1 files changed, 20 insertions, 2 deletions

diff --git a/crates/ra_syntax/src/ast/edit.rs b/crates/ra_syntax/src/ast/edit.rs
index 1858e2b6c..40a04b9c5 100644
--- a/crates/ra_syntax/src/ast/edit.rs
+++ b/crates/ra_syntax/src/ast/edit.rs
@@ -139,7 +139,7 @@ impl ast::RecordFieldList {
         let mut to_insert: ArrayVec<[SyntaxElement; 4]> = ArrayVec::new();
         to_insert.push(space.into());
         to_insert.push(field.syntax().clone().into());
-        to_insert.push(tokens::comma().into());
+        to_insert.push(make::token(T![,]).into());
 
         macro_rules! after_l_curly {
             () => {{
@@ -160,7 +160,7 @@ impl ast::RecordFieldList {
                 {
                     InsertPosition::After(comma)
                 } else {
-                    to_insert.insert(0, tokens::comma().into());
+                    to_insert.insert(0, make::token(T![,]).into());
                     InsertPosition::After($anchor.syntax().clone().into())
                 }
             };
@@ -259,6 +259,24 @@ impl ast::UseItem {
     }
 }
 
+impl ast::UseTree {
+    #[must_use]
+    pub fn with_path(&self, path: ast::Path) -> ast::UseTree {
+        if let Some(old) = self.path() {
+            return replace_descendants(self, iter::once((old, path)));
+        }
+        self.clone()
+    }
+
+    #[must_use]
+    pub fn with_use_tree_list(&self, use_tree_list: ast::UseTreeList) -> ast::UseTree {
+        if let Some(old) = self.use_tree_list() {
+            return replace_descendants(self, iter::once((old, use_tree_list)));
+        }
+        self.clone()
+    }
+}
+
 #[must_use]
 pub fn strip_attrs_and_docs<N: ast::AttrsOwner>(node: &N) -> N {
     N::cast(strip_attrs_and_docs_inner(node.syntax().clone())).unwrap()