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Make transmuting from fn item types to pointer-sized types a hard error.

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Eduard Burtescu 2016-06-10 13:00:21 +03:00 • committed by Eduard-Mihai Burtescu
parent e1cb9ba221
commit 7650afc1ce
8 changed files with 153 additions and 116 deletions
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27
src/test/run-pass/transmute-from-fn-item-types.rs
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@ -1,27 +0,0 @@
// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#![allow(transmute_from_fn_item_types)]
use std::mem;
fn main() {
unsafe {
let u = mem::transmute(main);
let p = mem::transmute(main);
let f = mem::transmute(main);
let tuple: (usize, *mut (), fn()) = (u, p, f);
assert_eq!(mem::transmute::<_, [usize; 3]>(tuple), [main as usize; 3]);
mem::transmute::<_, usize>(main);
mem::transmute::<_, *mut ()>(main);
mem::transmute::<_, fn()>(main);
}
}