Struct tower_lsp::LspService

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pub struct LspService<S> { /* private fields */ }

Expand description

Service abstraction for the Language Server Protocol.

This service takes an incoming JSON-RPC message as input and produces an outgoing message as output. If the incoming message is a server notification or a client response, then the corresponding response will be None.

This implements tower::Service in order to remain independent from the underlying transport and to facilitate further abstraction with middleware.

Pending requests can be canceled by issuing a $/cancelRequest notification.

The service shuts down and stops serving requests after the exit notification is received.

Implementations

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impl<S: LanguageServer> LspService<S>

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pub fn new<F>(init: F) -> (Self, ClientSocket ) where
F: FnOnce(Client) -> S,

Creates a new LspService with the given server backend, also returning a channel for server-to-client communication.

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pub fn build<F>(init: F) -> LspServiceBuilder<S> where
F: FnOnce(Client) -> S,

Starts building a new LspService.

Returns an LspServiceBuilder, which allows adding custom JSON-RPC methods to the server.

Trait Implementations

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impl<S: Debug> Debug for LspService<S>

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

Formats the value using the given formatter. Read more

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impl<S: LanguageServer> Service<Request> for LspService<S>

type Response = Option<Response>

Responses given by the service.

type Error = ExitedError

Errors produced by the service.

type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>

The future response value.

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

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

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fn call(&mut self, req: Request) -> Self::Future

Process the request and return the response asynchronously. Read more

Auto Trait Implementations

impl<S> !RefUnwindSafe for LspService<S>

impl<S> Send for LspService<S> where
S: Send + Sync,

impl<S> !Sync for LspService<S>

impl<S> Unpin for LspService<S>

impl<S> !UnwindSafe for LspService<S>

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,

const: unstable · source

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,

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, U> Into for T where
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, Request> ServiceExt<Request> for T where
T: Service<Request> + ?Sized,

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fn ready(&mut self) -> Ready<'_, Self, Request>

Yields a mutable reference to the service when it is ready to accept a request.

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fn ready_and(&mut self) -> Ready<'_, Self, Request>

👎 Deprecated since 0.4.6:

please use the ServiceExt::ready method instead

Yields a mutable reference to the service when it is ready to accept a request.

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fn ready_oneshot(self) -> ReadyOneshot<Self, Request>

Yields the service when it is ready to accept a request.

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fn oneshot(self, req: Request) -> Oneshot<Self, Request>

Consume this Service, calling with the providing request once it is ready.

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fn call_all<S>(self, reqs: S) -> CallAll<Self, S> where
S: Stream<Item = Request>,
Self::Error: Into<Box<dyn Error + Send + Sync + 'static, Global>>,

Process all requests from the given Stream, and produce a Stream of their responses. Read more

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fn and_then<F>(self, f: F) -> AndThen<Self, F> where
F: Clone,

Executes a new future after this service’s future resolves. This does not alter the behaviour of the poll_ready method. Read more

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fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
F: FnOnce(Self::Response) -> Response + Clone,

Maps this service’s response value to a different value. This does not alter the behaviour of the poll_ready method. Read more

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fn map_err<F, Error>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> Error + Clone,

Maps this service’s error value to a different value. This does not alter the behaviour of the poll_ready method. Read more

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fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F> where
Error: From<Self::Error>,
F: FnOnce(Result<Self::Response, Self::Error>) -> Result<Response, Error> + Clone,

Maps this service’s result type (Result<Self::Response, Self::Error>) to a different value, regardless of whether the future succeeds or fails. Read more

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fn map_request<F, NewRequest>(self, f: F) -> MapRequest<Self, F> where
F: FnMut(NewRequest) -> Request,

Composes a function in front of the service. Read more

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fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F> where
 Error: From<Self::Error>,
 F: FnOnce(Result<Self::Response, Self::Error>) -> Fut + Clone,
 Fut: Future<Output = Result<Response, Error>>,

Composes an asynchronous function after this service. Read more

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fn map_future<F, Fut, Response, Error>(self, f: F) -> MapFuture<Self, F> where
 F: FnMut(Self::Future) -> Fut,
 Error: From<Self::Error>,
 Fut: Future<Output = Result<Response, Error>>,

Composes a function that transforms futures produced by the service. Read more

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fn boxed(self) -> BoxService<Request, Self::Response, Self::Error> where
 Self: 'static + Send,
 Self::Future: 'static,
 Self::Future: Send,

Convert the service into a Service + Send trait object. Read more

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fn boxed_clone(self) -> BoxCloneService<Request, Self::Response, Self::Error> where
 Self: 'static + Clone + Send,
 Self::Future: 'static,
 Self::Future: Send,

Convert the service into a Service + Clone + Send trait object. Read more

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

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>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct tower_lsp::LspService

Implementations

impl<S: LanguageServer> LspService<S>

pub fn new<F>(init: F) -> (Self, ClientSocket) where F: FnOnce(Client) -> S,

pub fn build<F>(init: F) -> LspServiceBuilder<S> where F: FnOnce(Client) -> S,

Trait Implementations

impl<S: Debug> Debug for LspService<S>

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

impl<S: LanguageServer> Service<Request> for LspService<S>

type Response = Option<Response>

type Error = ExitedError

type Future = BoxFuture<'static, Result<Self::Response, Self::Error>>

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

fn call(&mut self, req: Request) -> Self::Future

Auto Trait Implementations

impl<S> !RefUnwindSafe for LspService<S>

impl<S> Send for LspService<S> where S: Send + Sync,

impl<S> !Sync for LspService<S>

impl<S> Unpin for LspService<S>

impl<S> !UnwindSafe for LspService<S>

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T, Request> ServiceExt<Request> for T where T: Service<Request> + ?Sized,

fn ready(&mut self) -> Ready<'_, Self, Request>

fn ready_and(&mut self) -> Ready<'_, Self, Request>

fn ready_oneshot(self) -> ReadyOneshot<Self, Request>

fn oneshot(self, req: Request) -> Oneshot<Self, Request>

fn call_all<S>(self, reqs: S) -> CallAll<Self, S> where S: Stream<Item = Request>, Self::Error: Into<Box<dyn Error + Send + Sync + 'static, Global>>,

fn and_then<F>(self, f: F) -> AndThen<Self, F> where F: Clone,

fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where F: FnOnce(Self::Response) -> Response + Clone,

fn map_err<F, Error>(self, f: F) -> MapErr<Self, F> where F: FnOnce(Self::Error) -> Error + Clone,

fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F> where 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 F: FnMut(NewRequest) -> Request,

fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F> where 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 F: FnMut(Self::Future) -> Fut, Error: From<Self::Error>, Fut: Future<Output = Result<Response, Error>>,

fn boxed(self) -> BoxService<Request, Self::Response, Self::Error> where Self: 'static + Send, Self::Future: 'static, Self::Future: Send,

fn boxed_clone(self) -> BoxCloneService<Request, Self::Response, Self::Error> where Self: 'static + Clone + Send, Self::Future: 'static, Self::Future: Send,

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

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

pub fn new<F>(init: F) -> (Self, ClientSocket ) where
F: FnOnce(Client) -> S,

pub fn build<F>(init: F) -> LspServiceBuilder<S> where
F: FnOnce(Client) -> S,

impl<S> Send for LspService<S> where
S: Send + Sync,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

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

impl<T, Request> ServiceExt<Request> for T where
T: Service<Request> + ?Sized,

fn call_all<S>(self, reqs: S) -> CallAll<Self, S> where
S: Stream<Item = Request>,
Self::Error: Into<Box<dyn Error + Send + Sync + 'static, Global>>,

fn and_then<F>(self, f: F) -> AndThen<Self, F> where
F: Clone,

fn map_response<F, Response>(self, f: F) -> MapResponse<Self, F> where
F: FnOnce(Self::Response) -> Response + Clone,

fn map_err<F, Error>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> Error + Clone,

fn map_result<F, Response, Error>(self, f: F) -> MapResult<Self, F> where
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
F: FnMut(NewRequest) -> Request,

fn then<F, Response, Error, Fut>(self, f: F) -> Then<Self, F> where
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
F: FnMut(Self::Future) -> Fut,
Error: From<Self::Error>,
Fut: Future<Output = Result<Response, Error>>,

fn boxed(self) -> BoxService<Request, Self::Response, Self::Error> where
Self: 'static + Send,
Self::Future: 'static,
Self::Future: Send,

fn boxed_clone(self) -> BoxCloneService<Request, Self::Response, Self::Error> where
Self: 'static + Clone + Send,
Self::Future: 'static,
Self::Future: Send,

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

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,