1 files changed, 31 insertions, 0 deletions

diff --git a/tests/ui/issues/issue-48132.rs b/tests/ui/issues/issue-48132.rs
new file mode 100644
index 00000000000..f564aefe78c
--- /dev/null
+++ b/tests/ui/issues/issue-48132.rs
@@ -0,0 +1,31 @@
+// Regression test for #48132. This was failing due to problems around
+// the projection caching and dropck type enumeration.
+
+// run-pass
+
+#![allow(dead_code)]
+
+struct Inner<I, V> {
+    iterator: I,
+    item: V,
+}
+
+struct Outer<I: Iterator> {
+    inner: Inner<I, I::Item>,
+}
+
+fn outer<I>(iterator: I) -> Outer<I>
+where I: Iterator,
+      I::Item: Default,
+{
+    Outer {
+        inner: Inner {
+            iterator: iterator,
+            item: Default::default(),
+        }
+    }
+}
+
+fn main() {
+    outer(std::iter::once(&1).cloned());
+}