[Webkit-unassigned] [Bug 184012] Unable to use HashMap<WebCore::SecurityOriginData, Ref<WebSWServerToContextConnection>> type in StorageProcess.h

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Mar 27 09:55:43 PDT 2018


--- Comment #5 from Darin Adler <darin at apple.com> ---
So we consider it a programming error to move from a Ref that is null. But we want to use null values in the hash table. I think the best way to work around this is in the hash table machinery rather than in Ref; I don’t think we should use a value other than nullptr for empty since I think it would hurt efficiency.

For this specific case, I think we could figure out how to make emptyValueIsZero be true for SecurityOriginData. I am pretty sure that works even for std::optional.

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