enum E1 { one(1), two.named(2); final int foo; const E1(this.foo); const E1.named(int value) : foo = value; }
enum E2<X, Y> { one<int, String>(1, "one"), two.named("two", 2), three.named("three", "three"); final X foo; final Y bar; const E2(this.foo, this.bar); const E2.named(Y this.bar, X this.foo); }
main() {}