()
| 89 | } |
| 90 | |
| 91 | func (it *Iterator) Next() bool { |
| 92 | if !it.valid { |
| 93 | return false |
| 94 | } |
| 95 | |
| 96 | if it.options.Reverse { |
| 97 | it.valid = it.iter.Prev() |
| 98 | } else { |
| 99 | it.valid = it.iter.Next() |
| 100 | } |
| 101 | |
| 102 | if it.valid { |
| 103 | it.currentItem = it.iter.Item() |
| 104 | } else { |
| 105 | it.currentItem = nil |
| 106 | } |
| 107 | |
| 108 | return it.valid |
| 109 | } |
| 110 | |
| 111 | func (it *Iterator) Valid() bool { |
| 112 | return it.valid |