Struct CallbackHandler 

pub struct CallbackHandler<T, F: Fn(&T)> { /* private fields */ }

A callback-based handler implementation.

This is the typed equivalent of TypedMessageHandler, but without runtime downcasting overhead.

Implementations

impl<T: 'static, F: Fn(&T) + 'static> CallbackHandler<T, F>

pub fn new<S: AsRef<str>>(id: Option<S>, callback: F) -> Self

Creates a new callback handler with an optional custom ID.

Trait Implementations

impl<T, F: Fn(&T)> Debug for CallbackHandler<T, F>

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

Formats the value using the given formatter.

impl<T: 'static, F: Fn(&T) + 'static> Handler<T> for CallbackHandler<T, F>

fn id(&self) -> Ustr

Returns the unique identifier for this handler.

fn handle(&self, message: &T)

Handles a message of type T.