Struct tracing_timing::group::ByField

pub struct ByField(pub Cow<'static, str>);

Group spans/events by the value of a particular field.

If a field by the contained name is found, its recorded value (usually its Debug value) is used as the grouping identifier. If the field is not found, an empty String is used.

Trait Implementations

impl SpanGroup for ByField

type Id = String

The type of the timing span group.

fn group(&self, a: &Attributes) -> Self::Id

Extract the group for this span's attributes.

impl EventGroup for ByField

type Id = String

The type of the timing event group.

fn group(&self, e: &Event) -> Self::Id

Extract the group for this event.

impl PartialEq<ByField> for ByField

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for ByField

impl Default for ByField

fn default() -> ByField

Returns the "default value" for a type.

impl<T> From<T> for ByField where
    T: Into<Cow<'static, str>>, 

fn from(t: T) -> Self

Performs the conversion.

impl Clone for ByField

fn clone(&self) -> ByField

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ByField

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

Formats the value using the given formatter.