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, 29 insertions, 0 deletions

diff --git a/src/test/ui/specialization/specialization-assoc-fns.rs b/src/test/ui/specialization/specialization-assoc-fns.rs
new file mode 100644
index 000000000..cbfcb4719
--- /dev/null
+++ b/src/test/ui/specialization/specialization-assoc-fns.rs
@@ -0,0 +1,29 @@
+// run-pass
+
+// Test that non-method associated functions can be specialized
+
+#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
+
+trait Foo {
+    fn mk() -> Self;
+}
+
+impl<T: Default> Foo for T {
+    default fn mk() -> T {
+        T::default()
+    }
+}
+
+impl Foo for Vec<u8> {
+    fn mk() -> Vec<u8> {
+        vec![0]
+    }
+}
+
+fn main() {
+    let v1: Vec<i32> = Foo::mk();
+    let v2: Vec<u8> = Foo::mk();
+
+    assert!(v1.len() == 0);
+    assert!(v2.len() == 1);
+}