each_top_level_statement

# File lib/irb/ruby-lex.rb, line 226
  def each_top_level_statement
    initialize_input
    catch(:TERM_INPUT) do
      loop do
        begin
          @continue = false
          prompt
          unless l = lex
            throw :TERM_INPUT if @line == ''
          else
            @line.concat l
            if @ltype or @continue or @indent > 0
              next
            end
          end
          if @line != "\n"
            @line.force_encoding(@io.encoding)
            yield @line, @exp_line_no
          end
          break unless l
          @line = ''
          @exp_line_no = @line_no

          @indent = 0
          @indent_stack = []
          prompt
        rescue TerminateLineInput
          initialize_input
          prompt
          get_readed
        end
      end
    end
  end