From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- ...low-hide-behind-indirect-unsafe-ptr-embedded.rs | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 src/test/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs (limited to 'src/test/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs') diff --git a/src/test/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs b/src/test/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs new file mode 100644 index 000000000..04da14c54 --- /dev/null +++ b/src/test/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs @@ -0,0 +1,26 @@ +// Test explores how `#[structral_match]` behaves in tandem with +// `*const` and `*mut` pointers. + +// run-pass + +#![warn(pointer_structural_match)] + +struct NoDerive(#[allow(unused_tuple_struct_fields)] i32); + +// This impl makes NoDerive irreflexive +// (which doesn't matter here because `<*const T>::eq` won't recur on `T`). +impl PartialEq for NoDerive { fn eq(&self, _: &Self) -> bool { false } } + +impl Eq for NoDerive { } + +#[derive(PartialEq, Eq)] +struct WrapEmbedded(*const NoDerive); + +const WRAP_UNSAFE_EMBEDDED: & &WrapEmbedded = & &WrapEmbedded(std::ptr::null()); + +fn main() { + match WRAP_UNSAFE_EMBEDDED { + WRAP_UNSAFE_EMBEDDED => { println!("WRAP_UNSAFE_EMBEDDED correctly matched itself"); } + _ => { panic!("WRAP_UNSAFE_EMBEDDED did not match itself"); } + } +} -- cgit v1.2.3