Struct tracing_subscriber::fmt::writer::WithFilter
source · [−]pub struct WithFilter<M, F> { /* private fields */ }Expand description
A MakeWriter combinator that wraps a MakeWriter with a predicate for
span and event Metadata, so that the [MakeWriterExt::make_writer_for]
method returns OptionalWriter::some when the predicate returns true,
and OptionalWriter::none when the predicate returns false.
This is returned by the MakeWriterExt::with_filter method. See the
method documentation for details.
Implementations
sourceimpl<M, F> WithFilter<M, F>
impl<M, F> WithFilter<M, F>
sourcepub fn new(make: M, filter: F) -> Self where
F: Fn(&Metadata<'_>) -> bool,
pub fn new(make: M, filter: F) -> Self where
F: Fn(&Metadata<'_>) -> bool,
Wraps make with the provided filter, returning a MakeWriter that
will call make.make_writer_for() when filter returns true for a
span or event’s Metadata, and returns a sink otherwise.
See MakeWriterExt::with_filter for details.
Trait Implementations
sourceimpl<M: Clone, F: Clone> Clone for WithFilter<M, F>
impl<M: Clone, F: Clone> Clone for WithFilter<M, F>
sourcefn clone(&self) -> WithFilter<M, F>
fn clone(&self) -> WithFilter<M, F>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source. Read more
sourceimpl<M: Debug, F: Debug> Debug for WithFilter<M, F>
impl<M: Debug, F: Debug> Debug for WithFilter<M, F>
sourceimpl<M, F> MakeWriter for WithFilter<M, F> where
M: MakeWriter,
F: Fn(&Metadata<'_>) -> bool,
impl<M, F> MakeWriter for WithFilter<M, F> where
M: MakeWriter,
F: Fn(&Metadata<'_>) -> bool,
type Writer = OptionalWriter<M::Writer>
type Writer = OptionalWriter<M::Writer>
The concrete io::Write implementation returned by make_writer. Read more
sourcefn make_writer(&self) -> Self::Writer
fn make_writer(&self) -> Self::Writer
sourceimpl<M: PartialEq, F: PartialEq> PartialEq<WithFilter<M, F>> for WithFilter<M, F>
impl<M: PartialEq, F: PartialEq> PartialEq<WithFilter<M, F>> for WithFilter<M, F>
sourcefn eq(&self, other: &WithFilter<M, F>) -> bool
fn eq(&self, other: &WithFilter<M, F>) -> bool
This method tests for self and other values to be equal, and is used
by ==. Read more
sourcefn ne(&self, other: &WithFilter<M, F>) -> bool
fn ne(&self, other: &WithFilter<M, F>) -> bool
This method tests for !=.
impl<M: Copy, F: Copy> Copy for WithFilter<M, F>
impl<M: Eq, F: Eq> Eq for WithFilter<M, F>
impl<M, F> StructuralEq for WithFilter<M, F>
impl<M, F> StructuralPartialEq for WithFilter<M, F>
Auto Trait Implementations
impl<M, F> RefUnwindSafe for WithFilter<M, F> where
F: RefUnwindSafe,
M: RefUnwindSafe,
impl<M, F> Send for WithFilter<M, F> where
F: Send,
M: Send,
impl<M, F> Sync for WithFilter<M, F> where
F: Sync,
M: Sync,
impl<M, F> Unpin for WithFilter<M, F> where
F: Unpin,
M: Unpin,
impl<M, F> UnwindSafe for WithFilter<M, F> where
F: UnwindSafe,
M: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Instruments this type with the provided Span, returning an
Instrumented wrapper. Read more
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<M> MakeWriterExt for M where
M: MakeWriter,
impl<M> MakeWriterExt for M where
M: MakeWriter,
sourcefn with_max_level(self, level: Level) -> WithMaxLevel<Self> where
Self: Sized,
fn with_max_level(self, level: Level) -> WithMaxLevel<Self> where
Self: Sized,
Wraps self and returns a MakeWriter that will only write output
for events at or below the provided verbosity Level. For instance,
Level::TRACE is considered to be _more verbosethanLevel::INFO`. Read more
sourcefn with_min_level(self, level: Level) -> WithMinLevel<Self> where
Self: Sized,
fn with_min_level(self, level: Level) -> WithMinLevel<Self> where
Self: Sized,
Wraps self and returns a MakeWriter that will only write output
for events at or above the provided verbosity Level. Read more
sourcefn with_filter<F>(self, filter: F) -> WithFilter<Self, F> where
Self: Sized,
F: Fn(&Metadata<'_>) -> bool,
fn with_filter<F>(self, filter: F) -> WithFilter<Self, F> where
Self: Sized,
F: Fn(&Metadata<'_>) -> bool,
Wraps self with a predicate that takes a span or event’s Metadata
and returns a bool. The returned MakeWriter’s
MakeWriter::make_writer_for method will check the predicate to
determine if a writer should be produced for a given span or event. Read more
sourcefn and<B>(self, other: B) -> Tee<Self, B>ⓘNotable traits for Tee<A, B>impl<A, B> Write for Tee<A, B> where
A: Write,
B: Write, where
Self: Sized,
B: MakeWriter + Sized,
fn and<B>(self, other: B) -> Tee<Self, B>ⓘNotable traits for Tee<A, B>impl<A, B> Write for Tee<A, B> where
A: Write,
B: Write, where
Self: Sized,
B: MakeWriter + Sized,
A: Write,
B: Write,
Combines self with another type implementing MakeWriter, returning
a new MakeWriter that produces [writers] that write to both
outputs. Read more
sourcefn or_else<W, B>(self, other: B) -> OrElse<Self, B> where
Self: MakeWriter<Writer = OptionalWriter<W>> + Sized,
B: MakeWriter + Sized,
W: Write,
fn or_else<W, B>(self, other: B) -> OrElse<Self, B> where
Self: MakeWriter<Writer = OptionalWriter<W>> + Sized,
B: MakeWriter + Sized,
W: Write,
Combines self with another type implementing MakeWriter, returning
a new MakeWriter that calls other’s [make_writer] if self’s
make_writer returns OptionalWriter::none. Read more