1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
//@ run-pass
#![feature(decl_macro)]
macro_rules! returns_isize(
($ident:ident) => (
fn $ident() -> isize;
)
);
macro takes_u32_returns_u32($ident:ident) {
fn $ident(arg: u32) -> u32;
}
macro_rules! emits_nothing(
() => ()
);
macro_rules! emits_multiple(
() => {
fn f1() -> u32;
fn f2() -> u32;
}
);
mod defs {
#[no_mangle]
extern "C" fn f1() -> u32 {
1
}
#[no_mangle]
extern "C" fn f2() -> u32 {
2
}
}
fn main() {
assert_eq!(unsafe { rust_get_test_int() }, 1);
assert_eq!(unsafe { rust_dbg_extern_identity_u32(0xDEADBEEF) }, 0xDEADBEEFu32);
assert_eq!(unsafe { f1() }, 1);
assert_eq!(unsafe { f2() }, 2);
}
#[link(name = "rust_test_helpers", kind = "static")]
extern "C" {
returns_isize!(rust_get_test_int);
takes_u32_returns_u32!(rust_dbg_extern_identity_u32);
emits_nothing!();
emits_multiple!();
}
|
