Struct tracing::span::Record

pub struct Record<'a> { /* private fields */ }

A set of fields recorded by a span.

Implementations

impl<'a> Record<'a>

pub fn new(values: &'a ValueSet<'a>) -> Record<'a>

Constructs a new Record from a ValueSet.

pub fn record(&self, visitor: &mut dyn Visit)

Records all the fields in this Record with the provided Visitor.

pub fn len(&self) -> usize

Returns the number of fields that would be visited from this Record when Record::record() is called

pub fn contains(&self, field: &Field) -> bool

Returns true if this Record contains a value for the given Field.

pub fn is_empty(&self) -> bool

Returns true if this Record contains no values.

Trait Implementations

impl<'a> Debug for Record<'a>

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

Formats the value using the given formatter.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 8 bytes