gistfile1.rb

    def process_call(line, receiver, name, arguments)
      # if a form is recognized, the transform calls eg process_special_send() which
      # creates and returns a node, and process_transforms returns true to abort normal
      # processing. Normal processing creates a Send or SendWithArguments node.
      return if process_transforms(line, receiver, name, arguments)

      if arguments
        AST::SendWithArguments.new line, receiver, name, arguments
      else
        AST::Send.new line, receiver, name
      end
    end