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(repr_packed)]
  13
  14 #[repr(C)]
  15 enum A { A }
  16
  17 #[repr(u64)]
  18 enum B { B }
  19
  20 #[repr(C, u64)] //~ WARNING conflicting representation hints
  21 enum C { C }
  22
  23 #[repr(u32, u64)] //~ WARNING conflicting representation hints
  24 enum D { D }
  25
  26 #[repr(C, packed)]
  27 struct E(i32);
  28
  29 #[repr(packed, align(8))]
  30 struct F(i32); //~ ERROR type has conflicting packed and align representation hints
  31
  32 #[repr(packed)]
  33 #[repr(align(8))]
  34 struct G(i32); //~ ERROR type has conflicting packed and align representation hints
  35
  36 #[repr(align(8))]
  37 #[repr(packed)]
  38 struct H(i32); //~ ERROR type has conflicting packed and align representation hints
  39
  40 #[repr(packed, packed(2))]
  41 struct I(i32); //~ ERROR type has conflicting packed representation hints
  42
  43 #[repr(packed(2))]
  44 #[repr(packed)]
  45 struct J(i32); //~ ERROR type has conflicting packed representation hints
  46
  47 #[repr(packed, packed(1))]
  48 struct K(i32);
  49
  50 #[repr(packed, align(8))]
  51 union X { //~ ERROR type has conflicting packed and align representation hints
  52     i: i32
  53 }
  54
  55 #[repr(packed)]
  56 #[repr(align(8))]
  57 union Y { //~ ERROR type has conflicting packed and align representation hints
  58     i: i32
  59 }
  60
  61 #[repr(align(8))]
  62 #[repr(packed)]
  63 union Z { //~ ERROR type has conflicting packed and align representation hints
  64     i: i32
  65 }
  66
  67 fn main() {}