From 2a01e263bcb2d826f2a398b4c34b59485a201274 Mon Sep 17 00:00:00 2001
From: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
Date: Mon, 9 Nov 2015 22:16:30 +0300
Subject: Improve error message

---
 src/libsyntax/feature_gate.rs | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/libsyntax')

diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index a0c089aff21..94b5cf46dd1 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -867,6 +867,8 @@ impl<'a, 'v> Visitor<'v> for PostExpansionVisitor<'a> {
                 self.context.span_handler.span_err(span, "empty tuple structs and enum variants \
                                                           are not allowed, use unit structs and \
                                                           enum variants instead");
+                self.context.span_handler.span_help(span, "remove trailing () to make a unit \
+                                                           struct or unit enum varian");
             }
         }
         visit::walk_struct_def(self, s)
-- 
cgit 1.4.1-3-g733a5