rebuild method

R rebuild()

Implementation

R rebuild() {
  _value = wrapBuild(_build);
  triggerPostBuildCallbacks();
  for (final entry in List.of(_waiting)) {
    if (entry.predicate(_value)) {
      _waiting.remove(entry);
      entry.completer.complete();
    }
  }
  _needsBuild = false;
  return _value;
}