[rustc.git] / src / test / ui / transmutability / references.rs

//! Transmutations involving references are not yet supported.

#![crate_type = "lib"]
#![feature(transmutability)]
#![allow(dead_code, incomplete_features, non_camel_case_types)]

mod assert {
    use std::mem::{Assume, BikeshedIntrinsicFrom};
    pub struct Context;

    pub fn is_maybe_transmutable<Src, Dst>()
    where
        Dst: BikeshedIntrinsicFrom<Src, Context, {
            Assume {
                alignment: true,
                lifetimes: true,
                safety: true,
                validity: true,
            }
        }>
    {}
}

fn not_yet_implemented() {
    #[repr(C)] struct Unit;
    assert::is_maybe_transmutable::<&'static Unit, &'static Unit>(); //~ ERROR cannot be safely transmuted
}
Commit	Line	Data
064997fb FG	1	//! Transmutations involving references are not yet supported.
	2
	3	#![crate_type = "lib"]
	4	#![feature(transmutability)]
	5	#![allow(dead_code, incomplete_features, non_camel_case_types)]
	6
	7	mod assert {
f2b60f7d	8	use std::mem::{Assume, BikeshedIntrinsicFrom};
064997fb FG	9	pub struct Context;
	10
	11	pub fn is_maybe_transmutable<Src, Dst>()
	12	where
f2b60f7d FG	13	Dst: BikeshedIntrinsicFrom<Src, Context, {
	14	Assume {
	15	alignment: true,
	16	lifetimes: true,
	17	safety: true,
	18	validity: true,
	19	}
	20	}>
064997fb FG	21	{}
	22	}
	23
	24	fn not_yet_implemented() {
	25	#[repr(C)] struct Unit;
	26	assert::is_maybe_transmutable::<&'static Unit, &'static Unit>(); //~ ERROR cannot be safely transmuted
	27	}