# File lib/parser/lexer/literal.rb, line 239
    def clear_buffer
      @buffer = ''

      # Prime the buffer with lexer encoding; otherwise,
      # concatenation will produce varying results.
      if defined?(Encoding)
        @buffer.force_encoding(@lexer.source_buffer.source.encoding)
      end

      @buffer_s = nil
      @buffer_e = nil
    end