From dc0db358abe19481e475e10c32149b53370f1a1c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 30 May 2024 05:57:31 +0200
Subject: Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../issue-95186-specialize-on-tilde-const.rs       | 49 ++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs

(limited to 'tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/issue-95186-specialize-on-tilde-const.rs')

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() {}
-- 
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