Enum log::Level

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#[repr(usize)]pub enum Level {
    Error,
    Warn,
    Info,
    Debug,
    Trace,
}

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An enum representing the available verbosity levels of the logger.

Typical usage includes: checking if a certain Level is enabled with log_enabled!, specifying the Level of log!, and comparing a Level directly to a LevelFilter.

Variants

Error

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The "error" level.

Designates very serious errors.

Warn

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The "warn" level.

Designates hazardous situations.

Info

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The "info" level.

Designates useful information.

Debug

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The "debug" level.

Designates lower priority information.

Trace

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The "trace" level.

Designates very low priority, often extremely verbose, information.

Implementations

impl Level[−]

pub fn max() -> Level[−]

Returns the most verbose logging level.

pub fn to_level_filter(&self) -> LevelFilter[−]

Converts the Level to the equivalent LevelFilter.

Trait Implementations

impl Clone for Level[+]

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fn clone(&self) -> Level[−]

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Level

impl Debug for Level[+]

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

Formats the value using the given formatter.

impl Display for Level[+]

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

Formats the value using the given formatter.

impl Eq for Level

impl FromStr for Level[+]

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type Err = ParseLevelError

The associated error which can be returned from parsing.

fn from_str(level: &str) -> Result<Level, Self::Err>[−]

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

impl Hash for Level[+]

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fn hash<__H: Hasher>(&self, state: &mut __H)[−]

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, [−]

Feeds a slice of this type into the given [Hasher].

impl Ord for Level[+]

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fn cmp(&self, other: &Level) -> Ordering[−]

This method returns an [Ordering] between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

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

Restrict a value to a certain interval.

impl PartialEq<Level> for Level[+]

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

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

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

This method tests for !=.

impl PartialEq<Level> for LevelFilter[+]

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

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

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

This method tests for !=.

impl PartialEq<LevelFilter> for Level[+]

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

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

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

This method tests for !=.

impl PartialOrd<Level> for Level[+]

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

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

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

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

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

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

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

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

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

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

impl PartialOrd<Level> for LevelFilter[+]

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

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

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

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

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

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

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

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

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

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

impl PartialOrd<LevelFilter> for Level[+]

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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 StructuralEq for Level