From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/test/ui/traits/trait-upcasting/struct.rs | 174 +++++++++++++++++++++++++++
 1 file changed, 174 insertions(+)
 create mode 100644 src/test/ui/traits/trait-upcasting/struct.rs

(limited to 'src/test/ui/traits/trait-upcasting/struct.rs')

diff --git a/src/test/ui/traits/trait-upcasting/struct.rs b/src/test/ui/traits/trait-upcasting/struct.rs
new file mode 100644
index 000000000..0f3cb285b
--- /dev/null
+++ b/src/test/ui/traits/trait-upcasting/struct.rs
@@ -0,0 +1,174 @@
+// run-pass
+
+#![feature(trait_upcasting)]
+#![allow(incomplete_features)]
+
+use std::rc::Rc;
+use std::sync::Arc;
+
+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 test_box() {
+    let v = Box::new(1);
+
+    let baz: Box<dyn Baz> = v.clone();
+    assert_eq!(*baz, 1);
+    assert_eq!(baz.a(), 100);
+    assert_eq!(baz.b(), 200);
+    assert_eq!(baz.c(), 300);
+    assert_eq!(baz.z(), 11);
+    assert_eq!(baz.y(), 12);
+    assert_eq!(baz.w(), 21);
+
+    let baz: Box<dyn Baz> = v.clone();
+    let bar: Box<dyn Bar> = baz;
+    assert_eq!(*bar, 1);
+    assert_eq!(bar.a(), 100);
+    assert_eq!(bar.b(), 200);
+    assert_eq!(bar.z(), 11);
+    assert_eq!(bar.y(), 12);
+    assert_eq!(bar.w(), 21);
+
+    let baz: Box<dyn Baz> = v.clone();
+    let foo: Box<dyn Foo> = baz;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+
+    let baz: Box<dyn Baz> = v.clone();
+    let bar: Box<dyn Bar> = baz;
+    let foo: Box<dyn Foo> = bar;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+}
+
+fn test_rc() {
+    let v = Rc::new(1);
+
+    let baz: Rc<dyn Baz> = v.clone();
+    assert_eq!(*baz, 1);
+    assert_eq!(baz.a(), 100);
+    assert_eq!(baz.b(), 200);
+    assert_eq!(baz.c(), 300);
+    assert_eq!(baz.z(), 11);
+    assert_eq!(baz.y(), 12);
+    assert_eq!(baz.w(), 21);
+
+    let baz: Rc<dyn Baz> = v.clone();
+    let bar: Rc<dyn Bar> = baz;
+    assert_eq!(*bar, 1);
+    assert_eq!(bar.a(), 100);
+    assert_eq!(bar.b(), 200);
+    assert_eq!(bar.z(), 11);
+    assert_eq!(bar.y(), 12);
+    assert_eq!(bar.w(), 21);
+
+    let baz: Rc<dyn Baz> = v.clone();
+    let foo: Rc<dyn Foo> = baz;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+
+    let baz: Rc<dyn Baz> = v.clone();
+    let bar: Rc<dyn Bar> = baz;
+    let foo: Rc<dyn Foo> = bar;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+}
+
+fn test_arc() {
+    let v = Arc::new(1);
+
+    let baz: Arc<dyn Baz> = v.clone();
+    assert_eq!(*baz, 1);
+    assert_eq!(baz.a(), 100);
+    assert_eq!(baz.b(), 200);
+    assert_eq!(baz.c(), 300);
+    assert_eq!(baz.z(), 11);
+    assert_eq!(baz.y(), 12);
+    assert_eq!(baz.w(), 21);
+
+    let baz: Arc<dyn Baz> = v.clone();
+    let bar: Arc<dyn Bar> = baz;
+    assert_eq!(*bar, 1);
+    assert_eq!(bar.a(), 100);
+    assert_eq!(bar.b(), 200);
+    assert_eq!(bar.z(), 11);
+    assert_eq!(bar.y(), 12);
+    assert_eq!(bar.w(), 21);
+
+    let baz: Arc<dyn Baz> = v.clone();
+    let foo: Arc<dyn Foo> = baz;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+
+    let baz: Arc<dyn Baz> = v.clone();
+    let bar: Arc<dyn Bar> = baz;
+    let foo: Arc<dyn Foo> = bar;
+    assert_eq!(*foo, 1);
+    assert_eq!(foo.a(), 100);
+    assert_eq!(foo.z(), 11);
+    assert_eq!(foo.y(), 12);
+}
+
+fn main() {
+    test_box();
+    test_rc();
+    test_arc();
+}
-- 
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