Implement changes suggested by tmiasko and davidtwco

1 files changed, 23 insertions, 0 deletions

diff --git a/src/test/ui/structs-enums/struct-rec/mutual-struct-recursion.rs b/src/test/ui/structs-enums/struct-rec/mutual-struct-recursion.rs
new file mode 100644
index 00000000000..cca97f43eff
--- /dev/null
+++ b/src/test/ui/structs-enums/struct-rec/mutual-struct-recursion.rs
@@ -0,0 +1,23 @@
+struct A<T> {
+//~^ ERROR recursive type `A` has infinite size
+    x: T,
+    y: B<T>,
+}
+
+struct B<T> {
+//~^ ERROR recursive type `B` has infinite size
+    z: A<T>
+}
+
+struct C<T> {
+//~^ ERROR recursive type `C` has infinite size
+    x: T,
+    y: Option<Option<D<T>>>,
+}
+
+struct D<T> {
+//~^ ERROR recursive type `D` has infinite size
+    z: Option<Option<C<T>>>,
+}
+
+fn main() {}