1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/higher-rank-trait-bounds/hrtb-parse.rs b/src/test/ui/higher-rank-trait-bounds/hrtb-parse.rs
new file mode 100644
index 000000000..1fab9758c
--- /dev/null
+++ b/src/test/ui/higher-rank-trait-bounds/hrtb-parse.rs
@@ -0,0 +1,36 @@
+// run-pass
+// Test that we can parse all the various places that a `for` keyword
+// can appear representing universal quantification.
+
+// pretty-expanded FIXME #23616
+
+#![allow(unused_variables)]
+#![allow(dead_code)]
+
+trait Get<A,R> {
+    fn get(&self, arg: A) -> R;
+}
+
+// Parse HRTB with explicit `for` in a where-clause:
+
+fn foo00<T>(t: T)
+    where T : for<'a> Get<&'a i32, &'a i32>
+{
+}
+
+fn foo01<T: for<'a> Get<&'a i32, &'a i32>>(t: T)
+{
+}
+
+// Parse HRTB with explicit `for` in various sorts of types:
+
+fn foo10(t: Box<dyn for<'a> Get<i32, i32>>) { }
+fn foo11(t: Box<dyn for<'a> Fn(i32) -> i32>) { }
+
+fn foo20(t: for<'a> fn(i32) -> i32) { }
+fn foo21(t: for<'a> unsafe fn(i32) -> i32) { }
+fn foo22(t: for<'a> extern "C" fn(i32) -> i32) { }
+fn foo23(t: for<'a> unsafe extern "C" fn(i32) -> i32) { }
+
+fn main() {
+}