Daniel Weinreb wrote:
This conversation has been good. I agree with both Svante
and Scott.
As is often the case with the spec, it is not quite unambiguous.
Oh, and I meant to say that I'm not sure the spec is 100%
clear on which forms are evaluated v. not evaluated, and
whether there
Daniel Weinreb wrote:
> This conversation has been good.
Yup. Here's what I gather from it, mostly:
- a shared slot's initform is required to be evaluated when the class is
created,
- however, nothing tells us that the resulting value is used immediately
to initialize the slot (it could ju
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Hi!
Am 06.01.2011 13:56, schrieb Martin Simmons:
> On Thu, 06 Jan 2011 10:33:43 +0100, Svante Carl v Erichsen said:
>> Am 06.01.2011 01:31, schrieb Scott L. Burson:
>>> In section 7.1 it says: "The :initform for a shared
>>> slot may be used when defi
This conversation has been good. I agree with both Svante
and Scott.
As is often the case with the spec, it is not quite unambiguous.
It seems to me that the spec is having trouble deciding whether
it is a real, strict, firm language spec, or a useful tutorial/reference
documentation aimed at wh
> On Wed, 05 Jan 2011 16:17:09 +0100, Didier Verna said:
>
> Until now, I've been uncounsiously relying on something that the
> standard does not seem to specify: the fact that shared slots equipped
> with an initform are initialized before the first instance is created:
>
> (defclass test
> On Thu, 06 Jan 2011 10:33:43 +0100, Svante Carl v Erichsen said:
>
> Am 06.01.2011 01:31, schrieb Scott L. Burson:
> > In section 7.1 it says: "The :initform for a shared
> > slot may be used when defining or redefining the class."
>
> I think that this is the most directly applying passage
> On Thu, 6 Jan 2011 12:36:48 GMT, Martin Simmons said:
>
> On Wed, 5 Jan 2011 16:31:31 -0800, Scott L Burson said:
> >
> > I think the sentence from 7.1.3 that you've quoted is intended to
> > apply only to local slots; I think these other two passages make that
> > clear by establishing
> On Wed, 5 Jan 2011 16:31:31 -0800, Scott L Burson said:
>
> I think the sentence from 7.1.3 that you've quoted is intended to
> apply only to local slots; I think these other two passages make that
> clear by establishing that shared slots are indeed initialized at
> defclass time.
I think
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Hi!
Am 06.01.2011 01:31, schrieb Scott L. Burson:
> In section 7.1 it says: "The :initform for a shared
> slot may be used when defining or redefining the class."
I think that this is the most directly applying passage for this
issue. I am not entir
"Scott L. Burson" wrote:
> Oh, and this appears to be a bug in ABCL, since the second passage I
> quoted above _requires_ the :initform to be evaluated at defclass
> time.
That's a good point.
--
Resistance is futile. You will be jazzimilated.
Scientific site: http://www.lrde.epita.fr/~di
"Svante Carl v. Erichsen" wrote:
> from chapter 7.1.4:
>
> "If a slot has both an :initform form and an :initarg slot option, and
> the initialization argument is defaulted using :default-initargs or is
> supplied to make-instance, the captured :initform form is neither used
> nor evaluated."
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