Fix fatal error in serializer/denormalizer extensions

Author: lookyman

src/Type/Symfony/SerializerDynamicReturnTypeExtension.php

@@ -39,6 +39,10 @@ public function isMethodSupported(MethodReflection $methodReflection): bool
 
 	public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type
 	{
+		if (!isset($methodCall->args[1])) {
+			return new MixedType();
+		}
+
 		$argType = $scope->getType($methodCall->args[1]->value);
 		if (!$argType instanceof ConstantStringType) {
 			return new MixedType();

tests/Type/Symfony/ExtensionTestCase.php

@@ -13,7 +13,6 @@
 use PHPStan\Node\VirtualNode;
 use PHPStan\PhpDoc\PhpDocNodeResolver;
 use PHPStan\PhpDoc\PhpDocStringResolver;
-use PHPStan\PhpDoc\TypeNodeResolver;
 use PHPStan\Testing\TestCase;
 use PHPStan\Type\DynamicMethodReturnTypeExtension;
 use PHPStan\Type\FileTypeMapper;
@@ -36,8 +35,6 @@ protected function processFile(
 		$typeSpecifier = $this->createTypeSpecifier(new Standard(), $broker);
 		/** @var \PHPStan\PhpDoc\PhpDocStringResolver $phpDocStringResolver */
 		$phpDocStringResolver = self::getContainer()->getByType(PhpDocStringResolver::class);
-		/** @var \PHPStan\PhpDoc\TypeNodeResolver $typeNodeResolver */
-		$typeNodeResolver = self::getContainer()->getByType(TypeNodeResolver::class);
 		$resolver = new NodeScopeResolver(
 			$broker,
 			$parser,

tests/Type/Symfony/denormalizer.php

@@ -5,5 +5,6 @@
 $first = $serializer->denormalize('bar', 'Bar', 'format');
 $second = $serializer->denormalize('bar', 'Bar[]', 'format');
 $third = $serializer->denormalize('bar', 'Bar[][]', 'format');
+$fourth = $serializer->denormalize('bar');
 
 die;

tests/Type/Symfony/serializer.php

@@ -5,5 +5,6 @@
 $first = $serializer->deserialize('bar', 'Bar', 'format');
 $second = $serializer->deserialize('bar', 'Bar[]', 'format');
 $third = $serializer->deserialize('bar', 'Bar[][]', 'format');
+$fourth = $serializer->deserialize('bar');
 
 die;