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macros-in-extern.rs
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macros-in-extern.rs
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//@ 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!();
}
// ferrocene-annotations: fls_xa7lp0zg1ol2
// Declarative Macros
//
// ferrocene-annotations: fls_tmoh3y9oyqsy
// External Blocks
//
// ferrocene-annotations: fls_8nzypdu9j3ge
// Metavariables
//
// ferrocene-annotations: fls_wjldgtio5o75
// Macro Expansion
//
// ferrocene-annotations: fls_vnvt40pa48n8
// Macro Invocation
//
// ferrocene-annotations: fls_4apk1exafxii
// Macro Matching
//
// ferrocene-annotations: fls_ym00b6ewf4n3
// Macro Transcription
//
// ferrocene-annotations: fls_n3ktmjqf87qb
// Rule Matching
//
// ferrocene-annotations: fls_qpx6lgapce57
// Token Matching