Merging upstream version 1.72.1+dfsg1.

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

1 files changed, 49 insertions, 0 deletions

diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs
new file mode 100644
index 000000000..92d8be6bb
--- /dev/null
+++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs
@@ -0,0 +1,49 @@
+// Tests that `~const` trait bounds can be used to specialize const trait impls.
+
+// check-pass
+
+#![feature(const_trait_impl)]
+#![feature(rustc_attrs)]
+#![feature(min_specialization)]
+
+#[const_trait]
+#[rustc_specialization_trait]
+trait Specialize {}
+
+#[const_trait]
+trait Foo {
+    fn foo();
+}
+
+impl<T> const Foo for T {
+    default fn foo() {}
+}
+
+impl<T> const Foo for T
+where
+    T: ~const Specialize,
+{
+    fn foo() {}
+}
+
+#[const_trait]
+trait Bar {
+    fn bar() {}
+}
+
+impl<T> const Bar for T
+where
+    T: ~const Foo,
+{
+    default fn bar() {}
+}
+
+impl<T> const Bar for T
+where
+    T: ~const Foo,
+    T: ~const Specialize,
+{
+    fn bar() {}
+}
+
+fn main() {}