Re: define-typed: checking values on proc entry and exit

[Vivien Kraus <vivien@planete-kraus.eu>]

Hello!

This is an interesting approach, thank you.

Le vendredi 10 mai 2024 à 09:47 +0200, Dr. Arne Babenhauserheide a
écrit :
> │       ;; get the result
> │       (let ((res (helper)))
> │         ;; typecheck the result
> │         (unless (ret? res)
> │           (error "type error: return value ~a does not match ~a"
> │                  res ret?))
> │         ;; return the result
> │         res))

A nice improvement would be to support multiple return values, for
instance by using call-with-values, and checking the return value with
(apply ret? res) instead of (ret? res).

What do you think?

Best regards,

Vivien