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Re: Help required with exporting and using GOOP generics
From: |
David Pirotte |
Subject: |
Re: Help required with exporting and using GOOP generics |
Date: |
Thu, 14 Mar 2013 15:27:42 -0300 |
Hello Brent,
Please send the code, i'll look at it asap.
I am precisely in a discussion with developers about goops and the way the guile
module system interferes with it, since i also believe that there is a serious
problem indeed: and not 'just' because there is no way to ask goops 'stuff' to
land
in a single module, but because if you don't do the right [counter intuitive]
thing
then export actually exports single class capable accessors and methods instead
of
the generic.
Anyway, please send your code, because there is a way to make it run, it's just
a
matter of you understanding how and i'll do my best to help you.
Cheers,
David
;; --
Le Thu, 14 Mar 2013 12:55:11 +0200,
Brent Pinkney <address@hidden> a écrit :
> Hello,
>
> I am having serious problems exporting generics from subclasses of
> <object> and then using them in other modules.
> I have trawled the logs and tried every combination I can thing of.
>
> I have tried creating a common base class <thing> for all my classes and
> defining the methods there, I have tried exporting generics, and I have
> even tried every combination of #:duplicates (merge-generics, first,
> last. etc.).
>
> I can sometimes make some progress but eventually I grind to a halt -
> often with spurious error messages saying that "format" and "for-each"
> are not memoized.
>
> I am also quite willing to rework my code to fit guile - I just need
> some help on how to proceed.
>
> Basically I would like a class hierarchy.
>
> Module Class
> -------------------------------------
> <object>
> (brent thing) <thing> ; optional - let me know
> id name name!
> (brent foo) <foo>
> ; redefines from <thing>
> id name name!
> "same file" <bar>
> ; uses thing.name!
> (brent baz) <baz>
> ; redefines from <thing>
> name name!
>
> I would then like a common module (brent main) to import (brent thing)
> (brent foo) and (brent baz) and then merrily create and use these classes.
>
>
> Please can someone provide me with the recipe that will solve the above
> and also scale to a proper large system.
>
> (I have test code - if required)
>
> Thanks
>
> Brent
>
>