pub struct LevelFilter(/* private fields */);
Expand description
A filter comparable to a verbosity Level
.
If a Level
is considered less than or equal to a LevelFilter
, it
should be considered enabled; if greater than the LevelFilter
, that level
is disabled. See LevelFilter::current
for more details.
Note that this is essentially identical to the Level
type, but with the
addition of an OFF
level that completely disables all trace
instrumentation.
See the documentation for the Level
type to see how Level
s
and LevelFilter
s interact.
Implementationsยง
Sourceยงimpl LevelFilter
impl LevelFilter
Sourcepub const OFF: LevelFilter
pub const OFF: LevelFilter
The โoffโ level.
Designates that trace instrumentation should be completely disabled.
Sourcepub const ERROR: LevelFilter
pub const ERROR: LevelFilter
The โerrorโ level.
Designates very serious errors.
Sourcepub const WARN: LevelFilter
pub const WARN: LevelFilter
The โwarnโ level.
Designates hazardous situations.
Sourcepub const INFO: LevelFilter
pub const INFO: LevelFilter
The โinfoโ level.
Designates useful information.
Sourcepub const DEBUG: LevelFilter
pub const DEBUG: LevelFilter
The โdebugโ level.
Designates lower priority information.
Sourcepub const TRACE: LevelFilter
pub const TRACE: LevelFilter
The โtraceโ level.
Designates very low priority, often extremely verbose, information.
Sourcepub const fn from_level(level: Level) -> LevelFilter
pub const fn from_level(level: Level) -> LevelFilter
Returns a LevelFilter
that enables spans and events with verbosity up
to and including level
.
Sourcepub const fn into_level(self) -> Option<Level>
pub const fn into_level(self) -> Option<Level>
Sourcepub fn current() -> LevelFilter
pub fn current() -> LevelFilter
Returns a LevelFilter
that matches the most verbose Level
that any
currently active collector will enable.
User code should treat this as a hint. If a given span or event has a
level higher than the returned LevelFilter
, it will not be enabled.
However, if the level is less than or equal to this value, the span or
event is not guaranteed to be enabled; the collector will still
filter each callsite individually.
Therefore, comparing a given span or eventโs level to the returned
LevelFilter
can be used for determining if something is
disabled, but should not be used for determining if something is
enabled.
Trait Implementationsยง
Sourceยงimpl Clone for LevelFilter
impl Clone for LevelFilter
Sourceยงfn clone(&self) -> LevelFilter
fn clone(&self) -> LevelFilter
1.0.0 ยท Sourceยงfn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSourceยงimpl Debug for LevelFilter
impl Debug for LevelFilter
Sourceยงimpl Display for LevelFilter
impl Display for LevelFilter
Sourceยงimpl From<Level> for LevelFilter
impl From<Level> for LevelFilter
Sourceยงfn from(level: Level) -> LevelFilter
fn from(level: Level) -> LevelFilter
Sourceยงimpl FromStr for LevelFilter
impl FromStr for LevelFilter
Sourceยงtype Err = ParseLevelFilterError
type Err = ParseLevelFilterError
Sourceยงfn from_str(from: &str) -> Result<LevelFilter, <LevelFilter as FromStr>::Err>
fn from_str(from: &str) -> Result<LevelFilter, <LevelFilter as FromStr>::Err>
s
to return a value of this type. Read moreSourceยงimpl Hash for LevelFilter
impl Hash for LevelFilter
Sourceยงimpl Ord for LevelFilter
impl Ord for LevelFilter
Sourceยงfn cmp(&self, other: &LevelFilter) -> Ordering
fn cmp(&self, other: &LevelFilter) -> Ordering
1.21.0 ยท Sourceยงfn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Sourceยงimpl PartialEq<Level> for LevelFilter
impl PartialEq<Level> for LevelFilter
Sourceยงimpl PartialEq<LevelFilter> for Level
impl PartialEq<LevelFilter> for Level
Sourceยงimpl PartialEq for LevelFilter
impl PartialEq for LevelFilter
Sourceยงimpl PartialOrd<Level> for LevelFilter
impl PartialOrd<Level> for LevelFilter
Sourceยงimpl PartialOrd<LevelFilter> for Level
impl PartialOrd<LevelFilter> for Level
Sourceยงfn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
Sourceยงfn lt(&self, other: &LevelFilter) -> bool
fn lt(&self, other: &LevelFilter) -> bool
Sourceยงfn le(&self, other: &LevelFilter) -> bool
fn le(&self, other: &LevelFilter) -> bool
Sourceยงfn gt(&self, other: &LevelFilter) -> bool
fn gt(&self, other: &LevelFilter) -> bool
Sourceยงimpl PartialOrd for LevelFilter
impl PartialOrd for LevelFilter
Sourceยงfn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>
Sourceยงfn lt(&self, other: &LevelFilter) -> bool
fn lt(&self, other: &LevelFilter) -> bool
Sourceยงfn le(&self, other: &LevelFilter) -> bool
fn le(&self, other: &LevelFilter) -> bool
Sourceยงfn gt(&self, other: &LevelFilter) -> bool
fn gt(&self, other: &LevelFilter) -> bool
impl Copy for LevelFilter
impl Eq for LevelFilter
impl StructuralPartialEq for LevelFilter
Auto Trait Implementationsยง
impl Freeze for LevelFilter
impl RefUnwindSafe for LevelFilter
impl Send for LevelFilter
impl Sync for LevelFilter
impl Unpin for LevelFilter
impl UnwindSafe for LevelFilter
Blanket Implementationsยง
Sourceยงimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Sourceยงfn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Sourceยงimpl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Sourceยงimpl<T> Instrument for T
impl<T> Instrument for T
Sourceยงfn instrument(self, span: Span) -> Instrumented<Self> โ
fn instrument(self, span: Span) -> Instrumented<Self> โ
Sourceยงfn in_current_span(self) -> Instrumented<Self> โ
fn in_current_span(self) -> Instrumented<Self> โ
Sourceยงimpl<T> WithCollector for T
impl<T> WithCollector for T
Sourceยงfn with_collector<C>(self, collector: C) -> WithDispatch<Self> โ
fn with_collector<C>(self, collector: C) -> WithDispatch<Self> โ
std
only.Sourceยงfn with_current_collector(self) -> WithDispatch<Self> โ
fn with_current_collector(self) -> WithDispatch<Self> โ
std
only.