crystal clear()

Steven Schveighoffer schveiguy at yahoo.com
Fri Sep 17 15:15:58 PDT 2010


On Fri, 17 Sep 2010 18:11:11 -0400, Steven Schveighoffer  
<schveiguy at yahoo.com> wrote:

> On Fri, 17 Sep 2010 18:07:54 -0400, Andrei Alexandrescu  
> <SeeWebsiteForEmail at erdani.org> wrote:
>
>> On 09/17/2010 04:55 PM, Steven Schveighoffer wrote:
>>> On Fri, 17 Sep 2010 17:33:11 -0400, Andrei Alexandrescu
>>> <SeeWebsiteForEmail at erdani.org> wrote:
>>>
>>>> I think clear() can be fixed if we remove the call to the constructor
>>>> AND obliterate the vptr.
>>>
>>> agreed.
>>
>> One more thing: we need to change the call to the destructor to check  
>> the vptr. If the vptr is null, no call to the destructor. Where is that  
>> piece of code? Couldn't find it by grepping for __dtor.
>
> lifetime.d?  Looks like it might already check for null classinfo ;)
>
> http://www.dsource.org/projects/druntime/browser/trunk/src/rt/lifetime.d#L1002

Wait, I don't know enough about object I think.  Is there ClassInfo *and*  
vtable in the object?  Probably...

-Steve


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