mirror of
https://github.com/rectorphp/rector.git
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207 lines
8.8 KiB
PHP
207 lines
8.8 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\Php80\NodeManipulator;
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use PhpParser\Node;
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use PhpParser\Node\Arg;
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use PhpParser\Node\Expr;
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use PhpParser\Node\Expr\Assign;
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use PhpParser\Node\Expr\BinaryOp;
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use PhpParser\Node\Expr\BinaryOp\BooleanOr;
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use PhpParser\Node\Expr\FuncCall;
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use PhpParser\Node\Expr\Instanceof_;
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use PhpParser\Node\Name\FullyQualified;
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use PHPStan\Type\Type;
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use Rector\Core\PhpParser\Comparing\NodeComparator;
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use Rector\Core\PhpParser\Node\BetterNodeFinder;
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use Rector\NodeNameResolver\NodeNameResolver;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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use Rector\NodeTypeResolver\NodeTypeResolver;
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use Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType;
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final class ResourceReturnToObject
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{
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/**
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* @readonly
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* @var \Rector\NodeNameResolver\NodeNameResolver
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*/
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private $nodeNameResolver;
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/**
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* @readonly
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* @var \Rector\NodeTypeResolver\NodeTypeResolver
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*/
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private $nodeTypeResolver;
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/**
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* @readonly
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* @var \Rector\Core\PhpParser\Node\BetterNodeFinder
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*/
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private $betterNodeFinder;
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/**
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* @readonly
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* @var \Rector\Core\PhpParser\Comparing\NodeComparator
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*/
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private $nodeComparator;
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public function __construct(\Rector\NodeNameResolver\NodeNameResolver $nodeNameResolver, \Rector\NodeTypeResolver\NodeTypeResolver $nodeTypeResolver, \Rector\Core\PhpParser\Node\BetterNodeFinder $betterNodeFinder, \Rector\Core\PhpParser\Comparing\NodeComparator $nodeComparator)
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{
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$this->nodeNameResolver = $nodeNameResolver;
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$this->nodeTypeResolver = $nodeTypeResolver;
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$this->betterNodeFinder = $betterNodeFinder;
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$this->nodeComparator = $nodeComparator;
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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* @param \PhpParser\Node\Expr\BinaryOp\BooleanOr|\PhpParser\Node\Expr\FuncCall $node
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* @return \PhpParser\Node\Expr\BinaryOp\BooleanOr|\PhpParser\Node\Expr\FuncCall|\PhpParser\Node\Expr\Instanceof_|null
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*/
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public function refactor($node, array $collectionFunctionToReturnObject)
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{
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if ($node instanceof \PhpParser\Node\Expr\FuncCall) {
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return $this->processFuncCall($node, $collectionFunctionToReturnObject);
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}
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return $this->processBooleanOr($node, $collectionFunctionToReturnObject);
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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*/
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private function processFuncCall(\PhpParser\Node\Expr\FuncCall $funcCall, array $collectionFunctionToReturnObject) : ?\PhpParser\Node\Expr\Instanceof_
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{
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$parent = $funcCall->getAttribute(\Rector\NodeTypeResolver\Node\AttributeKey::PARENT_NODE);
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if ($parent instanceof \PhpParser\Node\Expr\BinaryOp && !$parent instanceof \PhpParser\Node\Expr\BinaryOp\BooleanOr) {
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return null;
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}
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if ($this->shouldSkip($funcCall)) {
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return null;
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}
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$objectInstanceCheck = $this->resolveObjectInstanceCheck($funcCall, $collectionFunctionToReturnObject);
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if ($objectInstanceCheck === null) {
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return null;
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}
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/** @var Expr $argResourceValue */
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$argResourceValue = $funcCall->args[0]->value;
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return new \PhpParser\Node\Expr\Instanceof_($argResourceValue, new \PhpParser\Node\Name\FullyQualified($objectInstanceCheck));
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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*/
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private function resolveArgValueType(\PhpParser\Node\Expr\FuncCall $funcCall, array $collectionFunctionToReturnObject) : ?\PHPStan\Type\Type
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{
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/** @var Expr $argResourceValue */
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$argResourceValue = $funcCall->args[0]->value;
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$argValueType = $this->nodeTypeResolver->getType($argResourceValue);
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// if detected type is not FullyQualifiedObjectType, it still can be a resource to object, when:
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// - in the right position of BooleanOr, it be NeverType
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// - the object changed after init
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if (!$argValueType instanceof \Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType) {
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$argValueType = $this->resolveArgValueTypeFromPreviousAssign($funcCall, $argResourceValue, $collectionFunctionToReturnObject);
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}
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return $argValueType;
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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*/
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private function resolveObjectInstanceCheck(\PhpParser\Node\Expr\FuncCall $funcCall, array $collectionFunctionToReturnObject) : ?string
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{
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$argValueType = $this->resolveArgValueType($funcCall, $collectionFunctionToReturnObject);
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if (!$argValueType instanceof \Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType) {
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return null;
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}
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$className = $argValueType->getClassName();
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foreach ($collectionFunctionToReturnObject as $singleCollectionFunctionToReturnObject) {
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if ($className === $singleCollectionFunctionToReturnObject) {
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return $singleCollectionFunctionToReturnObject;
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}
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}
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return null;
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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*/
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private function resolveArgValueTypeFromPreviousAssign(\PhpParser\Node\Expr\FuncCall $funcCall, \PhpParser\Node\Expr $expr, array $collectionFunctionToReturnObject) : ?\Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType
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{
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$objectInstanceCheck = null;
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$assign = $this->betterNodeFinder->findFirstPreviousOfNode($funcCall, function (\PhpParser\Node $subNode) use(&$objectInstanceCheck, $expr, $collectionFunctionToReturnObject) : bool {
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if (!$this->isAssignWithFuncCallExpr($subNode)) {
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return \false;
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}
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/** @var Assign $subNode */
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if (!$this->nodeComparator->areNodesEqual($subNode->var, $expr)) {
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return \false;
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}
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foreach ($collectionFunctionToReturnObject as $key => $value) {
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if ($this->nodeNameResolver->isName($subNode->expr, $key)) {
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$objectInstanceCheck = $value;
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return \true;
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}
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}
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return \false;
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});
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if (!$assign instanceof \PhpParser\Node\Expr\Assign) {
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return null;
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}
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/** @var string $objectInstanceCheck */
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return new \Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType($objectInstanceCheck);
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}
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private function isAssignWithFuncCallExpr(\PhpParser\Node $node) : bool
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{
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if (!$node instanceof \PhpParser\Node\Expr\Assign) {
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return \false;
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}
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return $node->expr instanceof \PhpParser\Node\Expr\FuncCall;
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}
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/**
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* @param array<string, string> $collectionFunctionToReturnObject
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*/
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private function processBooleanOr(\PhpParser\Node\Expr\BinaryOp\BooleanOr $booleanOr, array $collectionFunctionToReturnObject) : ?\PhpParser\Node\Expr\Instanceof_
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{
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$left = $booleanOr->left;
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$right = $booleanOr->right;
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$funCall = null;
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$instanceof = null;
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if ($left instanceof \PhpParser\Node\Expr\FuncCall && $right instanceof \PhpParser\Node\Expr\Instanceof_) {
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$funCall = $left;
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$instanceof = $right;
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} elseif ($left instanceof \PhpParser\Node\Expr\Instanceof_ && $right instanceof \PhpParser\Node\Expr\FuncCall) {
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$funCall = $right;
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$instanceof = $left;
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} else {
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return null;
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}
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/** @var FuncCall $funCall */
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if ($this->shouldSkip($funCall)) {
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return null;
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}
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$objectInstanceCheck = $this->resolveObjectInstanceCheck($funCall, $collectionFunctionToReturnObject);
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if ($objectInstanceCheck === null) {
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return null;
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}
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/** @var Expr $argResourceValue */
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$argResourceValue = $funCall->args[0]->value;
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/** @var Instanceof_ $instanceof */
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if (!$this->isInstanceOfObjectCheck($instanceof, $argResourceValue, $objectInstanceCheck)) {
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return null;
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}
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return $instanceof;
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}
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private function isInstanceOfObjectCheck(\PhpParser\Node\Expr\Instanceof_ $instanceof, \PhpParser\Node\Expr $expr, string $objectInstanceCheck) : bool
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{
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if (!$instanceof->class instanceof \PhpParser\Node\Name\FullyQualified) {
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return \false;
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}
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if (!$this->nodeComparator->areNodesEqual($expr, $instanceof->expr)) {
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return \false;
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}
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return $this->nodeNameResolver->isName($instanceof->class, $objectInstanceCheck);
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}
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private function shouldSkip(\PhpParser\Node\Expr\FuncCall $funcCall) : bool
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{
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if (!$this->nodeNameResolver->isName($funcCall, 'is_resource')) {
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return \true;
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}
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if (!isset($funcCall->args[0])) {
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return \true;
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}
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$argResource = $funcCall->args[0];
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return !$argResource instanceof \PhpParser\Node\Arg;
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}
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}
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