Struct Instrumented

pub struct Instrumented<T> { /* private fields */ }

A Future that has been instrumented with a tracing Span.

This type is returned by the Instrument extension trait. See that trait’s documentation for details.

Implementations

impl<T> Instrumented<T>

pub fn span(&self) -> &Span

Borrows the Span that this type is instrumented by.

pub fn span_mut(&mut self) -> &mut Span

Mutably borrows the Span that this type is instrumented by.

pub fn inner(&self) -> &T

Borrows the wrapped type.

pub fn inner_mut(&mut self) -> &mut T

Mutably borrows the wrapped type.

pub fn inner_pin_ref(self: Pin<&Self>) -> Pin<&T>

Get a pinned reference to the wrapped type.

pub fn inner_pin_mut(self: Pin<&mut Self>) -> Pin<&mut T>

Get a pinned mutable reference to the wrapped type.

pub fn into_inner(self) -> T

Consumes the Instrumented, returning the wrapped type.

Note that this drops the span.

Trait Implementations

impl<T: Clone> Clone for Instrumented<T>

fn clone(&self) -> Instrumented<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Instrumented<T>

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

Formats the value using the given formatter.

impl<T> Drop for Instrumented<T>

fn drop(&mut self)

Executes the destructor for this type.

impl<T: Future> Future for Instrumented<T>

type Output = <T as Future>::Output

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.

impl<'__pin, T> Unpin for Instrumented<T>

where PinnedFieldsOf<__Origin<'__pin, T>>: Unpin,

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.