Struct SpanGuard 

pub struct SpanGuard { /* private fields */ }

Guard for a tracing span.

When dropped, the span is automatically closed.

Implementations

impl SpanGuard

pub fn new(span: Span) -> Self

Create a new span guard from a tracing span.

pub fn noop() -> Self

Create a no-op span guard (for disabled observability).

pub fn set_attribute(&self, key: &str, value: &str)

Set an attribute on the span.

pub fn add_event(&self, name: &str, attributes: &[(&str, &str)])

Add an event to the span.

pub fn as_ref(&self) -> Option<&Span>

Get a reference to the underlying span.

Trait Implementations

impl Default for SpanGuard

fn default() -> Self

Returns the “default value” for a type.