Merging upstream version 1.68.2+dfsg1.

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

1 files changed, 62 insertions, 0 deletions

diff --git a/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.rs b/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.rs
new file mode 100644
index 000000000..d36c7f81c
--- /dev/null
+++ b/tests/ui/rfc-2632-const-trait-impl/const-drop-fail.rs
@@ -0,0 +1,62 @@
+// revisions: stock precise
+#![feature(const_trait_impl)]
+#![feature(const_mut_refs)]
+#![cfg_attr(precise, feature(const_precise_live_drops))]
+
+use std::marker::{Destruct, PhantomData};
+
+struct NonTrivialDrop;
+
+impl Drop for NonTrivialDrop {
+    fn drop(&mut self) {
+        println!("Non trivial drop");
+    }
+}
+
+struct ConstImplWithDropGlue(NonTrivialDrop);
+
+impl const Drop for ConstImplWithDropGlue {
+    fn drop(&mut self) {}
+}
+
+#[const_trait]
+trait A { fn a() { } }
+
+impl A for NonTrivialDrop {}
+
+struct ConstDropImplWithBounds<T: ~const A>(PhantomData<T>);
+
+impl<T: ~const A> const Drop for ConstDropImplWithBounds<T> {
+    fn drop(&mut self) {
+        T::a();
+    }
+}
+
+const fn check<T: ~const Destruct>(_: T) {}
+
+macro_rules! check_all {
+    ($($exp:expr),*$(,)?) => {$(
+        const _: () = check($exp);
+    )*};
+}
+
+check_all! {
+    NonTrivialDrop,
+    //~^ ERROR can't drop
+    ConstImplWithDropGlue(NonTrivialDrop),
+    //~^ ERROR can't drop
+    ConstDropImplWithBounds::<NonTrivialDrop>(PhantomData),
+    //~^ ERROR the trait bound
+    //~| ERROR the trait bound
+}
+
+struct ConstDropImplWithNonConstBounds<T: A>(PhantomData<T>);
+
+impl<T: ~const A> const Drop for ConstDropImplWithNonConstBounds<T> {
+//~^ ERROR `Drop` impl requires `T: ~const A` but the struct it is implemented for does not
+    fn drop(&mut self) {
+        T::a();
+    }
+}
+
+fn main() {}