# File lib/main/program/instance_methods.rb, line 102
      def stdin= io
        unless(defined?(@stdin) and (@stdin == io))
          @stdin =
            if io.respond_to?('read')
              io
            else
              fd = open(io.to_s, 'r+')
              @finalizers.push(lambda{ fd.close })
              fd
            end
          begin
            STDIN.reopen(@stdin)
          rescue
            $stdin = @stdin
            ::Object.send(:remove_const, 'STDIN')
            ::Object.send(:const_set, 'STDIN', @stdin)
          end
        end
      end