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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Framework\View\Design\Fallback\Rule;
/**
* Composite Rules
*
* Composite rule that represents sequence of child fallback rules
*/
class Composite implements RuleInterface
{
/**
* Rules
*
* @var RuleInterface[]
*/
protected $rules = [];
/**
* Constructors
*
* @param RuleInterface[] $rules
* @throws \InvalidArgumentException
*/
public function __construct(array $rules)
{
foreach ($rules as $rule) {
if (!$rule instanceof RuleInterface) {
throw new \InvalidArgumentException('Each item should implement the fallback rule interface.');
}
}
$this->rules = $rules;
}
/**
* Retrieve sequentially combined directory patterns from child fallback rules
*
* @param array $params
* @return array
*/
public function getPatternDirs(array $params)
{
$result = [];
foreach ($this->rules as $rule) {
$result = array_merge($result, $rule->getPatternDirs($params));
}
return $result;
}
}