Teach libsyntax about if let

2014-08-24 18:04:29 -07:00
parent 38015eeb70
commit 5d8cfd53b5
6 changed files with 71 additions and 13 deletions
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -1205,6 +1205,12 @@ pub fn noop_fold_expr<T: Folder>(Expr {id, node, span}: Expr, folder: &mut T) ->
                       folder.fold_block(tr),
                       fl.map(|x| folder.fold_expr(x)))
            }
+            ExprIfLet(pat, expr, tr, fl) => {
+                ExprIfLet(folder.fold_pat(pat),
+                          folder.fold_expr(expr),
+                          folder.fold_block(tr),
+                          fl.map(|x| folder.fold_expr(x)))
+            }
            ExprWhile(cond, body, opt_ident) => {
                ExprWhile(folder.fold_expr(cond),
                          folder.fold_block(body),