Re: rnrs records: shadows previous definition of `dummy-1a78708d3c9406a3'

On Sun, 24 May 2026, Tomas Volf <[email protected]> wrote:
[...]
> This was quite interesting read.  The problem of generating identifiers
> describe above seems non-trivial.  I probably do not have anything novel
> to add to the debate, but two questions popped up in my head.
>
> 1. What do other Schemes do?
> 2. Would incorporating source location (if available) into the hash be
>    valid?

I've tried to hash the syntax instead of the datum in psyntax.  Looking
at the C code for hashing, hashing syntax seems to also include some
metadata information.  But it did not yield a fix.

I think what we probably want is a strong collision resistant hash.  A
strong crypto hash would do the job for this. So the current core hash
would not be impacted.


I had some discussions related to this, i.e. crypto hash, in core guile,
with Ludovic and Rob.  I think that having core support for some
the crypto hashing makes sense, especially if the compiler needs it.

Thoughts?

Thanks,
Olivier
-- 
Olivier Dion