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, 24 insertions, 0 deletions

diff --git a/src/test/ui/consts/const-multi-ref.rs b/src/test/ui/consts/const-multi-ref.rs
new file mode 100644
index 000000000..7e0f1a812
--- /dev/null
+++ b/src/test/ui/consts/const-multi-ref.rs
@@ -0,0 +1,24 @@
+// Ensure that we point the user to the erroneous borrow but not to any subsequent borrows of that
+// initial one.
+
+const _: i32 = {
+    let mut a = 5;
+    let p = &mut a; //~ ERROR mutable references are not allowed in constants
+
+    let reborrow = {p};
+    let pp = &reborrow;
+    let ppp = &pp;
+    ***ppp
+};
+
+const _: std::cell::Cell<i32> = {
+    let mut a = std::cell::Cell::new(5);
+    let p = &a; //~ ERROR borrowed element may contain interior mutability
+
+    let reborrow = {p};
+    let pp = &reborrow;
+    let ppp = &pp;
+    a
+};
+
+fn main() {}