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-rw-r--r--crates/rust-analyzer/src/global_state.rs3
-rw-r--r--crates/rust-analyzer/src/lib.rs1
-rw-r--r--crates/rust-analyzer/src/main_loop.rs16
-rw-r--r--crates/rust-analyzer/src/op_queue.rs25
-rw-r--r--crates/rust-analyzer/src/reload.rs24
5 files changed, 57 insertions, 12 deletions
diff --git a/crates/rust-analyzer/src/global_state.rs b/crates/rust-analyzer/src/global_state.rs
index 1f6bf1c8c..442fbd14c 100644
--- a/crates/rust-analyzer/src/global_state.rs
+++ b/crates/rust-analyzer/src/global_state.rs
@@ -22,6 +22,7 @@ use crate::{
22 from_proto, 22 from_proto,
23 line_endings::LineEndings, 23 line_endings::LineEndings,
24 main_loop::Task, 24 main_loop::Task,
25 op_queue::OpQueue,
25 reload::SourceRootConfig, 26 reload::SourceRootConfig,
26 request_metrics::{LatestRequests, RequestMetrics}, 27 request_metrics::{LatestRequests, RequestMetrics},
27 thread_pool::TaskPool, 28 thread_pool::TaskPool,
@@ -78,6 +79,7 @@ pub(crate) struct GlobalState {
78 pub(crate) source_root_config: SourceRootConfig, 79 pub(crate) source_root_config: SourceRootConfig,
79 pub(crate) proc_macro_client: Option<ProcMacroClient>, 80 pub(crate) proc_macro_client: Option<ProcMacroClient>,
80 pub(crate) workspaces: Arc<Vec<ProjectWorkspace>>, 81 pub(crate) workspaces: Arc<Vec<ProjectWorkspace>>,
82 pub(crate) fetch_workspaces_queue: OpQueue,
81 latest_requests: Arc<RwLock<LatestRequests>>, 83 latest_requests: Arc<RwLock<LatestRequests>>,
82} 84}
83 85
@@ -130,6 +132,7 @@ impl GlobalState {
130 source_root_config: SourceRootConfig::default(), 132 source_root_config: SourceRootConfig::default(),
131 proc_macro_client: None, 133 proc_macro_client: None,
132 workspaces: Arc::new(Vec::new()), 134 workspaces: Arc::new(Vec::new()),
135 fetch_workspaces_queue: OpQueue::default(),
133 latest_requests: Default::default(), 136 latest_requests: Default::default(),
134 } 137 }
135 } 138 }
diff --git a/crates/rust-analyzer/src/lib.rs b/crates/rust-analyzer/src/lib.rs
index c9494e300..2207b9a87 100644
--- a/crates/rust-analyzer/src/lib.rs
+++ b/crates/rust-analyzer/src/lib.rs
@@ -35,6 +35,7 @@ mod lsp_utils;
35mod thread_pool; 35mod thread_pool;
36mod document; 36mod document;
37mod diff; 37mod diff;
38mod op_queue;
38pub mod lsp_ext; 39pub mod lsp_ext;
39pub mod config; 40pub mod config;
40 41
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index 22ee96775..51fb2eb74 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -11,7 +11,6 @@ use ide::{Canceled, FileId};
11use ide_db::base_db::VfsPath; 11use ide_db::base_db::VfsPath;
12use lsp_server::{Connection, Notification, Request, Response}; 12use lsp_server::{Connection, Notification, Request, Response};
13use lsp_types::notification::Notification as _; 13use lsp_types::notification::Notification as _;
14use project_model::ProjectWorkspace;
15use vfs::ChangeKind; 14use vfs::ChangeKind;
16 15
17use crate::{ 16use crate::{
@@ -62,7 +61,6 @@ enum Event {
62pub(crate) enum Task { 61pub(crate) enum Task {
63 Response(Response), 62 Response(Response),
64 Diagnostics(Vec<(FileId, Vec<lsp_types::Diagnostic>)>), 63 Diagnostics(Vec<(FileId, Vec<lsp_types::Diagnostic>)>),
65 Workspaces(Vec<anyhow::Result<ProjectWorkspace>>),
66 PrimeCaches(PrimeCachesProgress), 64 PrimeCaches(PrimeCachesProgress),
67 FetchWorkspace(ProjectWorkspaceProgress), 65 FetchWorkspace(ProjectWorkspaceProgress),
68} 66}
@@ -143,7 +141,8 @@ impl GlobalState {
143 |_, _| (), 141 |_, _| (),
144 ); 142 );
145 143
146 self.fetch_workspaces(); 144 self.fetch_workspaces_request();
145 self.fetch_workspaces_if_needed();
147 146
148 while let Some(event) = self.next_event(&inbox) { 147 while let Some(event) = self.next_event(&inbox) {
149 if let Event::Lsp(lsp_server::Message::Notification(not)) = &event { 148 if let Event::Lsp(lsp_server::Message::Notification(not)) = &event {
@@ -204,7 +203,6 @@ impl GlobalState {
204 self.diagnostics.set_native_diagnostics(file_id, diagnostics) 203 self.diagnostics.set_native_diagnostics(file_id, diagnostics)
205 } 204 }
206 } 205 }
207 Task::Workspaces(workspaces) => self.switch_workspaces(workspaces),
208 Task::PrimeCaches(progress) => match progress { 206 Task::PrimeCaches(progress) => match progress {
209 PrimeCachesProgress::Started => prime_caches_progress.push(progress), 207 PrimeCachesProgress::Started => prime_caches_progress.push(progress),
210 PrimeCachesProgress::StartedOnCrate { .. } => { 208 PrimeCachesProgress::StartedOnCrate { .. } => {
@@ -224,7 +222,11 @@ impl GlobalState {
224 ProjectWorkspaceProgress::Report(msg) => { 222 ProjectWorkspaceProgress::Report(msg) => {
225 (Progress::Report, Some(msg)) 223 (Progress::Report, Some(msg))
226 } 224 }
227 ProjectWorkspaceProgress::End => (Progress::End, None), 225 ProjectWorkspaceProgress::End(workspaces) => {
226 self.fetch_workspaces_completed();
227 self.switch_workspaces(workspaces);
228 (Progress::End, None)
229 }
228 }; 230 };
229 self.report_progress("fetching", state, msg, None); 231 self.report_progress("fetching", state, msg, None);
230 } 232 }
@@ -403,6 +405,8 @@ impl GlobalState {
403 } 405 }
404 } 406 }
405 407
408 self.fetch_workspaces_if_needed();
409
406 let loop_duration = loop_start.elapsed(); 410 let loop_duration = loop_start.elapsed();
407 if loop_duration > Duration::from_millis(100) { 411 if loop_duration > Duration::from_millis(100) {
408 log::warn!("overly long loop turn: {:?}", loop_duration); 412 log::warn!("overly long loop turn: {:?}", loop_duration);
@@ -440,7 +444,7 @@ impl GlobalState {
440 } 444 }
441 445
442 RequestDispatcher { req: Some(req), global_state: self } 446 RequestDispatcher { req: Some(req), global_state: self }
443 .on_sync::<lsp_ext::ReloadWorkspace>(|s, ()| Ok(s.fetch_workspaces()))? 447 .on_sync::<lsp_ext::ReloadWorkspace>(|s, ()| Ok(s.fetch_workspaces_request()))?
444 .on_sync::<lsp_ext::JoinLines>(|s, p| handlers::handle_join_lines(s.snapshot(), p))? 448 .on_sync::<lsp_ext::JoinLines>(|s, p| handlers::handle_join_lines(s.snapshot(), p))?
445 .on_sync::<lsp_ext::OnEnter>(|s, p| handlers::handle_on_enter(s.snapshot(), p))? 449 .on_sync::<lsp_ext::OnEnter>(|s, p| handlers::handle_on_enter(s.snapshot(), p))?
446 .on_sync::<lsp_types::request::Shutdown>(|s, ()| { 450 .on_sync::<lsp_types::request::Shutdown>(|s, ()| {
diff --git a/crates/rust-analyzer/src/op_queue.rs b/crates/rust-analyzer/src/op_queue.rs
new file mode 100644
index 000000000..51d66f4b3
--- /dev/null
+++ b/crates/rust-analyzer/src/op_queue.rs
@@ -0,0 +1,25 @@
1//! Bookkeeping to make sure only one long-running operation is executed.
2
3#[derive(Default)]
4pub(crate) struct OpQueue {
5 op_scheduled: bool,
6 op_in_progress: bool,
7}
8
9impl OpQueue {
10 pub(crate) fn request_op(&mut self) {
11 self.op_scheduled = true;
12 }
13 pub(crate) fn should_start_op(&mut self) -> bool {
14 if !self.op_in_progress && self.op_scheduled {
15 self.op_in_progress = true;
16 self.op_scheduled = false;
17 return true;
18 }
19 false
20 }
21 pub(crate) fn op_completed(&mut self) {
22 assert!(self.op_in_progress);
23 self.op_in_progress = false;
24 }
25}
diff --git a/crates/rust-analyzer/src/reload.rs b/crates/rust-analyzer/src/reload.rs
index f4e084741..accf2ef8c 100644
--- a/crates/rust-analyzer/src/reload.rs
+++ b/crates/rust-analyzer/src/reload.rs
@@ -19,7 +19,7 @@ use lsp_ext::StatusParams;
19pub(crate) enum ProjectWorkspaceProgress { 19pub(crate) enum ProjectWorkspaceProgress {
20 Begin, 20 Begin,
21 Report(String), 21 Report(String),
22 End, 22 End(Vec<anyhow::Result<ProjectWorkspace>>),
23} 23}
24 24
25impl GlobalState { 25impl GlobalState {
@@ -30,7 +30,7 @@ impl GlobalState {
30 self.analysis_host.update_lru_capacity(self.config.lru_capacity()); 30 self.analysis_host.update_lru_capacity(self.config.lru_capacity());
31 } 31 }
32 if self.config.linked_projects() != old_config.linked_projects() { 32 if self.config.linked_projects() != old_config.linked_projects() {
33 self.fetch_workspaces() 33 self.fetch_workspaces_request()
34 } else if self.config.flycheck() != old_config.flycheck() { 34 } else if self.config.flycheck() != old_config.flycheck() {
35 self.reload_flycheck(); 35 self.reload_flycheck();
36 } 36 }
@@ -44,7 +44,7 @@ impl GlobalState {
44 Status::Ready | Status::Invalid => (), 44 Status::Ready | Status::Invalid => (),
45 } 45 }
46 if self.config.cargo_autoreload() { 46 if self.config.cargo_autoreload() {
47 self.fetch_workspaces(); 47 self.fetch_workspaces_request();
48 } else { 48 } else {
49 self.transition(Status::NeedsReload); 49 self.transition(Status::NeedsReload);
50 } 50 }
@@ -98,8 +98,15 @@ impl GlobalState {
98 }); 98 });
99 } 99 }
100 } 100 }
101 pub(crate) fn fetch_workspaces(&mut self) { 101
102 pub(crate) fn fetch_workspaces_request(&mut self) {
103 self.fetch_workspaces_queue.request_op()
104 }
105 pub(crate) fn fetch_workspaces_if_needed(&mut self) {
102 log::info!("will fetch workspaces"); 106 log::info!("will fetch workspaces");
107 if !self.fetch_workspaces_queue.should_start_op() {
108 return;
109 }
103 110
104 self.task_pool.handle.spawn_with_sender({ 111 self.task_pool.handle.spawn_with_sender({
105 let linked_projects = self.config.linked_projects(); 112 let linked_projects = self.config.linked_projects();
@@ -133,12 +140,17 @@ impl GlobalState {
133 }) 140 })
134 .collect::<Vec<_>>(); 141 .collect::<Vec<_>>();
135 142
136 sender.send(Task::FetchWorkspace(ProjectWorkspaceProgress::End)).unwrap();
137 log::info!("did fetch workspaces {:?}", workspaces); 143 log::info!("did fetch workspaces {:?}", workspaces);
138 sender.send(Task::Workspaces(workspaces)).unwrap() 144 sender
145 .send(Task::FetchWorkspace(ProjectWorkspaceProgress::End(workspaces)))
146 .unwrap();
139 } 147 }
140 }); 148 });
141 } 149 }
150 pub(crate) fn fetch_workspaces_completed(&mut self) {
151 self.fetch_workspaces_queue.op_completed()
152 }
153
142 pub(crate) fn switch_workspaces(&mut self, workspaces: Vec<anyhow::Result<ProjectWorkspace>>) { 154 pub(crate) fn switch_workspaces(&mut self, workspaces: Vec<anyhow::Result<ProjectWorkspace>>) {
143 let _p = profile::span("GlobalState::switch_workspaces"); 155 let _p = profile::span("GlobalState::switch_workspaces");
144 log::info!("will switch workspaces: {:?}", workspaces); 156 log::info!("will switch workspaces: {:?}", workspaces);