Re: [Pharo-users] Observing changes of regular attributes

[stepharo]

Not yet :)

Le 9/9/15 18:18, Peter Uhnák a écrit :

Hi,

is there a mechanism for observing a change of regular variables?

Normally I would use ValueHolder (or fire announcements manually), but this assumes I can change the code.

For example imagine a method of someone else's package
~~~~~~~~~~~~~~~
FAMIXNamedEntity>>name: aString
    name := aString
~~~~~~~~~~~~~~~

I could simply override the method, but that's very brittle since if I were to update the package it would load the "unmodified" version.

Can I somehow overload the assignment operator? Can I augment methods? Is this even possible?

Thanks,
Peter