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-rw-r--r--activesupport/lib/active_support/core_ext/array.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/access.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/extract_options.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/grouping.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/inquiry.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/prepend_and_append.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/array/wrap.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/benchmark.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/big_decimal.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/big_decimal/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/class.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/class/attribute.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/class/attribute_accessors.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/class/subclasses.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date/acts_like.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date/blank.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date/calculations.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date/zones.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_and_time/calculations.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_and_time/zones.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time/acts_like.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time/blank.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time/calculations.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time/compatibility.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/date_time/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/digest/uuid.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/enumerable.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/file.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/file/atomic.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/compact.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/deep_merge.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/except.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/indifferent_access.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/keys.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/reverse_merge.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/slice.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/hash/transform_values.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/integer.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/integer/inflections.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/integer/multiple.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/integer/time.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/kernel.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/kernel/agnostics.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/kernel/concern.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/kernel/reporting.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/kernel/singleton_class.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/load_error.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/marshal.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/aliasing.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/anonymous.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/attr_internal.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/attribute_accessors.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/concerning.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/delegation.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/deprecation.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/introspection.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/reachable.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/module/remove_method.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/name_error.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/numeric.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/numeric/bytes.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/numeric/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/numeric/inquiry.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/numeric/time.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/acts_like.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/blank.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/deep_dup.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/duplicable.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/inclusion.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/instance_variables.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/json.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/to_param.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/to_query.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/try.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/object/with_options.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/range.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/range/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/range/each.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/range/include_range.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/range/overlaps.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/regexp.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/securerandom.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/access.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/behavior.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/exclude.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/filters.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/indent.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/inflections.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/inquiry.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/multibyte.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/output_safety.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/starts_ends_with.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/strip.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/string/zones.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time/acts_like.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time/calculations.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time/compatibility.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time/conversions.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/time/zones.rb1
-rw-r--r--activesupport/lib/active_support/core_ext/uri.rb1
114 files changed, 114 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/array.rb b/activesupport/lib/active_support/core_ext/array.rb
index 3536c7f2bf..c2876785dc 100644
--- a/activesupport/lib/active_support/core_ext/array.rb
+++ b/activesupport/lib/active_support/core_ext/array.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "array/wrap"
require_relative "array/access"
require_relative "array/conversions"
diff --git a/activesupport/lib/active_support/core_ext/array/access.rb b/activesupport/lib/active_support/core_ext/array/access.rb
index fca33c9d69..b6e576ad29 100644
--- a/activesupport/lib/active_support/core_ext/array/access.rb
+++ b/activesupport/lib/active_support/core_ext/array/access.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Array
# Returns the tail of the array from +position+.
#
diff --git a/activesupport/lib/active_support/core_ext/array/conversions.rb b/activesupport/lib/active_support/core_ext/array/conversions.rb
index 57ad32483a..eeafde78a4 100644
--- a/activesupport/lib/active_support/core_ext/array/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/array/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../xml_mini"
require_relative "../hash/keys"
require_relative "../string/inflections"
diff --git a/activesupport/lib/active_support/core_ext/array/extract_options.rb b/activesupport/lib/active_support/core_ext/array/extract_options.rb
index 9008a0df2a..8204d42caf 100644
--- a/activesupport/lib/active_support/core_ext/array/extract_options.rb
+++ b/activesupport/lib/active_support/core_ext/array/extract_options.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# By default, only instances of Hash itself are extractable.
# Subclasses of Hash may implement this method and return
diff --git a/activesupport/lib/active_support/core_ext/array/grouping.rb b/activesupport/lib/active_support/core_ext/array/grouping.rb
index 0d798e5c4e..706c576691 100644
--- a/activesupport/lib/active_support/core_ext/array/grouping.rb
+++ b/activesupport/lib/active_support/core_ext/array/grouping.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Array
# Splits or iterates over the array in groups of size +number+,
# padding any remaining slots with +fill_with+ unless it is +false+.
diff --git a/activesupport/lib/active_support/core_ext/array/inquiry.rb b/activesupport/lib/active_support/core_ext/array/inquiry.rb
index c46b01baf0..b8a1bbdbc7 100644
--- a/activesupport/lib/active_support/core_ext/array/inquiry.rb
+++ b/activesupport/lib/active_support/core_ext/array/inquiry.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../array_inquirer"
class Array
diff --git a/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb b/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb
index 88a34128c9..2dd1547765 100644
--- a/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb
+++ b/activesupport/lib/active_support/core_ext/array/prepend_and_append.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Array
# The human way of thinking about adding stuff to the end of a list is with append.
alias_method :append, :push unless [].respond_to?(:append)
diff --git a/activesupport/lib/active_support/core_ext/array/wrap.rb b/activesupport/lib/active_support/core_ext/array/wrap.rb
index b611d34c27..adb25718e4 100644
--- a/activesupport/lib/active_support/core_ext/array/wrap.rb
+++ b/activesupport/lib/active_support/core_ext/array/wrap.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Array
# Wraps its argument in an array unless it is already an array (or array-like).
#
diff --git a/activesupport/lib/active_support/core_ext/benchmark.rb b/activesupport/lib/active_support/core_ext/benchmark.rb
index 2300953860..2db6e5f1c5 100644
--- a/activesupport/lib/active_support/core_ext/benchmark.rb
+++ b/activesupport/lib/active_support/core_ext/benchmark.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "benchmark"
class << Benchmark
diff --git a/activesupport/lib/active_support/core_ext/big_decimal.rb b/activesupport/lib/active_support/core_ext/big_decimal.rb
index 7e396cac3c..fd860f6fbd 100644
--- a/activesupport/lib/active_support/core_ext/big_decimal.rb
+++ b/activesupport/lib/active_support/core_ext/big_decimal.rb
@@ -1 +1,2 @@
+# frozen_string_literal: true
require_relative "big_decimal/conversions"
diff --git a/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
index decd4e1699..1729f00530 100644
--- a/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/big_decimal/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "bigdecimal"
require "bigdecimal/util"
diff --git a/activesupport/lib/active_support/core_ext/class.rb b/activesupport/lib/active_support/core_ext/class.rb
index 66dd1c939a..882102831f 100644
--- a/activesupport/lib/active_support/core_ext/class.rb
+++ b/activesupport/lib/active_support/core_ext/class.rb
@@ -1,2 +1,3 @@
+# frozen_string_literal: true
require_relative "class/attribute"
require_relative "class/subclasses"
diff --git a/activesupport/lib/active_support/core_ext/class/attribute.rb b/activesupport/lib/active_support/core_ext/class/attribute.rb
index 26b826b39b..a6da65e96d 100644
--- a/activesupport/lib/active_support/core_ext/class/attribute.rb
+++ b/activesupport/lib/active_support/core_ext/class/attribute.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../kernel/singleton_class"
require_relative "../module/remove_method"
require_relative "../array/extract_options"
diff --git a/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb b/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb
index eebf2e294a..0345478c59 100644
--- a/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb
+++ b/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
# cattr_* became mattr_* aliases in 7dfbd91b0780fbd6a1dd9bfbc176e10894871d2d,
# but we keep this around for libraries that directly require it knowing they
# want cattr_*. No need to deprecate.
diff --git a/activesupport/lib/active_support/core_ext/class/subclasses.rb b/activesupport/lib/active_support/core_ext/class/subclasses.rb
index 545ad7fb3e..ce7b422cfb 100644
--- a/activesupport/lib/active_support/core_ext/class/subclasses.rb
+++ b/activesupport/lib/active_support/core_ext/class/subclasses.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../module/anonymous"
require_relative "../module/reachable"
diff --git a/activesupport/lib/active_support/core_ext/date.rb b/activesupport/lib/active_support/core_ext/date.rb
index aba72c732f..88bae739b6 100644
--- a/activesupport/lib/active_support/core_ext/date.rb
+++ b/activesupport/lib/active_support/core_ext/date.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "date/acts_like"
require_relative "date/blank"
require_relative "date/calculations"
diff --git a/activesupport/lib/active_support/core_ext/date/acts_like.rb b/activesupport/lib/active_support/core_ext/date/acts_like.rb
index dfea3e3f09..c8ab7b5241 100644
--- a/activesupport/lib/active_support/core_ext/date/acts_like.rb
+++ b/activesupport/lib/active_support/core_ext/date/acts_like.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../object/acts_like"
class Date
diff --git a/activesupport/lib/active_support/core_ext/date/blank.rb b/activesupport/lib/active_support/core_ext/date/blank.rb
index edd2847126..a28e726902 100644
--- a/activesupport/lib/active_support/core_ext/date/blank.rb
+++ b/activesupport/lib/active_support/core_ext/date/blank.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
class Date #:nodoc:
diff --git a/activesupport/lib/active_support/core_ext/date/calculations.rb b/activesupport/lib/active_support/core_ext/date/calculations.rb
index 24d3721d48..d0ac71210a 100644
--- a/activesupport/lib/active_support/core_ext/date/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date/calculations.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../../duration"
require_relative "../object/acts_like"
diff --git a/activesupport/lib/active_support/core_ext/date/conversions.rb b/activesupport/lib/active_support/core_ext/date/conversions.rb
index 7971d39fb7..6c493dc2c8 100644
--- a/activesupport/lib/active_support/core_ext/date/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/date/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../../inflector/methods"
require_relative "zones"
diff --git a/activesupport/lib/active_support/core_ext/date/zones.rb b/activesupport/lib/active_support/core_ext/date/zones.rb
index d94c7bcfc2..f9bb6f733b 100644
--- a/activesupport/lib/active_support/core_ext/date/zones.rb
+++ b/activesupport/lib/active_support/core_ext/date/zones.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../date_and_time/zones"
diff --git a/activesupport/lib/active_support/core_ext/date_and_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_and_time/calculations.rb
index cf01a4542f..4e93851259 100644
--- a/activesupport/lib/active_support/core_ext/date_and_time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date_and_time/calculations.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../object/try"
module DateAndTime
diff --git a/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb b/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb
index bb9908df61..ffb1cbd6e5 100644
--- a/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb
+++ b/activesupport/lib/active_support/core_ext/date_and_time/compatibility.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../module/attribute_accessors"
module DateAndTime
diff --git a/activesupport/lib/active_support/core_ext/date_and_time/zones.rb b/activesupport/lib/active_support/core_ext/date_and_time/zones.rb
index edd724f1d0..4cc94d4ece 100644
--- a/activesupport/lib/active_support/core_ext/date_and_time/zones.rb
+++ b/activesupport/lib/active_support/core_ext/date_and_time/zones.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module DateAndTime
module Zones
# Returns the simultaneous time in <tt>Time.zone</tt> if a zone is given or
diff --git a/activesupport/lib/active_support/core_ext/date_time.rb b/activesupport/lib/active_support/core_ext/date_time.rb
index ce35026a71..fba37a5169 100644
--- a/activesupport/lib/active_support/core_ext/date_time.rb
+++ b/activesupport/lib/active_support/core_ext/date_time.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "date_time/acts_like"
require_relative "date_time/blank"
require_relative "date_time/calculations"
diff --git a/activesupport/lib/active_support/core_ext/date_time/acts_like.rb b/activesupport/lib/active_support/core_ext/date_time/acts_like.rb
index f0356ee6a0..74a2758830 100644
--- a/activesupport/lib/active_support/core_ext/date_time/acts_like.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/acts_like.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../object/acts_like"
diff --git a/activesupport/lib/active_support/core_ext/date_time/blank.rb b/activesupport/lib/active_support/core_ext/date_time/blank.rb
index b475fd926d..874c7554a3 100644
--- a/activesupport/lib/active_support/core_ext/date_time/blank.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/blank.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
class DateTime #:nodoc:
diff --git a/activesupport/lib/active_support/core_ext/date_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
index 7a9eb8c266..91289175ed 100644
--- a/activesupport/lib/active_support/core_ext/date_time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
class DateTime
diff --git a/activesupport/lib/active_support/core_ext/date_time/compatibility.rb b/activesupport/lib/active_support/core_ext/date_time/compatibility.rb
index fe255c087f..e2bb02d855 100644
--- a/activesupport/lib/active_support/core_ext/date_time/compatibility.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/compatibility.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../date_and_time/compatibility"
require_relative "../module/remove_method"
diff --git a/activesupport/lib/active_support/core_ext/date_time/conversions.rb b/activesupport/lib/active_support/core_ext/date_time/conversions.rb
index 36bfd28f31..2a35f9dbfb 100644
--- a/activesupport/lib/active_support/core_ext/date_time/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../../inflector/methods"
require_relative "../time/conversions"
diff --git a/activesupport/lib/active_support/core_ext/digest/uuid.rb b/activesupport/lib/active_support/core_ext/digest/uuid.rb
index e6d60e3267..26a300feb6 100644
--- a/activesupport/lib/active_support/core_ext/digest/uuid.rb
+++ b/activesupport/lib/active_support/core_ext/digest/uuid.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "securerandom"
module Digest
diff --git a/activesupport/lib/active_support/core_ext/enumerable.rb b/activesupport/lib/active_support/core_ext/enumerable.rb
index 3a4ae6cb8b..a744b78e1c 100644
--- a/activesupport/lib/active_support/core_ext/enumerable.rb
+++ b/activesupport/lib/active_support/core_ext/enumerable.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module Enumerable
# Enumerable#sum was added in Ruby 2.4, but it only works with Numeric elements
# when we omit an identity.
diff --git a/activesupport/lib/active_support/core_ext/file.rb b/activesupport/lib/active_support/core_ext/file.rb
index ea3267f5da..9de5fbb63c 100644
--- a/activesupport/lib/active_support/core_ext/file.rb
+++ b/activesupport/lib/active_support/core_ext/file.rb
@@ -1 +1,2 @@
+# frozen_string_literal: true
require_relative "file/atomic"
diff --git a/activesupport/lib/active_support/core_ext/file/atomic.rb b/activesupport/lib/active_support/core_ext/file/atomic.rb
index 8d6c0d3685..5b30e93357 100644
--- a/activesupport/lib/active_support/core_ext/file/atomic.rb
+++ b/activesupport/lib/active_support/core_ext/file/atomic.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "fileutils"
class File
diff --git a/activesupport/lib/active_support/core_ext/hash.rb b/activesupport/lib/active_support/core_ext/hash.rb
index 6122ac57ba..24b6adeb5f 100644
--- a/activesupport/lib/active_support/core_ext/hash.rb
+++ b/activesupport/lib/active_support/core_ext/hash.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "hash/compact"
require_relative "hash/conversions"
require_relative "hash/deep_merge"
diff --git a/activesupport/lib/active_support/core_ext/hash/compact.rb b/activesupport/lib/active_support/core_ext/hash/compact.rb
index e357284be0..ddccbe7d16 100644
--- a/activesupport/lib/active_support/core_ext/hash/compact.rb
+++ b/activesupport/lib/active_support/core_ext/hash/compact.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
unless Hash.instance_methods(false).include?(:compact)
# Returns a hash with non +nil+ values.
diff --git a/activesupport/lib/active_support/core_ext/hash/conversions.rb b/activesupport/lib/active_support/core_ext/hash/conversions.rb
index 713711e16a..193004608a 100644
--- a/activesupport/lib/active_support/core_ext/hash/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/hash/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../xml_mini"
require_relative "../../time"
require_relative "../object/blank"
diff --git a/activesupport/lib/active_support/core_ext/hash/deep_merge.rb b/activesupport/lib/active_support/core_ext/hash/deep_merge.rb
index 9c9faf67ea..1c6627a597 100644
--- a/activesupport/lib/active_support/core_ext/hash/deep_merge.rb
+++ b/activesupport/lib/active_support/core_ext/hash/deep_merge.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Returns a new hash with +self+ and +other_hash+ merged recursively.
#
diff --git a/activesupport/lib/active_support/core_ext/hash/except.rb b/activesupport/lib/active_support/core_ext/hash/except.rb
index 2f6d38c1f6..e31c7c61e4 100644
--- a/activesupport/lib/active_support/core_ext/hash/except.rb
+++ b/activesupport/lib/active_support/core_ext/hash/except.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Returns a hash that includes everything except given keys.
# hash = { a: true, b: false, c: nil }
diff --git a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
index 4b7fe34cc9..7727f0751e 100644
--- a/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
+++ b/activesupport/lib/active_support/core_ext/hash/indifferent_access.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../hash_with_indifferent_access"
class Hash
diff --git a/activesupport/lib/active_support/core_ext/hash/keys.rb b/activesupport/lib/active_support/core_ext/hash/keys.rb
index b7089357a8..b38ea9ba50 100644
--- a/activesupport/lib/active_support/core_ext/hash/keys.rb
+++ b/activesupport/lib/active_support/core_ext/hash/keys.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Returns a new hash with all keys converted using the +block+ operation.
#
diff --git a/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb b/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb
index 061c959442..2055d06385 100644
--- a/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb
+++ b/activesupport/lib/active_support/core_ext/hash/reverse_merge.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Merges the caller into +other_hash+. For example,
#
diff --git a/activesupport/lib/active_support/core_ext/hash/slice.rb b/activesupport/lib/active_support/core_ext/hash/slice.rb
index 161b00dfb3..bd370931e4 100644
--- a/activesupport/lib/active_support/core_ext/hash/slice.rb
+++ b/activesupport/lib/active_support/core_ext/hash/slice.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Slices a hash to include only the given keys. Returns a hash containing
# the given keys.
diff --git a/activesupport/lib/active_support/core_ext/hash/transform_values.rb b/activesupport/lib/active_support/core_ext/hash/transform_values.rb
index 2f693bff0c..b6e2734193 100644
--- a/activesupport/lib/active_support/core_ext/hash/transform_values.rb
+++ b/activesupport/lib/active_support/core_ext/hash/transform_values.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Hash
# Returns a new hash with the results of running +block+ once for every value.
# The keys are unchanged.
diff --git a/activesupport/lib/active_support/core_ext/integer.rb b/activesupport/lib/active_support/core_ext/integer.rb
index e7c1aae980..2042b5d311 100644
--- a/activesupport/lib/active_support/core_ext/integer.rb
+++ b/activesupport/lib/active_support/core_ext/integer.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "integer/multiple"
require_relative "integer/inflections"
require_relative "integer/time"
diff --git a/activesupport/lib/active_support/core_ext/integer/inflections.rb b/activesupport/lib/active_support/core_ext/integer/inflections.rb
index 0b2ada8b22..de756446ba 100644
--- a/activesupport/lib/active_support/core_ext/integer/inflections.rb
+++ b/activesupport/lib/active_support/core_ext/integer/inflections.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../inflector"
class Integer
diff --git a/activesupport/lib/active_support/core_ext/integer/multiple.rb b/activesupport/lib/active_support/core_ext/integer/multiple.rb
index c668c7c2eb..2e4d78e66c 100644
--- a/activesupport/lib/active_support/core_ext/integer/multiple.rb
+++ b/activesupport/lib/active_support/core_ext/integer/multiple.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Integer
# Check whether the integer is evenly divisible by the argument.
#
diff --git a/activesupport/lib/active_support/core_ext/integer/time.rb b/activesupport/lib/active_support/core_ext/integer/time.rb
index d5625dfd1c..583ef456f3 100644
--- a/activesupport/lib/active_support/core_ext/integer/time.rb
+++ b/activesupport/lib/active_support/core_ext/integer/time.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../duration"
require_relative "../numeric/time"
diff --git a/activesupport/lib/active_support/core_ext/kernel.rb b/activesupport/lib/active_support/core_ext/kernel.rb
index 26142b107b..9ac0ba3749 100644
--- a/activesupport/lib/active_support/core_ext/kernel.rb
+++ b/activesupport/lib/active_support/core_ext/kernel.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "kernel/agnostics"
require_relative "kernel/concern"
require_relative "kernel/reporting"
diff --git a/activesupport/lib/active_support/core_ext/kernel/agnostics.rb b/activesupport/lib/active_support/core_ext/kernel/agnostics.rb
index 64837d87aa..84a48979c4 100644
--- a/activesupport/lib/active_support/core_ext/kernel/agnostics.rb
+++ b/activesupport/lib/active_support/core_ext/kernel/agnostics.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Object
# Makes backticks behave (somewhat more) similarly on all platforms.
# On win32 `nonexistent_command` raises Errno::ENOENT; on Unix, the
diff --git a/activesupport/lib/active_support/core_ext/kernel/concern.rb b/activesupport/lib/active_support/core_ext/kernel/concern.rb
index 535f0d21df..e6df8aa46e 100644
--- a/activesupport/lib/active_support/core_ext/kernel/concern.rb
+++ b/activesupport/lib/active_support/core_ext/kernel/concern.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../module/concerning"
module Kernel
diff --git a/activesupport/lib/active_support/core_ext/kernel/reporting.rb b/activesupport/lib/active_support/core_ext/kernel/reporting.rb
index c02618d5f3..822efb5aae 100644
--- a/activesupport/lib/active_support/core_ext/kernel/reporting.rb
+++ b/activesupport/lib/active_support/core_ext/kernel/reporting.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module Kernel
module_function
diff --git a/activesupport/lib/active_support/core_ext/kernel/singleton_class.rb b/activesupport/lib/active_support/core_ext/kernel/singleton_class.rb
index 9bbf1bbd73..5f9c008f6e 100644
--- a/activesupport/lib/active_support/core_ext/kernel/singleton_class.rb
+++ b/activesupport/lib/active_support/core_ext/kernel/singleton_class.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module Kernel
# class_eval on an object acts like singleton_class.class_eval.
def class_eval(*args, &block)
diff --git a/activesupport/lib/active_support/core_ext/load_error.rb b/activesupport/lib/active_support/core_ext/load_error.rb
index d273487010..55177efdaf 100644
--- a/activesupport/lib/active_support/core_ext/load_error.rb
+++ b/activesupport/lib/active_support/core_ext/load_error.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class LoadError
REGEXPS = [
/^no such file to load -- (.+)$/i,
diff --git a/activesupport/lib/active_support/core_ext/marshal.rb b/activesupport/lib/active_support/core_ext/marshal.rb
index bba2b3be2e..13b1d0cf95 100644
--- a/activesupport/lib/active_support/core_ext/marshal.rb
+++ b/activesupport/lib/active_support/core_ext/marshal.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module ActiveSupport
module MarshalWithAutoloading # :nodoc:
def load(source, proc = nil)
diff --git a/activesupport/lib/active_support/core_ext/module.rb b/activesupport/lib/active_support/core_ext/module.rb
index 3ee394edd9..6c304292eb 100644
--- a/activesupport/lib/active_support/core_ext/module.rb
+++ b/activesupport/lib/active_support/core_ext/module.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "module/aliasing"
require_relative "module/introspection"
require_relative "module/anonymous"
diff --git a/activesupport/lib/active_support/core_ext/module/aliasing.rb b/activesupport/lib/active_support/core_ext/module/aliasing.rb
index c48bd3354a..62eb9e4c76 100644
--- a/activesupport/lib/active_support/core_ext/module/aliasing.rb
+++ b/activesupport/lib/active_support/core_ext/module/aliasing.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Module
# Allows you to make aliases for attributes, which includes
# getter, setter, and a predicate.
diff --git a/activesupport/lib/active_support/core_ext/module/anonymous.rb b/activesupport/lib/active_support/core_ext/module/anonymous.rb
index 510c9a5430..7d10240199 100644
--- a/activesupport/lib/active_support/core_ext/module/anonymous.rb
+++ b/activesupport/lib/active_support/core_ext/module/anonymous.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Module
# A module may or may not have a name.
#
diff --git a/activesupport/lib/active_support/core_ext/module/attr_internal.rb b/activesupport/lib/active_support/core_ext/module/attr_internal.rb
index 5081d5f7a3..8d37460dbc 100644
--- a/activesupport/lib/active_support/core_ext/module/attr_internal.rb
+++ b/activesupport/lib/active_support/core_ext/module/attr_internal.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Module
# Declares an attribute reader backed by an internally-named instance variable.
def attr_internal_reader(*attrs)
diff --git a/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb b/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb
index e978bd41d6..430b1accbc 100644
--- a/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb
+++ b/activesupport/lib/active_support/core_ext/module/attribute_accessors.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../array/extract_options"
require_relative "../regexp"
diff --git a/activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb b/activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb
index 9ef834fa6f..bc5d4b6dda 100644
--- a/activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb
+++ b/activesupport/lib/active_support/core_ext/module/attribute_accessors_per_thread.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../array/extract_options"
require_relative "../regexp"
diff --git a/activesupport/lib/active_support/core_ext/module/concerning.rb b/activesupport/lib/active_support/core_ext/module/concerning.rb
index eb821aba60..e4e49746b6 100644
--- a/activesupport/lib/active_support/core_ext/module/concerning.rb
+++ b/activesupport/lib/active_support/core_ext/module/concerning.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../concern"
class Module
diff --git a/activesupport/lib/active_support/core_ext/module/delegation.rb b/activesupport/lib/active_support/core_ext/module/delegation.rb
index 04f34e553d..dc6906081c 100644
--- a/activesupport/lib/active_support/core_ext/module/delegation.rb
+++ b/activesupport/lib/active_support/core_ext/module/delegation.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "set"
require_relative "../regexp"
diff --git a/activesupport/lib/active_support/core_ext/module/deprecation.rb b/activesupport/lib/active_support/core_ext/module/deprecation.rb
index f3f2e7f5fc..98dfaad760 100644
--- a/activesupport/lib/active_support/core_ext/module/deprecation.rb
+++ b/activesupport/lib/active_support/core_ext/module/deprecation.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Module
# deprecate :foo
# deprecate bar: 'message'
diff --git a/activesupport/lib/active_support/core_ext/module/introspection.rb b/activesupport/lib/active_support/core_ext/module/introspection.rb
index 4a7930792c..69122885ec 100644
--- a/activesupport/lib/active_support/core_ext/module/introspection.rb
+++ b/activesupport/lib/active_support/core_ext/module/introspection.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../inflector"
class Module
diff --git a/activesupport/lib/active_support/core_ext/module/reachable.rb b/activesupport/lib/active_support/core_ext/module/reachable.rb
index 0f78999634..023894055f 100644
--- a/activesupport/lib/active_support/core_ext/module/reachable.rb
+++ b/activesupport/lib/active_support/core_ext/module/reachable.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "anonymous"
require_relative "../string/inflections"
diff --git a/activesupport/lib/active_support/core_ext/module/remove_method.rb b/activesupport/lib/active_support/core_ext/module/remove_method.rb
index d5ec16d68a..c17808b244 100644
--- a/activesupport/lib/active_support/core_ext/module/remove_method.rb
+++ b/activesupport/lib/active_support/core_ext/module/remove_method.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Module
# Removes the named method, if it exists.
def remove_possible_method(method)
diff --git a/activesupport/lib/active_support/core_ext/name_error.rb b/activesupport/lib/active_support/core_ext/name_error.rb
index 6b447d772b..1bcb6ded3c 100644
--- a/activesupport/lib/active_support/core_ext/name_error.rb
+++ b/activesupport/lib/active_support/core_ext/name_error.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class NameError
# Extract the name of the missing constant from the exception message.
#
diff --git a/activesupport/lib/active_support/core_ext/numeric.rb b/activesupport/lib/active_support/core_ext/numeric.rb
index e10d7708bd..6c407bc1ff 100644
--- a/activesupport/lib/active_support/core_ext/numeric.rb
+++ b/activesupport/lib/active_support/core_ext/numeric.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "numeric/bytes"
require_relative "numeric/time"
require_relative "numeric/inquiry"
diff --git a/activesupport/lib/active_support/core_ext/numeric/bytes.rb b/activesupport/lib/active_support/core_ext/numeric/bytes.rb
index dfbca32474..23e1e39dd8 100644
--- a/activesupport/lib/active_support/core_ext/numeric/bytes.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/bytes.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Numeric
KILOBYTE = 1024
MEGABYTE = KILOBYTE * 1024
diff --git a/activesupport/lib/active_support/core_ext/numeric/conversions.rb b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
index 397e32ee8e..b8cff9aeb9 100644
--- a/activesupport/lib/active_support/core_ext/numeric/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../big_decimal/conversions"
require_relative "../../number_helper"
require_relative "../module/deprecation"
diff --git a/activesupport/lib/active_support/core_ext/numeric/inquiry.rb b/activesupport/lib/active_support/core_ext/numeric/inquiry.rb
index ec79701189..baccf87848 100644
--- a/activesupport/lib/active_support/core_ext/numeric/inquiry.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/inquiry.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
unless 1.respond_to?(:positive?) # TODO: Remove this file when we drop support to ruby < 2.3
class Numeric
# Returns true if the number is positive.
diff --git a/activesupport/lib/active_support/core_ext/numeric/time.rb b/activesupport/lib/active_support/core_ext/numeric/time.rb
index cf002552fb..382a8cd162 100644
--- a/activesupport/lib/active_support/core_ext/numeric/time.rb
+++ b/activesupport/lib/active_support/core_ext/numeric/time.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../duration"
require_relative "../time/calculations"
require_relative "../time/acts_like"
diff --git a/activesupport/lib/active_support/core_ext/object.rb b/activesupport/lib/active_support/core_ext/object.rb
index 993cc6a059..cd350d5c45 100644
--- a/activesupport/lib/active_support/core_ext/object.rb
+++ b/activesupport/lib/active_support/core_ext/object.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "object/acts_like"
require_relative "object/blank"
require_relative "object/duplicable"
diff --git a/activesupport/lib/active_support/core_ext/object/acts_like.rb b/activesupport/lib/active_support/core_ext/object/acts_like.rb
index 3912cc5ace..b856e1ba16 100644
--- a/activesupport/lib/active_support/core_ext/object/acts_like.rb
+++ b/activesupport/lib/active_support/core_ext/object/acts_like.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Object
# A duck-type assistant method. For example, Active Support extends Date
# to define an <tt>acts_like_date?</tt> method, and extends Time to define
diff --git a/activesupport/lib/active_support/core_ext/object/blank.rb b/activesupport/lib/active_support/core_ext/object/blank.rb
index c37c2649d6..fd10e1bf72 100644
--- a/activesupport/lib/active_support/core_ext/object/blank.rb
+++ b/activesupport/lib/active_support/core_ext/object/blank.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../regexp"
class Object
diff --git a/activesupport/lib/active_support/core_ext/object/conversions.rb b/activesupport/lib/active_support/core_ext/object/conversions.rb
index 9d3bdbc528..846e3a4fa7 100644
--- a/activesupport/lib/active_support/core_ext/object/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/object/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "to_param"
require_relative "to_query"
require_relative "../array/conversions"
diff --git a/activesupport/lib/active_support/core_ext/object/deep_dup.rb b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
index d966a29408..ac7537b500 100644
--- a/activesupport/lib/active_support/core_ext/object/deep_dup.rb
+++ b/activesupport/lib/active_support/core_ext/object/deep_dup.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "duplicable"
class Object
diff --git a/activesupport/lib/active_support/core_ext/object/duplicable.rb b/activesupport/lib/active_support/core_ext/object/duplicable.rb
index b028df97ee..0838b1fb70 100644
--- a/activesupport/lib/active_support/core_ext/object/duplicable.rb
+++ b/activesupport/lib/active_support/core_ext/object/duplicable.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
#--
# Most objects are cloneable, but not all. For example you can't dup methods:
#
diff --git a/activesupport/lib/active_support/core_ext/object/inclusion.rb b/activesupport/lib/active_support/core_ext/object/inclusion.rb
index 98bf820d36..525ddcb575 100644
--- a/activesupport/lib/active_support/core_ext/object/inclusion.rb
+++ b/activesupport/lib/active_support/core_ext/object/inclusion.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Object
# Returns true if this object is included in the argument. Argument must be
# any object which responds to +#include?+. Usage:
diff --git a/activesupport/lib/active_support/core_ext/object/instance_variables.rb b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
index 593a7a4940..0a06125210 100644
--- a/activesupport/lib/active_support/core_ext/object/instance_variables.rb
+++ b/activesupport/lib/active_support/core_ext/object/instance_variables.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Object
# Returns a hash with string keys that maps instance variable names without "@" to their
# corresponding values.
diff --git a/activesupport/lib/active_support/core_ext/object/json.rb b/activesupport/lib/active_support/core_ext/object/json.rb
index d54373d5f2..3c8846029f 100644
--- a/activesupport/lib/active_support/core_ext/object/json.rb
+++ b/activesupport/lib/active_support/core_ext/object/json.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
# Hack to load json gem first so we can overwrite its to_json.
require "json"
require "bigdecimal"
diff --git a/activesupport/lib/active_support/core_ext/object/to_param.rb b/activesupport/lib/active_support/core_ext/object/to_param.rb
index d39727ce00..0b172829db 100644
--- a/activesupport/lib/active_support/core_ext/object/to_param.rb
+++ b/activesupport/lib/active_support/core_ext/object/to_param.rb
@@ -1 +1,2 @@
+# frozen_string_literal: true
require_relative "to_query"
diff --git a/activesupport/lib/active_support/core_ext/object/to_query.rb b/activesupport/lib/active_support/core_ext/object/to_query.rb
index a3a3abacbb..f85e0eaa6f 100644
--- a/activesupport/lib/active_support/core_ext/object/to_query.rb
+++ b/activesupport/lib/active_support/core_ext/object/to_query.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "cgi"
class Object
diff --git a/activesupport/lib/active_support/core_ext/object/try.rb b/activesupport/lib/active_support/core_ext/object/try.rb
index b2be619b2d..952fba4541 100644
--- a/activesupport/lib/active_support/core_ext/object/try.rb
+++ b/activesupport/lib/active_support/core_ext/object/try.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "delegate"
module ActiveSupport
diff --git a/activesupport/lib/active_support/core_ext/object/with_options.rb b/activesupport/lib/active_support/core_ext/object/with_options.rb
index 68a8da25ff..22a0034d7d 100644
--- a/activesupport/lib/active_support/core_ext/object/with_options.rb
+++ b/activesupport/lib/active_support/core_ext/object/with_options.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../option_merger"
class Object
diff --git a/activesupport/lib/active_support/core_ext/range.rb b/activesupport/lib/active_support/core_ext/range.rb
index 3e17780b76..db4c63380b 100644
--- a/activesupport/lib/active_support/core_ext/range.rb
+++ b/activesupport/lib/active_support/core_ext/range.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "range/conversions"
require_relative "range/include_range"
require_relative "range/overlaps"
diff --git a/activesupport/lib/active_support/core_ext/range/conversions.rb b/activesupport/lib/active_support/core_ext/range/conversions.rb
index 69ea046cb6..5038a15cdf 100644
--- a/activesupport/lib/active_support/core_ext/range/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/range/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module ActiveSupport::RangeWithFormat
RANGE_FORMATS = {
db: Proc.new { |start, stop| "BETWEEN '#{start.to_s(:db)}' AND '#{stop.to_s(:db)}'" }
diff --git a/activesupport/lib/active_support/core_ext/range/each.rb b/activesupport/lib/active_support/core_ext/range/each.rb
index dc6dad5ced..aeea8c867b 100644
--- a/activesupport/lib/active_support/core_ext/range/each.rb
+++ b/activesupport/lib/active_support/core_ext/range/each.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module ActiveSupport
module EachTimeWithZone #:nodoc:
def each(&block)
diff --git a/activesupport/lib/active_support/core_ext/range/include_range.rb b/activesupport/lib/active_support/core_ext/range/include_range.rb
index c69e1e3fb9..d307750a23 100644
--- a/activesupport/lib/active_support/core_ext/range/include_range.rb
+++ b/activesupport/lib/active_support/core_ext/range/include_range.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
module ActiveSupport
module IncludeWithRange #:nodoc:
# Extends the default Range#include? to support range comparisons.
diff --git a/activesupport/lib/active_support/core_ext/range/overlaps.rb b/activesupport/lib/active_support/core_ext/range/overlaps.rb
index 603657c180..ecdfbd803b 100644
--- a/activesupport/lib/active_support/core_ext/range/overlaps.rb
+++ b/activesupport/lib/active_support/core_ext/range/overlaps.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Range
# Compare two ranges and see if they overlap each other
# (1..5).overlaps?(4..6) # => true
diff --git a/activesupport/lib/active_support/core_ext/regexp.rb b/activesupport/lib/active_support/core_ext/regexp.rb
index d77d01bf42..23b337ba67 100644
--- a/activesupport/lib/active_support/core_ext/regexp.rb
+++ b/activesupport/lib/active_support/core_ext/regexp.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class Regexp #:nodoc:
def multiline?
options & MULTILINE == MULTILINE
diff --git a/activesupport/lib/active_support/core_ext/securerandom.rb b/activesupport/lib/active_support/core_ext/securerandom.rb
index a57685bea1..033ac356bd 100644
--- a/activesupport/lib/active_support/core_ext/securerandom.rb
+++ b/activesupport/lib/active_support/core_ext/securerandom.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "securerandom"
module SecureRandom
diff --git a/activesupport/lib/active_support/core_ext/string.rb b/activesupport/lib/active_support/core_ext/string.rb
index b16b35144e..cefd82fa20 100644
--- a/activesupport/lib/active_support/core_ext/string.rb
+++ b/activesupport/lib/active_support/core_ext/string.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "string/conversions"
require_relative "string/filters"
require_relative "string/multibyte"
diff --git a/activesupport/lib/active_support/core_ext/string/access.rb b/activesupport/lib/active_support/core_ext/string/access.rb
index 6133826f37..11f4bf8052 100644
--- a/activesupport/lib/active_support/core_ext/string/access.rb
+++ b/activesupport/lib/active_support/core_ext/string/access.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# If you pass a single integer, returns a substring of one character at that
# position. The first character of the string is at position 0, the next at
diff --git a/activesupport/lib/active_support/core_ext/string/behavior.rb b/activesupport/lib/active_support/core_ext/string/behavior.rb
index 710f1f4670..e63888991d 100644
--- a/activesupport/lib/active_support/core_ext/string/behavior.rb
+++ b/activesupport/lib/active_support/core_ext/string/behavior.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# Enables more predictable duck-typing on String-like classes. See <tt>Object#acts_like?</tt>.
def acts_like_string?
diff --git a/activesupport/lib/active_support/core_ext/string/conversions.rb b/activesupport/lib/active_support/core_ext/string/conversions.rb
index 383d93e2cd..a0b771f41e 100644
--- a/activesupport/lib/active_support/core_ext/string/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/string/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "date"
require_relative "../time/calculations"
diff --git a/activesupport/lib/active_support/core_ext/string/exclude.rb b/activesupport/lib/active_support/core_ext/string/exclude.rb
index 0ac684f6ee..2893a6eeed 100644
--- a/activesupport/lib/active_support/core_ext/string/exclude.rb
+++ b/activesupport/lib/active_support/core_ext/string/exclude.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# The inverse of <tt>String#include?</tt>. Returns true if the string
# does not include the other string.
diff --git a/activesupport/lib/active_support/core_ext/string/filters.rb b/activesupport/lib/active_support/core_ext/string/filters.rb
index a9ec2eb842..e05cf024f6 100644
--- a/activesupport/lib/active_support/core_ext/string/filters.rb
+++ b/activesupport/lib/active_support/core_ext/string/filters.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# Returns the string, first removing all whitespace on both ends of
# the string, and then changing remaining consecutive whitespace
diff --git a/activesupport/lib/active_support/core_ext/string/indent.rb b/activesupport/lib/active_support/core_ext/string/indent.rb
index d7b58301d3..a38198a8e6 100644
--- a/activesupport/lib/active_support/core_ext/string/indent.rb
+++ b/activesupport/lib/active_support/core_ext/string/indent.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# Same as +indent+, except it indents the receiver in-place.
#
diff --git a/activesupport/lib/active_support/core_ext/string/inflections.rb b/activesupport/lib/active_support/core_ext/string/inflections.rb
index 70c732ca44..78caa0832f 100644
--- a/activesupport/lib/active_support/core_ext/string/inflections.rb
+++ b/activesupport/lib/active_support/core_ext/string/inflections.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../inflector/methods"
require_relative "../../inflector/transliterate"
diff --git a/activesupport/lib/active_support/core_ext/string/inquiry.rb b/activesupport/lib/active_support/core_ext/string/inquiry.rb
index dfa78b2ff8..0fe532fb8c 100644
--- a/activesupport/lib/active_support/core_ext/string/inquiry.rb
+++ b/activesupport/lib/active_support/core_ext/string/inquiry.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../string_inquirer"
class String
diff --git a/activesupport/lib/active_support/core_ext/string/multibyte.rb b/activesupport/lib/active_support/core_ext/string/multibyte.rb
index 56a1cede1a..403e4be011 100644
--- a/activesupport/lib/active_support/core_ext/string/multibyte.rb
+++ b/activesupport/lib/active_support/core_ext/string/multibyte.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../multibyte"
class String
diff --git a/activesupport/lib/active_support/core_ext/string/output_safety.rb b/activesupport/lib/active_support/core_ext/string/output_safety.rb
index 607870237b..4bfc582eb5 100644
--- a/activesupport/lib/active_support/core_ext/string/output_safety.rb
+++ b/activesupport/lib/active_support/core_ext/string/output_safety.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "erb"
require_relative "../kernel/singleton_class"
require_relative "../../multibyte/unicode"
diff --git a/activesupport/lib/active_support/core_ext/string/starts_ends_with.rb b/activesupport/lib/active_support/core_ext/string/starts_ends_with.rb
index 641acf62d0..f072fbf7d7 100644
--- a/activesupport/lib/active_support/core_ext/string/starts_ends_with.rb
+++ b/activesupport/lib/active_support/core_ext/string/starts_ends_with.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
alias_method :starts_with?, :start_with?
alias_method :ends_with?, :end_with?
diff --git a/activesupport/lib/active_support/core_ext/string/strip.rb b/activesupport/lib/active_support/core_ext/string/strip.rb
index bb62e6c0ba..979b6bd767 100644
--- a/activesupport/lib/active_support/core_ext/string/strip.rb
+++ b/activesupport/lib/active_support/core_ext/string/strip.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
class String
# Strips indentation in heredocs.
#
diff --git a/activesupport/lib/active_support/core_ext/string/zones.rb b/activesupport/lib/active_support/core_ext/string/zones.rb
index d8d22a6799..a911fdab3c 100644
--- a/activesupport/lib/active_support/core_ext/string/zones.rb
+++ b/activesupport/lib/active_support/core_ext/string/zones.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "conversions"
require_relative "../time/zones"
diff --git a/activesupport/lib/active_support/core_ext/time.rb b/activesupport/lib/active_support/core_ext/time.rb
index 19d4d91dac..cfa9b82b06 100644
--- a/activesupport/lib/active_support/core_ext/time.rb
+++ b/activesupport/lib/active_support/core_ext/time.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "time/acts_like"
require_relative "time/calculations"
require_relative "time/compatibility"
diff --git a/activesupport/lib/active_support/core_ext/time/acts_like.rb b/activesupport/lib/active_support/core_ext/time/acts_like.rb
index 08756a2dae..776456506c 100644
--- a/activesupport/lib/active_support/core_ext/time/acts_like.rb
+++ b/activesupport/lib/active_support/core_ext/time/acts_like.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../object/acts_like"
class Time
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 9ba6bf8fa1..4cfb702674 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../duration"
require_relative "conversions"
require_relative "../../time_with_zone"
diff --git a/activesupport/lib/active_support/core_ext/time/compatibility.rb b/activesupport/lib/active_support/core_ext/time/compatibility.rb
index a554e71b74..ce69e5f478 100644
--- a/activesupport/lib/active_support/core_ext/time/compatibility.rb
+++ b/activesupport/lib/active_support/core_ext/time/compatibility.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../date_and_time/compatibility"
require_relative "../module/remove_method"
diff --git a/activesupport/lib/active_support/core_ext/time/conversions.rb b/activesupport/lib/active_support/core_ext/time/conversions.rb
index 0dbce99ccb..5cb0f9c980 100644
--- a/activesupport/lib/active_support/core_ext/time/conversions.rb
+++ b/activesupport/lib/active_support/core_ext/time/conversions.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../inflector/methods"
require_relative "../../values/time_zone"
diff --git a/activesupport/lib/active_support/core_ext/time/zones.rb b/activesupport/lib/active_support/core_ext/time/zones.rb
index ba8b5b73f8..3794eab3f5 100644
--- a/activesupport/lib/active_support/core_ext/time/zones.rb
+++ b/activesupport/lib/active_support/core_ext/time/zones.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require_relative "../../time_with_zone"
require_relative "acts_like"
require_relative "../date_and_time/zones"
diff --git a/activesupport/lib/active_support/core_ext/uri.rb b/activesupport/lib/active_support/core_ext/uri.rb
index 342a5fcd52..f93dbdf2cd 100644
--- a/activesupport/lib/active_support/core_ext/uri.rb
+++ b/activesupport/lib/active_support/core_ext/uri.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "uri"
str = "\xE6\x97\xA5\xE6\x9C\xAC\xE8\xAA\x9E" # Ni-ho-nn-go in UTF-8, means Japanese.
parser = URI::Parser.new