Struct Subscriber

pub struct Subscriber<D, S = Option<NoWriter>> { /* private fields */ }

Implementations

impl<D, S> Subscriber<D, S>

pub fn display_only(display: D) -> Self

where for<'a> D: MakeWriter<'a> + 'static, for<'a> S: MakeWriter<'a> + 'static + Default,

pub fn with_serial<S2>(self, port: S2) -> Subscriber<D, S2>

where for<'a> S2: MakeWriter<'a> + 'static,

Trait Implementations

impl<D, S> Collect for Subscriber<D, S>

where for<'a> D: MakeWriter<'a> + 'static, for<'a> <D as MakeWriter<'a>>::Writer: SetColor, for<'a> S: MakeWriter<'a> + 'static, for<'a> <S as MakeWriter<'a>>::Writer: SetColor,

fn enabled(&self, meta: &Metadata<'_>) -> bool

Returns true if a span or event with the specified metadata would be recorded.

fn new_span(&self, span: &Attributes<'_>) -> Id

Visit the construction of a new span, returning a new span ID for the span being constructed.

fn record(&self, _span: &Id, _values: &Record<'_>)

Record a set of values on a span.

fn record_follows_from(&self, _span: &Id, _follows: &Id)

Adds an indication that span follows from the span with the id follows.

fn event(&self, event: &Event<'_>)

Records that an Event has occurred.

fn enter(&self, span: &Id)

Records that a span has been entered.

fn exit(&self, span: &Id)

Records that a span has been exited.

fn current_span(&self) -> Current

Returns a type representing this collector’s view of the current span.

fn on_register_dispatch(&self, collector: &Dispatch)

Invoked when this collector becomes a [Dispatch].

fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest

Registers a new callsite with this collector, returning whether or not the collector is interested in being notified about the callsite.

fn max_level_hint(&self) -> Option<LevelFilter>

Returns the highest verbosity level that this Collector will enable, or None, if the collector does not implement level-based filtering or chooses not to implement this method.

fn event_enabled(&self, event: &Event<'_>) -> bool

Determine if an [Event] should be recorded.

fn clone_span(&self, id: &Id) -> Id

Notifies the collector that a span ID has been cloned.

fn drop_span(&self, _id: Id)

👎Deprecated since 0.1.2: use Collector::try_close instead

This method is deprecated.

fn try_close(&self, id: Id) -> bool

Notifies the collector that a span ID has been dropped, and returns true if there are now 0 IDs that refer to that span.

unsafe fn downcast_raw(&self, id: TypeId) -> Option<NonNull<()>>

If self is the same type as the provided TypeId, returns an untyped NonNull pointer to that type. Otherwise, returns None.

impl<D: Debug, S: Debug> Debug for Subscriber<D, S>

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

Formats the value using the given formatter.

impl<D> Default for Subscriber<D>

where for<'a> D: MakeWriter<'a> + 'static + Default, for<'a> <D as MakeWriter<'a>>::Writer: SetColor,

fn default() -> Self

Returns the “default value” for a type.