AsyncFn

xitca_service::middleware

Struct AsyncFn 

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pub struct AsyncFn<F>(pub F);
Expand description

transform given async function to middleware that can be implied to certain service through ServiceExt::enclosed API.

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§0: F

Trait Implementations§

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impl<F> Clone for AsyncFn<F>
where F: Clone,

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<S, E, F> Service<Result<S, E>> for AsyncFn<F>
where F: Clone,

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type Response = Pipeline<S, F, AsyncFn>

The Ok part of output future.
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type Error = E

The Err part of output future.
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async fn call(&self, arg: Result<S, E>) -> Result<Self::Response, Self::Error>

Auto Trait Implementations§

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impl<F> Freeze for AsyncFn<F>
where F: Freeze,

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impl<F> RefUnwindSafe for AsyncFn<F>
where F: RefUnwindSafe,

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impl<F> Send for AsyncFn<F>
where F: Send,

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impl<F> Sync for AsyncFn<F>
where F: Sync,

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impl<F> Unpin for AsyncFn<F>
where F: Unpin,

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impl<F> UnwindSafe for AsyncFn<F>
where F: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<S, Arg> ServiceExt<Arg> for S
where S: Service<Arg>,

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fn enclosed<T>(self, build: T) -> EnclosedBuilder<Self, T>
where T: Service<Result<Self::Response, Self::Error>>, Self: Sized,

Enclose Self with given T as Service<<Self as Service<_>>::Response>>. In other word T would take Self’s Service::Response type as it’s generic argument of Service<_> impl.
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fn enclosed_fn<T, Req, O>(self, func: T) -> EnclosedFnBuilder<Self, T>
where T: AsyncFn(&Self::Response, Req) -> O + Clone, Self: Sized,

Function version of Self::enclosed method.
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fn map<F, Res, ResMap>(self, mapper: F) -> MapBuilder<Self, F>
where F: Fn(Res) -> ResMap + Clone, Self: Sized,

Mutate <<Self::Response as Service<Req>>::Future as Future>::Output type with given closure.
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fn map_err<F, Err, ErrMap>(self, err: F) -> MapErrorBuilder<Self, F>
where F: Fn(Err) -> ErrMap + Clone, Self: Sized,

Mutate <Self::Response as Service<Req>>::Error type with given closure.
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fn and_then<F>(self, factory: F) -> PipelineT<Self, F, BuildAndThen>
where F: Service<Arg>, Self: Sized,

Chain another service factory who’s service takes Self’s Service::Response output as Service::Request.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.