Struct LspClient 

pub struct LspClient { /* private fields */ }

LSP client with async request/response handling.

This client manages communication with an LSP server, handling:

• Concurrent requests with unique ID tracking
• Background message loop for receiving responses
• Timeout support for all requests
• Graceful shutdown

Implementations

impl LspClient

pub fn new(config: LspServerConfig) -> Self

Create a new LSP client with the given configuration.

The client starts in an uninitialized state. Call initialize() to start the server and complete the initialization handshake.

pub fn language_id(&self) -> &str

Get the language ID for this client.

pub async fn state(&self) -> ServerState

Get the current server state.

pub async fn request<P, R>( &self, method: &str, params: P, timeout_duration: Duration, ) -> Result<R>

where P: Serialize, R: DeserializeOwned,

Send request and wait for response with timeout.

Automatically retries up to 3 times when the server returns error code -32802 (ServerCancelled) with data.retriggerRequest == true, using exponential backoff starting at 500 ms.

Type Parameters

• P - The type of the request parameters (must be serializable)
• R - The type of the response result (must be deserializable)

Errors

Returns an error if:

• Server has shut down
• Request times out
• Response cannot be deserialized
• LSP server returns an error

pub async fn notify<P>(&self, method: &str, params: P) -> Result<()>

where P: Serialize,

Send notification (fire-and-forget, no response expected).

Errors

Returns an error if the server has shut down.

pub async fn shutdown(self) -> Result<()>

Shutdown client gracefully.

This sends a shutdown command to the background task and waits for it to complete.

Errors

Returns an error if the background task failed.

Trait Implementations

impl Clone for LspClient

fn clone(&self) -> Self

Creates a clone that shares the underlying connection.

The clone does not own the receiver task and cannot perform shutdown. All clones share the same command channel for sending requests.

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

Performs copy-assignment from source.

impl Debug for LspClient

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

Formats the value using the given formatter.