From 20bb5783f88d0c5659846adfd11bb63f55b76991 Mon Sep 17 00:00:00 2001
From: Alex <468442+4lllex@users.noreply.github.com>
Date: Wed, 17 Jun 2026 16:14:09 -0400
Subject: [PATCH] Fix incorrect method visibility when merging with existing
 store cache

Running Store#save with already existing cache incorrectly sets method
visibility to `:private` on all methods.
---
 lib/rdoc/code_object/class_module.rb | 1 +
 test/rdoc/rdoc_store_test.rb         | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/lib/rdoc/code_object/class_module.rb b/lib/rdoc/code_object/class_module.rb
index 76ded527a1..148c8a806d 100644
--- a/lib/rdoc/code_object/class_module.rb
+++ b/lib/rdoc/code_object/class_module.rb
@@ -538,6 +538,7 @@ def merge(class_module)
 
     merge_collections method_list, cm.method_list, other_files do |add, meth|
       if add then
+        @visibility = meth.visibility
         add_method meth
       else
         @method_list.delete meth
diff --git a/test/rdoc/rdoc_store_test.rb b/test/rdoc/rdoc_store_test.rb
index 76f2a079a5..4c288e1e42 100644
--- a/test/rdoc/rdoc_store_test.rb
+++ b/test/rdoc/rdoc_store_test.rb
@@ -951,6 +951,14 @@ def test_save_class_merge_constant
     assert_empty result.constants
   end
 
+  def test_save_class_merge_method_visibility
+    @s.save_class @klass
+    assert_equal :public, @meth.visibility
+
+    @s.save_class @klass # save again to trigger ClassModule#merge
+    assert_equal :public, @meth.visibility
+  end
+
   def test_save_class_methods
     @s.save_class @klass