Re: How about making `set-minibuffer-window' obsolete?

[martin rudalics]

> Does anybody have any objection to me making set-minibuffer-window
> obsolete?
>
> It's defined in src/minibuf.c, but not used by any C function, and it's
> not used by any Lisp in Emacs itself - the nearest to a use is a
> commented out occurrence in lisp/textmodes/ispell.el.
>
> This function just sets the C variable minibuf_window.  This variable is
> defined (by comment) to be the minibuffer window of the selected frame.
> So setting it to a random mini-window will cause nasty problems.
>
> Actually, I'd prefer just to remove the function entirely - but there's
> always the chance it's being used by some external library.
>
> So, any objections?

Rather `set-minibuffer-window' should take as argument a frame to set
the 'minibuffer-window' parameter of that frame.  This way it would
become the counterpart of `minibuffer-window' which takes as argument a
frame and returns that frame's minibuffer window.

The current semantics of `set-minibuffer-window' is of no practical use.
Lisp code should never deal with minibuf_window directly.  However,
every minibuffer interaction should be aware of the fact that any
frame's minibuffer window might change via fset_minibuffer_window under
its feet.

martin