Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 51 deletions

diff --git a/src/test/ui/transmutability/visibility/should_reject_if_dst_has_tricky_unreachable_field.rs b/src/test/ui/transmutability/visibility/should_reject_if_dst_has_tricky_unreachable_field.rs
deleted file mode 100644
index 662c32af1..000000000
--- a/src/test/ui/transmutability/visibility/should_reject_if_dst_has_tricky_unreachable_field.rs
+++ /dev/null
@@ -1,51 +0,0 @@
-// check-pass
-//! NOTE: This test documents a known-bug in the implementation of the
-//! transmutability trait. Once fixed, the above "check-pass" header should be
-//! removed, and an "ERROR cannot be safely transmuted" annotation should be added at the end
-//! of the line starting with `assert::is_transmutable`.
-//!
-//! Unless visibility is assumed, a transmutation should be rejected if the
-//! destination type contains an unreachable field (e.g., a public field with a
-//! private type). (This rule is distinct from type privacy, which still may
-//! forbid naming such types.)
-//!
-//! This test exercises a tricky-to-implement instance of this principle: the
-//! "pub-in-priv trick". In the below example, the type `dst::private::Zst` is
-//! unreachable from `Context`. Consequently, the transmute from `Src` to `Dst`
-//! SHOULD be rejected.
-
-#![crate_type = "lib"]
-#![feature(transmutability)]
-#![allow(dead_code)]
-
-mod assert {
-    use std::mem::BikeshedIntrinsicFrom;
-
-    pub fn is_transmutable<Src, Dst, Context>()
-    where
-        Dst: BikeshedIntrinsicFrom<Src, Context> // safety is NOT assumed
-    {}
-}
-
-mod src {
-    #[repr(C)] pub(in super) struct Zst;
-
-    #[repr(C)] pub(in super) struct Src {
-        pub(in super) field: Zst,
-    }
-}
-
-mod dst {
-    mod private {
-        #[repr(C)] pub struct Zst; // <- unreachable type
-    }
-
-    #[repr(C)] pub(in super) struct Dst {
-        pub(in super) field: private::Zst,
-    }
-}
-
-fn test() {
-    struct Context;
-    assert::is_transmutable::<src::Src, dst::Dst, Context>();
-}