italolelis /
collections
| @@ 5-62 (lines=58) @@ | ||
| 2 | ||
| 3 | namespace Collections\Iterator; |
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| 4 | ||
| 5 | class LazySkipIterator implements \Iterator |
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| 6 | { |
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| 7 | /** |
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| 8 | * @var \Iterator |
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| 9 | */ |
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| 10 | private $it; |
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| 11 | ||
| 12 | /** |
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| 13 | * @var int |
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| 14 | */ |
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| 15 | private $n; |
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| 16 | ||
| 17 | public function __construct($it, $n) |
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| 18 | { |
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| 19 | $this->it = $it; |
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| 20 | $this->n = $n; |
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| 21 | while ($n > 0 && $it->valid()) { |
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| 22 | $it->next(); |
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| 23 | --$n; |
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| 24 | } |
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| 25 | } |
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| 26 | ||
| 27 | public function __clone() |
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| 28 | { |
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| 29 | $this->it = clone $this->it; |
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| 30 | } |
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| 31 | ||
| 32 | public function rewind() |
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| 33 | { |
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| 34 | $it = $this->it; |
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| 35 | $n = $this->n; |
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| 36 | $it->rewind(); |
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| 37 | while ($n > 0 && $it->valid()) { |
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| 38 | $it->next(); |
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| 39 | --$n; |
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| 40 | } |
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| 41 | } |
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| 42 | ||
| 43 | public function valid() |
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| 44 | { |
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| 45 | return $this->it->valid(); |
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| 46 | } |
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| 47 | ||
| 48 | public function next() |
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| 49 | { |
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| 50 | $this->it->next(); |
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| 51 | } |
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| 52 | ||
| 53 | public function key() |
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| 54 | { |
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| 55 | return $this->it->key(); |
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| 56 | } |
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| 57 | ||
| 58 | public function current() |
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| 59 | { |
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| 60 | return $this->it->current(); |
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| 61 | } |
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| 62 | } |
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| 63 | ||
| @@ 7-64 (lines=58) @@ | ||
| 4 | ||
| 5 | use Collections\KeyedIterator; |
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| 6 | ||
| 7 | class LazySkipKeyedIterator implements KeyedIterator |
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| 8 | { |
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| 9 | /** |
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| 10 | * @var KeyedIterator |
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| 11 | */ |
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| 12 | private $it; |
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| 13 | ||
| 14 | /** |
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| 15 | * @var int |
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| 16 | */ |
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| 17 | private $n; |
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| 18 | ||
| 19 | public function __construct($it, $n) |
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| 20 | { |
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| 21 | $this->it = $it; |
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| 22 | $this->n = $n; |
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| 23 | while ($n > 0 && $it->valid()) { |
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| 24 | $it->next(); |
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| 25 | --$n; |
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| 26 | } |
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| 27 | } |
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| 28 | ||
| 29 | public function __clone() |
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| 30 | { |
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| 31 | $this->it = clone $this->it; |
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| 32 | } |
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| 33 | ||
| 34 | public function rewind() |
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| 35 | { |
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| 36 | $it = $this->it; |
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| 37 | $n = $this->n; |
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| 38 | $it->rewind(); |
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| 39 | while ($n > 0 && $it->valid()) { |
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| 40 | $it->next(); |
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| 41 | --$n; |
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| 42 | } |
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| 43 | } |
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| 44 | ||
| 45 | public function valid() |
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| 46 | { |
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| 47 | return $this->it->valid(); |
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| 48 | } |
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| 49 | ||
| 50 | public function next() |
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| 51 | { |
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| 52 | $this->it->next(); |
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| 53 | } |
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| 54 | ||
| 55 | public function key() |
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| 56 | { |
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| 57 | return $this->it->key(); |
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| 58 | } |
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| 59 | ||
| 60 | public function current() |
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| 61 | { |
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| 62 | return $this->it->current(); |
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| 63 | } |
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| 64 | } |
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| 65 | ||
