this question is more appropriate on the user mailinglist or on even better on stackoverflow (tag #pharo) please repost on pharo-users@lists.gforge.inria.fr On 2012-06-12, at 10:11, Gareth Cox wrote:

Hi All

I'm attempting to subclass a class (Point) and I want some instructions passed to Point to go to MyPoint. Specifically I have Point >>asMyPoint >> self subclassResponsibility. In MyPoint I've got asMyPoint ^x@y.

When I execute code, I get an error that the subclass should have executed... How does this actually work? How should I do this?

Kind Regards Dusty

Hi Gareth, I did not get what you want to do exactly. subclassResponsibility is used to through an exception which indicates that this methods should have been redefined in a subclass. 2012/6/12 Gareth Cox <gareth.cox@pro-mis.com>

Hi All

I'm attempting to subclass a class (Point) and I want some instructions passed to Point to go to MyPoint. Specifically I have Point >>asMyPoint >> self subclassResponsibility. In MyPoint I've got asMyPoint ^x@y.

When I execute code, I get an error that the subclass should have executed...

which code did you execute?

How does this actually work? How should I do this?

By creating your subclass of Point named MyPoint, you can change any method of Point by redefining it in MyPoint. Luc

Kind Regards Dusty