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/rfcs/rfc-2005-default-binding-mode/constref.rs b/src/test/ui/rfcs/rfc-2005-default-binding-mode/constref.rs
new file mode 100644
index 000000000..d5bca6a24
--- /dev/null
+++ b/src/test/ui/rfcs/rfc-2005-default-binding-mode/constref.rs
@@ -0,0 +1,40 @@
+// run-pass
+const CONST_REF: &[u8; 3] = b"foo";
+
+trait Foo {
+    const CONST_REF_DEFAULT: &'static [u8; 3] = b"bar";
+    const CONST_REF: &'static [u8; 3];
+}
+
+impl Foo for i32 {
+    const CONST_REF: &'static [u8; 3] = b"jjj";
+}
+
+impl Foo for i64 {
+    const CONST_REF_DEFAULT: &'static [u8; 3] = b"ggg";
+    const CONST_REF: &'static [u8; 3] = b"fff";
+}
+
+// Check that (associated and free) const references are not mistaken for a
+// non-reference pattern (in which case they would be auto-dereferenced, making
+// the types mismatched).
+
+fn const_ref() -> bool {
+    let f = b"foo";
+    match f {
+        CONST_REF => true,
+        _ => false,
+    }
+}
+
+fn associated_const_ref() -> bool {
+    match (b"bar", b"jjj", b"ggg", b"fff") {
+        (i32::CONST_REF_DEFAULT, i32::CONST_REF, i64::CONST_REF_DEFAULT, i64::CONST_REF) => true,
+        _ => false,
+    }
+}
+
+pub fn main() {
+    assert!(const_ref());
+    assert!(associated_const_ref());
+}