From e3f04de3d430c70e95676a5a7e9028031e9244fb Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume.gomez@huawei.com>
Date: Thu, 3 Mar 2022 11:32:07 +0100
Subject: [PATCH] Add test for higher kinded functions generated by macros

---
 .../rustdoc/macro-higher-kinded-function.rs   | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 src/test/rustdoc/macro-higher-kinded-function.rs

diff --git a/src/test/rustdoc/macro-higher-kinded-function.rs b/src/test/rustdoc/macro-higher-kinded-function.rs
new file mode 100644
index 0000000000000..02a4305644e7d
--- /dev/null
+++ b/src/test/rustdoc/macro-higher-kinded-function.rs
@@ -0,0 +1,21 @@
+#![crate_name = "foo"]
+
+pub struct TyCtxt<'tcx>(&'tcx u8);
+
+macro_rules! gen {
+    ($(($name:ident, $tcx:lifetime, [$k:ty], [$r:ty]))*) => {
+        pub struct Providers {
+            $(pub $name: for<$tcx> fn(TyCtxt<$tcx>, $k) -> $r,)*
+        }
+    }
+}
+
+// @has 'foo/struct.Providers.html'
+// @has - '//*[@class="docblock item-decl"]//code' "pub a: for<'tcx> fn(_: TyCtxt<'tcx>, _: u8) -> i8,"
+// @has - '//*[@class="docblock item-decl"]//code' "pub b: for<'tcx> fn(_: TyCtxt<'tcx>, _: u16) -> i16,"
+// @has - '//*[@id="structfield.a"]/code' "a: for<'tcx> fn(_: TyCtxt<'tcx>, _: u8) -> i8"
+// @has - '//*[@id="structfield.b"]/code' "b: for<'tcx> fn(_: TyCtxt<'tcx>, _: u16) -> i16"
+gen! {
+    (a, 'tcx, [u8], [i8])
+    (b, 'tcx, [u16], [i16])
+}