Factory: $withBodies cannot be used for internal classes/functions

Author: dg

src/PhpGenerator/Factory.php

@@ -31,8 +31,8 @@ public function fromClassReflection(
 		bool $withBodies = false,
 	): ClassLike
 	{
-		if ($withBodies && $from->isAnonymous()) {
-			throw new Nette\NotSupportedException('The $withBodies parameter cannot be used for anonymous functions.');
+		if ($withBodies && ($from->isAnonymous() || $from->isInternal())) {
+			throw new Nette\NotSupportedException('The $withBodies parameter cannot be used for anonymous or internal classes.');
 		}
 
 		$enumIface = null;
@@ -177,8 +177,8 @@ public function fromFunctionReflection(\ReflectionFunction $from, bool $withBody
 		$function->setReturnType((string) $from->getReturnType());
 
 		if ($withBody) {
-			if ($from->isClosure()) {
-				throw new Nette\NotSupportedException('The $withBody parameter cannot be used for closures.');
+			if ($from->isClosure() || $from->isInternal()) {
+				throw new Nette\NotSupportedException('The $withBody parameter cannot be used for closures or internal functions.');
 			}
 
 			$function->setBody($this->getExtractor($from)->extractFunctionBody($from->name));

tests/PhpGenerator/ClassType.from.bodies.phpt

@@ -11,8 +11,8 @@ require __DIR__ . '/fixtures/bodies.php';
 
 Assert::exception(
 	fn() => ClassType::from(PDO::class, withBodies: true),
-	Nette\InvalidStateException::class,
-	'Source code of PDO not found.',
+	Nette\NotSupportedException::class,
+	'The $withBodies parameter cannot be used for anonymous or internal classes.',
 );
 
 
@@ -23,7 +23,7 @@ Assert::exception(
 		}
 	}, withBodies: true),
 	Nette\NotSupportedException::class,
-	'The $withBodies parameter cannot be used for anonymous functions.',
+	'The $withBodies parameter cannot be used for anonymous or internal classes.',
 );