Struct tracing_subscriber::registry::Extensions [−][src]
An immutable, read-only reference to a Span’s extensions.
Implementations
impl<'a> Extensions<'a>[src]
pub fn get<T: 'static>(&self) -> Option<&T>[src]
Immutably borrows a type previously inserted into this Extensions.
Trait Implementations
Auto Trait Implementations
impl<'a> RefUnwindSafe for Extensions<'a>
impl<'a> !Send for Extensions<'a>
impl<'a> Sync for Extensions<'a>
impl<'a> Unpin for Extensions<'a>
impl<'a> UnwindSafe for Extensions<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T> Instrument for T[src]
pub fn instrument(self, span: Span) -> Instrumented<Self>[src]
pub fn in_current_span(self) -> Instrumented<Self>[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,