Method: Module#extended

Defined in:
lib/source/ruby.rb

#extended(object) ⇒ Object

call-seq:

extended(extended_obj)

Callback invoked whenever the receiver is used to extend an object’s singleton class. Default callback is empty; override the method definition in your modules to activate.

module Mod
  def self.extended(obj)
    puts "#{obj} was extended with #{self}"
  end
end

class Thing
  def to_s
    "My object"
  end
end

Thing.new.extend(Mod)

produces:

My object was extended with Mod



951
952
 
# File 'lib/source/ruby.rb', line 951

def extended(object)
end