2 files changed, 4 insertions, 11 deletions

diff --git a/crates/syntax/src/ast/edit.rs b/crates/syntax/src/ast/edit.rs
index 8c60927e4..cbc75f922 100644
--- a/crates/syntax/src/ast/edit.rs
+++ b/crates/syntax/src/ast/edit.rs
@@ -665,18 +665,8 @@ pub trait AstNodeEdit: AstNode + Clone + Sized {
 
     #[must_use]
     fn replace_descendant<D: AstNode>(&self, old: D, new: D) -> Self {
-        self.replace_descendants(iter::once((old, new)))
-    }
-
-    #[must_use]
-    fn replace_descendants<D: AstNode>(
-        &self,
-        replacement_map: impl IntoIterator<Item = (D, D)>,
-    ) -> Self {
         let mut rewriter = SyntaxRewriter::default();
-        for (from, to) in replacement_map {
-            rewriter.replace(from.syntax(), to.syntax())
-        }
+        rewriter.replace(old.syntax(), new.syntax());
         rewriter.rewrite_ast(self)
     }
     fn indent_level(&self) -> IndentLevel {
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index f8b508a90..5a6687397 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -275,6 +275,9 @@ pub fn expr_tuple(elements: impl IntoIterator<Item = ast::Expr>) -> ast::Expr {
     let expr = elements.into_iter().format(", ");
     expr_from_text(&format!("({})", expr))
 }
+pub fn expr_assignment(lhs: ast::Expr, rhs: ast::Expr) -> ast::Expr {
+    expr_from_text(&format!("{} = {}", lhs, rhs))
+}
 fn expr_from_text(text: &str) -> ast::Expr {
     ast_from_text(&format!("const C: () = {};", text))
 }