NameResolvingParser.php

<?php

declare(strict_types=1);

namespace Roave\BetterReflection\SourceLocator\Ast\Parser;

use PhpParser\ErrorHandler;
use PhpParser\NodeTraverser;
use PhpParser\NodeTraverserInterface;
use PhpParser\NodeVisitor\NameResolver;
use PhpParser\Parser;
use function array_key_exists;
use function hash;
use function strlen;

/**
 * @internal
 */
final class NameResolvingParser implements Parser
{
    /** @var NodeTraverserInterface */
    private $traverser;

    /** @var Parser */
    private $wrappedParser;

    public function __construct(Parser $wrappedParser)
    {
        $this->wrappedParser = $wrappedParser;
        $this->traverser     = new NodeTraverser();

        $this->traverser->addVisitor(new NameResolver());
    }

    /**
     * {@inheritDoc}
     *
     * @phpcsSuppress SlevomatCodingStandard.TypeHints.TypeHintDeclaration.MissingParameterTypeHint
     */
    public function parse($code, ?ErrorHandler $errorHandler = null) : ?array
    {
        $ast = $this->wrappedParser->parse($code, $errorHandler);

        $this->traverser->traverse($ast);

        return $ast;
    }
}