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vendor/phootwork/lang/ComparableComparator.php

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+<?php declare(strict_types=1);
+/**
+ * This file is part of the Phootwork package.
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ *
+ * @license MIT License
+ * @copyright Thomas Gossmann
+ */
+namespace phootwork\lang;
+
+use InvalidArgumentException;
+
+/**
+ * Class ComparableComparator
+ *
+ * Comparator for objects implementing phootwork\lang\Comparable interface.
+ *
+ * @author Thomas Gossmann
+ */
+class ComparableComparator implements Comparator {
+	/**
+	 * @param mixed $a
+	 * @param mixed $b
+	 *
+	 * @throws InvalidArgumentException If the objects don't implement phootwork\lang\Comparable interface.
+	 *
+	 * @return int
+	 */
+	public function compare(mixed $a, mixed $b): int {
+		if (! $a instanceof Comparable) {
+			throw new InvalidArgumentException(
+				"ComparableComparator can compare only objects implementing phootwork\lang\Comparable interface"
+			);
+		}
+
+		return $a->compareTo($b);
+	}
+}