home/alospiesjs/www/apis/youtube/vendor/illuminate/collections/LazyCollection.php000060400000127504151156471310024557 0ustar00 */ class LazyCollection implements CanBeEscapedWhenCastToString, Enumerable { /** * @use \Illuminate\Support\Traits\EnumeratesValues */ use EnumeratesValues, Macroable; /** * The source from which to generate items. * * @var (Closure(): \Generator)|static|array */ public $source; /** * Create a new lazy collection instance. * * @param \Illuminate\Contracts\Support\Arrayable|iterable|(Closure(): \Generator)|self|array|null $source * @return void */ public function __construct($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|iterable|(Closure(): \Generator)|self|array|null $items * @return static */ public static function make($items = []) { return new static($items); } /** * Create a collection with the given range. * * @param int $from * @param int $to * @return static */ public static function range($from, $to) { return new static(function () use ($from, $to) { if ($from <= $to) { for (; $from <= $to; $from++) { yield $from; } } else { for (; $from >= $to; $from--) { yield $from; } } }); } /** * Get all items in the enumerable. * * @return array */ public function all() { if (is_array($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 */ public function eager() { return new static($this->all()); } /** * Cache values as they're enumerated. * * @return static */ 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 average value of a given key. * * @param (callable(TValue): float|int)|string|null $callback * @return float|int|null */ public function avg($callback = null) { return $this->collect()->avg($callback); } /** * Get the median of a given key. * * @param string|array|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|null $key * @return array|null */ public function mode($key = null) { return $this->collect()->mode($key); } /** * Collapse the collection of items into a single array. * * @return static */ public function collapse() { return new static(function () { foreach ($this as $values) { if (is_array($values) || $values instanceof Enumerable) { foreach ($values as $value) { yield $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 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 ! $this->contains(...func_get_args()); } /** * Cross join the given iterables, returning all possible permutations. * * @template TCrossJoinKey * @template TCrossJoinValue * * @param \Illuminate\Contracts\Support\Arrayable|iterable ...$arrays * @return static> */ 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): mixed)|string|null $countBy * @return static */ public function countBy($countBy = null) { $countBy = is_null($countBy) ? $this->identity() : $this->valueRetriever($countBy); return new static(function () use ($countBy) { $counts = []; foreach ($this as $key => $value) { $group = $countBy($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|iterable $items * @return static */ public function diff($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|iterable $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|iterable $items * @return static */ public function diffAssoc($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|iterable $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|iterable $items * @return static */ public function diffKeys($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|iterable $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. * * @param (callable(TValue): bool)|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. * * @param (callable(TValue): bool)|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 $keys * @return static */ public function except($keys) { return $this->passthru('except', func_get_args()); } /** * Run a filter over each of the items. * * @param (callable(TValue): bool)|null $callback * @return static */ public function filter(callable $callback = null) { if (is_null($callback)) { $callback = function ($value) { return (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 $depth * @return static */ public function flatten($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 $instance->values(); } /** * Flip the items in the collection. * * @return static */ public function flip() { return new static(function () { foreach ($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. * * @param (callable(TValue, TKey): array-key)|array|string $groupBy * @param bool $preserveKeys * @return static> */ public function groupBy($groupBy, $preserveKeys = false) { return $this->passthru('groupBy', func_get_args()); } /** * Key an associative array by a field or using a callback. * * @param (callable(TValue, TKey): array-key)|array|string $keyBy * @return static */ public function keyBy($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|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|iterable $items * @return static */ public function intersect($items) { return $this->passthru('intersect', func_get_args()); } /** * Intersect the collection with the given items by key. * * @param \Illuminate\Contracts\Support\Arrayable|iterable $items * @return static */ public function intersectByKeys($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 $this->collect()->join(...func_get_args()); } /** * Get the keys of the collection items. * * @return static */ public function keys() { return new static(function () { foreach ($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 $value * @param string|null $key * @return static */ public function pluck($value, $key = null) { return new static(function () use ($value, $key) { [$value, $key] = $this->explodePluckParameters($value, $key); foreach ($this as $item) { $itemValue = data_get($item, $value); if (is_null($key)) { yield $itemValue; } else { $itemKey = data_get($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 */ 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 $callback * @return static> */ 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 $callback * @return static */ 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|iterable $items * @return static */ public function merge($items) { return $this->passthru('merge', func_get_args()); } /** * Recursively merge the collection with the given items. * * @template TMergeRecursiveValue * * @param \Illuminate\Contracts\Support\Arrayable|iterable $items * @return static */ public function mergeRecursive($items) { return $this->passthru('mergeRecursive', func_get_args()); } /** * Create a collection by using this collection for keys and another for its values. * * @template TCombineValue * * @param \IteratorAggregate|array|(callable(): \Generator) $values * @return static */ public function combine($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|iterable $items * @return static */ public function union($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|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; } } } } }); } /** * Push all of the given items onto the collection. * * @param iterable $source * @return static */ public function concat($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 $number * @return static|TValue * * @throws \InvalidArgumentException */ public function random($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|iterable $items * @return static */ public function replace($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|iterable $items * @return static */ public function replaceRecursive($items) { return $this->passthru('replaceRecursive', func_get_args()); } /** * Reverse items order. * * @return static */ 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 $strict * @return TKey|bool */ public function search($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; } /** * Shuffle the items in the collection. * * @param int|null $seed * @return static */ public function shuffle($seed = null) { return $this->passthru('shuffle', func_get_args()); } /** * Create chunks representing a "sliding window" view of the items in the collection. * * @param int $size * @param int $step * @return static */ public function sliding($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 $numberOfGroups * @return static */ public function split($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 $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 $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 $size * @return static */ public function chunk($size) { if ($size <= 0) { return static::empty(); } return new static(function () use ($size) { $iterator = $this->getIterator(); while ($iterator->valid()) { $chunk = []; while (true) { $chunk[$iterator->key()] = $iterator->current(); if (count($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 $numberOfGroups * @return static */ public function splitIn($numberOfGroups) { return $this->chunk(ceil($this->count() / $numberOfGroups)); } /** * Chunk the collection into chunks with a callback. * * @param callable(TValue, TKey, Collection): bool $callback * @return static> */ 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|(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|(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 $limit * @return static */ public function take($limit) { if ($limit < 0) { return $this->passthru('take', func_get_args()); } return new static(function () use ($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 $value * @return static */ public function takeUntil($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. * * @param \DateTimeInterface $timeout * @return static */ public function takeUntilTimeout(DateTimeInterface $timeout) { $timeout = $timeout->getTimestamp(); return new static(function () use ($timeout) { if ($this->now() >= $timeout) { return; } foreach ($this as $key => $value) { yield $key => $value; if ($this->now() >= $timeout) { break; } } }); } /** * Take items in the collection while the given condition is met. * * @param TValue|callable(TValue,TKey): bool $value * @return static */ public function takeWhile($value) { /** @var callable(TValue, TKey): bool $callback */ $callback = $this->useAsCallable($value) ? $value : $this->equality($value); return $this->takeUntil(function ($item, $key) use ($callback) { return ! $callback($item, $key); }); } /** * Pass each item in the collection to the given callback, lazily. * * @param callable(TValue, TKey): mixed $callback * @return static */ public function tapEach(callable $callback) { return new static(function () use ($callback) { foreach ($this as $key => $value) { $callback($value, $key); yield $key => $value; } }); } /** * 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 $strict * @return static */ public function unique($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[] = $id; } } }); } /** * Reset the keys on the underlying array. * * @return static */ public function values() { return new static(function () { foreach ($this as $item) { yield $item; } }); } /** * Zip the collection together with one or more arrays. * * e.g. new LazyCollection([1, 2, 3])->zip([4, 5, 6]); * => [[1, 4], [2, 5], [3, 6]] * * @template TZipValue * * @param \Illuminate\Contracts\Support\Arrayable|iterable ...$items * @return static> */ public function zip($items) { $iterables = func_get_args(); return new static(function () use ($iterables) { $iterators = Collection::make($iterables)->map(function ($iterable) { return $this->makeIterator($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 $value * @return static */ public function pad($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 */ 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|array|(callable(): \Generator) $source * @return \Traversable */ protected function makeIterator($source) { if ($source instanceof IteratorAggregate) { return $source->getIterator(); } if (is_array($source)) { return new ArrayIterator($source); } return $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 : explode('.', $key); return [$value, $key]; } /** * Pass this lazy collection through a method on the collection class. * * @param string $method * @param array $params * @return static */ protected function passthru($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 time(); } }