<?php

/*

* This file is part of the Symfony package.

*

* (c) Fabien Potencier <[email protected]>

*

* For the full copyright and license information, please view the LICENSE

* file that was distributed with this source code.

*/

namespace Symfony\Component\Translation\Loader;

use Symfony\Component\Translation\Exception\InvalidResourceException;

use Symfony\Component\Translation\Exception\LogicException;

use Symfony\Component\Yaml\Exception\ParseException;

use Symfony\Component\Yaml\Parser as YamlParser;

use Symfony\Component\Yaml\Yaml;

/**

* YamlFileLoader loads translations from Yaml files.

*

* @author Fabien Potencier <[email protected]>

*/

class YamlFileLoader extends FileLoader

{

private YamlParser $yamlParser;

protected function loadResource(string $resource): array

{

if (!isset($this->yamlParser)) {

if (!class_exists(YamlParser::class)) {

throw new LogicException('Loading translations from the YAML format requires the Symfony Yaml component.');

}

$this->yamlParser = new YamlParser();

}

try {

$messages = $this->yamlParser->parseFile($resource, Yaml::PARSE_CONSTANT);

} catch (ParseException $e) {

throw new InvalidResourceException(\sprintf('The file "%s" does not contain valid YAML: ', $resource).$e->getMessage(), 0, $e);

}

if (null !== $messages && !\is_array($messages)) {

throw new InvalidResourceException(\sprintf('Unable to load file "%s".', $resource));

}

return $messages ?: [];

}

}