Initializer provides its context class name

railties/lib/rails/initializable.rb

@@ -9,8 +9,6 @@ module Rails
     class Initializer
       attr_reader :name, :block
 
-      delegate :railtie_name, to: :@context
-
       def initialize(name, context, options, &block)
         options[:group] ||= :default
         @name, @context, @options, @block = name, context, options, block
@@ -36,6 +34,10 @@ module Rails
         return self if @context
         Initializer.new(@name, context, @options, &block)
       end
+
+      def context_class
+        @context.class
+      end
     end
 
     class Collection < Array

railties/lib/rails/tasks/initializers.rake

@@ -1,6 +1,6 @@
 desc "Print out all defined initializers in the order they are invoked by Rails."
 task initializers: :environment do
   Rails.application.initializers.tsort_each do |initializer|
-    puts "#{initializer.railtie_name}.#{initializer.name}"
+    puts "#{initializer.context_class}.#{initializer.name}"
   end
 end

railties/test/initializable_test.rb

@@ -174,6 +174,11 @@ module InitializableTests
         end
       end
     end
+
+    test "Initializer provides context's class name" do
+      foo = Foo.new
+      assert_equal foo.class, foo.initializers.first.context_class
+    end
   end
 
   class BeforeAfter < ActiveSupport::TestCase