Object copyFrom: [was: Object clone]

Hi Jakub,

on Tue, 15 Jan 2008 18:29:53 +0100, you wrote:

> yeah a, b instance of same class and i want copy all instance variables
> values to a i want do a := b but i dont want to a is same object as b. In
> memory will be two objects a, b with same values ..

If you mean to have class Person and (aPerson := Person new), (bPerson :=  
Person new) and later you want that aPerson has exactly the same instance  
variables as bPerson, then you might want

 aPerson copyFrom: bPerson

This is not often used (it's rather at the system level), because most  
Smalltalk developers set instance variables by mutators, like

 aPerson name: bPerson name.
 aPerson address: bPerson address.
 ...

See also the comment in #copyFrom: on the instance side of Object.

Enjoy Smalltalk :)

/Klaus

> but if i change a i dont
> change b.
>
> regards
>
> 2008/1/15, Mathieu Suen <mathk.sue@xxxxxxxxx>:
> > Hi Jakub
> >
> > I don't really understand your question.
> > What is a and b? Are they instance of the same class?
> >
> > On Jan 14, 2008, at 10:42 PM, Jakub wrote:
> >
> > > hello,
> > >
> > > i want do i want set var a as all instance vars of b. Something s
> > > clone - coppy of one object. I look for clone command in SBE book
> > > but i found nothing.
> > >
> > > Thnx.
> > >
> > > --
> > > Jakub. _______________________________________________
> > > Beginners mailing list
> > > Beginners@xxxxxxxxxxxxxxxxxxxxxxxxxx
> > > http://lists.squeakfoundation.org/mailman/listinfo/beginners
> >
> >         Mth
> >
> >
> >
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