class removal problem

> Hi all,
>
> It is about the class load/unload logic.
>
> I'm trying to remove BooleanPreferenceView.
> But this class is registered as a preference view :
> ---------------
> BooleanPreferenceView class>>initialize
>    PreferenceViewRegistry ofBooleanPreferences register: self.
> ---------------
>
> BooleanPreferenceView also implements #unload which unregisters itself
> from the registry:
> ---------------
> BooleanPreferenceView class>>unload
>    PreferenceViewRegistry ofBooleanPreferences unregister: self
> ---------------
>
> So ok, if I remove the class from the browser, #unload is sent and the
> PreferenceViewRegistry registry is kept clean.
> The same if I load a change set.
> But if I make a SLICE and load it from a fresh image, then, it seems
> that #unload is not sent because
> AnObsoleteBooleanPreferenceView is still referenced by the
> PreferenceViewRegistry registry.
>
> Have I missed something ?
> Thanks
> Alain
>
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

> .
>
> Cheers,
> Adrian
>
> On Jun 6, 2009, at 15:47 , Alain Plantec wrote:
>
>  
>> Hi all,
>>
>> It is about the class load/unload logic.
>>
>> I'm trying to remove BooleanPreferenceView.
>> But this class is registered as a preference view :
>> ---------------
>> BooleanPreferenceView class>>initialize
>>    PreferenceViewRegistry ofBooleanPreferences register: self.
>> ---------------
>>
>> BooleanPreferenceView also implements #unload which unregisters itself
>> from the registry:
>> ---------------
>> BooleanPreferenceView class>>unload
>>    PreferenceViewRegistry ofBooleanPreferences unregister: self
>> ---------------
>>
>> So ok, if I remove the class from the browser, #unload is sent and the
>> PreferenceViewRegistry registry is kept clean.
>> The same if I load a change set.
>> But if I make a SLICE and load it from a fresh image, then, it seems
>> that #unload is not sent because
>> AnObsoleteBooleanPreferenceView is still referenced by the
>> PreferenceViewRegistry registry.
>>
>> Have I missed something ?
>> Thanks
>> Alain
>>
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>    
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>
>
>  

> Adrian Lienhard a écrit :
>> Hi Alain,
>>
>> Just this morning when removing SqueakMap I noticed the same problem.
>>
>> What I did to solve it is to explicitly execute "ClassToBeRemoved
>> unload" as part of the ScriptLoader update before loading the new
>> package versions
> Thanks.
> Is it an issue or is there a good reason for that ?

>
> alain
>> .
>>
>> Cheers,
>> Adrian
>>
>> On Jun 6, 2009, at 15:47 , Alain Plantec wrote:
>>
>>
>>> Hi all,
>>>
>>> It is about the class load/unload logic.
>>>
>>> I'm trying to remove BooleanPreferenceView.
>>> But this class is registered as a preference view :
>>> ---------------
>>> BooleanPreferenceView class>>initialize
>>>   PreferenceViewRegistry ofBooleanPreferences register: self.
>>> ---------------
>>>
>>> BooleanPreferenceView also implements #unload which unregisters  
>>> itself
>>> from the registry:
>>> ---------------
>>> BooleanPreferenceView class>>unload
>>>   PreferenceViewRegistry ofBooleanPreferences unregister: self
>>> ---------------
>>>
>>> So ok, if I remove the class from the browser, #unload is sent and  
>>> the
>>> PreferenceViewRegistry registry is kept clean.
>>> The same if I load a change set.
>>> But if I make a SLICE and load it from a fresh image, then, it seems
>>> that #unload is not sent because
>>> AnObsoleteBooleanPreferenceView is still referenced by the
>>> PreferenceViewRegistry registry.
>>>
>>> Have I missed something ?
>>> Thanks
>>> Alain
>>>
>>>
>>>
>>> _______________________________________________
>>> Pharo-project mailing list
>>> [hidden email]
>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>
>>
>>
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project

>
> On Jun 6, 2009, at 17:47 , Alain Plantec wrote:
>
>> Adrian Lienhard a écrit :
>>> Hi Alain,
>>>
>>> Just this morning when removing SqueakMap I noticed the same  
>>> problem.
>>>
>>> What I did to solve it is to explicitly execute "ClassToBeRemoved
>>> unload" as part of the ScriptLoader update before loading the new
>>> package versions
>> Thanks.
>> Is it an issue or is there a good reason for that ?
>
> I don't think so.
>
> However, looking at the code, it seems #unload is sent.
>
> MCClassDefinition>>#unload sends
> Smalltalk removeClassNamed: name
> which eventually calls Class>>removeFromSystem:
> which call #unload
>
> Strange...
>
> Adrian
>
>>
>> alain
>>> .
>>>
>>> Cheers,
>>> Adrian
>>>
>>> On Jun 6, 2009, at 15:47 , Alain Plantec wrote:
>>>
>>>
>>>> Hi all,
>>>>
>>>> It is about the class load/unload logic.
>>>>
>>>> I'm trying to remove BooleanPreferenceView.
>>>> But this class is registered as a preference view :
>>>> ---------------
>>>> BooleanPreferenceView class>>initialize
>>>>  PreferenceViewRegistry ofBooleanPreferences register: self.
>>>> ---------------
>>>>
>>>> BooleanPreferenceView also implements #unload which unregisters
>>>> itself
>>>> from the registry:
>>>> ---------------
>>>> BooleanPreferenceView class>>unload
>>>>  PreferenceViewRegistry ofBooleanPreferences unregister: self
>>>> ---------------
>>>>
>>>> So ok, if I remove the class from the browser, #unload is sent and
>>>> the
>>>> PreferenceViewRegistry registry is kept clean.
>>>> The same if I load a change set.
>>>> But if I make a SLICE and load it from a fresh image, then, it  
>>>> seems
>>>> that #unload is not sent because
>>>> AnObsoleteBooleanPreferenceView is still referenced by the
>>>> PreferenceViewRegistry registry.
>>>>
>>>> Have I missed something ?
>>>> Thanks
>>>> Alain
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Pharo-project mailing list
>>>> [hidden email]
>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>>
>>>
>>>
>>> _______________________________________________
>>> Pharo-project mailing list
>>> [hidden email]
>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>
>>>
>>>
>>
>>
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>

> Stef
>
> On Jun 6, 2009, at 6:49 PM, Adrian Lienhard wrote:
>
>  
>> On Jun 6, 2009, at 17:47 , Alain Plantec wrote:
>>
>>    
>>> Adrian Lienhard a écrit :
>>>      
>>>> Hi Alain,
>>>>
>>>> Just this morning when removing SqueakMap I noticed the same  
>>>> problem.
>>>>
>>>> What I did to solve it is to explicitly execute "ClassToBeRemoved
>>>> unload" as part of the ScriptLoader update before loading the new
>>>> package versions
>>>>        
>>> Thanks.
>>> Is it an issue or is there a good reason for that ?
>>>      
>> I don't think so.
>>
>> However, looking at the code, it seems #unload is sent.
>>
>> MCClassDefinition>>#unload sends
>> Smalltalk removeClassNamed: name
>> which eventually calls Class>>removeFromSystem:
>> which call #unload
>>
>> Strange...
>>
>> Adrian
>>
>>    
>>> alain
>>>      
>>>> .
>>>>
>>>> Cheers,
>>>> Adrian
>>>>
>>>> On Jun 6, 2009, at 15:47 , Alain Plantec wrote:
>>>>
>>>>
>>>>        
>>>>> Hi all,
>>>>>
>>>>> It is about the class load/unload logic.
>>>>>
>>>>> I'm trying to remove BooleanPreferenceView.
>>>>> But this class is registered as a preference view :
>>>>> ---------------
>>>>> BooleanPreferenceView class>>initialize
>>>>>  PreferenceViewRegistry ofBooleanPreferences register: self.
>>>>> ---------------
>>>>>
>>>>> BooleanPreferenceView also implements #unload which unregisters
>>>>> itself
>>>>> from the registry:
>>>>> ---------------
>>>>> BooleanPreferenceView class>>unload
>>>>>  PreferenceViewRegistry ofBooleanPreferences unregister: self
>>>>> ---------------
>>>>>
>>>>> So ok, if I remove the class from the browser, #unload is sent and
>>>>> the
>>>>> PreferenceViewRegistry registry is kept clean.
>>>>> The same if I load a change set.
>>>>> But if I make a SLICE and load it from a fresh image, then, it  
>>>>> seems
>>>>> that #unload is not sent because
>>>>> AnObsoleteBooleanPreferenceView is still referenced by the
>>>>> PreferenceViewRegistry registry.
>>>>>
>>>>> Have I missed something ?
>>>>> Thanks
>>>>> Alain
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Pharo-project mailing list
>>>>> [hidden email]
>>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>>>
>>>>>          
>>>> _______________________________________________
>>>> Pharo-project mailing list
>>>> [hidden email]
>>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>>
>>>>
>>>>
>>>>        
>>> _______________________________________________
>>> Pharo-project mailing list
>>> [hidden email]
>>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>>      
>> _______________________________________________
>> Pharo-project mailing list
>> [hidden email]
>> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>>
>>    
>
>
> _______________________________________________
> Pharo-project mailing list
> [hidden email]
> http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
>
>
>