src/test/ui/structs-enums/struct-rec/mutual-struct-recursion.rs

   1 struct A<T> {
   2 //~^ ERROR recursive types `A` and `B` have infinite size
   3     x: T,
   4     y: B<T>,
   5 }
   6
   7 struct B<T> {
   8     z: A<T>
   9 }
  10
  11 struct C<T> {
  12 //~^ ERROR recursive types `C` and `D` have infinite size
  13     x: T,
  14     y: Option<Option<D<T>>>,
  15 }
  16
  17 struct D<T> {
  18     z: Option<Option<C<T>>>,
  19 }
  20
  21 fn main() {}