4 files changed, 6 insertions, 5 deletions

diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 805357662..4fb5844f4 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -167,7 +167,7 @@ impl ModuleSource {
     ) -> ModuleSource {
         match (file_id, decl_id) {
             (Some(file_id), _) => {
-                let source_file = db.parse(file_id).tree;
+                let source_file = db.parse(file_id).tree().to_owned();
                 ModuleSource::SourceFile(source_file)
             }
             (None, Some(item_id)) => {
diff --git a/crates/ra_hir/src/expr/validation.rs b/crates/ra_hir/src/expr/validation.rs
index 4e6131dce..c2a10a0b5 100644
--- a/crates/ra_hir/src/expr/validation.rs
+++ b/crates/ra_hir/src/expr/validation.rs
@@ -71,7 +71,8 @@ impl<'a, 'b> ExprValidator<'a, 'b> {
         }
         let source_map = self.func.body_source_map(db);
         let file_id = self.func.source(db).file_id;
-        let source_file = db.parse(file_id.original_file(db)).tree;
+        let parse = db.parse(file_id.original_file(db));
+        let source_file = parse.tree();
         if let Some(field_list_node) = source_map
             .expr_syntax(id)
             .map(|ptr| ptr.to_node(source_file.syntax()))
diff --git a/crates/ra_hir/src/ids.rs b/crates/ra_hir/src/ids.rs
index 5212b78ac..80e9cccd6 100644
--- a/crates/ra_hir/src/ids.rs
+++ b/crates/ra_hir/src/ids.rs
@@ -60,7 +60,7 @@ impl HirFileId {
         file_id: HirFileId,
     ) -> Option<TreeArc<SyntaxNode>> {
         match file_id.0 {
-            HirFileIdRepr::File(file_id) => Some(db.parse(file_id).tree.syntax().to_owned()),
+            HirFileIdRepr::File(file_id) => Some(db.parse(file_id).tree().syntax().to_owned()),
             HirFileIdRepr::Macro(macro_file) => db.parse_macro(macro_file),
         }
     }
diff --git a/crates/ra_hir/src/source_binder.rs b/crates/ra_hir/src/source_binder.rs
index 429575fee..573add7da 100644
--- a/crates/ra_hir/src/source_binder.rs
+++ b/crates/ra_hir/src/source_binder.rs
@@ -49,8 +49,8 @@ pub fn module_from_declaration(
 
 /// Locates the module by position in the source code.
 pub fn module_from_position(db: &impl HirDatabase, position: FilePosition) -> Option<Module> {
-    let file = db.parse(position.file_id).tree;
-    match find_node_at_offset::<ast::Module>(file.syntax(), position.offset) {
+    let parse = db.parse(position.file_id);
+    match find_node_at_offset::<ast::Module>(parse.tree().syntax(), position.offset) {
         Some(m) if !m.has_semi() => module_from_inline(db, position.file_id, m),
         _ => module_from_file_id(db, position.file_id),
     }