1 files changed, 142 insertions, 0 deletions
diff --git a/vendor/sebastian/comparator/src/Factory.php b/vendor/sebastian/comparator/src/Factory.php
new file mode 100644
index 000000000..5b16366f0
--- /dev/null
+++ b/vendor/sebastian/comparator/src/Factory.php
@@ -0,0 +1,142 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+use function array_unshift;
+
+/**
+ * Factory for comparators which compare values for equality.
+ */
+class Factory
+{
+    /**
+     * @var Factory
+     */
+    private static $instance;
+
+    /**
+     * @var Comparator[]
+     */
+    private $customComparators = [];
+
+    /**
+     * @var Comparator[]
+     */
+    private $defaultComparators = [];
+
+    /**
+     * @return Factory
+     */
+    public static function getInstance()
+    {
+        if (self::$instance === null) {
+            self::$instance = new self; // @codeCoverageIgnore
+        }
+
+        return self::$instance;
+    }
+
+    /**
+     * Constructs a new factory.
+     */
+    public function __construct()
+    {
+        $this->registerDefaultComparators();
+    }
+
+    /**
+     * Returns the correct comparator for comparing two values.
+     *
+     * @param mixed $expected The first value to compare
+     * @param mixed $actual   The second value to compare
+     *
+     * @return Comparator
+     */
+    public function getComparatorFor($expected, $actual)
+    {
+        foreach ($this->customComparators as $comparator) {
+            if ($comparator->accepts($expected, $actual)) {
+                return $comparator;
+            }
+        }
+
+        foreach ($this->defaultComparators as $comparator) {
+            if ($comparator->accepts($expected, $actual)) {
+                return $comparator;
+            }
+        }
+
+        throw new RuntimeException('No suitable Comparator implementation found');
+    }
+
+    /**
+     * Registers a new comparator.
+     *
+     * This comparator will be returned by getComparatorFor() if its accept() method
+     * returns TRUE for the compared values. It has higher priority than the
+     * existing comparators, meaning that its accept() method will be invoked
+     * before those of the other comparators.
+     *
+     * @param Comparator $comparator The comparator to be registered
+     */
+    public function register(Comparator $comparator)/*: void*/
+    {
+        array_unshift($this->customComparators, $comparator);
+
+        $comparator->setFactory($this);
+    }
+
+    /**
+     * Unregisters a comparator.
+     *
+     * This comparator will no longer be considered by getComparatorFor().
+     *
+     * @param Comparator $comparator The comparator to be unregistered
+     */
+    public function unregister(Comparator $comparator)/*: void*/
+    {
+        foreach ($this->customComparators as $key => $_comparator) {
+            if ($comparator === $_comparator) {
+                unset($this->customComparators[$key]);
+            }
+        }
+    }
+
+    /**
+     * Unregisters all non-default comparators.
+     */
+    public function reset()/*: void*/
+    {
+        $this->customComparators = [];
+    }
+
+    private function registerDefaultComparators(): void
+    {
+        $this->registerDefaultComparator(new MockObjectComparator);
+        $this->registerDefaultComparator(new DateTimeComparator);
+        $this->registerDefaultComparator(new DOMNodeComparator);
+        $this->registerDefaultComparator(new SplObjectStorageComparator);
+        $this->registerDefaultComparator(new ExceptionComparator);
+        $this->registerDefaultComparator(new ObjectComparator);
+        $this->registerDefaultComparator(new ResourceComparator);
+        $this->registerDefaultComparator(new ArrayComparator);
+        $this->registerDefaultComparator(new DoubleComparator);
+        $this->registerDefaultComparator(new NumericComparator);
+        $this->registerDefaultComparator(new ScalarComparator);
+        $this->registerDefaultComparator(new TypeComparator);
+    }
+
+    private function registerDefaultComparator(Comparator $comparator): void
+    {
+        $this->defaultComparators[] = $comparator;
+
+        $comparator->setFactory($this);
+    }
+}