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File / Folder	Size	Action
.	-
Exception	--	ren
Map	--	ren
Tool	--	ren
.htaccess	0.27KB	edt ren
AbstractArray.php	5.48KB	edt ren
AbstractCollection.php	9.458KB	edt ren
AbstractSet.php	1.075KB	edt ren
ArrayInterface.php	1.071KB	edt ren
Collection.php	2.521KB	edt ren
CollectionInterface.php	6.781KB	edt ren
DoubleEndedQueue.php	3.734KB	edt ren
DoubleEndedQueueInterfa...	10.396KB	edt ren
GenericArray.php	0.5KB	edt ren
Queue.php	3.825KB	edt ren
QueueInterface.php	7.354KB	edt ren
Set.php	1.72KB	edt ren

<?php

/**
 * This file is part of the ramsey/collection library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

declare(strict_types=1);

namespace Ramsey\Collection;

use Closure;
use Ramsey\Collection\Exception\CollectionMismatchException;
use Ramsey\Collection\Exception\InvalidArgumentException;
use Ramsey\Collection\Exception\InvalidSortOrderException;
use Ramsey\Collection\Exception\OutOfBoundsException;
use Ramsey\Collection\Tool\TypeTrait;
use Ramsey\Collection\Tool\ValueExtractorTrait;
use Ramsey\Collection\Tool\ValueToStringTrait;

use function array_filter;
use function array_map;
use function array_merge;
use function array_search;
use function array_udiff;
use function array_uintersect;
use function current;
use function end;
use function in_array;
use function is_int;
use function is_object;
use function reset;
use function spl_object_id;
use function sprintf;
use function unserialize;
use function usort;

/**
 * This class provides a basic implementation of `CollectionInterface`, to
 * minimize the effort required to implement this interface
 *
 * @template T
 * @extends AbstractArray<T>
 * @implements CollectionInterface<T>
 */
abstract class AbstractCollection extends AbstractArray implements CollectionInterface
{
    use TypeTrait;
    use ValueToStringTrait;
    use ValueExtractorTrait;

/**
     * @inheritDoc
     */
    public function add($element): bool
    {
        $this[] = $element;

return true;
    }

/**
     * @inheritDoc
     */
    public function contains($element, bool $strict = true): bool
    {
        return in_array($element, $this->data, $strict);
    }

/**
     * @inheritDoc
     */
    public function offsetSet($offset, $value): void
    {
        if ($this->checkType($this->getType(), $value) === false) {
            throw new InvalidArgumentException(
                'Value must be of type ' . $this->getType() . '; value is '
                . $this->toolValueToString($value),
            );
        }

if ($offset === null) {
            $this->data[] = $value;
        } else {
            $this->data[$offset] = $value;
        }
    }

/**
     * @inheritDoc
     */
    public function remove($element): bool
    {
        if (($position = array_search($element, $this->data, true)) !== false) {
            unset($this[$position]);

return true;
        }

return false;
    }

/**
     * @inheritDoc
     */
    public function column(string $propertyOrMethod): array
    {
        $temp = [];

foreach ($this->data as $item) {
            /** @var mixed $value */
            $value = $this->extractValue($item, $propertyOrMethod);

/** @psalm-suppress MixedAssignment */
            $temp[] = $value;
        }

return $temp;
    }

/**
     * @inheritDoc
     */
    public function first()
    {
        if ($this->isEmpty()) {
            throw new OutOfBoundsException('Can\'t determine first item. Collection is empty');
        }

reset($this->data);

/** @var T $first */
        $first = current($this->data);

return $first;
    }

/**
     * @inheritDoc
     */
    public function last()
    {
        if ($this->isEmpty()) {
            throw new OutOfBoundsException('Can\'t determine last item. Collection is empty');
        }

/** @var T $item */
        $item = end($this->data);
        reset($this->data);

return $item;
    }

public function sort(string $propertyOrMethod, string $order = self::SORT_ASC): CollectionInterface
    {
        if (!in_array($order, [self::SORT_ASC, self::SORT_DESC], true)) {
            throw new InvalidSortOrderException('Invalid sort order given: ' . $order);
        }

$collection = clone $this;

usort(
            $collection->data,
            /**
             * @param T $a
             * @param T $b
             */
            function ($a, $b) use ($propertyOrMethod, $order): int {
                /** @var mixed $aValue */
                $aValue = $this->extractValue($a, $propertyOrMethod);

/** @var mixed $bValue */
                $bValue = $this->extractValue($b, $propertyOrMethod);

return ($aValue <=> $bValue) * ($order === self::SORT_DESC ? -1 : 1);
            },
        );

return $collection;
    }

public function filter(callable $callback): CollectionInterface
    {
        $collection = clone $this;
        $collection->data = array_merge([], array_filter($collection->data, $callback));

return $collection;
    }

/**
     * {@inheritdoc}
     */
    public function where(string $propertyOrMethod, $value): CollectionInterface
    {
        return $this->filter(function ($item) use ($propertyOrMethod, $value) {
            /** @var mixed $accessorValue */
            $accessorValue = $this->extractValue($item, $propertyOrMethod);

return $accessorValue === $value;
        });
    }

public function map(callable $callback): CollectionInterface
    {
        return new Collection('mixed', array_map($callback, $this->data));
    }

public function diff(CollectionInterface $other): CollectionInterface
    {
        $this->compareCollectionTypes($other);

$diffAtoB = array_udiff($this->data, $other->toArray(), $this->getComparator());
        $diffBtoA = array_udiff($other->toArray(), $this->data, $this->getComparator());

/** @var array<array-key, T> $diff */
        $diff = array_merge($diffAtoB, $diffBtoA);

$collection = clone $this;
        $collection->data = $diff;

return $collection;
    }

public function intersect(CollectionInterface $other): CollectionInterface
    {
        $this->compareCollectionTypes($other);

/** @var array<array-key, T> $intersect */
        $intersect = array_uintersect($this->data, $other->toArray(), $this->getComparator());

$collection = clone $this;
        $collection->data = $intersect;

return $collection;
    }

public function merge(CollectionInterface ...$collections): CollectionInterface
    {
        $mergedCollection = clone $this;

foreach ($collections as $index => $collection) {
            if (!$collection instanceof static) {
                throw new CollectionMismatchException(
                    sprintf('Collection with index %d must be of type %s', $index, static::class),
                );
            }

// When using generics (Collection.php, Set.php, etc),
            // we also need to make sure that the internal types match each other
            if ($this->getUniformType($collection) !== $this->getUniformType($this)) {
                throw new CollectionMismatchException(
                    sprintf(
                        'Collection items in collection with index %d must be of type %s',
                        $index,
                        $this->getType(),
                    ),
                );
            }

foreach ($collection as $key => $value) {
                if (is_int($key)) {
                    $mergedCollection[] = $value;
                } else {
                    $mergedCollection[$key] = $value;
                }
            }
        }

return $mergedCollection;
    }

/**
     * @inheritDoc
     */
    public function unserialize($serialized): void
    {
        /** @var array<array-key, T> $data */
        $data = unserialize($serialized, ['allowed_classes' => [$this->getType()]]);

$this->data = $data;
    }

/**
     * @param CollectionInterface<T> $other
     */
    private function compareCollectionTypes(CollectionInterface $other): void
    {
        if (!$other instanceof static) {
            throw new CollectionMismatchException('Collection must be of type ' . static::class);
        }

// When using generics (Collection.php, Set.php, etc),
        // we also need to make sure that the internal types match each other
        if ($this->getUniformType($other) !== $this->getUniformType($this)) {
            throw new CollectionMismatchException('Collection items must be of type ' . $this->getType());
        }
    }

private function getComparator(): Closure
    {
        return /**
             * @param T $a
             * @param T $b
             */
            function ($a, $b): int {
                // If the two values are object, we convert them to unique scalars.
                // If the collection contains mixed values (unlikely) where some are objects
                // and some are not, we leave them as they are.
                // The comparator should still work and the result of $a < $b should
                // be consistent but unpredictable since not documented.
                if (is_object($a) && is_object($b)) {
                    $a = spl_object_id($a);
                    $b = spl_object_id($b);
                }

return $a === $b ? 0 : ($a < $b ? 1 : -1);
            };
    }

/**
     * @param CollectionInterface<mixed> $collection
     */
    private function getUniformType(CollectionInterface $collection): string
    {
        switch ($collection->getType()) {
            case 'integer':
                return 'int';
            case 'boolean':
                return 'bool';
            case 'double':
                return 'float';
            default:
                return $collection->getType();
        }
    }
}

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