[lazarus] Order of destruction in TCustomListBox

Micha Nelissen micha at neli.hopto.org
Sat Dec 13 16:40:26 EST 2003


Mattias Gaertner wrote:

> On Sat, 13 Dec 2003 19:39:39 +0100  Micha Nelissen <micha at neli.hopto.org>
> wrote:
> 
> 
>>Mattias Gaertner wrote:
>>
>>
>>>On Sat, 13 Dec 2003 17:27:00 +0100  Micha Nelissen
>>><micha at neli.hopto.org> wrote:
>>>
>>>
>>>
>>>>Mattias Gaertner wrote:
>>>>
>>>>
>>>>>I think, we should keep fItems like the VCL until after the "inherited
>>>>>Destroy;".
>>>>
>>>>Do you know why the order is like it is in the VCL?
>>>
>>>
>>>Only Borland knows for sure.
>>>Probably because calling the inherited Destroy produces notifications,
>>>which can call code, that accesses the listbox items and would otherwise
>>>need some ifs.
>>
>>Aah, the 'yucky'-ness of Object Pascal :-(.
> 
> 
> What do you mean?

I don't like the fact of pascal that it's possible that overriden 
functions get called although their constructor hasn't run or their 
destructor has run.

Micha.






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