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<?php declare (strict_types=1); namespace Rector\Privatization\Rector\MethodCall; use PhpParser\Node; use PhpParser\Node\Expr\MethodCall; use PhpParser\Node\Expr\PropertyFetch; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Stmt\Class_; use PhpParser\Node\Stmt\ClassMethod; use PhpParser\Node\Stmt\Return_; use Rector\Core\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\Privatization\Rector\MethodCall\PrivatizeLocalGetterToPropertyRector\PrivatizeLocalGetterToPropertyRectorTest */ final class PrivatizeLocalGetterToPropertyRector extends AbstractRector { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Privatize getter of local property to property', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { private $some; public function run() { return $this->getSome() + 5; } private function getSome() { return $this->some; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { private $some; public function run() { return $this->some + 5; } private function getSome() { return $this->some; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [MethodCall::class]; } /** * @param MethodCall $node */ public function refactor(Node $node) : ?Node { if (!$node->var instanceof Variable) { return null; } if (!$this->nodeNameResolver->isName($node->var, 'this')) { return null; } $classLike = $this->betterNodeFinder->findParentType($node, Class_::class); if (!$classLike instanceof Class_) { return null; } $methodName = $this->getName($node->name); if ($methodName === null) { return null; } $classMethod = $classLike->getMethod($methodName); if (!$classMethod instanceof ClassMethod) { return null; } return $this->matchLocalPropertyFetchInGetterMethod($classMethod); } private function matchLocalPropertyFetchInGetterMethod(ClassMethod $classMethod) : ?PropertyFetch { $stmts = (array) $classMethod->stmts; if (\count($stmts) !== 1) { return null; } $onlyStmt = $stmts[0] ?? null; if (!$onlyStmt instanceof Return_) { return null; } $returnedExpr = $onlyStmt->expr; if (!$returnedExpr instanceof PropertyFetch) { return null; } return $returnedExpr; } }
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