Re: Better way to require with shorthands/renamed symbols

[Dmitry Gutov]

On 27.09.2021 15:24, João Távora wrote:

> One should understand (or perhaps, as a programmer, one _must_
> understand) that the Shorthands feature works at the Lisp reader level.
>
> It's tricky to think about the execution of that manifestation of the
> 'require' special and what it does at the Shorthands level.  You're
> probably thinking of putting it on the top of your file, which is the
> most common case, but far from the only use.  What if it happens at
> non-top level, in an IF form?  What if it happen sat top level but in
> the middle of the file?  It would amount to setting variables that
> influence the reader during the read process.

I think the key part is for this info to reside somewhere near the top 
of the file (if not in the require form, then above it, maybe).

> As Stefan Monnier once wrote (here?), implementing namespace systems
> isn't hard in itself (it wasn't here).  It's making the tooling around
> it consistent.  The latter was only possible with the Shorthands feature
> because of the relative dumbness of its approach.

BTW, it seems the new feature will need dedicated support in 
xref-backend-references as well.