Enum StreamDelta 

pub enum StreamDelta {
    Text(String),
    Thinking(String),
    Sync,
}

Typed incremental delta for AgentEvent::MessageUpdate.

Replaces the former Option<String> which conflated text and thinking deltas. Consumers can now distinguish what kind of content changed.

Variants

Text(String)

Regular text output from the assistant.

Thinking(String)

Thinking/reasoning content from a reasoning model.

Sync

Non-text structural change (e.g. a tool call was finalized). Consumers should re-render from message rather than appending.

Implementations

impl StreamDelta

pub fn as_text(&self) -> Option<&str>

Returns the text content if this is a Text or Thinking delta.

pub fn has_text(&self) -> bool

Returns true if this delta carries text content (Text or Thinking).

Trait Implementations

impl Clone for StreamDelta

fn clone(&self) -> StreamDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamDelta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StreamDelta

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StreamDelta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.