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<?php |
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declare(strict_types=1); |
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namespace loophp\collection\Operation; |
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use Closure; |
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use Generator; |
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use loophp\collection\Contract\Operation\Splitable; |
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use loophp\collection\Utils\CallbacksArrayReducer; |
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/** |
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* @immutable |
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* |
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* @template TKey |
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* @template T |
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*/ |
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final class Split extends AbstractOperation |
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{ |
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/** |
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* @return Closure(int): Closure((callable(T, TKey): bool)...): Closure(iterable<TKey, T>): Generator<int, list<T>> |
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*/ |
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public function __invoke(): Closure |
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{ |
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return |
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/** |
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* @return Closure((callable(T, TKey): bool)...): Closure(iterable<TKey, T>): Generator<int, list<T>> |
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*/ |
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static fn (int $type = Splitable::BEFORE): Closure => |
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/** |
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* @param callable(T, TKey): bool ...$callbacks |
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* |
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* @return Closure(iterable<TKey, T>): Generator<int, list<T>> |
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*/ |
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static fn (callable ...$callbacks): Closure => |
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/** |
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* @param iterable<TKey, T> $iterable |
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* |
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* @return Generator<int, list<T>> |
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*/ |
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static function (iterable $iterable) use ($type, $callbacks): Generator { |
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$carry = []; |
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$callback = CallbacksArrayReducer::or()($callbacks); |
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foreach ($iterable as $key => $current) { |
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$callbackReturn = $callback($current, $key, $iterable); |
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if (Splitable::AFTER === $type) { |
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2 |
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$carry[] = $current; |
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} |
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if ($callbackReturn && (Splitable::REMOVE === $type)) { |
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yield $carry; |
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$carry = []; |
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continue; |
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} |
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if ($callbackReturn && ([] !== $carry)) { |
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yield $carry; |
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$carry = []; |
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} |
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if (Splitable::AFTER !== $type) { |
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$carry[] = $current; |
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} |
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} |
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if ([] !== $carry) { |
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yield $carry; |
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} |
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}; |
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} |
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} |
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loophp /
collection
