keep unioned types scalar

Author: TomasVotruba

rules/CodingStyle/Rector/Enum_/EnumCaseToPascalCaseRector.php

@@ -195,6 +195,7 @@ private function isEnumCase(ClassReflection $classReflection, string $name, stri
         if ($classReflection->hasEnumCase($name)) {
             return true;
         }
+
         return $classReflection->hasEnumCase($pascalName);
     }
 

rules/TypeDeclarationDocblocks/Rector/ClassMethod/DocblockReturnArrayFromDirectArrayInstanceRector.php

@@ -16,12 +16,15 @@
 use PHPStan\Type\Constant\ConstantArrayType;
 use PHPStan\Type\FloatType;
 use PHPStan\Type\IntegerType;
+use PHPStan\Type\IntersectionType;
 use PHPStan\Type\MixedType;
 use PHPStan\Type\NeverType;
 use PHPStan\Type\StringType;
 use PHPStan\Type\Type;
+use PHPStan\Type\UnionType;
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
 use Rector\Comments\NodeDocBlock\DocBlockUpdater;
+use Rector\NodeTypeResolver\PHPStan\Type\TypeFactory;
 use Rector\Rector\AbstractRector;
 use Rector\StaticTypeMapper\StaticTypeMapper;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
@@ -35,7 +38,8 @@ final class DocblockReturnArrayFromDirectArrayInstanceRector extends AbstractRec
     public function __construct(
         private readonly PhpDocInfoFactory $phpDocInfoFactory,
         private readonly DocBlockUpdater $docBlockUpdater,
-        private readonly StaticTypeMapper $staticTypeMapper
+        private readonly StaticTypeMapper $staticTypeMapper,
+        private readonly TypeFactory $typeFactory
     ) {
     }
 
@@ -145,6 +149,20 @@ private function constantToGenericType(Type $type): Type
             return new FloatType();
         }
 
+        if ($type instanceof UnionType || $type instanceof IntersectionType) {
+            $genericComplexTypes = [];
+            foreach ($type->getTypes() as $splitType) {
+                $genericComplexTypes[] = $this->constantToGenericType($splitType);
+            }
+
+            $genericComplexTypes = $this->typeFactory->uniquateTypes($genericComplexTypes);
+            if (count($genericComplexTypes) > 1) {
+                return new UnionType($genericComplexTypes);
+            }
+
+            return $genericComplexTypes[0];
+        }
+
         // unclear
         return new MixedType();
     }