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Remove version increment from Dictionary<K,V>.Remove overloads #18854

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Jul 14, 2018
Merged

Remove version increment from Dictionary<K,V>.Remove overloads #18854

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57ac9fb
remove version increment from Remove overloads
Wraith2 Jul 10, 2018
cc5a0a9
Merge branch 'master' into dictremove
Wraith2 Jul 11, 2018
7b10fd5
add temporary test exclusions
Wraith2 Jul 12, 2018
b49ee54
fixup test exclusion names
Wraith2 Jul 12, 2018
db08ca1
modify test exclusions
Wraith2 Jul 12, 2018
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2 changes: 0 additions & 2 deletions src/System.Private.CoreLib/shared/System/Collections/Generic/Dictionary.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -796,7 +796,6 @@ public bool Remove(TKey key)
}
_freeList = i;
_freeCount++;
_version++;
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Is it worth a comment indicating why we aren't incrementing version in these places - without context, it might look like a mistake.

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As an aside I think we are inconsistent already. Looks like both TrimExcess() and EnsureCapacity() are missing version increments, even though they can invalidate an enumeration.

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Looks like both TrimExcess() and EnsureCapacity() are missing version increments, even though they can invalidate an enumeration.

Bug that we should fix?

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Both could silently change enumeration results in the worst case so i'd say bug and fix.

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https://github.com/dotnet/corefx/issues/31007

return true;
}

Expand Down Expand Up @@ -865,7 +864,6 @@ public bool Remove(TKey key, out TValue value)
}
_freeList = i;
_freeCount++;
_version++;
return true;
}

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