Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 42 insertions, 0 deletions

diff --git a/tests/ui/consts/promoted_const_call5.rs b/tests/ui/consts/promoted_const_call5.rs
new file mode 100644
index 000000000..3ac8d358c
--- /dev/null
+++ b/tests/ui/consts/promoted_const_call5.rs
@@ -0,0 +1,42 @@
+#![feature(rustc_attrs)]
+#![feature(staged_api)]
+#![stable(feature = "a", since = "1.0.0")]
+
+#[rustc_promotable]
+#[stable(feature = "a", since = "1.0.0")]
+#[rustc_const_stable(feature = "a", since = "1.0.0")]
+pub const fn id<T>(x: &'static T) -> &'static T { x }
+
+#[rustc_promotable]
+#[stable(feature = "a", since = "1.0.0")]
+#[rustc_const_stable(feature = "a", since = "1.0.0")]
+pub const fn new_string() -> String {
+    String::new()
+}
+
+#[rustc_promotable]
+#[stable(feature = "a", since = "1.0.0")]
+#[rustc_const_stable(feature = "a", since = "1.0.0")]
+pub const fn new_manually_drop<T>(t: T) -> std::mem::ManuallyDrop<T>  {
+    std::mem::ManuallyDrop::new(t)
+}
+
+
+const C: () = {
+    let _: &'static _ = &id(&new_string());
+    //~^ ERROR destructor of `String` cannot be evaluated at compile-time
+    //~| ERROR: temporary value dropped while borrowed
+    //~| ERROR: temporary value dropped while borrowed
+
+    let _: &'static _ = &new_manually_drop(new_string());
+    //~^ ERROR: temporary value dropped while borrowed
+};
+
+fn main() {
+    let _: &'static _ = &id(&new_string());
+    //~^ ERROR: temporary value dropped while borrowed
+    //~| ERROR: temporary value dropped while borrowed
+
+    let _: &'static _ = &new_manually_drop(new_string());
+    //~^ ERROR: temporary value dropped while borrowed
+}