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-rw-r--r--tests/ui/issues/issue-27901.rs11
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-27901.rs b/tests/ui/issues/issue-27901.rs
new file mode 100644
index 000000000..ffd90b689
--- /dev/null
+++ b/tests/ui/issues/issue-27901.rs
@@ -0,0 +1,11 @@
+// run-pass
+trait Stream { type Item; }
+impl<'a> Stream for &'a str { type Item = u8; }
+fn f<'s>(s: &'s str) -> (&'s str, <&'s str as Stream>::Item) {
+ (s, 42)
+}
+
+fn main() {
+ let fx = f as for<'t> fn(&'t str) -> (&'t str, <&'t str as Stream>::Item);
+ assert_eq!(fx("hi"), ("hi", 42));
+}