In the example of this site, there is a point 3) Generating a trait from a class.http://www.iam.unibe.ch/~schaerli/smalltalk/traits/ traitsPrototype.htm
TTrait named: #TPoint
fromClass: Point
includeSuperUnit: nil
uses: {}
category: 'Traits-Temp'
The authors say "When generating a trait from an existing class, the system automatically replaces instance variable accesses through accessor methods."
Moreover they say the class serves as a source.
Exactly the same thing I would like to do in Squeak 3.9final, too.
But I don't know how to do it.
If the people, who are doing the research on Traits, included this functionality in March 2003, why isn't there in 2006 ?
stephane ducasse <stephane.ducasse@xxxxxxx> wrote:
> How can I create a trait from a class in Squeak 3.9 final ?
What do you mean?
If this is taking a class and turning it into a trait. Basically you
cannot. It was never the case or I do not understand what
you mean.
> In previous version I could use e.g. "fromClass: Class1".
> (http://www.iam.unibe.ch/~schaerli/smalltalk/traits/
> traitsPrototype.htm)
> In 3.9 final this message is not recognized anymore.
>
> Best regards,
> Warakorn
>
> stephane ducasse wrote: Traits are in
> 3.9 final.
>
> Stef
>
> On 18 nov. 06, at 01:25, Warakorn Paphrawat wrote:
>
> > Hi !
> >
> > I would like to work with Traits in Squeak 3.9g, too.
> > The current VM and Image run
very stabble.
> >
> > The Traits researcher form Bern provide an
image 3.9a where Traits
> > are included. But this image is terribly unstable and I am
> > accustomed now to 3.9g.
> > I want to port the Traits functionality to Squeal 3.9g.
> > How can I do that ?
> >
> > The thing is, I read that Traits are included in Squeak 3.9g. I can
> > find the Trait classes and categories. But I cannot create
> > Traits...the Browser doesn't recognize the term Trait oder named or
> > fromClass
> > e.g.
> > Trait named: #TsomeTrait
> > fromClass: someClass
> > uses: {something}
> > category: 'some_category'
> >
> > SqueakMap always complains when I want to install Traits.
> > I read sth. about loading .mcz files, but the FileList Browser
> > doesn't let me to load.
> >
> > What can I
do to make it work ?
> > Sponsored Link
> >
> > $200,000
mortgage for $660/mo - 30/15 yr fixed, reduce debt, home
> > equity - Click now for info
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
> > http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
> _______________________________________________
> Beginners mailing list
> Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
>
> Sponsored Link
>
> Mortgage rates near 39yr lows. $310,000 Mortgage for $999/mo -
> Calculate new house payment
>
> _______________________________________________
> Beginners mailing list
> Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
> http://lists.squeakfoundation.org/mailman/listinfo/beginners
_______________________________________________
Beginners mailing
list
Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
http://lists.squeakfoundation.org/mailman/listinfo/beginners
Sponsored Link
Mortgage rates near 39yr lows. $310,000 Mortgage for $999/mo -
Calculate new house payment_______________________________________________
Beginners mailing list
Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
http://lists.squeakfoundation.org/mailman/listinfo/beginners
| 