From: Vladimir Zolotykh
Subject: MOP question (again)
Date: 
Message-ID: <3CFA3B62.E5A558CE@eurocom.od.ua>
If I see

  (slot-boundp *my-object-1* 'my-slot-name)
  t

But
  (slot-value *my-object-1* 'my-slot-name)
gives me an error

Error: The slot nil is missing from the object #<my-object @ #x71b1ed5a> of class
       #<my-metaclass my-object> during operation slot-boundp

Is it possible to say what might be the cause without diving in details ?
Yes, ACLMOP used.


-- 
Vladimir Zolotykh
From: Tim Moore
Subject: Re: MOP question (again)
Date: 
Message-ID: <addmv9$j8g$0@216.39.145.192>
On Sun, 02 Jun 2002 18:36:02 +0300, Vladimir Zolotykh <······@eurocom.od.ua> 
wrote:
>If I see
>
>  (slot-boundp *my-object-1* 'my-slot-name)
>  t
>
>But
>  (slot-value *my-object-1* 'my-slot-name)
>gives me an error
>
>Error: The slot nil is missing from the object #<my-object @ #x71b1ed5a> of class
>       #<my-metaclass my-object> during operation slot-boundp
>
>Is it possible to say what might be the cause without diving in details ?
>Yes, ACLMOP used.

Have you written your own slot-value-using-class method on
my-metaclass?  If so, show us the code.

Tim
From: Vladimir Zolotykh
Subject: Re: MOP question (again)
Date: 
Message-ID: <3CFB04D6.3DAC1F04@eurocom.od.ua>
Tim Moore wrote:
> 
> Have you written your own slot-value-using-class method on
> my-metaclass?  If so, show us the code.

You were absolutely correct! The bug (and very obvious one) 
was there, in the method you had pointed to. Thank you very much.

-- 
Vladimir Zolotykh
From: JPGREBENC
Subject: Re: MOP question (again)
Date: 
Message-ID: <20020602173137.21110.00001997@mb-mk.aol.com>
,
From: Coby Beck
Subject: Re: MOP question (again)
Date: 
Message-ID: <BIwK8.84285$Ka.6406127@news2.calgary.shaw.ca>
"JPGREBENC" <·········@aol.com> wrote in message
··································@mb-mk.aol.com...
> ,

!
From: Jochen Schmidt
Subject: Re: MOP question (again)
Date: 
Message-ID: <ade74c$2n2$1@rznews2.rrze.uni-erlangen.de>
Coby Beck wrote:

> 
> "JPGREBENC" <·········@aol.com> wrote in message
> ··································@mb-mk.aol.com...
>> ,
> 
> !

?
From: Tim Bradshaw
Subject: Re: MOP question (again)
Date: 
Message-ID: <ey3y9dxe0na.fsf@cley.com>
* Jochen Schmidt wrote:
> Coby Beck wrote:
>> 
>> "JPGREBENC" <·········@aol.com> wrote in message
>> ··································@mb-mk.aol.com...
>>> ,
>> 
>> !

> ?

This is a Lisp group, not a scheme group.  We say this `N' and `-P'
here.


--tim
From: Paolo Amoroso
Subject: Re: MOP question (again)
Date: 
Message-ID: <4dj8POg5lOXp6VKeFAlZLKruxA1h@4ax.com>
On 02 Jun 2002 21:31:37 GMT, ·········@aol.com (JPGREBENC) wrote:

> ,

,@


Paolo
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http://www.paoloamoroso.it/ency/README
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comp.lang.lisp / 2002 / jun