mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 22:41:50 +00:00
39 lines
998 B
Rust
39 lines
998 B
Rust
#![crate_type = "lib"]
|
|
#![feature(transmutability)]
|
|
#![allow(dead_code, incomplete_features, non_camel_case_types)]
|
|
|
|
mod assert {
|
|
use std::mem::BikeshedIntrinsicFrom;
|
|
|
|
pub fn is_transmutable<
|
|
Src,
|
|
Dst,
|
|
Context,
|
|
const ASSUME_ALIGNMENT: bool,
|
|
const ASSUME_LIFETIMES: bool,
|
|
const ASSUME_VALIDITY: bool,
|
|
const ASSUME_VISIBILITY: bool,
|
|
>()
|
|
where
|
|
Dst: BikeshedIntrinsicFrom< //~ ERROR trait takes at most 3 generic arguments but 6 generic arguments were supplied
|
|
//~^ ERROR: the constant `ASSUME_ALIGNMENT` is not of type `Assume`
|
|
Src,
|
|
Context,
|
|
ASSUME_ALIGNMENT,
|
|
ASSUME_LIFETIMES,
|
|
ASSUME_VALIDITY,
|
|
ASSUME_VISIBILITY,
|
|
>,
|
|
{}
|
|
}
|
|
|
|
fn via_const() {
|
|
struct Context;
|
|
#[repr(C)] struct Src;
|
|
#[repr(C)] struct Dst;
|
|
|
|
const FALSE: bool = false;
|
|
|
|
assert::is_transmutable::<Src, Dst, Context, FALSE, FALSE, FALSE, FALSE>();
|
|
}
|