blob: d7d40b739f50fa1206172a53fb9003f36bd3a82c [file] [log] [blame]
library test;
import 'dart:async';
T f<T>() => null;
class B<T> {
D<T> operator [](E<T> x) => null;
}
class C<U> extends B<Future<U>> {
E<Future<U>> operator [](Object x) => null;
void h() {}
}
class D<T> {}
class E<T> extends D<T> {}
main() {}