Method signature_help

src/server.rs:801–818

(&self, params: SignatureHelpParams)

    }

    async fn signature_help(&self, params: SignatureHelpParams) -> Result<Option<SignatureHelp>> {
        let uri = params
            .text_document_position_params
            .text_document
            .uri
            .to_string();
        let position = params.text_document_position_params.position;

        let backend = self.clone_for_blocking();
        let uri_clone = uri.clone();
        tokio::task::spawn_blocking(move || {
            backend.handle_with_position("signature_help", &uri_clone, position, |content, pos| {
                backend.handle_signature_help(&uri_clone, content, pos)
            })
        })
        .await
        .unwrap_or(Ok(None))
    }

    async fn document_highlight(
        &self,