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Rename assertion macro

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This commit is contained in:
Oli Scherer 2022-07-11 10:31:21 +00:00
parent af8536e32f
commit fef596f6a2
1 changed files with 27 additions and 27 deletions
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54
src/test/ui/layout/unsafe-cell-hides-niche.rs
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@ -19,46 +19,46 @@ struct Transparent<T>(T);
struct NoNiche<T>(UnsafeCell<T>);
// Overwriting the runtime assertion and making it a compile-time assertion
macro_rules! assert_eq {
macro_rules! assert_size {
($a:ty, $b:literal) => {{
const _: () = assert!(std::mem::size_of::<$a>() == $b);
}};
}
fn main() {
assert_eq!(Option<Wrapper<u32>>, 8);
assert_eq!(Option<Wrapper<N32>>, 4); // (✓ niche opt)
assert_eq!(Option<Transparent<u32>>, 8);
assert_eq!(Option<Transparent<N32>>, 4); // (✓ niche opt)
assert_eq!(Option<NoNiche<u32>>, 8);
assert_eq!(Option<NoNiche<N32>>, 8); // (✗ niche opt)
assert_size!(Option<Wrapper<u32>>, 8);
assert_size!(Option<Wrapper<N32>>, 4); // (✓ niche opt)
assert_size!(Option<Transparent<u32>>, 8);
assert_size!(Option<Transparent<N32>>, 4); // (✓ niche opt)
assert_size!(Option<NoNiche<u32>>, 8);
assert_size!(Option<NoNiche<N32>>, 8); // (✗ niche opt)
assert_eq!(Option<UnsafeCell<u32>>, 8);
assert_eq!(Option<UnsafeCell<N32>>, 8); // (✗ niche opt)
assert_size!(Option<UnsafeCell<u32>>, 8);
assert_size!(Option<UnsafeCell<N32>>, 8); // (✗ niche opt)
assert_eq!( UnsafeCell<&()> , 8);
assert_eq!(Option<UnsafeCell<&()>>, 16); // (✗ niche opt)
assert_eq!( Cell<&()> , 8);
assert_eq!(Option< Cell<&()>>, 16); // (✗ niche opt)
assert_eq!( RefCell<&()> , 16);
assert_eq!(Option< RefCell<&()>>, 24); // (✗ niche opt)
assert_eq!( RwLock<&()> , 24);
assert_eq!(Option< RwLock<&()>>, 32); // (✗ niche opt)
assert_eq!( Mutex<&()> , 16);
assert_eq!(Option< Mutex<&()>>, 24); // (✗ niche opt)
assert_size!( UnsafeCell<&()> , 8);
assert_size!(Option<UnsafeCell<&()>>, 16); // (✗ niche opt)
assert_size!( Cell<&()> , 8);
assert_size!(Option< Cell<&()>>, 16); // (✗ niche opt)
assert_size!( RefCell<&()> , 16);
assert_size!(Option< RefCell<&()>>, 24); // (✗ niche opt)
assert_size!( RwLock<&()> , 24);
assert_size!(Option< RwLock<&()>>, 32); // (✗ niche opt)
assert_size!( Mutex<&()> , 16);
assert_size!(Option< Mutex<&()>>, 24); // (✗ niche opt)
assert_eq!( UnsafeCell<&[i32]> , 16);
assert_eq!(Option<UnsafeCell<&[i32]>>, 24); // (✗ niche opt)
assert_eq!( UnsafeCell<(&(), &())> , 16);
assert_eq!(Option<UnsafeCell<(&(), &())>>, 24); // (✗ niche opt)
assert_size!( UnsafeCell<&[i32]> , 16);
assert_size!(Option<UnsafeCell<&[i32]>>, 24); // (✗ niche opt)
assert_size!( UnsafeCell<(&(), &())> , 16);
assert_size!(Option<UnsafeCell<(&(), &())>>, 24); // (✗ niche opt)
trait Trait {}
assert_eq!( UnsafeCell<&dyn Trait> , 16);
assert_eq!(Option<UnsafeCell<&dyn Trait>>, 24); // (✗ niche opt)
assert_size!( UnsafeCell<&dyn Trait> , 16);
assert_size!(Option<UnsafeCell<&dyn Trait>>, 24); // (✗ niche opt)
#[repr(simd)]
pub struct Vec4<T>([T; 4]);
assert_eq!( UnsafeCell<Vec4<N32>> , 16);
assert_eq!(Option<UnsafeCell<Vec4<N32>>>, 32); // (✗ niche opt)
assert_size!( UnsafeCell<Vec4<N32>> , 16);
assert_size!(Option<UnsafeCell<Vec4<N32>>>, 32); // (✗ niche opt)
}