From ebc2ce62433146a555135ae146322a8378d994df Mon Sep 17 00:00:00 2001
From: Daisuke Aritomo <osyoyu@osyoyu.com>
Date: Mon, 15 Dec 2025 19:25:45 +0900
Subject: [PATCH] Freeze ERB::Compiler::TrimScanner::ERB_STAG

For Ractor compatibility.
---
 lib/erb/compiler.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/erb/compiler.rb b/lib/erb/compiler.rb
index 8a4d85c..6d70288 100644
--- a/lib/erb/compiler.rb
+++ b/lib/erb/compiler.rb
@@ -225,7 +225,7 @@ def explicit_trim_line(line)
       end
     end
 
-    ERB_STAG = %w(<%= <%# <%)
+    ERB_STAG = %w(<%= <%# <%).freeze
     def is_erb_stag?(s)
       ERB_STAG.member?(s)
     end