Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

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

1 files changed, 30 insertions, 0 deletions

diff --git a/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.rs b/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.rs
new file mode 100644
index 000000000..7ea1c445d
--- /dev/null
+++ b/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.rs
@@ -0,0 +1,30 @@
+// rust-lang/rust#52059: Regardless of whether you are moving out of a
+// Drop type or just introducing an inadvertent alias via a borrow of
+// one of its fields, it is useful to be reminded of the significance
+// of the fact that the type implements Drop.
+
+pub struct S<'a> { url: &'a mut String }
+
+impl<'a> Drop for S<'a> { fn drop(&mut self) { } }
+
+fn finish_1(s: S) -> &mut String {
+    s.url
+}
+//~^^ ERROR borrow may still be in use when destructor runs
+
+fn finish_2(s: S) -> &mut String {
+    let p = &mut *s.url; p
+}
+//~^^ ERROR borrow may still be in use when destructor runs
+
+fn finish_3(s: S) -> &mut String {
+    let p: &mut _ = s.url; p
+}
+//~^^ ERROR borrow may still be in use when destructor runs
+
+fn finish_4(s: S) -> &mut String {
+    let p = s.url; p
+}
+//~^^ ERROR cannot move out of type `S<'_>`, which implements the `Drop` trait
+
+fn main() {}