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-rw-r--r--crates/ra_ide/src/lib.rs5
-rw-r--r--crates/ra_ide/src/prime_caches.rs15
-rw-r--r--crates/rust-analyzer/src/main_loop.rs5
3 files changed, 25 insertions, 0 deletions
diff --git a/crates/ra_ide/src/lib.rs b/crates/ra_ide/src/lib.rs
index 5a41f702e..4dfe0553e 100644
--- a/crates/ra_ide/src/lib.rs
+++ b/crates/ra_ide/src/lib.rs
@@ -13,6 +13,7 @@
13pub mod mock_analysis; 13pub mod mock_analysis;
14mod source_change; 14mod source_change;
15 15
16mod prime_caches;
16mod status; 17mod status;
17mod completion; 18mod completion;
18mod runnables; 19mod runnables;
@@ -227,6 +228,10 @@ impl Analysis {
227 self.with_db(|db| status::status(&*db)) 228 self.with_db(|db| status::status(&*db))
228 } 229 }
229 230
231 pub fn prime_caches(&self, files: Vec<FileId>) -> Cancelable<()> {
232 self.with_db(|db| prime_caches::prime_caches(db, files))
233 }
234
230 /// Gets the text of the source file. 235 /// Gets the text of the source file.
231 pub fn file_text(&self, file_id: FileId) -> Cancelable<Arc<String>> { 236 pub fn file_text(&self, file_id: FileId) -> Cancelable<Arc<String>> {
232 self.with_db(|db| db.file_text(file_id)) 237 self.with_db(|db| db.file_text(file_id))
diff --git a/crates/ra_ide/src/prime_caches.rs b/crates/ra_ide/src/prime_caches.rs
new file mode 100644
index 000000000..628c989bf
--- /dev/null
+++ b/crates/ra_ide/src/prime_caches.rs
@@ -0,0 +1,15 @@
1//! rust-analyzer is lazy and doesn't not compute anything unless asked. This
2//! sometimes is counter productive when, for example, the first goto definition
3//! request takes longer to compute. This modules implemented prepopulating of
4//! various caches, it's not really advanced at the moment.
5
6use hir::Semantics;
7
8use crate::{FileId, RootDatabase};
9
10pub(crate) fn prime_caches(db: &RootDatabase, files: Vec<FileId>) {
11 let sema = Semantics::new(db);
12 for file in files {
13 let _ = sema.to_module_def(file);
14 }
15}
diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs
index fe804aada..580ad1f2c 100644
--- a/crates/rust-analyzer/src/main_loop.rs
+++ b/crates/rust-analyzer/src/main_loop.rs
@@ -426,6 +426,11 @@ fn loop_turn(
426 show_message(req::MessageType::Info, msg, &connection.sender); 426 show_message(req::MessageType::Info, msg, &connection.sender);
427 } 427 }
428 world_state.check_watcher.update(); 428 world_state.check_watcher.update();
429 pool.execute({
430 let subs = loop_state.subscriptions.subscriptions();
431 let snap = world_state.snapshot();
432 move || snap.analysis().prime_caches(subs).unwrap_or_else(|_: Canceled| ())
433 });
429 } 434 }
430 435
431 if state_changed { 436 if state_changed {