Struct tracing_web::FormatSpanFromFields
source · [−]pub struct FormatSpanFromFields<N> { /* private fields */ }Expand description
An adaptor for Formatters from tracing_subscriber::fmt::format as a FormatSpan.
Uses FormattedFields to store the details attachement, so it might reuse an existing extension
for logging, to save some work visiting the recorded fields.
Trait Implementations
sourceimpl<N> FormatSpan for FormatSpanFromFields<N> where
N: 'static + for<'writer> FormatFields<'writer>,
impl<N> FormatSpan for FormatSpanFromFields<N> where
N: 'static + for<'writer> FormatFields<'writer>,
sourcefn find_details<'ext>(&self, ext: &'ext Extensions<'_>) -> Option<&'ext str>
fn find_details<'ext>(&self, ext: &'ext Extensions<'_>) -> Option<&'ext str>
Find the details in the extensions of a span that will be recorded with the event.
sourcefn add_details(&self, ext: &mut ExtensionsMut<'_>, attrs: &Attributes<'_>)
fn add_details(&self, ext: &mut ExtensionsMut<'_>, attrs: &Attributes<'_>)
Called when a span is constructed, with its initial attributes. Read more
sourcefn record_values(&self, ext: &mut ExtensionsMut<'_>, values: &Record<'_>)
fn record_values(&self, ext: &mut ExtensionsMut<'_>, values: &Record<'_>)
Called when a span records some values. Read more
Auto Trait Implementations
impl<N> RefUnwindSafe for FormatSpanFromFields<N> where
N: RefUnwindSafe,
impl<N> Send for FormatSpanFromFields<N> where
N: Send,
impl<N> Sync for FormatSpanFromFields<N> where
N: Sync,
impl<N> Unpin for FormatSpanFromFields<N> where
N: Unpin,
impl<N> UnwindSafe for FormatSpanFromFields<N> where
N: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more