1 files changed, 6 insertions, 0 deletions
diff --git a/src/syntax/visit.rs b/src/syntax/visit.rs
index 2d3c683f..1bf260c7 100644
--- a/src/syntax/visit.rs
+++ b/src/syntax/visit.rs
@@ -61,6 +61,7 @@ visit! {
             Expr::Call(e) => v.visit_call(e),
             Expr::Let(e) => v.visit_let(e),
             Expr::If(e) => v.visit_if(e),
+            Expr::While(e) => v.visit_while(e),
             Expr::For(e) => v.visit_for(e),
         }
     }
@@ -132,6 +133,11 @@ visit! {
         }
     }
 
+    fn visit_while(v, node: &ExprWhile) {
+        v.visit_expr(&node.condition);
+        v.visit_expr(&node.body);
+    }
+
     fn visit_for(v, node: &ExprFor) {
         v.visit_expr(&node.iter);
         v.visit_expr(&node.body);