1 files changed, 8 insertions, 0 deletions

diff --git a/crates/ra_ide_api/src/symbol_index.rs b/crates/ra_ide_api/src/symbol_index.rs
index e073a349e..4d81d14b3 100644
--- a/crates/ra_ide_api/src/symbol_index.rs
+++ b/crates/ra_ide_api/src/symbol_index.rs
@@ -49,6 +49,14 @@ pub(crate) trait SymbolsDatabase: hir::db::HirDatabase {
     fn file_symbols(&self, file_id: FileId) -> Arc<SymbolIndex>;
     #[salsa::input]
     fn library_symbols(&self, id: SourceRootId) -> Arc<SymbolIndex>;
+    /// The set of "local" (that is, from the current workspace) roots.
+    /// Files in local roots are assumed to change frequently.
+    #[salsa::input]
+    fn local_roots(&self) -> Arc<Vec<SourceRootId>>;
+    /// The set of roots for crates.io libraries.
+    /// Files in libraries are assumed to never change.
+    #[salsa::input]
+    fn library_roots(&self) -> Arc<Vec<SourceRootId>>;
 }
 
 fn file_symbols(db: &impl SymbolsDatabase, file_id: FileId) -> Arc<SymbolIndex> {