src/test/run-pass/extern-pass-empty.rs

   1 // Copyright 2014 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 // Test a foreign function that accepts empty struct.
  12
  13 // pretty-expanded FIXME #23616
  14
  15 struct TwoU8s {
  16     one: u8,
  17     two: u8,
  18 }
  19
  20 struct ManyInts {
  21     arg1: i8,
  22     arg2: i16,
  23     arg3: i32,
  24     arg4: i16,
  25     arg5: i8,
  26     arg6: TwoU8s,
  27 }
  28
  29 struct Empty;
  30
  31 #[link(name = "rust_test_helpers")]
  32 extern {
  33     fn rust_dbg_extern_empty_struct(v1: ManyInts, e: Empty, v2: ManyInts);
  34 }
  35
  36 pub fn main() {
  37     unsafe {
  38         let x = ManyInts {
  39             arg1: 2,
  40             arg2: 3,
  41             arg3: 4,
  42             arg4: 5,
  43             arg5: 6,
  44             arg6: TwoU8s { one: 7, two: 8, }
  45         };
  46         let y = ManyInts {
  47             arg1: 1,
  48             arg2: 2,
  49             arg3: 3,
  50             arg4: 4,
  51             arg5: 5,
  52             arg6: TwoU8s { one: 6, two: 7, }
  53         };
  54         let empty = Empty;
  55         rust_dbg_extern_empty_struct(x, empty, y);
  56     }
  57 }