Struct Tombstone 

pub struct Tombstone {
    pub child_id: String,
    pub kind: String,
    pub session_id: Option<String>,
    pub deleted_at: DateTime<Utc>,
}

A record of a locally deleted child record (link, tag, annotation, summary).

Child records merge additively across machines, so without a tombstone a child DELETED on one machine would be resurrected the next time another machine re-exported the parent session. A tombstone captures the deleted child’s id and kind so the sync merge can suppress re-adding that specific record on every machine, while leaving concurrent additions of other records untouched.

Only user-facing deletions (unlink, tag remove, annotation delete, summary delete) record tombstones. Deleting a whole session is a purely local operation and must NOT tombstone its children, or a teammate who shares the store would lose that session’s reasoning.

Fields

child_id: String

The id of the deleted child record (its UUID rendered as a string).

kind: String

The kind of child record: link, tag, annotation, or summary.

session_id: Option<String>

The session the deleted child belonged to, when known. Used to re-export the cleaned parent session after a tombstone is applied.

deleted_at: DateTime<Utc>

When the child was deleted, used for garbage-collecting stale tombstones.

Trait Implementations

impl Clone for Tombstone

fn clone(&self) -> Tombstone

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tombstone

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Tombstone

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Tombstone

impl PartialEq for Tombstone

fn eq(&self, other: &Tombstone) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Tombstone

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Tombstone