Struct tracing_forest::builder::SubscriberBuilder

pub struct SubscriberBuilder<S, E> { /* private fields */ }

A type for building Subscribers by composing many Layers, while also holding extension data necessary for some TreeLayer types.

Implementations

impl<S, E> SubscriberBuilder<S, E> where
    S: Subscriber, 

pub fn with<L>(self, layer: L) -> SubscriberBuilder<Layered<L, S>, E> where
    L: Layer<S>, 

Wraps the inner subscriber with the provided layer.

Examples

tracing_forest::builder()
    .blocking_layer()
    .with(tracing_subscriber::filter::LevelFilter::INFO)
    .on_closure(|| {
        // do stuff here...
    })

impl<S, E> SubscriberBuilder<S, AsyncExtensions<E>> where
    S: Subscriber + Send + Sync,
    E: 'static + Future<Output = ()> + Send, 

pub async fn on_future(self, future: impl Future<Output = ()>)

Runs the provided future in the context of a subscriber layered with a TreeLayer and a tokio runtime.

impl<S> SubscriberBuilder<S, BlockingExtensions> where
    S: Subscriber + Send + Sync, 

pub fn on_closure<R>(self, closure: impl FnOnce() -> R) -> R

Runs the provided closure in the context of a subscriber layered with a TreeLayer.