Enum log::Level

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

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

The "error" level.

Designates very serious errors.

Warn

The "warn" level.

Designates hazardous situations.

Info

The "info" level.

Designates useful information.

Debug

The "debug" level.

Designates lower priority information.

Trace

The "trace" level.

Designates very low priority, often extremely verbose, information.

Methods

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 PartialOrd<Level> for Level

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

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<Level> for LevelFilter

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 PartialEq<Level> for Level

fn eq(&self, other: &Level) -> 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 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 PartialEq<Level> for LevelFilter

fn eq(&self, other: &Level) -> 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 Ord for Level

fn cmp(&self, other: &Level) -> 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 Copy for Level

impl Clone for Level

fn clone(&self) -> Level

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for Level

impl Hash for Level

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 Display for Level

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

Formats the value using the given formatter.

impl Debug for Level

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

Formats the value using the given formatter.

impl FromStr for Level

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 Serialize for Level

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where
    S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'de> Deserialize<'de> for Level

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where
    D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.