Struct tracing_subscriber::fmt::writer::WithMinLevel
source · [−]pub struct WithMinLevel<M> { /* private fields */ }
Expand description
A MakeWriter
combinator that only returns an enabled writer for spans
and events with metadata at or above a specified verbosity Level
.
This is returned by the MakeWriterExt::with_min_level
method. See the
method documentation for details.
Implementations
Wraps the provided MakeWriter
with a minimum Level
, so that it
returns OptionalWriter::none
for spans and events whose level is
less verbose than the maximum level.
See MakeWriterExt::with_min_level
for details.
Trait Implementations
type Writer = OptionalWriter<M::Writer>
type Writer = OptionalWriter<M::Writer>
The concrete io::Write
implementation returned by make_writer
. Read more
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl<M> RefUnwindSafe for WithMinLevel<M> where
M: RefUnwindSafe,
impl<M> Send for WithMinLevel<M> where
M: Send,
impl<M> Sync for WithMinLevel<M> where
M: Sync,
impl<M> Unpin for WithMinLevel<M> where
M: Unpin,
impl<M> UnwindSafe for WithMinLevel<M> where
M: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
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 verbosethan
Level::INFO`. Read more
Wraps self
and returns a MakeWriter
that will only write output
for events at or above the provided verbosity Level
. Read more
fn 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
Combines self
with another type implementing MakeWriter
, returning
a new MakeWriter
that produces writers that write to both
outputs. Read more
fn 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
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more