Re: [PATCH] Implement `equal' for hash tables

On Sun, Aug 16, 2026 at 11:55 AM Stefan Monnier <[email protected]>
wrote:

> > Stefan, what do you think of this?
>
> Nothing specific.  For the record, if I were to define `equal` today,
> I'd make hash-tables compare structurally, both because that's what
> Common Lisp does, and because my rule of thumb is that if it can be
> printed `read`ably it should usually be compared structurally.
>
> [ And of course, the order in which the keys were inserted should not
>   influence the comparison.  ]
>
> As I said earlier, the issue for me is backward compatibility.
> [ As well as the desire to find a more general solution where the
>   caller can specify what is compared structurally and what isn't.  ]
>

And perhaps some custom comparator logic to handle things like json
dates/times and the rest of the under-and un-specified mess that passes for
some data-interchange formats/protocols.