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From: ludo@gnu.org (Ludovic Courtès)
To: guile-user@gnu.org
Subject: Re: procedure-source availability
Date: Thu, 04 Oct 2012 21:40:24 +0200	[thread overview]
Message-ID: <87txuakouv.fsf@gnu.org> (raw)
In-Reply-To: CAMFYt2aSAtyfBhVgDhX2iaJ2-q-=EMfN8N-XKxYocpAu+UG20g@mail.gmail.com

Hi,

Panicz Maciej Godek <godek.maciek@gmail.com> skribis:

> I recall someone having the idea of adding smalltalk-like images to guile.
> I'd love to see such feature one day, but if guile is supposed to be
> an extension language, I think the C interface would need to be
> redesigned, because there would be a need to somehow dump the smobs
> from the heap to re-load them later.

At the C level, that seems somewhat ambitious.  :-)

> I don't know much about the implementation of the GOOPS objects, but I
> suspect that they would also require some means of serialization

The (oop goops save) module implements parts of a serialization
framework.  When GOOPS is loaded, any Scheme object is a GOOPS instance,
so one could define methods to serialize any type of object.

[...]

> then I could easily implement this functionality myself (making 'self'
> a reserved keyword)
>
> (define-syntax lambda
>   (syntax-rules ()
>     ((_ args body ...)
>      (let ((self (primitive-lambda args body ...)))
>        (set-procedure-property! self 'source (quote (primitive-lambda
> args body ...)))
>        self))))

Note that this doesn’t make ‘self’ a reserved keyword; instead, it’s
just a local variable that cannot be referred to by name in BODY, thanks
to the macro hygiene rules.

Thanks,
Ludo’.




  reply	other threads:[~2012-10-04 19:40 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-09-23 19:05 procedure-source availability Panicz Maciej Godek
2012-09-30 20:11 ` Panicz Maciej Godek
2012-10-01  3:40   ` Mark H Weaver
2012-10-01 16:31     ` Panicz Maciej Godek
2012-10-02 14:06       ` Ludovic Courtès
2012-10-02 19:29         ` Panicz Maciej Godek
2012-10-03  1:03           ` Daniel Hartwig
2012-10-03 16:27             ` Panicz Maciej Godek
2012-10-04 19:40               ` Ludovic Courtès [this message]
2012-10-07  0:07                 ` Panicz Maciej Godek
2012-10-07 20:36                   ` Ludovic Courtès
2012-10-08 20:11                     ` Panicz Maciej Godek
2012-10-08 17:57                   ` Mark H Weaver
2012-10-04 16:16           ` Ludovic Courtès

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