2 files changed, 8 insertions, 1 deletions

diff --git a/crates/syntax/src/algo.rs b/crates/syntax/src/algo.rs
index 7ac6076a4..320c430c9 100644
--- a/crates/syntax/src/algo.rs
+++ b/crates/syntax/src/algo.rs
@@ -349,7 +349,10 @@ pub struct SyntaxRewriter<'a> {
 
 impl fmt::Debug for SyntaxRewriter<'_> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("SyntaxRewriter").field("replacements", &self.replacements).finish()
+        f.debug_struct("SyntaxRewriter")
+            .field("replacements", &self.replacements)
+            .field("insertions", &self.insertions)
+            .finish()
     }
 }
 
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index b1578820f..876659a2b 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -25,6 +25,10 @@ pub fn assoc_item_list() -> ast::AssocItemList {
     ast_from_text("impl C for D {};")
 }
 
+pub fn impl_trait(trait_: ast::Path, ty: ast::Path) -> ast::Impl {
+    ast_from_text(&format!("impl {} for {} {{}}", trait_, ty))
+}
+
 pub fn path_segment(name_ref: ast::NameRef) -> ast::PathSegment {
     ast_from_text(&format!("use {};", name_ref))
 }