Struct Event 

pub struct Event<T> { /* private fields */ }

A struct which represents some event.

Generic parameter T is a type of argument which callbacks accept.

Implementations

impl<T> Event<T>

pub fn new() -> Self

Creates a new instance of an event.

pub fn connect<F>(&self, callback: F) -> usize

where F: Fn(&T) + Send + Sync + 'static,

Registers the provided callback to invoke when the event is emitted.

Returns an ID which can be used to unregister the callback using disconnect.

pub fn emit(&self, value: &T)

Emits the event.

It calls all callbacks with &T as the argument.

pub fn disconnect(&self, handle: usize)

Unregister the callback by its ID.

Trait Implementations

impl<T: Clone> Clone for Event<T>

fn clone(&self) -> Event<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Default> Default for Event<T>

fn default() -> Event<T>

Returns the “default value” for a type.