1 files changed, 44 insertions, 0 deletions
diff --git a/railties/lib/rails/autoloaders.rb b/railties/lib/rails/autoloaders.rb
new file mode 100644
index 0000000000..1bd3f18a74
--- /dev/null
+++ b/railties/lib/rails/autoloaders.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require "active_support/dependencies/zeitwerk_integration"
+
+module Rails
+  module Autoloaders # :nodoc:
+    class << self
+      include Enumerable
+
+      def main
+        if zeitwerk_enabled?
+          @main ||= Zeitwerk::Loader.new.tap do |loader|
+            loader.tag = "rails.main"
+            loader.inflector = ActiveSupport::Dependencies::ZeitwerkIntegration::Inflector
+          end
+        end
+      end
+
+      def once
+        if zeitwerk_enabled?
+          @once ||= Zeitwerk::Loader.new.tap do |loader|
+            loader.tag = "rails.once"
+            loader.inflector = ActiveSupport::Dependencies::ZeitwerkIntegration::Inflector
+          end
+        end
+      end
+
+      def each
+        if zeitwerk_enabled?
+          yield main
+          yield once
+        end
+      end
+
+      def logger=(logger)
+        each { |loader| loader.logger = logger }
+      end
+
+      def zeitwerk_enabled?
+        Rails.configuration.autoloader == :zeitwerk
+      end
+    end
+  end
+end