Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/ui/variance/variance-use-contravariant-struct-2.rs b/tests/ui/variance/variance-use-contravariant-struct-2.rs
new file mode 100644
index 000000000..d4b2d0834
--- /dev/null
+++ b/tests/ui/variance/variance-use-contravariant-struct-2.rs
@@ -0,0 +1,17 @@
+// Test various uses of structs with distinct variances to make sure
+// they permit lifetimes to be approximated as expected.
+
+#![allow(dead_code)]
+// build-pass (FIXME(62277): could be check-pass?)
+
+struct SomeStruct<T>(fn(T));
+
+fn bar<'min,'max>(v: SomeStruct<&'min ()>)
+                  -> SomeStruct<&'max ()>
+    where 'max : 'min
+{
+    v
+}
+
+
+fn main() { }