+use std::backtrace::Backtrace;

+use std::collections::HashMap;

+use std::mem::forget;

+use std::sync::Arc;

+use std::time::Instant;

+

+use crossbeam::channel::{Receiver, RecvError, SendError, Sender};

+use log::{debug, error, trace};

+use lsp_server::{

+ ErrorCode, Message, Notification as N, Request as LRq, Response as Re,

+ ResponseError,

+};

+use lsp_types::notification::*;

+use lsp_types::request::*;

+use lsp_types::*;

+use tokio::sync::oneshot;

+use winit::window::Window;

+

+use crate::lsp::BehaviourAfter::{self, *};

+use crate::lsp::RequestError;

+pub fn handler(

+ window_rx: oneshot::Receiver<Arc<dyn Window + 'static>>,

+ progress: &papaya::HashMap<

+ NumberOrString,

+ Option<(WorkDoneProgress, WorkDoneProgressBegin)>,

+ >,

+ _req_tx: Sender<LRq>,

+ d: &papaya::HashMap<Url, Vec<Diagnostic>>,

+ not_tx: Sender<N>,

+ rx: Receiver<Message>,

+ req_rx: Receiver<(i32, oneshot::Sender<Re>, BehaviourAfter)>,

+) {

+ let mut map = HashMap::new();

+ let w = window_rx.blocking_recv().unwrap();

+ loop {

+ crossbeam::select! {

+ recv(req_rx) -> x => match x {

+ Ok((x, y, and)) => {

+ debug!("received request {x}");

+ assert!(map.insert(x, (y, Instant::now(), and)).is_none());

+ }

+ Err(RecvError) => return,

+ },

+ recv(rx) -> x => match x {

+ Ok(Message::Request(rq @ LRq { method: "window/workDoneProgress/create", .. })) => {

+ match rq.load::<WorkDoneProgressCreate>() {

+ Ok((_, x)) => {

+ let g = progress.guard();

+ progress.insert(x.token, None, &g);

+ },

+ Err(lsp_server::ExtractError::MethodMismatch(..)) => {},

+ e => {

+ error!("{e:?}");

+ }

+ };

+ }

+ Ok(Message::Request(x)) => {

+ if let Err(e) = _req_tx.send(x) {

+ let m = e.to_string();

+ error!("couldnt receive request {m}: {:?}", e.into_inner());

+ }

+ }

+ Ok(Message::Response(x)) => {

+ if let Some(e) = &x.error {

+ if e.code == ErrorCode::RequestCanceled as i32 {}

+ else if e.code == ErrorCode::ServerCancelled as i32 {

+ if let Some((s, _, t)) = map.remove(&x.id.i32()) {

+ log::info!("request {} cancelled", x.id);

+ _ = s.send(x);

+ if t == Redraw { w.request_redraw() }

+ }

+ } else {

+ if let Some((s, _, t)) = map.remove(&x.id.i32()) {

+ _ = s.send(x.clone());

+ if t == Redraw { w.request_redraw() }

+ trace!("received error from lsp for response {x:?}");

+ } else {

+ error!("received error from lsp for response {x:?}");

+ }

+ }

+ }

+ else if let Some((s, took, t)) = map.remove(&x.id.i32()) {

+ log::info!("request {} took {:?}", x.id, took.elapsed());

+ match s.send(x) {

+ Ok(()) => {}

+ Err(e) => {

+ error!(

+ "unable to respond to {e:?}",

+ );

+ }

+ }

+ // w.request_redraw();

+ if t == Redraw { w.request_redraw() }

+ } else {

+ error!("request {x:?} was dropped.")

+ }

+ }

+ Ok(Message::Notification(rq @ N { method: "textDocument/publishDiagnostics", .. })) => {

+ debug!("got diagnostics");

+ match rq.load::<PublishDiagnostics>() {

+ Ok(x) => {

+ d.insert(x.uri, x.diagnostics, &d.guard());

+ w.request_redraw();

+ },

+ e => error!("{e:?}"),

+ }

+ },

+ Ok(Message::Notification(x @ N { method: "$/progress", .. })) => {

+ let ProgressParams {token,value:ProgressParamsValue::WorkDone(x) } = x.load::<Progress>().unwrap();

+ match x.clone() {

+ WorkDoneProgress::Begin(y) => {

+ progress.update(token, move |_| Some((x.clone(), y.clone())), &progress.guard());

+ },

+ WorkDoneProgress::Report(_) | WorkDoneProgress::End(_) => {

+ progress.update(token, move |v| Some((x.clone(), v.clone().expect("evil lsp").1)), &progress.guard());

+ }

+ }

+ w.request_redraw();

+ }

+ Ok(Message::Notification(notification)) => {

+ debug!("rx {notification:?}");

+ not_tx

+ .send(notification)

+ .expect("why library drop this??? no drop!!");

+ }

+ Err(RecvError) => return,

+ }

+ }

+ }

+}

+impl super::Client {

+ pub fn notify<X: Notification>(

+ &self,

+ y: &X::Params,

+ ) -> Result<(), SendError<Message>> {

+ self.tx.send(Message::Notification(N {

+ method: X::METHOD.into(),

+ params: serde_json::to_value(y).unwrap(),

+ }))

+ }

+ pub fn cancel(&self, rid: i32) {

+ _ = self.notify::<Cancel>(&CancelParams { id: rid.into() });

+ }

+ pub fn request_immediate<'me, X: Request>(

+ &'me self,

+ y: &X::Params,

+ ) -> Result<X::Result, RequestError<X>> {

+ self.runtime.block_on(self.request_::<X, { Nil }>(y)?.0)

+ }

+

+ pub fn request<'me, X: Request>(

+ &'me self,

+ y: &X::Params,

+ ) -> Result<

+ (

+ impl Future<Output = Result<X::Result, RequestError<X>>>

+ + use<'me, X>,

+ i32,

+ ),

+ SendError<Message>,

+ > {

+ self.request_::<X, { Redraw }>(y)

+ }

+ #[must_use]

+ pub(super) fn request_<'me, X: Request, const THEN: BehaviourAfter>(

+ &'me self,

+ y: &X::Params,

+ ) -> Result<

+ (

+ impl Future<Output = Result<X::Result, RequestError<X>>>

+ + use<'me, X, THEN>,

+ i32,

+ ),

+ SendError<Message>,

+ > {

+ let id = self.id.fetch_add(1, std::sync::atomic::Ordering::AcqRel);

+ self.tx.send(Message::Request(LRq {

+ id: id.into(),

+ method: X::METHOD.into(),

+ params: serde_json::to_value(y).unwrap(),

+ }))?;

+ let (tx, rx) = oneshot::channel();

+ if self.initialized.is_some() {

+ debug!("sent request {} ({id})'s handler", X::METHOD);

+ self.send_to

+ .send((id, tx, THEN))

+ .expect("oughtnt really fail");

+ }

+ Ok((

+ async move {

+ let g = scopeguard::guard((), |()| {

+ self.cancel(id);

+ });

+

+ let mut x = rx.await?;

+ forget(g);

+ if let Some(ResponseError { code, ref mut data, .. }) =

+ x.error

+ {

+ if code == ErrorCode::ServerCancelled as i32 {

+ let e = serde_json::from_value(

+ data.take().unwrap_or_default(),

+ );

+ Err(RequestError::Cancelled(x, e.expect("lsp??")))

+ } else {

+ Err(RequestError::Failure(

+ x,

+ Some(Backtrace::capture()),

+ ))

+ }

+ } else {

+ Ok(serde_json::from_value::<X::Result>(

+ x.result.clone().unwrap_or_default(),

+ )

+ .unwrap_or_else(|_| {

+ panic!(

+ "lsp failure for {x:?}\ndidnt follow spec \

+ for {}\npossibly spec issue",

+ X::METHOD

+ )

+ }))

+ }

+ },

+ id,

+ ))

+ }

+}