13 files changed, 26 insertions, 0 deletions
diff --git a/actionpack/lib/abstract_controller/asset_paths.rb b/actionpack/lib/abstract_controller/asset_paths.rb
index e6170228d9..d6ee84b87b 100644
--- a/actionpack/lib/abstract_controller/asset_paths.rb
+++ b/actionpack/lib/abstract_controller/asset_paths.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module AssetPaths #:nodoc:
     extend ActiveSupport::Concern
diff --git a/actionpack/lib/abstract_controller/base.rb b/actionpack/lib/abstract_controller/base.rb
index bca850c0c0..3761054bb7 100644
--- a/actionpack/lib/abstract_controller/base.rb
+++ b/actionpack/lib/abstract_controller/base.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative "error"
 require "active_support/configurable"
 require "active_support/descendants_tracker"
diff --git a/actionpack/lib/abstract_controller/caching.rb b/actionpack/lib/abstract_controller/caching.rb
index 30e3d4426c..ce6b757c3c 100644
--- a/actionpack/lib/abstract_controller/caching.rb
+++ b/actionpack/lib/abstract_controller/caching.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module Caching
     extend ActiveSupport::Concern
diff --git a/actionpack/lib/abstract_controller/caching/fragments.rb b/actionpack/lib/abstract_controller/caching/fragments.rb
index 14e4a82523..f99b0830b2 100644
--- a/actionpack/lib/abstract_controller/caching/fragments.rb
+++ b/actionpack/lib/abstract_controller/caching/fragments.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module Caching
     # Fragment caching is used for caching various blocks within
diff --git a/actionpack/lib/abstract_controller/callbacks.rb b/actionpack/lib/abstract_controller/callbacks.rb
index e4400e8704..715d043b4e 100644
--- a/actionpack/lib/abstract_controller/callbacks.rb
+++ b/actionpack/lib/abstract_controller/callbacks.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   # = Abstract Controller Callbacks
   #
diff --git a/actionpack/lib/abstract_controller/collector.rb b/actionpack/lib/abstract_controller/collector.rb
index 40ae5aa1ca..297ec5ca40 100644
--- a/actionpack/lib/abstract_controller/collector.rb
+++ b/actionpack/lib/abstract_controller/collector.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "action_dispatch/http/mime_type"
 
 module AbstractController
diff --git a/actionpack/lib/abstract_controller/error.rb b/actionpack/lib/abstract_controller/error.rb
index 7fafce4dd4..89a54f072e 100644
--- a/actionpack/lib/abstract_controller/error.rb
+++ b/actionpack/lib/abstract_controller/error.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   class Error < StandardError #:nodoc:
   end
diff --git a/actionpack/lib/abstract_controller/helpers.rb b/actionpack/lib/abstract_controller/helpers.rb
index 2e50637c39..35b462bc92 100644
--- a/actionpack/lib/abstract_controller/helpers.rb
+++ b/actionpack/lib/abstract_controller/helpers.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support/dependencies"
 
 module AbstractController
diff --git a/actionpack/lib/abstract_controller/logger.rb b/actionpack/lib/abstract_controller/logger.rb
index c31ea6c5b5..8d0acc1b5c 100644
--- a/actionpack/lib/abstract_controller/logger.rb
+++ b/actionpack/lib/abstract_controller/logger.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_support/benchmarkable"
 
 module AbstractController
diff --git a/actionpack/lib/abstract_controller/railties/routes_helpers.rb b/actionpack/lib/abstract_controller/railties/routes_helpers.rb
index 14b574e322..b6e5631a4e 100644
--- a/actionpack/lib/abstract_controller/railties/routes_helpers.rb
+++ b/actionpack/lib/abstract_controller/railties/routes_helpers.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module Railties
     module RoutesHelpers
diff --git a/actionpack/lib/abstract_controller/rendering.rb b/actionpack/lib/abstract_controller/rendering.rb
index 1c87739d42..41898c4c2e 100644
--- a/actionpack/lib/abstract_controller/rendering.rb
+++ b/actionpack/lib/abstract_controller/rendering.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require_relative "error"
 require "action_view"
 require "action_view/view_paths"
diff --git a/actionpack/lib/abstract_controller/translation.rb b/actionpack/lib/abstract_controller/translation.rb
index e4ac95df50..666e154e4c 100644
--- a/actionpack/lib/abstract_controller/translation.rb
+++ b/actionpack/lib/abstract_controller/translation.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   module Translation
     # Delegates to <tt>I18n.translate</tt>. Also aliased as <tt>t</tt>.
diff --git a/actionpack/lib/abstract_controller/url_for.rb b/actionpack/lib/abstract_controller/url_for.rb
index 72d07b0927..bd74c27d3b 100644
--- a/actionpack/lib/abstract_controller/url_for.rb
+++ b/actionpack/lib/abstract_controller/url_for.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module AbstractController
   # Includes +url_for+ into the host class (e.g. an abstract controller or mailer). The class
   # has to provide a +RouteSet+ by implementing the <tt>_routes</tt> methods. Otherwise, an