`respond_to_missing?` should be private

Follow up of 03d3f036.

Some of `respond_to?` were replaced to `respond_to_missing?` in 03d3f036.
But the visibility is still public. It should be private.

5 files changed, 18 insertions, 26 deletions

diff --git a/activerecord/lib/active_record/dynamic_matchers.rb b/activerecord/lib/active_record/dynamic_matchers.rb
index d9912cfb22..3a9625092e 100644
--- a/activerecord/lib/active_record/dynamic_matchers.rb
+++ b/activerecord/lib/active_record/dynamic_matchers.rb
@@ -1,15 +1,14 @@
 module ActiveRecord
   module DynamicMatchers #:nodoc:
-    def respond_to_missing?(name, include_private = false)
-      if self == Base
-        super
-      else
-        match = Method.match(self, name)
-        match && match.valid? || super
-      end
-    end
-
     private
+      def respond_to_missing?(name, _)
+        if self == Base
+          super
+        else
+          match = Method.match(self, name)
+          match && match.valid? || super
+        end
+      end
 
       def method_missing(name, *arguments, &block)
         match = Method.match(self, name)
diff --git a/activerecord/lib/active_record/migration/command_recorder.rb b/activerecord/lib/active_record/migration/command_recorder.rb
index 03103bba98..f9cf59b283 100644
--- a/activerecord/lib/active_record/migration/command_recorder.rb
+++ b/activerecord/lib/active_record/migration/command_recorder.rb
@@ -92,10 +92,6 @@ module ActiveRecord
         send(method, args, &block)
       end
 
-      def respond_to_missing?(*args) # :nodoc:
-        super || delegate.respond_to?(*args)
-      end
-
       ReversibleAndIrreversibleMethods.each do |method|
         class_eval <<-EOV, __FILE__, __LINE__ + 1
           def #{method}(*args, &block)          # def create_table(*args, &block)
@@ -225,10 +221,14 @@ module ActiveRecord
           [:add_foreign_key, reversed_args]
         end
 
+        def respond_to_missing?(method, _)
+          super || delegate.respond_to?(method)
+        end
+
         # Forwards any missing method call to the \target.
         def method_missing(method, *args, &block)
-          if @delegate.respond_to?(method)
-            @delegate.send(method, *args, &block)
+          if delegate.respond_to?(method)
+            delegate.public_send(method, *args, &block)
           else
             super
           end
diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb
index 50378f9d99..8b4dd25689 100644
--- a/activerecord/lib/active_record/relation/delegation.rb
+++ b/activerecord/lib/active_record/relation/delegation.rb
@@ -109,12 +109,10 @@ module ActiveRecord
         end
     end
 
-    def respond_to_missing?(method, include_private = false)
-      super || @klass.respond_to?(method, include_private) ||
-        arel.respond_to?(method, include_private)
-    end
-
     private
+      def respond_to_missing?(method, _)
+        super || @klass.respond_to?(method) || arel.respond_to?(method)
+      end
 
       def method_missing(method, *args, &block)
         if @klass.respond_to?(method)
diff --git a/activerecord/test/cases/associations/has_many_associations_test.rb b/activerecord/test/cases/associations/has_many_associations_test.rb
index 25133fc580..7429eb7425 100644
--- a/activerecord/test/cases/associations/has_many_associations_test.rb
+++ b/activerecord/test/cases/associations/has_many_associations_test.rb
@@ -2040,7 +2040,6 @@ class HasManyAssociationsTest < ActiveRecord::TestCase
   def test_respond_to_private_class_methods
     client_association = companies(:first_firm).clients
     assert !client_association.respond_to?(:private_method)
-    assert client_association.respond_to?(:private_method, true)
   end
 
   def test_creating_using_primary_key
diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb
index fcf68b0f2a..7a710f1004 100644
--- a/activerecord/test/cases/relations_test.rb
+++ b/activerecord/test/cases/relations_test.rb
@@ -594,7 +594,7 @@ class RelationTest < ActiveRecord::TestCase
     end
   end
 
-  def test_respond_to_delegates_to_relation
+  def test_respond_to_delegates_to_arel
     relation = Topic.all
     fake_arel = Struct.new(:responds) {
       def respond_to?(method, access = false)
@@ -607,10 +607,6 @@ class RelationTest < ActiveRecord::TestCase
 
     relation.respond_to?(:matching_attributes)
     assert_equal [:matching_attributes, false], fake_arel.responds.first
-
-    fake_arel.responds = []
-    relation.respond_to?(:matching_attributes, true)
-    assert_equal [:matching_attributes, true], fake_arel.responds.first
   end
 
   def test_respond_to_dynamic_finders