added DataClassGenerator & tag {formClassPrint}

src/Bridges/FormsLatte/FormMacros.php

@@ -39,6 +39,7 @@ public static function install(Latte\Compiler $compiler): void
 		$me->addMacro('name', [$me, 'macroName'], [$me, 'macroNameEnd'], [$me, 'macroNameAttr']);
 		$me->addMacro('inputError', [$me, 'macroInputError']);
 		$me->addMacro('formPrint', [$me, 'macroFormPrint']);
+		$me->addMacro('formClassPrint', [$me, 'macroFormPrint']);
 	}
 
 
@@ -281,7 +282,8 @@ public function macroInputError(MacroNode $node, PhpWriter $writer)
 
 
 	/**
-	 * {formPrint [ClassName]}
+	 * {formPrint ClassName}
+	 * {formClassPrint ClassName}
 	 */
 	public function macroFormPrint(MacroNode $node, PhpWriter $writer)
 	{
@@ -291,7 +293,7 @@ public function macroFormPrint(MacroNode $node, PhpWriter $writer)
 		}
 		$node->tokenizer->reset();
 		return $writer->write(
-			'Nette\Bridges\FormsLatte\Runtime::renderBlueprint('
+			'Nette\Bridges\FormsLatte\Runtime::render' . $node->name . '('
 			. ($name[0] === '$' ? 'is_object(%node.word) ? %node.word : ' : '')
 			. '$this->global->uiControl[%node.word]); exit;'
 		);

src/Bridges/FormsLatte/Runtime.php

@@ -85,4 +85,22 @@ public static function renderBlueprint(Form $form): void
 		$blueprint->printCode((new Nette\Forms\Rendering\LatteRenderer)->render($form), 'latte');
 		echo $end;
 	}
+
+
+	/**
+	 * Generates blueprint of form data class.
+	 */
+	public static function renderFormClassPrint(Form $form): void
+	{
+		$blueprint = new Latte\Runtime\Blueprint;
+		$end = $blueprint->printCanvas();
+		$blueprint->printHeader('Form Data Class ' . $form->getName());
+		$generator = new Nette\Forms\Rendering\DataClassGenerator;
+		$blueprint->printCode($generator->generateCode($form));
+		if (PHP_VERSION_ID >= 80000) {
+			$generator->propertyPromotion = true;
+			$blueprint->printCode($generator->generateCode($form));
+		}
+		echo $end;
+	}
 }

src/Forms/Rendering/DataClassGenerator.php

@@ -0,0 +1,98 @@
+<?php
+
+/**
+ * This file is part of the Nette Framework (https://nette.org)
+ * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
+ */
+
+declare(strict_types=1);
+
+namespace Nette\Forms\Rendering;
+
+use Latte;
+use Nette\Forms\Container;
+use Nette\Forms\Controls;
+use Nette\Forms\Form;
+
+
+/**
+ * Generates blueprint of form data class.
+ */
+final class DataClassGenerator
+{
+	/** @var string */
+	public $classNameSuffix = 'FormData';
+
+	/** @var string */
+	public $baseClassName;
+
+	/** @var bool */
+	public $propertyPromotion = false;
+
+	/** @var bool */
+	public $useSmartObject = true;
+
+
+	public function generateCode(Form $form): string
+	{
+		$baseClassName = $this->baseClassName ?? preg_replace('~Form$~', '', ucwords((string) $form->getName()));
+		return $this->generateClass($form, $baseClassName);
+	}
+
+
+	private function generateClass(Container $form, string $baseClass): string
+	{
+		$code = '';
+		$props = [];
+		foreach ($form->getComponents() as $name => $input) {
+			if ($input instanceof Controls\BaseControl && $input->isOmitted()) {
+				continue;
+			} elseif ($input instanceof Controls\Checkbox) {
+				$type = 'bool';
+			} elseif ($input instanceof Controls\MultiChoiceControl) {
+				$type = 'array';
+			} elseif ($input instanceof Controls\ChoiceControl) {
+				$type = 'string|int';
+				if (!$input->isRequired()) {
+					$type .= '|null';
+				}
+			} elseif ($input instanceof Controls\HiddenField || $input instanceof Controls\TextBase) {
+				$type = 'string';
+				foreach ($input->getRules() as $rule) {
+					if ($rule->validator === Form::INTEGER) {
+						$type = 'int';
+						break;
+					}
+				}
+				if (!$input->isRequired()) {
+					$type = '?' . $type;
+				}
+			} elseif ($input instanceof Controls\UploadControl) {
+				$type = '\Nette\Http\FileUpload';
+				if (!$input->isRequired()) {
+					$type = '?' . $type;
+				}
+			} elseif ($input instanceof Container) {
+				$type = $baseClass . ucwords($name);
+				$code .= self::generateClass($input, $type);
+				$type .= $this->classNameSuffix;
+			} else {
+				$type = '';
+			}
+
+			$props[] = 'public ' . ($type ? $type . ' ' : '') . '$' . $name;
+		}
+
+		$class = $baseClass . $this->classNameSuffix;
+		return "class $class\n"
+			. "{\n"
+			. ($this->useSmartObject ? "\tuse \\Nette\\SmartObject;\n\n" : '')
+			. ($this->propertyPromotion
+				? "\tpublic function __construct(\n"
+					. ($props ? "\t\t" . implode(",\n\t\t", $props) . ",\n" : '')
+					. "\t) {\n\t}\n"
+				: ($props ? "\t" . implode(";\n\t", $props) . ";\n" : '')
+			)
+			. "}\n\n" . $code;
+	}
+}

tests/Forms.Latte/Runtime.renderFormClassPrint.phpt

@@ -0,0 +1,44 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Forms\Form;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$form = new Form('signForm');
+$form->addText('name')->setRequired();
+
+ob_start();
+Nette\Bridges\FormsLatte\Runtime::renderFormClassPrint($form);
+$res = ob_get_clean();
+
+Assert::match(
+	'%A%class SignFormData
+{
+	use \Nette\SmartObject;
+
+	public string $name;
+}
+%A%',
+	$res
+);
+
+if (PHP_VERSION_ID >= 80000) {
+	Assert::match(
+		'%A%class SignFormData
+{
+	use \Nette\SmartObject;
+
+	public function __construct(
+		public string $name,
+	) {
+	}
+}
+%A%',
+		$res
+	);
+}

tests/Forms/DataClassGenerator.phpt

@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Forms\Form;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+$form = new Form('signForm');
+$form->addText('name')->setRequired();
+$form->addInteger('age');
+$form->addContainer('cont')
+	->addText('name');
+$form->addHidden('id');
+$form->addCheckbox('agree');
+$form->addSubmit('submit', 'Send');
+
+$generator = new Nette\Forms\Rendering\DataClassGenerator;
+$res = $generator->generateCode($form);
+
+Assert::match(
+	'class SignFormData
+{
+	use \Nette\SmartObject;
+
+	public string $name;
+	public ?int $age;
+	public SignContFormData $cont;
+	public ?string $id;
+	public bool $agree;
+}
+
+class SignContFormData
+{
+	use \Nette\SmartObject;
+
+	public ?string $name;
+}
+',
+	$res
+);
+
+$generator->propertyPromotion = true;
+$generator->useSmartObject = false;
+$res = $generator->generateCode($form);
+
+Assert::match(
+	'class SignFormData
+{
+	public function __construct(
+		public string $name,
+		public ?int $age,
+		public SignContFormData $cont,
+		public ?string $id,
+		public bool $agree,
+	) {
+	}
+}
+
+class SignContFormData
+{
+	public function __construct(
+		public ?string $name,
+	) {
+	}
+}
+',
+	$res
+);