From b5b36665e618935ea796d7c108dbe1fc1734cdbe Mon Sep 17 00:00:00 2001
From: Michael Go <michael.go@shopify.com>
Date: Wed, 15 Oct 2025 10:08:13 -0300
Subject: [PATCH] avoid new regex allocation in util functions

---
 lib/liquid/utils.rb | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/liquid/utils.rb b/lib/liquid/utils.rb
index a75b9fa3..2bdb0c52 100644
--- a/lib/liquid/utils.rb
+++ b/lib/liquid/utils.rb
@@ -2,6 +2,9 @@
 
 module Liquid
   module Utils
+    DECIMAL_REGEX = /\A-?\d+\.\d+\z/
+    UNIX_TIMESTAMP_REGEX = /\A\d+\z/
+
     def self.slice_collection(collection, from, to)
       if (from != 0 || !to.nil?) && collection.respond_to?(:load_slice)
         collection.load_slice(from, to)
@@ -52,7 +55,7 @@ module Liquid
       when Numeric
         obj
       when String
-        /\A-?\d+\.\d+\z/.match?(obj.strip) ? BigDecimal(obj) : obj.to_i
+        DECIMAL_REGEX.match?(obj.strip) ? BigDecimal(obj) : obj.to_i
       else
         if obj.respond_to?(:to_number)
           obj.to_number
@@ -73,7 +76,7 @@ module Liquid
       case obj
       when 'now', 'today'
         Time.now
-      when /\A\d+\z/, Integer
+      when UNIX_TIMESTAMP_REGEX, Integer
         Time.at(obj.to_i)
       when String
         Time.parse(obj)