Re: Adding support for xref jumping to headers/interfaces

[Eli Zaretskii]

> Date: Thu, 9 Mar 2023 18:53:42 +0200
> Cc: stephen_leake@stephe-leake.org, john@yates-sheets.org, rms@gnu.org,
>  fgunbin@fastmail.fm, casouri@gmail.com, sbaugh@janestreet.com,
>  emacs-devel@gnu.org, azeng@janestreet.com
> From: Dmitry Gutov <dgutov@yandex.ru>
> 
> There is also the issue of having those files generated and saved to 
> appropriate files. If I run 'etags -o TAGS', I might not expect that 
> additional files will appear. Or existing ones -- overwritten.

That's not what I had in mind.  I thought we'd run etags several
times, as in

  etags --enums-only -o TAGS.enum
  etags --decls-only -o TAGS.decl

etc.

> > OTOH, having those in a single file will need Xref to cope with
> > multiple matches, something that currently we largely avoid.  You'd
> > have the same symbol mentioned once for declaration, another time for
> > definition, perhaps yet another time for interface, etc.
> 
> We already support duplicates, don't we?

Only when there's no way around that, and we consider that unfortunate
when it does happen.