Struct tracing_timing::SubscriberDowncaster

pub struct SubscriberDowncaster<S, E> { /* fields omitted */ }

A convenience type for getting access to TimingSubscriber through a Dispatch.

See TimingSubscriber::downcaster.

Methods

impl<S, E> Downcaster<S, E> where
    S: SpanGroup + 'static,
    E: EventGroup + 'static,
    S::Id: Clone + Hash + Eq + 'static,
    E::Id: Clone + Hash + Eq + 'static, 

pub fn downcast<'a>(
    &self,
    d: &'a Dispatch
) -> Option<&'a TimingSubscriber<S, E>>

Retrieve a reference to this ident's original TimingSubscriber.

This method returns None if the given Dispatch is not holding a subscriber of the same type as this ident was created from.

Trait Implementations

impl<S, E> Clone for Downcaster<S, E>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<S: Copy, E: Copy> Copy for Downcaster<S, E>

impl<S: Debug, E: Debug> Debug for Downcaster<S, E>

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

Formats the value using the given formatter.