mirror of https://github.com/rectorphp/rector.git
193 lines
6.8 KiB
PHP
193 lines
6.8 KiB
PHP
<?php
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declare (strict_types=1);
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namespace Rector\TypeDeclaration\Rector\ClassMethod;
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use PhpParser\Node;
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use PhpParser\Node\Expr\ArrowFunction;
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use PhpParser\Node\Expr\Closure;
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use PhpParser\Node\Expr\New_;
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use PhpParser\Node\Name;
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use PhpParser\Node\Name\FullyQualified;
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use PhpParser\Node\Stmt\ClassMethod;
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use PhpParser\Node\Stmt\Function_;
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use PhpParser\Node\Stmt\Return_;
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use PHPStan\Reflection\ClassReflection;
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use PHPStan\Reflection\ReflectionProvider;
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use PHPStan\Type\ObjectType;
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use PHPStan\Type\StaticType;
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use PHPStan\Type\Type;
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use Rector\Core\Enum\ObjectReference;
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use Rector\Core\Exception\ShouldNotHappenException;
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use Rector\Core\Rector\AbstractRector;
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use Rector\Core\Reflection\ReflectionResolver;
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use Rector\Core\ValueObject\PhpVersionFeature;
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use Rector\NodeTypeResolver\PHPStan\Type\TypeFactory;
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use Rector\PHPStanStaticTypeMapper\Enum\TypeKind;
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use Rector\StaticTypeMapper\ValueObject\Type\SelfStaticType;
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use Rector\TypeDeclaration\NodeAnalyzer\ReturnTypeAnalyzer\StrictReturnNewAnalyzer;
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use Rector\VendorLocker\NodeVendorLocker\ClassMethodReturnTypeOverrideGuard;
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use Rector\VersionBonding\Contract\MinPhpVersionInterface;
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use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
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use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
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/**
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* @see \Rector\Tests\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromReturnNewRector\ReturnTypeFromReturnNewRectorTest
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*/
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final class ReturnTypeFromReturnNewRector extends AbstractRector implements MinPhpVersionInterface
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{
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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 \PHPStan\Reflection\ReflectionProvider
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*/
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private $reflectionProvider;
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/**
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* @readonly
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* @var \Rector\Core\Reflection\ReflectionResolver
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*/
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private $reflectionResolver;
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/**
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* @readonly
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* @var \Rector\TypeDeclaration\NodeAnalyzer\ReturnTypeAnalyzer\StrictReturnNewAnalyzer
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*/
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private $strictReturnNewAnalyzer;
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/**
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* @readonly
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* @var \Rector\VendorLocker\NodeVendorLocker\ClassMethodReturnTypeOverrideGuard
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*/
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private $classMethodReturnTypeOverrideGuard;
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public function __construct(TypeFactory $typeFactory, ReflectionProvider $reflectionProvider, ReflectionResolver $reflectionResolver, StrictReturnNewAnalyzer $strictReturnNewAnalyzer, ClassMethodReturnTypeOverrideGuard $classMethodReturnTypeOverrideGuard)
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{
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$this->typeFactory = $typeFactory;
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$this->reflectionProvider = $reflectionProvider;
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$this->reflectionResolver = $reflectionResolver;
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$this->strictReturnNewAnalyzer = $strictReturnNewAnalyzer;
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$this->classMethodReturnTypeOverrideGuard = $classMethodReturnTypeOverrideGuard;
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}
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public function getRuleDefinition() : RuleDefinition
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{
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return new RuleDefinition('Add return type to function like with return new', [new CodeSample(<<<'CODE_SAMPLE'
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final class SomeClass
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{
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public function action()
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{
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return new Response();
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}
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}
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CODE_SAMPLE
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, <<<'CODE_SAMPLE'
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final class SomeClass
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{
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public function action(): Response
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{
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return new Response();
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}
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}
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CODE_SAMPLE
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)]);
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}
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/**
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* @return array<class-string<Node>>
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*/
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public function getNodeTypes() : array
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{
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return [ClassMethod::class, Function_::class, Closure::class, ArrowFunction::class];
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}
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/**
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* @param ClassMethod|Function_|ArrowFunction $node
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*/
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public function refactor(Node $node) : ?Node
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{
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if ($node->returnType !== null) {
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return null;
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}
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if ($node instanceof ClassMethod && $this->classMethodReturnTypeOverrideGuard->shouldSkipClassMethod($node)) {
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return null;
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}
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if (!$node instanceof ArrowFunction) {
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$returnedNewClassName = $this->strictReturnNewAnalyzer->matchAlwaysReturnVariableNew($node);
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if (\is_string($returnedNewClassName)) {
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$node->returnType = new FullyQualified($returnedNewClassName);
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return $node;
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}
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}
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return $this->refactorDirectReturnNew($node);
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}
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public function provideMinPhpVersion() : int
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{
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return PhpVersionFeature::SCALAR_TYPES;
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}
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/**
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* @return \PHPStan\Type\ObjectType|\PHPStan\Type\StaticType
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*/
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private function createObjectTypeFromNew(New_ $new)
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{
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$className = $this->getName($new->class);
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if ($className === null) {
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throw new ShouldNotHappenException();
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}
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if ($className === ObjectReference::STATIC || $className === ObjectReference::SELF) {
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$classReflection = $this->reflectionResolver->resolveClassReflection($new);
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if (!$classReflection instanceof ClassReflection) {
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throw new ShouldNotHappenException();
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}
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if ($className === ObjectReference::SELF) {
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return new SelfStaticType($classReflection);
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}
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return new StaticType($classReflection);
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}
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$classReflection = $this->reflectionProvider->getClass($className);
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return new ObjectType($className, null, $classReflection);
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}
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/**
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* @param \PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Expr\ArrowFunction|\PhpParser\Node\Expr\Closure $node
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* @return null|\PhpParser\Node\Expr\ArrowFunction|\PhpParser\Node\Stmt\Function_|\PhpParser\Node\Stmt\ClassMethod|\PhpParser\Node\Expr\Closure
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*/
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private function refactorDirectReturnNew($node)
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{
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if ($node instanceof ArrowFunction) {
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$returns = [new Return_($node->expr)];
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} else {
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/** @var Return_[] $returns */
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$returns = $this->betterNodeFinder->findInstancesOfInFunctionLikeScoped($node, Return_::class);
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}
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if ($returns === []) {
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return null;
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}
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$newTypes = $this->resolveReturnNewType($returns);
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if ($newTypes === null) {
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return null;
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}
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$returnType = $this->typeFactory->createMixedPassedOrUnionType($newTypes);
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$returnTypeNode = $this->staticTypeMapper->mapPHPStanTypeToPhpParserNode($returnType, TypeKind::RETURN);
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if (!$returnTypeNode instanceof Node) {
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return null;
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}
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$node->returnType = $returnTypeNode;
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return $node;
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}
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/**
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* @param Return_[] $returns
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* @return Type[]|null
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*/
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private function resolveReturnNewType(array $returns) : ?array
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{
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$newTypes = [];
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foreach ($returns as $return) {
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if (!$return->expr instanceof New_) {
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return null;
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}
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$new = $return->expr;
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if (!$new->class instanceof Name) {
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return null;
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}
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$newTypes[] = $this->createObjectTypeFromNew($new);
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}
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return $newTypes;
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}
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}
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