From 94d6ec1d90bb28e5f303867b048e6322d8781cb1 Mon Sep 17 00:00:00 2001
From: Kazuki Tsujimoto <kazuki@callcc.net>
Date: Sun, 1 Sep 2019 16:39:34 +0900
Subject: Make pattern matching support **nil syntax

---
 node.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'node.c')

diff --git a/node.c b/node.c
index 4c2810b0e2..f4df845d2c 100644
--- a/node.c
+++ b/node.c
@@ -1065,7 +1065,12 @@ dump_node(VALUE buf, VALUE indent, int comment, const NODE * node)
         F_NODE(nd_pconst, "constant");
         F_NODE(nd_pkwargs, "keyword arguments");
         LAST_NODE;
-        F_NODE(nd_pkwrestarg, "keyword rest argument");
+        if (node->nd_pkwrestarg == NODE_SPECIAL_NO_REST_KEYWORD) {
+            F_MSG(nd_pkwrestarg, "keyword rest argument", "NODE_SPECIAL_NO_REST_KEYWORD (**nil)");
+        }
+        else {
+            F_NODE(nd_pkwrestarg, "keyword rest argument");
+        }
         return;
 
       case NODE_ARGS_AUX:
-- 
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