40 lines
977 B
PHP
40 lines
977 B
PHP
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<?php declare(strict_types=1);
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/**
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* This file is part of the Phootwork package.
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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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* @license MIT License
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* @copyright Thomas Gossmann
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*/
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namespace phootwork\lang;
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use InvalidArgumentException;
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/**
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* Class ComparableComparator
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*
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* Comparator for objects implementing phootwork\lang\Comparable interface.
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*
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* @author Thomas Gossmann
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*/
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class ComparableComparator implements Comparator {
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/**
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* @param mixed $a
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* @param mixed $b
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*
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* @throws InvalidArgumentException If the objects don't implement phootwork\lang\Comparable interface.
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*
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* @return int
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*/
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public function compare(mixed $a, mixed $b): int {
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if (! $a instanceof Comparable) {
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throw new InvalidArgumentException(
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"ComparableComparator can compare only objects implementing phootwork\lang\Comparable interface"
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);
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}
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return $a->compareTo($b);
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}
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}
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