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NewStaticToNewSelfRector.php
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<?php declare (strict_types=1); namespace Rector\CodeQuality\Rector\New_; use PhpParser\Node; use PhpParser\Node\Expr\New_; use PhpParser\Node\Name; use PhpParser\Node\Stmt\Class_; use Rector\Enum\ObjectReference; use Rector\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\CodeQuality\Rector\New_\NewStaticToNewSelfRector\NewStaticToNewSelfRectorTest */ final class NewStaticToNewSelfRector extends AbstractRector { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Change unsafe new static() to new self()', [new CodeSample(<<<'CODE_SAMPLE' final class SomeClass { public function build() { return new static(); } } CODE_SAMPLE , <<<'CODE_SAMPLE' final class SomeClass { public function build() { return new self(); } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [Class_::class]; } /** * @param Class_ $node */ public function refactor(Node $node) : ?Node { if (!$node->isFinal()) { return null; } $hasChanged = \false; $this->traverseNodesWithCallable($node, function (Node $node) use(&$hasChanged) : ?New_ { if (!$node instanceof New_) { return null; } if (!$this->isName($node->class, ObjectReference::STATIC)) { return null; } $hasChanged = \true; $node->class = new Name(ObjectReference::SELF); return $node; }); if ($hasChanged) { return $node; } return null; } }
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