validateValue() protected method

protected validateValue ( $value )
 protected function internalValidateValue(&$value)
 {
     $result = parent::validateValue($value);
     if (empty($result)) {
         if ($this->allowNamespace) {
             $result = $this->validateNsSeparator($value, 0, $this->leadingNamespaceSeparator);
         } else {
             if (!$this->allowNamespace && !$model->hasErrors()) {
                 if (strpos($model->{$attribute}, '\\') !== FALSE) {
                     $result = ['Namespace may not be specified', null];
                 }
             }
         }
     }
     return $result;
 }