Re: Adding support for xref jumping to headers/interfaces

[Dmitry Gutov]

On 05/11/2023 00:24, João Távora wrote:
> On Sat, Nov 4, 2023 at 10:00 PM Dmitry Gutov<dgutov@yandex.ru>  wrote:
> > On 20/06/2023 18:31, João Távora wrote:
> > > If I remember correctly, SLIME (and SLY) have at least two types of
> > > "reference" searches: "who calls" and "who expands".  They create the
> > > typical ((file -> list of matches)...) listing in an SLIME xref buffer.
> > Interesting. And AFAICS SLIME also has another kind of non-definitions
> > search: slime-who-specializes.
> >
> > Speaking of the two former ones, though: is there a point in using two
> > different commands, if their outputs never "intersect"? That is, one is
> > for the macros, and another for regular functions. Why wouldn't
> > 'slime-who-calls' also work on macros, printing their expansion sites?
> I think maybe just to limit the signal to noise ratio.  Maybe I'm
> specifically interested in macro expansions only.  But I kind of agree
> that, at least  in Lisp, calling and expanding isn't usually very different
> in terms of what I want to know about such a site.

But if who-calls only works for functions and who-expands only works for 
macros, only one of them would work for a given symbol, right? The other 
would return an empty list.

> Anyway, does this mean that xref.el is soon to have a solution for
> this?  The one I vaguely remember discussing in this thread.  Something
> like a single xref-find-other command + a selector for the type of
> reference, right?

Maybe it will, maybe actually not. See one of my next few emails with a 
patch to try out (with the things you mentioned) and some further 
questions to ponder.