| use std::collections::BTreeSet; | |
| #[derive(Hash)] | |
| pub enum ElemDerived { //~ ERROR recursive type `ElemDerived` has infinite size | |
| A(ElemDerived) | |
| } | |
| pub enum Elem { | |
| Derived(ElemDerived) | |
| } | |
| pub struct Set(BTreeSet<Elem>); | |
| impl Set { | |
| pub fn into_iter(self) -> impl Iterator<Item = Elem> { | |
| self.0.into_iter() | |
| } | |
| } | |
| fn main() {} |