check the recursion limit when finding struct tail

1 files changed, 10 insertions, 0 deletions

diff --git a/src/test/ui/infinite/infinite-struct.rs b/src/test/ui/infinite/infinite-struct.rs
new file mode 100644
index 00000000000..70a203ea6e8
--- /dev/null
+++ b/src/test/ui/infinite/infinite-struct.rs
@@ -0,0 +1,10 @@
+struct Take(Take);
+//~^ ERROR has infinite size
+//~| ERROR cycle detected
+
+// check that we don't hang trying to find the tail of a recursive struct (#79437)
+fn foo() -> Take {
+    Take(loop {})
+}
+
+fn main() {}