src/test/compile-fail/conflicting-repr-hints.rs

   1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 #![allow(dead_code)]
  12 #![feature(attr_literals)]
  13 #![feature(repr_align)]
  14
  15 #[repr(C)]
  16 enum A { A }
  17
  18 #[repr(u64)]
  19 enum B { B }
  20
  21 #[repr(C, u64)] //~ WARNING conflicting representation hints
  22 enum C { C }
  23
  24 #[repr(u32, u64)] //~ WARNING conflicting representation hints
  25 enum D { D }
  26
  27 #[repr(C, packed)]
  28 struct E(i32);
  29
  30 #[repr(packed, align(8))]
  31 struct F(i32); //~ ERROR type has conflicting packed and align representation hints
  32
  33 #[repr(packed)]
  34 #[repr(align(8))]
  35 struct G(i32); //~ ERROR type has conflicting packed and align representation hints
  36
  37 #[repr(align(8))]
  38 #[repr(packed)]
  39 struct H(i32); //~ ERROR type has conflicting packed and align representation hints
  40
  41 #[repr(packed, align(8))]
  42 union X { //~ ERROR type has conflicting packed and align representation hints
  43     i: i32
  44 }
  45
  46 #[repr(packed)]
  47 #[repr(align(8))]
  48 union Y { //~ ERROR type has conflicting packed and align representation hints
  49     i: i32
  50 }
  51
  52 #[repr(align(8))]
  53 #[repr(packed)]
  54 union Z { //~ ERROR type has conflicting packed and align representation hints
  55     i: i32
  56 }
  57
  58 fn main() {}