From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/traits/object/with-lifetime-bound.rs | 34 ++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 src/test/ui/traits/object/with-lifetime-bound.rs

(limited to 'src/test/ui/traits/object/with-lifetime-bound.rs')

diff --git a/src/test/ui/traits/object/with-lifetime-bound.rs b/src/test/ui/traits/object/with-lifetime-bound.rs
new file mode 100644
index 000000000..05aab5e3b
--- /dev/null
+++ b/src/test/ui/traits/object/with-lifetime-bound.rs
@@ -0,0 +1,34 @@
+// run-pass
+// Uncovered during work on new scoping rules for safe destructors
+// as an important use case to support properly.
+
+
+pub struct E<'a> {
+    pub f: &'a u8,
+}
+impl<'b> E<'b> {
+    pub fn m(&self) -> &'b u8 { self.f }
+}
+
+pub struct P<'c> {
+    pub g: &'c u8,
+}
+pub trait M {
+    fn n(&self) -> u8;
+}
+impl<'d> M for P<'d> {
+    fn n(&self) -> u8 { *self.g }
+}
+
+fn extension<'e>(x: &'e E<'e>) -> Box<dyn M+'e> {
+    loop {
+        let p = P { g: x.m() };
+        return Box::new(p) as Box<dyn M+'e>;
+    }
+}
+
+fn main() {
+    let w = E { f: &10 };
+    let o = extension(&w);
+    assert_eq!(o.n(), 10);
+}
-- 
cgit v1.2.3