| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949195019511952195319541955195619571958195919601961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994 |
- <?php
- namespace Illuminate\Support;
- use ArrayIterator;
- use Closure;
- use DateInterval;
- use DateTimeImmutable;
- use DateTimeInterface;
- use Generator;
- use Illuminate\Contracts\Support\CanBeEscapedWhenCastToString;
- use Illuminate\Support\Traits\EnumeratesValues;
- use Illuminate\Support\Traits\Macroable;
- use InvalidArgumentException;
- use IteratorAggregate;
- use stdClass;
- use Traversable;
- /**
- * @template TKey of array-key
- *
- * @template-covariant TValue
- *
- * @implements \Illuminate\Support\Enumerable<TKey, TValue>
- */
- class LazyCollection implements CanBeEscapedWhenCastToString, Enumerable
- {
- /**
- * @use \Illuminate\Support\Traits\EnumeratesValues<TKey, TValue>
- */
- use EnumeratesValues, Macroable;
- /**
- * The source from which to generate items.
- *
- * @var (Closure(): \Generator<TKey, TValue, mixed, void>)|static|array<TKey, TValue>
- */
- public $source;
- /**
- * Create a new lazy collection instance.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue>|(Closure(): \Generator<TKey, TValue, mixed, void>)|self<TKey, TValue>|array<TKey, TValue>|null $source
- */
- public function __construct($source = null)
- {
- if ($source instanceof Closure || $source instanceof self) {
- $this->source = $source;
- } elseif (is_null($source)) {
- $this->source = static::empty();
- } elseif ($source instanceof Generator) {
- throw new InvalidArgumentException(
- 'Generators should not be passed directly to LazyCollection. Instead, pass a generator function.'
- );
- } else {
- $this->source = $this->getArrayableItems($source);
- }
- }
- /**
- * Create a new collection instance if the value isn't one already.
- *
- * @template TMakeKey of array-key
- * @template TMakeValue
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TMakeKey, TMakeValue>|iterable<TMakeKey, TMakeValue>|(Closure(): \Generator<TMakeKey, TMakeValue, mixed, void>)|self<TMakeKey, TMakeValue>|array<TMakeKey, TMakeValue>|null $items
- * @return static<TMakeKey, TMakeValue>
- */
- public static function make($items = [])
- {
- return new static($items);
- }
- /**
- * Create a collection with the given range.
- *
- * @param int $from
- * @param int $to
- * @param int $step
- * @return static<int, int>
- */
- public static function range($from, $to, $step = 1)
- {
- if ($step == 0) {
- throw new InvalidArgumentException('Step value cannot be zero.');
- }
- return new static(function () use ($from, $to, $step) {
- if ($from <= $to) {
- for (; $from <= $to; $from += abs($step)) {
- yield $from;
- }
- } else {
- for (; $from >= $to; $from -= abs($step)) {
- yield $from;
- }
- }
- });
- }
- /**
- * Get all items in the enumerable.
- *
- * @return array<TKey, TValue>
- */
- public function all()
- {
- if (is_array($this->source)) {
- return $this->source;
- }
- return iterator_to_array($this->getIterator());
- }
- /**
- * Eager load all items into a new lazy collection backed by an array.
- *
- * @return static<TKey, TValue>
- */
- public function eager()
- {
- return new static($this->all());
- }
- /**
- * Cache values as they're enumerated.
- *
- * @return static<TKey, TValue>
- */
- public function remember()
- {
- $iterator = $this->getIterator();
- $iteratorIndex = 0;
- $cache = [];
- return new static(function () use ($iterator, &$iteratorIndex, &$cache) {
- for ($index = 0; true; $index++) {
- if (array_key_exists($index, $cache)) {
- yield $cache[$index][0] => $cache[$index][1];
- continue;
- }
- if ($iteratorIndex < $index) {
- $iterator->next();
- $iteratorIndex++;
- }
- if (! $iterator->valid()) {
- break;
- }
- $cache[$index] = [$iterator->key(), $iterator->current()];
- yield $cache[$index][0] => $cache[$index][1];
- }
- });
- }
- /**
- * Get the median of a given key.
- *
- * @param string|array<array-key, string>|null $key
- * @return float|int|null
- */
- public function median($key = null)
- {
- return $this->collect()->median($key);
- }
- /**
- * Get the mode of a given key.
- *
- * @param string|array<string>|null $key
- * @return array<int, float|int>|null
- */
- public function mode($key = null)
- {
- return $this->collect()->mode($key);
- }
- /**
- * Collapse the collection of items into a single array.
- *
- * @return static<int, mixed>
- */
- public function collapse()
- {
- return new static(function () {
- foreach ($this as $values) {
- if (is_array($values) || $values instanceof Enumerable) {
- foreach ($values as $value) {
- yield $value;
- }
- }
- }
- });
- }
- /**
- * Collapse the collection of items into a single array while preserving its keys.
- *
- * @return static<mixed, mixed>
- */
- public function collapseWithKeys()
- {
- return new static(function () {
- foreach ($this as $values) {
- if (is_array($values) || $values instanceof Enumerable) {
- foreach ($values as $key => $value) {
- yield $key => $value;
- }
- }
- }
- });
- }
- /**
- * Determine if an item exists in the enumerable.
- *
- * @param (callable(TValue, TKey): bool)|TValue|string $key
- * @param mixed $operator
- * @param mixed $value
- * @return bool
- */
- public function contains($key, $operator = null, $value = null)
- {
- if (func_num_args() === 1 && $this->useAsCallable($key)) {
- $placeholder = new stdClass;
- /** @var callable $key */
- return $this->first($key, $placeholder) !== $placeholder;
- }
- if (func_num_args() === 1) {
- $needle = $key;
- foreach ($this as $value) {
- if ($value == $needle) {
- return true;
- }
- }
- return false;
- }
- return $this->contains($this->operatorForWhere(...func_get_args()));
- }
- /**
- * Determine if an item exists, using strict comparison.
- *
- * @param (callable(TValue): bool)|TValue|array-key $key
- * @param TValue|null $value
- * @return bool
- */
- public function containsStrict($key, $value = null)
- {
- if (func_num_args() === 2) {
- return $this->contains(fn ($item) => data_get($item, $key) === $value);
- }
- if ($this->useAsCallable($key)) {
- return ! is_null($this->first($key));
- }
- foreach ($this as $item) {
- if ($item === $key) {
- return true;
- }
- }
- return false;
- }
- /**
- * Determine if an item is not contained in the enumerable.
- *
- * @param mixed $key
- * @param mixed $operator
- * @param mixed $value
- * @return bool
- */
- public function doesntContain($key, $operator = null, $value = null)
- {
- return ! $this->contains(...func_get_args());
- }
- /**
- * Determine if an item is not contained in the enumerable, using strict comparison.
- *
- * @param mixed $key
- * @param mixed $operator
- * @param mixed $value
- * @return bool
- */
- public function doesntContainStrict($key, $operator = null, $value = null)
- {
- return ! $this->containsStrict(...func_get_args());
- }
- /**
- * Cross join the given iterables, returning all possible permutations.
- *
- * @template TCrossJoinKey
- * @template TCrossJoinValue
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TCrossJoinKey, TCrossJoinValue>|iterable<TCrossJoinKey, TCrossJoinValue> ...$arrays
- * @return static<int, array<int, TValue|TCrossJoinValue>>
- */
- public function crossJoin(...$arrays)
- {
- return $this->passthru('crossJoin', func_get_args());
- }
- /**
- * Count the number of items in the collection by a field or using a callback.
- *
- * @param (callable(TValue, TKey): array-key|\UnitEnum)|string|null $countBy
- * @return static<array-key, int>
- */
- public function countBy($countBy = null)
- {
- $countBy = is_null($countBy)
- ? $this->identity()
- : $this->valueRetriever($countBy);
- return new static(function () use ($countBy) {
- $counts = [];
- foreach ($this as $key => $value) {
- $group = enum_value($countBy($value, $key));
- if (empty($counts[$group])) {
- $counts[$group] = 0;
- }
- $counts[$group]++;
- }
- yield from $counts;
- });
- }
- /**
- * Get the items that are not present in the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items
- * @return static<TKey, TValue>
- */
- public function diff($items)
- {
- return $this->passthru('diff', func_get_args());
- }
- /**
- * Get the items that are not present in the given items, using the callback.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items
- * @param callable(TValue, TValue): int $callback
- * @return static
- */
- public function diffUsing($items, callable $callback)
- {
- return $this->passthru('diffUsing', func_get_args());
- }
- /**
- * Get the items whose keys and values are not present in the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function diffAssoc($items)
- {
- return $this->passthru('diffAssoc', func_get_args());
- }
- /**
- * Get the items whose keys and values are not present in the given items, using the callback.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @param callable(TKey, TKey): int $callback
- * @return static
- */
- public function diffAssocUsing($items, callable $callback)
- {
- return $this->passthru('diffAssocUsing', func_get_args());
- }
- /**
- * Get the items whose keys are not present in the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, mixed>|iterable<TKey, mixed> $items
- * @return static
- */
- public function diffKeys($items)
- {
- return $this->passthru('diffKeys', func_get_args());
- }
- /**
- * Get the items whose keys are not present in the given items, using the callback.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, mixed>|iterable<TKey, mixed> $items
- * @param callable(TKey, TKey): int $callback
- * @return static
- */
- public function diffKeysUsing($items, callable $callback)
- {
- return $this->passthru('diffKeysUsing', func_get_args());
- }
- /**
- * Retrieve duplicate items.
- *
- * @template TMapValue
- *
- * @param (callable(TValue): TMapValue)|string|null $callback
- * @param bool $strict
- * @return static
- */
- public function duplicates($callback = null, $strict = false)
- {
- return $this->passthru('duplicates', func_get_args());
- }
- /**
- * Retrieve duplicate items using strict comparison.
- *
- * @template TMapValue
- *
- * @param (callable(TValue): TMapValue)|string|null $callback
- * @return static
- */
- public function duplicatesStrict($callback = null)
- {
- return $this->passthru('duplicatesStrict', func_get_args());
- }
- /**
- * Get all items except for those with the specified keys.
- *
- * @param \Illuminate\Support\Enumerable<array-key, TKey>|array<array-key, TKey> $keys
- * @return static
- */
- public function except($keys)
- {
- return $this->passthru('except', func_get_args());
- }
- /**
- * Run a filter over each of the items.
- *
- * @param (callable(TValue, TKey): bool)|null $callback
- * @return static
- */
- public function filter(?callable $callback = null)
- {
- if (is_null($callback)) {
- $callback = fn ($value) => (bool) $value;
- }
- return new static(function () use ($callback) {
- foreach ($this as $key => $value) {
- if ($callback($value, $key)) {
- yield $key => $value;
- }
- }
- });
- }
- /**
- * Get the first item from the enumerable passing the given truth test.
- *
- * @template TFirstDefault
- *
- * @param (callable(TValue): bool)|null $callback
- * @param TFirstDefault|(\Closure(): TFirstDefault) $default
- * @return TValue|TFirstDefault
- */
- public function first(?callable $callback = null, $default = null)
- {
- $iterator = $this->getIterator();
- if (is_null($callback)) {
- if (! $iterator->valid()) {
- return value($default);
- }
- return $iterator->current();
- }
- foreach ($iterator as $key => $value) {
- if ($callback($value, $key)) {
- return $value;
- }
- }
- return value($default);
- }
- /**
- * Get a flattened list of the items in the collection.
- *
- * @param int $depth
- * @return static<int, mixed>
- */
- public function flatten($depth = INF)
- {
- $instance = new static(function () use ($depth) {
- foreach ($this as $item) {
- if (! is_array($item) && ! $item instanceof Enumerable) {
- yield $item;
- } elseif ($depth === 1) {
- yield from $item;
- } else {
- yield from (new static($item))->flatten($depth - 1);
- }
- }
- });
- return $instance->values();
- }
- /**
- * Flip the items in the collection.
- *
- * @return static<TValue, TKey>
- */
- public function flip()
- {
- return new static(function () {
- foreach ($this as $key => $value) {
- yield $value => $key;
- }
- });
- }
- /**
- * Get an item by key.
- *
- * @template TGetDefault
- *
- * @param TKey|null $key
- * @param TGetDefault|(\Closure(): TGetDefault) $default
- * @return TValue|TGetDefault
- */
- public function get($key, $default = null)
- {
- if (is_null($key)) {
- return;
- }
- foreach ($this as $outerKey => $outerValue) {
- if ($outerKey == $key) {
- return $outerValue;
- }
- }
- return value($default);
- }
- /**
- * Group an associative array by a field or using a callback.
- *
- * @template TGroupKey of array-key
- *
- * @param (callable(TValue, TKey): TGroupKey)|array|string $groupBy
- * @param bool $preserveKeys
- * @return static<($groupBy is string ? array-key : ($groupBy is array ? array-key : TGroupKey)), static<($preserveKeys is true ? TKey : int), ($groupBy is array ? mixed : TValue)>>
- */
- public function groupBy($groupBy, $preserveKeys = false)
- {
- return $this->passthru('groupBy', func_get_args());
- }
- /**
- * Key an associative array by a field or using a callback.
- *
- * @template TNewKey of array-key
- *
- * @param (callable(TValue, TKey): TNewKey)|array|string $keyBy
- * @return static<($keyBy is string ? array-key : ($keyBy is array ? array-key : TNewKey)), TValue>
- */
- public function keyBy($keyBy)
- {
- return new static(function () use ($keyBy) {
- $keyBy = $this->valueRetriever($keyBy);
- foreach ($this as $key => $item) {
- $resolvedKey = $keyBy($item, $key);
- if (is_object($resolvedKey)) {
- $resolvedKey = (string) $resolvedKey;
- }
- yield $resolvedKey => $item;
- }
- });
- }
- /**
- * Determine if an item exists in the collection by key.
- *
- * @param mixed $key
- * @return bool
- */
- public function has($key)
- {
- $keys = array_flip(is_array($key) ? $key : func_get_args());
- $count = count($keys);
- foreach ($this as $key => $value) {
- if (array_key_exists($key, $keys) && --$count == 0) {
- return true;
- }
- }
- return false;
- }
- /**
- * Determine if any of the keys exist in the collection.
- *
- * @param mixed $key
- * @return bool
- */
- public function hasAny($key)
- {
- $keys = array_flip(is_array($key) ? $key : func_get_args());
- foreach ($this as $key => $value) {
- if (array_key_exists($key, $keys)) {
- return true;
- }
- }
- return false;
- }
- /**
- * Concatenate values of a given key as a string.
- *
- * @param (callable(TValue, TKey): mixed)|string $value
- * @param string|null $glue
- * @return string
- */
- public function implode($value, $glue = null)
- {
- return $this->collect()->implode(...func_get_args());
- }
- /**
- * Intersect the collection with the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function intersect($items)
- {
- return $this->passthru('intersect', func_get_args());
- }
- /**
- * Intersect the collection with the given items, using the callback.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items
- * @param callable(TValue, TValue): int $callback
- * @return static
- */
- public function intersectUsing($items, callable $callback)
- {
- return $this->passthru('intersectUsing', func_get_args());
- }
- /**
- * Intersect the collection with the given items with additional index check.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function intersectAssoc($items)
- {
- return $this->passthru('intersectAssoc', func_get_args());
- }
- /**
- * Intersect the collection with the given items with additional index check, using the callback.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<array-key, TValue>|iterable<array-key, TValue> $items
- * @param callable(TValue, TValue): int $callback
- * @return static
- */
- public function intersectAssocUsing($items, callable $callback)
- {
- return $this->passthru('intersectAssocUsing', func_get_args());
- }
- /**
- * Intersect the collection with the given items by key.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, mixed>|iterable<TKey, mixed> $items
- * @return static
- */
- public function intersectByKeys($items)
- {
- return $this->passthru('intersectByKeys', func_get_args());
- }
- /**
- * Determine if the items are empty or not.
- *
- * @return bool
- */
- public function isEmpty()
- {
- return ! $this->getIterator()->valid();
- }
- /**
- * Determine if the collection contains a single item.
- *
- * @return bool
- */
- public function containsOneItem()
- {
- return $this->take(2)->count() === 1;
- }
- /**
- * Join all items from the collection using a string. The final items can use a separate glue string.
- *
- * @param string $glue
- * @param string $finalGlue
- * @return string
- */
- public function join($glue, $finalGlue = '')
- {
- return $this->collect()->join(...func_get_args());
- }
- /**
- * Get the keys of the collection items.
- *
- * @return static<int, TKey>
- */
- public function keys()
- {
- return new static(function () {
- foreach ($this as $key => $value) {
- yield $key;
- }
- });
- }
- /**
- * Get the last item from the collection.
- *
- * @template TLastDefault
- *
- * @param (callable(TValue, TKey): bool)|null $callback
- * @param TLastDefault|(\Closure(): TLastDefault) $default
- * @return TValue|TLastDefault
- */
- public function last(?callable $callback = null, $default = null)
- {
- $needle = $placeholder = new stdClass;
- foreach ($this as $key => $value) {
- if (is_null($callback) || $callback($value, $key)) {
- $needle = $value;
- }
- }
- return $needle === $placeholder ? value($default) : $needle;
- }
- /**
- * Get the values of a given key.
- *
- * @param string|array<array-key, string> $value
- * @param string|null $key
- * @return static<array-key, mixed>
- */
- public function pluck($value, $key = null)
- {
- return new static(function () use ($value, $key) {
- [$value, $key] = $this->explodePluckParameters($value, $key);
- foreach ($this as $item) {
- $itemValue = $value instanceof Closure
- ? $value($item)
- : data_get($item, $value);
- if (is_null($key)) {
- yield $itemValue;
- } else {
- $itemKey = $key instanceof Closure
- ? $key($item)
- : data_get($item, $key);
- if (is_object($itemKey) && method_exists($itemKey, '__toString')) {
- $itemKey = (string) $itemKey;
- }
- yield $itemKey => $itemValue;
- }
- }
- });
- }
- /**
- * Run a map over each of the items.
- *
- * @template TMapValue
- *
- * @param callable(TValue, TKey): TMapValue $callback
- * @return static<TKey, TMapValue>
- */
- public function map(callable $callback)
- {
- return new static(function () use ($callback) {
- foreach ($this as $key => $value) {
- yield $key => $callback($value, $key);
- }
- });
- }
- /**
- * Run a dictionary map over the items.
- *
- * The callback should return an associative array with a single key/value pair.
- *
- * @template TMapToDictionaryKey of array-key
- * @template TMapToDictionaryValue
- *
- * @param callable(TValue, TKey): array<TMapToDictionaryKey, TMapToDictionaryValue> $callback
- * @return static<TMapToDictionaryKey, array<int, TMapToDictionaryValue>>
- */
- public function mapToDictionary(callable $callback)
- {
- return $this->passthru('mapToDictionary', func_get_args());
- }
- /**
- * Run an associative map over each of the items.
- *
- * The callback should return an associative array with a single key/value pair.
- *
- * @template TMapWithKeysKey of array-key
- * @template TMapWithKeysValue
- *
- * @param callable(TValue, TKey): array<TMapWithKeysKey, TMapWithKeysValue> $callback
- * @return static<TMapWithKeysKey, TMapWithKeysValue>
- */
- public function mapWithKeys(callable $callback)
- {
- return new static(function () use ($callback) {
- foreach ($this as $key => $value) {
- yield from $callback($value, $key);
- }
- });
- }
- /**
- * Merge the collection with the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function merge($items)
- {
- return $this->passthru('merge', func_get_args());
- }
- /**
- * Recursively merge the collection with the given items.
- *
- * @template TMergeRecursiveValue
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TMergeRecursiveValue>|iterable<TKey, TMergeRecursiveValue> $items
- * @return static<TKey, TValue|TMergeRecursiveValue>
- */
- public function mergeRecursive($items)
- {
- return $this->passthru('mergeRecursive', func_get_args());
- }
- /**
- * Multiply the items in the collection by the multiplier.
- *
- * @param int $multiplier
- * @return static
- */
- public function multiply(int $multiplier)
- {
- return $this->passthru('multiply', func_get_args());
- }
- /**
- * Create a collection by using this collection for keys and another for its values.
- *
- * @template TCombineValue
- *
- * @param \IteratorAggregate<array-key, TCombineValue>|array<array-key, TCombineValue>|(callable(): \Generator<array-key, TCombineValue>) $values
- * @return static<TValue, TCombineValue>
- */
- public function combine($values)
- {
- return new static(function () use ($values) {
- $values = $this->makeIterator($values);
- $errorMessage = 'Both parameters should have an equal number of elements';
- foreach ($this as $key) {
- if (! $values->valid()) {
- trigger_error($errorMessage, E_USER_WARNING);
- break;
- }
- yield $key => $values->current();
- $values->next();
- }
- if ($values->valid()) {
- trigger_error($errorMessage, E_USER_WARNING);
- }
- });
- }
- /**
- * Union the collection with the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function union($items)
- {
- return $this->passthru('union', func_get_args());
- }
- /**
- * Create a new collection consisting of every n-th element.
- *
- * @param int $step
- * @param int $offset
- * @return static
- */
- public function nth($step, $offset = 0)
- {
- return new static(function () use ($step, $offset) {
- $position = 0;
- foreach ($this->slice($offset) as $item) {
- if ($position % $step === 0) {
- yield $item;
- }
- $position++;
- }
- });
- }
- /**
- * Get the items with the specified keys.
- *
- * @param \Illuminate\Support\Enumerable<array-key, TKey>|array<array-key, TKey>|string $keys
- * @return static
- */
- public function only($keys)
- {
- if ($keys instanceof Enumerable) {
- $keys = $keys->all();
- } elseif (! is_null($keys)) {
- $keys = is_array($keys) ? $keys : func_get_args();
- }
- return new static(function () use ($keys) {
- if (is_null($keys)) {
- yield from $this;
- } else {
- $keys = array_flip($keys);
- foreach ($this as $key => $value) {
- if (array_key_exists($key, $keys)) {
- yield $key => $value;
- unset($keys[$key]);
- if (empty($keys)) {
- break;
- }
- }
- }
- }
- });
- }
- /**
- * Select specific values from the items within the collection.
- *
- * @param \Illuminate\Support\Enumerable<array-key, TKey>|array<array-key, TKey>|string $keys
- * @return static
- */
- public function select($keys)
- {
- if ($keys instanceof Enumerable) {
- $keys = $keys->all();
- } elseif (! is_null($keys)) {
- $keys = is_array($keys) ? $keys : func_get_args();
- }
- return new static(function () use ($keys) {
- if (is_null($keys)) {
- yield from $this;
- } else {
- foreach ($this as $item) {
- $result = [];
- foreach ($keys as $key) {
- if (Arr::accessible($item) && Arr::exists($item, $key)) {
- $result[$key] = $item[$key];
- } elseif (is_object($item) && isset($item->{$key})) {
- $result[$key] = $item->{$key};
- }
- }
- yield $result;
- }
- }
- });
- }
- /**
- * Push all of the given items onto the collection.
- *
- * @template TConcatKey of array-key
- * @template TConcatValue
- *
- * @param iterable<TConcatKey, TConcatValue> $source
- * @return static<TKey|TConcatKey, TValue|TConcatValue>
- */
- public function concat($source)
- {
- return (new static(function () use ($source) {
- yield from $this;
- yield from $source;
- }))->values();
- }
- /**
- * Get one or a specified number of items randomly from the collection.
- *
- * @param int|null $number
- * @return static<int, TValue>|TValue
- *
- * @throws \InvalidArgumentException
- */
- public function random($number = null)
- {
- $result = $this->collect()->random(...func_get_args());
- return is_null($number) ? $result : new static($result);
- }
- /**
- * Replace the collection items with the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function replace($items)
- {
- return new static(function () use ($items) {
- $items = $this->getArrayableItems($items);
- foreach ($this as $key => $value) {
- if (array_key_exists($key, $items)) {
- yield $key => $items[$key];
- unset($items[$key]);
- } else {
- yield $key => $value;
- }
- }
- foreach ($items as $key => $value) {
- yield $key => $value;
- }
- });
- }
- /**
- * Recursively replace the collection items with the given items.
- *
- * @param \Illuminate\Contracts\Support\Arrayable<TKey, TValue>|iterable<TKey, TValue> $items
- * @return static
- */
- public function replaceRecursive($items)
- {
- return $this->passthru('replaceRecursive', func_get_args());
- }
- /**
- * Reverse items order.
- *
- * @return static<TKey, TValue>
- */
- public function reverse()
- {
- return $this->passthru('reverse', func_get_args());
- }
- /**
- * Search the collection for a given value and return the corresponding key if successful.
- *
- * @param TValue|(callable(TValue,TKey): bool) $value
- * @param bool $strict
- * @return TKey|false
- */
- public function search($value, $strict = false)
- {
- /** @var (callable(TValue,TKey): bool) $predicate */
- $predicate = $this->useAsCallable($value)
- ? $value
- : function ($item) use ($value, $strict) {
- return $strict ? $item === $value : $item == $value;
- };
- foreach ($this as $key => $item) {
- if ($predicate($item, $key)) {
- return $key;
- }
- }
- return false;
- }
- /**
- * Get the item before the given item.
- *
- * @param TValue|(callable(TValue,TKey): bool) $value
- * @param bool $strict
- * @return TValue|null
- */
- public function before($value, $strict = false)
- {
- $previous = null;
- /** @var (callable(TValue,TKey): bool) $predicate */
- $predicate = $this->useAsCallable($value)
- ? $value
- : function ($item) use ($value, $strict) {
- return $strict ? $item === $value : $item == $value;
- };
- foreach ($this as $key => $item) {
- if ($predicate($item, $key)) {
- return $previous;
- }
- $previous = $item;
- }
- return null;
- }
- /**
- * Get the item after the given item.
- *
- * @param TValue|(callable(TValue,TKey): bool) $value
- * @param bool $strict
- * @return TValue|null
- */
- public function after($value, $strict = false)
- {
- $found = false;
- /** @var (callable(TValue,TKey): bool) $predicate */
- $predicate = $this->useAsCallable($value)
- ? $value
- : function ($item) use ($value, $strict) {
- return $strict ? $item === $value : $item == $value;
- };
- foreach ($this as $key => $item) {
- if ($found) {
- return $item;
- }
- if ($predicate($item, $key)) {
- $found = true;
- }
- }
- return null;
- }
- /**
- * Shuffle the items in the collection.
- *
- * @return static<TKey, TValue>
- */
- public function shuffle()
- {
- return $this->passthru('shuffle', []);
- }
- /**
- * Create chunks representing a "sliding window" view of the items in the collection.
- *
- * @param int $size
- * @param int $step
- * @return static<int, static>
- */
- public function sliding($size = 2, $step = 1)
- {
- return new static(function () use ($size, $step) {
- $iterator = $this->getIterator();
- $chunk = [];
- while ($iterator->valid()) {
- $chunk[$iterator->key()] = $iterator->current();
- if (count($chunk) == $size) {
- yield (new static($chunk))->tap(function () use (&$chunk, $step) {
- $chunk = array_slice($chunk, $step, null, true);
- });
- // If the $step between chunks is bigger than each chunk's $size
- // we will skip the extra items (which should never be in any
- // chunk) before we continue to the next chunk in the loop.
- if ($step > $size) {
- $skip = $step - $size;
- for ($i = 0; $i < $skip && $iterator->valid(); $i++) {
- $iterator->next();
- }
- }
- }
- $iterator->next();
- }
- });
- }
- /**
- * Skip the first {$count} items.
- *
- * @param int $count
- * @return static
- */
- public function skip($count)
- {
- return new static(function () use ($count) {
- $iterator = $this->getIterator();
- while ($iterator->valid() && $count--) {
- $iterator->next();
- }
- while ($iterator->valid()) {
- yield $iterator->key() => $iterator->current();
- $iterator->next();
- }
- });
- }
- /**
- * Skip items in the collection until the given condition is met.
- *
- * @param TValue|callable(TValue,TKey): bool $value
- * @return static
- */
- public function skipUntil($value)
- {
- $callback = $this->useAsCallable($value) ? $value : $this->equality($value);
- return $this->skipWhile($this->negate($callback));
- }
- /**
- * Skip items in the collection while the given condition is met.
- *
- * @param TValue|callable(TValue,TKey): bool $value
- * @return static
- */
- public function skipWhile($value)
- {
- $callback = $this->useAsCallable($value) ? $value : $this->equality($value);
- return new static(function () use ($callback) {
- $iterator = $this->getIterator();
- while ($iterator->valid() && $callback($iterator->current(), $iterator->key())) {
- $iterator->next();
- }
- while ($iterator->valid()) {
- yield $iterator->key() => $iterator->current();
- $iterator->next();
- }
- });
- }
- /**
- * Get a slice of items from the enumerable.
- *
- * @param int $offset
- * @param int|null $length
- * @return static
- */
- public function slice($offset, $length = null)
- {
- if ($offset < 0 || $length < 0) {
- return $this->passthru('slice', func_get_args());
- }
- $instance = $this->skip($offset);
- return is_null($length) ? $instance : $instance->take($length);
- }
- /**
- * Split a collection into a certain number of groups.
- *
- * @param int $numberOfGroups
- * @return static<int, static>
- */
- public function split($numberOfGroups)
- {
- return $this->passthru('split', func_get_args());
- }
- /**
- * Get the first item in the collection, but only if exactly one item exists. Otherwise, throw an exception.
- *
- * @param (callable(TValue, TKey): bool)|string|null $key
- * @param mixed $operator
- * @param mixed $value
- * @return TValue
- *
- * @throws \Illuminate\Support\ItemNotFoundException
- * @throws \Illuminate\Support\MultipleItemsFoundException
- */
- public function sole($key = null, $operator = null, $value = null)
- {
- $filter = func_num_args() > 1
- ? $this->operatorForWhere(...func_get_args())
- : $key;
- return $this
- ->unless($filter == null)
- ->filter($filter)
- ->take(2)
- ->collect()
- ->sole();
- }
- /**
- * Get the first item in the collection but throw an exception if no matching items exist.
- *
- * @param (callable(TValue, TKey): bool)|string|null $key
- * @param mixed $operator
- * @param mixed $value
- * @return TValue
- *
- * @throws \Illuminate\Support\ItemNotFoundException
- */
- public function firstOrFail($key = null, $operator = null, $value = null)
- {
- $filter = func_num_args() > 1
- ? $this->operatorForWhere(...func_get_args())
- : $key;
- return $this
- ->unless($filter == null)
- ->filter($filter)
- ->take(1)
- ->collect()
- ->firstOrFail();
- }
- /**
- * Chunk the collection into chunks of the given size.
- *
- * @param int $size
- * @param bool $preserveKeys
- * @return ($preserveKeys is true ? static<int, static> : static<int, static<int, TValue>>)
- */
- public function chunk($size, $preserveKeys = true)
- {
- if ($size <= 0) {
- return static::empty();
- }
- $add = match ($preserveKeys) {
- true => fn (array &$chunk, Traversable $iterator) => $chunk[$iterator->key()] = $iterator->current(),
- false => fn (array &$chunk, Traversable $iterator) => $chunk[] = $iterator->current(),
- };
- return new static(function () use ($size, $add) {
- $iterator = $this->getIterator();
- while ($iterator->valid()) {
- $chunk = [];
- while (true) {
- $add($chunk, $iterator);
- if (count($chunk) < $size) {
- $iterator->next();
- if (! $iterator->valid()) {
- break;
- }
- } else {
- break;
- }
- }
- yield new static($chunk);
- $iterator->next();
- }
- });
- }
- /**
- * Split a collection into a certain number of groups, and fill the first groups completely.
- *
- * @param int $numberOfGroups
- * @return static<int, static>
- */
- public function splitIn($numberOfGroups)
- {
- return $this->chunk((int) ceil($this->count() / $numberOfGroups));
- }
- /**
- * Chunk the collection into chunks with a callback.
- *
- * @param callable(TValue, TKey, Collection<TKey, TValue>): bool $callback
- * @return static<int, static<TKey, TValue>>
- */
- public function chunkWhile(callable $callback)
- {
- return new static(function () use ($callback) {
- $iterator = $this->getIterator();
- $chunk = new Collection;
- if ($iterator->valid()) {
- $chunk[$iterator->key()] = $iterator->current();
- $iterator->next();
- }
- while ($iterator->valid()) {
- if (! $callback($iterator->current(), $iterator->key(), $chunk)) {
- yield new static($chunk);
- $chunk = new Collection;
- }
- $chunk[$iterator->key()] = $iterator->current();
- $iterator->next();
- }
- if ($chunk->isNotEmpty()) {
- yield new static($chunk);
- }
- });
- }
- /**
- * Sort through each item with a callback.
- *
- * @param (callable(TValue, TValue): int)|null|int $callback
- * @return static
- */
- public function sort($callback = null)
- {
- return $this->passthru('sort', func_get_args());
- }
- /**
- * Sort items in descending order.
- *
- * @param int $options
- * @return static
- */
- public function sortDesc($options = SORT_REGULAR)
- {
- return $this->passthru('sortDesc', func_get_args());
- }
- /**
- * Sort the collection using the given callback.
- *
- * @param array<array-key, (callable(TValue, TValue): mixed)|(callable(TValue, TKey): mixed)|string|array{string, string}>|(callable(TValue, TKey): mixed)|string $callback
- * @param int $options
- * @param bool $descending
- * @return static
- */
- public function sortBy($callback, $options = SORT_REGULAR, $descending = false)
- {
- return $this->passthru('sortBy', func_get_args());
- }
- /**
- * Sort the collection in descending order using the given callback.
- *
- * @param array<array-key, (callable(TValue, TValue): mixed)|(callable(TValue, TKey): mixed)|string|array{string, string}>|(callable(TValue, TKey): mixed)|string $callback
- * @param int $options
- * @return static
- */
- public function sortByDesc($callback, $options = SORT_REGULAR)
- {
- return $this->passthru('sortByDesc', func_get_args());
- }
- /**
- * Sort the collection keys.
- *
- * @param int $options
- * @param bool $descending
- * @return static
- */
- public function sortKeys($options = SORT_REGULAR, $descending = false)
- {
- return $this->passthru('sortKeys', func_get_args());
- }
- /**
- * Sort the collection keys in descending order.
- *
- * @param int $options
- * @return static
- */
- public function sortKeysDesc($options = SORT_REGULAR)
- {
- return $this->passthru('sortKeysDesc', func_get_args());
- }
- /**
- * Sort the collection keys using a callback.
- *
- * @param callable(TKey, TKey): int $callback
- * @return static
- */
- public function sortKeysUsing(callable $callback)
- {
- return $this->passthru('sortKeysUsing', func_get_args());
- }
- /**
- * Take the first or last {$limit} items.
- *
- * @param int $limit
- * @return static<TKey, TValue>
- */
- public function take($limit)
- {
- if ($limit < 0) {
- return new static(function () use ($limit) {
- $limit = abs($limit);
- $ringBuffer = [];
- $position = 0;
- foreach ($this as $key => $value) {
- $ringBuffer[$position] = [$key, $value];
- $position = ($position + 1) % $limit;
- }
- for ($i = 0, $end = min($limit, count($ringBuffer)); $i < $end; $i++) {
- $pointer = ($position + $i) % $limit;
- yield $ringBuffer[$pointer][0] => $ringBuffer[$pointer][1];
- }
- });
- }
- return new static(function () use ($limit) {
- $iterator = $this->getIterator();
- while ($limit--) {
- if (! $iterator->valid()) {
- break;
- }
- yield $iterator->key() => $iterator->current();
- if ($limit) {
- $iterator->next();
- }
- }
- });
- }
- /**
- * Take items in the collection until the given condition is met.
- *
- * @param TValue|callable(TValue,TKey): bool $value
- * @return static<TKey, TValue>
- */
- public function takeUntil($value)
- {
- /** @var callable(TValue, TKey): bool $callback */
- $callback = $this->useAsCallable($value) ? $value : $this->equality($value);
- return new static(function () use ($callback) {
- foreach ($this as $key => $item) {
- if ($callback($item, $key)) {
- break;
- }
- yield $key => $item;
- }
- });
- }
- /**
- * Take items in the collection until a given point in time, with an optional callback on timeout.
- *
- * @param \DateTimeInterface $timeout
- * @param callable(TValue|null, TKey|null): mixed|null $callback
- * @return static<TKey, TValue>
- */
- public function takeUntilTimeout(DateTimeInterface $timeout, ?callable $callback = null)
- {
- $timeout = $timeout->getTimestamp();
- return new static(function () use ($timeout, $callback) {
- if ($this->now() >= $timeout) {
- if ($callback) {
- $callback(null, null);
- }
- return;
- }
- foreach ($this as $key => $value) {
- yield $key => $value;
- if ($this->now() >= $timeout) {
- if ($callback) {
- $callback($value, $key);
- }
- break;
- }
- }
- });
- }
- /**
- * Take items in the collection while the given condition is met.
- *
- * @param TValue|callable(TValue,TKey): bool $value
- * @return static<TKey, TValue>
- */
- public function takeWhile($value)
- {
- /** @var callable(TValue, TKey): bool $callback */
- $callback = $this->useAsCallable($value) ? $value : $this->equality($value);
- return $this->takeUntil(fn ($item, $key) => ! $callback($item, $key));
- }
- /**
- * Pass each item in the collection to the given callback, lazily.
- *
- * @param callable(TValue, TKey): mixed $callback
- * @return static<TKey, TValue>
- */
- public function tapEach(callable $callback)
- {
- return new static(function () use ($callback) {
- foreach ($this as $key => $value) {
- $callback($value, $key);
- yield $key => $value;
- }
- });
- }
- /**
- * Throttle the values, releasing them at most once per the given seconds.
- *
- * @return static<TKey, TValue>
- */
- public function throttle(float $seconds)
- {
- return new static(function () use ($seconds) {
- $microseconds = $seconds * 1_000_000;
- foreach ($this as $key => $value) {
- $fetchedAt = $this->preciseNow();
- yield $key => $value;
- $sleep = $microseconds - ($this->preciseNow() - $fetchedAt);
- $this->usleep((int) $sleep);
- }
- });
- }
- /**
- * Flatten a multi-dimensional associative array with dots.
- *
- * @return static
- */
- public function dot()
- {
- return $this->passthru('dot', []);
- }
- /**
- * Convert a flatten "dot" notation array into an expanded array.
- *
- * @return static
- */
- public function undot()
- {
- return $this->passthru('undot', []);
- }
- /**
- * Return only unique items from the collection array.
- *
- * @param (callable(TValue, TKey): mixed)|string|null $key
- * @param bool $strict
- * @return static<TKey, TValue>
- */
- public function unique($key = null, $strict = false)
- {
- $callback = $this->valueRetriever($key);
- return new static(function () use ($callback, $strict) {
- $exists = [];
- foreach ($this as $key => $item) {
- if (! in_array($id = $callback($item, $key), $exists, $strict)) {
- yield $key => $item;
- $exists[] = $id;
- }
- }
- });
- }
- /**
- * Reset the keys on the underlying array.
- *
- * @return static<int, TValue>
- */
- public function values()
- {
- return new static(function () {
- foreach ($this as $item) {
- yield $item;
- }
- });
- }
- /**
- * Run the given callback every time the interval has passed.
- *
- * @return static<TKey, TValue>
- */
- public function withHeartbeat(DateInterval|int $interval, callable $callback)
- {
- $seconds = is_int($interval) ? $interval : $this->intervalSeconds($interval);
- return new static(function () use ($seconds, $callback) {
- $start = $this->now();
- foreach ($this as $key => $value) {
- $now = $this->now();
- if (($now - $start) >= $seconds) {
- $callback();
- $start = $now;
- }
- yield $key => $value;
- }
- });
- }
- /**
- * Get the total seconds from the given interval.
- */
- protected function intervalSeconds(DateInterval $interval): int
- {
- $start = new DateTimeImmutable();
- return $start->add($interval)->getTimestamp() - $start->getTimestamp();
- }
- /**
- * Zip the collection together with one or more arrays.
- *
- * e.g. new LazyCollection([1, 2, 3])->zip([4, 5, 6]);
- * => [[1, 4], [2, 5], [3, 6]]
- *
- * @template TZipValue
- *
- * @param \Illuminate\Contracts\Support\Arrayable<array-key, TZipValue>|iterable<array-key, TZipValue> ...$items
- * @return static<int, static<int, TValue|TZipValue>>
- */
- public function zip($items)
- {
- $iterables = func_get_args();
- return new static(function () use ($iterables) {
- $iterators = (new Collection($iterables))
- ->map(fn ($iterable) => $this->makeIterator($iterable))
- ->prepend($this->getIterator());
- while ($iterators->contains->valid()) {
- yield new static($iterators->map->current());
- $iterators->each->next();
- }
- });
- }
- /**
- * Pad collection to the specified length with a value.
- *
- * @template TPadValue
- *
- * @param int $size
- * @param TPadValue $value
- * @return static<int, TValue|TPadValue>
- */
- public function pad($size, $value)
- {
- if ($size < 0) {
- return $this->passthru('pad', func_get_args());
- }
- return new static(function () use ($size, $value) {
- $yielded = 0;
- foreach ($this as $index => $item) {
- yield $index => $item;
- $yielded++;
- }
- while ($yielded++ < $size) {
- yield $value;
- }
- });
- }
- /**
- * Get the values iterator.
- *
- * @return \Traversable<TKey, TValue>
- */
- public function getIterator(): Traversable
- {
- return $this->makeIterator($this->source);
- }
- /**
- * Count the number of items in the collection.
- *
- * @return int
- */
- public function count(): int
- {
- if (is_array($this->source)) {
- return count($this->source);
- }
- return iterator_count($this->getIterator());
- }
- /**
- * Make an iterator from the given source.
- *
- * @template TIteratorKey of array-key
- * @template TIteratorValue
- *
- * @param \IteratorAggregate<TIteratorKey, TIteratorValue>|array<TIteratorKey, TIteratorValue>|(callable(): \Generator<TIteratorKey, TIteratorValue>) $source
- * @return \Traversable<TIteratorKey, TIteratorValue>
- */
- protected function makeIterator($source)
- {
- if ($source instanceof IteratorAggregate) {
- return $source->getIterator();
- }
- if (is_array($source)) {
- return new ArrayIterator($source);
- }
- if (is_callable($source)) {
- $maybeTraversable = $source();
- return $maybeTraversable instanceof Traversable
- ? $maybeTraversable
- : new ArrayIterator(Arr::wrap($maybeTraversable));
- }
- return new ArrayIterator((array) $source);
- }
- /**
- * Explode the "value" and "key" arguments passed to "pluck".
- *
- * @param string|string[] $value
- * @param string|string[]|null $key
- * @return array{string[],string[]|null}
- */
- protected function explodePluckParameters($value, $key)
- {
- $value = is_string($value) ? explode('.', $value) : $value;
- $key = is_null($key) || is_array($key) || $key instanceof Closure ? $key : explode('.', $key);
- return [$value, $key];
- }
- /**
- * Pass this lazy collection through a method on the collection class.
- *
- * @param string $method
- * @param array<mixed> $params
- * @return static
- */
- protected function passthru($method, array $params)
- {
- return new static(function () use ($method, $params) {
- yield from $this->collect()->$method(...$params);
- });
- }
- /**
- * Get the current time.
- *
- * @return int
- */
- protected function now()
- {
- return class_exists(Carbon::class)
- ? Carbon::now()->timestamp
- : time();
- }
- /**
- * Get the precise current time.
- *
- * @return float
- */
- protected function preciseNow()
- {
- return class_exists(Carbon::class)
- ? Carbon::now()->getPreciseTimestamp()
- : microtime(true) * 1_000_000;
- }
- /**
- * Sleep for the given amount of microseconds.
- *
- * @return void
- */
- protected function usleep(int $microseconds)
- {
- if ($microseconds <= 0) {
- return;
- }
- class_exists(Sleep::class)
- ? Sleep::usleep($microseconds)
- : usleep($microseconds);
- }
- }
|