bug#46992: xref-after-update-hook

[Juri Linkov]

tags 46992 fixed
close 46992 28.0.50
thanks

>> This is the first thing that I tried, but the problem is that
>> it's called before the xref buffer is filled with results
>> where I need to put overlays on output lines.
>> Also the hook needs to be called after reverting xref buffer.
>
> I figured if all you are doing is some setup and turning on a minor mode,
> it should be enough to only do once. A minor mode would generally track all
> subsequent modifications to the buffer with after-change-functions or the
> like (we don't bind (inhibit-modification-hooks t) while rendering the
> output, although it looks like we might, for a small extra speed boost).

We can't overburden minor modes with such complexity that is not used
most of the time.

> But if that doesn't work for some reason, or doesn't cover all your goals,
> please feel free to install the patch.

Ok, pushed to master, and closed.