Trait Captured

pub trait Captured<'a>:
    Eq
    + PartialOrd
    + Sealed {
    // Required methods
    fn metadata(&self) -> &'static Metadata<'static>;
    fn value(&self, name: &str) -> Option<&'a TracedValue>;
    fn parent(&self) -> Option<CapturedSpan<'a>>;
}

Uniting trait for CapturedSpans and CapturedEvents that allows writing generic code in cases both should be supported.

Required Methods

fn metadata(&self) -> &'static Metadata<'static>

Provides a reference to the span / event metadata.

fn value(&self, name: &str) -> Option<&'a TracedValue>

Returns a value for the specified field, or None if the value is not defined.

fn parent(&self) -> Option<CapturedSpan<'a>>

Returns the reference to the parent span, if any.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<'a> Captured<'a> for CapturedEvent<'a>

impl<'a> Captured<'a> for CapturedSpan<'a>