Avoid false positive about array result

Author: VincentLanglet

Diff for: src/Type/Doctrine/Query/QueryResultDynamicReturnTypeExtension.php

@@ -199,9 +199,14 @@ static function (Type $type, callable $traverse) use ($objectManager): Type {
 					return new MixedType();
 				}
 
-				return $objectManager->getMetadataFactory()->hasMetadataFor($type->getClassName())
-					? new ArrayType(new MixedType(), new MixedType())
-					: $traverse($type);
+				if (!$objectManager->getMetadataFactory()->hasMetadataFor($type->getClassName())) {
+					return $traverse($type);
+				}
+
+				// We could return `new ArrayTyp(new MixedType(), new MixedType())`
+				// but the lack of precision in the array keys/values would give false positive
+				// @see https://github.com/phpstan/phpstan-doctrine/pull/412#issuecomment-1497092934
+				return new MixedType();
 			}
 		);
 	}

Diff for: tests/Type/Doctrine/data/QueryResult/queryResult.php

@@ -155,35 +155,35 @@ public function testReturnTypeOfQueryMethodsWithExplicitArrayHydrationMode(Entit
 		');
 
 		assertType(
-			'list<array>',
+			'list<mixed>',
 			$query->getResult(AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'list<array>',
+			'list<mixed>',
 			$query->getArrayResult()
 		);
 		assertType(
-			'iterable<int, array>',
+			'iterable<int, mixed>',
 			$query->toIterable([], AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'list<array>',
+			'list<mixed>',
 			$query->execute(null, AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'list<array>',
+			'list<mixed>',
 			$query->executeIgnoreQueryCache(null, AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'list<array>',
+			'list<mixed>',
 			$query->executeUsingQueryCache(null, AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'array',
+			'mixed',
 			$query->getSingleResult(AbstractQuery::HYDRATE_ARRAY)
 		);
 		assertType(
-			'array|null',
+			'mixed',
 			$query->getOneOrNullResult(AbstractQuery::HYDRATE_ARRAY)
 		);