| error[E0605]: non-primitive cast: `NonNullary` as `isize` |
| --> $DIR/cast-enum-to-primitive-error.rs:24:15 |
| | |
| LL | let val = v as isize; |
| | ^^^^^^^^^^ an `as` expression can be used to convert enum types to numeric types only if the enum type is unit-only or field-less |
| | |
| = note: see https://doc.rust-lang.org/reference/items/enumerations.html#casting for more information |
| help: consider using the `From` trait instead |
| | |
| LL - let val = v as isize; |
| LL + let val = isize::from(v); |
| | |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0605`. |