From 25100c469758dd3676ec608ed27fd89248980666 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 10 Oct 2019 08:53:46 +0900
Subject: [PATCH] lhs of pattern matching expression of should have a value

---
 parse.y | 1 +
 1 file changed, 1 insertion(+)

diff --git a/parse.y b/parse.y
index cddeb3c2d5..72470af7dd 100644
--- a/parse.y
+++ b/parse.y
@@ -1540,6 +1540,7 @@ expr		: command_call
 		    }
 		| arg keyword_in
 		    {
+			value_expr($1);
 			SET_LEX_STATE(EXPR_BEG|EXPR_LABEL);
 			p->command_start = FALSE;
 			$<num>$ = p->in_kwarg;