tests/ui/structs-enums/struct-rec/mutual-struct-recursion.stderr

   1 error[E0072]: recursive types `A` and `B` have infinite size
   2   --> $DIR/mutual-struct-recursion.rs:1:1
   3    |
   4 LL | struct A<T> {
   5    | ^^^^^^^^^^^
   6 ...
   7 LL |     y: B<T>,
   8    |        ---- recursive without indirection
   9 ...
  10 LL | struct B<T> {
  11    | ^^^^^^^^^^^
  12 LL |     z: A<T>
  13    |        ---- recursive without indirection
  14    |
  15 help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
  16    |
  17 LL ~     y: Box<B<T>>,
  18 LL | }
  19 LL |
  20 LL | struct B<T> {
  21 LL ~     z: Box<A<T>>
  22    |
  23
  24 error[E0072]: recursive types `C` and `D` have infinite size
  25   --> $DIR/mutual-struct-recursion.rs:11:1
  26    |
  27 LL | struct C<T> {
  28    | ^^^^^^^^^^^
  29 ...
  30 LL |     y: Option<Option<D<T>>>,
  31    |                      ---- recursive without indirection
  32 ...
  33 LL | struct D<T> {
  34    | ^^^^^^^^^^^
  35 LL |     z: Option<Option<C<T>>>,
  36    |                      ---- recursive without indirection
  37    |
  38 help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
  39    |
  40 LL ~     y: Option<Option<Box<D<T>>>>,
  41 LL | }
  42 LL |
  43 LL | struct D<T> {
  44 LL ~     z: Option<Option<Box<C<T>>>>,
  45    |
  46
  47 error: aborting due to 2 previous errors
  48
  49 For more information about this error, try `rustc --explain E0072`.