fix rustdoc stack overflow on mutually recursive Deref

fix #85095

1 files changed, 22 insertions, 0 deletions

diff --git a/src/test/rustdoc/issue-85095.rs b/src/test/rustdoc/issue-85095.rs
new file mode 100644
index 00000000000..5c4a1da9e59
--- /dev/null
+++ b/src/test/rustdoc/issue-85095.rs
@@ -0,0 +1,22 @@
+use std::ops::Deref;
+
+pub struct A;
+pub struct B;
+
+// @has issue_85095/struct.A.html '//code' 'impl Deref for A'
+impl Deref for A {
+    type Target = B;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}
+
+// @has issue_85095/struct.B.html '//code' 'impl Deref for B'
+impl Deref for B {
+    type Target = A;
+
+    fn deref(&self) -> &Self::Target {
+        panic!()
+    }
+}