From 2258243ad87e731eba62b7c30a52c612076ba545 Mon Sep 17 00:00:00 2001
From: Kevin Ballard <kevin@sb.org>
Date: Wed, 29 Jan 2014 00:33:37 -0800
Subject: Allow empty functional updating of structs

Fixes #8972
---
 src/libsyntax/print/pprust.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/libsyntax/print/pprust.rs')

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index d3c194b6af6..6930a8395c4 100644
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -1189,8 +1189,10 @@ pub fn print_expr(s: &mut State, expr: &ast::Expr) {
         match wth {
             Some(expr) => {
                 ibox(s, indent_unit);
-                word(&mut s.s, ",");
-                space(&mut s.s);
+                if !fields.is_empty() {
+                    word(&mut s.s, ",");
+                    space(&mut s.s);
+                }
                 word(&mut s.s, "..");
                 print_expr(s, expr);
                 end(s);
-- 
cgit 1.4.1-3-g733a5