Esteban wrote:
>you also need to register the object for cleanup, in the WeakRegistry.
>(not on my machine, sorry I cannot put an example, but look around)
It is simple and here is an example:
Create a class:
Object subclass: #Bar
instanceVariableNames: 'id'
classVariableNames: ''
category: 'Foo'
implemented an #initialize method
initialize
super initialize.
id := UUID new.
Transcript show: 'Initialized ', id printString; cr
and implemented a finalization method:
finalize
Transcript show: 'Finalized ', id printString; cr
Now in the workspace I instantiate the object:
|anObject|
Transcript open; clear.
anObject := Bar new.
Transcript flush.
WeakRegistry default add: anObject.
and by forcing garbage collection in a second step I can
see that the finalization method is working:
3 timesRepeat: [ Smalltalk garbageCollect ].
Transcript flush.
And I get the following output
Initialized 4aa47ef1-0e4c-9a47-bddf-b406ee2042e4
Finalized 4aa47ef1-0e4c-9a47-bddf-b406ee2042e4
If it doesnt work check your VM for updates.
I'm using Pharo4.0 Latest update: #40442 on Windows with the following VM:
Win32 built on Sep 4 2014 01:13:32 Compiler: 4.6.2 VMMaker versionString
https://github.com/pharo-project/pharo-vm.git
Commit: c7bc23dd6053d5f9934f7dd427537f76fc96eb32 Jenkins build #14851
