Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/test/ui/traits/issue-6334.rs b/src/test/ui/traits/issue-6334.rs
new file mode 100644
index 000000000..acf48da15
--- /dev/null
+++ b/src/test/ui/traits/issue-6334.rs
@@ -0,0 +1,46 @@
+// run-pass
+// Tests that everything still compiles and runs fine even when
+// we reorder the bounds.
+
+
+trait A {
+    fn a(&self) -> usize;
+}
+
+trait B {
+    fn b(&self) -> usize;
+}
+
+trait C {
+    fn combine<T:A+B>(&self, t: &T) -> usize;
+}
+
+struct Foo;
+
+impl A for Foo {
+    fn a(&self) -> usize { 1 }
+}
+
+impl B for Foo {
+    fn b(&self) -> usize { 2 }
+}
+
+struct Bar;
+
+impl C for Bar {
+    // Note below: bounds in impl decl are in reverse order.
+    fn combine<T:B+A>(&self, t: &T) -> usize {
+        (t.a() * 100) + t.b()
+    }
+}
+
+fn use_c<S:C, T:B+A>(s: &S, t: &T) -> usize {
+    s.combine(t)
+}
+
+pub fn main() {
+    let foo = Foo;
+    let bar = Bar;
+    let r = use_c(&bar, &foo);
+    assert_eq!(r, 102);
+}