From 96b5cde28bba189b6cfddce5d507eb751dda03b3 Mon Sep 17 00:00:00 2001
From: wanabe <s.wanabe@gmail.com>
Date: Wed, 15 Jan 2025 12:29:06 +0900
Subject: [PATCH] [ruby/erb] Make `ERB::NOT_GIVEN` ractor-shareable

https://github.com/ruby/erb/commit/348777b5bf
---
 lib/erb.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/erb.rb b/lib/erb.rb
index 79711db628..bdff2deceb 100644
--- a/lib/erb.rb
+++ b/lib/erb.rb
@@ -353,7 +353,7 @@ class ERB
     @lineno = 0
     @_init = self.class.singleton_class
   end
-  NOT_GIVEN = Object.new
+  NOT_GIVEN = defined?(Ractor) ? Ractor.make_shareable(Object.new) : Object.new
   private_constant :NOT_GIVEN
 
   ##