%PDF-
%PDF-
Mini Shell
Mini Shell
<?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\Core\Rector\AbstractRector;
use Rector\Core\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
{
/**
* @var array<string, string>
*/
private const OLD_TO_NEW_FUNCTION_NAMES = ['getrandmax' => 'mt_getrandmax', 'srand' => 'mt_srand', 'mt_rand' => 'random_int', 'rand' => 'random_int'];
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Changes rand, srand and getrandmax by new mt_* alternatives.', [new CodeSample('rand();', 'mt_rand();')]);
}
/**
* @return array<class-string<Node>>
*/
public function getNodeTypes() : array
{
return [FuncCall::class];
}
/**
* @param FuncCall $node
*/
public function refactor(Node $node) : ?\PhpParser\Node\Expr\FuncCall
{
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' && $node->args === []) {
$node->args[0] = new Arg(new LNumber(0));
$node->args[1] = new Arg($this->nodeFactory->createFuncCall('mt_getrandmax'));
}
return $node;
}
}
return null;
}
public function provideMinPhpVersion() : int
{
return PhpVersionFeature::CSPRNG_FUNCTIONS;
}
}
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