From 0a17c152895ea3b482614082d18e39f5c26c1975 Mon Sep 17 00:00:00 2001
From: Michael Go <michael.go@shopify.com>
Date: Mon, 25 Nov 2024 15:39:48 -0400
Subject: [PATCH] freeze '-' VariableLookup in Expression

---
 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 b3e0b36e..32f357e7 100644
--- a/lib/liquid/expression.rb
+++ b/lib/liquid/expression.rb
@@ -58,7 +58,9 @@ module Liquid
       'false' => false,
       'blank' => '',
       'empty' => '',
-      '-' => VariableLookup.parse("-", nil),
+      # in lax mode, minus sign can be a VariableLookup
+      # For simplicity and performace, we treat it like a literal
+      '-' => VariableLookup.parse("-", nil).freeze,
     }.freeze
 
     DOT = ".".ord