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Struct sc_tracing::logging::PrefixLayer

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pub struct PrefixLayer;
Expand description

A Layer that captures the prefix span (PREFIX_LOG_SPAN) which is then used by crate::logging::EventFormat to prefix the log lines by customizable string.

See the macro sc_cli::prefix_logs_with! for more details.

Trait Implementations§

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impl<S> Layer<S> for PrefixLayer
where S: Subscriber + for<'a> LookupSpan<'a>,

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fn on_new_span(&self, attrs: &Attributes<'_>, id: &Id, ctx: Context<'_, S>)

Notifies this layer that a new span was constructed with the given Attributes and Id.
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fn on_register_dispatch(&self, subscriber: &Dispatch)

Performs late initialization when installing this layer as a Subscriber. Read more
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fn on_layer(&mut self, subscriber: &mut S)

Performs late initialization when attaching a Layer to a [Subscriber]. Read more
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fn register_callsite(&self, metadata: &'static Metadata<'static>) -> Interest

Registers a new callsite with this layer, returning whether or not the layer is interested in being notified about the callsite, similarly to Subscriber::register_callsite. Read more
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fn enabled(&self, metadata: &Metadata<'_>, ctx: Context<'_, S>) -> bool

Returns true if this layer is interested in a span or event with the given metadata in the current [Context], similarly to Subscriber::enabled. Read more
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fn on_record(&self, _span: &Id, _values: &Record<'_>, _ctx: Context<'_, S>)

Notifies this layer that a span with the given Id recorded the given values.
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fn on_follows_from(&self, _span: &Id, _follows: &Id, _ctx: Context<'_, S>)

Notifies this layer that a span with the ID span recorded that it follows from the span with the ID follows.
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fn event_enabled(&self, _event: &Event<'_>, _ctx: Context<'_, S>) -> bool

Called before on_event, to determine if on_event should be called. Read more
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fn on_event(&self, _event: &Event<'_>, _ctx: Context<'_, S>)

Notifies this layer that an event has occurred.
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fn on_enter(&self, _id: &Id, _ctx: Context<'_, S>)

Notifies this layer that a span with the given ID was entered.
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fn on_exit(&self, _id: &Id, _ctx: Context<'_, S>)

Notifies this layer that the span with the given ID was exited.
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fn on_close(&self, _id: Id, _ctx: Context<'_, S>)

Notifies this layer that the span with the given ID has been closed.
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fn on_id_change(&self, _old: &Id, _new: &Id, _ctx: Context<'_, S>)

Notifies this layer that a span ID has been cloned, and that the subscriber returned a different ID.
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fn and_then<L>(self, layer: L) -> Layered<L, Self, S>
where L: Layer<S>, Self: Sized,

Composes this layer around the given Layer, returning a Layered struct implementing Layer. Read more
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fn with_subscriber(self, inner: S) -> Layered<Self, S>
where Self: Sized,

Composes this Layer with the given Subscriber, returning a Layered struct that implements Subscriber. Read more
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fn with_filter<F>(self, filter: F) -> Filtered<Self, F, S>
where Self: Sized, F: Filter<S>,

Combines self with a [Filter], returning a Filtered layer. Read more
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fn boxed(self) -> Box<dyn Layer<S> + Send + Sync>
where Self: Sized + Layer<S> + Send + Sync + 'static, S: Subscriber,

Erases the type of this [Layer], returning a Boxed dyn Layer trait object. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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fn checked_from<T>(t: T) -> Option<Self>
where Self: TryFrom<T>,

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fn conv<T>(self) -> T
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Converts self into T using Into<T>. Read more
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fn fmt_binary(self) -> FmtBinary<Self>
where Self: Binary,

Causes self to use its Binary implementation when Debug-formatted.
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fn fmt_display(self) -> FmtDisplay<Self>
where Self: Display,

Causes self to use its Display implementation when Debug-formatted.
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fn fmt_lower_exp(self) -> FmtLowerExp<Self>
where Self: LowerExp,

Causes self to use its LowerExp implementation when Debug-formatted.
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fn fmt_lower_hex(self) -> FmtLowerHex<Self>
where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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fn fmt_octal(self) -> FmtOctal<Self>
where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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fn fmt_pointer(self) -> FmtPointer<Self>
where Self: Pointer,

Causes self to use its Pointer implementation when Debug-formatted.
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fn fmt_upper_exp(self) -> FmtUpperExp<Self>
where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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fn fmt_upper_hex(self) -> FmtUpperHex<Self>
where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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fn fmt_list(self) -> FmtList<Self>
where &'a Self: for<'a> IntoIterator,

Formats each item in a sequence. Read more
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fn from(t: T) -> T

Returns the argument unchanged.

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

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Calls U::from(self).

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
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Pipes by value. This is generally the method you want to use. Read more
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where R: 'a,

Borrows self and passes that borrow into the pipe function. Read more
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where Self: Borrow<B>, B: 'a + ?Sized, R: 'a,

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where Self: BorrowMut<B>, B: 'a + ?Sized, R: 'a,

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where Self: AsRef<U>, U: 'a + ?Sized, R: 'a,

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where Self: AsMut<U>, U: 'a + ?Sized, R: 'a,

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where Self: Deref<Target = T>, T: 'a + ?Sized, R: 'a,

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where Self: DerefMut<Target = T> + Deref, T: 'a + ?Sized, R: 'a,

Mutably borrows self, then passes self.deref_mut() into the pipe function.
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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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type Output = T

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fn saturated_from<T>(t: T) -> Self
where Self: UniqueSaturatedFrom<T>,

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fn tap(self, func: impl FnOnce(&Self)) -> Self

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where Self: Borrow<B>, B: ?Sized,

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where Self: DerefMut<Target = T> + Deref, T: ?Sized,

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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
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