toString method Null safety

  1. @override
String toString(
  1. {bool debugIncludeStack = false}
)
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({ bool debugIncludeStack = false }) {
  final StringBuffer buffer = StringBuffer();
  buffer.write('${objectRuntimeType(this, 'Ticker')}(');
  assert(() {
    buffer.write(debugLabel ?? '');
    return true;
  }());
  buffer.write(')');
  assert(() {
    if (debugIncludeStack) {
      buffer.writeln();
      buffer.writeln('The stack trace when the $runtimeType was actually created was:');
      FlutterError.defaultStackFilter(_debugCreationStack.toString().trimRight().split('\n')).forEach(buffer.writeln);
    }
    return true;
  }());
  return buffer.toString();
}