| library test; | |
| import 'dart:async'; | |
| class MyFuture<T> implements Future<T> { | |
| MyFuture() {} | |
| MyFuture.value(T x) {} | |
| dynamic noSuchMethod(invocation) => null; | |
| MyFuture<S> then<S>(FutureOr<S> f(T x), {Function onError}) => null; | |
| } | |
| void test() {} | |
| main() {} |