bug#43609: 28.0.50; eldoc-documentation-function

[martin rudalics]

> Hooks is a list of functions. They get called to fetch the doc
> information. And now there is some logic called "strategies" that
> combines the results.

So 'eldoc-documentation-functions' just holds a list of functions I
could call in order to get the documentation of the object at point?
How does the notion of a "hook" enter here?

> No, the hook functions are written already. They are basically a list
> of functions that were previously the values of
> eldoc-documentation-function. Except it's now a list. *And* they use
> an asynchronous convention where the first argument they receive is a
> callback.

Is there a way to drop that callback?  I just want an immediate answer.

> It should work if your package learns to make use of the new
> eldoc-documentation-functions hook. Or eldoc-documentation-strategy,
> which calls them.

'eldoc-documentation-strategy' is a variable so it's probably the
function that is the value of that variable and it should suffice to use
'eldoc-documentation-default'.  But this failed here before.

martin