internal: use mutable syntax trees when filling fields

[rust.git] / crates / ide / src / diagnostics / fixes.rs

diff --git a/crates/ide/src/diagnostics/fixes.rs b/crates/ide/src/diagnostics/fixes.rs
index 15821500f1acc765daddb7d5450335157617de59..695b59e27e6c7dce4deaf6222e1576335017844b 100644 (file)
--- a/crates/ide/src/diagnostics/fixes.rs
+++ b/crates/ide/src/diagnostics/fixes.rs
@@ -100,11 +100,12 @@ fn fix(
         let root = sema.db.parse_or_expand(self.file)?;
         let field_list_parent = self.field_list_parent.to_node(&root);
         let old_field_list = field_list_parent.record_expr_field_list()?;
-        let mut new_field_list = old_field_list.clone();
+        let new_field_list = old_field_list.clone_for_update();
         for f in self.missed_fields.iter() {
             let field =
-                make::record_expr_field(make::name_ref(&f.to_string()), Some(make::expr_unit()));
-            new_field_list = new_field_list.append_field(&field);
+                make::record_expr_field(make::name_ref(&f.to_string()), Some(make::expr_unit()))
+                    .clone_for_update();
+            new_field_list.add_field(field);
         }
 
         let edit = {