Hi,
i'm trying to migrate an object from a given class A to a subclass of A
with new inst vars. Can't get it to work.
I have a class and an instance of it, say:
Object subclass: #A
instanceVariableNames: ''
|a|
a := A new.
A has no instance variables. Now i create a subclass B of A with a new
inst var:
A subclass: #B
instanceVariableNames: 'x'
I want to do the following:
B adoptInstance: a
It does'nt work, for what i understand it is because the format of the
classes are different (B has an inst var and A has not).
How can i make the a object become an instance of B (subclass of a's
class), making a acquiring the new inst var x (and in more complex cases
keeping its own previous inst vars) ?
Steven.
