On Wed, Aug 3, 2011 at 12:42 PM, Nicolas Cellier <nicolas.cellier.aka.nice@gmail.com> wrote:

I'm pretty sure the array inst var of your WeakOrderedColleciton is no
more a WeakArray but a simple Array.

Yes, indeed, it is a normal Array and that cought my attention. But since I have no idea about Weak stuff...I also noticed that WeakOrderedCollection is declared as:

OrderedCollection subclass: #WeakOrderedCollection
�� instanceVariableNames: ''
�� classVariableNames: ''
�� poolDictionaries: ''
�� category: 'Collections-Weak'

instead of using the #weakSubclass: ... message:

OrderedCollection weakSubclass: #WeakOrderedCollection
�� instanceVariableNames: ''
�� classVariableNames: ''
�� poolDictionaries: ''
�� category: 'Collections-Weak'

�

This is because Pharo's WeakOrderedCollection is broken...

Do you know a weak collection that is not broken in Pharo and let me do a addLast: ?
�

Every reference to Array from within OrderedCollection should be
replaced with message send (self arrayType).
See for example, OrderedCollection>>#grow

Thanks. I will check how many there are and try to fix them.
�

Nicolas

2011/8/3 Mariano Martinez Peck <marianopeck@gmail.com>:

> Hi guys. I am since yesterday trying to find something and I cannot. So at
> this point I need external eyes :)
> I have this little code:
>
> �� anObject := ClassWith2Var new.
> �� sharedObject := ClassWith1Var new.
> �� sharedObject var1: 'nose'.
> �� anObject var1: Date today.
> �� anObject var2: sharedObject.
>
> �� serializedObjects := FuelMareaSerializer new serializeAndWriteObject:
> anObject to: 'aFileName'.
> �� anObject := nil.
> �� sharedObject := nil.
>
> �� 3 timesRepeat: [Smalltalk garbageCollect].
> �� serializedObjects inspect.
>
>
>
> What is important here is that FuelMareaSerializer new
> serializeAndWriteObject: anObject to: 'aFileName' answers a
> WeakOrderedCollection with each object of the serialized graph (taking
> anObject as the root)
> Now, if I print the tempVar serializedObjects I see:
>
> a WeakOrderedCollection(ClassWith1Var ClassWith2Var Date DateAndTime
> Duration a ClassWith1Var a ClassWith2Var 3 August 2011
> 2011-08-03T00:00:00+02:00 0:02:00:00 1:00:00:00 86400 2455777 'nose' 0 7200)
>
> WHYYYY??� why are all there if I put a nil to both, anObject and
> sharedObejct. This WeakOrderedCollection should be with all nils (except
> classes). Why are not being garbage collected?
>
> If I explore, for example the tempVar sharedObejct, which is at
> serializedObjects at: 6�� and then I put explore pointers I ONLY see the
> array of the WeakOrderedCollection pointing to it. I don't understand.
>
> Any help is really appreaciated.
>
> --
> Mariano
> http://marianopeck.wordpress.com
>
>