#[repr(usize)]pub enum Level {
Error = 1,
Warn = 2,
Info = 3,
Debug = 4,
Trace = 5,
}
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 = 1
The “error” level.
Designates very serious errors.
Warn = 2
The “warn” level.
Designates hazardous situations.
Info = 3
The “info” level.
Designates useful information.
Debug = 4
The “debug” level.
Designates lower priority information.
Trace = 5
The “trace” level.
Designates very low priority, often extremely verbose, information.
Implementations§
source§impl 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 = Level>
pub fn iter() -> impl Iterator<Item = Level>
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§
source§impl Ord for Level
impl Ord for Level
source§impl PartialEq<Level> for LevelFilter
impl PartialEq<Level> for LevelFilter
source§impl PartialEq<LevelFilter> for Level
impl PartialEq<LevelFilter> for Level
source§fn eq(&self, other: &LevelFilter) -> bool
fn eq(&self, other: &LevelFilter) -> bool
self
and other
values to be equal, and is used
by ==
.source§impl PartialEq for Level
impl PartialEq for Level
source§impl PartialOrd<Level> for LevelFilter
impl PartialOrd<Level> for LevelFilter
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl PartialOrd<LevelFilter> for Level
impl PartialOrd<LevelFilter> for Level
source§fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl PartialOrd for Level
impl PartialOrd for Level
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moreimpl Copy for Level
impl Eq for Level
impl StructuralPartialEq for Level
Auto Trait Implementations§
impl Freeze for Level
impl RefUnwindSafe for Level
impl Send for Level
impl Sync for Level
impl Unpin for Level
impl UnwindSafe for Level
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> CheckedAs for T
impl<T> CheckedAs for T
source§fn checked_as<Dst>(self) -> Option<Dst>where
T: CheckedCast<Dst>,
fn checked_as<Dst>(self) -> Option<Dst>where
T: CheckedCast<Dst>,
source§impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
Src: CheckedCast<Dst>,
impl<Src, Dst> CheckedCastFrom<Src> for Dstwhere
Src: CheckedCast<Dst>,
source§fn checked_cast_from(src: Src) -> Option<Dst>
fn checked_cast_from(src: Src) -> Option<Dst>
§impl<Q, K> Comparable<K> for Q
impl<Q, K> Comparable<K> for Q
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.§impl<T> DowncastSync for T
impl<T> DowncastSync for T
§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T> IntoEither for T
impl<T> IntoEither for T
source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moresource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read more