1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/traits/object/issue-44454-2.rs b/tests/ui/traits/object/issue-44454-2.rs
new file mode 100644
index 000000000..f5178bcdb
--- /dev/null
+++ b/tests/ui/traits/object/issue-44454-2.rs
@@ -0,0 +1,22 @@
+// Taken from https://github.com/rust-lang/rust/issues/44454#issuecomment-1175925928
+
+trait Trait<ARG: 'static>: 'static {
+    type Assoc: AsRef<str>;
+}
+
+fn hr<T: ?Sized, ARG>(x: T::Assoc) -> Box<dyn AsRef<str> + 'static>
+where
+    T: Trait<ARG>
+{
+    Box::new(x)
+}
+
+fn extend_lt<'a>(x: &'a str) -> Box<dyn AsRef<str> + 'static> {
+    type DynTrait = dyn for<'a> Trait<&'a str, Assoc = &'a str>;
+    hr::<DynTrait, _>(x) //~ ERROR: borrowed data escapes outside of function
+}
+
+fn main() {
+    let extended = extend_lt(&String::from("hello"));
+    println!("{}", extended.as_ref().as_ref());
+}