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Slightly quieter fatal panics

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This commit is contained in:
Lukas Wirth 2024-08-07 16:35:42 +02:00
parent e3e31ce199
commit bb60c21885
2 changed files with 22 additions and 13 deletions
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30
crates/rust-analyzer/src/main_loop.rs
View file

@ -179,7 +179,10 @@ impl GlobalState {
} }
} }
while let Some(event) = self.next_event(&inbox) { while let Ok(event) = self.next_event(&inbox) {
let Some(event) = event else {
anyhow::bail!("client exited without proper shutdown sequence");
};
if matches!( if matches!(
&event, &event,
Event::Lsp(lsp_server::Message::Notification(Notification { method, .. })) Event::Lsp(lsp_server::Message::Notification(Notification { method, .. }))
@ -190,7 +193,7 @@ impl GlobalState {
self.handle_event(event)?; self.handle_event(event)?;
} }
anyhow::bail!("client exited without proper shutdown sequence") Err(anyhow::anyhow!("A receiver has been dropped, something panicked!"))
} }
fn register_did_save_capability(&mut self, additional_patterns: impl Iterator<Item = String>) { fn register_did_save_capability(&mut self, additional_patterns: impl Iterator<Item = String>) {
@ -237,37 +240,40 @@ impl GlobalState {
); );
} }
fn next_event(&self, inbox: &Receiver<lsp_server::Message>) -> Option<Event> { fn next_event(
&self,
inbox: &Receiver<lsp_server::Message>,
) -> Result<Option<Event>, crossbeam_channel::RecvError> {
select! { select! {
recv(inbox) -> msg => recv(inbox) -> msg =>
msg.ok().map(Event::Lsp), return Ok(msg.ok().map(Event::Lsp)),
recv(self.task_pool.receiver) -> task => recv(self.task_pool.receiver) -> task =>
Some(Event::Task(task.unwrap())), task.map(Event::Task),
recv(self.deferred_task_queue.receiver) -> task => recv(self.deferred_task_queue.receiver) -> task =>
Some(Event::QueuedTask(task.unwrap())), task.map(Event::QueuedTask),
recv(self.fmt_pool.receiver) -> task => recv(self.fmt_pool.receiver) -> task =>
Some(Event::Task(task.unwrap())), task.map(Event::Task),
recv(self.loader.receiver) -> task => recv(self.loader.receiver) -> task =>
Some(Event::Vfs(task.unwrap())), task.map(Event::Vfs),
recv(self.flycheck_receiver) -> task => recv(self.flycheck_receiver) -> task =>
Some(Event::Flycheck(task.unwrap())), task.map(Event::Flycheck),
recv(self.test_run_receiver) -> task => recv(self.test_run_receiver) -> task =>
Some(Event::TestResult(task.unwrap())), task.map(Event::TestResult),
recv(self.discover_receiver) -> task => recv(self.discover_receiver) -> task =>
Some(Event::DiscoverProject(task.unwrap())), task.map(Event::DiscoverProject),
} }
.map(Some)
} }
fn handle_event(&mut self, event: Event) -> anyhow::Result<()> { fn handle_event(&mut self, event: Event) -> anyhow::Result<()> {
let loop_start = Instant::now(); let loop_start = Instant::now();
// NOTE: don't count blocking select! call as a loop-turn time
let _p = tracing::info_span!("GlobalState::handle_event", event = %event).entered(); let _p = tracing::info_span!("GlobalState::handle_event", event = %event).entered();
let event_dbg_msg = format!("{event:?}"); let event_dbg_msg = format!("{event:?}");

5
crates/vfs-notify/src/lib.rs
View file

@ -103,7 +103,10 @@ impl NotifyActor {
let (watcher_sender, watcher_receiver) = unbounded(); let (watcher_sender, watcher_receiver) = unbounded();
let watcher = log_notify_error(RecommendedWatcher::new( let watcher = log_notify_error(RecommendedWatcher::new(
move |event| { move |event| {
watcher_sender.send(event).unwrap(); // we don't care about the error. If sending fails that usually
// means we were dropped, so unwrapping will just add to the
// panic noise.
_ = watcher_sender.send(event);
}, },
Config::default(), Config::default(),
)); ));