A-x ielm
(defun foo () 5) (foo) => 5
Functions you’ll call interactively, i.e. you can bind to a key sequence, the above function can only be called from other functions.
(defun foo () (interactive "r") 5)
~abc~
Instrument your function with the function
edebug-eval-top-level-form
| SPC | (step) move through sexp’s, result displayed in mini-buffer |
| n | (next) |
SPC edebug-step-mode
- negative-argument
= edebug-temp-display-freq-count ? edebug-help B edebug-next-breakpoint C edebug-Continue-fast-mode E edebug-visit-eval-list G edebug-Go-nonstop-mode I edebug-instrument-callee P edebug-view-outside Q edebug-top-level-nonstop S edebug-stop T edebug-Trace-fast-mode W edebug-toggle-save-windows X edebug-set-global-break-condition a abort-recursive-edit b edebug-set-breakpoint c edebug-continue-mode d edebug-backtrace e edebug-eval-expression f edebug-forward-sexp g edebug-go-mode h edebug-goto-here i edebug-step-in n edebug-next-mode o edebug-step-out p edebug-bounce-point q top-level r edebug-previous-result t edebug-trace-mode u edebug-unset-breakpoint v edebug-view-outside w edebug-where x edebug-set-conditional-breakpoint DEL backward-delete-char-untabify <emacs-state> Prefix Command <intercept-state> all <normal-state> Prefix Command <visual-state> Prefix Command
<emacs-state> , hydra-edebug-comma/body <emacs-state> i edebug-step-in <emacs-state> n edebug-step-mode <emacs-state> o edebug-step-out <emacs-state> q top-level
<visual-state> , hydra-edebug-comma/body <visual-state> i edebug-step-in <visual-state> n edebug-step-mode <visual-state> o edebug-step-out <visual-state> q top-level
<normal-state> , hydra-edebug-comma/body <normal-state> i edebug-step-in <normal-state> n edebug-step-mode <normal-state> o edebug-step-out <normal-state> q top-level
C-c C-c edebug-go-mode C-c C-d edebug-unset-breakpoint C-c C-l edebug-where C-c C-n edebug-next-mode C-c C-s edebug-step-mode C-c C-t ??
C-x C-a Prefix Command C-x C-e edebug-eval-last-sexp C-x SPC edebug-set-breakpoint
C-M-i completion-at-point C-M-q indent-pp-sexp C-M-x eval-defun
C-M-q indent-sexp (that binding is currently shadowed by another mode)
C-M-q prog-indent-sexp (that binding is currently shadowed by another mode)
C-x C-a C-c edebug-go-mode C-x C-a C-l edebug-where C-x C-a RET edebug-set-initial-mode C-x C-a C-n edebug-next-mode C-x C-a C-s edebug-step-mode
Global commands prefixed by ‘global-edebug-prefix’: key binding — -------
SPC edebug-step-mode = edebug-display-freq-count C edebug-Continue-fast-mode G edebug-Go-nonstop-mode Q edebug-top-level-nonstop T edebug-Trace-fast-mode W edebug-toggle-save-windows X edebug-set-global-break-condition a abort-recursive-edit b edebug-set-breakpoint c edebug-continue-mode g edebug-go-mode q top-level t edebug-trace-mode u edebug-unset-breakpoint w edebug-where x edebug-set-conditional-breakpoint
| i (into) | step into function call |
| o | step out |
| v | toggle local variables |
| q | quit |
| g (go) | go to end of func without quitting |
| h (go here) | breakpoint to where cursor is |
| b | set breakpoint here |
| G | go and dont stop at breakpoints |
re-eval function to uninstrument it
https://www.youtube.com/watch?v=odkYXXYOxpo
for macros use macrostep
Set a variable
:(setq a 123)
| function | description |
| symbol-function | get definition of function |
line-beginning-position
the position of the beginning of the current line
point-max/point-min
the last/first point (position) in the buffer.
point
current point position
C-c C-b
Can select a buffer to bind the IELM to, so that functions such as (point) report the point in that buffer and not the ielm buffer.
Trace
With command log mode, it shows which functions are run.
Install:
(use-package command-log-mode)
Enable for current buffer:
M-x command-log-mode
Show the log:
M-x clm/open-command-log-buffer
can run:
, t t
in either the impl file or test file and should run the tests that are loaded