bug #36794 [Serializer] fix issue with PHP 8 (nicolas-grekas)

This PR was merged into the 3.4 branch. Discussion ---------- [Serializer] fix issue with PHP 8 | Q | A | ------------- | --- | Branch? | 3.4 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | - | License | MIT | Doc PR | - The current logic is a bit strange but I guess it's some legacy from PHP 5. This keeps the current behavior while skipping the use of `ReflectionParameter::getClass()`, which [is deprecated in PHP 8](http://git.php.net/?p=php-src.git;a=commitdiff;h=28af364d2ae2261addc21f8830f175baa8fa72cf). Commits ------- 44b45cb [Serializer] fix issue with PHP 8
symfony · May 13, 2020 · 8f2c68f · 8f2c68f
2 parents a8cb3cd + 44b45cb
commit 8f2c68f
Showing 1 changed file with 11 additions and 3 deletions.
diff --git a/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php b/src/Symfony/Component/Serializer/Normalizer/AbstractNormalizer.php
@@ -386,11 +386,19 @@ protected function instantiateObject(array &$data, $class, array &$context, \Ref
     protected function denormalizeParameter(\ReflectionClass $class, \ReflectionParameter $parameter, $parameterName, $parameterData, array $context, $format = null)
     {
         try {
-            if (null !== $parameter->getClass()) {
+            if (\PHP_VERSION_ID < 70100 && null !== $parameterClass = $parameter->getClass()) {
+                $parameterClass = $parameterClass->name;
+            } elseif (\PHP_VERSION_ID >= 70100 && $parameter->hasType() && ($parameterType = $parameter->getType()) && !$parameterType->isBuiltin()) {
+                $parameterClass = $parameterType->getName();
+                new \ReflectionClass($parameterClass); // throws a \ReflectionException if the class doesn't exist
+            } else {
+                $parameterClass = null;
+            }
+
+            if (null !== $parameterClass) {
                 if (!$this->serializer instanceof DenormalizerInterface) {
-                    throw new LogicException(sprintf('Cannot create an instance of "%s" from serialized data because the serializer inject in "%s" is not a denormalizer.', $parameter->getClass(), static::class));
+                    throw new LogicException(sprintf('Cannot create an instance of "%s" from serialized data because the serializer inject in "%s" is not a denormalizer.', $parameterClass, static::class));
                 }
-                $parameterClass = $parameter->getClass()->getName();
 
                 return $this->serializer->denormalize($parameterData, $parameterClass, $format, $this->createChildContext($context, $parameterName, $format));
             }