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, 49 insertions, 0 deletions

diff --git a/src/test/ui/pattern/bindings-after-at/borrowck-pat-by-copy-bindings-in-at.rs b/src/test/ui/pattern/bindings-after-at/borrowck-pat-by-copy-bindings-in-at.rs
new file mode 100644
index 000000000..0108861cf
--- /dev/null
+++ b/src/test/ui/pattern/bindings-after-at/borrowck-pat-by-copy-bindings-in-at.rs
@@ -0,0 +1,49 @@
+// check-pass
+
+// Test `Copy` bindings in the rhs of `@` patterns.
+
+#[derive(Copy, Clone)]
+struct C;
+
+fn mk_c() -> C { C }
+
+#[derive(Copy, Clone)]
+struct P<A, B>(A, B);
+
+enum E<A, B> { L(A), R(B) }
+
+fn main() {
+    let a @ b @ c @ d = C;
+    let a @ (b, c) = (C, mk_c());
+    let a @ P(b, P(c, d)) = P(mk_c(), P(C, C));
+    let a @ [b, c] = [C, C];
+    let a @ [b, .., c] = [C, mk_c(), C];
+    let a @ [b, mid @ .., c] = [C, mk_c(), C];
+    let a @ &(b, c) = &(C, C);
+    let a @ &(b, &P(c, d)) = &(mk_c(), &P(C, C));
+
+    fn foo(a @ [b, mid @ .., c]: [C; 3]) {}
+
+    use self::E::*;
+    match L(C) {
+        L(a) | R(a) => {
+            let a: C = a;
+            drop(a);
+            drop(a);
+        }
+    }
+    match R(&L(&mk_c())) {
+        L(L(&a)) | L(R(&a)) | R(L(&a)) | R(R(&a)) => {
+            let a: C = a;
+            drop(a);
+            drop(a);
+        }
+    }
+
+    match Ok(mk_c()) {
+        Ok(ref a @ b) | Err(b @ ref a) => {
+            let _: &C = a;
+            let _: C = b;
+        }
+    }
+}