Struct metrics::NoopRecorder

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pub struct NoopRecorder;

Expand description

A no-op recorder.

Used as the default recorder when one has not been installed yet. Useful for acting as the root recorder when testing layers.

Trait Implementations

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impl Recorder for NoopRecorder

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fn describe_counter(
 &self,
 _key: KeyName,
 _unit: Option<Unit>,
 _description: &'static str
)

Describes a counter. Read more

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fn describe_gauge(
 &self,
 _key: KeyName,
 _unit: Option<Unit>,
 _description: &'static str
)

Describes a gauge. Read more

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fn describe_histogram(
 &self,
 _key: KeyName,
 _unit: Option<Unit>,
 _description: &'static str
)

Describes a histogram. Read more

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fn register_counter(&self, _key: &Key) -> Counter

Registers a counter.

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fn register_gauge(&self, _key: &Key) -> Gauge

Registers a gauge.

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fn register_histogram(&self, _key: &Key) -> Histogram

Registers a histogram.

Auto Trait Implementations

impl RefUnwindSafe for NoopRecorder

impl Send for NoopRecorder

impl Sync for NoopRecorder

impl Unpin for NoopRecorder

impl UnwindSafe for NoopRecorder

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct metrics::NoopRecorder

Trait Implementations

impl Recorder for NoopRecorder

fn describe_counter(
    &self,
    _key: KeyName,
    _unit: Option<Unit>,
    _description: &'static str
)

fn describe_gauge(
    &self,
    _key: KeyName,
    _unit: Option<Unit>,
    _description: &'static str
)

fn describe_histogram(
    &self,
    _key: KeyName,
    _unit: Option<Unit>,
    _description: &'static str
)

fn register_counter(&self, _key: &Key) -> Counter

fn register_gauge(&self, _key: &Key) -> Gauge

fn register_histogram(&self, _key: &Key) -> Histogram

Auto Trait Implementations

impl RefUnwindSafe for NoopRecorder

impl Send for NoopRecorder

impl Sync for NoopRecorder

impl Unpin for NoopRecorder

impl UnwindSafe for NoopRecorder

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where
T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where
U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Struct metrics::NoopRecorder

Trait Implementations

impl Recorder for NoopRecorder

fn describe_counter( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str)

fn describe_gauge( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str)

fn describe_histogram( &self, _key: KeyName, _unit: Option<Unit>, _description: &'static str)

fn register_counter(&self, _key: &Key) -> Counter

fn register_gauge(&self, _key: &Key) -> Gauge

fn register_histogram(&self, _key: &Key) -> Histogram

Auto Trait Implementations

impl RefUnwindSafe for NoopRecorder

impl Send for NoopRecorder

impl Sync for NoopRecorder

impl Unpin for NoopRecorder

impl UnwindSafe for NoopRecorder

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

fn describe_counter(
&self,
_key: KeyName,
_unit: Option<Unit>,
_description: &'static str
)

fn describe_gauge(
&self,
_key: KeyName,
_unit: Option<Unit>,
_description: &'static str
)

fn describe_histogram(
&self,
_key: KeyName,
_unit: Option<Unit>,
_description: &'static str
)

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,