Making phpstan level higher

phpstan.neon

@@ -2,11 +2,12 @@ includes:
     - vendor/phpstan/phpstan-webmozart-assert/extension.neon
 
 parameters:
-    level: 4
+    level: 6
     excludes_analyse:
         # Makes PHPStan crash
         - src/DependencyInjection/Configuration.php
 
     ignoreErrors:
         - /^Access to an undefined property Symfony\\Component\\Validator\\Constraint::\$message\.$/
-        - '/^Method Symfony\\Contracts\\EventDispatcher\\EventDispatcherInterface::dispatch\(\) invoked with 2 parameters, 1 required\.$/'
+        - '/Symfony\\Contracts\\EventDispatcher\\EventDispatcherInterface::dispatch\(\)/'
+        - '/Sylius\\Component\\Core\\Model\\(\w+), Sylius\\Component\\\w+\\Model\\\1 given\./'

src/Controller/Customer/CustomerController.php

@@ -10,6 +10,7 @@
 use Sylius\ShopApiPlugin\View\ValidationErrorView;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Webmozart\Assert\Assert;
 
 final class CustomerController extends ResourceController
 {
@@ -24,8 +25,11 @@ public function createAction(Request $request): Response
         /** @var ViewHandlerInterface $viewHandler */
         $viewHandler = $this->get('fos_rest.view_handler');
 
+        $validationResults = $response->getContent();
+        Assert::string($validationResults);
+
         return $viewHandler
-            ->handle(View::create($this->createValidationMessage($response->getContent()), Response::HTTP_BAD_REQUEST))
+            ->handle(View::create($this->createValidationMessage($validationResults), Response::HTTP_BAD_REQUEST))
         ;
     }
 

src/Factory/Checkout/PaymentViewFactory.php

@@ -7,6 +7,7 @@
 use Sylius\Component\Core\Model\PaymentInterface;
 use Sylius\ShopApiPlugin\Factory\PriceViewFactoryInterface;
 use Sylius\ShopApiPlugin\View\Cart\PaymentView;
+use Webmozart\Assert\Assert;
 
 final class PaymentViewFactory implements PaymentViewFactoryInterface
 {
@@ -36,7 +37,10 @@ public function create(PaymentInterface $payment, string $locale): PaymentView
         $paymentView = new $this->paymentViewClass();
 
         $paymentView->state = $payment->getState();
-        $paymentView->method = $this->paymentMethodViewFactory->create($payment->getMethod(), $locale);
+        $paymentMethod = $payment->getMethod();
+        Assert::notNull($paymentMethod);
+
+        $paymentView->method = $this->paymentMethodViewFactory->create($paymentMethod, $locale);
         $paymentView->price = $this->priceViewFactory->create($payment->getAmount(), $payment->getCurrencyCode());
 
         return $paymentView;

src/Factory/Checkout/ShippingMethodViewFactory.php

@@ -10,6 +10,7 @@
 use Sylius\Component\Shipping\Calculator\CalculatorInterface;
 use Sylius\ShopApiPlugin\Factory\PriceViewFactoryInterface;
 use Sylius\ShopApiPlugin\View\Cart\ShippingMethodView;
+use Webmozart\Assert\Assert;
 
 final class ShippingMethodViewFactory implements ShippingMethodViewFactoryInterface
 {
@@ -35,7 +36,10 @@ public function __construct(
     /** {@inheritdoc} */
     public function create(ShipmentInterface $shipment, string $locale, string $currency): ShippingMethodView
     {
-        return $this->createWithShippingMethod($shipment, $shipment->getMethod(), $locale, $currency);
+        $shippingMethod = $shipment->getMethod();
+        Assert::notNull($shippingMethod);
+
+        return $this->createWithShippingMethod($shipment, $shippingMethod, $locale, $currency);
     }
 
     /** {@inheritdoc} */

src/Shipping/ShippingCostEstimator.php

@@ -77,7 +77,9 @@ public function estimate(
         $shippingMethod = $shippingMethods[0];
 
         /** @var CalculatorInterface $calculator */
-        $calculator = $this->calculators->get($shippingMethod->getCalculator());
+        $calculatorName = $shippingMethod->getCalculator();
+        Assert::notNull($calculatorName);
+        $calculator = $this->calculators->get($calculatorName);
 
         $value = $calculator->calculate($shipment, $shippingMethod->getConfiguration());
         $currencyCode = $cart->getCurrencyCode();

src/ViewRepository/Product/ProductReviewsViewRepository.php

@@ -71,6 +71,7 @@ public function getByProductCode(string $productCode, string $channelCode, Pagin
         $channel = $this->getChannel($channelCode);
 
         $product = $this->productRepository->findOneByCode($productCode);
+        Assert::notNull($product);
         Assert::true($product->hasChannel($channel));
 
         $reviews = $this->productReviewRepository->findBy(['reviewSubject' => $product->getId(), 'status' => ReviewInterface::STATUS_ACCEPTED]);