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From NightOwl888 <>
Subject [GitHub] lucenenet issue #185: Ported Core.Util.Fst tests + Core.Util.Packed.TestPack...
Date Sun, 18 Sep 2016 00:43:32 GMT
Github user NightOwl888 commented on the issue:
    Okay, I added some commits that take care of these issues.
    I ported the test and worked out how to make the iterator logic work in the WeakIdentityMap.
The idea about mimicking the iterator by using yield return was pretty clever, but unfortunately
won't work because it won't stop the outer loop when a stale key is hit. We need an iterator
for it to work.
    Unfortunately, although the logic works on one thread (you can verify that by commenting
[these lines](,
when you hit it with multiple threads it blows up. Perhaps there is a way to make it work
but then again, it is only used in 3 classes in the original Lucene:
    1. Core.Util.AttributeSource
    2. Core.Util.VirtualMethod
    3. Core.Util.ByteBufferIndexInput
    In AttributeSource it was replaced with WeakDictionary. Perhaps it could just be replaced
in all of them and eliminated rather than spending more time trying to fix it.

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