runGuarded function

Future<void> runGuarded(List<Future<void> Function()> cleanups, void onError(Object error, StackTrace stackTrace))

Runs each cleanup in cleanups in order, routing any thrown error to onError and never re-throwing.

Used in a render's finally so a failure in the work being torn down (the capture or encode) is never masked by a failure in the teardown itself; a cleanup error is reported, not propagated.

Implementation

Future<void> runGuarded(
  List<Future<void> Function()> cleanups,
  void Function(Object error, StackTrace stackTrace) onError,
) async {
  for (final cleanup in cleanups) {
    try {
      await cleanup();
    } on Object catch (error, stackTrace) {
      onError(error, stackTrace);
    }
  }
}