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<?php declare (strict_types=1); namespace Rector\DeadCode\Rector\ClassMethod; use PhpParser\Node; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Stmt\Class_; use PhpParser\Node\Stmt\ClassMethod; use Rector\Core\NodeManipulator\PropertyManipulator; use Rector\Core\PhpParser\NodeFinder\PropertyFetchFinder; use Rector\Core\Rector\AbstractRector; use Rector\Core\ValueObject\MethodName; use Rector\Core\ValueObject\PhpVersionFeature; use Rector\Core\ValueObject\Visibility; use Rector\Privatization\NodeManipulator\VisibilityManipulator; use Rector\VersionBonding\Contract\MinPhpVersionInterface; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\DeadCode\Rector\ClassMethod\RemoveUnusedPromotedPropertyRector\RemoveUnusedPromotedPropertyRectorTest */ final class RemoveUnusedPromotedPropertyRector extends AbstractRector implements MinPhpVersionInterface { /** * @readonly * @var \Rector\Core\PhpParser\NodeFinder\PropertyFetchFinder */ private $propertyFetchFinder; /** * @readonly * @var \Rector\Core\NodeManipulator\PropertyManipulator */ private $propertyManipulator; /** * @readonly * @var \Rector\Privatization\NodeManipulator\VisibilityManipulator */ private $visibilityManipulator; public function __construct(PropertyFetchFinder $propertyFetchFinder, PropertyManipulator $propertyManipulator, VisibilityManipulator $visibilityManipulator) { $this->propertyFetchFinder = $propertyFetchFinder; $this->propertyManipulator = $propertyManipulator; $this->visibilityManipulator = $visibilityManipulator; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Remove unused promoted property', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function __construct( private $someUnusedDependency, private $usedDependency ) { } public function getUsedDependency() { return $this->usedDependency; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function __construct( private $usedDependency ) { } public function getUsedDependency() { return $this->usedDependency; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [ClassMethod::class]; } /** * @param ClassMethod $node */ public function refactor(Node $node) : ?Node { $hasRemovedProperty = \false; if (!$this->isName($node, MethodName::CONSTRUCT)) { return null; } $class = $this->betterNodeFinder->findParentType($node, Class_::class); if (!$class instanceof Class_) { return null; } foreach ($node->getParams() as $param) { // only private local scope; removing public property might be dangerous if (!$this->visibilityManipulator->hasVisibility($param, Visibility::PRIVATE)) { continue; } if ($this->propertyManipulator->isPropertyUsedInReadContext($class, $param)) { continue; } $paramName = $this->getName($param); $propertyFetches = $this->propertyFetchFinder->findLocalPropertyFetchesByName($class, $paramName); if ($propertyFetches !== []) { continue; } // is variable used? only remove property, keep param $variable = $this->betterNodeFinder->findVariableOfName((array) $node->stmts, $paramName); if ($variable instanceof Variable) { $param->flags = 0; continue; } // remove param $this->removeNode($param); $hasRemovedProperty = \true; } if ($hasRemovedProperty) { return $node; } return null; } public function provideMinPhpVersion() : int { return PhpVersionFeature::PROPERTY_PROMOTION; } }
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