From 6b25f640a6ad8e2322b5cc0664223b742459336d Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 30 Jul 2020 17:57:58 +0200
Subject: [PATCH] Finalize Enum grammar

---
 xtask/src/codegen/rust.ungram | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xtask/src/codegen/rust.ungram b/xtask/src/codegen/rust.ungram
index 48d4f4b4a04..b653c14a7fc 100644
--- a/xtask/src/codegen/rust.ungram
+++ b/xtask/src/codegen/rust.ungram
@@ -103,7 +103,7 @@ Enum =
   VariantList
 
 VariantList =
- '{' Variant* '}'
+ '{' (Variant (',' Variant)* ','?)? '}'
 
 Variant =
   Attr* Visibility? Name FieldList ('=' Expr)?