function ObjectNormalizer::extractAttributes

Overrides AbstractObjectNormalizer::extractAttributes

File

vendor/symfony/serializer/Normalizer/ObjectNormalizer.php, line 65

Class

ObjectNormalizer

Converts between objects and arrays using the PropertyAccess component.

Namespace

Symfony\Component\Serializer\Normalizer

Code

protected function extractAttributes(object $object, ?string $format = null, array $context = []) : array {
    if (\stdClass::class === $object::class) {
        return array_keys((array) $object);
    }
    // If not using groups, detect manually
    $attributes = [];
    // methods
    $class = ($this->objectClassResolver)($object);
    $reflClass = new \ReflectionClass($class);
    foreach ($reflClass->getMethods(\ReflectionMethod::IS_PUBLIC) as $reflMethod) {
        if (0 !== $reflMethod->getNumberOfRequiredParameters() || $reflMethod->isStatic() || $reflMethod->isConstructor() || $reflMethod->isDestructor()) {
            continue;
        }
        $name = $reflMethod->name;
        $attributeName = null;
        // ctype_lower check to find out if method looks like accessor but actually is not, e.g. hash, cancel
        if (3 < \strlen($name) && !ctype_lower($name[3]) && match ($name[0]) {    'g' => str_starts_with($name, 'get'),
            'h' => str_starts_with($name, 'has'),
            'c' => str_starts_with($name, 'can'),
            default => false,
        
        }) {
            // getters, hassers and canners
            $attributeName = substr($name, 3);
            if (!$reflClass->hasProperty($attributeName)) {
                $attributeName = lcfirst($attributeName);
            }
        }
        elseif ('is' !== $name && str_starts_with($name, 'is') && !ctype_lower($name[2])) {
            // issers
            $attributeName = substr($name, 2);
            if (!$reflClass->hasProperty($attributeName)) {
                $attributeName = lcfirst($attributeName);
            }
        }
        if (null !== $attributeName && $this->isAllowedAttribute($object, $attributeName, $format, $context)) {
            $attributes[$attributeName] = true;
        }
    }
    // properties
    foreach ($reflClass->getProperties() as $reflProperty) {
        if (!$reflProperty->isPublic()) {
            continue;
        }
        if ($reflProperty->isStatic() || !$this->isAllowedAttribute($object, $reflProperty->name, $format, $context)) {
            continue;
        }
        $attributes[$reflProperty->name] = true;
    }
    return array_keys($attributes);
}