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, 40 insertions, 0 deletions

diff --git a/src/test/ui/traits/alias/import.rs b/src/test/ui/traits/alias/import.rs
new file mode 100644
index 000000000..802a8f156
--- /dev/null
+++ b/src/test/ui/traits/alias/import.rs
@@ -0,0 +1,40 @@
+// run-pass
+
+#![feature(trait_alias)]
+
+mod inner {
+    pub trait Foo {
+        fn foo(&self);
+    }
+
+    pub struct Qux;
+
+    impl Foo for Qux {
+        fn foo(&self) {}
+    }
+
+    pub trait Bar = Foo;
+}
+
+mod two {
+    pub trait A {
+        fn foo();
+    }
+
+    impl A for u8 {
+        fn foo() {}
+    }
+}
+
+// Import only the alias, not the `Foo` trait.
+use inner::{Bar, Qux};
+
+// Declaring an alias also brings in aliased methods.
+trait Two = two::A;
+
+fn main() {
+    let q = Qux;
+    q.foo(); // From Bar.
+
+    u8::foo(); // From A.
+}