Merge #4990

4990: Introduce an ItemTree layer to avoid reparsing files r=matklad a=jonas-schievink

This reduces the latency of "go to definition" in a simple benchmark on rust-analyzer by around 30%.

cc https://github.com/rust-analyzer/rust-analyzer/issues/1650
Closes https://github.com/rust-analyzer/rust-analyzer/issues/3485

Co-authored-by: Aleksey Kladov <[email protected]>
Co-authored-by: Jonas Schievink <[email protected]>
Co-authored-by: Jonas Schievink <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
index 875290259..4a3ba57da 100644
--- a/crates/ra_db/src/lib.rs
+++ b/crates/ra_db/src/lib.rs
@@ -114,7 +114,7 @@ pub trait SourceDatabase: CheckCanceled + FileLoader + std::fmt::Debug {
 }
 
 fn parse_query(db: &impl SourceDatabase, file_id: FileId) -> Parse<ast::SourceFile> {
-    let _p = profile("parse_query");
+    let _p = profile("parse_query").detail(|| format!("{:?}", file_id));
     let text = db.file_text(file_id);
     SourceFile::parse(&*text)
 }