<?php

declare (strict_types=1);
/*
 * This file is part of PHP CS Fixer.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */
namespace PhpCsFixer\Tokenizer\Transformer;

use PhpCsFixer\Tokenizer\AbstractTransformer;
use PhpCsFixer\Tokenizer\CT;
use PhpCsFixer\Tokenizer\Token;
use PhpCsFixer\Tokenizer\Tokens;
/**
 * Transform `class` class' constant from T_CLASS into CT::T_CLASS_CONSTANT.
 *
 * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
 *
 * @internal
 */
final class ClassConstantTransformer extends AbstractTransformer
{
    public function getRequiredPhpVersionId() : int
    {
        return 50500;
    }
    public function process(Tokens $tokens, Token $token, int $index) : void
    {
        if (!$token->equalsAny([[\T_CLASS, 'class'], [\T_STRING, 'class']], \false)) {
            return;
        }
        $prevIndex = $tokens->getPrevMeaningfulToken($index);
        $prevToken = $tokens[$prevIndex];
        if ($prevToken->isGivenKind(\T_DOUBLE_COLON)) {
            $tokens[$index] = new Token([CT::T_CLASS_CONSTANT, $token->getContent()]);
        }
    }
    public function getCustomTokens() : array
    {
        return [CT::T_CLASS_CONSTANT];
    }
}
