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<?php declare (strict_types=1); namespace Rector\CodeQuality\Rector\Ternary; use PhpParser\Node; use PhpParser\Node\Expr\BinaryOp\Identical; use PhpParser\Node\Expr\BinaryOp\NotIdentical; use PhpParser\Node\Expr\Ternary; use Rector\Core\NodeManipulator\BinaryOpManipulator; use Rector\Core\Rector\AbstractRector; use Rector\Php71\ValueObject\TwoNodeMatch; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodeQuality\Rector\Ternary\SimplifyTautologyTernaryRector\SimplifyTautologyTernaryRectorTest */ final class SimplifyTautologyTernaryRector extends AbstractRector { /** * @readonly * @var \Rector\Core\NodeManipulator\BinaryOpManipulator */ private $binaryOpManipulator; public function __construct(BinaryOpManipulator $binaryOpManipulator) { $this->binaryOpManipulator = $binaryOpManipulator; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Simplify tautology ternary to value', [new CodeSample('$value = ($fullyQualifiedTypeHint !== $typeHint) ? $fullyQualifiedTypeHint : $typeHint;', '$value = $fullyQualifiedTypeHint;')]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Ternary::class]; } /** * @param Ternary $node */ public function refactor(Node $node) : ?Node { if (!$node->cond instanceof NotIdentical && !$node->cond instanceof Identical) { return null; } $twoNodeMatch = $this->binaryOpManipulator->matchFirstAndSecondConditionNode($node->cond, function (Node $leftNode) use($node) : bool { return $this->nodeComparator->areNodesEqual($leftNode, $node->if); }, function (Node $leftNode) use($node) : bool { return $this->nodeComparator->areNodesEqual($leftNode, $node->else); }); if (!$twoNodeMatch instanceof TwoNodeMatch) { return null; } return $node->if; } }
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