Struct ToolCallDelta 

pub struct ToolCallDelta {
    pub index: u64,
    pub id: Option<String>,
    pub name: Option<String>,
    pub arguments_fragment: Option<String>,
}

One streaming fragment of a tool call, normalized across providers.

OpenAI-wire streams delta.tool_calls entries (first delta carries id/name, later ones argument fragments); Anthropic streams a content_block_start (id/name) then input_json_delta fragments. Both key fragments by a block/call index; indices may be sparse (Anthropic’s index space is shared with text blocks), so the accumulator maps by index rather than assuming contiguity.

Fields

index: u64

The wire’s index for this call (de-multiplexes parallel calls).

id: Option<String>

The call id (usually only on the first fragment).

name: Option<String>

The tool name (usually only on the first fragment).

arguments_fragment: Option<String>

A fragment of the raw JSON argument text, to be concatenated in order.

Trait Implementations

impl Clone for ToolCallDelta

fn clone(&self) -> ToolCallDelta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ToolCallDelta

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

Formats the value using the given formatter.

impl Default for ToolCallDelta

fn default() -> ToolCallDelta

Returns the “default value” for a type.

impl PartialEq for ToolCallDelta

fn eq(&self, other: &ToolCallDelta) -> 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 StructuralPartialEq for ToolCallDelta