class aliases are loaded on demand

Author: dg

composer.json

@@ -43,8 +43,7 @@
 		"tracy/tracy": "<2.5"
 	},
 	"autoload": {
-		"classmap": ["src/"],
-		"files": ["src/compatibility.php"]
+		"classmap": ["src/"]
 	},
 	"minimum-stability": "dev",
 	"scripts": {

src/Application/UI/Component.php

@@ -312,3 +312,6 @@ public function error(string $message = '', int $httpCode = Nette\Http\IResponse
 		throw new Nette\Application\BadRequestException($message, $httpCode);
 	}
 }
+
+
+class_exists(PresenterComponent::class);

src/Application/UI/ComponentReflection.php

@@ -310,3 +310,6 @@ public static function getClassesAndTraits(string $class): array
 		return $res;
 	}
 }
+
+
+class_exists(PresenterComponentReflection::class);

src/compatibility.php

@@ -7,5 +7,22 @@
 
 declare(strict_types=1);
 
-class_alias(Nette\Application\UI\Component::class, Nette\Application\UI\PresenterComponent::class);
-class_alias(Nette\Application\UI\ComponentReflection::class, Nette\Application\UI\PresenterComponentReflection::class);
+namespace Nette\Application\UI;
+
+if (false) {
+	/** @deprecated use Nette\Application\UI\Component */
+	class PresenterComponent
+	{
+	}
+} elseif (!class_exists(PresenterComponent::class)) {
+	class_alias(Component::class, PresenterComponent::class);
+}
+
+if (false) {
+	/** @deprecated use Nette\Application\UI\ComponentReflection */
+	class PresenterComponentReflection
+	{
+	}
+} elseif (!class_exists(PresenterComponentReflection::class)) {
+	class_alias(ComponentReflection::class, PresenterComponentReflection::class);
+}