Ludovic Courtès writes: > Hello, > > Carlo Zancanaro <ca...@zancanaro.id.au> skribis: > >> On Thu, Apr 20 2017, Ludovic Courtès wrote: >>> There must be some sort of a mapping between service types and >>> configuration types, indeed, but I’m not sure how to achieve it. >>> >>> One solution would be to have all the <foo-configuration> records >>> inherit (in the OO sense) from <service>, or something along these >>> lines. >> >> This was my first thought. I couldn't see how to do OO-style inheritance >> with the SRFI-9 API, though. I'm not very experienced with Guile (or >> scheme generally), so I might do some more reading about that. > > SRFI-99 supports inheritance, though there’s currently no SRFI-99 module > in Guile proper: > > https://srfi.schemers.org/srfi-99/srfi-99.html > > Oh and there’s also R6RS records, SRFI-35… no shortage of record APIs! > :-)
A record interface with inheritance! Neat. Though hey, if you're going to add inheritance, we also have GOOPS, and with the clone macro I sent to the mailing list a while ago that I worked on with Janneke, we even have immutable GOOPS! ;) Plus then you get generic methods! - Chris Webber, who may only be slightly trolling and knows Guix will probably never adopt using GOOPS
