[Newbies] Anonymous subclasses?

Casey Ransberger casey.obrien.r at gmail.com
Mon Dec 20 00:14:28 UTC 2010


Got what I needed done (thanks Bert!) This is what I went with:

metaclass := Metaclass new
superclass: Some class;
methodDictionary: MethodDictionary new;
setFormat: Some class format;
yourself.

theme := metaclass new
superclass: Some;
methodDictionary: MethodDictionary new;
setFormat: Some format;
yourself.


On Sun, Dec 19, 2010 at 10:14 AM, Hernán Morales Durand <
hernan.morales at gmail.com> wrote:

> Hi Casey,
>
> Can you comment what's your use case for anonymous subclass? Or maybe
> post some example/testing code?
> Cheers,
>
> 2010/12/18 Casey Ransberger <casey.obrien.r at gmail.com>:
> > Hello all,
> > I want to make an anonymous subclass, or a copy of (either way) a
> subclass
> > of Object.
> > I've been googling around looking for an example of an anonymous
> subclass. I
> > haven't had luck with anything I've found. It's possible that there's
> > something I'm missing conceptually, because I've read through various
> > examples, but they all seem to do directly with Behavior or Class. I
> tried
> > various combinations of things with both of the approaches I found. Some
> of
> > them hung the image, with others the #primitiveChangeClassTo: would fail.
> I
> > read the comment there, and am aware that using it is reckless behavior.
> > I see that Smalltalk compactClassesArray gives me a list of the compact
> > classes. I don't seem to understand the format part. I've noticed that
> > certain classes (e.g. Array) are declared "variable subclasses" but
> that's
> > it. I googled and didn't turn up anything that seemed to help me grok it.
> > Tried:
> > Class format. "answers 148" Head scratch; think. ^self shrug
> > Any pointers?
> > --
> > Casey Ransberger
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners at lists.squeakfoundation.org
> > http://lists.squeakfoundation.org/mailman/listinfo/beginners
> >
> >
>
> --
> Hernán Morales
> Information Technology Manager,
> Institute of Veterinary Genetics.
> National Scientific and Technical Research Council (CONICET).
> La Plata (1900), Buenos Aires, Argentina.
> Telephone: +54 (0221) 421-1799.
> Internal: 422
> Fax: 425-7980 or 421-1799.
> _______________________________________________
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>



-- 
Casey Ransberger
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