Struct SpanLink 

pub struct SpanLink { /* private fields */ }

A link between two spans in potentially different traces.

A link belongs to a span, and contains the TraceId and SpanId of the span being linked to. Links are usually created on the downstream span.

Links relate spans outside of the normal parent-child hierarchy. Links are largely informative and may not be understood by downstream consumers. In order to create a generic DAG out of span links, the spans would need to belong to separate traces, since the parent-child relationship is still required.

Implementations

impl SpanLink

pub const fn new(trace_id: TraceId, span_id: SpanId) -> Self

Create a new link to the target span.

pub fn try_from_str(s: &str) -> Result<Self, ParseLinkError>

Try parse a span link from a formatted representation.

pub fn parse(s: impl Display) -> Result<Self, ParseLinkError>

Try parse a span link from a formatted representation.

pub fn trace_id(&self) -> &TraceId

The TraceId of the linked span.

pub fn span_id(&self) -> &SpanId

The SpanId of the linked span.

Trait Implementations

impl Clone for SpanLink

fn clone(&self) -> SpanLink

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for SpanLink

impl Debug for SpanLink

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

Formats the value using the given formatter.

impl Display for SpanLink

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

Formats the value using the given formatter.

impl Eq for SpanLink

impl<'a> Extend<SpanLink> for SpanLinkSet

fn extend<I: IntoIterator<Item = SpanLink>>(&mut self, iter: I)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl<'a> FromIterator<SpanLink> for SpanLinkSet

fn from_iter<I: IntoIterator<Item = SpanLink>>(iter: I) -> Self

Creates a value from an iterator.

impl FromStr for SpanLink

type Err = ParseLinkError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<'v> FromValue<'v> for SpanLink

fn from_value(value: Value<'v>) -> Option<Self>

Perform the conversion.

impl Hash for SpanLink

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for SpanLink

fn cmp(&self, other: &SpanLink) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for SpanLink

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for SpanLink

fn partial_cmp(&self, other: &SpanLink) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for SpanLink

Available on crate feature serde only.

fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SpanLink

impl ToValue for SpanLink

fn to_value(&self) -> Value<'_>

Perform the conversion.

impl Value for SpanLink

Available on crate feature sval only.

fn stream<'sval, S: Stream<'sval> + ?Sized>( &'sval self, stream: &mut S, ) -> Result

Stream this value through a Stream.

fn tag(&self) -> Option<Tag>

Get the tag of this value, if there is one.

fn to_bool(&self) -> Option<bool>

Try convert this value into a boolean.

fn to_f32(&self) -> Option<f32>

Try convert this value into a 32bit binary floating point number.

fn to_f64(&self) -> Option<f64>

Try convert this value into a 64bit binary floating point number.

fn to_i8(&self) -> Option<i8>

Try convert this value into a signed 8bit integer.

fn to_i16(&self) -> Option<i16>

Try convert this value into a signed 16bit integer.

fn to_i32(&self) -> Option<i32>

Try convert this value into a signed 32bit integer.

fn to_i64(&self) -> Option<i64>

Try convert this value into a signed 64bit integer.

fn to_i128(&self) -> Option<i128>

Try convert this value into a signed 128bit integer.

fn to_u8(&self) -> Option<u8>

Try convert this value into an unsigned 8bit integer.

fn to_u16(&self) -> Option<u16>

Try convert this value into an unsigned 16bit integer.

fn to_u32(&self) -> Option<u32>

Try convert this value into an unsigned 32bit integer.

fn to_u64(&self) -> Option<u64>

Try convert this value into an unsigned 64bit integer.

fn to_u128(&self) -> Option<u128>

Try convert this value into an unsigned 128bit integer.

fn to_text(&self) -> Option<&str>

Try convert this value into a text string.

fn to_binary(&self) -> Option<&[u8]>

Try convert this value into a bitstring.