Struct Span 

pub struct Span { /* private fields */ }

A no-op replacement for a rustracing Span.

Implementations

impl Span

pub fn inactive() -> Self

Return an inactive (no-op) span.

pub fn handle(&self) -> SpanHandle

Return a no-op handle.

pub fn child<F>(&self, _name: &'static str, _f: F) -> Span

where F: FnOnce(SpanOptionsPlaceholder) -> SpanOptionsPlaceholder,

No-op: create a child span.

pub fn set_tag<F: FnOnce() -> Tag>(&self, _f: F)

No-op: set a single tag via a closure.

pub fn set_tags<F, I>(&self, _f: F)

where F: FnOnce() -> I, I: IntoIterator<Item = Tag>,

No-op: set multiple tags via a closure.

pub fn set_finish_time<F: Fn() -> SystemTime>(&self, _f: F)

No-op: set a finish time.

Trait Implementations

impl Debug for Span

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

Formats the value using the given formatter.