Merging upstream version 1.71.1+dfsg1.

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

1 files changed, 24 insertions, 0 deletions

diff --git a/tests/ui/nll/issue-30438-b.rs b/tests/ui/nll/issue-30438-b.rs
new file mode 100644
index 000000000..79510cdb6
--- /dev/null
+++ b/tests/ui/nll/issue-30438-b.rs
@@ -0,0 +1,24 @@
+// Modified regression test for Issue #30438 that exposed an
+// independent issue (see discussion on ticket).
+
+use std::ops::Index;
+
+struct Test<'a> {
+    s: &'a String
+}
+
+impl <'a> Index<usize> for Test<'a> {
+    type Output = Test<'a>;
+    fn index(&self, _: usize) -> &Self::Output {
+        &Test { s: &self.s}
+        //~^ ERROR: cannot return reference to temporary value
+    }
+}
+
+fn main() {
+    let s = "Hello World".to_string();
+    let test = Test{s: &s};
+    let r = &test[0];
+    println!("{}", test.s); // OK since test is valid
+    println!("{}", r.s); // Segfault since value pointed by r has already been dropped
+}