From 285c461cd2c7f7cf2afb1782cefe11462813e3af Mon Sep 17 00:00:00 2001
From: Jean Boussier <jean.boussier@gmail.com>
Date: Sat, 30 Jan 2021 13:43:50 +0100
Subject: [PATCH] Cache dispatch cache in an instance variable

---
 lib/psych/visitors/visitor.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/psych/visitors/visitor.rb b/lib/psych/visitors/visitor.rb
index e2585c0c..21052aa6 100644
--- a/lib/psych/visitors/visitor.rb
+++ b/lib/psych/visitors/visitor.rb
@@ -17,7 +17,7 @@ def self.dispatch_cache
 
       if defined?(Ractor)
         def dispatch
-          Ractor.current[:Psych_Visitors_Visitor] ||= Visitor.dispatch_cache
+          @dispatch_cache ||= (Ractor.current[:Psych_Visitors_Visitor] ||= Visitor.dispatch_cache)
         end
       else
         DISPATCH = dispatch_cache