Struct slog::Discard

pub struct Discard;

Drain discarding everything

/dev/null of Drains

Trait Implementations

impl Drain for Discard

type Ok = ()

Type returned by this drain

type Err = Never

Type of potential errors that can be returned by this Drain

fn log(&self, _: &Record, _: &OwnedKVList) -> Result<(), Never>

Handle one logging statement (Record)

fn is_enabled(&self, _1: Level) -> bool

Avoid: Check if messages at the specified log level are maybe enabled for this logger.

fn is_critical_enabled(&self) -> bool

Avoid: See is_enabled

fn is_error_enabled(&self) -> bool

Avoid: See is_enabled

fn is_warning_enabled(&self) -> bool

Avoid: See is_enabled

fn is_info_enabled(&self) -> bool

Avoid: See is_enabled

fn is_debug_enabled(&self) -> bool

Avoid: See is_enabled

fn is_trace_enabled(&self) -> bool

Avoid: See is_enabled

fn map<F, R>(self, f: F) -> R where
    Self: Sized,
    F: FnOnce(Self) -> R, 

Pass Drain through a closure, eg. to wrap into another Drain.

fn filter<F>(self, f: F) -> Filter<Self, F> where
    Self: Sized,
    F: FilterFn, 

Filter logging records passed to Drain

fn filter_level(self, level: Level) -> LevelFilter<Self> where
    Self: Sized, 

Filter logging records passed to Drain (by level)

fn map_err<F, E>(self, f: F) -> MapError<Self, E> where
    Self: Sized,
    F: MapErrFn<Self::Err, E>, 

Map logging errors returned by this drain

fn ignore_res(self) -> IgnoreResult<Self> where
    Self: Sized, 

Ignore results returned by this drain

fn fuse(self) -> Fuse<Self> where
    Self::Err: Debug,
    Self: Sized, 

Make Self panic when returning any errors

impl Debug for Discard

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

Formats the value using the given formatter.

impl Copy for Discard

impl Clone for Discard

fn clone(&self) -> Discard

Returns a copy of the value.

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

Performs copy-assignment from source.