CODEWITHSUNDEEP
emacscedetemacs-semantic
Jolly Wing
Jolly Wing

Reputation: 31

"void-variable last-command-char" error when I use semantic to locate symbol

Since I use Emacs 24, I always get error when I try to find where a symbol occurs with semantic-symref-symbol. The details are:

  1. I push some key to call semantic-symref-symbol when the cursor is on some symbol of my source file, then I get a list that describes where the symbol occurs in *Symref buffer.

  2. On a entry of the list, I push SPACE or RETURN key, it jump to the right place, but at the same time, Emacs popup *Backtrace* buffer in other window. Its content is as below:

    Debugger entered--Lisp error: (void-variable last-command-char)
  semantic-symref-rb-goto-match(#<overlay from 97 to 126 in *Symref stateStack>)
  push-button(97)
  call-interactively(push-button nil nil)

    Then I follow the semantic-symref-rb-goto-match function, which is defined in semantic-symref-list.el. The elisp function is defined as below:

    (defun semantic-symref-rb-goto-match (&optional button)
  "Go to the file specified in the symref results buffer.
BUTTON is the button that was clicked."
  (interactive)
  (let* ((tag (button-get button 'tag))
     (line (button-get button 'line))
     (buff (semantic-tag-buffer tag))
     (win (selected-window))
     )
    (switch-to-buffer-other-window buff)
    (goto-line line)
    (pulse-momentary-highlight-one-line (point))
    (when (eq last-command-char ? ) (select-window win))
    )
  )

    I found the last-command-char in the function, but I don't understand why Emacs complain that (void-variable last-command-char). It should be the key code of space or return.

I want to know the reason and to fix this issue.

Upvotes: 2

Views: 1664

Answers (2)

Simul
Simul

Reputation: 51

Replace the reference to a last-command-char with the last-command-event. When it existed, last-command-char was an alias for last-command-event.

Upvotes: 5

Drew
Drew

Reputation: 30699

last-command-char was removed from Emacs 24.3. It is still defined in Emacs 24.2. It is mentioned in the 24.3 NEWS:

** Some obsolete functions, variables, and faces have been removed:
*** `last-input-char', `last-command-char', `unread-command-char'

In Emacs 24.2, C-h v last-command-char says that it has been obsolete since at least Emacs 19.34.

Please report a bug to the owner of the code.

Upvotes: 0

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