Splitting this out from bug #195247. Dan wants to use template magic to be able to use StringView to interact with a HashMap keyed on String: > Even better, as I type this I could swear we > solved this issue with template magic and made it so you could pass > StringView to HashMap::find(). Can you check? I think we call this magic a > HashTranslator or adapter and there is a template overload of > HashMap::find(). And if we don’t have such magic because we are missing the > HashTranslator for StringView then please either add it OR file a bug so > that we can add it. (It doesn't work, currently.)