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Re: [perl #32714] Objects destroyed in the wrong order during glo bal destruction

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From:
Mark Jason Dominus
Date:
December 2, 2004 10:16
Subject:
Re: [perl #32714] Objects destroyed in the wrong order during glo bal destruction
Message ID:
20041202182145.6411.qmail@plover.com
> 
> Only in normal destruction. It _cant_ make the guarantee that you say it
> does or circular structures would never be broken during global destruction:

Yes, you're right.  But in this case there is no circular structure.

As I mentioned to Christoph Haas, our surprise at this situation might
be the result of our misunderstanding of global destruction semantics.
I am still willing to admit that, but it also seems to me that the
present behavior is unnecessarily bad.

> That's why I was suggesting the counter approach. At least then you could
> know that the objects would be destroyed in a defined order.

I misunderstood your suggestion.  Thanks for explaining it.

It still seems to me that Perl's final destruction should have a first
pass in which objects are destroyed normally, in
reference-count-order, followed by a second pass to take care of any
remaining circularly-referenced objects.  Or alternatively, that the
outer object in my example should be destroyed at the end of program
execution, but before the global destruction paqhse is initiated.





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