toString method Null safety

String toString ()
override

Returns a string representation of this object.

Implementation

String toString() {
  String? name = this.name;
  String nameString = (name == null) ? "" : " ($name)";
  Object? message = this.message;
  var messageString = (message == null) ? "" : ": ${message}";
  String prefix = "$_errorName$nameString$messageString";
  if (!_hasValue) return prefix;
  // If we know the invalid value, we can try to describe the problem.
  String explanation = _errorExplanation;
  String errorValue = Error.safeToString(invalidValue);
  return "$prefix$explanation: $errorValue";
}