Trait WithObserver 

pub trait WithObserver: Sized + Future {
    // Provided method
    fn with_observer(self, observer: Arc<dyn Observer>) -> Instrumented<Self>  { ... }
}

Public extension trait — .with_observer(o) on a future binds an observer override that follows the future across thread migration (per-task tier; spec 11 § 3.1).

Provided Methods

fn with_observer(self, observer: Arc<dyn Observer>) -> Instrumented<Self>

Bind a per-task observer override to the future.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<F> WithObserver for F

where F: Future,