symfony · nicolas-grekas · Jun 19, 2025 · Jun 19, 2025
diff --git a/src/Symfony/Component/ObjectMapper/ObjectMapper.php b/src/Symfony/Component/ObjectMapper/ObjectMapper.php
@@ -70,7 +70,7 @@ public function map(object $source, object|string|null $target = null): object
 
         $mappedTarget = $mappingToObject ? $target : $targetRefl->newInstanceWithoutConstructor();
         if ($map && $map->transform) {
-            $mappedTarget = $this->applyTransforms($map, $mappedTarget, $mappedTarget, null);
+            $mappedTarget = $this->applyTransforms($map, $mappedTarget, $source, null);
 
             if (!\is_object($mappedTarget)) {
                 throw new MappingTransformException(\sprintf('Cannot map "%s" to a non-object target of type "%s".', get_debug_type($source), get_debug_type($mappedTarget)));

diff --git a/src/Symfony/Component/ObjectMapper/Tests/Fixtures/InstanceCallbackWithArguments/A.php b/src/Symfony/Component/ObjectMapper/Tests/Fixtures/InstanceCallbackWithArguments/A.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallbackWithArguments;
+
+use Symfony\Component\ObjectMapper\Attribute\Map;
+
+#[Map(target: B::class, transform: [B::class, 'newInstance'])]
+class A
+{
+}
diff --git a/src/Symfony/Component/ObjectMapper/Tests/Fixtures/InstanceCallbackWithArguments/B.php b/src/Symfony/Component/ObjectMapper/Tests/Fixtures/InstanceCallbackWithArguments/B.php
@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallbackWithArguments;
+
+class B
+{
+    public mixed $transformValue;
+    public object $transformSource;
+
+    public static function newInstance(mixed $value, object $source): self
+    {
+        $b = new self();
+        $b->transformValue = $value;
+        $b->transformSource = $source;
+
+        return $b;
+    }
+}
diff --git a/src/Symfony/Component/ObjectMapper/Tests/ObjectMapperTest.php b/src/Symfony/Component/ObjectMapper/Tests/ObjectMapperTest.php
@@ -34,6 +34,8 @@
 use Symfony\Component\ObjectMapper\Tests\Fixtures\HydrateObject\SourceOnly;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallback\A as InstanceCallbackA;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallback\B as InstanceCallbackB;
+use Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallbackWithArguments\A as InstanceCallbackWithArgumentsA;
+use Symfony\Component\ObjectMapper\Tests\Fixtures\InstanceCallbackWithArguments\B as InstanceCallbackWithArgumentsB;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\AToBMapper;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\MapStructMapperMetadataFactory;
 use Symfony\Component\ObjectMapper\Tests\Fixtures\MapStruct\Source;
@@ -155,6 +157,16 @@ public function testMapToWithInstanceHook()
         $this->assertSame($b->name, 'test');
     }
 
+    public function testMapToWithInstanceHookWithArguments()
+    {
+        $a = new InstanceCallbackWithArgumentsA();
+        $mapper = new ObjectMapper();
+        $b = $mapper->map($a);
+        $this->assertInstanceOf(InstanceCallbackWithArgumentsB::class, $b);
+        $this->assertSame($a, $b->transformSource);
+        $this->assertInstanceOf(InstanceCallbackWithArgumentsB::class, $b->transformValue);
+    }
+
     public function testMapStruct()
     {
         $a = new Source('a', 'b', 'c');