Trait Metric

pub trait Metric<R>:
    Default
    + OnResultMut<R>
    + Clear
    + Serialize { }

A trait to implement to be used in the measure! macro

Metrics wrap expressions to measure them.

The return type, R, of the expression can be captured to perform special handling.

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<C: Counter, R> Metric<R> for HitCount<C>

impl<C: Counter, T, E> Metric<Result<T, E>> for ErrorCount<C>

impl<G: Gauge, R> Metric<R> for InFlight<G>

impl<H: Histogram, T: Instant, R> Metric<R> for ResponseTime<H, T>

impl<P: RecordThroughput + Serialize + Clear, T: Instant, R> Metric<R> for Throughput<T, P>