Use closure parse code

2 files changed, 8 insertions, 0 deletions

diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs
index 3987aea6066..66a8d1ce86a 100644
--- a/compiler/rustc_ast/src/ast.rs
+++ b/compiler/rustc_ast/src/ast.rs
@@ -1762,6 +1762,11 @@ pub enum CaptureBy {
     },
     /// `move` keyword was not specified.
     Ref,
+    /// `use |x| y + x`.
+    Use {
+        /// The span of the `use` keyword.
+        use_kw: Span,
+    },
 }
 
 /// Closure lifetime binder, `for<'a, 'b>` in `for<'a, 'b> |_: &'a (), _: &'b ()|`.
diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs
index 5841805abd7..ee894db7b96 100644
--- a/compiler/rustc_ast/src/mut_visit.rs
+++ b/compiler/rustc_ast/src/mut_visit.rs
@@ -1899,6 +1899,9 @@ fn walk_capture_by<T: MutVisitor>(vis: &mut T, capture_by: &mut CaptureBy) {
         CaptureBy::Value { move_kw } => {
             vis.visit_span(move_kw);
         }
+        CaptureBy::Use { use_kw } => {
+            vis.visit_span(use_kw);
+        }
     }
 }