Struct WithMaxLevel

pub struct WithMaxLevel<M> { /* private fields */ }

Available on crate features fmt and std only.

A MakeWriter combinator that only returns an enabled writer for spans and events with metadata at or below a specified verbosity Level.

This is returned by the `MakeWriterExt::with_max_level method. See the method documentation for details.

Implementations

impl<M> WithMaxLevel<M>

pub fn new(make: M, level: Level) -> Self

Wraps the provided MakeWriter with a maximum Level, so that it returns OptionalWriter::none for spans and events whose level is more verbose than the maximum level.

See MakeWriterExt::with_max_level for details.

Trait Implementations

impl<M: Clone> Clone for WithMaxLevel<M>

fn clone(&self) -> WithMaxLevel<M>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<M: Debug> Debug for WithMaxLevel<M>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a, M: MakeWriter<'a>> MakeWriter<'a> for WithMaxLevel<M>

type Writer = EitherWriter<<M as MakeWriter<'a>>::Writer, Sink>

The concrete io::Write implementation returned by make_writer.

fn make_writer(&'a self) -> Self::Writer

Returns an instance of Writer.

fn make_writer_for(&'a self, meta: &Metadata<'_>) -> Self::Writer

Returns a Writer for writing data from the span or event described by the provided Metadata.

impl<M: PartialEq> PartialEq for WithMaxLevel<M>

fn eq(&self, other: &WithMaxLevel<M>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<M: Copy> Copy for WithMaxLevel<M>

impl<M: Eq> Eq for WithMaxLevel<M>

impl<M> StructuralPartialEq for WithMaxLevel<M>