Struct tracing::level_filters::LevelFilter[][src]

#[repr(transparent)]
pub struct LevelFilter(_);

A filter comparable to a verbosity Level.

If a Level is considered less than a LevelFilter, it should be considered disabled; if greater than or equal to the LevelFilter, that level is enabled.

Note that this is essentially identical to the Level type, but with the addition of an OFF level that completely disables all trace instrumentation.

Implementations

impl LevelFilter[src]

pub const OFF: LevelFilter[src]

The “off” level.

Designates that trace instrumentation should be completely disabled.

pub const ERROR: LevelFilter[src]

The “error” level.

Designates very serious errors.

pub const WARN: LevelFilter[src]

The “warn” level.

Designates hazardous situations.

pub const INFO: LevelFilter[src]

The “info” level.

Designates useful information.

pub const DEBUG: LevelFilter[src]

The “debug” level.

Designates lower priority information.

pub const TRACE: LevelFilter[src]

The “trace” level.

Designates very low priority, often extremely verbose, information.

pub const fn from_level(level: Level) -> LevelFilter[src]

Returns a LevelFilter that enables spans and events with verbosity up to and including level.

pub const fn into_level(self) -> Option<Level>[src]

Returns the most verbose Level that this filter accepts, or None if it is OFF.

pub fn current() -> LevelFilter[src]

Returns a LevelFilter that matches the most verbose Level that any currently active collector will enable.

User code should treat this as a hint. If a given span or event has a level higher than the returned LevelFilter, it will not be enabled. However, if the level is less than or equal to this value, the span or event is not guaranteed to be enabled; the collector will still filter each callsite individually.

Therefore, comparing a given span or event’s level to the returned LevelFilter can be used for determining if something is disabled, but should not be used for determining if something is enabled.`

Trait Implementations

impl Clone for LevelFilter[src]

pub fn clone(&self) -> LevelFilter[src]

Returns a copy of the value. Read more

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Debug for LevelFilter[src]

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[src]

Formats the value using the given formatter. Read more

impl Display for LevelFilter[src]

pub fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[src]

Formats the value using the given formatter. Read more

impl From<Level> for LevelFilter[src]

pub fn from(level: Level) -> LevelFilter[src]

Performs the conversion.

impl From<Option<Level>> for LevelFilter[src]

pub fn from(level: Option<Level>) -> LevelFilter[src]

Performs the conversion.

impl FromStr for LevelFilter[src]

type Err = ParseLevelFilterError

The associated error which can be returned from parsing.

pub fn from_str(
    from: &str
) -> Result<LevelFilter, <LevelFilter as FromStr>::Err>
[src]

Parses a string s to return a value of this type. Read more

impl Ord for LevelFilter[src]

pub fn cmp(&self, other: &LevelFilter) -> Ordering[src]

This method returns an Ordering between self and other. Read more

#[must_use]
fn max(self, other: Self) -> Self
1.21.0[src]

Compares and returns the maximum of two values. Read more

#[must_use]
fn min(self, other: Self) -> Self
1.21.0[src]

Compares and returns the minimum of two values. Read more

#[must_use]
fn clamp(self, min: Self, max: Self) -> Self
1.50.0[src]

Restrict a value to a certain interval. Read more

impl PartialEq<Level> for LevelFilter[src]

pub fn eq(&self, other: &Level) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

#[must_use]
fn ne(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests for !=.

impl PartialEq<LevelFilter> for Level[src]

pub fn eq(&self, other: &LevelFilter) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

#[must_use]
fn ne(&self, other: &Rhs) -> bool
1.0.0[src]

This method tests for !=.

impl PartialEq<LevelFilter> for LevelFilter[src]

pub fn eq(&self, other: &LevelFilter) -> bool[src]

This method tests for self and other values to be equal, and is used by ==. Read more

pub fn ne(&self, other: &LevelFilter) -> bool[src]

This method tests for !=.

impl PartialOrd<Level> for LevelFilter[src]

pub fn partial_cmp(&self, other: &Level) -> Option<Ordering>[src]

This method returns an ordering between self and other values if one exists. Read more

pub fn lt(&self, other: &Level) -> bool[src]

This method tests less than (for self and other) and is used by the < operator. Read more

pub fn le(&self, other: &Level) -> bool[src]

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

pub fn gt(&self, other: &Level) -> bool[src]

This method tests greater than (for self and other) and is used by the > operator. Read more

pub fn ge(&self, other: &Level) -> bool[src]

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl PartialOrd<LevelFilter> for LevelFilter[src]

pub fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>[src]

This method returns an ordering between self and other values if one exists. Read more

pub fn lt(&self, other: &LevelFilter) -> bool[src]

This method tests less than (for self and other) and is used by the < operator. Read more

pub fn le(&self, other: &LevelFilter) -> bool[src]

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

pub fn gt(&self, other: &LevelFilter) -> bool[src]

This method tests greater than (for self and other) and is used by the > operator. Read more

pub fn ge(&self, other: &LevelFilter) -> bool[src]

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl PartialOrd<LevelFilter> for Level[src]

pub fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>[src]

This method returns an ordering between self and other values if one exists. Read more

pub fn lt(&self, other: &LevelFilter) -> bool[src]

This method tests less than (for self and other) and is used by the < operator. Read more

pub fn le(&self, other: &LevelFilter) -> bool[src]

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

pub fn gt(&self, other: &LevelFilter) -> bool[src]

This method tests greater than (for self and other) and is used by the > operator. Read more

pub fn ge(&self, other: &LevelFilter) -> bool[src]

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Copy for LevelFilter[src]

impl Eq for LevelFilter[src]

impl StructuralEq for LevelFilter[src]

impl StructuralPartialEq for LevelFilter[src]

Auto Trait Implementations

impl RefUnwindSafe for LevelFilter

impl Send for LevelFilter

impl Sync for LevelFilter

impl Unpin for LevelFilter

impl UnwindSafe for LevelFilter

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

impl<T> Instrument for T[src]

fn instrument(self, span: Span) -> Instrumented<Self>

Notable traits for Instrumented<T>

impl<T: Future> Future for Instrumented<T> type Output = T::Output;
[src]

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Notable traits for Instrumented<T>

impl<T: Future> Future for Instrumented<T> type Output = T::Output;
[src]

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

pub fn to_owned(&self) -> T[src]

Creates owned data from borrowed data, usually by cloning. Read more

pub fn clone_into(&self, target: &mut T)[src]

🔬 This is a nightly-only experimental API. (toowned_clone_into #41263)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T where
    T: Display + ?Sized
[src]

pub default fn to_string(&self) -> String[src]

Converts the given value to a String. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.