/usr/lib/ruby/vendor_ruby/active_support/rails.rb is in ruby-activesupport 2:4.2.10-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | # This is private interface.
#
# Rails components cherry pick from Active Support as needed, but there are a
# few features that are used for sure some way or another and it is not worth
# to put individual requires absolutely everywhere. Think blank? for example.
#
# This file is loaded by every Rails component except Active Support itself,
# but it does not belong to the Rails public interface. It is internal to
# Rails and can change anytime.
# Defines Object#blank? and Object#present?.
require 'active_support/core_ext/object/blank'
# Rails own autoload, eager_load, etc.
require 'active_support/dependencies/autoload'
# Support for ClassMethods and the included macro.
require 'active_support/concern'
# Defines Class#class_attribute.
require 'active_support/core_ext/class/attribute'
# Defines Module#delegate.
require 'active_support/core_ext/module/delegation'
# Defines ActiveSupport::Deprecation.
require 'active_support/deprecation'
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