From 631cd5845e8de329d0e227aaa707d7ea228b8f8f Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:20:29 +0200
Subject: Merging upstream version 1.70.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/traits/new-solver/projection-discr-kind.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 tests/ui/traits/new-solver/projection-discr-kind.rs

(limited to 'tests/ui/traits/new-solver/projection-discr-kind.rs')

diff --git a/tests/ui/traits/new-solver/projection-discr-kind.rs b/tests/ui/traits/new-solver/projection-discr-kind.rs
new file mode 100644
index 000000000..20296b287
--- /dev/null
+++ b/tests/ui/traits/new-solver/projection-discr-kind.rs
@@ -0,0 +1,18 @@
+// compile-flags: -Ztrait-solver=next
+
+// Check that `<T::Assoc as DiscriminantKind>::Discriminant` doesn't normalize
+// to itself and cause overflow/ambiguity.
+
+trait Foo {
+    type Assoc;
+}
+
+trait Bar {}
+fn needs_bar(_: impl Bar) {}
+
+fn foo<T: Foo>(x: T::Assoc) {
+    needs_bar(std::mem::discriminant(&x));
+    //~^ ERROR the trait bound `Discriminant<<T as Foo>::Assoc>: Bar` is not satisfied
+}
+
+fn main() {}
-- 
cgit v1.2.3