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| author | Gemini Lasswell <gazally@runbox.com> | 2020-10-01 19:59:58 +0200 |
|---|---|---|
| committer | Lars Ingebrigtsen <larsi@gnus.org> | 2020-10-01 20:00:19 +0200 |
| commit | 4997032c05e7929d6f306d5195da7c3accfad79f (patch) | |
| tree | 4ff151c5f5796acde62c45acc6982d0fd616ebae /lisp/emacs-lisp/backtrace.el | |
| parent | 08bda922b4c64e6f8fbf7cfae33aa3ac55b19ee4 (diff) | |
| download | emacs-4997032c05e7929d6f306d5195da7c3accfad79f.tar.gz | |
Restore some public debugging functions removed in Emacs 27
* lisp/emacs-lisp/backtrace.el (backtrace--to-string): New function.
(backtrace-to-string): Use it. Fix whitespace (bug#40728).
* lisp/emacs-lisp/debug.el (debugger-insert-backtrace): New function.
Mark it as obsolete.
(debugger-toggle-locals, debug-help-follow): New aliases.
Diffstat (limited to 'lisp/emacs-lisp/backtrace.el')
| -rw-r--r-- | lisp/emacs-lisp/backtrace.el | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lisp/emacs-lisp/backtrace.el b/lisp/emacs-lisp/backtrace.el index 37dad8db162..5874ba72fcd 100644 --- a/lisp/emacs-lisp/backtrace.el +++ b/lisp/emacs-lisp/backtrace.el @@ -922,11 +922,15 @@ Output stream used is value of `standard-output'." (princ (backtrace-to-string (backtrace-get-frames 'backtrace))) nil) -(defun backtrace-to-string(&optional frames) +(defun backtrace-to-string (&optional frames) "Format FRAMES, a list of `backtrace-frame' objects, for output. Return the result as a string. If FRAMES is nil, use all function calls currently active." - (unless frames (setq frames (backtrace-get-frames 'backtrace-to-string))) + (substring-no-properties + (backtrace--to-string + (or frames (backtrace-get-frames 'backtrace-to-string))))) + +(defun backtrace--to-string (frames) (let ((backtrace-fontify nil)) (with-temp-buffer (backtrace-mode) @@ -934,8 +938,7 @@ function calls currently active." backtrace-frames frames backtrace-print-function #'cl-prin1) (backtrace-print) - (substring-no-properties (filter-buffer-substring (point-min) - (point-max)))))) + (filter-buffer-substring (point-min) (point-max))))) (provide 'backtrace) |