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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
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| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs')
| -rw-r--r-- | tests/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs b/tests/ui/rfc-1445-restrict-constants-in-patterns/allow-hide-behind-indirect-unsafe-ptr-embedded.rs new file mode 100644 index 00000000000..04da14c5419 --- /dev/null +++ b/tests/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"); } + } +} |
