GraphQL\Validator\Rules\ScalarLeafs::requiredSubselectionMessage PHP Méthode

    static function requiredSubselectionMessage($field, $type)
    {
        return "Field \"{$field}\" of type \"{$type}\" must have a sub selection.";
    }

 private function missingObjSubselection($field, $type, $line, $column)
 {
     return FormattedError::create(ScalarLeafs::requiredSubselectionMessage($field, $type), [new SourceLocation($line, $column)]);
 }