From 62474586ba56f27d81e66c49233f79e15ad57a04 Mon Sep 17 00:00:00 2001
From: Dylan Thacker-Smith <Dylan.Smith@shopify.com>
Date: Tue, 30 Aug 2022 12:48:25 -0400
Subject: [PATCH] Add a variable_name method Increment and Decrement tags
 objects

In order to expose this state when using the parse tree.
---
 lib/liquid/tags/decrement.rb | 9 ++++++---
 lib/liquid/tags/increment.rb | 9 ++++++---
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/lib/liquid/tags/decrement.rb b/lib/liquid/tags/decrement.rb
index f1e67e2e7..1a2154d3b 100644
--- a/lib/liquid/tags/decrement.rb
+++ b/lib/liquid/tags/decrement.rb
@@ -19,15 +19,18 @@ module Liquid
   #   {% decrement variable_name %}
   # @liquid_syntax_keyword variable_name The name of the variable being decremented.
   class Decrement < Tag
+    attr_reader :variable_name
+
     def initialize(tag_name, markup, options)
       super
-      @variable = markup.strip
+      @variable_name = markup.strip
     end
 
     def render_to_output_buffer(context, output)
-      value = context.environments.first[@variable] ||= 0
+      counter_environment = context.environments.first
+      value = counter_environment[@variable_name] || 0
       value -= 1
-      context.environments.first[@variable] = value
+      counter_environment[@variable_name] = value
       output << value.to_s
       output
     end
diff --git a/lib/liquid/tags/increment.rb b/lib/liquid/tags/increment.rb
index f3edd3bc9..2965b3b12 100644
--- a/lib/liquid/tags/increment.rb
+++ b/lib/liquid/tags/increment.rb
@@ -19,14 +19,17 @@ module Liquid
   #   {% increment variable_name %}
   # @liquid_syntax_keyword variable_name The name of the variable being incremented.
   class Increment < Tag
+    attr_reader :variable_name
+
     def initialize(tag_name, markup, options)
       super
-      @variable = markup.strip
+      @variable_name = markup.strip
     end
 
     def render_to_output_buffer(context, output)
-      value = context.environments.first[@variable] ||= 0
-      context.environments.first[@variable] = value + 1
+      counter_environment = context.environments.first
+      value = counter_environment[@variable_name] || 0
+      counter_environment[@variable_name] = value + 1
 
       output << value.to_s
       output