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() {
  String txt = string;
  if (txt == '') {
    var uri = dataUri;
    if (uri != null) {
      txt = uri.toString();
      string = txt;
    }
    assert(uri != null, 'failed to encode data uri');
  }
  return txt;
}