File: cloneable.rb

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module Rake
  # ##########################################################################
  # Mixin for creating easily cloned objects.
  #
  module Cloneable
    # The hook that invoked by 'clone' and 'dup' methods.
    def initialize_copy(source)
      super
      source.instance_variables.each do |var|
        src_value  = source.instance_variable_get(var)
        value = src_value.clone rescue src_value
        instance_variable_set(var, value)
      end
    end
  end
end