Struct TodoDiff 

pub struct TodoDiff {
    pub added: Vec<TodoItem>,
    pub removed: Vec<TodoItem>,
    pub changed: Vec<TodoChange>,
}

Server-computed delta between the previously persisted todo list and the one the model just wrote.

Matching key is content. If the model renames a task the rename surfaces as one entry in removed plus one in added, which is the right semantic — a renamed task is conceptually a different task to the user even if the underlying intent is the same.

On the very first TodoWrite of a session, every item lands in added. On a clear (todos: []), every previously persisted item lands in removed.

Fields

added: Vec<TodoItem>

Items present on the new list whose content is not on the old list.

removed: Vec<TodoItem>

Items present on the old list whose content is not on the new list.

changed: Vec<TodoChange>

Items present on both lists by content whose status or priority changed.

Implementations

impl TodoDiff

pub fn is_empty(&self) -> bool

true when there are no additions, removals, or changes. Used to suppress the TodoUpdate event on no-op writes — the dedup-nudge path returns the “unchanged” message to the model without surfacing a transition to clients.

Trait Implementations

impl Clone for TodoDiff

fn clone(&self) -> TodoDiff

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TodoDiff

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

Formats the value using the given formatter.

impl Default for TodoDiff

fn default() -> TodoDiff

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TodoDiff

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for TodoDiff

fn eq(&self, other: &TodoDiff) -> 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 TodoDiff

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 TodoDiff