Struct WithState

pub struct WithState<State, Service> { /* private fields */ }

Available on crate feature tower only.

内部のServiceにStateを渡すServiceです。

WithState::callの度にStateがcloneされるため、StateはCloneを実装する必要があります。

Trait Implementations

impl<State: Clone, Service: Clone> Clone for WithState<State, Service>

fn clone(&self) -> WithState<State, Service>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<State: Debug, Service: Debug> Debug for WithState<State, Service>

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

Formats the value using the given formatter.

impl<OState, State, Srv> Service<(OState, Event)> for WithState<State, Srv>

where Srv: Service<(State, Event)>, State: Clone,

type Response = <Srv as Service<(State, Event)>>::Response

Responses given by the service.

type Error = <Srv as Service<(State, Event)>>::Error

Errors produced by the service.

type Future = <Srv as Service<(State, Event)>>::Future

The future response value.

fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, (_, request): (OState, Event)) -> Self::Future

Process the request and return the response asynchronously.

impl<State, Srv> Service<Event> for WithState<State, Srv>

where Srv: Service<(State, Event)>, State: Clone,

type Response = <Srv as Service<(State, Event)>>::Response

Responses given by the service.

type Error = <Srv as Service<(State, Event)>>::Error

Errors produced by the service.

type Future = <Srv as Service<(State, Event)>>::Future

The future response value.

fn poll_ready(&mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>>

Returns Poll::Ready(Ok(())) when the service is able to process requests.

fn call(&mut self, request: Event) -> Self::Future

Process the request and return the response asynchronously.