# File lib/brakeman/processors/erubis_template_processor.rb, line 63
  def process_attrasgn exp
    if exp.target.node_type == :ivar and exp.target.value == :@output_buffer
      if append_method?(exp.method)
        exp.first_arg = process(exp.first_arg)
        arg = normalize_output(exp.first_arg)

        if arg.node_type == :str
          ignore
        elsif safe_append_method?(exp.method)
          add_output arg
        else
          add_escaped_output arg
        end
      else
        super
      end
    else
      super
    end
  end