[−][src]Struct tracing_subscriber::filter::Filter
A Layer
which filters spans and events based on a set of filter
directives.
Methods
impl Filter
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pub const DEFAULT_ENV: &'static str
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The default environment variable used by Filter::from_default_env
and Filter::try_from_default_env
.
pub fn from_default_env() -> Self
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Returns a new Filter
from the value of the RUST_LOG
environment
variable, ignoring any invalid filter directives.
pub fn from_env<A: AsRef<str>>(env: A) -> Self
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Returns a new Filter
from the value of the given environment
variable, ignoring any invalid filter directives.
pub fn new<S: AsRef<str>>(dirs: S) -> Self
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Returns a new Filter
from the directives in the given string,
ignoring any that are invalid.
pub fn try_new<S: AsRef<str>>(dirs: S) -> Result<Self, ParseError>
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Returns a new Filter
from the directives in the given string,
or an error if any are invalid.
pub fn try_from_default_env() -> Result<Self, FromEnvError>
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Returns a new Filter
from the value of the RUST_LOG
environment
variable, or an error if the environment variable contains any invalid
filter directives.
pub fn try_from_env<A: AsRef<str>>(env: A) -> Result<Self, FromEnvError>
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Returns a new Filter
from the value of the given environment
variable, or an error if the environment variable is unset or contains
any invalid filter directives.
Trait Implementations
impl<S: Subscriber> Layer<S> for Filter
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fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest
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fn enabled(&self, metadata: &Metadata, _: Context<S>) -> bool
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fn new_span(&self, attrs: &Attributes, id: &Id, _: Context<S>)
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fn on_record(&self, id: &Id, values: &Record, _: Context<S>)
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fn on_enter(&self, id: &Id, _: Context<S>)
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fn on_exit(&self, id: &Id, _: Context<S>)
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fn on_close(&self, id: Id, _: Context<S>)
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fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<S>)
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Notifies this layer that a span with the ID span
recorded that it follows from the span with the ID follows
. Read more
fn on_event(&self, _event: &Event, _ctx: Context<S>)
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Notifies this layer that an event has occurred.
fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<S>)
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Notifies this layer that a span ID has been cloned, and that the subscriber returned a different ID. Read more
fn and_then<L>(self, layer: L) -> Layered<L, Self, S> where
L: Layer<S>,
Self: Sized,
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L: Layer<S>,
Self: Sized,
Composes this layer around the given Layer
, returning a Layered
struct implementing Layer
. Read more
fn with_subscriber(self, inner: S) -> Layered<Self, S> where
Self: Sized,
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Self: Sized,
Composes this Layer
with the given [Subscriber
], returning a Layered
struct that implements [Subscriber
]. Read more
impl<S> From<S> for Filter where
S: AsRef<str>,
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S: AsRef<str>,
impl Default for Filter
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impl Debug for Filter
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impl FromStr for Filter
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Auto Trait Implementations
impl Send for Filter
impl Unpin for Filter
impl Sync for Filter
impl UnwindSafe for Filter
impl RefUnwindSafe for Filter
Blanket Implementations
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,