#[non_exhaustive]
pub struct DynMiddleware<C>(_);
Expand description

A Smithy middleware that uses dynamic dispatch.

This type allows you to pay a small runtime cost to avoid having to name the exact middleware you’re using anywhere you want to hold a Client. Specifically, this will use Box to enable dynamic dispatch for every request that goes through the middleware, which increases memory pressure and suffers an additional vtable indirection for each request, but is unlikely to matter in all but the highest-performance settings.

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impl<C> DynMiddleware<C>

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pub fn new<M: SmithyMiddleware<C> + Send + Sync + 'static>( middleware: M ) -> Self

Construct a new dynamically-dispatched Smithy middleware.

Trait Implementations§

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impl<C> Clone for DynMiddleware<C>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<C> Debug for DynMiddleware<C>

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fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<C> Layer<DispatchService<C>> for DynMiddleware<C>

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type Service = BoxCloneService<Request, Response, SendOperationError>

The wrapped service
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fn layer(&self, inner: DispatchService<C>) -> Self::Service

Wrap the given service with the middleware, returning a new service that has been decorated with the middleware.

Auto Trait Implementations§

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impl<C> !RefUnwindSafe for DynMiddleware<C>

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impl<C> Send for DynMiddleware<C>

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impl<C> Sync for DynMiddleware<C>

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impl<C> Unpin for DynMiddleware<C>

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impl<C> !UnwindSafe for DynMiddleware<C>

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere T: ?Sized,

const: unstable · source§

fn borrow(&self) -> &T

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

const: unstable · source§

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

const: unstable · source§

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

const: unstable · source§

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<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more