toString method

@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 representation.

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.

Implementation

@override
String toString() {
  if (from == null) {
    return 'ChangeAdded{$to}';
  } else if (to == null) {
    return 'ChangeDeleted{$from}';
  } else {
    return 'ChangeModified{$from, $to}';
  }
}