3 files changed, 29 insertions, 54 deletions

diff --git a/crates/ra_hir/src/mock.rs b/crates/ra_hir/src/mock.rs
index aa54336b8..36b174cd6 100644
--- a/crates/ra_hir/src/mock.rs
+++ b/crates/ra_hir/src/mock.rs
@@ -2,8 +2,7 @@ use std::{sync::Arc, panic};
 
 use parking_lot::Mutex;
 use ra_db::{
-    BaseDatabase, FilePosition, FileId, CrateGraph, SourceRoot, SourceRootId,
-    salsa::{self, Database},
+    BaseDatabase, FilePosition, FileId, CrateGraph, SourceRoot, SourceRootId, FilesDatabase,
 };
 use relative_path::RelativePathBuf;
 use test_utils::{parse_fixture, CURSOR_MARKER, extract_offset};
@@ -34,8 +33,7 @@ impl MockDatabase {
         let mut db = MockDatabase::default();
         let mut source_root = SourceRoot::default();
         let file_id = db.add_file(WORKSPACE, &mut source_root, "/main.rs", text);
-        db.query_mut(ra_db::SourceRootQuery)
-            .set(WORKSPACE, Arc::new(source_root.clone()));
+        db.set_source_root(WORKSPACE, Arc::new(source_root.clone()));
         (db, source_root, file_id)
     }
 
@@ -45,11 +43,6 @@ impl MockDatabase {
         (db, position)
     }
 
-    pub(crate) fn set_crate_graph(&mut self, crate_graph: CrateGraph) {
-        self.query_mut(ra_db::CrateGraphQuery)
-            .set((), Arc::new(crate_graph));
-    }
-
     fn from_fixture(fixture: &str) -> (MockDatabase, SourceRoot, Option<FilePosition>) {
         let mut db = MockDatabase::default();
 
@@ -81,8 +74,7 @@ impl MockDatabase {
                 self.add_file(source_root_id, &mut source_root, &entry.meta, &entry.text);
             }
         }
-        self.query_mut(ra_db::SourceRootQuery)
-            .set(source_root_id, Arc::new(source_root.clone()));
+        self.set_source_root(source_root_id, Arc::new(source_root.clone()));
         (source_root, position)
     }
 
@@ -100,17 +92,15 @@ impl MockDatabase {
         let file_id = FileId(self.file_counter);
         self.file_counter += 1;
         let text = Arc::new(text.to_string());
-        self.query_mut(ra_db::FileTextQuery).set(file_id, text);
-        self.query_mut(ra_db::FileRelativePathQuery)
-            .set(file_id, path.clone());
-        self.query_mut(ra_db::FileSourceRootQuery)
-            .set(file_id, source_root_id);
+        self.set_file_text(file_id, text);
+        self.set_file_relative_path(file_id, path.clone());
+        self.set_file_source_root(file_id, source_root_id);
         source_root.files.insert(path, file_id);
 
         if is_crate_root {
             let mut crate_graph = CrateGraph::default();
             crate_graph.add_crate_root(file_id);
-            self.set_crate_graph(crate_graph);
+            self.set_crate_graph(Arc::new(crate_graph));
         }
         file_id
     }
@@ -149,12 +139,9 @@ impl Default for MockDatabase {
             interner: Default::default(),
             file_counter: 0,
         };
-        db.query_mut(ra_db::CrateGraphQuery)
-            .set((), Default::default());
-        db.query_mut(ra_db::LocalRootsQuery)
-            .set((), Default::default());
-        db.query_mut(ra_db::LibraryRootsQuery)
-            .set((), Default::default());
+        db.set_crate_graph(Default::default());
+        db.set_local_roots(Default::default());
+        db.set_library_roots(Default::default());
         db
     }
 }
diff --git a/crates/ra_hir/src/nameres/tests.rs b/crates/ra_hir/src/nameres/tests.rs
index c033bebe8..24936976c 100644
--- a/crates/ra_hir/src/nameres/tests.rs
+++ b/crates/ra_hir/src/nameres/tests.rs
@@ -1,6 +1,6 @@
 use std::sync::Arc;
 
-use ra_db::{CrateGraph, SourceRootId, salsa::Database};
+use ra_db::{CrateGraph, SourceRootId, FilesDatabase};
 use relative_path::RelativePath;
 use test_utils::{assert_eq_text, covers};
 
@@ -257,7 +257,7 @@ fn item_map_across_crates() {
         .add_dep(main_crate, "test_crate".into(), lib_crate)
         .unwrap();
 
-    db.set_crate_graph(crate_graph);
+    db.set_crate_graph(Arc::new(crate_graph));
 
     let module = crate::source_binder::module_from_file_id(&db, main_id).unwrap();
     let krate = module.krate(&db).unwrap();
@@ -309,7 +309,7 @@ fn import_across_source_roots() {
         .add_dep(main_crate, "test_crate".into(), lib_crate)
         .unwrap();
 
-    db.set_crate_graph(crate_graph);
+    db.set_crate_graph(Arc::new(crate_graph));
 
     let module = crate::source_binder::module_from_file_id(&db, main_id).unwrap();
     let krate = module.krate(&db).unwrap();
@@ -351,7 +351,7 @@ fn reexport_across_crates() {
         .add_dep(main_crate, "test_crate".into(), lib_crate)
         .unwrap();
 
-    db.set_crate_graph(crate_graph);
+    db.set_crate_graph(Arc::new(crate_graph));
 
     let module = crate::source_binder::module_from_file_id(&db, main_id).unwrap();
     let krate = module.krate(&db).unwrap();
@@ -377,8 +377,7 @@ fn check_item_map_is_not_recomputed(initial: &str, file_change: &str) {
         });
         assert!(format!("{:?}", events).contains("item_map"))
     }
-    db.query_mut(ra_db::FileTextQuery)
-        .set(pos.file_id, Arc::new(file_change.to_string()));
+    db.set_file_text(pos.file_id, Arc::new(file_change.to_string()));
 
     {
         let events = db.log_executed(|| {
diff --git a/crates/ra_ide_api/src/imp.rs b/crates/ra_ide_api/src/imp.rs
index ddd9354ec..8ecb8b17c 100644
--- a/crates/ra_ide_api/src/imp.rs
+++ b/crates/ra_ide_api/src/imp.rs
@@ -5,7 +5,7 @@ use hir::{
 };
 use ra_db::{
     FilesDatabase, SourceRoot, SourceRootId, SyntaxDatabase,
-    salsa::{self, Database},
+    salsa::Database,
 };
 use ra_ide_api_light::{self, assists, LocalEdit, Severity};
 use ra_syntax::{
@@ -18,7 +18,7 @@ use crate::{
     AnalysisChange,
     CrateId, db, Diagnostic, FileId, FilePosition, FileRange, FileSystemEdit,
     Query, RootChange, SourceChange, SourceFileEdit,
-    symbol_index::{FileSymbol, LibrarySymbolsQuery},
+    symbol_index::{FileSymbol, SymbolsDatabase},
 };
 
 impl db::RootDatabase {
@@ -28,59 +28,48 @@ impl db::RootDatabase {
         if !change.new_roots.is_empty() {
             let mut local_roots = Vec::clone(&self.local_roots());
             for (root_id, is_local) in change.new_roots {
-                self.query_mut(ra_db::SourceRootQuery)
-                    .set(root_id, Default::default());
+                self.set_source_root(root_id, Default::default());
                 if is_local {
                     local_roots.push(root_id);
                 }
             }
-            self.query_mut(ra_db::LocalRootsQuery)
-                .set((), Arc::new(local_roots));
+            self.set_local_roots(Arc::new(local_roots));
         }
 
         for (root_id, root_change) in change.roots_changed {
             self.apply_root_change(root_id, root_change);
         }
         for (file_id, text) in change.files_changed {
-            self.query_mut(ra_db::FileTextQuery).set(file_id, text)
+            self.set_file_text(file_id, text)
         }
         if !change.libraries_added.is_empty() {
             let mut libraries = Vec::clone(&self.library_roots());
             for library in change.libraries_added {
                 libraries.push(library.root_id);
-                self.query_mut(ra_db::SourceRootQuery)
-                    .set(library.root_id, Default::default());
-                self.query_mut(LibrarySymbolsQuery)
-                    .set_constant(library.root_id, Arc::new(library.symbol_index));
+                self.set_source_root(library.root_id, Default::default());
+                self.set_constant_library_symbols(library.root_id, Arc::new(library.symbol_index));
                 self.apply_root_change(library.root_id, library.root_change);
             }
-            self.query_mut(ra_db::LibraryRootsQuery)
-                .set((), Arc::new(libraries));
+            self.set_library_roots(Arc::new(libraries));
         }
         if let Some(crate_graph) = change.crate_graph {
-            self.query_mut(ra_db::CrateGraphQuery)
-                .set((), Arc::new(crate_graph))
+            self.set_crate_graph(Arc::new(crate_graph))
         }
     }
 
     fn apply_root_change(&mut self, root_id: SourceRootId, root_change: RootChange) {
         let mut source_root = SourceRoot::clone(&self.source_root(root_id));
         for add_file in root_change.added {
-            self.query_mut(ra_db::FileTextQuery)
-                .set(add_file.file_id, add_file.text);
-            self.query_mut(ra_db::FileRelativePathQuery)
-                .set(add_file.file_id, add_file.path.clone());
-            self.query_mut(ra_db::FileSourceRootQuery)
-                .set(add_file.file_id, root_id);
+            self.set_file_text(add_file.file_id, add_file.text);
+            self.set_file_relative_path(add_file.file_id, add_file.path.clone());
+            self.set_file_source_root(add_file.file_id, root_id);
             source_root.files.insert(add_file.path, add_file.file_id);
         }
         for remove_file in root_change.removed {
-            self.query_mut(ra_db::FileTextQuery)
-                .set(remove_file.file_id, Default::default());
+            self.set_file_text(remove_file.file_id, Default::default());
             source_root.files.remove(&remove_file.path);
         }
-        self.query_mut(ra_db::SourceRootQuery)
-            .set(root_id, Arc::new(source_root));
+        self.set_source_root(root_id, Arc::new(source_root));
     }
 
     #[allow(unused)]