Struct LevelFilter

pub struct LevelFilter(/* private fields */);

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.

Implementations

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 Debug for LevelFilter

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

Formats the value using the given formatter.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

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

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq<LevelFilter> for Level

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialEq for LevelFilter

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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.

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl PartialOrd 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: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl Eq for LevelFilter

impl StructuralPartialEq for LevelFilter