original_string: protected function buildErrorResponse($error, $code = null)
      {
          if ($code !== null && (!is_int($code) || $code < 400)) {
              $code = null;
          }
          if (is_object($error)) {
              if ($error instanceof AccessDeniedException) {
                  $error = $error->getMessage();
                  if ($code === null) {
                      $code = Response::HTTP_UNAUTHORIZED;
                  }
              } elseif ($error instanceof UserMessageException) {
                  if ($error->getCode() >= 400) {
                      $code = $error->getCode();
                  }
                  $error = $error->getMessage();
              } elseif ($error instanceof Exception || $error instanceof Throwable) {
                  $error = t('An unexpected error occurred');
              } elseif (is_callable([$error, '__toString'])) {
                  $error = (string) $error;
              } else {
                  $error = get_class($error);
              }
          }
          if ($code === null) {
              $code = Response::HTTP_INTERNAL_SERVER_ERROR;
          }
  
          return $this->getResponseFactory()->create(
              $error,
              $code,
              [
                  'Content-Type' => 'text/plain; charset=UTF-8',
              ]
          );
      }
code: protected function buildErrorResponse($error, $code = null)
      {
          if ($code !== null && (!is_int($code) || $code < 400)) {
              $code = null;
          }
          if (is_object($error)) {
              if ($error instanceof AccessDeniedException) {
                  $error = $error->getMessage();
                  if ($code === null) {
                      $code = Response::HTTP_UNAUTHORIZED;
                  }
              } elseif ($error instanceof UserMessageException) {
                  if ($error->getCode() >= 400) {
                      $code = $error->getCode();
                  }
                  $error = $error->getMessage();
              } elseif ($error instanceof Exception || $error instanceof Throwable) {
                  $error = t('An unexpected error occurred');
              } elseif (is_callable([$error, '__toString'])) {
                  $error = (string) $error;
              } else {
                  $error = get_class($error);
              }
          }
          if ($code === null) {
              $code = Response::HTTP_INTERNAL_SERVER_ERROR;
          }
  
          return $this->getResponseFactory()->create(
              $error,
              $code,
              [
                  'Content-Type' => 'text/plain; charset=UTF-8',
              ]
          );
      }
code_tokens: protected function buildErrorResponse ( $ error , $ code = null ) { if ( $ code !== null && ( ! is_int ( $ code ) || $ code < 400 ) ) { $ code = null ; } if ( is_object ( $ error ) ) { if ( $ error instanceof AccessDeniedException ) { $ error = $ error -> getMessage ( ) ; if ( $ code === null ) { $ code = Response :: HTTP_UNAUTHORIZED ; } } elseif ( $ error instanceof UserMessageException ) { if ( $ error -> getCode ( ) >= 400 ) { $ code = $ error -> getCode ( ) ; } $ error = $ error -> getMessage ( ) ; } elseif ( $ error instanceof Exception || $ error instanceof Throwable ) { $ error = t ( 'An unexpected error occurred' ) ; } elseif ( is_callable ( [ $ error , '__toString' ] ) ) { $ error = ( string ) $ error ; } else { $ error = get_class ( $ error ) ; } } if ( $ code === null ) { $ code = Response :: HTTP_INTERNAL_SERVER_ERROR ; } return $ this -> getResponseFactory ( ) -> create ( $ error , $ code , [ 'Content-Type' => 'text/plain; charset=UTF-8' , ] ) ; }
docstring: Build an error response.
  
  @param string|Exception|Throwable $error
  @param int $code
  
  @return Response
docstring_tokens: Build an error response .