Struct Empty 

pub struct Empty;

Marks a span field as declared but not yet valued.

Re-exported so a runtime can declare a contract field through completion_parent_span! without taking a direct tracing dependency — the crate’s own __tracing path is hidden, and Option::<&str>::None is the only other portable spelling. rig-core already exposes tracing types across this module’s public API (CompletionSpanBuilder::build returns a tracing::Span), so this adds no new semver surface. An empty field.

This can be used to indicate that the value of a field is not currently present but will be recorded later.

When a field’s value is Empty. it will not be recorded.

Trait Implementations

impl Debug for Empty

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

Formats the value using the given formatter.

impl Eq for Empty

impl PartialEq for Empty

fn eq(&self, other: &Empty) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Empty

impl Value for Empty

fn record(&self, _: &Field, _: &mut dyn Visit)

Visits this value with the given Visitor.