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<?php declare (strict_types=1); namespace Rector\ReadWrite\ParentNodeReadAnalyzer; use PhpParser\Node; use PhpParser\Node\Expr; use PhpParser\Node\Expr\ArrayDimFetch; use PhpParser\Node\Expr\Assign; use Rector\Core\PhpParser\Node\BetterNodeFinder; use Rector\ReadWrite\Contract\ParentNodeReadAnalyzerInterface; final class ArrayDimFetchParentNodeReadAnalyzer implements ParentNodeReadAnalyzerInterface { /** * @readonly * @var \Rector\Core\PhpParser\Node\BetterNodeFinder */ private $betterNodeFinder; public function __construct(BetterNodeFinder $betterNodeFinder) { $this->betterNodeFinder = $betterNodeFinder; } public function isRead(Expr $expr, Node $parentNode) : bool { if (!$parentNode instanceof ArrayDimFetch) { return \false; } if ($parentNode->dim !== $expr) { return \false; } // is left part of assign return $this->isLeftPartOfAssign($expr); } private function isLeftPartOfAssign(Expr $expr) : bool { $parentAssign = $this->betterNodeFinder->findParentType($expr, Assign::class); if (!$parentAssign instanceof Assign) { return \true; } return !(bool) $this->betterNodeFinder->findFirst($parentAssign->var, static function (Node $node) use($expr) : bool { return $node === $expr; }); } }
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