From 2e236b0a0ea9408a8d29643151a2c9f87ded18d4 Mon Sep 17 00:00:00 2001
From: Michael Go <michael.go@shopify.com>
Date: Fri, 10 Jan 2025 14:58:23 -0400
Subject: [PATCH] fix expression cache to be compatible with Ruby Hash and
 LruCache

---
 lib/liquid/expression.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/liquid/expression.rb b/lib/liquid/expression.rb
index f10c25db..f2abb2fc 100644
--- a/lib/liquid/expression.rb
+++ b/lib/liquid/expression.rb
@@ -44,7 +44,9 @@ module Liquid
 
         # Cache only exists during parsing
         if cache
-          cache.getset(markup) { inner_parse(markup, ss, cache).freeze }
+          return cache[markup] if cache.key?(markup)
+
+          cache[markup] = inner_parse(markup, ss, cache).freeze
         else
           inner_parse(markup, ss, nil).freeze
         end