Is there any reason why get and get_private CookieJar functions have a different return value?

[Luni-4]

Looking at the CookieJar documentation for rocket0.5.0-rc.4 I've noticed that get retrieves an Option<&Cookie<'static>> as returning value, while get_private returns an Option<Cookie<'static>>. Is there a particular reason for this difference in these APIs? Thanks for your reply!

[SergioBenitez]

Yes. get() returns a cookie where the internal value borrows from the request, since its value is identical (modulo percent decoding, which we cache) to what the client sent. get_private() fetches a private cookie, whose value, on the other hand, is encrypted (and signed). The logical value, the decrypted value, is thus different than the value already in memory, and thus we cannot borrow it from the request. We must allocate to store said value, hence the owned-ness of the returned Cookie.

[Luni-4]

Oh, I see. Thanks a lot for your reply!