1. override
String toString()

Returns a string representation of this object.

Source 

@override
String toString() {
  StringBuffer buffer = new StringBuffer();
  buffer.write('$runtimeType($rect');
  if (transform != null)
    buffer.write('; $transform');
  for (SemanticsAction action in SemanticsAction.values.values) {
    if ((actions & action.index) != 0)
      buffer.write('; $action');
  }
  for (SemanticsFlags flag in SemanticsFlags.values.values) {
    if ((flags & flag.index) != 0)
      buffer.write('; $flag');
  }
  if (label.isNotEmpty)
    buffer.write('; "$label"');
  buffer.write(')');
  return buffer.toString();
}