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/trait-upcasting/type-checking-test-1.rs | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 tests/ui/traits/trait-upcasting/type-checking-test-1.rs

(limited to 'tests/ui/traits/trait-upcasting/type-checking-test-1.rs')

diff --git a/tests/ui/traits/trait-upcasting/type-checking-test-1.rs b/tests/ui/traits/trait-upcasting/type-checking-test-1.rs
new file mode 100644
index 000000000..6bc9f4a75
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/type-checking-test-1.rs
@@ -0,0 +1,26 @@
+#![feature(trait_upcasting)]
+
+trait Foo: Bar<i32> + Bar<u32> {}
+trait Bar<T> {
+    fn bar(&self) -> Option<T> {
+        None
+    }
+}
+
+fn test_specific(x: &dyn Foo) {
+    let _ = x as &dyn Bar<i32>; // OK
+    let _ = x as &dyn Bar<u32>; // OK
+}
+
+fn test_unknown_version(x: &dyn Foo) {
+    let _ = x as &dyn Bar<_>; // Ambiguous
+                              //~^ ERROR non-primitive cast
+                              //~^^ ERROR the trait bound `&dyn Foo: Bar<_>` is not satisfied
+}
+
+fn test_infer_version(x: &dyn Foo) {
+    let a = x as &dyn Bar<_>; // OK
+    let _: Option<u32> = a.bar();
+}
+
+fn main() {}
-- 
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