JMS\Serializer\GraphNavigator\SerializationGraphNavigator::accept()

Complexity

Conditions	52
Paths	5056

Size

Total Lines	172
Code Lines	95

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	67
CRAP Score	52.0085

Importance

Changes	4
Bugs	0	Features	0

<?php
    public function accept($data, ?array $type = null)
    {
        // If the type was not given, we infer the most specific type from the
        // input data in serialization mode.
        if (null === $type) {
            $typeName = \gettype($data);
            if ('object' === $typeName) {
                $typeName = \get_class($data);
            }

            $type = ['name' => $typeName, 'params' => []];
        } elseif (null === $data) {
            // If the data is null, we have to force the type to null regardless of the input in order to
            // guarantee correct handling of null values, and not have any internal auto-casting behavior.
            $type = ['name' => 'NULL', 'params' => []];
        }

        // Sometimes data can convey null but is not of a null type.
        // Visitors can have the power to add this custom null evaluation
        if ($this->visitor instanceof NullAwareVisitorInterface && true === $this->visitor->isNull($data)) {
            $type = ['name' => 'NULL', 'params' => []];
        }

        switch ($type['name']) {
            case 'NULL':
                if (!$this->shouldSerializeNull && !$this->isRootNullAllowed()) {
                    throw new NotAcceptableException();
                }

                return $this->visitor->visitNull($data, $type);

            case 'string':
                return $this->visitor->visitString((string) $data, $type);

            case 'int':
            case 'integer':
                return $this->visitor->visitInteger((int) $data, $type);

            case 'bool':
            case 'boolean':
            case 'true':
            case 'false':
                return $this->visitor->visitBoolean((bool) $data, $type);

            case 'double':
            case 'float':
                return $this->visitor->visitDouble((float) $data, $type);

            case 'iterable':
                return $this->visitor->visitArray(Functions::iterableToArray($data), $type);

            case 'array':
            case 'list':
                return $this->visitor->visitArray((array) $data, $type);

            case 'resource':
                $msg = 'Resources are not supported in serialized data.';
                if (null !== $path = $this->context->getPath()) {
                    $msg .= ' Path: ' . $path;
                }

                throw new RuntimeException($msg);

            case 'union':
                if (null !== $handler = $this->handlerRegistry->getHandler(GraphNavigatorInterface::DIRECTION_SERIALIZATION, $type['name'], $this->format)) {
                    try {
                        return \call_user_func($handler, $this->visitor, $data, $type, $this->context);

It seems like $handler can also be of type object; however, parameter $callback of call_user_func() does only seem to accept callable, maybe add an additional type check?

                    } catch (SkipHandlerException $e) {
                        // Skip handler, fallback to default behavior
                    }
                }

                break;
            default:
                if (null !== $data) {
                    if ($this->context->isVisiting($data)) {
                        throw new CircularReferenceDetectedException();
                    }

                    $this->context->startVisiting($data);
                }

                // If we're serializing a polymorphic type, then we'll be interested in the
                // metadata for the actual type of the object, not the base class.
                if (class_exists($type['name'], false) || interface_exists($type['name'], false)) {
                    if (is_subclass_of($data, $type['name'], false) && null === $this->handlerRegistry->getHandler(GraphNavigatorInterface::DIRECTION_SERIALIZATION, $type['name'], $this->format)) {
                        $type = ['name' => \get_class($data), 'params' => $type['params'] ?? []];
                    }
                }

                // Trigger pre-serialization callbacks, and listeners if they exist.
                // Dispatch pre-serialization event before handling data to have ability change type in listener
                if ($this->dispatcher->hasListeners('serializer.pre_serialize', $type['name'], $this->format)) {
                    $this->dispatcher->dispatch('serializer.pre_serialize', $type['name'], $this->format, $event = new PreSerializeEvent($this->context, $data, $type));
                    $type = $event->getType();
                }

                // First, try whether a custom handler exists for the given type. This is done
                // before loading metadata because the type name might not be a class, but
                // could also simply be an artifical type.
                if (null !== $handler = $this->handlerRegistry->getHandler(GraphNavigatorInterface::DIRECTION_SERIALIZATION, $type['name'], $this->format)) {
                    try {
                        $rs = \call_user_func($handler, $this->visitor, $data, $type, $this->context);
                        $this->context->stopVisiting($data);

                        return $rs;
                    } catch (SkipHandlerException $e) {
                        // Skip handler, fallback to default behavior
                    } catch (NotAcceptableException $e) {
                        $this->context->stopVisiting($data);

                        throw $e;
                    }
                }

                $metadata = $this->metadataFactory->getMetadataForClass($type['name']);
                \assert($metadata instanceof ClassMetadata);

                if ($metadata->usingExpression && null === $this->expressionExclusionStrategy) {
                    throw new ExpressionLanguageRequiredException(sprintf('To use conditional exclude/expose in %s you must configure the expression language.', $metadata->name));
                }

                if (null !== $this->exclusionStrategy && $this->exclusionStrategy->shouldSkipClass($metadata, $this->context)) {
                    $this->context->stopVisiting($data);

                    throw new ExcludedClassException();
                }

                if (null !== $this->expressionExclusionStrategy && $this->expressionExclusionStrategy->shouldSkipClass($metadata, $this->context)) {
                    $this->context->stopVisiting($data);

                    throw new ExcludedClassException();
                }

                if (!is_object($data)) {
                    throw new InvalidArgumentException('Value at ' . $this->context->getPath() . ' is expected to be an object of class ' . $type['name'] . ' but is of type ' . gettype($data));
                }

                $this->context->pushClassMetadata($metadata);

                foreach ($metadata->preSerializeMethods as $method) {
                    $method->invoke($data);
                }

                $this->visitor->startVisitingObject($metadata, $data, $type);
                foreach ($metadata->propertyMetadata as $propertyMetadata) {
                    if (null !== $this->exclusionStrategy && $this->exclusionStrategy->shouldSkipProperty($propertyMetadata, $this->context)) {
                        continue;
                    }

                    if (null !== $this->expressionExclusionStrategy && $this->expressionExclusionStrategy->shouldSkipProperty($propertyMetadata, $this->context)) {
                        continue;
                    }

                    try {
                        $v = $this->accessor->getValue($data, $propertyMetadata, $this->context);
                    } catch (UninitializedPropertyException $e) {
                        continue;
                    }

                    if (null === $v && true !== $this->shouldSerializeNull) {
                        continue;
                    }

                    $this->context->pushPropertyMetadata($propertyMetadata);
                    $this->visitor->visitProperty($propertyMetadata, $v);
                    $this->context->popPropertyMetadata();
                }

                $this->afterVisitingObject($metadata, $data, $type);

                return $this->visitor->endVisitingObject($metadata, $data, $type);
        }