From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../traits/object/enforce-supertrait-projection.rs | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 tests/ui/traits/object/enforce-supertrait-projection.rs

(limited to 'tests/ui/traits/object/enforce-supertrait-projection.rs')

diff --git a/tests/ui/traits/object/enforce-supertrait-projection.rs b/tests/ui/traits/object/enforce-supertrait-projection.rs
new file mode 100644
index 000000000..2c9b41eea
--- /dev/null
+++ b/tests/ui/traits/object/enforce-supertrait-projection.rs
@@ -0,0 +1,24 @@
+trait SuperTrait {
+    type A;
+    type B;
+}
+
+trait Trait: SuperTrait<A = <Self as SuperTrait>::B> {}
+
+fn transmute<A, B>(x: A) -> B {
+    foo::<A, B, dyn Trait<A = A, B = B>>(x)
+    //~^ ERROR type mismatch resolving `<dyn Trait<B = B, A = A> as SuperTrait>::A == B`
+}
+
+fn foo<A, B, T: ?Sized>(x: T::A) -> B
+where
+    T: Trait<B = B>,
+{
+    x
+}
+
+static X: u8 = 0;
+fn main() {
+    let x = transmute::<&u8, &[u8; 1_000_000]>(&X);
+    println!("{:?}", x[100_000]);
+}
-- 
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