Trait tracing_core::field::Value

pub trait Value: Sealed {
    fn record(&self, key: &Field, visitor: &mut dyn Visit);
}

A field value of an erased type.

Implementors of Value may call the appropriate typed recording methods on the visitor passed to their record method in order to indicate how their data should be recorded.

Required methods

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

Visits this value with the given Visitor.

Trait Implementations

impl Debug for dyn Value

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

Formats the value using the given formatter.

impl Display for dyn Value

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

Formats the value using the given formatter.

Implementations on Foreign Types

impl Value for u64

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

impl Value for NonZeroU64

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

impl Value for usize

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

impl Value for NonZeroUsize

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

impl Value for u32

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

impl Value for NonZeroU32

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

impl Value for u16

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

impl Value for NonZeroU16

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

impl Value for u8

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

impl Value for NonZeroU8

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

impl Value for i64

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

impl Value for NonZeroI64

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

impl Value for isize

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

impl Value for NonZeroIsize

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

impl Value for i32

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

impl Value for NonZeroI32

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

impl Value for i16

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

impl Value for NonZeroI16

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

impl Value for i8

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

impl Value for NonZeroI8

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

impl Value for bool

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

impl Value for f64

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

impl Value for f32

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

impl<T: Value> Value for Wrapping<T>

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

impl Value for str

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

impl Value for dyn Error + 'static

This is supported on crate feature std only.

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

impl<'a, T: ?Sized> Value for &'a T where
    T: Value + 'a, 

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

impl<'a, T: ?Sized> Value for &'a mut T where
    T: Value + 'a, 

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

impl<'a> Value for Arguments<'a>

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

impl Value for Value<'_>

This is supported on tracing_unstable and crate feature valuable only.

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

impl Value for &dyn Valuable

This is supported on tracing_unstable and crate feature valuable only.

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

impl<T: Value> Value for Option<T>

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

Implementors

impl Value for Empty

impl<T> Value for DebugValue<T> where
    T: Debug, 

impl<T> Value for DisplayValue<T> where
    T: Display,