toString method

  1. @override
String toString()
override

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 sb = StringBuffer();
  sb.write('  ' * depth);
  if (ruleName != null) sb.write('$ruleName: ');
  if (lexeme != null) sb.write('"$lexeme"');
  if (element != null) sb.write(' ($element)');
  if (!result.success) sb.write(' <FAILED>');
  return sb.toString();
}