26 lines
889 B
Plaintext
26 lines
889 B
Plaintext
error: invalid `?` in type
|
|
--> $DIR/infinite-assoc.rs:12:39
|
|
|
|
|
LL | struct A((A, <S as Trait>::T<NOT_EXIST?>));
|
|
| ^ `?` is only allowed on expressions, not types
|
|
|
|
|
help: if you meant to express that the type might not contain a value, use the `Option` wrapper type
|
|
|
|
|
LL | struct A((A, <S as Trait>::T<Option<NOT_EXIST>>));
|
|
| +++++++ ~
|
|
|
|
error[E0072]: recursive type `A` has infinite size
|
|
--> $DIR/infinite-assoc.rs:12:1
|
|
|
|
|
LL | struct A((A, <S as Trait>::T<NOT_EXIST?>));
|
|
| ^^^^^^^^ - recursive without indirection
|
|
|
|
|
help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
|
|
|
|
|
LL | struct A((Box<A>, <S as Trait>::T<NOT_EXIST?>));
|
|
| ++++ +
|
|
|
|
error: aborting due to 2 previous errors
|
|
|
|
For more information about this error, try `rustc --explain E0072`.
|