Struct tracing_core::field::Empty

pub struct Empty;

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

Formats the value using the given formatter.

impl Eq for Empty

impl PartialEq<Empty> for Empty

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

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

#[must_use]

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

This method tests for !=.

impl StructuralEq for Empty

impl StructuralPartialEq for Empty

impl Value for Empty

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

Visits this value with the given Visitor.