Trait FieldObserver 

pub trait FieldObserver: Send + Sync {
    // Required method
    fn on_event(&self, event: FieldEvent);
}

Observer that receives field events

Required Methods

fn on_event(&self, event: FieldEvent)

Called when a field event occurs

Implementors

impl<F: Fn(FieldEvent) + Send + Sync> FieldObserver for FnObserver<F>