Jack Wrenn 23ab1bda92 safe transmute: revise safety analysis
Migrate to a simplified safety analysis that does not use visibility.

Closes https://github.com/rust-lang/project-safe-transmute/issues/15
2024-02-27 16:22:32 +00:00

17 lines
388 B
Rust

//@ check-fail
//@[next] compile-flags: -Znext-solver
#![feature(transmutability)]
mod assert {
use std::mem::{Assume, BikeshedIntrinsicFrom};
pub fn is_transmutable<Src, Dst>()
where
Dst: BikeshedIntrinsicFrom<Src, { Assume::SAFETY }>
{}
}
fn main() {
assert::is_transmutable::<&'static mut bool, &'static mut u8>() //~ ERROR cannot be safely transmuted
}