Enum FieldValue 

pub enum FieldValue {
    Str(Cow<'static, str>),
    I64(i64),
    U64(u64),
    F64(f64),
    Bool(bool),
    Uuid(Uuid),
    Duration(Duration),
    Ip(IpAddr),
}

Value stored inside Metadata.

The enum keeps the most common telemetry-friendly primitives without forcing callers to allocate temporary strings. Strings use Cow so 'static literals avoid allocation while owned Strings are supported when necessary.

Variants

Str(Cow<'static, str>)

Human-readable string.

I64(i64)

Signed 64-bit integer.

U64(u64)

Unsigned 64-bit integer.

F64(f64)

Floating-point value.

Bool(bool)

Boolean flag.

Uuid(Uuid)

UUID represented with the canonical binary type.

Duration(Duration)

Elapsed duration captured with nanosecond precision.

Ip(IpAddr)

IP address (v4 or v6).

Trait Implementations

impl Clone for FieldValue

fn clone(&self) -> FieldValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FieldValue

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

Formats the value using the given formatter.

impl Display for FieldValue

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

Formats the value using the given formatter.

impl From<&FieldValue> for ProblemMetadataValue

fn from(value: &FieldValue) -> Self

Converts to this type from the input type.

impl From<FieldValue> for ProblemMetadataValue

fn from(value: FieldValue) -> Self

Converts to this type from the input type.

impl PartialEq for FieldValue

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for FieldValue