Struct tower_util::Optional [−][src]
Optionally forwards requests to an inner service.
If the inner service is None
, Error::None
is returned as the response.
Implementations
impl<T> Optional<T>
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pub fn new<Request>(inner: Option<T>) -> Optional<T> where
T: Service<Request>,
T::Error: Into<Box<dyn Error + Send + Sync>>,
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T: Service<Request>,
T::Error: Into<Box<dyn Error + Send + Sync>>,
Create a new OptionService
Trait Implementations
impl<T: Debug> Debug for Optional<T>
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impl<T, Request> Service<Request> for Optional<T> where
T: Service<Request>,
T::Error: Into<Box<dyn Error + Send + Sync>>,
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T: Service<Request>,
T::Error: Into<Box<dyn Error + Send + Sync>>,
Auto Trait Implementations
impl<T> RefUnwindSafe for Optional<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
impl<T> Send for Optional<T> where
T: Send,
T: Send,
impl<T> Sync for Optional<T> where
T: Sync,
T: Sync,
impl<T> Unpin for Optional<T> where
T: Unpin,
T: Unpin,
impl<T> UnwindSafe for Optional<T> where
T: UnwindSafe,
T: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, Request> ServiceExt<Request> for T where
T: Service<Request> + ?Sized,
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T: Service<Request> + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,