Cool. That's I was looking for! Thanks a lot Rudi

Bert Freudenberg bert@impara.de wrote: Am 31.07.2005 um 21:35 schrieb Rudi Bichler:

Hi,

I need some kind of copyTo: functionality, which copies a complete object (i.e. all instance variables) to another object. I need this to "convert" an object of class A into an object of a subclass of A. Something like:

Object subclass: #MyClass instanceVariableNames: 'var1 var2' ...

MyClass subclass: #MySubcl instanceVariableNames: 'var3' ...

MySubcl class >> newCopyFrom: original "create an object of class MySubcl with is - as MyClass - identical to original"

An example of such a functionality is FormCanvas asBalloonCanvas. This method is implemented by creating a BalloonCanvas and initializing it "by hand". I am looking for a generic way - something like copy in Object. Any idea?

Looking into the #copy method in Object you'll notice it calls #shallowCopy, which implements a generic copy of all instance variables - take a look!

- Bert -

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