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 label = action == null
      ? '${store.runtimeType}'
      : '${store.runtimeType}.$action';
  final buffer = StringBuffer('[Orbit] $label');
  if (before != null && after != null) {
    final changed = diff;
    buffer.write(changed.isEmpty
        ? ' (no field changes)'
        : ' \u2014 ${changed.entries.map((e) => '${e.key}: ${e.value.$1} \u2192 ${e.value.$2}').join(', ')}');
  }
  buffer.write(
      ' \u2014 notified $listenerCount listener${listenerCount == 1 ? '' : 's'}');
  if (error != null) {
    buffer.write(' \u2014 threw $error');
  }
  return buffer.toString();
}