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<?php
namespace Drupal\graphql\GraphQL\Type;
use Youshido\GraphQL\Type\Scalar\AbstractScalarType;
class UndefinedType extends AbstractScalarType {
/**
* {@inheritdoc}
*/
public function getName() {
return 'Undefined';
}
public function serialize($value) {
if (is_bool($value) || is_null($value) || is_scalar($value)) {
return $value;
if (is_object($value) && method_exists($value, '__toString')) {
return (string) $value;
if (is_array($value) || is_object($value)) {
return json_encode($value);
return '';
public function isValidValue($value) {
return TRUE;
drupal-graphql /
graphql
