Enum MailboxDiff 

pub enum MailboxDiff {
    Unchanged {
        new_state: Vec<u8>,
    },
    Changed {
        new_state: Option<Vec<u8>>,
    },
}

Outcome of an incremental mailbox-diff call.

new_state is the opaque per-backend mailbox-set checkpoint to persist for the next call; format is private to the backend impl (JMAP stores the raw Mailbox/state bytes). Backends without an account-global mailbox state token (IMAP, m2dir, maildir) return Err(EmailClientStdError::UnsupportedOperation); callers fall back to a normal mailbox listing in that case.

Variants

Unchanged

Mailbox set is identical to the cached checkpoint. Caller may reuse its prior mailbox list and skip the listing round-trip.

Fields

new_state: Vec<u8>

Changed

Mailbox set may have changed, or no checkpoint was cached. Caller must list mailboxes; new_state is None when the backend could not cheaply capture a baseline without listing.

Fields

new_state: Option<Vec<u8>>

Trait Implementations

impl Clone for MailboxDiff

fn clone(&self) -> MailboxDiff

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MailboxDiff

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.