Hi, if you are using Pharo7, you could do either on a class (affects all instances) or on an object (affects only the target instance):
> classOrObject link: yourMetaLink toSlotNamed: #slotName option: #write It will install the metalink on all write accesses to the slot. Note that if you target a single object, it will be migrated to an anonymous subclass for the metalink to be object-specific. In both cases, if you add or remove inst-var accesses, the metalink should update automatically. Steven. Le 2019-04-03 15:57, Vitor Medina Cruz a écrit : > Hello, > > Is it possible to intercept a slot store? I tried with a before metalink into > #write:to selector, but it don't seems to work. Should I use another selector? > > I would like to experiment with ivar change notification, but I don't know > what is the better approach. I know I could install a MetaLink in an > attribution node, but that seems ankward and I would have to edit the linkage > every time my object is changed, isn't true? > > Regards, > Vitor
