added PHP 8 attribute Inject

Author: dg

src/DI/Attributes/Inject.php

@@ -0,0 +1,18 @@
+<?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\DI\Attributes;
+
+use Attribute;
+
+
+#[Attribute(Attribute::TARGET_PROPERTY)]
+class Inject
+{
+}

src/DI/DependencyChecker.php

@@ -122,6 +122,7 @@ class_uses($name),
 						$prop->name,
 						$prop->getDocComment(),
 						Reflection::getPropertyTypes($prop),
+						PHP_VERSION_ID >= 80000 ? count($prop->getAttributes(Attributes\Inject::class)) : null,
 					];
 				}
 			}

src/DI/Extensions/InjectExtension.php

@@ -112,9 +112,10 @@ public static function getInjectProperties(string $class): array
 		$res = [];
 		foreach (get_class_vars($class) as $name => $foo) {
 			$rp = new \ReflectionProperty($class, $name);
-			if (DI\Helpers::parseAnnotation($rp, 'inject') !== null) {
+			$hasAttr = PHP_VERSION_ID >= 80000 && $rp->getAttributes(DI\Attributes\Inject::class);
+			if ($hasAttr || DI\Helpers::parseAnnotation($rp, 'inject') !== null) {
 				if ($type = Reflection::getPropertyType($rp)) {
-				} elseif ($type = DI\Helpers::parseAnnotation($rp, 'var')) {
+				} elseif (!$hasAttr && ($type = DI\Helpers::parseAnnotation($rp, 'var'))) {
 					if (strpos($type, '|') !== false) {
 						throw new Nette\InvalidStateException('The ' . Reflection::toString($rp) . ' is not expected to have a union type.');
 					}

tests/DI/InjectExtension.getInjectProperties().php80.phpt

@@ -19,7 +19,17 @@ class AClass
 	public AClass|\stdClass $var;
 }
 
+class EClass
+{
+	#[\Nette\DI\Attributes\Inject]
+	public EInjected $varA;
+}
+
 
 Assert::exception(function () {
 	InjectExtension::getInjectProperties(AClass::class);
 }, Nette\InvalidStateException::class, 'The AClass::$var is not expected to have a union type.');
+
+Assert::same([
+	'varA' => 'EInjected',
+], InjectExtension::getInjectProperties(EClass::class));