toString method

  1. @override
String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string represetion.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.


String toString() {
  final sb = StringBuffer();
  sb.write('Database exception $code ("$name")');
  final message = this.message;
  if (message != null) {
    sb.write('\n  message = ');
    sb.write(message.replaceAll('\n', '\n    '));
  final document = this.document;
  if (document != null) {
    sb.write('\n  document = ');
    sb.write(document.toString().replaceAll('\n', '\n    '));
  final error = this.error;
  if (error != null) {
    sb.write('\n  error = ');
    sb.write(error.toString().replaceAll('\n', '\n    '));
  return sb.toString();