1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-53119.rs b/tests/ui/nll/issue-53119.rs
new file mode 100644
index 000000000..03c9c071c
--- /dev/null
+++ b/tests/ui/nll/issue-53119.rs
@@ -0,0 +1,23 @@
+// check-pass
+
+use std::ops::Deref;
+
+pub struct TypeFieldIterator<'a, T: 'a> {
+    _t: &'a T,
+}
+
+pub struct Type<Id, T> {
+    _types: Vec<(Id, T)>,
+}
+
+impl<'a, Id: 'a, T> Iterator for TypeFieldIterator<'a, T>
+where T: Deref<Target = Type<Id, T>> {
+    type Item = &'a (Id, T);
+
+    fn next(&mut self) -> Option<&'a (Id, T)> {
+        || self.next();
+        None
+    }
+}
+
+fn main() { }