rustdoc: Properly clean fn params in all contexts

1 files changed, 12 insertions, 0 deletions

diff --git a/tests/rustdoc/inline_cross/fn-ptr-ty.rs b/tests/rustdoc/inline_cross/fn-ptr-ty.rs
new file mode 100644
index 00000000000..01059622521
--- /dev/null
+++ b/tests/rustdoc/inline_cross/fn-ptr-ty.rs
@@ -0,0 +1,12 @@
+// Make sure that we print the higher-ranked parameters of cross-crate function pointer types.
+// They should be rendered exactly as the user wrote it, i.e., in source order and with unused
+// parameters present, not stripped.
+
+//@ aux-crate:fn_ptr_ty=fn-ptr-ty.rs
+//@ edition: 2021
+#![crate_name = "user"]
+
+//@ has user/type.F.html
+//@ has - '//*[@class="rust item-decl"]//code' \
+//     "for<'z, 'a, '_unused> fn(&'z for<'b> fn(&'b str), &'a ()) -> &'a ();"
+pub use fn_ptr_ty::F;