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f7bb838601
f0425bc3cb
Improve scope, PHPStan extension types (#2747)
194 lines
7.3 KiB
PHP
194 lines
7.3 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\TypeDeclaration\TypeInferer\ParamTypeInferer;
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use RectorPrefix202208\Nette\Utils\Strings;
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use PhpParser\Node\Expr\Array_;
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use PhpParser\Node\Expr\ArrayItem;
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use PhpParser\Node\Expr\Yield_;
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use PhpParser\Node\FunctionLike;
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use PhpParser\Node\Param;
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use PhpParser\Node\Stmt\Class_;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Return_;
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use PHPStan\PhpDocParser\Ast\PhpDoc\GenericTagValueNode;
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use PHPStan\PhpDocParser\Ast\PhpDoc\PhpDocTagNode;
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use PHPStan\Type\Constant\ConstantArrayType;
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use PHPStan\Type\MixedType;
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use PHPStan\Type\Type;
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use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfo;
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use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
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use Rector\Core\Exception\ShouldNotHappenException;
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use Rector\Core\PhpParser\Node\BetterNodeFinder;
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use Rector\NodeTypeResolver\Node\AttributeKey;
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use Rector\NodeTypeResolver\NodeTypeResolver;
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use Rector\NodeTypeResolver\PHPStan\Type\TypeFactory;
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use Rector\TypeDeclaration\Contract\TypeInferer\ParamTypeInfererInterface;
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use RectorPrefix202208\Symfony\Contracts\Service\Attribute\Required;
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final class PHPUnitDataProviderParamTypeInferer implements ParamTypeInfererInterface
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{
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/**
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* @see https://regex101.com/r/hW09Vt/1
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* @var string
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*/
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private const METHOD_NAME_REGEX = '#^(?<method_name>\\w+)(\\(\\))?#';
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/**
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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\NodeTypeResolver\PHPStan\Type\TypeFactory
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*/
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private $typeFactory;
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/**
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* @readonly
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* @var \Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory
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*/
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private $phpDocInfoFactory;
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public function __construct(BetterNodeFinder $betterNodeFinder, TypeFactory $typeFactory, PhpDocInfoFactory $phpDocInfoFactory)
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{
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$this->betterNodeFinder = $betterNodeFinder;
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$this->typeFactory = $typeFactory;
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$this->phpDocInfoFactory = $phpDocInfoFactory;
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}
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// Prevents circular reference
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/**
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* @required
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*/
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public function autowire(NodeTypeResolver $nodeTypeResolver) : void
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{
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$this->nodeTypeResolver = $nodeTypeResolver;
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}
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public function inferParam(Param $param) : Type
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{
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$dataProviderClassMethod = $this->resolveDataProviderClassMethod($param);
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if (!$dataProviderClassMethod instanceof ClassMethod) {
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return new MixedType();
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}
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$parameterPosition = $param->getAttribute(AttributeKey::PARAMETER_POSITION);
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if ($parameterPosition === null) {
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return new MixedType();
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}
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/** @var Return_[] $returns */
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$returns = $this->betterNodeFinder->findInstanceOf((array) $dataProviderClassMethod->stmts, Return_::class);
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if ($returns !== []) {
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return $this->resolveReturnStaticArrayTypeByParameterPosition($returns, $parameterPosition);
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}
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/** @var Yield_[] $yields */
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$yields = $this->betterNodeFinder->findInstanceOf((array) $dataProviderClassMethod->stmts, Yield_::class);
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return $this->resolveYieldStaticArrayTypeByParameterPosition($yields, $parameterPosition);
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}
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private function resolveDataProviderClassMethod(Param $param) : ?ClassMethod
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{
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$phpDocInfo = $this->getFunctionLikePhpDocInfo($param);
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$phpDocTagNode = $phpDocInfo->getByName('@dataProvider');
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if (!$phpDocTagNode instanceof PhpDocTagNode) {
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return null;
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}
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$class = $this->betterNodeFinder->findParentType($param, Class_::class);
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if (!$class instanceof Class_) {
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return null;
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}
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if (!$phpDocTagNode->value instanceof GenericTagValueNode) {
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return null;
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}
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$content = $phpDocTagNode->value->value;
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$match = Strings::match($content, self::METHOD_NAME_REGEX);
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if ($match === null) {
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return null;
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}
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$methodName = $match['method_name'];
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return $class->getMethod($methodName);
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}
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/**
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* @param Return_[] $returns
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*/
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private function resolveReturnStaticArrayTypeByParameterPosition(array $returns, int $parameterPosition) : Type
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{
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$firstReturnedExpr = $returns[0]->expr;
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if (!$firstReturnedExpr instanceof Array_) {
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return new MixedType();
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}
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$paramOnPositionTypes = $this->resolveParamOnPositionTypes($firstReturnedExpr, $parameterPosition);
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if ($paramOnPositionTypes === []) {
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return new MixedType();
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}
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return $this->typeFactory->createMixedPassedOrUnionType($paramOnPositionTypes);
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}
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/**
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* @param Yield_[] $yields
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*/
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private function resolveYieldStaticArrayTypeByParameterPosition(array $yields, int $parameterPosition) : Type
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{
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$paramOnPositionTypes = [];
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foreach ($yields as $yield) {
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if (!$yield->value instanceof Array_) {
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continue;
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}
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$type = $this->getTypeFromClassMethodYield($yield->value);
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if (!$type instanceof ConstantArrayType) {
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return $type;
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}
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foreach ($type->getValueTypes() as $position => $valueType) {
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if ($position !== $parameterPosition) {
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continue;
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}
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$paramOnPositionTypes[] = $valueType;
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}
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}
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if ($paramOnPositionTypes === []) {
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return new MixedType();
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}
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return $this->typeFactory->createMixedPassedOrUnionType($paramOnPositionTypes);
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}
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/**
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* @return \PHPStan\Type\MixedType|\PHPStan\Type\Constant\ConstantArrayType
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*/
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private function getTypeFromClassMethodYield(Array_ $classMethodYieldArrayNode)
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{
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$arrayTypes = $this->nodeTypeResolver->getType($classMethodYieldArrayNode);
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// impossible to resolve
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if (!$arrayTypes instanceof ConstantArrayType) {
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return new MixedType();
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}
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return $arrayTypes;
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}
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private function getFunctionLikePhpDocInfo(Param $param) : PhpDocInfo
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{
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$parentNode = $param->getAttribute(AttributeKey::PARENT_NODE);
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if (!$parentNode instanceof FunctionLike) {
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throw new ShouldNotHappenException();
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}
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return $this->phpDocInfoFactory->createFromNodeOrEmpty($parentNode);
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}
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/**
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* @return Type[]
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*/
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private function resolveParamOnPositionTypes(Array_ $array, int $parameterPosition) : array
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{
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$paramOnPositionTypes = [];
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foreach ($array->items as $singleDataProvidedSet) {
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if (!$singleDataProvidedSet instanceof ArrayItem || !$singleDataProvidedSet->value instanceof Array_) {
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throw new ShouldNotHappenException();
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}
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foreach ($singleDataProvidedSet->value->items as $position => $singleDataProvidedSetItem) {
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if ($position !== $parameterPosition) {
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continue;
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}
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if (!$singleDataProvidedSetItem instanceof ArrayItem) {
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continue;
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}
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$paramOnPositionTypes[] = $this->nodeTypeResolver->getType($singleDataProvidedSetItem->value);
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}
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}
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return $paramOnPositionTypes;
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}
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}
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