Struct tracing::level_filters::LevelFilter

pub struct LevelFilter(_);

A filter comparable to trace 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.

Methods

impl LevelFilter

pub const OFF: LevelFilter

The "off" level.

Designates that trace instrumentation should be completely disabled.

pub const ERROR: LevelFilter

The "error" level.

Designates very serious errors.

pub const WARN: LevelFilter

The "warn" level.

Designates hazardous situations.

pub const INFO: LevelFilter

The "info" level.

Designates useful information.

pub const DEBUG: LevelFilter

The "debug" level.

Designates lower priority information.

pub const TRACE: LevelFilter

The "trace" level.

Designates very low priority, often extremely verbose, information.

Trait Implementations

impl Clone for LevelFilter

fn clone(&self) -> LevelFilter

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Ord for LevelFilter

fn cmp(&self, other: &LevelFilter) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialOrd<LevelFilter> for LevelFilter

fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>

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

fn lt(&self, other: &LevelFilter) -> bool

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

fn le(&self, other: &LevelFilter) -> bool

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

fn gt(&self, other: &LevelFilter) -> bool

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

fn ge(&self, other: &LevelFilter) -> bool

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

impl PartialOrd<LevelFilter> for Level

fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>

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

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

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

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

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

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

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

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

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

impl PartialEq<LevelFilter> for LevelFilter

fn eq(&self, other: &LevelFilter) -> bool

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

fn ne(&self, other: &LevelFilter) -> bool

This method tests for !=.

impl PartialEq<LevelFilter> for Level

fn eq(&self, other: &LevelFilter) -> bool

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

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

This method tests for !=.

impl Eq for LevelFilter

impl Debug for LevelFilter

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

Formats the value using the given formatter.