23ab1bda92
Migrate to a simplified safety analysis that does not use visibility. Closes https://github.com/rust-lang/project-safe-transmute/issues/15
27 lines
611 B
Rust
27 lines
611 B
Rust
#![crate_type = "lib"]
|
|
#![feature(transmutability)]
|
|
mod assert {
|
|
use std::mem::BikeshedIntrinsicFrom;
|
|
|
|
pub fn is_maybe_transmutable<Src, Dst>()
|
|
where
|
|
Dst: BikeshedIntrinsicFrom<Src>,
|
|
{
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
pub union Uninit {
|
|
a: [u8; usize::MAX],
|
|
}
|
|
|
|
#[repr(C)]
|
|
struct ExplicitlyPadded(Uninit);
|
|
|
|
assert::is_maybe_transmutable::<(), ExplicitlyPadded>();
|
|
//~^ ERROR `()` cannot be safely transmuted into `ExplicitlyPadded`
|
|
|
|
assert::is_maybe_transmutable::<ExplicitlyPadded, ()>();
|
|
//~^ ERROR `ExplicitlyPadded` cannot be safely transmuted into `()`
|
|
}
|