\f
* Changes in Emacs 25.1
-** New display-buffer action function display-buffer-use-some-frame
+** `describe-function' now displays information about mode local
+ overrides (defined by cedet/mode-local.el
+ `define-overloadable-function' and `define-mode-local-overrides'.
+
+** New `display-buffer' action function `display-buffer-use-some-frame'
This displays the buffer in an existing frame other than the current
frame, and allows the caller to specify a frame predicate to exclude
frames.
;; LIST ALL LOADED OVERRIDES FOR SYMBOL HERE
)))
+(defun describe-mode-local-overload (symbol)
+ "For `help-fns-describe-function-functions'; add overloads for SYMBOL."
+ (when (get symbol 'mode-local-overload)
+ (let ((default (or (intern-soft (format "%s-default" (symbol-name symbol)))
+ symbol))
+ (override (and
+ (boundp 'describe-function-orig-buffer) ;; added in Emacs 25
+ describe-function-orig-buffer
+ (with-current-buffer describe-function-orig-buffer
+ (fetch-overload symbol)))))
+ (insert (overload-docstring-extension symbol) "\n\n")
+ (insert (substitute-command-keys (format "default function: `%s'\n" default)))
+ (when (and (boundp 'describe-function-orig-buffer) ;; added in Emacs 25
+ describe-function-orig-buffer)
+ (if override
+ (insert (substitute-command-keys
+ (format "\noverride in buffer '%s': `%s'\n"
+ describe-function-orig-buffer override)))
+ (insert (substitute-command-keys (format "\nno override in buffer '%s'\n"
+ describe-function-orig-buffer)))))
+ )))
+
+(add-hook 'help-fns-describe-function-functions 'describe-mode-local-overload)
+
;; Help for mode-local bindings.
(defun mode-local-print-binding (symbol)
"Print the SYMBOL binding."