From bec480a1eb45cbe15cc4d13a0fbb738282d57736 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jaroslav=20L=C3=ADbal?= <jaroslav.libal@neatous.cz>
Date: Thu, 25 Jun 2026 11:16:00 +0200
Subject: [PATCH] Form: getHttpData() return type reflects the $htmlName
 argument

---
 src/Forms/Form.php          | 2 +-
 tests/types/forms-types.php | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/Forms/Form.php b/src/Forms/Form.php
index 63088138..54cdbe0a 100644
--- a/src/Forms/Form.php
+++ b/src/Forms/Form.php
@@ -439,7 +439,7 @@ public function setSubmittedBy(?SubmitterControl $by): static
 
 	/**
 	 * Returns raw submitted HTTP data for a control, or all form data when called without arguments.
-	 * @return string|string[]|Nette\Http\FileUpload|null
+	 * @return ($htmlName is null ? mixed[] : string|string[]|Nette\Http\FileUpload|Nette\Http\FileUpload[]|null)
 	 */
 	public function getHttpData(?int $type = null, ?string $htmlName = null): string|array|Nette\Http\FileUpload|null
 	{
diff --git a/tests/types/forms-types.php b/tests/types/forms-types.php
index e88ee6c5..ce9433f9 100644
--- a/tests/types/forms-types.php
+++ b/tests/types/forms-types.php
@@ -50,3 +50,11 @@ function testFormEvents(Form $form): void
 		assertType(Form::class, $form);
 	};
 }
+
+
+// Issue #351: getHttpData() without arguments returns the whole nested data, not string[]
+function testFormGetHttpData(Form $form): void
+{
+	assertType('array<mixed>', $form->getHttpData());
+	assertType('array<Nette\Http\FileUpload|string>|Nette\Http\FileUpload|string|null', $form->getHttpData(Form::DataLine, 'name'));
+}