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error[E0204]: the trait `Copy` cannot be implemented for this type
--> $DIR/deep-bad-copy-reason.rs:38:24
|
LL | pub struct List<'tcx, T>(Interned<'tcx, ListS<T>>);
| ------------------------ this field does not implement `Copy`
...
LL | impl<'tcx, T> Copy for List<'tcx, T> {}
| ^^^^^^^^^^^^^
|
note: the `Copy` impl for `Interned<'tcx, ListS<T>>` requires that `OpaqueListContents: Sized`
--> $DIR/deep-bad-copy-reason.rs:26:26
|
LL | pub struct List<'tcx, T>(Interned<'tcx, ListS<T>>);
| ^^^^^^^^^^^^^^^^^^^^^^^^
error[E0277]: the size for values of type `OpaqueListContents` cannot be known at compilation time
--> $DIR/deep-bad-copy-reason.rs:26:26
|
LL | pub struct List<'tcx, T>(Interned<'tcx, ListS<T>>);
| ^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
|
= help: within `ListS<T>`, the trait `Sized` is not implemented for `OpaqueListContents`, which is required by `ListS<T>: Sized`
note: required because it appears within the type `ListS<T>`
--> $DIR/deep-bad-copy-reason.rs:7:12
|
LL | pub struct ListS<T> {
| ^^^^^
note: required by an implicit `Sized` bound in `Interned`
--> $DIR/deep-bad-copy-reason.rs:14:25
|
LL | pub struct Interned<'a, T>(&'a T);
| ^ required by the implicit `Sized` requirement on this type parameter in `Interned`
help: consider relaxing the implicit `Sized` restriction
|
LL | pub struct Interned<'a, T: ?Sized>(&'a T);
| ++++++++
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0204, E0277.
For more information about an error, try `rustc --explain E0204`.
|
