March 08, 2013
On 03/08/2013 01:17 AM, Walter Bright wrote:
> On 1/2/2012 11:20 AM, Martin Nowak wrote:
>>   - Libraries might not be unloaded as long as GC collected class
>> instances
>> still exist because
>>     finalization fails otherwise.
>
> D doesn't guarantee that finalizers will run on GC allocated objects.
> Therefore, when unloading a dll:
>
> 1. run a gc collection
> 2. for all objects remaining on the heap
>         if they have a finalizer and that finalizer points into the dll
> code
>              mark them as not having a finalizer

Yeah, that's the pragmatic solution. I don't really like the 2. point though but that won't be a problem with the current GC.
It also avoids the false pointer problems of the GC.trackRange approach.

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