[Emacs-diffs] master 0613e7a: which-function: Do not display outdated imenu information

[Alex Branham]

branch: master
commit 0613e7a38efc3b0534e0ca5c5fa401e2a3bda906
Author: Alex Branham <address@hidden>
Commit: Alex Branham <address@hidden>

    which-function: Do not display outdated imenu information
    
    * lisp/progmodes/which-func.el (which-function): Check
      `add-log-current-defun' before imenu. Update `imenu--index-alist' if
      needed. Bug#33695
---
 lisp/progmodes/which-func.el | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/lisp/progmodes/which-func.el b/lisp/progmodes/which-func.el
index 40a74d1..564e0ff 100644
--- a/lisp/progmodes/which-func.el
+++ b/lisp/progmodes/which-func.el
@@ -272,16 +272,21 @@ It calls them sequentially, and if any returns non-nil,
 
 (defun which-function ()
   "Return current function name based on point.
-Uses `which-func-functions', `imenu--index-alist'
-or `add-log-current-defun'.
+Uses `which-func-functions', `add-log-current-defun'.
+or `imenu--index-alist'
 If no function name is found, return nil."
   (let ((name
         ;; Try the `which-func-functions' functions first.
         (run-hook-with-args-until-success 'which-func-functions)))
-
+    ;; Try using add-log support.
+    (when (null name)
+      (setq name (add-log-current-defun)))
     ;; If Imenu is loaded, try to make an index alist with it.
     (when (and (null name)
-              (boundp 'imenu--index-alist) (null imenu--index-alist)
+              (boundp 'imenu--index-alist)
+               (or (null imenu--index-alist)
+                   ;; Update if outdated
+                   (/= (buffer-chars-modified-tick) 
imenu-menubar-modified-tick))
               (null which-function-imenu-failed))
       (ignore-errors (imenu--make-index-alist t))
       (unless imenu--index-alist
@@ -323,10 +328,6 @@ If no function name is found, return nil."
                              (funcall
                               which-func-imenu-joiner-function
                               (reverse (cons (car pair) namestack))))))))))))
-
-    ;; Try using add-log support.
-    (when (null name)
-      (setq name (add-log-current-defun)))
     ;; Filter the name if requested.
     (when name
       (if which-func-cleanup-function