Struct tracing_subscriber::registry::Data

pub struct Data<'a> { /* fields omitted */ }

This is supported on crate feature registry only.

Span data stored in a Registry.

The registry stores well-known data defined by tracing: span relationships, metadata and reference counts. Additional user-defined data provided by Layers, such as formatted fields, metrics, or distributed traces should be stored in the extensions typemap.

Trait Implementations

impl<'a> Debug for Data<'a>

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

Formats the value using the given formatter.

impl<'a> SpanData<'a> for Data<'a>

fn id(&self) -> Id

Returns this span’s ID.

fn metadata(&self) -> &'static Metadata<'static>

Returns a reference to the span’s Metadata.

fn parent(&self) -> Option<&Id>

Returns a reference to the ID

fn extensions(&self) -> Extensions<'_>

Returns a reference to this span’s Extensions.

fn extensions_mut(&self) -> ExtensionsMut<'_>

Returns a mutable reference to this span’s Extensions.

fn is_enabled_for(&self, filter: FilterId) -> bool

This is supported on crate feature registry only.

Returns true if this span is enabled for the per-layer filter corresponding to the provided FilterId.