pub enum Flag<'a> {
Seen,
Answered,
Flagged,
Deleted,
Draft,
Recent,
MayCreate,
Custom(Cow<'a, str>),
}
With the exception of Flag::Custom
, these flags are system flags that are pre-defined in
RFC 3501 section 2.3.2. All system flags
begin with \
in the IMAP protocol. Certain system flags (\Deleted
and \Seen
) have
special semantics described elsewhere.
A flag can be permanent or session-only on a per-flag basis. Permanent flags are those which
the client can add or remove from the message flags permanently; that is, concurrent and
subsequent sessions will see any change in permanent flags. Changes to session flags are valid
only in that session.
Note: The \Recent
system flag is a special case of a session flag. \Recent
can not be
used as an argument in a STORE
or APPEND
command, and thus can not be changed at all.
Message has been answered
Message is "flagged" for urgent/special attention
Message is "deleted" for removal by later EXPUNGE
Message has not completed composition (marked as a draft).
Message is "recently" arrived in this mailbox. This session is the first session to have
been notified about this message; if the session is read-write, subsequent sessions will
not see \Recent
set for this message. This flag can not be altered by the client.
If it is not possible to determine whether or not this session is the first session to be
notified about a message, then that message will generally be considered recent.
If multiple connections have the same mailbox selected simultaneously, it is undefined
which of these connections will see newly-arrived messages with \Recent
set and which
will see it without \Recent
set.
The Mailbox::permanent_flags
can include this special flag (\*
), which indicates that
it is possible to create new keywords by attempting to store those flags in the mailbox.
A non-standard user- or server-defined flag.
Performs copy-assignment from source
. Read more
This method tests for self
and other
values to be equal, and is used by ==
. Read more
This method tests for !=
.
Formats the value using the given formatter. Read more
Feeds this value into the given [Hasher
]. Read more
Feeds a slice of this type into the given [Hasher
]. Read more
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static