Re: master f995fbd: * lisp/server.el (server-name): Add autoload cookie. (Bug#23576)

[Stefan Monnier]

>> emacs -Q
>> C-h v server- TAB
>> will load server.el and show all the variables defined there in.
> Sounds neat. I wonder, though: how does this interact with ido?

It "just works" with icomplete-mode and I guess it should work just as
well with ido-everywhere: i.e., as soon as you type the "-" after
"server", server.el will be loaded and extra entries will appear.

> What about M-x completion (and smex)?

Currently only C-h f and C-h v have been changed to make use of
the functionality.  Every place where we want this auto-loading to
happen needs to be modified so as to use #'help--symbol-completion-table
instead of `obarray' as completion table.  See below the two hunks that
do that for C-h f and C-h v.


        Stefan


@@ -58,8 +114,9 @@ describe-function
      (setq val (completing-read (if fn
                                    (format "Describe function (default %s): " 
fn)
                                  "Describe function: ")
-                               obarray 'fboundp t nil nil
-                               (and fn (symbol-name fn))))
+                               #'help--symbol-completion-table
+                                #'fboundp
+                                t nil nil (and fn (symbol-name fn))))
      (list (if (equal val "")
               fn (intern val)))))
   (or (and function (symbolp function))
@@ -706,7 +763,7 @@ describe-variable
                     (format
                      "Describe variable (default %s): " v)
                   "Describe variable: ")
-                obarray
+                #'help--symbol-completion-table
                 (lambda (vv)
                   ;; In case the variable only exists in the buffer
                   ;; the command we switch back to that buffer before