rector/rules/CodeQuality/Rector/Ternary/SwitchNegatedTernaryRector.php

<?php

declare (strict_types=1);
namespace Rector\CodeQuality\Rector\Ternary;

use PhpParser\Node;
use PhpParser\Node\Expr\BooleanNot;
use PhpParser\Node\Expr\Ternary;
use Rector\Core\PhpParser\Node\Value\TernaryBracketWrapper;
use Rector\Core\Rector\AbstractRector;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
 * @see \Rector\Tests\CodeQuality\Rector\Ternary\SwitchNegatedTernaryRector\SwitchNegatedTernaryRectorTest
 */
final class SwitchNegatedTernaryRector extends \Rector\Core\Rector\AbstractRector
{
    /**
     * @var \Rector\Core\PhpParser\Node\Value\TernaryBracketWrapper
     */
    private $ternaryBracketWrapper;
    public function __construct(\Rector\Core\PhpParser\Node\Value\TernaryBracketWrapper $ternaryBracketWrapper)
    {
        $this->ternaryBracketWrapper = $ternaryBracketWrapper;
    }
    public function getRuleDefinition() : \Symplify\RuleDocGenerator\ValueObject\RuleDefinition
    {
        return new \Symplify\RuleDocGenerator\ValueObject\RuleDefinition('Switch negated ternary condition rector', [new \Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
    public function run(bool $upper, string $name)
    {
        return ! $upper
            ? $name
            : strtoupper($name);
    }
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
    public function run(bool $upper, string $name)
    {
        return $upper
            ? strtoupper($name)
            : $name;
    }
}
CODE_SAMPLE
)]);
    }
    /**
     * @return array<class-string<Node>>
     */
    public function getNodeTypes() : array
    {
        return [\PhpParser\Node\Expr\Ternary::class];
    }
    /**
     * @param Ternary $node
     */
    public function refactor(\PhpParser\Node $node) : ?\PhpParser\Node
    {
        if (!$node->cond instanceof \PhpParser\Node\Expr\BooleanNot) {
            return null;
        }
        if ($node->if === null) {
            return null;
        }
        $node->cond = $node->cond->expr;
        [$node->if, $node->else] = [$node->else, $node->if];
        if ($node->if instanceof \PhpParser\Node\Expr\Ternary) {
            $this->ternaryBracketWrapper->wrapWithBracket($node->if);
        }
        return $node;
    }
}