Struct tracing_subscriber::registry::Extensions[−][src]

pub struct Extensions<'a> { /* fields omitted */ }

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

impl<'a> Debug for Extensions<'a>[src]

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]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T> Instrument for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.