Viewing file:  PhpAstExtractor.php (2.7 KB) -rw-r--r--
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Translation\Extractor;
use PhpParser\NodeTraverser;
use PhpParser\NodeVisitor;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Translation\Extractor\Visitor\AbstractVisitor;
use Symfony\Component\Translation\MessageCatalogue;
/**
* PhpAstExtractor extracts translation messages from a PHP AST.
*
* @author Mathieu Santostefano <msantostefano@protonmail.com>
*/
final class PhpAstExtractor extends AbstractFileExtractor implements ExtractorInterface
{
private Parser $parser;
public function __construct(
/**
* @param iterable<AbstractVisitor&NodeVisitor> $visitors
*/
private readonly iterable $visitors,
private string $prefix = '',
) {
if (!class_exists(ParserFactory::class)) {
throw new \LogicException(sprintf('You cannot use "%s" as the "nikic/php-parser" package is not installed. Try running "composer require nikic/php-parser".', static::class));
}
$this->parser = (new ParserFactory())->create(ParserFactory::PREFER_PHP7);
}
public function extract(iterable|string $resource, MessageCatalogue $catalogue): void
{
foreach ($this->extractFiles($resource) as $file) {
$traverser = new NodeTraverser();
/** @var AbstractVisitor&NodeVisitor $visitor */
foreach ($this->visitors as $visitor) {
$visitor->initialize($catalogue, $file, $this->prefix);
$traverser->addVisitor($visitor);
}
$nodes = $this->parser->parse(file_get_contents($file));
$traverser->traverse($nodes);
}
}
public function setPrefix(string $prefix): void
{
$this->prefix = $prefix;
}
protected function canBeExtracted(string $file): bool
{
return 'php' === pathinfo($file, \PATHINFO_EXTENSION)
&& $this->isFile($file)
&& preg_match('/\bt\(|->trans\(|TranslatableMessage|Symfony\\\\Component\\\\Validator\\\\Constraints/i', file_get_contents($file));
}
protected function extractFromDirectory(array|string $resource): iterable|Finder
{
if (!class_exists(Finder::class)) {
throw new \LogicException(sprintf('You cannot use "%s" as the "symfony/finder" package is not installed. Try running "composer require symfony/finder".', static::class));
}
return (new Finder())->files()->name('*.php')->in($resource);
}
}
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