Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> But really: now we have deadlock too?  I just want to solve this
>> problem: please let's commit something, and move on to the next bug.
>
> Can you use the sample `eldoc-future-*` code I sent earlier?
>
>         Stefan

It's not complete, is it?  And how to I use it to solve the
eldoc-documentation-compose problem?  I suppose it's possible, anything
is.  But do we really want to hand-roll futures in eldoc.el when we got
this nice https://github.com/skeeto/emacs-aio/commits/master that we
could be looking into?

Also the latest patch I attach solves the eldoc-documentation-compose
problem decently (should actually be less LOC than previous versions).
I suggest we go with this tried-and-tested well-understood solution and
then adjust as more sophisticated solutions come along and we evaluate
their merits.

João