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name_error.rb

module DidYouMean
  module Correctable
    if Exception.method_defined?(:detailed_message)
      # just for compatibility
      def original_message
        # we cannot use alias here because
        to_s
      end

def detailed_message(highlight: true, did_you_mean: true, **)
        msg = super.dup

return msg unless did_you_mean

suggestion = DidYouMean.formatter.message_for(corrections)

if highlight
          suggestion = suggestion.gsub(/.+/) { "\e[1m" + $& + "\e[m" }
        end

msg << suggestion
        msg
      rescue
        super
      end
    else
      SKIP_TO_S_FOR_SUPER_LOOKUP = true
      private_constant :SKIP_TO_S_FOR_SUPER_LOOKUP

def original_message
        meth = method(:to_s)
        while meth.owner.const_defined?(:SKIP_TO_S_FOR_SUPER_LOOKUP)
          meth = meth.super_method
        end
        meth.call
      end

def to_s
        msg = super.dup
        suggestion = DidYouMean.formatter.message_for(corrections)

msg << suggestion if !msg.include?(suggestion)
        msg
      rescue
        super
      end
    end

def corrections
      @corrections ||= spell_checker.corrections
    end

def spell_checker
      DidYouMean.spell_checkers[self.class.to_s].new(self)
    end
  end
end

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