FIX - nested dto's doesn't have arguments in good order and Dto with only objects bug

src/Internal/Hydration/AbstractHydrator.php

@@ -18,12 +18,14 @@
 use LogicException;
 use ReflectionClass;
 
+use function array_key_exists;
 use function array_map;
 use function array_merge;
 use function count;
 use function end;
 use function in_array;
 use function is_array;
+use function ksort;
 
 /**
  * Base class for all hydrators. A hydrator is a class that provides some form
@@ -263,6 +265,17 @@ protected function gatherRowData(array $data, array &$id, array &$nonemptyCompon
     {
         $rowData = ['data' => [], 'newObjects' => []];
 
+        foreach ($this->rsm->newObjectMappings as $mapping) {
+            if (! array_key_exists($mapping['objIndex'], $this->rsm->newObject)) {
+                $this->rsm->newObject[$mapping['objIndex']] = $mapping['className'];
+            }
+        }
+
+        foreach ($this->rsm->newObject as $objIndex => $newObject) {
+            $rowData['newObjects'][$objIndex]['class'] = new ReflectionClass($newObject);
+            $rowData['newObjects'][$objIndex]['args']  = [];
+        }
+
         foreach ($data as $key => $value) {
             $cacheKeyInfo = $this->hydrateColumnInfo($key);
             if ($cacheKeyInfo === null) {
@@ -282,7 +295,6 @@ protected function gatherRowData(array $data, array &$id, array &$nonemptyCompon
                         $value = $this->buildEnum($value, $cacheKeyInfo['enumType']);
                     }
 
-                    $rowData['newObjects'][$objIndex]['class']           = $cacheKeyInfo['class'];
                     $rowData['newObjects'][$objIndex]['args'][$argIndex] = $value;
                     break;
 
@@ -336,21 +348,17 @@ protected function gatherRowData(array $data, array &$id, array &$nonemptyCompon
             }
         }
 
-        foreach ($this->resultSetMapping()->nestedNewObjectArguments as $objIndex => ['ownerIndex' => $ownerIndex, 'argIndex' => $argIndex]) {
-            if (! isset($rowData['newObjects'][$ownerIndex . ':' . $argIndex])) {
-                continue;
+        foreach ($this->resultSetMapping()->nestedNewObjectArguments as ['ownerIndex' => $ownerIndex, 'argIndex' => $argIndex, 'argAlias' => $argAlias]) {
+            if (array_key_exists($argAlias, $rowData['newObjects'])) {
+                ksort($rowData['newObjects'][$argAlias]['args']);
+                $rowData['newObjects'][$ownerIndex]['args'][$argIndex] = $rowData['newObjects'][$argAlias]['class']->newInstanceArgs($rowData['newObjects'][$argAlias]['args']);
+                unset($rowData['newObjects'][$argAlias]);
             }
-
-            $newObject = $rowData['newObjects'][$ownerIndex . ':' . $argIndex];
-            unset($rowData['newObjects'][$ownerIndex . ':' . $argIndex]);
-
-            $obj = $newObject['class']->newInstanceArgs($newObject['args']);
-
-            $rowData['newObjects'][$ownerIndex]['args'][$argIndex] = $obj;
         }
 
         foreach ($rowData['newObjects'] as $objIndex => $newObject) {
-            $obj = $newObject['class']->newInstanceArgs($newObject['args']);
+            ksort($rowData['newObjects'][$objIndex]['args']);
+            $obj = $rowData['newObjects'][$objIndex]['class']->newInstanceArgs($rowData['newObjects'][$objIndex]['args']);
 
             $rowData['newObjects'][$objIndex]['obj'] = $obj;
         }
@@ -454,7 +462,6 @@ protected function hydrateColumnInfo(string $key): array|null
                     'type'                 => Type::getType($this->rsm->typeMappings[$key]),
                     'argIndex'             => $mapping['argIndex'],
                     'objIndex'             => $mapping['objIndex'],
-                    'class'                => new ReflectionClass($mapping['className']),
                     'enumType'             => $this->rsm->enumMappings[$key] ?? null,
                 ];
 

src/Query/AST/NewObjectExpression.php

@@ -6,20 +6,28 @@
 
 use Doctrine\ORM\Query\SqlWalker;
 
+use function func_get_arg;
+use function func_num_args;
+
 /**
  * NewObjectExpression ::= "NEW" IdentificationVariable "(" NewObjectArg {"," NewObjectArg}* ")"
  *
  * @link    www.doctrine-project.org
  */
 class NewObjectExpression extends Node
 {
-    /** @param mixed[] $args */
+    /**
+     * @param class-string $className
+     * @param mixed[]      $args
+     */
     public function __construct(public string $className, public array $args)
     {
     }
 
-    public function dispatch(SqlWalker $walker): string
+    public function dispatch(SqlWalker $walker /*, string|null $parentAlias = null */): string
     {
-        return $walker->walkNewObject($this);
+        $parentAlias = func_num_args() > 1 ? func_get_arg(1) : null;
+
+        return $walker->walkNewObject($this, $parentAlias);
     }
 }

src/Query/Parser.php

@@ -1767,6 +1767,7 @@ public function NewObjectExpression(): AST\NewObjectExpression
             $useNamedArguments = true;
         }
 
+        /** @var class-string $className */
         $className = $this->AbstractSchemaName(); // note that this is not yet validated
         $token     = $this->lexer->token;
 
@@ -1854,7 +1855,11 @@ public function NewObjectArg(string|null &$fieldAlias = null): mixed
 
         if ($this->lexer->isNextToken(TokenType::T_AS)) {
             $this->match(TokenType::T_AS);
-            $fieldAlias = $this->AliasIdentificationVariable();
+            $this->match(TokenType::T_IDENTIFIER);
+
+            assert($this->lexer->token !== null);
+
+            $fieldAlias = $this->lexer->token->value;
         }
 
         return $expression;

src/Query/ResultSetMapping.php

@@ -159,6 +159,13 @@ class ResultSetMapping
      */
     public array $newObjectMappings = [];
 
+    /**
+     * Maps object Ids in the result set to classnames.
+     *
+     * @phpstan-var array<string|int, class-string>
+     */
+    public array $newObject = [];
+
     /**
      * Maps last argument for new objects in order to initiate object construction
      *

src/Query/SqlWalker.php

@@ -24,10 +24,8 @@
 use function array_keys;
 use function array_map;
 use function array_merge;
-use function array_pop;
 use function assert;
 use function count;
-use function end;
 use function implode;
 use function in_array;
 use function is_array;
@@ -84,13 +82,6 @@ class SqlWalker
      */
     private int $newObjectCounter = 0;
 
-    /**
-     * Contains nesting levels of new objects arguments
-     *
-     * @phpstan-var array<int, array{0: string|int, 1: int}>
-     */
-    private array $newObjectStack = [];
-
     private readonly EntityManagerInterface $em;
     private readonly Connection $conn;
 
@@ -1507,14 +1498,7 @@ public function walkParenthesisExpression(AST\ParenthesisExpression $parenthesis
     public function walkNewObject(AST\NewObjectExpression $newObjectExpression, string|null $newObjectResultAlias = null): string
     {
         $sqlSelectExpressions = [];
-        $objOwner             = $objOwnerIdx = null;
-
-        if ($this->newObjectStack !== []) {
-            [$objOwner, $objOwnerIdx] = end($this->newObjectStack);
-            $objIndex                 = $objOwner . ':' . $objOwnerIdx;
-        } else {
-            $objIndex = $newObjectResultAlias ?: $this->newObjectCounter++;
-        }
+        $objIndex             = $newObjectResultAlias ?: $this->newObjectCounter++;
 
         foreach ($newObjectExpression->args as $argIndex => $e) {
             $resultAlias = $this->scalarResultCounter++;
@@ -1523,10 +1507,8 @@ public function walkNewObject(AST\NewObjectExpression $newObjectExpression, stri
 
             switch (true) {
                 case $e instanceof AST\NewObjectExpression:
-                    $this->newObjectStack[] = [$objIndex, $argIndex];
-                    $sqlSelectExpressions[] = $e->dispatch($this);
-                    array_pop($this->newObjectStack);
-                    $this->rsm->nestedNewObjectArguments[$columnAlias] = ['ownerIndex' => $objIndex, 'argIndex' => $argIndex];
+                    $sqlSelectExpressions[]                            = $e->dispatch($this, $columnAlias);
+                    $this->rsm->nestedNewObjectArguments[$columnAlias] = ['ownerIndex' => $objIndex, 'argIndex' => $argIndex, 'argAlias' => $columnAlias];
                     break;
 
                 case $e instanceof AST\Subselect:
@@ -1576,12 +1558,13 @@ public function walkNewObject(AST\NewObjectExpression $newObjectExpression, stri
             $this->rsm->addScalarResult($columnAlias, $resultAlias, $fieldType);
 
             $this->rsm->newObjectMappings[$columnAlias] = [
-                'className' => $newObjectExpression->className,
                 'objIndex'  => $objIndex,
                 'argIndex'  => $argIndex,
             ];
         }
 
+        $this->rsm->newObject[$objIndex] = $newObjectExpression->className;
+
         return implode(', ', $sqlSelectExpressions);
     }
 

tests/Tests/Models/CMS/CmsAddressDTO.php

@@ -6,7 +6,7 @@
 
 class CmsAddressDTO
 {
-    public function __construct(public string|null $country = null, public string|null $city = null, public string|null $zip = null, public CmsAddressDTO|string|null $address = null)
+    public function __construct(public string|null $country = null, public string|null $city = null, public string|null $zip = null, public string|null $address = null, public CmsDumbDTO|null $other = null)
     {
     }
 }

tests/Tests/Models/CMS/CmsDumbDTO.php

@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\Models\CMS;
+
+class CmsDumbDTO
+{
+    public function __construct(
+        public mixed $val1 = null,
+        public mixed $val2 = null,
+        public mixed $val3 = null,
+        public mixed $val4 = null,
+        public mixed $val5 = null,
+    ) {
+    }
+}