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 --- src/test/ui/unsafe/ranged_ints2_const.rs | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 src/test/ui/unsafe/ranged_ints2_const.rs (limited to 'src/test/ui/unsafe/ranged_ints2_const.rs') diff --git a/src/test/ui/unsafe/ranged_ints2_const.rs b/src/test/ui/unsafe/ranged_ints2_const.rs new file mode 100644 index 000000000..56f5407bb --- /dev/null +++ b/src/test/ui/unsafe/ranged_ints2_const.rs @@ -0,0 +1,29 @@ +// revisions: mirunsafeck thirunsafeck +// [thirunsafeck]compile-flags: -Z thir-unsafeck + +#![feature(rustc_attrs)] + +#[rustc_layout_scalar_valid_range_start(1)] +#[repr(transparent)] +pub(crate) struct NonZero(pub(crate) T); +fn main() { +} + +const fn foo() -> NonZero { + let mut x = unsafe { NonZero(1) }; + let y = &mut x.0; //~ ERROR mutable references + //~^ ERROR mutation of layout constrained field is unsafe + unsafe { NonZero(1) } +} + +const fn bar() -> NonZero { + let mut x = unsafe { NonZero(1) }; + let y = unsafe { &mut x.0 }; //~ ERROR mutable references + unsafe { NonZero(1) } +} + +const fn boo() -> NonZero { + let mut x = unsafe { NonZero(1) }; + unsafe { let y = &mut x.0; } //~ ERROR mutable references + unsafe { NonZero(1) } +} -- cgit v1.2.3