.
|
||
(sort alist (function
|
||
(lambda (e1 e2)
|
||
(funcall function (car e1) (car e2))))))
|
||
|
||
;;(def-edebug-spec edebug-save-restriction t)
|
||
|
||
;; Not used. If it is used, def-edebug-spec must be defined before use.
|
||
'(defmacro edebug-save-restriction (&rest body)
|
||
"Evaluate BODY while saving the current buffers restriction.
|
||
BODY may change buffer outside of current restriction, unlike
|
||
save-restriction. BODY may change the current buffer,
|
||
and the restriction will be restored to the original buffer,
|
||
and the current buffer remains current.
|
||
Return the result of the last expression in BODY."
|
||
(` (let ((edebug:s-r-beg (point-min-marker))
|
||
(edebug:s-r-end (point-max-marker)))
|
||
(unwind-protect
|
||
(progn (,@ body))
|
||
(save-excursion
|
||
(set-buffer (marker-buffer edebug:s-r-beg))
|
||
(narrow-to-region edebug:s-r-beg edebug:s-r-end))))))
|
||
|
||
;;;; Display
|
||
;;; ============
|
||
|
||
(defconst edebug-trace-buffer "*edebug-trace*"
|
||
"Name of the buffer to put trace info in.")
|
||
|
||
(defun edebug-pop-to-buffer (buffer &optional window)
|
||
;; Like pop-to-buffer, but select window where BUFFER was last shown.
|
||
;; Select WINDOW if it provided and it still exists. Otherwise,
|
||
;; if buffer is currently shown in several windows, choose one.
|
||
;; Otherwise, find a new window, possibly splitting one.
|
||
(setq window (if (and (windowp window) (edebug-window-live-p window)
|
||
(eq (window-buffer window) buffer))
|
||
window
|
||
(if (eq (window-buffer (selected-window)) buffer)
|
||
(selected-window)
|
||
(edebug-get-buffer-window buffer))))
|
||
(if window
|
||
(select-window window)
|
||
(if (one-window-p)
|
||
(split-window))
|
||
;; (message "next window: %s" (next-window)) (sit-for 1)
|
||
(if (eq (get-buffer-window edebug-trace-buffer) (next-window))
|
||
;; Dont select trace window
|
||
nil
|
||
(select-window (next-window))))
|
||
(set-window-buffer (selected-window) buffer)
|
||
(set-window-hscroll (selected-window) 0);; should this be??
|
||
;; Selecting the window does not set the buffer until command loop.
|
||
;;(set-buffer buffer)
|
||
)
|
||
|
||
|
||
(defun edebug-get-displayed-buffer-points ()
|
||
;; Return a list of buffer point pairs, for all displayed buffers.
|
||
(save-excursion
|
||
(let* ((first-window (selected-window))
|
||
(next (next-window first-window))
|
||
(buffer-point-list nil)
|
||
buffer)
|
||
(while (not (eq next first-window))
|
||
(set-buffer (setq buffer (window-buffer next)))
|
||
(setq buffer-point-list
|
||
(cons (cons buffer (point)) buffer-point-list))
|
||
(setq next (next-window next)))
|
||
buffer-point-list)))
|
||
|
||
|
||
(defun edebug-set-buffer-points (buffer-points)
|
||
;; Restore the buffer-points created by edebug-get-displayed-buffer-points.
|
||
(let ((current-buffer (current-buffer)))
|
||
(mapcar (function (lambda (buf-point)
|
||
(if (buffer-name (car buf-point)) ; still exists
|
||
(progn
|
||
(set-buffer (car buf-point))
|
||
(goto-char (cdr buf-point))))))
|
||
buffer-points)
|
||
(set-buffer current-buffer)))
|
||
|
||
(defun edebug-current-windows (which-windows)
|
||
;; Get either a full window configuration or some window information.
|
||
(if (listp which-windows)
|
||
(mapcar (function (lambda (window)
|
||
(if (edebug-window-live-p window)
|
||
(list window
|
||
(window-buffer window)
|
||
(window-point window)
|
||
(window-start window)
|
||
(window-hscroll window)))))
|
||
which-windows)
|
||
(current-window-configuration)))
|
||
|
||
(defun edebug-set-windows (window-info)
|
||
;; Set either a full window configuration or some window information.
|
||
(if (listp window-info)
|
||
(mapcar (function
|
||
(lambda (one-window-info)
|
||
(if one-window-info
|
||
(apply (function
|
||
(lambda (window buffer point start hscroll)
|
||
(if (edebug-window-live-p window)
|
||
(progn
|
||
(set-window-buffer window buffer)
|
||
(set-window-point window point)
|
||
(set-window-start window start)
|
||
(set-window-hscroll window hscroll)))))
|
||
one-window-info))))
|
||
window-info)
|
||
(set-window-configuration window-info)))
|
||
|
||
(defalias 'edebug-get-buffer-window 'get-buffer-window)
|
||
(defalias 'edebug-sit-for 'sit-for)
|
||
(defalias 'edebug-input-pending-p 'input-pending-p)
|
||
|
||
|
||
;;;; Redefine read and eval functions
|
||
;;; =================================
|
||
;;; read is redefined to maybe instrument forms.
|
||
;;; eval-defun is redefined to check edebug-all-forms and edebug-all-defs.
|
||
|
||
;;; Use the Lisp version of eval-region.
|
||
(require 'elisp-eval-region "eval-region")
|
||
|
||
;; Save the original read function
|
||
(or (fboundp 'edebug-original-read)
|
||
(defalias 'edebug-original-read (symbol-function 'read)))
|
||
|
||
(defun edebug-read (stream)
|
||
"Read a Lisp expression as text from STREAM, return as Lisp object.
|
||
For this version, from Edebug, STREAM must be nil, which means use the
|
||
current buffer. This version maybe instruments the expression after
|
||
reading it, depending on the values of `edebug-all-defs' and
|
||
`edebug-all-forms'."
|
||
(if (or (null stream) (eq stream (current-buffer)))
|
||
(edebug-read-and-maybe-wrap-form)
|
||
(edebug-original-read stream)))
|
||
|
||
|
||
(defmacro with-edebug-read (&rest body)
|
||
;; Temporarily set the read routine to edebug-read.
|
||
(` (unwind-protect
|
||
(progn
|
||
(fset 'read 'edebug-read)
|
||
(,@ body))
|
||
(fset 'read 'edebug-original-read))))
|
||
|
||
|
||
(or (fboundp 'edebug-original-eval-defun)
|
||
(defalias 'edebug-original-eval-defun (symbol-function 'eval-defun)))
|
||
|
||
(defun edebug-eval-defun (edebug-it)
|
||
"Evaluate the top-level form containing point, or after point.
|
||
|
||
This version, from Edebug, has the following differences: With a
|
||
prefix argument instrument the code for Edebug. If edebug-all-defs is
|
||
non-nil, then the code is instrumented *unless* there is a prefix
|
||
argument. If instrumenting, it prints: \"Edebug: <function name>\".
|
||
Otherwise, it prints in the minibuffer."
|
||
(interactive "P")
|
||
(let ((edebugging (not (eq (not edebug-it) (not edebug-all-defs))))
|
||
(edebug-result))
|
||
(setq edebug-result
|
||
(eval
|
||
(let ((edebug-all-forms edebugging)
|
||
(edebug-all-defs (and edebug-all-defs (not edebug-it))))
|
||
(edebug-read-top-level-form))))
|
||
(if (not edebugging)
|
||
(princ edebug-result)
|
||
edebug-result)))
|
||
|
||
|
||
;;;###autoload
|
||
(defalias 'edebug-defun 'edebug-eval-top-level-form)
|
||
|
||
;;;###autoload
|
||
(defun edebug-eval-top-level-form ()
|
||
"Evaluate a top level form, such as a defun or defmacro.
|
||
This is like `eval-defun', but the code is always instrumented for Edebug.
|
||
Print its name in the minibuffer and leave point where it is,
|
||
or if an error occurs, leave point after it with mark at the original
|
||
point."
|
||
(interactive)
|
||
(eval
|
||
;; Bind edebug-all-forms only while reading, not while evaling
|
||
;; but this causes problems while edebugging edebug.
|
||
(let ((edebug-all-forms t))
|
||
(edebug-read-top-level-form))))
|
||
|
||
|
||
(defun edebug-read-top-level-form ()
|
||
(let ((starting-point (point)))
|
||
(end-of-defun)
|
||
(beginning-of-defun)
|
||
(prog1
|
||
(edebug-read-and-maybe-wrap-form)
|
||
;; Recover point, but only if no error occurred.
|
||
(goto-char starting-point))))
|
||
|
||
|
||
;; Compatibility with old versions.
|
||
(defalias 'edebug-all-defuns 'edebug-all-defs)
|
||
|
||
(defun edebug-all-defs ()
|
||
"Toggle edebugging of all definitions."
|
||
(interactive)
|
||
(setq edebug-all-defs (not edebug-all-defs))
|
||
(message "Edebugging all definitions is %s."
|
||
(if edebug-all-defs "on" "off")))
|
||
|
||
|
||
(defun edebug-all-forms ()
|
||
"Toggle edebugging of all forms."
|
||
(interactive)
|
||
(setq edebug-all-forms (not edebug-all-forms))
|
||
(message "Edebugging all forms is %s."
|
||
(if edebug-all-forms "on" "off")))
|
||
|
||
|
||
;; These two should always be used in pairs, or just install once and
|
||
;; never uninstall.
|
||
(defun edebug-install-read-eval-functions ()
|
||
(interactive)
|
||
(install-elisp-eval-region)
|
||
(defalias 'read 'edebug-read)
|
||
(defalias 'eval-defun 'edebug-eval-defun))
|
||
|
||
(defun edebug-uninstall-read-eval-functions ()
|
||
(interactive)
|
||
(uninstall-elisp-eval-region)
|
||
(defalias 'read 'edebug-original-read)
|
||
(defalias 'eval-defun (symbol-function 'edebug-emacs-eval-defun)))
|
||
|
||
|
||
;;;; Edebug internal data
|
||
;;; ===============================
|
||
|
||
;;; The internal data that is needed for edebugging is kept in the
|
||
;;; buffer-local variable `edebug-form-data'.
|
||
|
||
(make-variable-buffer-local 'edebug-form-data)
|
||
|
||
(defconst edebug-form-data nil)
|
||
;; A list of entries associating symbols with buffer regions.
|
||
;; This is an automatic buffer local variable. Each entry looks like:
|
||
;; @code{(@var{symbol} @var{begin-marker} @var{end-marker}). The markers
|
||
;; are at the beginning and end of an entry level form and @var{symbol} is
|
||
;; a symbol that holds all edebug related information for the form on its
|
||
;; property list.
|
||
|
||
;; In the future, the symbol will be irrelevant and edebug data will
|
||
;; be stored in the definitions themselves rather than in the property
|
||
;; list of a symbol.
|
||
|
||
(defun edebug-make-form-data-entry (symbol begin end)
|
||
(list symbol begin end))
|
||
|
||
(defsubst edebug-form-data-name (entry)
|
||
(car entry))
|
||
|
||
(defsubst edebug-form-data-begin (entry)
|
||
(nth 1 entry))
|
||
|
||
(defsubst edebug-form-data-end (entry)
|
||
(nth 2 entry))
|
||
|
||
(defsubst edebug-set-form-data-entry (entry name begin end)
|
||
(setcar entry name);; in case name is changed
|
||
(set-marker (nth 1 entry) begin)
|
||
(set-marker (nth 2 entry) end))
|
||
|
||
(defun edebug-get-form-data-entry (pnt &optional end-point)
|
||
;; Find the edebug form data entry which is closest to PNT.
|
||
;; If END-POINT is supplied, match must be exact.
|
||
;; Return `nil' if none found.
|
||
(let ((rest edebug-form-data)
|
||
closest-entry
|
||
(closest-dist 999999)) ;; need maxint here
|
||
(while (and rest (< 0 closest-dist))
|
||
(let* ((entry (car rest))
|
||
(begin (edebug-form-data-begin entry))
|
||
(dist (- pnt begin)))
|
||
(setq rest (cdr rest))
|
||
(if (and (<= 0 dist)
|
||
(< dist closest-dist)
|
||
(or (not end-point)
|
||
(= end-point (edebug-form-data-end entry)))
|
||
(<= pnt (edebug-form-data-end entry)))
|
||
(setq closest-dist dist
|
||
closest-entry entry))))
|
||
closest-entry))
|
||
|
||
;; Also need to find all contained entries,
|
||
;; and find an entry given a symbol, which should be just assq.
|
||
|
||
(defun edebug-form-data-symbol ()
|
||
;; Return the edebug data symbol of the form where point is in.
|
||
;; If point is not inside a edebuggable form, cause error.
|
||
(or (edebug-form-data-name (edebug-get-form-data-entry (point)))
|
||
(error "Not inside instrumented form")))
|
||
|
||
(defun edebug-make-top-form-data-entry (new-entry)
|
||
;; Make NEW-ENTRY the first element in the `edebug-form-data' list.
|
||
(edebug-clear-form-data-entry new-entry)
|
||
(setq edebug-form-data (cons new-entry edebug-form-data)))
|
||
|
||
(defun edebug-clear-form-data-entry (entry)
|
||
;; If non-nil, clear ENTRY out of the form data.
|
||
;; Maybe clear the markers and delete the symbol's edebug property?
|
||
(if entry
|
||
(progn
|
||
;; Instead of this, we could just find all contained forms.
|
||
;; (put (car entry) 'edebug nil) ;
|
||
;; (mapcar 'edebug-clear-form-data-entry ; dangerous
|
||
;; (get (car entry) 'edebug-dependents))
|
||
;; (set-marker (nth 1 entry) nil)
|
||
;; (set-marker (nth 2 entry) nil)
|
||
(setq edebug-form-data (delq entry edebug-form-data)))))
|
||
|
||
|
||
;;;; Parser utilities
|
||
;;; ===============================
|
||
|
||
|
||
(defun edebug-syntax-error (&rest args)
|
||
;; Signal an invalid-read-syntax with ARGS.
|
||
(signal 'invalid-read-syntax args))
|
||
|
||
|
||
(defconst edebug-read-syntax-table
|
||
;; Lookup table for significant characters indicating the class of the
|
||
;; token that follows. This is not a \"real\" syntax table.
|
||
(let ((table (make-vector 256 'symbol))
|
||
(i 0))
|
||
(while (< i ?!)
|
||
(aset table i 'space)
|
||
(setq i (1+ i)))
|
||
(aset table ?\( 'lparen)
|
||
(aset table ?\) 'rparen)
|
||
(aset table ?\' 'quote)
|
||
(aset table ?\" 'string)
|
||
(aset table ?\? 'char)
|
||
(aset table ?\[ 'lbracket)
|
||
(aset table ?\] 'rbracket)
|
||
(aset table ?\. 'dot)
|
||
(aset table ?\# 'hash)
|
||
;; We treat numbers as symbols, because of confusion with -, -1, and 1-.
|
||
;; We dont care about any other chars since they wont be seen.
|
||
table))
|
||
|
||
(defun edebug-next-token-class ()
|
||
;; Move to the next token and return its class. We only care about
|
||
;; lparen, rparen, dot, quote, string, char, vector, or symbol.
|
||
(edebug-skip-whitespace)
|
||
(aref edebug-read-syntax-table (following-char)))
|
||
|
||
|
||
(defun edebug-skip-whitespace ()
|
||
;; Leave point before the next token, skipping white space and comments.
|
||
(skip-chars-forward " \t\r\n\f")
|
||
(while (= (following-char) ?\;)
|
||
;; \r is counted as a comment terminator to support selective display.
|
||
(skip-chars-forward "^\n\r") ; skip the comment
|
||
(skip-chars-forward " \t\r\n\f")))
|
||
|
||
|
||
;; Mostly obsolete reader; still used in one case.
|
||
|
||
(defun edebug-read-sexp ()
|
||
;; Read one sexp from the current buffer starting at point.
|
||
;; Leave point immediately after it. A sexp can be a list or atom.
|
||
;; An atom is a symbol (or number), character, string, or vector.
|
||
;; This works for reading anything legitimate, but it
|
||
;; is gummed up by parser inconsistencies (bugs?)
|
||
(let ((class (edebug-next-token-class)))
|
||
(cond
|
||
;; read goes one too far if a (possibly quoted) string or symbol
|
||
;; is immediately followed by non-whitespace.
|
||
((eq class 'symbol) (prog1
|
||
(edebug-original-read (current-buffer))
|
||
(if (not (eq (aref edebug-read-syntax-table
|
||
(preceding-char)) 'symbol))
|
||
(forward-char -1))))
|
||
((eq class 'string) (prog1
|
||
(edebug-original-read (current-buffer))
|
||
(if (/= (preceding-char) ?\")
|
||
(forward-char -1))))
|
||
((eq class 'quote) (forward-char 1)
|
||
(list 'quote (edebug-read-sexp)))
|
||
(t ; anything else, just read it.
|
||
(edebug-original-read (current-buffer))))))
|
||
|
||
|
||
;;;; Offsets for reader
|
||
;;; ==============================
|
||
|
||
;; Define a structure to represent offset positions of expressions.
|
||
;; Each offset structure looks like: (before . after) for constituents,
|
||
;; or for structures that have elements: (before <subexpressions> . after)
|
||
;; where the <subexpressions> are the offset structures for subexpressions
|
||
;; including the head of a list.
|
||
(defconst edebug-offsets nil)
|
||
|
||
;; Stack of offset structures in reverse order of the nesting.
|
||
;; This is used to get back to previous levels.
|
||
(defconst edebug-offsets-stack nil)
|
||
(defconst edebug-current-offset nil) ; Top of the stack, for convenience.
|
||
|
||
;; We must store whether we just read a list with a dotted form that
|
||
;; is itself a list. This structure will be condensed, so the offsets
|
||
;; must also be condensed.
|
||
(defconst edebug-read-dotted-list nil)
|
||
|
||
(defsubst edebug-initialize-offsets ()
|
||
;; Reinitialize offset recording.
|
||
(setq edebug-current-offset nil))
|
||
|
||
(defun edebug-store-before-offset (point)
|
||
;; Add a new offset pair with POINT as the before offset.
|
||
(let ((new-offset (list point)))
|
||
(if edebug-current-offset
|
||
(setcdr edebug-current-offset
|
||
(cons new-offset (cdr edebug-current-offset)))
|
||
;; Otherwise, we are at the top level, so initialize.
|
||
(setq edebug-offsets new-offset
|
||
edebug-offsets-stack nil
|
||
edebug-read-dotted-list nil))
|
||
;; Cons the new offset to the front of the stack.
|
||
(setq edebug-offsets-stack (cons new-offset edebug-offsets-stack)
|
||
edebug-current-offset new-offset)
|
||
))
|
||
|
||
(defun edebug-store-after-offset (point)
|
||
;; Finalize the current offset struct by reversing it and
|
||
;; store POINT as the after offset.
|
||
(if (not edebug-read-dotted-list)
|
||
;; Just reverse the offsets of all subexpressions.
|
||
(setcdr edebug-current-offset (nreverse (cdr edebug-current-offset)))
|
||
|
||
;; We just read a list after a dot, which will be abbreviated out.
|
||
(setq edebug-read-dotted-list nil)
|
||
;; Drop the corresponding offset pair.
|
||
;; That is, nconc the reverse of the rest of the offsets
|
||
;; with the cdr of last offset.
|
||
(setcdr edebug-current-offset
|
||
(nconc (nreverse (cdr (cdr edebug-current-offset)))
|
||
(cdr (car (cdr edebug-current-offset))))))
|
||
|
||
;; Now append the point using nconc.
|
||
(setq edebug-current-offset (nconc edebug-current-offset point))
|
||
;; Pop the stack.
|
||
(setq edebug-offsets-stack (cdr edebug-offsets-stack)
|
||
edebug-current-offset (car edebug-offsets-stack)))
|
||
|
||
(defun edebug-ignore-offset ()
|
||
;; Ignore the last created offset pair.
|
||
(setcdr edebug-current-offset (cdr (cdr edebug-current-offset))))
|
||
|
||
(def-edebug-spec edebug-storing-offsets (form body))
|
||
(put 'edebug-storing-offsets 'lisp-indent-hook 1)
|
||
|
||
(defmacro edebug-storing-offsets (point &rest body)
|
||
(` (unwind-protect
|
||
(progn
|
||
(edebug-store-before-offset (, point))
|
||
(,@ body))
|
||
(edebug-store-after-offset (point)))))
|
||
|
||
|
||
;;;; Reader for Emacs Lisp.
|
||
;;; ==========================================
|
||
;; Uses edebug-next-token-class (and edebug-skip-whitespace) above.
|
||
|
||
(defconst edebug-read-alist
|
||
'((symbol . edebug-read-symbol)
|
||
(lparen . edebug-read-list)
|
||
(string . edebug-read-string)
|
||
(quote . edebug-read-quote)
|
||
(lbracket . edebug-read-vector)
|
||
(hash . edebug-read-function)
|
||
))
|
||
|
||
(defun edebug-read-storing-offsets (stream)
|
||
(let ((class (edebug-next-token-class))
|
||
func
|
||
edebug-read-dotted-list) ; see edebug-store-after-offset
|
||
(edebug-storing-offsets (point)
|
||
(if (setq func (assq class edebug-read-alist))
|
||
(funcall (cdr func) stream)
|
||
;; anything else, just read it.
|
||
(edebug-original-read stream))
|
||
)))
|
||
|
||
(defun edebug-read-symbol (stream)
|
||
(prog1
|
||
(edebug-original-read stream)
|
||
;; loses for escaped chars
|
||
(if (not (eq (aref edebug-read-syntax-table
|
||
(preceding-char)) 'symbol))
|
||
(forward-char -1))))
|
||
|
||
(defun edebug-read-string (stream)
|
||
(prog1
|
||
(edebug-original-read stream)
|
||
(if (/= (preceding-char) ?\")
|
||
(forward-char -1))))
|
||
|
||
(defun edebug-read-quote (stream)
|
||
;; Turn 'thing into (quote thing)
|
||
(forward-char 1)
|
||
(list
|
||
(edebug-storing-offsets (point) 'quote)
|
||
(edebug-read-storing-offsets stream)))
|
||
|
||
(defun edebug-read-function (stream)
|
||
;; Turn #'thing into (function thing)
|
||
(forward-char 1)
|
||
(if (/= ?\' (following-char)) (edebug-syntax-error "Bad char"))
|
||
(forward-char 1)
|
||
(list
|
||
(edebug-storing-offsets (point)
|
||
(if (featurep 'cl) 'function* 'function))
|
||
(edebug-read-storing-offsets stream)))
|
||
|
||
(defun edebug-read-list (stream)
|
||
(forward-char 1) ; skip \(
|
||
(prog1
|
||
(let ((elements))
|
||
(while (not (memq (edebug-next-token-class) '(rparen dot)))
|
||
(setq elements (cons (edebug-read-storing-offsets stream) elements)))
|
||
(setq elements (nreverse elements))
|
||
(if (eq 'dot (edebug-next-token-class))
|
||
(let (dotted-form)
|
||
(forward-char 1) ; skip \.
|
||
(setq dotted-form (edebug-read-storing-offsets stream))
|
||
elements (nconc elements dotted-form)
|
||
(if (not (eq (edebug-next-token-class) 'rparen))
|
||
(edebug-syntax-error "Expected `)'"))
|
||
(setq edebug-read-dotted-list (listp dotted-form))
|
||
))
|
||
elements)
|
||
(forward-char 1) ; skip \)
|
||
))
|
||
|
||
(defun edebug-read-vector (stream)
|
||
(forward-char 1) ; skip \[
|
||
(prog1
|
||
(let ((elements))
|
||
(while (not (eq 'rbracket (edebug-next-token-class)))
|
||
(setq elements (cons (edebug-read-storing-offsets stream) elements)))
|
||
(apply 'vector (nreverse elements)))
|
||
(forward-char 1) ; skip \]
|
||
))
|
||
|
||
|
||
|
||
;;;; Cursors for traversal of list and vector elements with offsets.
|
||
;;;====================================================================
|
||
|
||
(defvar edebug-dotted-spec nil)
|
||
|
||
(defun edebug-new-cursor (expressions offsets)
|
||
;; Return a new cursor for EXPRESSIONS with OFFSETS.
|
||
(if (vectorp expressions)
|
||
(setq expressions (append expressions nil)))
|
||
(cons expressions offsets))
|
||
|
||
(defsubst edebug-set-cursor (cursor expressions offsets)
|
||
;; Set the CURSOR's EXPRESSIONS and OFFSETS to the given.
|
||
;; Return the cursor.
|
||
(setcar cursor expressions)
|
||
(setcdr cursor offsets)
|
||
cursor)
|
||
|
||
'(defun edebug-copy-cursor (cursor)
|
||
;; Copy the cursor using the same object and offsets.
|
||
(cons (car cursor) (cdr cursor)))
|
||
|
||
(defsubst edebug-cursor-expressions (cursor)
|
||
(car cursor))
|
||
(defsubst edebug-cursor-offsets (cursor)
|
||
(cdr cursor))
|
||
|
||
(defsubst edebug-empty-cursor (cursor)
|
||
;; Return non-nil if CURSOR is empty - meaning no more elements.
|
||
(null (car cursor)))
|
||
|
||
(defsubst edebug-top-element (cursor)
|
||
;; Return the top element at the cursor.
|
||
;; Assumes not empty.
|
||
(car (car cursor)))
|
||
|
||
(defun edebug-top-element-required (cursor &rest error)
|
||
;; Check if a dotted form is required.
|
||
(if edebug-dotted-spec (edebug-no-match cursor "Dot expected."))
|
||
;; Check if there is at least one more argument.
|
||
(if (edebug-empty-cursor cursor) (apply 'edebug-no-match cursor error))
|
||
;; Return that top element.
|
||
(edebug-top-element cursor))
|
||
|
||
(defsubst edebug-top-offset (cursor)
|
||
;; Return the top offset pair corresponding to the top element.
|
||
(car (cdr cursor)))
|
||
|
||
(defun edebug-move-cursor (cursor)
|
||
;; Advance and return the cursor to the next element and offset.
|
||
;; throw no-match if empty before moving.
|
||
;; This is a violation of the cursor encapsulation, but
|
||
;; there is plenty of that going on while matching.
|
||
;; The following test should always fail.
|
||
(if (edebug-empty-cursor cursor)
|
||
(edebug-no-match cursor "Not enough arguments."))
|
||
(setcar cursor (cdr (car cursor)))
|
||
(setcdr cursor (cdr (cdr cursor)))
|
||
cursor)
|
||
|
||
|
||
(defun edebug-before-offset (cursor)
|
||
;; Return the before offset of the cursor.
|
||
;; If there is nothing left in the offsets,
|
||
;; return one less than the offset itself,
|
||
;; which is the after offset for a list.
|
||
(let ((offset (edebug-cursor-offsets cursor)))
|
||
(if (consp offset)
|
||
(car (car offset))
|
||
(1- offset))))
|
||
|
||
(defun edebug-after-offset (cursor)
|
||
;; Return the after offset of the cursor object.
|
||
(let ((offset (edebug-top-offset cursor)))
|
||
(while (consp offset)
|
||
(setq offset (cdr offset)))
|
||
offset))
|
||
|
||
;;;; The Parser
|
||
;;; ===============================
|
||
|
||
;;; The top level function for parsing forms is
|
||
;;; edebug-read-and-maybe-wrap-form; it calls all the rest. It checks the
|
||
;;; syntax a bit and leaves point at any error it finds, but otherwise
|
||
;;; should appear to work like eval-defun.
|
||
|
||
;;; The basic plan is to surround each expression with a call to
|
||
;;; the edebug debugger together with indexes into a table of positions of
|
||
;;; all expressions. Thus an expression "exp" becomes:
|
||
|
||
;;; (edebug-after (edebug-before 1) 2 exp)
|
||
|
||
;;; When this is evaluated, first point is moved to the beginning of
|
||
;;; exp at offset 1 of the current function. The expression is
|
||
;;; evaluated, which may cause more edebug calls, and then point is
|
||
;;; moved to offset 2 after the end of exp.
|
||
|
||
;;; The highest level expressions of the function are wrapped in a call to
|
||
;;; edebug-enter, which supplies the function name and the actual
|
||
;;; arguments to the function. See functions edebug-enter, edebug-before,
|
||
;;; and edebug-after for more details.
|
||
|
||
;; Dynamically bound vars, left unbound, but globally declared.
|
||
;; This is to quiet the byte compiler.
|
||
|
||
;; Window data of the highest definition being wrapped.
|
||
;; This data is shared by all embedded definitions.
|
||
(defvar edebug-top-window-data)
|
||
|
||
(defvar edebug-&optional)
|
||
(defvar edebug-&rest)
|
||
(defvar edebug-gate nil) ;; whether no-match forces an error.
|
||
|
||
(defconst edebug-def-name nil) ; name of definition, used by interactive-form
|
||
(defconst edebug-old-def-name nil) ; previous name of containing definition.
|
||
|
||
(defconst edebug-error-point nil)
|
||
(defconst edebug-best-error nil)
|
||
|
||
|
||
(defun edebug-read-and-maybe-wrap-form ()
|
||
;; Read a form and wrap it with edebug calls, if the conditions are right.
|
||
;; Here we just catch any no-match not caught below and signal an error.
|
||
|
||
;; Run the setup hook.
|
||
(run-hooks 'edebug-setup-hook)
|
||
(setq edebug-setup-hook nil)
|
||
|
||
(let (result
|
||
edebug-top-window-data
|
||
edebug-def-name;; make sure it is locally nil
|
||
;; I dont like these here!!
|
||
edebug-&optional
|
||
edebug-&rest
|
||
edebug-gate
|
||
edebug-best-error
|
||
edebug-error-point
|
||
no-match
|
||
;; Do this once here instead of several times.
|
||
(max-lisp-eval-depth (+ 800 max-lisp-eval-depth))
|
||
(max-specpdl-size (+ 1200 max-specpdl-size)))
|
||
(setq no-match
|
||
(catch 'no-match
|
||
(setq result (edebug-read-and-maybe-wrap-form1))
|
||
nil))
|
||
(if no-match
|
||
(apply 'edebug-syntax-error no-match))
|
||
result))
|
||
|
||
|
||
(defun edebug-read-and-maybe-wrap-form1 ()
|
||
(let (spec
|
||
def-kind
|
||
defining-form-p
|
||
def-name
|
||
;; These offset things dont belong here, but to support recursive
|
||
;; calls to edebug-read, they need to be here.
|
||
edebug-offsets
|
||
edebug-offsets-stack
|
||
edebug-current-offset ; reset to nil
|
||
)
|
||
(save-excursion
|
||
(if (and (eq 'lparen (edebug-next-token-class))
|
||
(eq 'symbol (progn (forward-char 1) (edebug-next-token-class))))
|
||
;; Find out if this is a defining form from first symbol
|
||
(setq def-kind (read (current-buffer))
|
||
spec (and (symbolp def-kind) (get-edebug-spec def-kind))
|
||
defining-form-p (and (listp spec)
|
||
(eq '&define (car spec)))
|
||
;; This is incorrect in general!! But OK most of the time.
|
||
def-name (if (and defining-form-p
|
||
(eq 'name (car (cdr spec)))
|
||
(eq 'symbol (edebug-next-token-class)))
|
||
(read (current-buffer))))))
|
||
(cond
|
||
(defining-form-p
|
||
(if (or edebug-all-defs edebug-all-forms)
|
||
;; If it is a defining form and we are edebugging defs,
|
||
;; then let edebug-list-form start it.
|
||
(let ((cursor (edebug-new-cursor
|
||
(list (edebug-read-storing-offsets (current-buffer)))
|
||
(list edebug-offsets))))
|
||
(car
|
||
(edebug-make-form-wrapper
|
||
cursor
|
||
(edebug-before-offset cursor)
|
||
(1- (edebug-after-offset cursor))
|
||
(list (cons (symbol-name def-kind) (cdr spec))))))
|
||
|
||
;; Not edebugging this form, so reset the symbol's edebug
|
||
;; property to be just a marker at the definition's source code.
|
||
;; This only works for defs with simple names.
|
||
(put def-name 'edebug (point-marker))
|
||
;; Also nil out dependent defs.
|
||
'(mapcar (function
|
||
(lambda (def)
|
||
(put def-name 'edebug nil)))
|
||
(get def-name 'edebug-dependents))
|
||
(edebug-read-sexp)))
|
||
|
||
;; If all forms are being edebugged, explicitly wrap it.
|
||
(edebug-all-forms
|
||
(let ((cursor (edebug-new-cursor
|
||
(list (edebug-read-storing-offsets (current-buffer)))
|
||
(list edebug-offsets))))
|
||
(edebug-make-form-wrapper
|
||
cursor
|
||
(edebug-before-offset cursor)
|
||
(edebug-after-offset cursor)
|
||
nil)))
|
||
|
||
;; Not a defining form, and not edebugging.
|
||
(t (edebug-read-sexp)))
|
||
))
|
||
|
||
|
||
(defvar edebug-def-args) ; args of defining form.
|
||
(defvar edebug-def-interactive) ; is it an emacs interactive function?
|
||
(defvar edebug-inside-func) ;; whether code is inside function context.
|
||
;; Currently def-form sets this to nil; def-body sets it to t.
|
||
|
||
(defun edebug-interactive-p-name ()
|
||
;; Return a unique symbol for the variable used to store the
|
||
;; status of interactive-p for this function.
|
||
(intern (format "edebug-%s-interactive-p" edebug-def-name)))
|
||
|
||
|
||
(defun edebug-wrap-def-body (forms)
|
||
"Wrap the FORMS of a definition body."
|
||
(if edebug-def-interactive
|
||
(` (let (((, (edebug-interactive-p-name))
|
||
(interactive-p)))
|
||
(, (edebug-make-enter-wrapper forms))))
|
||
(edebug-make-enter-wrapper forms)))
|
||
|
||
|
||
(defun edebug-make-enter-wrapper (forms)
|
||
;; Generate the enter wrapper for some forms of a definition.
|
||
;; This is not to be used for the body of other forms, e.g. `while',
|
||
;; since it wraps the list of forms with a call to `edebug-enter'.
|
||
;; Uses the dynamically bound vars edebug-def-name and edebug-def-args.
|
||
;; Do this after parsing since that may find a name.
|
||
(setq edebug-def-name
|
||
(or edebug-def-name edebug-old-def-name (gensym "edebug-anon")))
|
||
(` (edebug-enter
|
||
(quote (, edebug-def-name))
|
||
(, (if edebug-inside-func
|
||
(` (list (,@
|
||
;; Doesnt work with more than one def-body!!
|
||
;; But the list will just be reversed.
|
||
(nreverse edebug-def-args))))
|
||
'nil))
|
||
(function (lambda () (,@ forms)))
|
||
)))
|
||
|
||
|
||
(defvar edebug-form-begin-marker) ; the mark for def being instrumented
|
||
|
||
(defvar edebug-offset-index) ; the next available offset index.
|
||
(defvar edebug-offset-list) ; the list of offset positions.
|
||
|
||
(defun edebug-inc-offset (offset)
|
||
;; modifies edebug-offset-index and edebug-offset-list
|
||
;; accesses edebug-func-marc and buffer point
|
||
(prog1
|
||
edebug-offset-index
|
||
(setq edebug-offset-list (cons (- offset edebug-form-begin-marker)
|
||
edebug-offset-list)
|
||
edebug-offset-index (1+ edebug-offset-index))))
|
||
|
||
|
||
(defun edebug-make-before-and-after-form (before-index form after-index)
|
||
;; Return the edebug form for the current function at offset BEFORE-INDEX
|
||
;; given FORM. Looks like:
|
||
;; (edebug-after (edebug-before BEFORE-INDEX) AFTER-INDEX FORM)
|
||
;; Also increment the offset index for subsequent use.
|
||
;; if (not edebug-stop-before-symbols) and form is a symbol,
|
||
;; then dont call edebug-before.
|
||
(list 'edebug-after
|
||
(list 'edebug-before before-index)
|
||
after-index form))
|
||
|
||
(defun edebug-make-after-form (form after-index)
|
||
;; Like edebug-make-before-and-after-form, but only after.
|
||
(list 'edebug-after 0 after-index form))
|
||
|
||
|
||
(defun edebug-unwrap (sexp)
|
||
"Return the unwrapped SEXP or return it as is if it is not wrapped.
|
||
The SEXP might be the result of wrapping a body, which is a list of
|
||
expressions; a `progn' form will be returned enclosing these forms."
|
||
(if (consp sexp)
|
||
(cond
|
||
((eq 'edebug-after (car sexp))
|
||
(nth 3 sexp))
|
||
((eq 'edebug-enter (car sexp))
|
||
(let ((forms (nthcdr 2 (nth 1 (nth 3 sexp)))))
|
||
(if (> (length forms) 1)
|
||
(cons 'progn forms) ;; could return (values forms) instead.
|
||
(car forms))))
|
||
(t sexp);; otherwise it is not wrapped, so just return it.
|
||
)
|
||
sexp))
|
||
|
||
(defun edebug-unwrap* (sexp)
|
||
"Return the sexp recursively unwrapped."
|
||
(let ((new-sexp (edebug-unwrap sexp)))
|
||
(while (not (eq sexp new-sexp))
|
||
(setq sexp new-sexp
|
||
new-sexp (edebug-unwrap sexp)))
|
||
(if (consp new-sexp)
|
||
(mapcar 'edebug-unwrap* new-sexp)
|
||
new-sexp)))
|
||
|
||
|
||
(defun edebug-defining-form (cursor form-begin form-end speclist)
|
||
;; Process the defining form, starting outside the form.
|
||
;; The speclist is a generated list spec that looks like:
|
||
;; (("def-symbol" defining-form-spec-sans-&define))
|
||
;; Skip the first offset.
|
||
(edebug-set-cursor cursor (edebug-cursor-expressions cursor)
|
||
(cdr (edebug-cursor-offsets cursor)))
|
||
(edebug-make-form-wrapper
|
||
cursor
|
||
form-begin (1- form-end)
|
||
speclist))
|
||
|
||
(defun edebug-make-form-wrapper (cursor form-begin form-end
|
||
&optional speclist)
|
||
;; Wrap a form, usually a defining form, but any evaluated one.
|
||
;; If speclist is non-nil, this is being called by edebug-defining-form.
|
||
;; Otherwise it is being called from edebug-read-and-maybe-wrap-form1.
|
||
;; This is a hack, but I havent figured out a simpler way yet.
|
||
(let* ((form-data-entry (edebug-get-form-data-entry form-begin form-end))
|
||
;; Set this marker before parsing.
|
||
(edebug-form-begin-marker
|
||
(if form-data-entry
|
||
(edebug-form-data-begin form-data-entry)
|
||
;; Buffer must be current-buffer for this to work:
|
||
(set-marker (make-marker) form-begin))))
|
||
|
||
(let (edebug-offset-list
|
||
(edebug-offset-index 0)
|
||
result
|
||
;; For definitions.
|
||
;; (edebug-containing-def-name edebug-def-name)
|
||
;; Get name from form-data, if any.
|
||
(edebug-old-def-name (edebug-form-data-name form-data-entry))
|
||
edebug-def-name
|
||
edebug-def-args
|
||
edebug-def-interactive
|
||
edebug-inside-func;; whether wrapped code executes inside a function.
|
||
)
|
||
|
||
(setq result
|
||
(if speclist
|
||
(edebug-match cursor speclist)
|
||
|
||
;; else wrap as an enter-form.
|
||
(edebug-make-enter-wrapper (list (edebug-form cursor)))))
|
||
|
||
;; Set the name here if it was not set by edebug-make-enter-wrapper.
|
||
(setq edebug-def-name
|
||
(or edebug-def-name edebug-old-def-name (gensym "edebug-anon")))
|
||
|
||
;; Add this def as a dependent of containing def. Buggy.
|
||
'(if (and edebug-containing-def-name
|
||
(not (get edebug-containing-def-name 'edebug-dependents)))
|
||
(put edebug-containing-def-name 'edebug-dependents
|
||
(cons edebug-def-name
|
||
(get edebug-containing-def-name
|
||
'edebug-dependents))))
|
||
|
||
;; Create a form-data-entry or modify existing entry's markers.
|
||
;; In the latter case, pointers to the entry remain eq.
|
||
(if (not form-data-entry)
|
||
(setq form-data-entry
|
||
(edebug-make-form-data-entry
|
||
edebug-def-name
|
||
edebug-form-begin-marker
|
||
;; Buffer must be current-buffer.
|
||
(set-marker (make-marker) form-end)
|
||
))
|
||
(edebug-set-form-data-entry
|
||
form-data-entry edebug-def-name ;; in case name is changed
|
||
form-begin form-end))
|
||
|
||
;; (message "defining: %s" edebug-def-name) (sit-for 2)
|
||
(edebug-make-top-form-data-entry form-data-entry)
|
||
(message "Edebug: %s" edebug-def-name)
|
||
;;(debug edebug-def-name)
|
||
|
||
;; Destructively reverse edebug-offset-list and make vector from it.
|
||
(setq edebug-offset-list (vconcat (nreverse edebug-offset-list)))
|
||
|
||
;; Side effects on the property list of edebug-def-name.
|
||
(edebug-clear-frequency-count edebug-def-name)
|
||
(edebug-clear-coverage edebug-def-name)
|
||
|
||
;; Set up the initial window data.
|
||
(if (not edebug-top-window-data) ;; if not already set, do it now.
|
||
(let ((window ;; Find the best window for this buffer.
|
||
(or (get-buffer-window (current-buffer))
|
||
(selected-window))))
|
||
(setq edebug-top-window-data
|
||
(cons window (window-start window)))))
|
||
|
||
;; Store the edebug data in symbol's property list.
|
||
(put edebug-def-name 'edebug
|
||
;; A struct or vector would be better here!!
|
||
(list edebug-form-begin-marker
|
||
nil ; clear breakpoints
|
||
edebug-offset-list
|
||
edebug-top-window-data
|
||
))
|
||
result
|
||
)))
|
||
|
||
|
||
(defun edebug-clear-frequency-count (name)
|
||
;; Create initial frequency count vector.
|
||
;; For each stop point, the counter is incremented each time it is visited.
|
||
(put name 'edebug-freq-count
|
||
(make-vector (length edebug-offset-list) 0)))
|
||
|
||
|
||
(defun edebug-clear-coverage (name)
|
||
;; Create initial coverage vector.
|
||
;; Only need one per expression, but it is simpler to use stop points.
|
||
(put name 'edebug-coverage
|
||
(make-vector (length edebug-offset-list) 'unknown)))
|
||
|
||
|
||
(defun edebug-form (cursor)
|
||
;; Return the instrumented form for the following form.
|
||
;; Add the point offsets to the edebug-offset-list for the form.
|
||
(let* ((form (edebug-top-element-required cursor "Expected form"))
|
||
(offset (edebug-top-offset cursor)))
|
||
(prog1
|
||
(cond
|
||
((consp form)
|
||
;; The first offset for a list form is for the list form itself.
|
||
(if (eq 'quote (car form))
|
||
form
|
||
(let* ((head (car form))
|
||
(spec (and (symbolp head) (get-edebug-spec head)))
|
||
(new-cursor (edebug-new-cursor form offset)))
|
||
;; Find out if this is a defining form from first symbol.
|
||
;; An indirect spec would not work here, yet.
|
||
(if (and (consp spec) (eq '&define (car spec)))
|
||
(edebug-defining-form
|
||
new-cursor
|
||
(car offset);; before the form
|
||
(edebug-after-offset cursor)
|
||
(cons (symbol-name head) (cdr spec)))
|
||
;; Wrap a regular form.
|
||
(edebug-make-before-and-after-form
|
||
(edebug-inc-offset (car offset))
|
||
(edebug-list-form new-cursor)
|
||
;; After processing the list form, the new-cursor is left
|
||
;; with the offset after the form.
|
||
(edebug-inc-offset (edebug-cursor-offsets new-cursor))))
|
||
)))
|
||
|
||
((symbolp form)
|
||
(cond
|
||
;; Check for constant symbols that dont get wrapped.
|
||
((or (memq form '(t nil))
|
||
(keywordp form))
|
||
form)
|
||
|
||
;; This option may go away.
|
||
(edebug-stop-before-symbols
|
||
(edebug-make-before-and-after-form
|
||
(edebug-inc-offset (car offset))
|
||
form
|
||
(edebug-inc-offset (cdr offset))
|
||
))
|
||
|
||
(t ;; just a variable
|
||
(edebug-make-after-form form (edebug-inc-offset (cdr offset))))))
|
||
|
||
;; Anything else is self-evaluating.
|
||
(t form))
|
||
(edebug-move-cursor cursor))))
|
||
|
||
|
||
(defsubst edebug-forms (cursor) (edebug-match cursor '(&rest form)))
|
||
(defsubst edebug-sexps (cursor) (edebug-match cursor '(&rest sexp)))
|
||
|
||
(defsubst edebug-list-form-args (head cursor)
|
||
;; Process the arguments of a list form given that head of form is a symbol.
|
||
;; Helper for edebug-list-form
|
||
(let ((spec (get-edebug-spec head)))
|
||
(cond
|
||
(spec
|
||
(cond
|
||
((consp spec)
|
||
;; It is a speclist.
|
||
(let (edebug-best-error
|
||
edebug-error-point);; This may not be needed.
|
||
(edebug-match-sublist cursor spec)))
|
||
((eq t spec) (edebug-forms cursor))
|
||
((eq 0 spec) (edebug-sexps cursor))
|
||
((symbolp spec) (funcall spec cursor));; Not used by edebug,
|
||
; but leave it in for compatibility.
|
||
))
|
||
;; No edebug-form-spec provided.
|
||
((edebug-macrop head)
|
||
(if edebug-eval-macro-args
|
||
(edebug-forms cursor)
|
||
(edebug-sexps cursor)))
|
||
(t ;; Otherwise it is a function call.
|
||
(edebug-forms cursor)))))
|
||
|
||
|
||
(defun edebug-list-form (cursor)
|
||
;; Return an instrumented form built from the list form.
|
||
;; The after offset will be left in the cursor after processing the form.
|
||
(let ((head (edebug-top-element-required cursor "Expected elements"))
|
||
;; Prevent backtracking whenever instrumenting.
|
||
(edebug-gate t)
|
||
;; A list form is never optional because it matches anything.
|
||
(edebug-&optional nil)
|
||
(edebug-&rest nil))
|
||
;; Skip the first offset.
|
||
(edebug-set-cursor cursor (edebug-cursor-expressions cursor)
|
||
(cdr (edebug-cursor-offsets cursor)))
|
||
(cond
|
||
((null head) nil) ; () is legal.
|
||
|
||
((symbolp head)
|
||
(cond
|
||
((null head)
|
||
(edebug-syntax-error "nil head"))
|
||
((eq head 'interactive-p)
|
||
;; Special case: replace (interactive-p) with variable
|
||
(setq edebug-def-interactive 'check-it)
|
||
(edebug-move-cursor cursor)
|
||
(edebug-interactive-p-name))
|
||
(t
|
||
(cons head (edebug-list-form-args
|
||
head (edebug-move-cursor cursor))))))
|
||
|
||
((consp head)
|
||
(if (and (listp head) (eq (car head) ',))
|
||
(edebug-match cursor '(("," def-form) body))
|
||
;; Process anonymous function and args.
|
||
;; This assumes no anonymous macros.
|
||
(edebug-match-specs cursor '(lambda-expr body) 'edebug-match-specs)))
|
||
|
||
(t (edebug-syntax-error
|
||
"Head of list form must be a symbol or lambda expression.")))
|
||
))
|
||
|
||
|
||
;;;; Matching of specs.
|
||
;;; ===================
|
||
|
||
(defvar edebug-after-dotted-spec nil)
|
||
|
||
(defvar edebug-matching-depth 0) ;; initial value
|
||
(defconst edebug-max-depth 150) ;; maximum number of matching recursions.
|
||
|
||
|
||
;;;; Failure to match
|
||
;;; ==================
|
||
;; This throws to no-match, if there are higher alternatives.
|
||
;; Otherwise it signals an error. The place of the error is found
|
||
;; with the two before- and after-offset functions.
|
||
|
||
(defun edebug-no-match (cursor &rest edebug-args)
|
||
;; Throw a no-match, or signal an error immediately if gate is active.
|
||
;; Remember this point in case we need to report this error.
|
||
(setq edebug-error-point (or edebug-error-point
|
||
(edebug-before-offset cursor))
|
||
edebug-best-error (or edebug-best-error edebug-args))
|
||
(if (and edebug-gate (not edebug-&optional))
|
||
(progn
|
||
(if edebug-error-point
|
||
(goto-char edebug-error-point))
|
||
(apply 'edebug-syntax-error edebug-args))
|
||
(funcall 'throw 'no-match edebug-args)))
|
||
|
||
|
||
(defun edebug-match (cursor specs)
|
||
;; Top level spec matching function.
|
||
;; Used also at each lower level of specs.
|
||
(let (edebug-&optional
|
||
edebug-&rest
|
||
edebug-best-error
|
||
edebug-error-point
|
||
(edebug-gate edebug-gate) ;; locally bound to limit effect
|
||
)
|
||
(edebug-match-specs cursor specs 'edebug-match-specs)))
|
||
|
||
|
||
(defun edebug-match-one-spec (cursor spec)
|
||
;; Match one spec, which is not a keyword &-spec.
|
||
(cond
|
||
((symbolp spec) (edebug-match-symbol cursor spec))
|
||
((vectorp spec) (edebug-match cursor (append spec nil)))
|
||
((stringp spec) (edebug-match-string cursor spec))
|
||
((listp spec) (edebug-match-list cursor spec))
|
||
))
|
||
|
||
|
||
(defun edebug-match-specs (cursor specs remainder-handler)
|
||
;; Append results of matching the list of specs.
|
||
;; The first spec is handled and the remainder-handler handles the rest.
|
||
(let ((edebug-matching-depth
|
||
(if (> edebug-matching-depth edebug-max-depth)
|
||
(error "too deep - perhaps infinite loop in spec?")
|
||
(1+ edebug-matching-depth))))
|
||
(cond
|
||
((null specs) nil)
|
||
|
||
;; Is the spec dotted?
|
||
((atom specs)
|
||
(let ((edebug-dotted-spec t));; Containing spec list was dotted.
|
||
(edebug-match-specs cursor (list specs) remainder-handler)))
|
||
|
||
;; Is the form dotted?
|
||
((not (listp (edebug-cursor-expressions cursor)));; allow nil
|
||
(if (not edebug-dotted-spec)
|
||
(edebug-no-match cursor "Dotted spec required."))
|
||
;; Cancel dotted spec and dotted form.
|
||
(let ((edebug-dotted-spec)
|
||
(this-form (edebug-cursor-expressions cursor))
|
||
(this-offset (edebug-cursor-offsets cursor)))
|
||
;; Wrap the form in a list, (by changing the cursor??)...
|
||
(edebug-set-cursor cursor (list this-form) this-offset)
|
||
;; and process normally, then unwrap the result.
|
||
(car (edebug-match-specs cursor specs remainder-handler))))
|
||
|
||
(t;; Process normally.
|
||
(let* ((spec (car specs))
|
||
(rest)
|
||
(first-char (and (symbolp spec) (aref (symbol-name spec) 0))))
|
||
;;(message "spec = %s first char = %s" spec first-char) (sit-for 1)
|
||
(nconc
|
||
(cond
|
||
((eq ?& first-char);; "&" symbols take all following specs.
|
||
(funcall (get-edebug-spec spec) cursor (cdr specs)))
|
||
((eq ?: first-char);; ":" symbols take one following spec.
|
||
(setq rest (cdr (cdr specs)))
|
||
(funcall (get-edebug-spec spec) cursor (car (cdr specs))))
|
||
(t;; Any other normal spec.
|
||
(setq rest (cdr specs))
|
||
(edebug-match-one-spec cursor spec)))
|
||
(funcall remainder-handler cursor rest remainder-handler)))))))
|
||
|
||
|
||
;; Define specs for all the symbol specs with functions used to process them.
|
||
;; Perhaps we shouldnt be doing this with edebug-form-specs since the
|
||
;; user may want to define macros or functions with the same names.
|
||
;; We could use an internal obarray for these primitive specs.
|
||
|
||
(mapcar
|
||
(function (lambda (pair)
|
||
(put (car pair) 'edebug-form-spec (cdr pair))))
|
||
'((&optional . edebug-match-&optional)
|
||
(&rest . edebug-match-&rest)
|
||
(&or . edebug-match-&or)
|
||
(form . edebug-match-form)
|
||
(sexp . edebug-match-sexp)
|
||
(body . edebug-match-body)
|
||
(&define . edebug-match-&define)
|
||
(name . edebug-match-name)
|
||
(:name . edebug-match-colon-name)
|
||
(arg . edebug-match-arg)
|
||
(def-body . edebug-match-def-body)
|
||
(def-form . edebug-match-def-form)
|
||
;; Less frequently used:
|
||
;; (function . edebug-match-function)
|
||
(lambda-expr . edebug-match-lambda-expr)
|
||
;; (keywordp . edebug-match-keywordp)
|
||
(¬ . edebug-match-¬)
|
||
(&key . edebug-match-&key)
|
||
(place . edebug-match-place)
|
||
(gate . edebug-match-gate)
|
||
;; (nil . edebug-match-nil) not this one - special case it.
|
||
))
|
||
|
||
(defun edebug-match-symbol (cursor symbol)
|
||
;; Match a symbol spec.
|
||
(let* ((spec (get-edebug-spec symbol)))
|
||
(cond
|
||
(spec
|
||
(if (consp spec)
|
||
;; It is an indirect spec.
|
||
(edebug-match cursor spec)
|
||
;; Otherwise it should be the symbol name of a function.
|
||
;; There could be a bug here - maybe need to do edebug-match bindings.
|
||
(funcall spec cursor)))
|
||
|
||
((null symbol) ;; special case this.
|
||
(edebug-match-nil cursor))
|
||
|
||
((fboundp symbol) ; is it a predicate?
|
||
(let ((sexp (edebug-top-element-required cursor "Expected" symbol)))
|
||
;; Special case for edebug-`.
|
||
(if (and (listp sexp) (eq (car sexp) ',))
|
||
(edebug-match cursor '(("," def-form)))
|
||
(if (not (funcall symbol sexp))
|
||
(edebug-no-match cursor symbol "failed"))
|
||
(edebug-move-cursor cursor)
|
||
(list sexp))))
|
||
(t (error "%s is not a form-spec or function" symbol))
|
||
)))
|
||
|
||
|
||
(defun edebug-match-sexp (cursor)
|
||
(list (prog1 (edebug-top-element-required cursor "Expected sexp")
|
||
(edebug-move-cursor cursor))))
|
||
|
||
(defun edebug-match-form (cursor)
|
||
(list (edebug-form cursor)))
|
||
|
||
(defalias 'edebug-match-place 'edebug-match-form)
|
||
;; Currently identical to edebug-match-form.
|
||
;; This is for common lisp setf-style place arguments.
|
||
|
||
(defsubst edebug-match-body (cursor) (edebug-forms cursor))
|
||
|
||
(defun edebug-match-&optional (cursor specs)
|
||
;; Keep matching until one spec fails.
|
||
(edebug-&optional-wrapper cursor specs 'edebug-&optional-wrapper))
|
||
|
||
(defun edebug-&optional-wrapper (cursor specs remainder-handler)
|
||
(let (result
|
||
(edebug-&optional specs)
|
||
(edebug-gate nil)
|
||
(this-form (edebug-cursor-expressions cursor))
|
||
(this-offset (edebug-cursor-offsets cursor)))
|
||
(if (null (catch 'no-match
|
||
(setq result
|
||
(edebug-match-specs cursor specs remainder-handler))
|
||
;; Returning nil means no no-match was thrown.
|
||
nil))
|
||
result
|
||
;; no-match, but don't fail; just reset cursor and return nil.
|
||
(edebug-set-cursor cursor this-form this-offset)
|
||
nil)))
|
||
|
||
|
||
(defun edebug-&rest-wrapper (cursor specs remainder-handler)
|
||
(if (null specs) (setq specs edebug-&rest))
|
||
;; Reuse the &optional handler with this as the remainder handler.
|
||
(edebug-&optional-wrapper cursor specs remainder-handler))
|
||
|
||
(defun edebug-match-&rest (cursor specs)
|
||
;; Repeatedly use specs until failure.
|
||
(let ((edebug-&rest specs) ;; remember these
|
||
edebug-best-error
|
||
edebug-error-point)
|
||
(edebug-&rest-wrapper cursor specs 'edebug-&rest-wrapper)))
|
||
|
||
|
||
(defun edebug-match-&or (cursor specs)
|
||
;; Keep matching until one spec succeeds, and return its results.
|
||
;; If none match, fail.
|
||
;; This needs to be optimized since most specs spend time here.
|
||
(let ((original-specs specs)
|
||
(this-form (edebug-cursor-expressions cursor))
|
||
(this-offset (edebug-cursor-offsets cursor)))
|
||
(catch 'matched
|
||
(while specs
|
||
(catch 'no-match
|
||
(throw 'matched
|
||
(let (edebug-gate ;; only while matching each spec
|
||
edebug-best-error
|
||
edebug-error-point)
|
||
;; Doesnt support e.g. &or symbolp &rest form
|
||
(edebug-match-one-spec cursor (car specs)))))
|
||
;; Match failed, so reset and try again.
|
||
(setq specs (cdr specs))
|
||
;; Reset the cursor for the next match.
|
||
(edebug-set-cursor cursor this-form this-offset))
|
||
;; All failed.
|
||
(apply 'edebug-no-match cursor "Expected one of" original-specs))
|
||
))
|
||
|
||
|
||
(defun edebug-match-¬ (cursor specs)
|
||
;; If any specs match, then fail
|
||
(if (null (catch 'no-match
|
||
(let ((edebug-gate nil))
|
||
(save-excursion
|
||
(edebug-match-&or cursor specs)))
|
||
nil))
|
||
;; This means something matched, so it is a no match.
|
||
(edebug-no-match cursor "Unexpected"))
|
||
;; This means nothing matched, so it is OK.
|
||
nil) ;; So, return nothing
|
||
|
||
|
||
(def-edebug-spec &key edebug-match-&key)
|
||
|
||
(defun edebug-match-&key (cursor specs)
|
||
;; Following specs must look like (<name> <spec>) ...
|
||
;; where <name> is the name of a keyword, and spec is its spec.
|
||
;; This really doesnt save much over the expanded form and takes time.
|
||
(edebug-match-&rest
|
||
cursor
|
||
(cons '&or
|
||
(mapcar (function (lambda (pair)
|
||
(vector (format ":%s" (car pair))
|
||
(car (cdr pair)))))
|
||
specs))))
|
||
|
||
|
||
(defun edebug-match-gate (cursor)
|
||
;; Simply set the gate to prevent backtracking at this level.
|
||
(setq edebug-gate t)
|
||
nil)
|
||
|
||
|
||
(defun edebug-match-list (cursor specs)
|
||
;; The spec is a list, but what kind of list, and what context?
|
||
(if edebug-dotted-spec
|
||
;; After dotted spec but form did not contain dot,
|
||
;; so match list spec elements as if spliced in.
|
||
(prog1
|
||
(let ((edebug-dotted-spec))
|
||
(edebug-match-specs cursor specs 'edebug-match-specs))
|
||
;; If it matched, really clear the dotted-spec flag.
|
||
(setq edebug-dotted-spec nil))
|
||
(let ((spec (car specs))
|
||
(form (edebug-top-element-required cursor "Expected" specs)))
|
||
(cond
|
||
((eq 'quote spec)
|
||
(let ((spec (car (cdr specs))))
|
||
(cond
|
||
((symbolp spec)
|
||
;; Special case: spec quotes a symbol to match.
|
||
;; Change in future. Use "..." instead.
|
||
(if (not (eq spec form))
|
||
(edebug-no-match cursor "Expected" spec))
|
||
(edebug-move-cursor cursor)
|
||
(setq edebug-gate t)
|
||
form)
|
||
(t
|
||
(error "Bad spec: %s" specs)))))
|
||
|
||
((listp form)
|
||
(prog1
|
||
(list (edebug-match-sublist
|
||
;; First offset is for the list form itself.
|
||
;; Treat nil as empty list.
|
||
(edebug-new-cursor form (cdr (edebug-top-offset cursor)))
|
||
specs))
|
||
(edebug-move-cursor cursor)))
|
||
|
||
((and (eq 'vector spec) (vectorp form))
|
||
;; Special case: match a vector with the specs.
|
||
(let ((result (edebug-match-sublist
|
||
(edebug-new-cursor
|
||
form (cdr (edebug-top-offset cursor)))
|
||
(cdr specs))))
|
||
(edebug-move-cursor cursor)
|
||
(list (apply 'vector result))))
|
||
|
||
(t (edebug-no-match cursor "Expected" specs)))
|
||
)))
|
||
|
||
|
||
(defun edebug-match-sublist (cursor specs)
|
||
;; Match a sublist of specs.
|
||
(let (edebug-&optional
|
||
;;edebug-best-error
|
||
;;edebug-error-point
|
||
)
|
||
(prog1
|
||
;; match with edebug-match-specs so edebug-best-error is not bound.
|
||
(edebug-match-specs cursor specs 'edebug-match-specs)
|
||
(if (not (edebug-empty-cursor cursor))
|
||
(if edebug-best-error
|
||
(apply 'edebug-no-match cursor edebug-best-error)
|
||
;; A failed &rest or &optional spec may leave some args.
|
||
(edebug-no-match cursor "Failed matching" specs)
|
||
)))))
|
||
|
||
|
||
(defun edebug-match-string (cursor spec)
|
||
(let ((sexp (edebug-top-element-required cursor "Expected" spec)))
|
||
(if (not (eq (intern spec) sexp))
|
||
(edebug-no-match cursor "Expected" spec)
|
||
;; Since it matched, failure means immediate error, unless &optional.
|
||
(setq edebug-gate t)
|
||
(edebug-move-cursor cursor)
|
||
(list sexp)
|
||
)))
|
||
|
||
(defun edebug-match-nil (cursor)
|
||
;; There must be nothing left to match a nil.
|
||
(if (not (edebug-empty-cursor cursor))
|
||
(edebug-no-match cursor "Unmatched argument(s)")
|
||
nil))
|
||
|
||
|
||
(defun edebug-match-function (cursor)
|
||
(error "Use function-form instead of function in edebug spec"))
|
||
|
||
(defun edebug-match-&define (cursor specs)
|
||
;; Match a defining form.
|
||
;; Normally, &define is interpretted specially other places.
|
||
;; This should only be called inside of a spec list to match the remainder
|
||
;; of the current list. e.g. ("lambda" &define args def-body)
|
||
(edebug-make-form-wrapper
|
||
cursor
|
||
(edebug-before-offset cursor)
|
||
;; Find the last offset in the list.
|
||
(let ((offsets (edebug-cursor-offsets cursor)))
|
||
(while (consp offsets) (setq offsets (cdr offsets)))
|
||
offsets)
|
||
specs))
|
||
|
||
(defun edebug-match-lambda-expr (cursor)
|
||
;; The expression must be a function.
|
||
;; This will match any list form that begins with a symbol
|
||
;; that has an edebug-form-spec beginning with &define. In
|
||
;; practice, only lambda expressions should be used.
|
||
;; I could add a &lambda specification to avoid confusion.
|
||
(let* ((sexp (edebug-top-element-required
|
||
cursor "Expected lambda expression"))
|
||
(offset (edebug-top-offset cursor))
|
||
(head (and (consp sexp) (car sexp)))
|
||
(spec (and (symbolp head) (get-edebug-spec head)))
|
||
(edebug-inside-func nil))
|
||
;; Find out if this is a defining form from first symbol.
|
||
(if (and (consp spec) (eq '&define (car spec)))
|
||
(prog1
|
||
(list
|
||
(edebug-defining-form
|
||
(edebug-new-cursor sexp offset)
|
||
(car offset);; before the sexp
|
||
(edebug-after-offset cursor)
|
||
(cons (symbol-name head) (cdr spec))))
|
||
(edebug-move-cursor cursor))
|
||
(edebug-no-match cursor "Expected lambda expression")
|
||
)))
|
||
|
||
|
||
;; Not needed if the predicate exists.
|
||
'(defun edebug-match-keywordp (cursor)
|
||
;; Match a common lisp style keyword symbol.
|
||
(let ((sexp (edebug-top-element cursor)))
|
||
(if (keywordp sexp)
|
||
(prog1
|
||
(list sexp)
|
||
(edebug-move-cursor cursor))
|
||
(edebug-no-match cursor "Keyword expected"))))
|
||
|
||
|
||
(defun edebug-match-name (cursor)
|
||
;; Set the edebug-def-name bound in edebug-defining-form.
|
||
(let ((name (edebug-top-element-required cursor "Expected name")))
|
||
;; Maybe strings and numbers could be used.
|
||
(if (not (symbolp name))
|
||
(edebug-no-match cursor "Symbol expected for name of definition"))
|
||
(setq edebug-def-name
|
||
(if edebug-def-name
|
||
;; Construct a new name by appending to previous name.
|
||
(intern (format "%s@%s" edebug-def-name name))
|
||
name))
|
||
(edebug-move-cursor cursor)
|
||
(list name)))
|
||
|
||
(defun edebug-match-colon-name (cursor spec)
|
||
;; Set the edebug-def-name to the spec.
|
||
(setq edebug-def-name
|
||
(if edebug-def-name
|
||
;; Construct a new name by appending to previous name.
|
||
(intern (format "%s@%s" edebug-def-name spec))
|
||
spec))
|
||
nil)
|
||
|
||
(defun edebug-match-arg (cursor)
|
||
;; set the def-args bound in edebug-defining-form
|
||
(let ((edebug-arg (edebug-top-element-required cursor "Expected arg")))
|
||
(if (or (not (symbolp edebug-arg))
|
||
(lambda-list-keywordp edebug-arg))
|
||
(edebug-no-match cursor "Bad argument:" edebug-arg))
|
||
(edebug-move-cursor cursor)
|
||
(setq edebug-def-args (cons edebug-arg edebug-def-args))
|
||
(list edebug-arg)))
|
||
|
||
(defun edebug-match-def-form (cursor)
|
||
;; Like form but the form is wrapped in edebug-enter form.
|
||
;; The form is assumed to be executing outside of the function context.
|
||
;; This is a hack for now, since a def-form might execute inside as well.
|
||
;; Not to be used otherwise.
|
||
(let ((edebug-inside-func nil))
|
||
(list (edebug-make-enter-wrapper (list (edebug-form cursor))))))
|
||
|
||
(defun edebug-match-def-body (cursor)
|
||
;; Like body but body is wrapped in edebug-enter form.
|
||
;; The body is assumed to be executing inside of the function context.
|
||
;; Not to be used otherwise.
|
||
(let ((edebug-inside-func t))
|
||
(list (edebug-wrap-def-body (edebug-forms cursor)))))
|
||
|
||
|
||
;;;; Edebug Form Specs
|
||
;;; ==========================================================
|
||
;;; See cl-specs.el for common lisp specs.
|
||
|
||
;;;;* Spec for def-edebug-spec
|
||
;;; Out of date.
|
||
|
||
(defun edebug-spec-p (object)
|
||
"Return non-nil if OBJECT is a symbol with an edebug-form-spec property."
|
||
(and (symbolp object)
|
||
(get object 'edebug-form-spec)))
|
||
|
||
(def-edebug-spec def-edebug-spec
|
||
;; Top level is different from lower levels.
|
||
(&define :name edebug-spec name
|
||
&or "nil" edebug-spec-p "t" "0" (&rest edebug-spec)))
|
||
|
||
(def-edebug-spec edebug-spec-list
|
||
;; A list must have something in it, or it is nil, a symbolp
|
||
((edebug-spec . [&or nil edebug-spec])))
|
||
|
||
(def-edebug-spec edebug-spec
|
||
(&or
|
||
(vector &rest edebug-spec) ; matches a vector
|
||
("vector" &rest edebug-spec) ; matches a vector spec
|
||
("quote" symbolp)
|
||
edebug-spec-list
|
||
stringp
|
||
[lambda-list-keywordp &rest edebug-spec]
|
||
[keywordp gate edebug-spec]
|
||
edebug-spec-p ;; Including all the special ones e.g. form.
|
||
symbolp;; a predicate
|
||
))
|
||
|
||
|
||
;;;;* Emacs special forms and some functions.
|
||
|
||
;; quote expects only one argument, although it allows any number.
|
||
(def-edebug-spec quote sexp)
|
||
|
||
;; The standard defining forms.
|
||
(def-edebug-spec defconst defvar)
|
||
(def-edebug-spec defvar (symbolp &optional form stringp))
|
||
|
||
(def-edebug-spec defun
|
||
(&define name lambda-list
|
||
[&optional stringp]
|
||
[&optional ("interactive" interactive)]
|
||
def-body))
|
||
(def-edebug-spec defmacro
|
||
(&define name lambda-list def-body))
|
||
|
||
(def-edebug-spec arglist lambda-list) ;; denegrated - use lambda-list.
|
||
|
||
(def-edebug-spec lambda-list
|
||
(([&rest arg]
|
||
[&optional ["&optional" arg &rest arg]]
|
||
&optional ["&rest" arg]
|
||
)))
|
||
|
||
(def-edebug-spec interactive
|
||
(&optional &or stringp def-form))
|
||
|
||
;; A function-form is for an argument that may be a function or a form.
|
||
;; This specially recognizes anonymous functions quoted with quote.
|
||
(def-edebug-spec function-form
|
||
;; form at the end could also handle "function",
|
||
;; but recognize it specially to avoid wrapping function forms.
|
||
(&or ([&or "quote" "function"] &or symbolp lambda-expr) form))
|
||
|
||
;; function expects a symbol or a lambda or macro expression
|
||
;; A macro is allowed by Emacs.
|
||
(def-edebug-spec function (&or symbolp lambda-expr))
|
||
|
||
;; lambda is a macro in emacs 19.
|
||
(def-edebug-spec lambda (&define lambda-list
|
||
[&optional stringp]
|
||
[&optional ("interactive" interactive)]
|
||
def-body))
|
||
|
||
;; A macro expression is a lambda expression with "macro" prepended.
|
||
(def-edebug-spec macro (&define "lambda" lambda-list def-body))
|
||
|
||
;; (def-edebug-spec anonymous-form ((&or ["lambda" lambda] ["macro" macro])))
|
||
|
||
;; Standard functions that take function-forms arguments.
|
||
(def-edebug-spec mapcar (function-form form))
|
||
(def-edebug-spec mapconcat (function-form form form))
|
||
(def-edebug-spec mapatoms (function-form &optional form))
|
||
(def-edebug-spec apply (function-form &rest form))
|
||
(def-edebug-spec funcall (function-form &rest form))
|
||
|
||
(def-edebug-spec let
|
||
((&rest &or (symbolp &optional form) symbolp)
|
||
body))
|
||
|
||
(def-edebug-spec let* let)
|
||
|
||
(def-edebug-spec setq (&rest symbolp form))
|
||
(def-edebug-spec setq-default setq)
|
||
|
||
(def-edebug-spec cond (&rest (&rest form)))
|
||
|
||
(def-edebug-spec condition-case
|
||
(symbolp
|
||
form
|
||
&rest (symbolp body)))
|
||
|
||
|
||
(def-edebug-spec ` (backquote-form))
|
||
|
||
;; Supports quotes inside backquotes,
|
||
;; but only at the top level inside unquotes.
|
||
(def-edebug-spec backquote-form
|
||
(&or
|
||
([&or "," ",@"] &or ("quote" backquote-form) form)
|
||
(backquote-form &rest backquote-form)
|
||
;; If you use dotted forms in backquotes, replace the previous line
|
||
;; with the following. This takes quite a bit more stack space, however.
|
||
;; (backquote-form . [&or nil backquote-form])
|
||
(vector &rest backquote-form)
|
||
sexp))
|
||
|
||
;; Special version of backquote that instruments backquoted forms
|
||
;; destined to be evaluated, usually as the result of a
|
||
;; macroexpansion. Backquoted code can only have unquotes (, and ,@)
|
||
;; in places where list forms are allowed, and predicates. If the
|
||
;; backquote is used in a macro, unquoted code that come from
|
||
;; arguments must be instrumented, if at all, with def-form not def-body.
|
||
|
||
;; We could assume that all forms (not nested in other forms)
|
||
;; in arguments of macros should be def-forms, whether or not the macros
|
||
;; are defined with edebug-` but this would be expensive.
|
||
|
||
;; ,@ might have some problems.
|
||
|
||
(defalias 'edebug-` '`) ;; same macro as regular backquote.
|
||
(def-edebug-spec edebug-` (def-form))
|
||
|
||
;; Assume immediate quote in unquotes mean backquote at next higher level.
|
||
(def-edebug-spec , (&or ("quote" edebug-`) def-form))
|
||
(def-edebug-spec ,@ (&define ;; so (,@ form) is never wrapped.
|
||
&or ("quote" edebug-`) def-form))
|
||
|
||
;; New byte compiler.
|
||
(def-edebug-spec defsubst defun)
|
||
(def-edebug-spec dont-compile t)
|
||
(def-edebug-spec eval-when-compile t)
|
||
(def-edebug-spec eval-and-compile t)
|
||
|
||
;; Anything else?
|
||
|
||
|
||
;;====================
|
||
;; Some miscellaneous specs for macros in public packages.
|
||
;; Send me yours.
|
||
|
||
;; advice.el by Hans Chalupsky (hans@cs.buffalo.edu)
|
||
|
||
(def-edebug-spec ad-dolist ((symbolp form &optional form) body))
|
||
(def-edebug-spec defadvice
|
||
(&define name ;; thing being advised.
|
||
(name ;; class is [&or "before" "around" "after"
|
||
;; "activation" "deactivation"]
|
||
name ;; name of advice
|
||
&rest sexp ;; optional position and flags
|
||
)
|
||
[&optional stringp]
|
||
[&optional ("interactive" interactive)]
|
||
def-body))
|
||
|
||
|
||
;;;; The debugger itself
|
||
;;; ===============================
|
||
|
||
(defvar edebug-active nil) ;; Non-nil when edebug is active
|
||
|
||
;;; add minor-mode-alist entry
|
||
(or (assq 'edebug-active minor-mode-alist)
|
||
(setq minor-mode-alist (cons (list 'edebug-active " *Debugging*")
|
||
minor-mode-alist)))
|
||
|
||
(defvar edebug-stack nil)
|
||
;; Stack of active functions evaluated via edebug.
|
||
;; Should be nil at the top level.
|
||
|
||
(defvar edebug-stack-depth -1)
|
||
;; Index of last edebug-stack item.
|
||
|
||
(defvar edebug-offset-indices nil)
|
||
;; Stack of offset indices of visited edebug sexps.
|
||
;; Should be nil at the top level.
|
||
;; Each function adds one cons. Top is modified with setcar.
|
||
|
||
|
||
(defvar edebug-entered nil
|
||
;; Non-nil if edebug has already been entered at this recursive edit level.
|
||
;; This should stay nil at the top level.
|
||
)
|
||
|
||
;; Should these be options?
|
||
(defconst edebug-debugger 'edebug
|
||
;; Name of function to use for debugging when error or quit occurs.
|
||
;; Set this to 'debug if you want to debug edebug.
|
||
)
|
||
|
||
|
||
;; Dynamically bound variables, declared globally but left unbound.
|
||
(defvar edebug-function) ; the function being executed. change name!!
|
||
(defvar edebug-args) ; the arguments of the function
|
||
(defvar edebug-data) ; the edebug data for the function
|
||
(defvar edebug-value) ; the result of the expression
|
||
(defvar edebug-after-index)
|
||
(defvar edebug-def-mark) ; the mark for the definition
|
||
(defvar edebug-freq-count) ; the count of expression visits.
|
||
(defvar edebug-coverage) ; the coverage results of each expression of function.
|
||
|
||
(defvar edebug-buffer) ; which buffer the function is in.
|
||
(defvar edebug-result) ; the result of the function call returned by body
|
||
(defvar edebug-outside-executing-macro)
|
||
(defvar edebug-outside-defining-kbd-macro)
|
||
|
||
(defvar edebug-execution-mode 'step) ; Current edebug mode set by user.
|
||
(defvar edebug-next-execution-mode nil) ; Use once instead of initial mode.
|
||
|
||
(defvar edebug-outside-debug-on-error) ; the value of debug-on-error outside
|
||
(defvar edebug-outside-debug-on-quit) ; the value of debug-on-quit outside
|
||
|
||
;;; Handling signals
|
||
;;; =================
|
||
|
||
(if (not (fboundp 'edebug-emacs-signal))
|
||
(defalias 'edebug-emacs-signal (symbol-function 'signal)))
|
||
;; We should use advise for this!!
|
||
|
||
(defun edebug-signal (edebug-signal-name edebug-signal-data)
|
||
"Signal an error. Args are SIGNAL-NAME, and associated DATA.
|
||
A signal name is a symbol with an `error-conditions' property
|
||
that is a list of condition names.
|
||
A handler for any of those names will get to handle this signal.
|
||
The symbol `error' should always be one of them.
|
||
|
||
DATA should be a list. Its elements are printed as part of the error message.
|
||
If the signal is handled, DATA is made available to the handler.
|
||
See `condition-case'.
|
||
|
||
This is the Edebug replacement for the standard `signal'. It should
|
||
only be active while Edebug is. It checks `debug-on-error' to see
|
||
whether it should call the debugger. When execution is resumed, the
|
||
error is signaled again."
|
||
(if (and (listp debug-on-error) (memq edebug-signal-name debug-on-error))
|
||
(edebug 'error (cons edebug-signal-name edebug-signal-data)))
|
||
;; If we reach here without another non-local exit, then send signal again.
|
||
;; i.e. the signal is not continuable, yet.
|
||
(edebug-emacs-signal edebug-signal-name edebug-signal-data))
|
||
|
||
|
||
;;; Entering Edebug
|
||
;;; ==================
|
||
|
||
(defvar cl-lexical-debug) ;; Defined in cl.el
|
||
|
||
(defun edebug-enter (edebug-function edebug-args edebug-body)
|
||
;; Entering FUNC. The arguments are ARGS, and the body is BODY.
|
||
;; Setup edebug variables and evaluate BODY. This function is called
|
||
;; when a function evaluated with edebug-eval-top-level-form is entered.
|
||
;; Return the result of BODY.
|
||
|
||
;; Is this the first time we are entering edebug since
|
||
;; lower-level recursive-edit command?
|
||
;; More precisely, this tests whether Edebug is currently active.
|
||
(if (not edebug-entered)
|
||
(let ((edebug-entered t)
|
||
;; Binding max-lisp-eval-depth here is OK,
|
||
;; but not after the unwind-protect.
|
||
;; Doing it here also keeps it from growing.
|
||
(max-lisp-eval-depth (+ 100 max-lisp-eval-depth)) ; too much??
|
||
(max-specpdl-size (+ 200 max-specpdl-size))
|
||
|
||
(debugger edebug-debugger) ; only while edebug is active.
|
||
(edebug-outside-debug-on-error debug-on-error)
|
||
(edebug-outside-debug-on-quit debug-on-quit)
|
||
;; Binding these may not be the right thing to do.
|
||
;; We want to allow the global values to be changed.
|
||
(debug-on-error (or debug-on-error edebug-on-error))
|
||
(debug-on-quit edebug-on-quit)
|
||
|
||
;; Save the outside value of executing macro. (here??)
|
||
(edebug-outside-executing-macro executing-macro)
|
||
;; Don't keep reading from an executing kbd macro within edebug
|
||
;; unless edebug-continue-kbd-macro is non-nil.
|
||
;; Again, local binding may not be best.
|
||
(executing-macro (if edebug-continue-kbd-macro executing-macro))
|
||
|
||
;; Lexical bindings must be uncompiled for this to work.
|
||
(cl-lexical-debug t))
|
||
(setq edebug-execution-mode (or edebug-next-execution-mode
|
||
edebug-initial-mode
|
||
edebug-execution-mode)
|
||
edebug-next-execution-mode nil)
|
||
;; Bind signal to edebug-signal only while Edebug is active.
|
||
(fset 'signal 'edebug-signal)
|
||
(unwind-protect
|
||
(edebug-enter edebug-function edebug-args edebug-body)
|
||
(fset 'signal (symbol-function 'edebug-emacs-signal))))
|
||
|
||
(let* ((edebug-data (get edebug-function 'edebug))
|
||
(edebug-def-mark (car edebug-data)) ; mark at def start
|
||
(edebug-freq-count (get edebug-function 'edebug-freq-count))
|
||
(edebug-coverage (get edebug-function 'edebug-coverage))
|
||
(edebug-buffer (marker-buffer edebug-def-mark))
|
||
|
||
(edebug-stack (cons edebug-function edebug-stack))
|
||
(edebug-offset-indices (cons 0 edebug-offset-indices))
|
||
)
|
||
(if (get edebug-function 'edebug-on-entry)
|
||
(progn
|
||
(setq edebug-execution-mode 'step)
|
||
(if (eq (get edebug-function 'edebug-on-entry) 'temp)
|
||
(put edebug-function 'edebug-on-entry nil))))
|
||
(if edebug-trace
|
||
(edebug-enter-trace edebug-body)
|
||
(funcall edebug-body))
|
||
)))
|
||
|
||
|
||
(defun edebug-enter-trace (edebug-body)
|
||
(let ((edebug-stack-depth (1+ edebug-stack-depth))
|
||
edebug-result)
|
||
(edebug-print-trace-before
|
||
(format "%s args: %s" edebug-function edebug-args))
|
||
(prog1 (setq edebug-result (funcall edebug-body))
|
||
(edebug-print-trace-after
|
||
(format "%s result: %s" edebug-function edebug-result)))))
|
||
|
||
(def-edebug-spec edebug-tracing (form body))
|
||
|
||
(defmacro edebug-tracing (msg &rest body)
|
||
"Print MSG in *edebug-trace* before and after evaluating BODY.
|
||
The result of BODY is also printed."
|
||
(` (let ((edebug-stack-depth (1+ edebug-stack-depth))
|
||
edebug-result)
|
||
(edebug-print-trace-before (, msg))
|
||
(prog1 (setq edebug-result (progn (,@ body)))
|
||
(edebug-print-trace-after
|
||
(format "%s result: %s" (, msg) edebug-result))))))
|
||
|
||
(defun edebug-print-trace-before (msg)
|
||
"Function called to print trace info before expression evaluation.
|
||
MSG is printed after `::::{ '."
|
||
(edebug-trace-display
|
||
edebug-trace-buffer "%s{ %s" (make-string edebug-stack-depth ?\:) msg))
|
||
|
||
(defun edebug-print-trace-after (msg)
|
||
"Function called to print trace info after expression evaluation.
|
||
MSG is printed after `::::} '."
|
||
(edebug-trace-display
|
||
edebug-trace-buffer "%s} %s" (make-string edebug-stack-depth ?\:) msg))
|
||
|
||
|
||
|
||
(defun edebug-slow-before (edebug-before-index)
|
||
;; Debug current function given BEFORE position.
|
||
;; Called from functions compiled with edebug-eval-top-level-form.
|
||
;; Return the before index.
|
||
(setcar edebug-offset-indices edebug-before-index)
|
||
|
||
;; Increment frequency count
|
||
(aset edebug-freq-count edebug-before-index
|
||
(1+ (aref edebug-freq-count edebug-before-index)))
|
||
|
||
(if (or (not (memq edebug-execution-mode '(Go-nonstop next)))
|
||
(edebug-input-pending-p))
|
||
(edebug-debugger edebug-before-index 'before nil))
|
||
edebug-before-index)
|
||
|
||
(defun edebug-fast-before (edebug-before-index)
|
||
;; Do nothing.
|
||
)
|
||
|
||
(defun edebug-slow-after (edebug-before-index edebug-after-index edebug-value)
|
||
;; Debug current function given AFTER position and VALUE.
|
||
;; Called from functions compiled with edebug-eval-top-level-form.
|
||
;; Return VALUE.
|
||
(setcar edebug-offset-indices edebug-after-index)
|
||
|
||
;; Increment frequency count
|
||
(aset edebug-freq-count edebug-after-index
|
||
(1+ (aref edebug-freq-count edebug-after-index)))
|
||
(if edebug-test-coverage (edebug-update-coverage))
|
||
|
||
(if (and (eq edebug-execution-mode 'Go-nonstop)
|
||
(not (edebug-input-pending-p)))
|
||
;; Just return result.
|
||
edebug-value
|
||
(edebug-debugger edebug-after-index 'after edebug-value)
|
||
))
|
||
|
||
(defun edebug-fast-after (edebug-before-index edebug-after-index edebug-value)
|
||
;; Do nothing but return the value.
|
||
edebug-value)
|
||
|
||
(defun edebug-run-slow ()
|
||
(defalias 'edebug-before 'edebug-slow-before)
|
||
(defalias 'edebug-after 'edebug-slow-after))
|
||
|
||
;; This is not used, yet.
|
||
(defun edebug-run-fast ()
|
||
(defalias 'edebug-before 'edebug-fast-before)
|
||
(defalias 'edebug-after 'edebug-fast-after))
|
||
|
||
(edebug-run-slow)
|
||
|
||
|
||
(defun edebug-update-coverage ()
|
||
(let ((old-result (aref edebug-coverage edebug-after-index)))
|
||
(cond
|
||
((eq 'ok-coverage old-result))
|
||
((eq 'unknown old-result)
|
||
(aset edebug-coverage edebug-after-index edebug-value))
|
||
;; Test if a different result.
|
||
((not (eq edebug-value old-result))
|
||
(aset edebug-coverage edebug-after-index 'ok-coverage)))))
|
||
|
||
|
||
;; Dynamically declared unbound variables.
|
||
(defvar edebug-arg-mode) ; the mode, either before, after, or error
|
||
(defvar edebug-breakpoints)
|
||
(defvar edebug-break-data) ; break data for current function.
|
||
(defvar edebug-break) ; whether a break occurred.
|
||
(defvar edebug-global-break) ; whether a global break occurred.
|
||
(defvar edebug-break-condition) ; whether the breakpoint is conditional.
|
||
|
||
(defvar edebug-break-result nil)
|
||
(defvar edebug-global-break-result nil)
|
||
|
||
|
||
(defun edebug-debugger (edebug-offset-index edebug-arg-mode edebug-value)
|
||
;; Check breakpoints and pending input.
|
||
;; If edebug display should be updated, call edebug-display.
|
||
;; Return edebug-value.
|
||
(let* (;; This needs to be here since breakpoints may be changed.
|
||
(edebug-breakpoints (car (cdr edebug-data))) ; list of breakpoints
|
||
(edebug-break-data (assq edebug-offset-index edebug-breakpoints))
|
||
(edebug-break-condition (car (cdr edebug-break-data)))
|
||
(edebug-global-break
|
||
(if edebug-global-break-condition
|
||
(condition-case nil
|
||
(setq edebug-global-break-result
|
||
(eval edebug-global-break-condition))
|
||
(error nil))))
|
||
(edebug-break))
|
||
|
||
;;; (edebug-trace "exp: %s" edebug-value)
|
||
;; Test whether we should break.
|
||
(setq edebug-break
|
||
(or edebug-global-break
|
||
(and edebug-break-data
|
||
(or (not edebug-break-condition)
|
||
(setq edebug-break-result
|
||
(eval edebug-break-condition))))))
|
||
(if (and edebug-break
|
||
(nth 2 edebug-break-data)) ; is it temporary?
|
||
;; Delete the breakpoint.
|
||
(setcdr edebug-data
|
||
(cons (delq edebug-break-data edebug-breakpoints)
|
||
(cdr (cdr edebug-data)))))
|
||
|
||
;; Display if mode is not go, continue, or Continue-fast
|
||
;; or break, or input is pending,
|
||
(if (or (not (memq edebug-execution-mode '(go continue Continue-fast)))
|
||
edebug-break
|
||
(edebug-input-pending-p))
|
||
(edebug-display)) ; <--------------- display
|
||
|
||
edebug-value
|
||
))
|
||
|
||
|
||
;; window-start now stored with each function.
|
||
;;(defvar edebug-window-start nil)
|
||
;; Remember where each buffers' window starts between edebug calls.
|
||
;; This is to avoid spurious recentering.
|
||
;; Does this still need to be buffer-local??
|
||
;;(setq-default edebug-window-start nil)
|
||
;;(make-variable-buffer-local 'edebug-window-start)
|
||
|
||
|
||
;; Dynamically declared unbound vars
|
||
(defvar edebug-point) ; the point in edebug buffer
|
||
(defvar edebug-outside-buffer) ; the current-buffer outside of edebug
|
||
(defvar edebug-outside-point) ; the point outside of edebug
|
||
(defvar edebug-outside-mark) ; the mark outside of edebug
|
||
(defvar edebug-window-data) ; window and window-start for current function
|
||
(defvar edebug-outside-windows) ; outside window configuration
|
||
(defvar edebug-eval-buffer) ; for the evaluation list.
|
||
(defvar edebug-outside-o-a-p) ; outside overlay-arrow-position
|
||
(defvar edebug-outside-o-a-s) ; outside overlay-arrow-string
|
||
(defvar edebug-outside-c-i-e-a) ; outside cursor-in-echo-area
|
||
|
||
(defvar edebug-eval-list nil) ;; List of expressions to evaluate.
|
||
|
||
(defvar edebug-previous-result nil) ;; Last result returned.
|
||
|
||
;; Emacs 18
|
||
(defalias 'edebug-mark 'mark)
|
||
(defalias 'edebug-mark-marker 'mark-marker)
|
||
|
||
|
||
(defun edebug-display ()
|
||
;; Setup windows for edebug, determine mode, maybe enter recursive-edit.
|
||
;; Uses local variables of edebug-enter, edebug-before, edebug-after
|
||
;; and edebug-debugger.
|
||
(let ((edebug-active t) ; for minor mode alist
|
||
edebug-stop ; should we enter recursive-edit
|
||
(edebug-point (+ edebug-def-mark
|
||
(aref (nth 2 edebug-data) edebug-offset-index)))
|
||
edebug-buffer-outside-point ; current point in edebug-buffer
|
||
;; window displaying edebug-buffer
|
||
(edebug-window-data (nth 3 edebug-data))
|
||
(edebug-outside-window (selected-window))
|
||
(edebug-outside-buffer (current-buffer))
|
||
(edebug-outside-point (point))
|
||
(edebug-outside-mark (edebug-mark))
|
||
edebug-outside-windows ; window or screen configuration
|
||
edebug-buffer-points
|
||
|
||
edebug-eval-buffer ; declared here so we can kill it below
|
||
(edebug-eval-result-list (and edebug-eval-list
|
||
(edebug-eval-result-list)))
|
||
(edebug-outside-o-a-p overlay-arrow-position)
|
||
(edebug-outside-o-a-s overlay-arrow-string)
|
||
(edebug-outside-c-i-e-a cursor-in-echo-area)
|
||
|
||
overlay-arrow-position
|
||
overlay-arrow-string
|
||
(cursor-in-echo-area nil)
|
||
;; any others??
|
||
|
||
edebug-trace-window
|
||
edebug-trace-window-start
|
||
)
|
||
(if (not (buffer-name edebug-buffer))
|
||
(let ((debug-on-error nil))
|
||
(error "Buffer defining %s not found" edebug-function)))
|
||
|
||
(if (eq 'after edebug-arg-mode)
|
||
;; Compute result string now before windows are modified.
|
||
(edebug-compute-previous-result edebug-value))
|
||
|
||
(if edebug-save-windows
|
||
;; Save windows now before we modify them.
|
||
(setq edebug-outside-windows
|
||
(edebug-current-windows edebug-save-windows)))
|
||
|
||
(if edebug-save-displayed-buffer-points
|
||
(setq edebug-buffer-points (edebug-get-displayed-buffer-points)))
|
||
|
||
;; First move the edebug buffer point to edebug-point
|
||
;; so that window start doesnt get changed when we display it.
|
||
;; I dont know if this is going to help.
|
||
;;(set-buffer edebug-buffer)
|
||
;;(goto-char edebug-point)
|
||
|
||
;; If edebug-buffer is not currently displayed,
|
||
;; first find a window for it.
|
||
(edebug-pop-to-buffer edebug-buffer (car edebug-window-data))
|
||
(setcar edebug-window-data (selected-window))
|
||
|
||
;; Now display eval list, if any.
|
||
;; This is done after the pop to edebug-buffer
|
||
;; so that buffer-window correspondence is correct after quitting.
|
||
(edebug-eval-display edebug-eval-result-list)
|
||
;; The evaluation list better not have deleted edebug-window-data.
|
||
(select-window (car edebug-window-data))
|
||
(set-buffer edebug-buffer)
|
||
|
||
(setq edebug-buffer-outside-point (point))
|
||
(goto-char edebug-point)
|
||
|
||
(if (eq 'before edebug-arg-mode)
|
||
;; Check whether positions are uptodate - assumes never before symbol
|
||
(if (not (memq (following-char) '(?\( ?\# ?\` )))
|
||
(let ((debug-on-error nil))
|
||
(error "Source has changed - reevaluate definition of %s"
|
||
edebug-function)
|
||
)))
|
||
|
||
(setcdr edebug-window-data
|
||
(edebug-adjust-window (cdr edebug-window-data)))
|
||
|
||
;; Test if there is input, not including keyboard macros.
|
||
(if (edebug-input-pending-p)
|
||
(progn
|
||
(setq edebug-execution-mode 'step
|
||
edebug-stop t)
|
||
(edebug-stop)
|
||
;; (discard-input) ; is this unfriendly??
|
||
))
|
||
;; Now display arrow based on mode.
|
||
(edebug-overlay-arrow)
|
||
|
||
(cond
|
||
((eq 'error edebug-arg-mode)
|
||
;; Display error message
|
||
(setq edebug-execution-mode 'step)
|
||
(edebug-overlay-arrow)
|
||
(beep)
|
||
(if (eq 'quit (car edebug-value))
|
||
(message "Quit")
|
||
(edebug-report-error edebug-value)))
|
||
(edebug-break
|
||
(cond
|
||
(edebug-global-break
|
||
(message "Global Break: %s => %s"
|
||
edebug-global-break-condition
|
||
edebug-global-break-result))
|
||
(edebug-break-condition
|
||
(message "Break: %s => %s"
|
||
edebug-break-condition
|
||
edebug-break-result))
|
||
((not (eq edebug-execution-mode 'Continue-fast))
|
||
(message "Break"))
|
||
(t)))
|
||
|
||
(t (message "")))
|
||
|
||
(if (eq 'after edebug-arg-mode)
|
||
(progn
|
||
;; Display result of previous evaluation.
|
||
(if (and edebug-break
|
||
(not (eq edebug-execution-mode 'Continue-fast)))
|
||
(sit-for 1)) ; Show break message.
|
||
(edebug-previous-result)))
|
||
|
||
(cond
|
||
(edebug-break
|
||
(cond
|
||
((eq edebug-execution-mode 'continue) (edebug-sit-for 1))
|
||
((eq edebug-execution-mode 'Continue-fast) (edebug-sit-for 0))
|
||
(t (setq edebug-stop t))))
|
||
;; not edebug-break
|
||
((eq edebug-execution-mode 'trace)
|
||
(edebug-sit-for 1)) ; Force update and pause.
|
||
((eq edebug-execution-mode 'Trace-fast)
|
||
(edebug-sit-for 0)) ; Force update and continue.
|
||
)
|
||
|
||
(unwind-protect
|
||
(if (or edebug-stop
|
||
(memq edebug-execution-mode '(step next))
|
||
(eq edebug-arg-mode 'error))
|
||
(progn
|
||
;; (setq edebug-execution-mode 'step)
|
||
;; (edebug-overlay-arrow) ; this doesnt always show up.
|
||
(edebug-recursive-edit))) ; <---------- Recursive edit
|
||
|
||
;; Reset the edebug-window-data to whatever it is now.
|
||
(let ((window (if (eq (window-buffer) edebug-buffer)
|
||
(selected-window)
|
||
(edebug-get-buffer-window edebug-buffer))))
|
||
;; Remember window-start for edebug-buffer, if still displayed.
|
||
(if window
|
||
(progn
|
||
(setcar edebug-window-data window)
|
||
(setcdr edebug-window-data (window-start window)))))
|
||
|
||
;; Save trace window point before restoring outside windows.
|
||
;; Could generalize this for other buffers.
|
||
(setq edebug-trace-window (get-buffer-window edebug-trace-buffer))
|
||
(if edebug-trace-window
|
||
(setq edebug-trace-window-start
|
||
(and edebug-trace-window (window-start edebug-trace-window))))
|
||
|
||
;; Restore windows before continuing.
|
||
(if edebug-save-windows
|
||
(progn
|
||
(edebug-set-windows edebug-outside-windows)
|
||
|
||
;; Restore displayed buffer points.
|
||
;; Needed even if restoring windows because
|
||
;; window-points are not restored. (correct?? should they be??)
|
||
(if edebug-save-displayed-buffer-points
|
||
(edebug-set-buffer-points edebug-buffer-points))
|
||
|
||
;; Unrestore trace window's window-point.
|
||
(if edebug-trace-window
|
||
(set-window-start edebug-trace-window
|
||
edebug-trace-window-start))
|
||
|
||
;; Unrestore edebug-buffer's window-start, if displayed.
|
||
;; (edebug-trace "selected-window: %s window-buffer: %s"
|
||
;; (selected-window) (window-buffer))
|
||
;; (edebug-trace "window-data: %s" edebug-window-data)
|
||
(let ((window (car edebug-window-data)))
|
||
(if (and window (edebug-window-live-p window)
|
||
(eq (window-buffer) edebug-buffer))
|
||
(progn
|
||
;;(setcar edebug-window-data window)
|
||
;; (edebug-trace "unrestore window start: %s and point"
|
||
;; (cdr edebug-window-data))
|
||
(set-window-start window (cdr edebug-window-data)
|
||
'no-force)
|
||
;; Unrestore edebug-buffer's window-point.
|
||
;; Needed in addition to setting the buffer point
|
||
;; because otherwise quitting doesnt leave point as is.
|
||
;; But this causes point to not be restored other times.
|
||
;; Also, it may not be a visible window.
|
||
;; (set-window-point window edebug-point)
|
||
)))
|
||
;; (edebug-trace "selected-window: %s window-buffer: %s"
|
||
;; (selected-window) (window-buffer))
|
||
;; (edebug-trace "window-data: %s" edebug-window-data)
|
||
|
||
;; Unrestore edebug-buffer's point. Rerestored below.
|
||
;; (goto-char edebug-point) ;; in edebug-buffer
|
||
;; (edebug-trace "unrestore edebug-buffer point: %s" (point))
|
||
;; (sit-for 1)
|
||
)
|
||
;; Since we may be in a save-excursion, in case of quit,
|
||
;; reselect the outside window only.
|
||
;; Only needed if we are not recovering windows??
|
||
(if (edebug-window-live-p edebug-outside-window)
|
||
(select-window edebug-outside-window))
|
||
) ; if edebug-save-windows
|
||
|
||
;; Restore current buffer always, in case application needs it.
|
||
(set-buffer edebug-outside-buffer)
|
||
;; Restore point, and mark.
|
||
;; Needed even if restoring windows because
|
||
;; that doesnt restore point and mark in the current buffer.
|
||
;; But dont restore point if edebug-buffer is same as current buffer.
|
||
(if (not (eq edebug-buffer edebug-outside-buffer))
|
||
(goto-char edebug-outside-point))
|
||
(if (marker-buffer (edebug-mark-marker))
|
||
;; Does zmacs-regions need to be nil while doing set-marker?
|
||
(set-marker (edebug-mark-marker) edebug-outside-mark))
|
||
;; (edebug-trace "done restoring and unrestoring") (sit-for 1)
|
||
) ; unwind-protect
|
||
;; None of the following is done if quit or signal occurs.
|
||
|
||
;; Restore edebug-buffer's outside point.
|
||
;; (edebug-trace "restore edebug-buffer point: %s"
|
||
;; edebug-buffer-outside-point)
|
||
(let ((current-buffer (current-buffer)))
|
||
(set-buffer edebug-buffer)
|
||
(goto-char edebug-buffer-outside-point)
|
||
(set-buffer current-buffer))
|
||
;; ... nothing more.
|
||
))
|
||
|
||
(defvar edebug-number-of-recursions 0)
|
||
;; Number of recursive edits started by edebug.
|
||
;; Should be 0 at the top level.
|
||
|
||
(defvar edebug-recursion-depth 0)
|
||
;; Value of recursion-depth when edebug was called.
|
||
|
||
;; Dynamically declared unbound vars
|
||
(defvar edebug-outside-match-data) ; match data outside of edebug
|
||
(defvar edebug-backtrace-buffer) ; each recursive edit gets its own
|
||
(defvar edebug-inside-windows)
|
||
(defvar edebug-interactive-p)
|
||
|
||
(defvar edebug-outside-map)
|
||
(defvar edebug-outside-standard-output)
|
||
(defvar edebug-outside-standard-input)
|
||
(defvar edebug-outside-last-command-char)
|
||
(defvar edebug-outside-last-command)
|
||
(defvar edebug-outside-this-command)
|
||
(defvar edebug-outside-last-input-char)
|
||
|
||
;; Emacs 18
|
||
(defvar edebug-outside-unread-command-char)
|
||
(defvar unread-command-char -1) ;; Define for lemacs 19.9
|
||
|
||
;; Lucid Emacs
|
||
(defvar edebug-outside-unread-command-event) ;; like unread-command-events
|
||
(defvar unread-command-event nil)
|
||
|
||
;; Emacs 19.
|
||
(defvar edebug-outside-last-command-event)
|
||
(defvar edebug-outside-unread-command-events)
|
||
(defvar edebug-outside-last-input-event)
|
||
(defvar edebug-outside-last-event-frame)
|
||
(defvar edebug-outside-last-nonmenu-event)
|
||
(defvar edebug-outside-track-mouse)
|
||
|
||
;; For Emacs 18, define vars defined by Emacs 19.
|
||
(defvar last-input-event nil)
|
||
(defvar last-command-event nil)
|
||
(defvar unread-command-events nil)
|
||
(defvar last-event-frame nil)
|
||
(defvar last-nonmenu-event nil)
|
||
(defvar track-mouse nil)
|
||
|
||
;; Disable byte compiler warnings about unread-command-char and -event
|
||
;; (maybe works with byte-compile-version 2.22 at least)
|
||
(defvar edebug-unread-command-char-warning)
|
||
(defvar edebug-unread-command-event-warning)
|
||
(eval-when-compile
|
||
(setq edebug-unread-command-char-warning
|
||
(get 'unread-command-char 'byte-obsolete-variable))
|
||
(put 'unread-command-char 'byte-obsolete-variable nil)
|
||
(setq edebug-unread-command-event-warning
|
||
(get 'unread-command-event 'byte-obsolete-variable))
|
||
(put 'unread-command-event 'byte-obsolete-variable nil))
|
||
|
||
(defun edebug-recursive-edit ()
|
||
;; Start up a recursive edit inside of edebug.
|
||
;; The current buffer is the edebug-buffer, which is put into edebug-mode.
|
||
;; Assume that none of the variables below are buffer-local.
|
||
(let ((edebug-buffer-read-only buffer-read-only)
|
||
;; match-data must be done in the outside buffer
|
||
(edebug-outside-match-data
|
||
(save-excursion ; might be unnecessary now??
|
||
(set-buffer edebug-outside-buffer) ; in case match buffer different
|
||
(match-data)))
|
||
|
||
;;(edebug-number-of-recursions (1+ edebug-number-of-recursions))
|
||
(edebug-recursion-depth (recursion-depth))
|
||
edebug-entered ; bind locally to nil
|
||
(edebug-interactive-p nil) ; again non-interactive
|
||
edebug-backtrace-buffer ; each recursive edit gets its own
|
||
;; The window configuration may be saved and restored
|
||
;; during a recursive-edit
|
||
edebug-inside-windows
|
||
|
||
(edebug-outside-map (current-local-map))
|
||
(edebug-outside-standard-output standard-output)
|
||
(edebug-outside-standard-input standard-input)
|
||
|
||
(edebug-outside-last-command-char last-command-char)
|
||
(edebug-outside-last-command last-command)
|
||
(edebug-outside-this-command this-command)
|
||
(edebug-outside-last-input-char last-input-char)
|
||
|
||
(edebug-outside-unread-command-char unread-command-char)
|
||
|
||
(edebug-outside-last-input-event last-input-event)
|
||
(edebug-outside-last-command-event last-command-event)
|
||
(edebug-outside-unread-command-event unread-command-event)
|
||
(edebug-outside-unread-command-events unread-command-events)
|
||
(edebug-outside-last-event-frame last-event-frame)
|
||
(edebug-outside-last-nonmenu-event last-nonmenu-event)
|
||
(edebug-outside-track-mouse track-mouse)
|
||
|
||
;; Declare the following local variables to protect global values.
|
||
;; Make it local, but use global value.
|
||
;; We could set these to the values for previous edebug call.
|
||
(last-command-char last-command-char)
|
||
(last-command last-command)
|
||
(this-command this-command)
|
||
(last-input-char last-input-char)
|
||
|
||
;; Assume no edebug command sets unread-command-char.
|
||
(unread-command-char -1)
|
||
|
||
;; More for Emacs 19
|
||
(last-input-event nil)
|
||
(last-command-event nil)
|
||
(unread-command-event nil) ;; lemacs
|
||
(unread-command-events nil)
|
||
(last-event-frame nil)
|
||
(last-nonmenu-event nil)
|
||
(track-mouse nil)
|
||
|
||
;; Bind again to outside values.
|
||
(debug-on-error edebug-outside-debug-on-error)
|
||
(debug-on-quit edebug-outside-debug-on-quit)
|
||
|
||
;; Save the outside value of defining macro.
|
||
(edebug-outside-defining-kbd-macro defining-kbd-macro)
|
||
;; Don't keep defining a kbd macro.
|
||
(defining-kbd-macro (if edebug-continue-kbd-macro defining-kbd-macro))
|
||
|
||
;; others??
|
||
)
|
||
|
||
(if (fboundp 'zmacs-deactivate-region) ;; for lemacs
|
||
(zmacs-deactivate-region))
|
||
(if (and (eq edebug-execution-mode 'go)
|
||
(not (memq edebug-arg-mode '(after error))))
|
||
(message "Break"))
|
||
|
||
(setq buffer-read-only t)
|
||
(fset 'signal (symbol-function 'edebug-emacs-signal))
|
||
|
||
(edebug-mode)
|
||
(unwind-protect
|
||
(recursive-edit) ; <<<<<<<<<< Recursive edit
|
||
|
||
;; Do the following, even if quit occurs.
|
||
(fset 'signal 'edebug-signal)
|
||
(if edebug-backtrace-buffer
|
||
(kill-buffer edebug-backtrace-buffer))
|
||
;; Could be an option to keep eval display up.
|
||
(if edebug-eval-buffer (kill-buffer edebug-eval-buffer))
|
||
|
||
;; Remember selected-window after recursive-edit.
|
||
;; (setq edebug-inside-window (selected-window))
|
||
|
||
(store-match-data edebug-outside-match-data)
|
||
|
||
;; Recursive edit may have changed buffers,
|
||
;; so set it back before exiting let.
|
||
(if (buffer-name edebug-buffer) ; if it still exists
|
||
(progn
|
||
(set-buffer edebug-buffer)
|
||
(if (memq edebug-execution-mode '(go Go-nonstop))
|
||
(edebug-overlay-arrow))
|
||
(setq buffer-read-only edebug-buffer-read-only)
|
||
(use-local-map edebug-outside-map)
|
||
)
|
||
;; gotta have some other buffer to get its buffer local variables set
|
||
(get-buffer-create " bogus edebug buffer"))
|
||
)))
|
||
|
||
|
||
;;; Display related functions
|
||
;;; ===============================
|
||
|
||
(defun edebug-adjust-window (old-start)
|
||
;; If pos is not visible, adjust current window to fit following context.
|
||
;;; (message "window: %s old-start: %s window-start: %s pos: %s"
|
||
;;; (selected-window) old-start (window-start) (point)) (sit-for 5)
|
||
(if (not (pos-visible-in-window-p))
|
||
(progn
|
||
;; First try old-start
|
||
(if old-start
|
||
(set-window-start (selected-window) old-start))
|
||
(if (not (pos-visible-in-window-p))
|
||
(progn
|
||
;; (message "resetting window start") (sit-for 2)
|
||
(set-window-start
|
||
(selected-window)
|
||
(save-excursion
|
||
(forward-line
|
||
(if (< (point) (window-start)) -1 ; one line before if in back
|
||
(- (/ (window-height) 2)) ; center the line moving forward
|
||
))
|
||
(beginning-of-line)
|
||
(point)))))))
|
||
(window-start))
|
||
|
||
|
||
|
||
(defconst edebug-arrow-alist
|
||
'((Continue-fast . "=")
|
||
(Trace-fast . "-")
|
||
(continue . ">")
|
||
(trace . "->")
|
||
(step . "=>")
|
||
(next . "=>")
|
||
(go . "<>")
|
||
(Go-nonstop . "..") ; not used
|
||
)
|
||
"Association list of arrows for each edebug mode.")
|
||
|
||
(defun edebug-overlay-arrow ()
|
||
;; Set up the overlay arrow at beginning-of-line in current buffer.
|
||
;; The arrow string is derived from edebug-arrow-alist and
|
||
;; edebug-execution-mode.
|
||
(let* ((pos))
|
||
(save-excursion
|
||
(beginning-of-line)
|
||
(setq pos (point)))
|
||
(setq overlay-arrow-string
|
||
(cdr (assq edebug-execution-mode edebug-arrow-alist)))
|
||
(setq overlay-arrow-position (make-marker))
|
||
(set-marker overlay-arrow-position pos (current-buffer))))
|
||
|
||
|
||
(defun edebug-toggle-save-all-windows ()
|
||
"Toggle the saving and restoring of all windows.
|
||
Also, each time you toggle it on, the inside and outside window
|
||
configurations become the same as the current configuration."
|
||
(interactive)
|
||
(setq edebug-save-windows (not edebug-save-windows))
|
||
(if edebug-save-windows
|
||
(setq edebug-inside-windows
|
||
(setq edebug-outside-windows
|
||
(edebug-current-windows
|
||
edebug-save-windows))))
|
||
(message "Window saving is %s for all windows."
|
||
(if edebug-save-windows "on" "off")))
|
||
|
||
(defmacro edebug-changing-windows (&rest body)
|
||
(` (let ((window (selected-window)))
|
||
(setq edebug-inside-windows (edebug-current-windows t))
|
||
(edebug-set-windows edebug-outside-windows)
|
||
(,@ body) ;; Code to change edebug-save-windows
|
||
(setq edebug-outside-windows (edebug-current-windows
|
||
edebug-save-windows))
|
||
;; Problem: what about outside windows that are deleted inside?
|
||
(edebug-set-windows edebug-inside-windows))))
|
||
|
||
(defun edebug-toggle-save-selected-window ()
|
||
"Toggle the saving and restoring of the selected window.
|
||
Also, each time you toggle it on, the inside and outside window
|
||
configurations become the same as the current configuration."
|
||
(interactive)
|
||
(cond
|
||
((eq t edebug-save-windows)
|
||
;; Save all outside windows except the selected one.
|
||
;; Remove (selected-window) from outside-windows.
|
||
(edebug-changing-windows
|
||
(setq edebug-save-windows (delq window (edebug-window-list)))))
|
||
|
||
((memq (selected-window) edebug-save-windows)
|
||
(setq edebug-outside-windows
|
||
(delq (assq (selected-window) edebug-outside-windows)
|
||
edebug-outside-windows))
|
||
(setq edebug-save-windows
|
||
(delq (selected-window) edebug-save-windows)))
|
||
(t ; Save a new window.
|
||
(edebug-changing-windows
|
||
(setq edebug-save-windows (cons window edebug-save-windows)))))
|
||
|
||
(message "Window saving is %s for %s."
|
||
(if (memq (selected-window) edebug-save-windows)
|
||
"on" "off")
|
||
(selected-window)))
|
||
|
||
(defun edebug-toggle-save-windows (arg)
|
||
"Toggle the saving and restoring of windows.
|
||
With prefix, toggle for just the selected window.
|
||
Otherwise, toggle for all windows."
|
||
(interactive "P")
|
||
(if arg
|
||
(edebug-toggle-save-selected-window)
|
||
(edebug-toggle-save-all-windows)))
|
||
|
||
|
||
(defun edebug-where ()
|
||
"Show the debug windows and where we stopped in the program."
|
||
(interactive)
|
||
(if (not edebug-active)
|
||
(error "Edebug is not active"))
|
||
;; Restore the window configuration to what it last was inside.
|
||
;; But it is not always set. - experiment
|
||
;;(if edebug-inside-windows
|
||
;; (edebug-set-windows edebug-inside-windows))
|
||
(edebug-pop-to-buffer edebug-buffer)
|
||
(goto-char edebug-point))
|
||
|
||
(defun edebug-view-outside ()
|
||
"Change to the outside window configuration."
|
||
(interactive)
|
||
(if (not edebug-active)
|
||
(error "Edebug is not active"))
|
||
(setq edebug-inside-windows
|
||
(edebug-current-windows edebug-save-windows))
|
||
(edebug-set-windows edebug-outside-windows)
|
||
(goto-char edebug-outside-point)
|
||
(message "Window configuration outside of Edebug. Return with %s"
|
||
(substitute-command-keys "\\<global-map>\\[edebug-where]")))
|
||
|
||
|
||
(defun edebug-bounce-point (arg)
|
||
"Bounce the point in the outside current buffer.
|
||
If prefix arg is supplied, sit for that many seconds before returning.
|
||
The default is one second."
|
||
(interactive "p")
|
||
(if (not edebug-active)
|
||
(error "Edebug is not active"))
|
||
(save-excursion
|
||
;; If the buffer's currently displayed, avoid set-window-configuration.
|
||
(save-window-excursion
|
||
(edebug-pop-to-buffer edebug-outside-buffer)
|
||
(goto-char edebug-outside-point)
|
||
(message "Current buffer: %s Point: %s Mark: %s"
|
||
(current-buffer) (point)
|
||
(if (marker-buffer (edebug-mark-marker))
|
||
(marker-position (edebug-mark-marker)) "<not set>"))
|
||
(edebug-sit-for arg)
|
||
(edebug-pop-to-buffer edebug-buffer (car edebug-window-data)))))
|
||
|
||
|
||
;; Joe Wells, here is a start at your idea of adding a buffer to the internal
|
||
;; display list. Still need to use this list in edebug-display.
|
||
|
||
'(defvar edebug-display-buffer-list nil
|
||
"List of buffers that edebug will display when it is active.")
|
||
|
||
'(defun edebug-display-buffer (buffer)
|
||
"Toggle display of a buffer inside of edebug."
|
||
(interactive "bBuffer: ")
|
||
(let ((already-displaying (memq buffer edebug-display-buffer-list)))
|
||
(setq edebug-display-buffer-list
|
||
(if already-displaying
|
||
(delq buffer edebug-display-buffer-list)
|
||
(cons buffer edebug-display-buffer-list)))
|
||
(message "Displaying %s %s" buffer
|
||
(if already-displaying "off" "on"))))
|
||
|
||
|
||
;;; Breakpoint related functions
|
||
;;; ===============================
|
||
|
||
(defun edebug-find-stop-point ()
|
||
;; Return (function . index) of the nearest edebug stop point.
|
||
(let* ((edebug-def-name (edebug-form-data-symbol))
|
||
(edebug-data
|
||
(let ((data (get edebug-def-name 'edebug)))
|
||
(if (or (null data) (markerp data))
|
||
(error "%s is not instrumented for Edebug" edebug-def-name))
|
||
data)) ; we could do it automatically, if data is a marker.
|
||
;; pull out parts of edebug-data.
|
||
(edebug-def-mark (car edebug-data))
|
||
;; (edebug-breakpoints (car (cdr edebug-data)))
|
||
|
||
(offset-vector (nth 2 edebug-data))
|
||
(offset (- (save-excursion
|
||
(if (looking-at "[ \t]")
|
||
;; skip backwards until non-whitespace, or bol
|
||
(skip-chars-backward " \t"))
|
||
(point))
|
||
edebug-def-mark))
|
||
len i)
|
||
;; the offsets are in order so we can do a linear search
|
||
(setq len (length offset-vector))
|
||
(setq i 0)
|
||
(while (and (< i len) (> offset (aref offset-vector i)))
|
||
(setq i (1+ i)))
|
||
(if (and (< i len)
|
||
(<= offset (aref offset-vector i)))
|
||
;; return the relevant info
|
||
(cons edebug-def-name i)
|
||
(message "Point is not on an expression in %s."
|
||
edebug-def-name)
|
||
)))
|
||
|
||
|
||
(defun edebug-next-breakpoint ()
|
||
"Move point to the next breakpoint, or first if none past point."
|
||
(interactive)
|
||
(let ((edebug-stop-point (edebug-find-stop-point)))
|
||
(if edebug-stop-point
|
||
(let* ((edebug-def-name (car edebug-stop-point))
|
||
(index (cdr edebug-stop-point))
|
||
(edebug-data (get edebug-def-name 'edebug))
|
||
|
||
;; pull out parts of edebug-data
|
||
(edebug-def-mark (car edebug-data))
|
||
(edebug-breakpoints (car (cdr edebug-data)))
|
||
(offset-vector (nth 2 edebug-data))
|
||
breakpoint)
|
||
(if (not edebug-breakpoints)
|
||
(message "No breakpoints in this function.")
|
||
(let ((breaks edebug-breakpoints))
|
||
(while (and breaks
|
||
(<= (car (car breaks)) index))
|
||
(setq breaks (cdr breaks)))
|
||
(setq breakpoint
|
||
(if breaks
|
||
(car breaks)
|
||
;; goto the first breakpoint
|
||
(car edebug-breakpoints)))
|
||
(goto-char (+ edebug-def-mark
|
||
(aref offset-vector (car breakpoint))))
|
||
|
||
(message (concat (if (nth 2 breakpoint)
|
||
"Temporary " "")
|
||
(if (car (cdr breakpoint))
|
||
(format "Condition: %s"
|
||
(edebug-safe-prin1-to-string
|
||
(car (cdr breakpoint))))
|
||
"")))
|
||
))))))
|
||
|
||
|
||
(defun edebug-modify-breakpoint (flag &optional condition temporary)
|
||
"Modify the breakpoint for the form at point or after it according
|
||
to FLAG: set if t, clear if nil. Then move to that point.
|
||
If CONDITION or TEMPORARY are non-nil, add those attributes to
|
||
the breakpoint. "
|
||
(let ((edebug-stop-point (edebug-find-stop-point)))
|
||
(if edebug-stop-point
|
||
(let* ((edebug-def-name (car edebug-stop-point))
|
||
(index (cdr edebug-stop-point))
|
||
(edebug-data (get edebug-def-name 'edebug))
|
||
|
||
;; pull out parts of edebug-data
|
||
(edebug-def-mark (car edebug-data))
|
||
(edebug-breakpoints (car (cdr edebug-data)))
|
||
(offset-vector (nth 2 edebug-data))
|
||
present)
|
||
;; delete it either way
|
||
(setq present (assq index edebug-breakpoints))
|
||
(setq edebug-breakpoints (delq present edebug-breakpoints))
|
||
(if flag
|
||
(progn
|
||
;; add it to the list and resort
|
||
(setq edebug-breakpoints
|
||
(edebug-sort-alist
|
||
(cons
|
||
(list index condition temporary)
|
||
edebug-breakpoints) '<))
|
||
(if condition
|
||
(message "Breakpoint set in %s with condition: %s"
|
||
edebug-def-name condition)
|
||
(message "Breakpoint set in %s" edebug-def-name)))
|
||
(if present
|
||
(message "Breakpoint unset in %s" edebug-def-name)
|
||
(message "No breakpoint here")))
|
||
|
||
(setcar (cdr edebug-data) edebug-breakpoints)
|
||
(goto-char (+ edebug-def-mark (aref offset-vector index)))
|
||
))))
|
||
|
||
(defun edebug-set-breakpoint (arg)
|
||
"Set the breakpoint of nearest sexp.
|
||
With prefix argument, make it a temporary breakpoint."
|
||
(interactive "P")
|
||
(edebug-modify-breakpoint t nil arg))
|
||
|
||
(defun edebug-unset-breakpoint ()
|
||
"Clear the breakpoint of nearest sexp."
|
||
(interactive)
|
||
(edebug-modify-breakpoint nil))
|
||
|
||
|
||
;; For emacs 18, no read-expression-history
|
||
(defun edebug-set-conditional-breakpoint (arg condition)
|
||
"Set a conditional breakpoint at nearest sexp.
|
||
The condition is evaluated in the outside context.
|
||
With prefix argument, make it a temporary breakpoint."
|
||
;; (interactive "P\nxCondition: ")
|
||
(interactive
|
||
(list
|
||
current-prefix-arg
|
||
;; Edit previous condition as follows, but it is cumbersome:
|
||
(let ((edebug-stop-point (edebug-find-stop-point)))
|
||
(if edebug-stop-point
|
||
(let* ((edebug-def-name (car edebug-stop-point))
|
||
(index (cdr edebug-stop-point))
|
||
(edebug-data (get edebug-def-name 'edebug))
|
||
(edebug-breakpoints (car (cdr edebug-data)))
|
||
(edebug-break-data (assq index edebug-breakpoints))
|
||
(edebug-break-condition (car (cdr edebug-break-data))))
|
||
(read-minibuffer
|
||
(format "Condition in %s: " edebug-def-name)
|
||
(if edebug-break-condition
|
||
(format "%s" edebug-break-condition)
|
||
(format ""))))))))
|
||
(edebug-modify-breakpoint t condition arg))
|
||
|
||
|
||
(defun edebug-set-global-break-condition (expression)
|
||
(interactive (list (read-minibuffer
|
||
"Global Condition: "
|
||
(format "%s" edebug-global-break-condition))))
|
||
(setq edebug-global-break-condition expression))
|
||
|
||
|
||
;;; Mode switching functions
|
||
;;; ===============================
|
||
|
||
(defun edebug-set-mode (mode shortmsg msg)
|
||
;; Set the edebug mode to MODE.
|
||
;; Display SHORTMSG, or MSG if not within edebug.
|
||
(if (eq (1+ edebug-recursion-depth) (recursion-depth))
|
||
(progn
|
||
(setq edebug-execution-mode mode)
|
||
(message shortmsg)
|
||
;; Continue execution
|
||
(exit-recursive-edit))
|
||
;; This is not terribly useful!!
|
||
(setq edebug-next-execution-mode mode)
|
||
(message msg)))
|
||
|
||
|
||
(defalias 'edebug-step-through-mode 'edebug-step-mode)
|
||
|
||
(defun edebug-step-mode ()
|
||
"Proceed to next stop point."
|
||
(interactive)
|
||
(edebug-set-mode 'step "" "Edebug will stop at next stop point."))
|
||
|
||
(defun edebug-next-mode ()
|
||
"Proceed to next `after' stop point."
|
||
(interactive)
|
||
(edebug-set-mode 'next "" "Edebug will stop after next eval."))
|
||
|
||
(defun edebug-go-mode (arg)
|
||
"Go, evaluating until break.
|
||
With prefix ARG, set temporary break at current point and go."
|
||
(interactive "P")
|
||
(if arg
|
||
(edebug-set-breakpoint t))
|
||
(edebug-set-mode 'go "Go..." "Edebug will go until break."))
|
||
|
||
(defun edebug-Go-nonstop-mode ()
|
||
"Go, evaluating without debugging."
|
||
(interactive)
|
||
(edebug-set-mode 'Go-nonstop "Go-Nonstop..."
|
||
"Edebug will not stop at breaks."))
|
||
|
||
|
||
(defun edebug-trace-mode ()
|
||
"Begin trace mode."
|
||
(interactive)
|
||
(edebug-set-mode 'trace "Tracing..." "Edebug will trace with pause."))
|
||
|
||
(defun edebug-Trace-fast-mode ()
|
||
"Trace with no wait at each step."
|
||
(interactive)
|
||
(edebug-set-mode 'Trace-fast
|
||
"Trace fast..." "Edebug will trace without pause."))
|
||
|
||
(defun edebug-continue-mode ()
|
||
"Begin continue mode."
|
||
(interactive)
|
||
(edebug-set-mode 'continue "Continue..."
|
||
"Edebug will pause at breakpoints."))
|
||
|
||
(defun edebug-Continue-fast-mode ()
|
||
"Trace with no wait at each step."
|
||
(interactive)
|
||
(edebug-set-mode 'Continue-fast "Continue fast..."
|
||
"Edebug will stop and go at breakpoints."))
|
||
|
||
;; ------------------------------------------------------------
|
||
;; The following use the mode changing commands and breakpoints.
|
||
|
||
|
||
(defun edebug-goto-here ()
|
||
"Proceed to this stop point."
|
||
(interactive)
|
||
(edebug-go-mode t))
|
||
|
||
|
||
(defun edebug-stop ()
|
||
"Stop execution and do not continue.
|
||
Useful for exiting from trace or continue loop."
|
||
(interactive)
|
||
(message "Stop"))
|
||
|
||
|
||
'(defun edebug-forward ()
|
||
"Proceed to the exit of the next expression to be evaluated."
|
||
(interactive)
|
||
(edebug-set-mode
|
||
'forward "Forward"
|
||
"Edebug will stop after exiting the next expression."))
|
||
|
||
|
||
(defun edebug-forward-sexp (arg)
|
||
"Proceed from the current point to the end of the ARGth sexp ahead.
|
||
If there are not ARG sexps ahead, then do edebug-step-out."
|
||
(interactive "p")
|
||
(condition-case nil
|
||
(let ((parse-sexp-ignore-comments t))
|
||
;; Call forward-sexp repeatedly until done or failure.
|
||
(forward-sexp arg)
|
||
(edebug-go-mode t))
|
||
(error
|
||
(edebug-step-out)
|
||
)))
|
||
|
||
(defun edebug-step-out ()
|
||
"Proceed from the current point to the end of the containing sexp.
|
||
If there is no containing sexp that is not the top level defun,
|
||
go to the end of the last sexp, or if that is the same point, then step."
|
||
(interactive)
|
||
(condition-case nil
|
||
(let ((parse-sexp-ignore-comments t))
|
||
(up-list 1)
|
||
(save-excursion
|
||
;; Is there still a containing expression?
|
||
(up-list 1))
|
||
(edebug-go-mode t))
|
||
(error
|
||
;; At top level - 1, so first check if there are more sexps at this level.
|
||
(let ((start-point (point)))
|
||
;; (up-list 1)
|
||
(down-list -1)
|
||
(if (= (point) start-point)
|
||
(edebug-step-mode) ; No more at this level, so step.
|
||
(edebug-go-mode t)
|
||
)))))
|
||
|
||
(defun edebug-instrument-function (func)
|
||
;; Func should be a function symbol.
|
||
;; Return the function symbol, or nil if not instrumented.
|
||
(let ((func-marker))
|
||
(setq func-marker (get func 'edebug))
|
||
(cond
|
||
((markerp func-marker)
|
||
;; It is uninstrumented, so instrument it.
|
||
(save-excursion
|
||
(set-buffer (marker-buffer func-marker))
|
||
(goto-char func-marker)
|
||
(edebug-eval-top-level-form)
|
||
func))
|
||
((consp func-marker)
|
||
(message "%s is already instrumented." func)
|
||
func)
|
||
(t
|
||
;; We could try harder, e.g. do a tags search.
|
||
(error "Don't know where %s is defined" func)
|
||
nil))))
|
||
|
||
(defun edebug-instrument-callee ()
|
||
"Instrument the definition of the function or macro about to be called.
|
||
Do this when stopped before the form or it will be too late.
|
||
One side effect of using this command is that the next time the
|
||
function or macro is called, Edebug will be called there as well."
|
||
(interactive)
|
||
(if (not (looking-at "\("))
|
||
(error "You must be before a list form")
|
||
(let ((func
|
||
(save-excursion
|
||
(down-list 1)
|
||
(if (looking-at "\(")
|
||
(edebug-form-data-name
|
||
(edebug-get-form-data-entry (point)))
|
||
(read (current-buffer))))))
|
||
(edebug-instrument-function func))))
|
||
|
||
|
||
(defun edebug-step-in ()
|
||
"Step into the definition of the function or macro about to be called.
|
||
This first does `edebug-instrument-callee' to ensure that it is
|
||
instrumented. Then it does `edebug-on-entry' and switches to `go' mode."
|
||
(interactive)
|
||
(let ((func (edebug-instrument-callee)))
|
||
(if func
|
||
(progn
|
||
(edebug-on-entry func 'temp)
|
||
(edebug-go-mode nil)))))
|
||
|
||
(defun edebug-on-entry (function &optional flag)
|
||
"Cause Edebug to stop when FUNCTION is called.
|
||
With prefix argument, make this temporary so it is automatically
|
||
cancelled the first time the function is entered."
|
||
(interactive "aEdebug on entry to: \nP")
|
||
;; Could store this in the edebug data instead.
|
||
(put function 'edebug-on-entry (if flag 'temp t)))
|
||
|
||
(defun cancel-edebug-on-entry (function)
|
||
(interactive "aEdebug on entry to: ")
|
||
(put function 'edebug-on-entry nil))
|
||
|
||
|
||
(if (not (fboundp 'edebug-emacs-debug-on-entry))
|
||
(fset 'edebug-emacs-debug-on-entry (symbol-function 'debug-on-entry)))
|
||
'(fset 'debug-on-entry 'edebug-debug-on-entry) ;; Should we do this?
|
||
;; Also need edebug-cancel-debug-on-entry
|
||
|
||
'(defun edebug-debug-on-entry (function)
|
||
"Request FUNCTION to invoke debugger each time it is called.
|
||
If the user continues, FUNCTION's execution proceeds.
|
||
Works by modifying the definition of FUNCTION,
|
||
which must be written in Lisp, not predefined.
|
||
Use `cancel-debug-on-entry' to cancel the effect of this command.
|
||
Redefining FUNCTION also does that.
|
||
|
||
This version is from Edebug. If the function is instrumented for
|
||
Edebug, it calls `edebug-on-entry'"
|
||
(interactive "aDebug on entry (to function): ")
|
||
(let ((func-data (get function 'edebug)))
|
||
(if (or (null func-data) (markerp func-data))
|
||
(edebug-emacs-debug-on-entry function)
|
||
(edebug-on-entry function))))
|
||
|
||
|
||
(defun edebug-top-level-nonstop ()
|
||
"Set mode to Go-nonstop, and exit to top-level.
|
||
This is useful for exiting even if unwind-protect code may be executed."
|
||
(interactive)
|
||
(setq edebug-execution-mode 'Go-nonstop)
|
||
(top-level))
|
||
|
||
|
||
;;(defun edebug-exit-out ()
|
||
;; "Go until the current function exits."
|
||
;; (interactive)
|
||
;; (edebug-set-mode 'exiting "Exit..."))
|
||
|
||
|
||
;;; -----------------------------------------------------------------
|
||
;;; The following initial mode setting definitions are not used yet.
|
||
|
||
'(defconst edebug-initial-mode-alist
|
||
'((edebug-Continue-fast . Continue-fast)
|
||
(edebug-Trace-fast . Trace-fast)
|
||
(edebug-continue . continue)
|
||
(edebug-trace . trace)
|
||
(edebug-go . go)
|
||
(edebug-step-through . step)
|
||
(edebug-Go-nonstop . Go-nonstop)
|
||
)
|
||
"Association list between commands and the modes they set.")
|
||
|
||
|
||
'(defun edebug-set-initial-mode ()
|
||
"Ask for the initial mode of the enclosing function.
|
||
The mode is requested via the key that would be used to set the mode in
|
||
edebug-mode."
|
||
(interactive)
|
||
(let* ((this-function (edebug-which-function))
|
||
(keymap (if (eq edebug-mode-map (current-local-map))
|
||
edebug-mode-map))
|
||
(old-mode (or (get this-function 'edebug-initial-mode)
|
||
edebug-initial-mode))
|
||
(key (read-key-sequence
|
||
(format
|
||
"Change initial edebug mode for %s from %s (%s) to (enter key): "
|
||
this-function
|
||
old-mode
|
||
(where-is-internal
|
||
(car (rassq old-mode edebug-initial-mode-alist))
|
||
keymap 'firstonly
|
||
))))
|
||
(mode (cdr (assq (key-binding key) edebug-initial-mode-alist)))
|
||
)
|
||
(if (and mode
|
||
(or (get this-function 'edebug-initial-mode)
|
||
(not (eq mode edebug-initial-mode))))
|
||
(progn
|
||
(put this-function 'edebug-initial-mode mode)
|
||
(message "Initial mode for %s is now: %s"
|
||
this-function mode))
|
||
(error "Key must map to one of the mode changing commands")
|
||
)))
|
||
|
||
|
||
;;; Evaluation of expressions
|
||
;;; ===============================
|
||
|
||
(def-edebug-spec edebug-outside-excursion t)
|
||
|
||
(defmacro edebug-outside-excursion (&rest body)
|
||
"Evaluate an expression list in the outside context.
|
||
Return the result of the last expression."
|
||
(` (save-excursion ; of current-buffer
|
||
(if edebug-save-windows
|
||
(progn
|
||
;; After excursion, we will
|
||
;; restore to current window configuration.
|
||
(setq edebug-inside-windows
|
||
(edebug-current-windows edebug-save-windows))
|
||
;; Restore outside windows.
|
||
(edebug-set-windows edebug-outside-windows)))
|
||
|
||
(set-buffer edebug-buffer) ; why?
|
||
;; (use-local-map edebug-outside-map)
|
||
(store-match-data edebug-outside-match-data)
|
||
;; Restore outside context.
|
||
(let (;; (edebug-inside-map (current-local-map)) ;; restore map??
|
||
(last-command-char edebug-outside-last-command-char)
|
||
(last-command-event edebug-outside-last-command-event)
|
||
(last-command edebug-outside-last-command)
|
||
(this-command edebug-outside-this-command)
|
||
(unread-command-char edebug-outside-unread-command-char)
|
||
(unread-command-event edebug-outside-unread-command-event)
|
||
(unread-command-events edebug-outside-unread-command-events)
|
||
(last-input-char edebug-outside-last-input-char)
|
||
(last-input-event edebug-outside-last-input-event)
|
||
(last-event-frame edebug-outside-last-event-frame)
|
||
(last-nonmenu-event edebug-outside-last-nonmenu-event)
|
||
(track-mouse edebug-outside-track-mouse)
|
||
|
||
(overlay-arrow-position edebug-outside-o-a-p)
|
||
(overlay-arrow-string edebug-outside-o-a-s)
|
||
(cursor-in-echo-area edebug-outside-c-i-e-a)
|
||
(standard-output edebug-outside-standard-output)
|
||
(standard-input edebug-outside-standard-input)
|
||
(executing-macro edebug-outside-executing-macro)
|
||
(defining-kbd-macro edebug-outside-defining-kbd-macro)
|
||
)
|
||
(unwind-protect
|
||
(save-excursion ; of edebug-buffer
|
||
(set-buffer edebug-outside-buffer)
|
||
(goto-char edebug-outside-point)
|
||
(if (marker-buffer (edebug-mark-marker))
|
||
(set-marker (edebug-mark-marker) edebug-outside-mark))
|
||
(,@ body))
|
||
|
||
;; Back to edebug-buffer. Restore rest of inside context.
|
||
;; (use-local-map edebug-inside-map)
|
||
(if edebug-save-windows
|
||
;; Restore inside windows.
|
||
(edebug-set-windows edebug-inside-windows))
|
||
)) ; let
|
||
)))
|
||
|
||
(defvar cl-debug-env nil) ;; defined in cl; non-nil when lexical env used.
|
||
|
||
(defun edebug-eval (edebug-expr)
|
||
;; Are there cl lexical variables active?
|
||
(if cl-debug-env
|
||
(eval (cl-macroexpand-all edebug-expr cl-debug-env))
|
||
(eval edebug-expr)))
|
||
|
||
(defun edebug-safe-eval (edebug-expr)
|
||
;; Evaluate EXPR safely.
|
||
;; If there is an error, a string is returned describing the error.
|
||
(condition-case edebug-err
|
||
(edebug-eval edebug-expr)
|
||
(error (edebug-format "%s: %s" ;; could
|
||
(get (car edebug-err) 'error-message)
|
||
(car (cdr edebug-err))))))
|
||
|
||
;;;; Printing
|
||
;;; =========
|
||
;; Replace printing functions.
|
||
|
||
;; obsolete names
|
||
(defalias 'edebug-install-custom-print-funcs 'edebug-install-custom-print)
|
||
(defalias 'edebug-reset-print-funcs 'edebug-uninstall-custom-print)
|
||
(defalias 'edebug-uninstall-custom-print-funcs 'edebug-uninstall-custom-print)
|
||
|
||
(defun edebug-install-custom-print ()
|
||
"Replace print functions used by Edebug with custom versions."
|
||
;; Modifying the custom print functions, or changing print-length,
|
||
;; print-level, print-circle, custom-print-list or custom-print-vector
|
||
;; have immediate effect.
|
||
(interactive)
|
||
(require 'cust-print)
|
||
(defalias 'edebug-prin1 'custom-prin1)
|
||
(defalias 'edebug-print 'custom-print)
|
||
(defalias 'edebug-prin1-to-string 'custom-prin1-to-string)
|
||
(defalias 'edebug-format 'custom-format)
|
||
(defalias 'edebug-message 'custom-message)
|
||
"Installed")
|
||
|
||
(eval-and-compile
|
||
(defun edebug-uninstall-custom-print ()
|
||
"Replace edebug custom print functions with internal versions."
|
||
(interactive)
|
||
(defalias 'edebug-prin1 'prin1)
|
||
(defalias 'edebug-print 'print)
|
||
(defalias 'edebug-prin1-to-string 'prin1-to-string)
|
||
(defalias 'edebug-format 'format)
|
||
(defalias 'edebug-message 'message)
|
||
"Uninstalled")
|
||
|
||
;; Default print functions are the same as Emacs'.
|
||
(edebug-uninstall-custom-print))
|
||
|
||
|
||
(defun edebug-report-error (edebug-value)
|
||
;; Print an error message like command level does.
|
||
;; This also prints the error name if it has no error-message.
|
||
(message "%s: %s"
|
||
(or (get (car edebug-value) 'error-message)
|
||
(format "peculiar error (%s)" (car edebug-value)))
|
||
(mapconcat (function (lambda (edebug-arg)
|
||
;; continuing after an error may
|
||
;; complain about edebug-arg. why??
|
||
(prin1-to-string edebug-arg)))
|
||
(cdr edebug-value) ", ")))
|
||
|
||
;; Define here in case they are not already defined.
|
||
(defvar print-level nil)
|
||
(defvar print-circle nil)
|
||
(defvar print-readably) ;; defined by lemacs
|
||
;; Alternatively, we could change the definition of
|
||
;; edebug-save-prin1-to-string to only use these if defined.
|
||
|
||
(defun edebug-safe-prin1-to-string (value)
|
||
(let ((print-escape-newlines t)
|
||
(print-length (or edebug-print-length print-length))
|
||
(print-level (or edebug-print-level print-level))
|
||
(print-circle (or edebug-print-circle print-circle))
|
||
(print-readably nil)) ;; lemacs uses this.
|
||
(edebug-prin1-to-string value)))
|
||
|
||
(defun edebug-compute-previous-result (edebug-previous-value)
|
||
(setq edebug-previous-result
|
||
(if (and (numberp edebug-previous-value)
|
||
(< edebug-previous-value 256)
|
||
(>= edebug-previous-value 0))
|
||
(format "Result: %s = %s" edebug-previous-value
|
||
(single-key-description edebug-previous-value))
|
||
(if edebug-unwrap-results
|
||
(setq edebug-previous-value
|
||
(edebug-unwrap* edebug-previous-value)))
|
||
(concat "Result: "
|
||
(edebug-safe-prin1-to-string edebug-previous-value)))))
|
||
|
||
(defun edebug-previous-result ()
|
||
"Print the previous result."
|
||
(interactive)
|
||
(message "%s" edebug-previous-result))
|
||
|
||
;;;; Read, Eval and Print
|
||
;;; =====================
|
||
|
||
(defun edebug-eval-expression (edebug-expr)
|
||
"Evaluate an expression in the outside environment.
|
||
If interactive, prompt for the expression.
|
||
Print result in minibuffer."
|
||
(interactive "xEval: ")
|
||
(princ
|
||
(edebug-outside-excursion
|
||
(setq values (cons (edebug-eval edebug-expr) values))
|
||
(edebug-safe-prin1-to-string (car values)))))
|
||
|
||
(defun edebug-eval-last-sexp ()
|
||
"Evaluate sexp before point in the outside environment;
|
||
print value in minibuffer."
|
||
(interactive)
|
||
(edebug-eval-expression (edebug-last-sexp)))
|
||
|
||
(defun edebug-eval-print-last-sexp ()
|
||
"Evaluate sexp before point in the outside environment;
|
||
print value into current buffer."
|
||
(interactive)
|
||
(let* ((edebug-form (edebug-last-sexp))
|
||
(edebug-result-string
|
||
(edebug-outside-excursion
|
||
(edebug-safe-prin1-to-string (edebug-safe-eval edebug-form))))
|
||
(standard-output (current-buffer)))
|
||
(princ "\n")
|
||
;; princ the string to get rid of quotes.
|
||
(princ edebug-result-string)
|
||
(princ "\n")
|
||
))
|
||
|
||
|
||
;;;; Edebug Minor Mode
|
||
;;; ===============================
|
||
|
||
;; Global GUD bindings for all emacs-lisp-mode buffers.
|
||
(define-key emacs-lisp-mode-map "\C-x\C-a\C-s" 'edebug-step-mode)
|
||
(define-key emacs-lisp-mode-map "\C-x\C-a\C-n" 'edebug-next-mode)
|
||
(define-key emacs-lisp-mode-map "\C-x\C-a\C-c" 'edebug-go-mode)
|
||
(define-key emacs-lisp-mode-map "\C-x\C-a\C-l" 'edebug-where)
|
||
|
||
|
||
(defvar edebug-mode-map nil)
|
||
(if edebug-mode-map
|
||
nil
|
||
(progn
|
||
(setq edebug-mode-map (copy-keymap emacs-lisp-mode-map))
|
||
;; control
|
||
(define-key edebug-mode-map " " 'edebug-step-mode)
|
||
(define-key edebug-mode-map "n" 'edebug-next-mode)
|
||
(define-key edebug-mode-map "g" 'edebug-go-mode)
|
||
(define-key edebug-mode-map "G" 'edebug-Go-nonstop-mode)
|
||
(define-key edebug-mode-map "t" 'edebug-trace-mode)
|
||
(define-key edebug-mode-map "T" 'edebug-Trace-fast-mode)
|
||
(define-key edebug-mode-map "c" 'edebug-continue-mode)
|
||
(define-key edebug-mode-map "C" 'edebug-Continue-fast-mode)
|
||
|
||
;;(define-key edebug-mode-map "f" 'edebug-forward) not implemented
|
||
(define-key edebug-mode-map "f" 'edebug-forward-sexp)
|
||
(define-key edebug-mode-map "h" 'edebug-goto-here)
|
||
|
||
(define-key edebug-mode-map "I" 'edebug-instrument-callee)
|
||
(define-key edebug-mode-map "i" 'edebug-step-in)
|
||
(define-key edebug-mode-map "o" 'edebug-step-out)
|
||
|
||
;; quitting and stopping
|
||
(define-key edebug-mode-map "q" 'top-level)
|
||
(define-key edebug-mode-map "Q" 'edebug-top-level-nonstop)
|
||
(define-key edebug-mode-map "a" 'abort-recursive-edit)
|
||
(define-key edebug-mode-map "S" 'edebug-stop)
|
||
|
||
;; breakpoints
|
||
(define-key edebug-mode-map "b" 'edebug-set-breakpoint)
|
||
(define-key edebug-mode-map "u" 'edebug-unset-breakpoint)
|
||
(define-key edebug-mode-map "B" 'edebug-next-breakpoint)
|
||
(define-key edebug-mode-map "x" 'edebug-set-conditional-breakpoint)
|
||
(define-key edebug-mode-map "X" 'edebug-set-global-break-condition)
|
||
|
||
;; evaluation
|
||
(define-key edebug-mode-map "r" 'edebug-previous-result)
|
||
(define-key edebug-mode-map "e" 'edebug-eval-expression)
|
||
(define-key edebug-mode-map "\C-x\C-e" 'edebug-eval-last-sexp)
|
||
(define-key edebug-mode-map "E" 'edebug-visit-eval-list)
|
||
|
||
;; views
|
||
(define-key edebug-mode-map "w" 'edebug-where)
|
||
(define-key edebug-mode-map "v" 'edebug-view-outside) ;; maybe obsolete??
|
||
(define-key edebug-mode-map "p" 'edebug-bounce-point)
|
||
(define-key edebug-mode-map "P" 'edebug-view-outside) ;; same as v
|
||
(define-key edebug-mode-map "W" 'edebug-toggle-save-windows)
|
||
|
||
;; misc
|
||
(define-key edebug-mode-map "?" 'edebug-help)
|
||
(define-key edebug-mode-map "d" 'edebug-backtrace)
|
||
|
||
(define-key edebug-mode-map "-" 'negative-argument)
|
||
|
||
;; statistics
|
||
(define-key edebug-mode-map "=" 'edebug-temp-display-freq-count)
|
||
|
||
;; GUD bindings
|
||
(define-key edebug-mode-map "\C-c\C-s" 'edebug-step-mode)
|
||
(define-key edebug-mode-map "\C-c\C-n" 'edebug-next-mode)
|
||
(define-key edebug-mode-map "\C-c\C-c" 'edebug-go-mode)
|
||
|
||
(define-key edebug-mode-map "\C-x " 'edebug-set-breakpoint)
|
||
(define-key edebug-mode-map "\C-c\C-d" 'edebug-unset-breakpoint)
|
||
(define-key edebug-mode-map "\C-c\C-t"
|
||
(function (lambda () (edebug-set-breakpoint t))))
|
||
(define-key edebug-mode-map "\C-c\C-l" 'edebug-where)
|
||
))
|
||
|
||
;; Autoloading these global bindings doesn't make sense because
|
||
;; they cannot be used anyway unless Edebug is already loaded and active.
|
||
|
||
(defvar global-edebug-prefix "\^XX"
|
||
"Prefix key for global edebug commands, available from any buffer.")
|
||
|
||
(defvar global-edebug-map nil
|
||
"Global map of edebug commands, available from any buffer.")
|
||
|
||
(if global-edebug-map
|
||
nil
|
||
(setq global-edebug-map (make-sparse-keymap))
|
||
|
||
(global-unset-key global-edebug-prefix)
|
||
(global-set-key global-edebug-prefix global-edebug-map)
|
||
|
||
(define-key global-edebug-map " " 'edebug-step-mode)
|
||
(define-key global-edebug-map "g" 'edebug-go-mode)
|
||
(define-key global-edebug-map "G" 'edebug-Go-nonstop-mode)
|
||
(define-key global-edebug-map "t" 'edebug-trace-mode)
|
||
(define-key global-edebug-map "T" 'edebug-Trace-fast-mode)
|
||
(define-key global-edebug-map "c" 'edebug-continue-mode)
|
||
(define-key global-edebug-map "C" 'edebug-Continue-fast-mode)
|
||
|
||
;; breakpoints
|
||
(define-key global-edebug-map "b" 'edebug-set-breakpoint)
|
||
(define-key global-edebug-map "u" 'edebug-unset-breakpoint)
|
||
(define-key global-edebug-map "x" 'edebug-set-conditional-breakpoint)
|
||
(define-key global-edebug-map "X" 'edebug-set-global-break-condition)
|
||
|
||
;; views
|
||
(define-key global-edebug-map "w" 'edebug-where)
|
||
(define-key global-edebug-map "W" 'edebug-toggle-save-windows)
|
||
|
||
;; quitting
|
||
(define-key global-edebug-map "q" 'top-level)
|
||
(define-key global-edebug-map "Q" 'edebug-top-level-nonstop)
|
||
(define-key global-edebug-map "a" 'abort-recursive-edit)
|
||
|
||
;; statistics
|
||
(define-key global-edebug-map "=" 'edebug-display-freq-count)
|
||
)
|
||
|
||
(defun edebug-help ()
|
||
(interactive)
|
||
(describe-function 'edebug-mode))
|
||
|
||
(defun edebug-mode ()
|
||
"Mode for Emacs Lisp buffers while in Edebug.
|
||
|
||
In addition to all Emacs Lisp commands (except those that modify the
|
||
buffer) there are local and global key bindings to several Edebug
|
||
specific commands. E.g. `edebug-step-mode' is bound to \\[edebug-step-mode]
|
||
in the Edebug buffer and \\<global-map>\\[edebug-step-mode] in any buffer.
|
||
|
||
Also see bindings for the eval list buffer, *edebug*.
|
||
|
||
The edebug buffer commands:
|
||
\\{edebug-mode-map}
|
||
|
||
Global commands prefixed by `global-edebug-prefix':
|
||
\\{global-edebug-map}
|
||
|
||
Options:
|
||
edebug-setup-hook
|
||
edebug-all-defs
|
||
edebug-all-forms
|
||
edebug-save-windows
|
||
edebug-save-displayed-buffer-points
|
||
edebug-initial-mode
|
||
edebug-trace
|
||
edebug-test-coverage
|
||
edebug-continue-kbd-macro
|
||
edebug-print-length
|
||
edebug-print-level
|
||
edebug-print-circle
|
||
edebug-on-error
|
||
edebug-on-quit
|
||
edebug-on-signal
|
||
edebug-unwrap-results
|
||
edebug-global-break-condition
|
||
"
|
||
(use-local-map edebug-mode-map))
|
||
|
||
|
||
;;;; edebug eval list mode
|
||
;;; ===============================================
|
||
;; A list of expressions and their evaluations is displayed in *edebug*.
|
||
|
||
(defun edebug-eval-result-list ()
|
||
"Return a list of evaluations of edebug-eval-list"
|
||
;; Assumes in outside environment.
|
||
(mapcar 'edebug-safe-eval edebug-eval-list))
|
||
|
||
(defun edebug-eval-display-list (edebug-eval-result-list)
|
||
;; Assumes edebug-eval-buffer exists.
|
||
(let ((edebug-eval-list-temp edebug-eval-list)
|
||
(standard-output edebug-eval-buffer)
|
||
(edebug-comment-line
|
||
(format ";%s\n" (make-string (- (window-width) 2) ?-))))
|
||
(set-buffer edebug-eval-buffer)
|
||
(erase-buffer)
|
||
(while edebug-eval-list-temp
|
||
(prin1 (car edebug-eval-list-temp)) (terpri)
|
||
(prin1 (car edebug-eval-result-list)) (terpri)
|
||
(princ edebug-comment-line)
|
||
(setq edebug-eval-list-temp (cdr edebug-eval-list-temp))
|
||
(setq edebug-eval-result-list (cdr edebug-eval-result-list)))
|
||
(edebug-pop-to-buffer edebug-eval-buffer)
|
||
))
|
||
|
||
(defun edebug-create-eval-buffer ()
|
||
(if (not (and edebug-eval-buffer (buffer-name edebug-eval-buffer)))
|
||
(progn
|
||
(set-buffer (setq edebug-eval-buffer (get-buffer-create "*edebug*")))
|
||
(edebug-eval-mode))))
|
||
|
||
;; Should generalize this to be callable outside of edebug
|
||
;; with calls in user functions, e.g. (edebug-eval-display)
|
||
|
||
(defun edebug-eval-display (edebug-eval-result-list)
|
||
"Display expressions and evaluations in EVAL-LIST.
|
||
It modifies the context by popping up the eval display."
|
||
(if edebug-eval-result-list
|
||
(progn
|
||
(edebug-create-eval-buffer)
|
||
(edebug-eval-display-list edebug-eval-result-list)
|
||
)))
|
||
|
||
(defun edebug-eval-redisplay ()
|
||
"Redisplay eval list in outside environment.
|
||
May only be called from within edebug-recursive-edit."
|
||
(edebug-create-eval-buffer)
|
||
(edebug-outside-excursion
|
||
(edebug-eval-display-list (edebug-eval-result-list))
|
||
))
|
||
|
||
(defun edebug-visit-eval-list ()
|
||
(interactive)
|
||
(edebug-eval-redisplay)
|
||
(edebug-pop-to-buffer edebug-eval-buffer))
|
||
|
||
|
||
(defun edebug-update-eval-list ()
|
||
"Replace the evaluation list with the sexps now in the eval buffer."
|
||
(interactive)
|
||
(let ((starting-point (point))
|
||
new-list)
|
||
(goto-char (point-min))
|
||
;; get the first expression
|
||
(edebug-skip-whitespace)
|
||
(if (not (eobp))
|
||
(progn
|
||
(forward-sexp 1)
|
||
(setq new-list (cons (edebug-last-sexp) new-list))))
|
||
|
||
(while (re-search-forward "^;" nil t)
|
||
(forward-line 1)
|
||
(skip-chars-forward " \t\n\r")
|
||
(if (and (/= ?\; (following-char))
|
||
(not (eobp)))
|
||
(progn
|
||
(forward-sexp 1)
|
||
(setq new-list (cons (edebug-last-sexp) new-list)))))
|
||
|
||
(setq edebug-eval-list (nreverse new-list))
|
||
(edebug-eval-redisplay)
|
||
(goto-char starting-point)))
|
||
|
||
|
||
(defun edebug-delete-eval-item ()
|
||
"Delete the item under point and redisplay."
|
||
;; could add arg to do repeatedly
|
||
(interactive)
|
||
(if (re-search-backward "^;" nil 'nofail)
|
||
(forward-line 1))
|
||
(delete-region
|
||
(point) (progn (re-search-forward "^;" nil 'nofail)
|
||
(beginning-of-line)
|
||
(point)))
|
||
(edebug-update-eval-list))
|
||
|
||
|
||
|
||
(defvar edebug-eval-mode-map nil
|
||
"Keymap for edebug-eval-mode. Superset of lisp-interaction-mode.")
|
||
|
||
(if edebug-eval-mode-map
|
||
nil
|
||
(setq edebug-eval-mode-map (copy-keymap lisp-interaction-mode-map))
|
||
|
||
(define-key edebug-eval-mode-map "\C-c\C-w" 'edebug-where)
|
||
(define-key edebug-eval-mode-map "\C-c\C-d" 'edebug-delete-eval-item)
|
||
(define-key edebug-eval-mode-map "\C-c\C-u" 'edebug-update-eval-list)
|
||
(define-key edebug-eval-mode-map "\C-x\C-e" 'edebug-eval-last-sexp)
|
||
(define-key edebug-eval-mode-map "\C-j" 'edebug-eval-print-last-sexp)
|
||
)
|
||
|
||
|
||
(defun edebug-eval-mode ()
|
||
"Mode for evaluation list buffer while in Edebug.
|
||
|
||
In addition to all Interactive Emacs Lisp commands there are local and
|
||
global key bindings to several Edebug specific commands. E.g.
|
||
`edebug-step-mode' is bound to \\[edebug-step-mode] in the Edebug
|
||
buffer and \\<global-map>\\[edebug-step-mode] in any buffer.
|
||
|
||
Eval list buffer commands:
|
||
\\{edebug-eval-mode-map}
|
||
|
||
Global commands prefixed by global-edebug-prefix:
|
||
\\{global-edebug-map}
|
||
"
|
||
(lisp-interaction-mode)
|
||
(setq major-mode 'edebug-eval-mode)
|
||
(setq mode-name "Edebug-Eval")
|
||
(use-local-map edebug-eval-mode-map))
|
||
|
||
|
||
;;;; Interface with standard debugger.
|
||
;;; ========================================
|
||
|
||
;; (setq debugger 'edebug) ; to use the edebug debugger
|
||
;; (setq debugger 'debug) ; use the standard debugger
|
||
|
||
;; Note that debug and its utilities must be byte-compiled to work,
|
||
;; since they depend on the backtrace looking a certain way. But
|
||
;; edebug is not dependent on this, yet.
|
||
|
||
(defun edebug (&optional edebug-arg-mode &rest debugger-args)
|
||
"Replacement for debug.
|
||
If we are running an edebugged function,
|
||
show where we last were. Otherwise call debug normally."
|
||
;; (message "entered: %s depth: %s edebug-recursion-depth: %s"
|
||
;; edebug-entered (recursion-depth) edebug-recursion-depth) (sit-for 1)
|
||
(if (and edebug-entered ; anything active?
|
||
(eq (recursion-depth) edebug-recursion-depth))
|
||
(let (;; Where were we before the error occurred?
|
||
(edebug-offset-index (car edebug-offset-indices))
|
||
;; Bind variables required by edebug-display
|
||
(edebug-value (car debugger-args))
|
||
edebug-breakpoints
|
||
edebug-break-data
|
||
edebug-break-condition
|
||
edebug-global-break
|
||
(edebug-break (null edebug-arg-mode)) ;; if called explicitly
|
||
)
|
||
(edebug-display)
|
||
(if (eq edebug-arg-mode 'error)
|
||
nil
|
||
edebug-value))
|
||
|
||
;; Otherwise call debug normally.
|
||
;; Still need to remove extraneous edebug calls from stack.
|
||
(apply 'debug edebug-arg-mode debugger-args)
|
||
))
|
||
|
||
|
||
(defun edebug-backtrace ()
|
||
"Display a non-working backtrace. Better than nothing..."
|
||
(interactive)
|
||
(if (or (not edebug-backtrace-buffer)
|
||
(null (buffer-name edebug-backtrace-buffer)))
|
||
(setq edebug-backtrace-buffer
|
||
(generate-new-buffer "*Backtrace*"))
|
||
;; else, could just display edebug-backtrace-buffer
|
||
)
|
||
(with-output-to-temp-buffer (buffer-name edebug-backtrace-buffer)
|
||
(setq edebug-backtrace-buffer standard-output)
|
||
(let ((print-escape-newlines t)
|
||
(print-length 50)
|
||
last-ok-point)
|
||
(backtrace)
|
||
|
||
;; Clean up the backtrace.
|
||
;; Not quite right for current edebug scheme.
|
||
(set-buffer edebug-backtrace-buffer)
|
||
(setq truncate-lines t)
|
||
(goto-char (point-min))
|
||
(setq last-ok-point (point))
|
||
(if t (progn
|
||
|
||
;; Delete interspersed edebug internals.
|
||
(while (re-search-forward "^ \(?edebug" nil t)
|
||
(beginning-of-line)
|
||
(cond
|
||
((looking-at "^ \(edebug-after")
|
||
;; Previous lines may contain code, so just delete this line
|
||
(setq last-ok-point (point))
|
||
(forward-line 1)
|
||
(delete-region last-ok-point (point)))
|
||
|
||
((looking-at "^ edebug")
|
||
(forward-line 1)
|
||
(delete-region last-ok-point (point))
|
||
)))
|
||
)))))
|
||
|
||
|
||
;;;; Trace display
|
||
;; ===============================
|
||
|
||
(defun edebug-trace-display (buf-name fmt &rest args)
|
||
"In buffer BUF-NAME, display FMT and ARGS at the end and make it visible.
|
||
The buffer is created if it does not exist.
|
||
You must include newlines in FMT to break lines, but one newline is appended."
|
||
;; e.g.
|
||
;; (edebug-trace-display "*trace-point*"
|
||
;; "saving: point = %s window-start = %s"
|
||
;; (point) (window-start))
|
||
(let* ((selected-window (selected-window))
|
||
(buffer (get-buffer-create buf-name))
|
||
buf-window)
|
||
;; (message "before pop-to-buffer") (sit-for 1)
|
||
(edebug-pop-to-buffer buffer)
|
||
(setq truncate-lines t)
|
||
(setq buf-window (selected-window))
|
||
(goto-char (point-max))
|
||
(insert (apply 'edebug-format fmt args) "\n")
|
||
;; Make it visible.
|
||
(vertical-motion (- 1 (window-height)))
|
||
(set-window-start buf-window (point))
|
||
(goto-char (point-max))
|
||
;; (set-window-point buf-window (point))
|
||
;; (edebug-sit-for 0)
|
||
(bury-buffer buffer)
|
||
(select-window selected-window))
|
||
buf-name)
|
||
|
||
|
||
(defun edebug-trace (fmt &rest args)
|
||
"Convenience call to edebug-trace-display using edebug-trace-buffer"
|
||
(apply 'edebug-trace-display edebug-trace-buffer fmt args))
|
||
|
||
|
||
;;;; Frequency count and coverage
|
||
;;; ==============================
|
||
|
||
(defun edebug-display-freq-count ()
|
||
"Display the frequency count data for each line of the current
|
||
definition. The frequency counts are inserted as comment lines after
|
||
each line, and you can undo all insertions with one `undo' command.
|
||
|
||
The counts are inserted starting under the `(' before an expression
|
||
or the `)' after an expression, or on the last char of a symbol.
|
||
The counts are only displayed when they differ from previous counts on
|
||
the same line.
|
||
|
||
If coverage is being tested, whenever all known results of an expression
|
||
are `eq', the char `=' will be appended after the count
|
||
for that expression. Note that this is always the case for an
|
||
expression only evaluated once.
|
||
|
||
To clear the frequency count and coverage data for a definition,
|
||
reinstrument it."
|
||
(interactive)
|
||
(let* ((function (edebug-form-data-symbol))
|
||
(counts (get function 'edebug-freq-count))
|
||
(coverages (get function 'edebug-coverage))
|
||
(data (get function 'edebug))
|
||
(def-mark (car data)) ; mark at def start
|
||
(edebug-points (nth 2 data))
|
||
(i (1- (length edebug-points)))
|
||
(last-index)
|
||
(first-index)
|
||
(start-of-line)
|
||
(start-of-count-line)
|
||
(last-count)
|
||
)
|
||
(save-excursion
|
||
;; Traverse in reverse order so offsets are correct.
|
||
(while (<= 0 i)
|
||
;; Start at last expression in line.
|
||
(goto-char (+ def-mark (aref edebug-points i)))
|
||
(beginning-of-line)
|
||
(setq start-of-line (- (point) def-mark)
|
||
last-index i)
|
||
|
||
;; Find all indexes on same line.
|
||
(while (and (<= 0 (setq i (1- i)))
|
||
(<= start-of-line (aref edebug-points i))))
|
||
;; Insert all the indices for this line.
|
||
(forward-line 1)
|
||
(setq start-of-count-line (point)
|
||
first-index i ; really last index for line above this one.
|
||
last-count -1) ; cause first count to always appear.
|
||
(insert ";#")
|
||
;; i == first-index still
|
||
(while (<= (setq i (1+ i)) last-index)
|
||
(let ((count (aref counts i))
|
||
(coverage (aref coverages i))
|
||
(col (save-excursion
|
||
(goto-char (+ (aref edebug-points i) def-mark))
|
||
(- (current-column)
|
||
(if (= ?\( (following-char)) 0 1)))))
|
||
(insert (make-string
|
||
(max 0 (- col (- (point) start-of-count-line))) ?\ )
|
||
(if (and (< 0 count)
|
||
(not (memq coverage
|
||
'(unknown ok-coverage))))
|
||
"=" "")
|
||
(if (= count last-count) "" (int-to-string count))
|
||
" ")
|
||
(setq last-count count)))
|
||
(insert "\n")
|
||
(setq i first-index)))))
|
||
|
||
(defun edebug-temp-display-freq-count ()
|
||
"Temporarily display the frequency count data for the current definition.
|
||
It is removed when you hit any char."
|
||
;; This seems not to work with Emacs 18.59. It undoes too far.
|
||
(interactive)
|
||
(let ((buffer-read-only nil))
|
||
(undo-boundary)
|
||
(edebug-display-freq-count)
|
||
(setq unread-command-char (read-char))
|
||
(undo)))
|
||
|
||
|
||
;;;; Menus
|
||
;;;=========
|
||
|
||
(defun edebug-toggle (variable)
|
||
(set variable (not (eval variable)))
|
||
(message "%s: %s" variable (eval variable)))
|
||
|
||
;; We have to require easymenu (even for Emacs 18) just so
|
||
;; the easy-menu-define macro call is compiled correctly.
|
||
(require 'easymenu)
|
||
|
||
(defconst edebug-mode-menus
|
||
'("Edebug"
|
||
"----"
|
||
["Stop" edebug-stop t]
|
||
["Step" edebug-step-mode t]
|
||
["Next" edebug-next-mode t]
|
||
["Trace" edebug-trace-mode t]
|
||
["Trace Fast" edebug-Trace-fast-mode t]
|
||
["Continue" edebug-continue-mode t]
|
||
["Continue Fast" edebug-Continue-fast-mode t]
|
||
["Go" edebug-go-mode t]
|
||
["Go Nonstop" edebug-Go-nonstop-mode t]
|
||
"----"
|
||
["Help" edebug-help t]
|
||
["Abort" abort-recursive-edit t]
|
||
["Quit to Top Level" top-level t]
|
||
["Quit Nonstop" edebug-top-level-nonstop t]
|
||
"----"
|
||
("Jumps"
|
||
["Forward Sexp" edebug-forward-sexp t]
|
||
["Step In" edebug-step-in t]
|
||
["Step Out" edebug-step-out t]
|
||
["Goto Here" edebug-goto-here t])
|
||
|
||
("Breaks"
|
||
["Set Breakpoint" edebug-set-breakpoint t]
|
||
["Unset Breakpoint" edebug-unset-breakpoint t]
|
||
["Set Conditional Breakpoint" edebug-set-conditional-breakpoint t]
|
||
["Set Global Break Condition" edebug-set-global-break-condition t]
|
||
["Show Next Breakpoint" edebug-next-breakpoint t])
|
||
|
||
("Views"
|
||
["Where am I?" edebug-where t]
|
||
["Bounce to Current Point" edebug-bounce-point t]
|
||
["View Outside Windows" edebug-view-outside t]
|
||
["Previous Result" edebug-previous-result t]
|
||
["Show Backtrace" edebug-backtrace t]
|
||
["Display Freq Count" edebug-display-freq-count t])
|
||
|
||
("Eval"
|
||
["Expression" edebug-eval-expression t]
|
||
["Last Sexp" edebug-eval-last-sexp t]
|
||
["Visit Eval List" edebug-visit-eval-list t])
|
||
|
||
("Options"
|
||
["Edebug All Defs" edebug-all-defs t]
|
||
["Edebug All Forms" edebug-all-forms t]
|
||
"----"
|
||
["Toggle Tracing" (edebug-toggle 'edebug-trace) t]
|
||
["Toggle Coverage Testing" (edebug-toggle 'edebug-test-coverage) t]
|
||
["Toggle Window Saving" edebug-toggle-save-windows t]
|
||
["Toggle Point Saving"
|
||
(edebug-toggle 'edebug-save-displayed-buffer-points) t]
|
||
))
|
||
"Lemacs style menus for Edebug.")
|
||
|
||
|
||
;;;; Emacs version specific code
|
||
;;;=============================
|
||
;;; The default for all above is Emacs 18, because it is easier to compile
|
||
;;; Emacs 18 code in Emacs 19 than vice versa. This default will
|
||
;;; change once most people are using Emacs 19 or derivatives.
|
||
|
||
;; Epoch specific code is in a separate file: edebug-epoch.el.
|
||
|
||
;; The byte-compiler will complain about changes in number of arguments
|
||
;; to functions like mark and read-from-minibuffer. These warnings
|
||
;; may be ignored because the right call should always be made.
|
||
|
||
(defun edebug-emacs19-specific ()
|
||
|
||
(defalias 'edebug-window-live-p 'window-live-p)
|
||
|
||
;; Mark takes an argument in Emacs 19.
|
||
(defun edebug-mark ()
|
||
(mark t));; Does this work for lemacs too?
|
||
|
||
;; Use minibuffer-history when reading expressions.
|
||
(defvar read-expression-history) ;; hush bytecomp
|
||
(defvar read-expression-map)
|
||
|
||
(defun edebug-set-conditional-breakpoint (arg condition)
|
||
"Set a conditional breakpoint at nearest sexp.
|
||
The condition is evaluated in the outside context.
|
||
With prefix argument, make it a temporary breakpoint."
|
||
;; (interactive "P\nxCondition: ")
|
||
(interactive
|
||
(list
|
||
current-prefix-arg
|
||
;; Read condition as follows; getting previous condition is cumbersome:
|
||
(let ((edebug-stop-point (edebug-find-stop-point)))
|
||
(if edebug-stop-point
|
||
(let* ((edebug-def-name (car edebug-stop-point))
|
||
(index (cdr edebug-stop-point))
|
||
(edebug-data (get edebug-def-name 'edebug))
|
||
(edebug-breakpoints (car (cdr edebug-data)))
|
||
(edebug-break-data (assq index edebug-breakpoints))
|
||
(edebug-break-condition (car (cdr edebug-break-data)))
|
||
(edebug-expression-history
|
||
;; Prepend the current condition, if any.
|
||
(if edebug-break-condition
|
||
(cons edebug-break-condition read-expression-history)
|
||
read-expression-history)))
|
||
(prog1
|
||
(read-from-minibuffer
|
||
"Condition: " nil read-expression-map t
|
||
'edebug-expression-history)
|
||
(setq read-expression-history edebug-expression-history)
|
||
))))))
|
||
(edebug-modify-breakpoint t condition arg))
|
||
|
||
(defun edebug-eval-expression (edebug-expr)
|
||
"Evaluate an expression in the outside environment.
|
||
If interactive, prompt for the expression.
|
||
Print result in minibuffer."
|
||
(interactive (list (read-from-minibuffer
|
||
"Eval: " nil read-expression-map t
|
||
'read-expression-history)))
|
||
(princ
|
||
(edebug-outside-excursion
|
||
(setq values (cons (edebug-eval edebug-expr) values))
|
||
(edebug-safe-prin1-to-string (car values)))))
|
||
|
||
(easy-menu-define 'edebug edebug-mode-map "Edebug menus" edebug-mode-menus)
|
||
)
|
||
|
||
|
||
(defun edebug-lemacs-specific ()
|
||
|
||
;; We need to bind zmacs-regions to nil around all calls to `mark' and
|
||
;; `mark-marker' but don't bind it to nil before entering a recursive edit,
|
||
;; that is, don't interfere with the binding the user might see while
|
||
;; executing a command.
|
||
|
||
(defvar zmacs-regions)
|
||
|
||
(defun edebug-mark ()
|
||
(let ((zmacs-regions nil))
|
||
(mark)))
|
||
|
||
(defun edebug-mark-marker ()
|
||
(let ((zmacs-regions nil));; for lemacs
|
||
(mark-marker)))
|
||
|
||
|
||
(defun edebug-mode-menu (event)
|
||
(interactive "@event")
|
||
(popup-menu edebug-mode-menus))
|
||
|
||
(define-key edebug-mode-map 'button3 'edebug-mode-menu)
|
||
)
|
||
|
||
(defun edebug-emacs-version-specific ()
|
||
(cond
|
||
;; Test Lucid first.
|
||
((string-match "Lucid" emacs-version);; lemacs
|
||
(edebug-lemacs-specific))
|
||
|
||
((string-match "^19" emacs-version);; Emacs 19
|
||
(edebug-emacs19-specific))
|
||
|
||
((and (boundp 'epoch::version) epoch::version)
|
||
(require 'edebug-epoch))))
|
||
|
||
(edebug-emacs-version-specific)
|
||
|
||
|
||
;;;; Byte-compiler
|
||
;;; ====================
|
||
;; Extension for bytecomp to resolve undefined function references.
|
||
;; Requires new byte compiler.
|
||
|
||
;; Reenable byte compiler warnings about unread-command-char and -event.
|
||
;; Disabled before edebug-recursive-edit.
|
||
(eval-when-compile
|
||
(if edebug-unread-command-char-warning
|
||
(put 'unread-command-char 'byte-obsolete-variable
|
||
edebug-unread-command-char-warning))
|
||
(if edebug-unread-command-event-warning
|
||
(put 'unread-command-event 'byte-obsolete-variable
|
||
edebug-unread-command-event-warning)))
|
||
|
||
(eval-when-compile
|
||
;; The body of eval-when-compile seems to get evaluated with eval-defun.
|
||
;; We only want to evaluate when actually byte compiling.
|
||
;; But it is OK to evaluate as long as byte-compiler has been loaded.
|
||
(if (featurep 'byte-compile) (progn
|
||
|
||
(defun byte-compile-resolve-functions (funcs)
|
||
"Say it is OK for the named functions to be unresolved."
|
||
(mapcar
|
||
(function
|
||
(lambda (func)
|
||
(setq byte-compile-unresolved-functions
|
||
(delq (assq func byte-compile-unresolved-functions)
|
||
byte-compile-unresolved-functions))))
|
||
funcs)
|
||
nil)
|
||
|
||
'(defun byte-compile-resolve-free-references (vars)
|
||
"Say it is OK for the named variables to be referenced."
|
||
(mapcar
|
||
(function
|
||
(lambda (var)
|
||
(setq byte-compile-free-references
|
||
(delq var byte-compile-free-references))))
|
||
vars)
|
||
nil)
|
||
|
||
'(defun byte-compile-resolve-free-assignments (vars)
|
||
"Say it is OK for the named variables to be assigned."
|
||
(mapcar
|
||
(function
|
||
(lambda (var)
|
||
(setq byte-compile-free-assignments
|
||
(delq var byte-compile-free-assignments))))
|
||
vars)
|
||
nil)
|
||
|
||
(byte-compile-resolve-functions
|
||
'(reporter-submit-bug-report
|
||
gensym keywordp;; cl.el
|
||
;; Interfaces to standard functions.
|
||
edebug-original-eval-defun
|
||
edebug-original-read
|
||
edebug-get-buffer-window
|
||
edebug-mark
|
||
edebug-mark-marker
|
||
edebug-input-pending-p
|
||
edebug-sit-for
|
||
edebug-prin1-to-string
|
||
edebug-format
|
||
edebug-emacs-signal
|
||
;; lemacs
|
||
zmacs-deactivate-region
|
||
popup-menu
|
||
;; CL
|
||
cl-macroexpand-all
|
||
;; And believe it or not, the byte compiler doesnt know about:
|
||
byte-compile-resolve-functions
|
||
))
|
||
|
||
'(byte-compile-resolve-free-references
|
||
'(read-expression-history
|
||
read-expression-map))
|
||
|
||
'(byte-compile-resolve-free-assignments
|
||
'(read-expression-history))
|
||
|
||
)))
|
||
|
||
|
||
;;;; Autoloading of Edebug accessories
|
||
;;;===================================
|
||
|
||
(if (featurep 'cl)
|
||
(add-hook 'edebug-setup-hook
|
||
(function (lambda () (require 'cl-specs))))
|
||
;; The following causes cl-specs to be loaded if you load cl.el.
|
||
(add-hook 'cl-load-hook
|
||
(function (lambda () (require 'cl-specs)))))
|
||
|
||
(if (featurep 'cl-read)
|
||
(add-hook 'edebug-setup-hook
|
||
(function (lambda () (require 'edebug-cl-read))))
|
||
;; The following causes edebug-cl-read to be loaded when you load cl-read.el.
|
||
(add-hook 'cl-read-load-hooks
|
||
(function (lambda () (require 'edebug-cl-read)))))
|
||
|
||
|
||
;;;; Finalize Loading
|
||
;;;===================
|
||
|
||
;;; Finally, hook edebug into the rest of Emacs.
|
||
;;; There are probably some other things that could go here.
|
||
|
||
;; Install edebug read and eval functions.
|
||
(edebug-install-read-eval-functions)
|
||
|
||
(provide 'edebug)
|
||
|
||
;;; edebug.el ends here
|
||
|