Struct OutputListener

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

Listener implements the emitter side of the [Output Tracking pattern].

Implementations

impl<T> Listener<T>

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

where T: Clone,

Emit a new event to attached listeners.

pub fn emit_with(&self, event_source: impl FnMut() -> T)

Emit a new event to attached listeners.

Calls the given closure to generate the event for each tracker. This allows to skip expensive setup when no trackers are connected.

pub fn emit_with_cached(&self, cached_event_source: impl FnOnce() -> T)

where T: Clone,

Emit a new event to attached listeners.

Calls the given closure at most once to generate the event. Afterwards, the generated event is cached and reused for future trackers. This allows to skip expensive setup when no trackers are connected.

pub fn track(&self) -> Tracker<T>

Create a new Tracker, connected to this listener.

Trait Implementations

impl<T> Default for Listener<T>

fn default() -> Self

Returns the “default value” for a type.