pub struct OnUpgrade { /* private fields */ }Expand description
A future for a possible HTTP upgrade.
If no upgrade was available, or it doesn’t succeed, yields an Error.
Trait Implementations
Auto Trait Implementations
impl !RefUnwindSafe for OnUpgrade
impl Send for OnUpgrade
impl Sync for OnUpgrade
impl Unpin for OnUpgrade
impl !UnwindSafe for OnUpgrade
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
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
sourceimpl<T> FutureExt for Twhere
T: Future + ?Sized,
impl<T> FutureExt for Twhere
T: Future + ?Sized,
sourcefn map<U, F>(self, f: F) -> Map<Self, F>where
F: FnOnce(Self::Output) -> U,
Self: Sized,
fn map<U, F>(self, f: F) -> Map<Self, F>where
F: FnOnce(Self::Output) -> U,
Self: Sized,
Map this future’s output to a different type, returning a new future of
the resulting type. Read more
sourcefn map_into<U>(self) -> MapInto<Self, U>where
Self::Output: Into<U>,
Self: Sized,
fn map_into<U>(self) -> MapInto<Self, U>where
Self::Output: Into<U>,
Self: Sized,
Map this future’s output to a different type, returning a new future of
the resulting type. Read more
sourcefn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Self: Sized,
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Self: Sized,
Chain on a computation for when a future finished, passing the result of
the future to the provided closure
f. Read moresourcefn left_future<B>(self) -> Either<Self, B>where
B: Future<Output = Self::Output>,
Self: Sized,
fn left_future<B>(self) -> Either<Self, B>where
B: Future<Output = Self::Output>,
Self: Sized,
sourcefn right_future<A>(self) -> Either<A, Self>where
A: Future<Output = Self::Output>,
Self: Sized,
fn right_future<A>(self) -> Either<A, Self>where
A: Future<Output = Self::Output>,
Self: Sized,
sourcefn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Convert this future into a single element stream. Read more
sourcefn flatten(self) -> Flatten<Self>where
Self::Output: Future,
Self: Sized,
fn flatten(self) -> Flatten<Self>where
Self::Output: Future,
Self: Sized,
Flatten the execution of this future when the output of this
future is itself another future. Read more
sourcefn flatten_stream(self) -> FlattenStream<Self>where
Self::Output: Stream,
Self: Sized,
fn flatten_stream(self) -> FlattenStream<Self>where
Self::Output: Stream,
Self: Sized,
Flatten the execution of this future when the successful result of this
future is a stream. Read more
sourcefn fuse(self) -> Fuse<Self>where
Self: Sized,
fn fuse(self) -> Fuse<Self>where
Self: Sized,
Fuse a future such that
poll will never again be called once it has
completed. This method can be used to turn any Future into a
FusedFuture. Read moresourcefn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnOnce(&Self::Output),
Self: Sized,
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnOnce(&Self::Output),
Self: Sized,
Do something with the output of a future before passing it on. Read more
sourcefn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self>where
Self: Sized + UnwindSafe,
Catches unwinding panics while polling the future. Read more
Create a cloneable handle to this future where all handles will resolve
to the same result. Read more
sourcefn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>>where
Self: 'a + Sized + Send,
fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>>where
Self: 'a + Sized + Send,
Wrap the future in a Box, pinning it. Read more
sourcefn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>>where
Self: 'a + Sized,
fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>>where
Self: 'a + Sized,
Wrap the future in a Box, pinning it. Read more
sourcefn unit_error(self) -> UnitError<Self>where
Self: Sized,
fn unit_error(self) -> UnitError<Self>where
Self: Sized,
sourcefn never_error(self) -> NeverError<Self>where
Self: Sized,
fn never_error(self) -> NeverError<Self>where
Self: Sized,
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<F> IntoFuture for Fwhere
F: Future,
impl<F> IntoFuture for Fwhere
F: Future,
type IntoFuture = F
type IntoFuture = F
Which kind of future are we turning this into?
sourcefn into_future(self) -> <F as IntoFuture>::IntoFuture
fn into_future(self) -> <F as IntoFuture>::IntoFuture
Creates a future from a value. Read more
sourceimpl<Fut> TryFutureExt for Futwhere
Fut: TryFuture + ?Sized,
impl<Fut> TryFutureExt for Futwhere
Fut: TryFuture + ?Sized,
sourcefn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where
F: FnOnce(Self::Ok) -> T,
Self: Sized,
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>where
F: FnOnce(Self::Ok) -> T,
Self: Sized,
Maps this future’s success value to a different value. Read more
sourcefn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E>where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
Self: Sized,
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E>where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
Self: Sized,
Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more
sourcefn map_err<E, F>(self, f: F) -> MapErr<Self, F>where
F: FnOnce(Self::Error) -> E,
Self: Sized,
fn map_err<E, F>(self, f: F) -> MapErr<Self, F>where
F: FnOnce(Self::Error) -> E,
Self: Sized,
Maps this future’s error value to a different value. Read more
sourcefn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Self: Sized,
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Self: Sized,
Executes another future after this one resolves successfully. The
success value is passed to a closure to create this subsequent future. Read more
sourcefn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Self: Sized,
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Self: Sized,
Executes another future if this one resolves to an error. The
error value is passed to a closure to create this subsequent future. Read more
sourcefn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where
F: FnOnce(&Self::Ok),
Self: Sized,
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>where
F: FnOnce(&Self::Ok),
Self: Sized,
Do something with the success value of a future before passing it on. Read more
sourcefn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnOnce(&Self::Error),
Self: Sized,
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>where
F: FnOnce(&Self::Error),
Self: Sized,
Do something with the error value of a future before passing it on. Read more
sourcefn try_flatten(self) -> TryFlatten<Self, Self::Ok>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
fn try_flatten(self) -> TryFlatten<Self, Self::Ok>where
Self::Ok: TryFuture<Error = Self::Error>,
Self: Sized,
Flatten the execution of this future when the successful result of this
future is another future. Read more
sourcefn try_flatten_stream(self) -> TryFlattenStream<Self>where
Self::Ok: TryStream<Error = Self::Error>,
Self: Sized,
fn try_flatten_stream(self) -> TryFlattenStream<Self>where
Self::Ok: TryStream<Error = Self::Error>,
Self: Sized,
Flatten the execution of this future when the successful result of this
future is a stream. Read more