1 error[E0072]: recursive type `List` has infinite size
2 --> $DIR/recursive-enum.rs:1:1
4 LL | enum List<T> { Cons(T, List<T>), Nil }
5 | ^^^^^^^^^^^^ ------- recursive without indirection
7 | recursive type has infinite size
9 help: insert some indirection to make `List` representable
11 LL | enum List<T> { Cons(T, Box<List<T>>), Nil }
13 LL | enum List<T> { Cons(T, Rc<List<T>>), Nil }
15 LL | enum List<T> { Cons(T, &List<T>), Nil }
18 error: aborting due to previous error
20 For more information about this error, try `rustc --explain E0072`.