Viewing file:  ArrayCollection.php (8.8 KB) -rw-r--r--
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<?php
namespace Doctrine\Common\Collections;
use ArrayIterator;
use Closure;
use Doctrine\Common\Collections\Expr\ClosureExpressionVisitor;
use const ARRAY_FILTER_USE_BOTH;
use function array_filter;
use function array_key_exists;
use function array_keys;
use function array_map;
use function array_reverse;
use function array_search;
use function array_slice;
use function array_values;
use function count;
use function current;
use function end;
use function in_array;
use function key;
use function next;
use function reset;
use function spl_object_hash;
use function uasort;
/**
* An ArrayCollection is a Collection implementation that wraps a regular PHP array.
*
* Warning: Using (un-)serialize() on a collection is not a supported use-case
* and may break when we change the internals in the future. If you need to
* serialize a collection use {@link toArray()} and reconstruct the collection
* manually.
*
* @phpstan-template TKey
* @psalm-template TKey of array-key
* @psalm-template T
* @template-implements Collection<TKey,T>
* @template-implements Selectable<TKey,T>
*/
class ArrayCollection implements Collection, Selectable
{
/**
* An array containing the entries of this collection.
*
* @psalm-var array<TKey,T>
* @var array
*/
private $elements;
/**
* Initializes a new ArrayCollection.
*
* @param array $elements
*
* @psalm-param array<TKey,T> $elements
*/
public function __construct(array $elements = [])
{
$this->elements = $elements;
}
/**
* {@inheritDoc}
*/
public function toArray()
{
return $this->elements;
}
/**
* {@inheritDoc}
*/
public function first()
{
return reset($this->elements);
}
/**
* Creates a new instance from the specified elements.
*
* This method is provided for derived classes to specify how a new
* instance should be created when constructor semantics have changed.
*
* @param array $elements Elements.
*
* @return static
*
* @psalm-param array<TKey,T> $elements
* @psalm-return static<TKey,T>
*/
protected function createFrom(array $elements)
{
return new static($elements);
}
/**
* {@inheritDoc}
*/
public function last()
{
return end($this->elements);
}
/**
* {@inheritDoc}
*/
public function key()
{
return key($this->elements);
}
/**
* {@inheritDoc}
*/
public function next()
{
return next($this->elements);
}
/**
* {@inheritDoc}
*/
public function current()
{
return current($this->elements);
}
/**
* {@inheritDoc}
*/
public function remove($key)
{
if (! isset($this->elements[$key]) && ! array_key_exists($key, $this->elements)) {
return null;
}
$removed = $this->elements[$key];
unset($this->elements[$key]);
return $removed;
}
/**
* {@inheritDoc}
*/
public function removeElement($element)
{
$key = array_search($element, $this->elements, true);
if ($key === false) {
return false;
}
unset($this->elements[$key]);
return true;
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*
* @psalm-param TKey $offset
*/
public function offsetExists($offset)
{
return $this->containsKey($offset);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*
* @psalm-param TKey $offset
*/
public function offsetGet($offset)
{
return $this->get($offset);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*/
public function offsetSet($offset, $value)
{
if (! isset($offset)) {
$this->add($value);
return;
}
$this->set($offset, $value);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*
* @psalm-param TKey $offset
*/
public function offsetUnset($offset)
{
$this->remove($offset);
}
/**
* {@inheritDoc}
*/
public function containsKey($key)
{
return isset($this->elements[$key]) || array_key_exists($key, $this->elements);
}
/**
* {@inheritDoc}
*/
public function contains($element)
{
return in_array($element, $this->elements, true);
}
/**
* {@inheritDoc}
*/
public function exists(Closure $p)
{
foreach ($this->elements as $key => $element) {
if ($p($key, $element)) {
return true;
}
}
return false;
}
/**
* {@inheritDoc}
*/
public function indexOf($element)
{
return array_search($element, $this->elements, true);
}
/**
* {@inheritDoc}
*/
public function get($key)
{
return $this->elements[$key] ?? null;
}
/**
* {@inheritDoc}
*/
public function getKeys()
{
return array_keys($this->elements);
}
/**
* {@inheritDoc}
*/
public function getValues()
{
return array_values($this->elements);
}
/**
* {@inheritDoc}
*/
public function count()
{
return count($this->elements);
}
/**
* {@inheritDoc}
*/
public function set($key, $value)
{
$this->elements[$key] = $value;
}
/**
* {@inheritDoc}
*
* @psalm-suppress InvalidPropertyAssignmentValue
*
* This breaks assumptions about the template type, but it would
* be a backwards-incompatible change to remove this method
*/
public function add($element)
{
$this->elements[] = $element;
return true;
}
/**
* {@inheritDoc}
*/
public function isEmpty()
{
return empty($this->elements);
}
/**
* Required by interface IteratorAggregate.
*
* {@inheritDoc}
*/
public function getIterator()
{
return new ArrayIterator($this->elements);
}
/**
* {@inheritDoc}
*
* @return static
*
* @psalm-template U
* @psalm-param Closure(T=):U $func
* @psalm-return static<TKey, U>
*/
public function map(Closure $func)
{
return $this->createFrom(array_map($func, $this->elements));
}
/**
* {@inheritDoc}
*
* @return static
*
* @psalm-return static<TKey,T>
*/
public function filter(Closure $p)
{
return $this->createFrom(array_filter($this->elements, $p, ARRAY_FILTER_USE_BOTH));
}
/**
* {@inheritDoc}
*/
public function forAll(Closure $p)
{
foreach ($this->elements as $key => $element) {
if (! $p($key, $element)) {
return false;
}
}
return true;
}
/**
* {@inheritDoc}
*/
public function partition(Closure $p)
{
$matches = $noMatches = [];
foreach ($this->elements as $key => $element) {
if ($p($key, $element)) {
$matches[$key] = $element;
} else {
$noMatches[$key] = $element;
}
}
return [$this->createFrom($matches), $this->createFrom($noMatches)];
}
/**
* Returns a string representation of this object.
*
* @return string
*/
public function __toString()
{
return self::class . '@' . spl_object_hash($this);
}
/**
* {@inheritDoc}
*/
public function clear()
{
$this->elements = [];
}
/**
* {@inheritDoc}
*/
public function slice($offset, $length = null)
{
return array_slice($this->elements, $offset, $length, true);
}
/**
* {@inheritDoc}
*/
public function matching(Criteria $criteria)
{
$expr = $criteria->getWhereExpression();
$filtered = $this->elements;
if ($expr) {
$visitor = new ClosureExpressionVisitor();
$filter = $visitor->dispatch($expr);
$filtered = array_filter($filtered, $filter);
}
$orderings = $criteria->getOrderings();
if ($orderings) {
$next = null;
foreach (array_reverse($orderings) as $field => $ordering) {
$next = ClosureExpressionVisitor::sortByField($field, $ordering === Criteria::DESC ? -1 : 1, $next);
}
uasort($filtered, $next);
}
$offset = $criteria->getFirstResult();
$length = $criteria->getMaxResults();
if ($offset || $length) {
$filtered = array_slice($filtered, (int) $offset, $length);
}
return $this->createFrom($filtered);
}
}
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