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() {
  final posStr = positionalFields.join(', ');
  final namedStr =
      namedFields.entries.map((e) => '${e.key}: ${e.value}').join(', ');
  final parts = [
    if (posStr.isNotEmpty) posStr,
    if (namedStr.isNotEmpty) namedStr
  ];
  return '(${parts.join(', ')})';
}