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opt / cpanel / ea-wappspector / vendor / rector / rector / rules / Php70 / Rector / FuncCall /

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?? RandomFunctionRector.php(2.96 KB)
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Editing: RandomFunctionRector.php

<?php

declare (strict_types=1);
namespace Rector\Php70\Rector\FuncCall;

use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Name;
use PhpParser\Node\Scalar\LNumber;
use Rector\PhpParser\Node\Value\ValueResolver;
use Rector\Rector\AbstractRector;
use Rector\ValueObject\PhpVersionFeature;
use Rector\VersionBonding\Contract\MinPhpVersionInterface;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
 * @see \Rector\Tests\Php70\Rector\FuncCall\RandomFunctionRector\RandomFunctionRectorTest
 */
final class RandomFunctionRector extends AbstractRector implements MinPhpVersionInterface
{
    /**
     * @readonly
     * @var \Rector\PhpParser\Node\Value\ValueResolver
     */
    private $valueResolver;
    /**
     * @var array<string, string>
     */
    private const OLD_TO_NEW_FUNCTION_NAMES = ['getrandmax' => 'mt_getrandmax', 'srand' => 'mt_srand', 'rand' => 'random_int'];
    public function __construct(ValueResolver $valueResolver)
    {
        $this->valueResolver = $valueResolver;
    }
    public function getRuleDefinition() : RuleDefinition
    {
        return new RuleDefinition('Changes rand, srand, and getrandmax to newer alternatives', [new CodeSample('rand();', 'random_int();')]);
    }
    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes() : array
    {
        return [FuncCall::class];
    }
    /**
     * @param FuncCall $node
     */
    public function refactor(Node $node) : ?\PhpParser\Node\Expr\FuncCall
    {
        if ($node->isFirstClassCallable()) {
            return null;
        }
        foreach (self::OLD_TO_NEW_FUNCTION_NAMES as $oldFunctionName => $newFunctionName) {
            if ($this->isName($node, $oldFunctionName)) {
                $node->name = new Name($newFunctionName);
                // special case: random_int(); → random_int(0, getrandmax());
                if ($newFunctionName === 'random_int') {
                    $args = $node->getArgs();
                    if ($args === []) {
                        $node->args[0] = new Arg(new LNumber(0));
                        $node->args[1] = new Arg($this->nodeFactory->createFuncCall('mt_getrandmax'));
                    } elseif (\count($args) === 2) {
                        $minValue = $this->valueResolver->getValue($args[0]->value);
                        $maxValue = $this->valueResolver->getValue($args[1]->value);
                        if (\is_int($minValue) && \is_int($maxValue) && $minValue > $maxValue) {
                            $temp = $node->args[0];
                            $node->args[0] = $node->args[1];
                            $node->args[1] = $temp;
                        }
                    }
                }
                return $node;
            }
        }
        return null;
    }
    public function provideMinPhpVersion() : int
    {
        return PhpVersionFeature::CSPRNG_FUNCTIONS;
    }
}

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