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From: Maxime Devos <maximedevos@telenet.be>
To: Stuart Hungerford <stuart.hungerford@gmail.com>
Cc: guile-user@gnu.org
Subject: Re: Idiomatic Guile for semigroup/monoid/group?
Date: Mon, 03 Jan 2022 10:14:26 +0000	[thread overview]
Message-ID: <8c869dfc519b7faeec5feabe9243efa25cd1668d.camel@telenet.be> (raw)
In-Reply-To: <CAG+kMrEs+R_FtkAWLuCZwpbkd-zcbnDK84Sww5KQ4_BM2sW1ig@mail.gmail.com>

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Stuart Hungerford schreef op ma 03-01-2022 om 10:46 [+1100]:
> Just out of interest, are there other multimethod/ad-hoc polymorphism
> approaches for Guile?

I only know of GOOPS and Theme-D -- Guix also has a
‘define-gexp-compiler’ but it's very ad-hoc.

It allows defining something like

(define (lower stuff system target)
  (cond ((derivation? stuff) stuff) ; done
        ((foo? stuff) (lower (lower-foo stuff system target)))
        ((bar? stuff) (lower (lower-bar stuff system target)))
        [...]))

(where 'lower-stuff' converts 'stuff' into something 'lowerable'),
but in an extensible way.

Greetings,
Maxime.

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  reply	other threads:[~2022-01-03 10:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-01 23:45 Idiomatic Guile for semigroup/monoid/group? Stuart Hungerford
2022-01-02 10:46 ` Maxime Devos
2022-01-02 23:46   ` Stuart Hungerford
2022-01-03 10:14     ` Maxime Devos [this message]
2022-01-03 21:02       ` Stuart Hungerford
2022-01-03 10:02 ` zimoun

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