| error[E0072]: recursive type `Expr` has infinite size | |
| --> $DIR/issue-32326.rs:5:1 | |
| | | |
| LL | enum Expr { | |
| | ^^^^^^^^^ | |
| LL | Plus(Expr, Expr), | |
| | ---- recursive without indirection | |
| | | |
| help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle | |
| | | |
| LL | Plus(Box<Expr>, Expr), | |
| | ++++ + | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0072`. |