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114
vendor/sebastian/comparator/src/Factory.php
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114
vendor/sebastian/comparator/src/Factory.php
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<?php declare(strict_types=1);
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/*
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* This file is part of sebastian/comparator.
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*
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* (c) Sebastian Bergmann <sebastian@phpunit.de>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace SebastianBergmann\Comparator;
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use function array_unshift;
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final class Factory
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{
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private static ?Factory $instance = null;
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/**
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* @var list<Comparator>
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*/
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private array $customComparators = [];
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/**
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* @var list<Comparator>
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*/
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private array $defaultComparators = [];
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public static function getInstance(): self
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{
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if (self::$instance === null) {
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self::$instance = new self; // @codeCoverageIgnore
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}
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return self::$instance;
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}
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public function __construct()
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{
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$this->registerDefaultComparators();
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}
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public function getComparatorFor(mixed $expected, mixed $actual): Comparator
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{
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foreach ($this->customComparators as $comparator) {
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if ($comparator->accepts($expected, $actual)) {
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return $comparator;
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}
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}
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foreach ($this->defaultComparators as $comparator) {
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if ($comparator->accepts($expected, $actual)) {
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return $comparator;
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}
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}
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throw new RuntimeException('No suitable Comparator implementation found');
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}
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/**
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* Registers a new comparator.
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*
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* This comparator will be returned by getComparatorFor() if its accept() method
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* returns TRUE for the compared values. It has higher priority than the
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* existing comparators, meaning that its accept() method will be invoked
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* before those of the other comparators.
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*/
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public function register(Comparator $comparator): void
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{
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array_unshift($this->customComparators, $comparator);
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$comparator->setFactory($this);
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}
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/**
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* Unregisters a comparator.
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*
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* This comparator will no longer be considered by getComparatorFor().
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*/
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public function unregister(Comparator $comparator): void
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{
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foreach ($this->customComparators as $key => $_comparator) {
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if ($comparator === $_comparator) {
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unset($this->customComparators[$key]);
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}
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}
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}
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public function reset(): void
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{
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$this->customComparators = [];
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}
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private function registerDefaultComparators(): void
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{
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$this->registerDefaultComparator(new MockObjectComparator);
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$this->registerDefaultComparator(new DateTimeComparator);
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$this->registerDefaultComparator(new DOMNodeComparator);
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$this->registerDefaultComparator(new SplObjectStorageComparator);
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$this->registerDefaultComparator(new ExceptionComparator);
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$this->registerDefaultComparator(new ObjectComparator);
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$this->registerDefaultComparator(new ResourceComparator);
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$this->registerDefaultComparator(new ArrayComparator);
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$this->registerDefaultComparator(new NumericComparator);
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$this->registerDefaultComparator(new ScalarComparator);
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$this->registerDefaultComparator(new TypeComparator);
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}
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private function registerDefaultComparator(Comparator $comparator): void
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{
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$this->defaultComparators[] = $comparator;
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$comparator->setFactory($this);
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}
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}
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