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in lib/grit/git-ruby/internal/file_window.rb [29:53]

• 24 lines of code
• 7 McCabe index (conditional complexity)

        def [](*idx)
          idx = idx[0] if idx.length == 1
          case idx
          when Range
            offset = idx.first
            len = idx.last - idx.first + idx.exclude_end? ? 0 : 1
          when Integer
            offset = idx
            len = nil
          when Array
            offset, len = idx
          else
            raise RuntimeError, "invalid index param: #{idx.class}"
          end
          if @offset != offset
            @file.seek(offset + @global_offset)
          end
          @offset = offset + len ? len : 1
          if not len
            @file.read(1).getord(0)
          else
            @file.read(len)
          end
        end