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<?php declare (strict_types=1); namespace Rector\CodeQuality\Rector\Switch_; use PhpParser\Node; use PhpParser\Node\Expr\BinaryOp\Identical; use PhpParser\Node\Stmt\If_; use PhpParser\Node\Stmt\Switch_; use Rector\Core\Rector\AbstractRector; use Rector\Renaming\NodeManipulator\SwitchManipulator; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodeQuality\Rector\Switch_\SingularSwitchToIfRector\SingularSwitchToIfRectorTest */ final class SingularSwitchToIfRector extends AbstractRector { /** * @readonly * @var \Rector\Renaming\NodeManipulator\SwitchManipulator */ private $switchManipulator; public function __construct(SwitchManipulator $switchManipulator) { $this->switchManipulator = $switchManipulator; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Change switch with only 1 check to if', [new CodeSample(<<<'CODE_SAMPLE' class SomeObject { public function run($value) { $result = 1; switch ($value) { case 100: $result = 1000; } return $result; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeObject { public function run($value) { $result = 1; if ($value === 100) { $result = 1000; } return $result; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Switch_::class]; } /** * @param Switch_ $node * @return Node\Stmt[]|If_|null */ public function refactor(Node $node) { if (\count($node->cases) !== 1) { return null; } $onlyCase = $node->cases[0]; // only default → basically unwrap if ($onlyCase->cond === null) { return $onlyCase->stmts; } $if = new If_(new Identical($node->cond, $onlyCase->cond)); $if->stmts = $this->switchManipulator->removeBreakNodes($onlyCase->stmts); return $if; } }
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