Struct PrintEventHandler 

#[non_exhaustive]
pub struct PrintEventHandler { /* private fields */ }

Simple event handler that prints to stdout.

This handler is useful for CLI applications and debugging. It prints text directly to stdout and formats tool usage and results in a readable manner.

Example

use gba_core::event::PrintEventHandler;

let mut handler = PrintEventHandler::default();
// Use with Engine::run_stream() or Session::send_stream()

Implementations

impl PrintEventHandler

pub fn new() -> Self

Create a new print event handler.

pub fn with_tools(self) -> Self

Enable showing tool usage details.

pub fn with_auto_flush(self) -> Self

Enable auto-flushing stdout after each text output.

This is useful for real-time streaming output where you want each piece of text to appear immediately.

Trait Implementations

impl Debug for PrintEventHandler

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

Formats the value using the given formatter.

impl Default for PrintEventHandler

fn default() -> PrintEventHandler

Returns the “default value” for a type.

impl EventHandler for PrintEventHandler

fn on_text(&mut self, text: &str)

Called when text content is received from Claude.

fn on_tool_use(&mut self, tool: &str, input: &Value)

Called when Claude starts using a tool.

fn on_tool_result(&mut self, result: &str)

Called when a tool returns a result.

fn on_error(&mut self, error_msg: &str)

Called when an error occurs during streaming.

fn on_complete(&mut self)

Called when the response is complete.