From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:03 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/traits/trait-upcasting/subtrait-method.rs | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 tests/ui/traits/trait-upcasting/subtrait-method.rs

(limited to 'tests/ui/traits/trait-upcasting/subtrait-method.rs')

diff --git a/tests/ui/traits/trait-upcasting/subtrait-method.rs b/tests/ui/traits/trait-upcasting/subtrait-method.rs
new file mode 100644
index 000000000..136d15af0
--- /dev/null
+++ b/tests/ui/traits/trait-upcasting/subtrait-method.rs
@@ -0,0 +1,69 @@
+#![feature(trait_upcasting)]
+
+trait Foo: PartialEq<i32> + std::fmt::Debug + Send + Sync {
+    fn a(&self) -> i32 {
+        10
+    }
+
+    fn z(&self) -> i32 {
+        11
+    }
+
+    fn y(&self) -> i32 {
+        12
+    }
+}
+
+trait Bar: Foo {
+    fn b(&self) -> i32 {
+        20
+    }
+
+    fn w(&self) -> i32 {
+        21
+    }
+}
+
+trait Baz: Bar {
+    fn c(&self) -> i32 {
+        30
+    }
+}
+
+impl Foo for i32 {
+    fn a(&self) -> i32 {
+        100
+    }
+}
+
+impl Bar for i32 {
+    fn b(&self) -> i32 {
+        200
+    }
+}
+
+impl Baz for i32 {
+    fn c(&self) -> i32 {
+        300
+    }
+}
+
+fn main() {
+    let baz: &dyn Baz = &1;
+
+    let bar: &dyn Bar = baz;
+    bar.c();
+    //~^ ERROR no method named `c` found for reference `&dyn Bar` in the current scope [E0599]
+
+    let foo: &dyn Foo = baz;
+    foo.b();
+    //~^ ERROR no method named `b` found for reference `&dyn Foo` in the current scope [E0599]
+    foo.c();
+    //~^ ERROR no method named `c` found for reference `&dyn Foo` in the current scope [E0599]
+
+    let foo: &dyn Foo = bar;
+    foo.b();
+    //~^ ERROR no method named `b` found for reference `&dyn Foo` in the current scope [E0599]
+    foo.c();
+    //~^ ERROR no method named `c` found for reference `&dyn Foo` in the current scope [E0599]
+}
-- 
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