pkg/front_end/testcases/records/issue51940.dart.textual_outline.expect

typedef Parser<T> = (Result<T> result, String next) Function(String input);

sealed class Result<T> {
  const Result();
}

final class Ok<T> extends Result<T> {
  const Ok(this.value);
  final T value;
}

final class Error<T> extends Result<T> {
  const Error(this.error);
  final String error;
}

Parser<void> not(Parser<dynamic> parser) {}