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use std::sync::Once;
use anyhow::{bail, Result};
use crossbeam_channel::{Receiver, Sender};
use lsp_server::{Connection, Message, Notification, Request, Response};
use lsp_types::{
notification::{Exit, Initialized},
request::{Initialize, Shutdown},
ClientCapabilities, ClientInfo, DidOpenTextDocumentParams, InitializeParams, InitializeResult,
InitializedParams, Url, WorkspaceFolder,
};
use tempfile::{tempdir, TempDir};
use crate::Server;
static INIT_LOGGER: Once = Once::new();
pub struct IncomingHandler {
_handle: jod_thread::JoinHandle<Result<()>>,
pub requests: Receiver<Request>,
pub notifications: Receiver<Notification>,
pub responses: Receiver<Response>,
}
impl IncomingHandler {
pub fn spawn(receiver: Receiver<Message>) -> Self {
let (req_sender, req_receiver) = crossbeam_channel::unbounded();
let (not_sender, not_receiver) = crossbeam_channel::unbounded();
let (res_sender, res_receiver) = crossbeam_channel::unbounded();
let _handle = jod_thread::spawn(move || {
for message in &receiver {
match message {
Message::Request(req) => req_sender.send(req)?,
Message::Response(res) => res_sender.send(res)?,
Message::Notification(not) => not_sender.send(not)?,
};
}
Ok(())
});
Self {
_handle,
requests: req_receiver,
notifications: not_receiver,
responses: res_receiver,
}
}
}
pub struct ClientResult {
pub directory: TempDir,
pub incoming: IncomingHandler,
}
pub struct Client {
outgoing: Sender<Message>,
incoming: IncomingHandler,
directory: TempDir,
request_id: i32,
_handle: jod_thread::JoinHandle,
}
impl Client {
pub fn spawn() -> Self {
INIT_LOGGER.call_once(|| env_logger::init());
let directory = tempdir().unwrap();
let (client, server) = Connection::memory();
let incoming = IncomingHandler::spawn(client.receiver);
let outgoing = client.sender;
let server = Server::new(server);
let _handle = jod_thread::spawn(move || {
server.run().expect("server failed to run");
});
Self {
outgoing,
incoming,
directory,
request_id: 0,
_handle,
}
}
pub fn initialize(
&mut self,
client_capabilities: ClientCapabilities,
client_info: Option<ClientInfo>,
) -> InitializeResult {
let result = self
.request::<Initialize>(InitializeParams {
initialization_options: Some(serde_json::json!({ "skipDistro": true })),
capabilities: client_capabilities,
workspace_folders: Some(vec![WorkspaceFolder {
name: "Test".into(),
uri: Url::from_directory_path(self.directory.path()).unwrap(),
}]),
client_info,
..InitializeParams::default()
})
.unwrap();
self.notify::<Initialized>(InitializedParams {});
result
}
pub fn request<R: lsp_types::request::Request>(
&mut self,
params: R::Params,
) -> Result<R::Result> {
self.request_id += 1;
self.outgoing
.send(Request::new(self.request_id.into(), R::METHOD.into(), params).into())
.unwrap();
let response = self.incoming.responses.recv().unwrap();
assert_eq!(response.id, self.request_id.into());
let result = match response.result {
Some(result) => result,
None => bail!("request failed: {:?}", response.error),
};
Ok(serde_json::from_value(result)?)
}
pub fn notify<N: lsp_types::notification::Notification>(&mut self, params: N::Params) {
self.outgoing
.send(Notification::new(N::METHOD.into(), serde_json::to_value(params).unwrap()).into())
.unwrap();
}
pub fn open(&mut self, name: &str, language_id: &str, text: String) {
self.notify::<lsp_types::notification::DidOpenTextDocument>(DidOpenTextDocumentParams {
text_document: lsp_types::TextDocumentItem {
uri: self.uri(name),
language_id: language_id.to_string(),
version: 0,
text,
},
});
}
pub fn shutdown(mut self) -> ClientResult {
self.request::<Shutdown>(()).unwrap();
self.notify::<Exit>(());
ClientResult {
directory: self.directory,
incoming: self.incoming,
}
}
pub fn uri(&self, name: &str) -> Url {
Url::from_file_path(self.directory.path().join(name)).unwrap()
}
}
|
