#[repr(usize)]
pub enum Level {
Error,
Warn,
Info,
Debug,
Trace,
}
Expand description
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.
Implementations
sourceimpl Level
impl Level
sourcepub fn to_level_filter(&self) -> LevelFilter
pub fn to_level_filter(&self) -> LevelFilter
Converts the Level
to the equivalent LevelFilter
.
sourcepub fn as_str(&self) -> &'static str
pub fn as_str(&self) -> &'static str
Returns the string representation of the Level
.
This returns the same string as the fmt::Display
implementation.
sourcepub fn iter() -> impl Iterator<Item = Self>
pub fn iter() -> impl Iterator<Item = Self>
Iterate through all supported logging levels.
The order of iteration is from more severe to less severe log messages.
Examples
use log::Level;
let mut levels = Level::iter();
assert_eq!(Some(Level::Error), levels.next());
assert_eq!(Some(Level::Trace), levels.last());
Trait Implementations
sourceimpl Hash for Level
impl Hash for Level
sourcefn hash<__H: Hasher>(&self, state: &mut __H)
fn hash<__H: Hasher>(&self, state: &mut __H)
Hasher
]. Read more1.3.0fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,
fn hash_slice<H>(data: &[Self], state: &mut H)where
H: Hasher,
Hasher
]. Read moresourceimpl Ord for Level
impl Ord for Level
sourceimpl PartialEq<LevelFilter> for Level
impl PartialEq<LevelFilter> for Level
sourcefn eq(&self, other: &LevelFilter) -> bool
fn eq(&self, other: &LevelFilter) -> bool
sourceimpl PartialOrd<Level> for Level
impl PartialOrd<Level> for Level
sourceimpl PartialOrd<Level> for LevelFilter
impl PartialOrd<Level> for LevelFilter
sourceimpl PartialOrd<LevelFilter> for Level
impl PartialOrd<LevelFilter> for Level
sourcefn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
1.0.0const fn lt(&self, other: &Rhs) -> bool
const fn lt(&self, other: &Rhs) -> bool
1.0.0const fn le(&self, other: &Rhs) -> bool
const fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read more