| @@ 11-32 (lines=22) @@ | ||
| 8 | use Zicht\Itertools\conversions; |
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| 9 | use Zicht\Itertools\lib\DifferenceIterator; |
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| 10 | ||
| 11 | trait DifferenceTrait |
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| 12 | { |
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| 13 | /** |
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| 14 | * Returns a DifferenceIterator containing elements in $this but not in $iterable |
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| 15 | * |
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| 16 | * @param array|string|\Iterator $iterable |
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| 17 | * @param null|string|\Closure $strategy Optional |
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| 18 | * @return null|DifferenceIterator |
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| 19 | */ |
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| 20 | public function difference($iterable, $strategy = null) |
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| 21 | { |
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| 22 | if ($this instanceof \Iterator) { |
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| 23 | return new DifferenceIterator( |
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| 24 | $this, |
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| 25 | conversions\mixed_to_iterator($iterable), |
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| 26 | conversions\mixed_to_value_getter($strategy) |
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| 27 | ); |
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| 28 | } |
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| 29 | ||
| 30 | return null; |
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| 31 | } |
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| 32 | } |
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| 33 | ||
| @@ 11-32 (lines=22) @@ | ||
| 8 | use Zicht\Itertools\conversions; |
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| 9 | use Zicht\Itertools\lib\IntersectionIterator; |
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| 10 | ||
| 11 | trait IntersectionTrait |
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| 12 | { |
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| 13 | /** |
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| 14 | * Returns an IntersectionIterator containing elements in $this that are also in $iterable |
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| 15 | * |
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| 16 | * @param array|string|\Iterator $iterable |
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| 17 | * @param null|string|\Closure $strategy Optional |
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| 18 | * @return null|IntersectionIterator |
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| 19 | */ |
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| 20 | public function intersection($iterable, $strategy = null) |
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| 21 | { |
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| 22 | if ($this instanceof \Iterator) { |
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| 23 | return new IntersectionIterator( |
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| 24 | $this, |
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| 25 | conversions\mixed_to_iterator($iterable), |
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| 26 | conversions\mixed_to_value_getter($strategy) |
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| 27 | ); |
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| 28 | } |
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| 29 | ||
| 30 | return null; |
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| 31 | } |
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| 32 | } |
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| 33 | ||