Enum tower::util::Either [−][src]
pub enum Either<A, B> { A(A), B(B), }
This is supported on crate feature
util
only.Combine two different service types into a single type.
Both services must be of the same request, response, and error types.
Either
is useful for handling conditional branching in service middleware
to different inner service types.
Variants
One type of backing Service
.
The other type of backing Service
.
Trait Implementations
impl<A: Clone, B: Clone> Clone for Either<A, B>
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impl<A: Clone, B: Clone> Clone for Either<A, B>
[src]impl<A, B, T, AE, BE> Future for Either<A, B> where
A: Future<Output = Result<T, AE>>,
AE: Into<BoxError>,
B: Future<Output = Result<T, BE>>,
BE: Into<BoxError>,
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impl<A, B, T, AE, BE> Future for Either<A, B> where
A: Future<Output = Result<T, AE>>,
AE: Into<BoxError>,
B: Future<Output = Result<T, BE>>,
BE: Into<BoxError>,
[src]impl<A, B, Request> Service<Request> for Either<A, B> where
A: Service<Request>,
A::Error: Into<BoxError>,
B: Service<Request, Response = A::Response>,
B::Error: Into<BoxError>,
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impl<A, B, Request> Service<Request> for Either<A, B> where
A: Service<Request>,
A::Error: Into<BoxError>,
B: Service<Request, Response = A::Response>,
B::Error: Into<BoxError>,
[src]type Response = A::Response
Responses given by the service.
type Error = BoxError
Errors produced by the service.
type Future = Either<A::Future, B::Future>
The future response value.
fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>
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fn call(&mut self, request: Request) -> Self::Future
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Auto Trait Implementations
impl<A, B> RefUnwindSafe for Either<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> RefUnwindSafe for Either<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> UnwindSafe for Either<A, B> where
A: UnwindSafe,
B: UnwindSafe,
impl<A, B> UnwindSafe for Either<A, B> where
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
impl<T> FutureExt for T where
T: Future + ?Sized,
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impl<T> FutureExt for T where
T: Future + ?Sized,
[src]pub fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
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F: FnOnce(Self::Output) -> U,
pub fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
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Self::Output: Into<U>,
pub fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
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F: FnOnce(Self::Output) -> Fut,
Fut: Future,
pub fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
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B: Future<Output = Self::Output>,
pub fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
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A: Future<Output = Self::Output>,
pub fn into_stream(self) -> IntoStream<Self>
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pub fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
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Self::Output: Future,
pub fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
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Self::Output: Stream,
pub fn fuse(self) -> Fuse<Self>
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pub fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
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F: FnOnce(&Self::Output),
pub fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
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Self: UnwindSafe,
pub fn shared(self) -> Shared<Self> where
Self::Output: Clone,
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Self::Output: Clone,
pub fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
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pub fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
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self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
Self: Send + 'a,
pub fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
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self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
pub fn unit_error(self) -> UnitError<Self>
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pub fn never_error(self) -> NeverError<Self>
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pub fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
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Self: Unpin,
pub fn now_or_never(self) -> Option<Self::Output>
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impl<T> Instrument for T
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impl<T> Instrument for T
[src]pub fn instrument(self, span: Span) -> Instrumented<Self>
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pub fn in_current_span(self) -> Instrumented<Self>
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impl<F> IntoFuture for F where
F: Future,
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impl<F> IntoFuture for F where
F: Future,
[src]type Output = <F as Future>::Output
🔬 This is a nightly-only experimental API. (
into_future
)The output that the future will produce on completion.
type Future = F
🔬 This is a nightly-only experimental API. (
into_future
)Which kind of future are we turning this into?
pub fn into_future(self) -> <F as IntoFuture>::Future
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impl<T, Request> ServiceExt<Request> for T where
T: Service<Request> + ?Sized,
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impl<T, Request> ServiceExt<Request> for T where
T: Service<Request> + ?Sized,
[src]fn ready(&mut self) -> Ready<'_, Self, Request>ⓘ where
Self: Sized,
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Self: Sized,
fn ready_and(&mut self) -> ReadyAnd<'_, Self, Request> where
Self: Sized,
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Self: Sized,
fn ready_oneshot(self) -> ReadyOneshot<Self, Request>ⓘNotable traits for ReadyOneshot<T, Request>
impl<T, Request> Future for ReadyOneshot<T, Request> where
T: Service<Request>, type Output = Result<T, T::Error>;
where
Self: Sized,
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Notable traits for ReadyOneshot<T, Request>
impl<T, Request> Future for ReadyOneshot<T, Request> where
T: Service<Request>, type Output = Result<T, T::Error>;
Self: Sized,
fn oneshot(self, req: Request) -> Oneshot<Self, Request>ⓘ where
Self: Sized,
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Self: Sized,
fn call_all<S>(self, reqs: S) -> CallAll<Self, S> where
Self: Sized,
Self::Error: Into<BoxError>,
S: Stream<Item = Request>,
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Self: Sized,
Self::Error: Into<BoxError>,
S: Stream<Item = Request>,
fn and_then<F>(self, f: F) -> AndThen<Self, F> where
Self: Sized,
F: Clone,
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Self: Sized,
F: Clone,
fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
Self: Sized,
F: FnOnce(Self::Response) -> Response + Clone,
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Self: Sized,
F: FnOnce(Self::Response) -> Response + Clone,
fn map_err<F, Error>(self, f: F) -> MapErr<Self, F> where
Self: Sized,
F: FnOnce(Self::Error) -> Error + Clone,
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Self: Sized,
F: FnOnce(Self::Error) -> Error + Clone,
fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F> where
Self: Sized,
Error: From<Self::Error>,
F: FnOnce(Result<Self::Response, Self::Error>) -> Result<Response, Error> + Clone,
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Self: Sized,
Error: From<Self::Error>,
F: FnOnce(Result<Self::Response, Self::Error>) -> Result<Response, Error> + Clone,
fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F> where
Self: Sized,
F: FnMut(NewRequest) -> Request + Clone,
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Self: Sized,
F: FnMut(NewRequest) -> Request + Clone,
fn filter<F, NewRequest>(self, filter: F) -> Filter<Self, F> where
Self: Sized,
F: Predicate<NewRequest>,
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Self: Sized,
F: Predicate<NewRequest>,
fn filter_async<F, NewRequest>(self, filter: F) -> AsyncFilter<Self, F> where
Self: Sized,
F: AsyncPredicate<NewRequest>,
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Self: Sized,
F: AsyncPredicate<NewRequest>,
fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F> where
Self: Sized,
Error: From<Self::Error>,
F: FnOnce(Result<Self::Response, Self::Error>) -> Fut + Clone,
Fut: Future<Output = Result<Response, Error>>,
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Self: Sized,
Error: From<Self::Error>,
F: FnOnce(Result<Self::Response, Self::Error>) -> Fut + Clone,
Fut: Future<Output = Result<Response, Error>>,
fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F> where
Self: Sized,
F: FnMut(Self::Future) -> Fut,
Error: From<Self::Error>,
Fut: Future<Output = Result<Response, Error>>,
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Self: Sized,
F: FnMut(Self::Future) -> Fut,
Error: From<Self::Error>,
Fut: Future<Output = Result<Response, Error>>,
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
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impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
[src]pub fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
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Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
pub fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
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F: FnOnce(Self::Ok) -> T,
pub 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,
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F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
pub fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
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F: FnOnce(Self::Error) -> E,
pub fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,
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Self::Error: Into<E>,
pub fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>,
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Self::Ok: Into<U>,
pub fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
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F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
pub fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
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F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
pub fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
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F: FnOnce(&Self::Ok),
pub fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
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F: FnOnce(&Self::Error),
pub fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
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Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
pub fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
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Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
pub fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F> where
F: FnOnce(Self::Error) -> Self::Ok,
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F: FnOnce(Self::Error) -> Self::Ok,
pub fn into_future(self) -> IntoFuture<Self>
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pub fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
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&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,