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-rw-r--r--activesupport/lib/active_support/core_ext/class/attribute_accessors.rb8
1 files changed, 8 insertions, 0 deletions
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 5cb528cfe9..4f8866ce9d 100644
--- a/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb
+++ b/activesupport/lib/active_support/core_ext/class/attribute_accessors.rb
@@ -15,6 +15,14 @@ require 'active_support/core_ext/array/extract_options'
# Person.hair_colors # => [:brown, :black, :blonde, :red]
# Person.new.hair_colors # => [:brown, :black, :blonde, :red]
#
+# class Female < Person
+# end
+#
+# Female.hair_colors << :pink
+# Female.hair_colors # => [:brown, :black, :blonde, :red, :pink]
+# Female.new.hair_colors # => [:brown, :black, :blonde, :red, :pink]
+# Person.hair_colors # => [:brown, :black, :blonde, :red, :pink]
+#
# To opt out of the instance writer method, pass :instance_writer => false.
# To opt out of the instance reader method, pass :instance_reader => false.
# To opt out of both instance methods, pass :instance_accessor => false.