From 0c2c8116a307e88f8327e0ea846d2c9c135193b7 Mon Sep 17 00:00:00 2001
From: John Gallagher <jgallagher@bignerdranch.com>
Date: Thu, 2 Oct 2014 22:45:46 -0400
Subject: Teach libsyntax about `while let`

---
 src/libsyntax/fold.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/libsyntax/fold.rs')

diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 32e226361e9..6ecb4d3208d 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -1218,6 +1218,12 @@ pub fn noop_fold_expr<T: Folder>(Expr {id, node, span}: Expr, folder: &mut T) ->
                           folder.fold_block(body),
                           opt_ident.map(|i| folder.fold_ident(i)))
             }
+            ExprWhileLet(pat, expr, body, opt_ident) => {
+                ExprWhileLet(folder.fold_pat(pat),
+                             folder.fold_expr(expr),
+                             folder.fold_block(body),
+                             opt_ident.map(|i| folder.fold_ident(i)))
+            }
             ExprForLoop(pat, iter, body, opt_ident) => {
                 ExprForLoop(folder.fold_pat(pat),
                             folder.fold_expr(iter),
-- 
cgit 1.4.1-3-g733a5