Hello, Ludovic Courtès <l...@gnu.org> writes:
> Ricardo Wurmus <rek...@elephly.net> skribis: > >> Maxim Cournoyer <maxim.courno...@gmail.com> writes: >> >>> I hear we now have "field sanitizers" on Guix records; without having >>> dug the details, it seems to be we could add a predicate validating the >>> input there? >> >> I don’t see how that would help here. In my example the service values >> themselves are all right. It’s a procedure acting on what it assumes is >> a list of service values that fails. >> >> Record field validation would not have prevented that error. > > I think we could validate primarily at the user/core boundary. If the > ‘services’ field had a sanitizer ensuring it’s a list of services, then > it’d be fine. That seems a fine approach to me; thank you for your input. Ricardo, would you like to give idea a shot and see if it suites the bill? :-). Maxim
