tests/ui/proc-macro/macros-in-extern.rs

   1 // run-pass
   2 // aux-build:test-macros.rs
   3 // ignore-wasm32
   4
   5 #[macro_use]
   6 extern crate test_macros;
   7
   8 fn main() {
   9     assert_eq!(unsafe { rust_get_test_int() }, 1);
  10     assert_eq!(unsafe { rust_dbg_extern_identity_u32(0xDEADBEEF) }, 0xDEADBEEF);
  11 }
  12
  13 #[link(name = "rust_test_helpers", kind = "static")]
  14 extern "C" {
  15     #[empty_attr]
  16     fn some_definitely_unknown_symbol_which_should_be_removed();
  17
  18     #[identity_attr]
  19     fn rust_get_test_int() -> isize;
  20
  21     identity!(
  22         fn rust_dbg_extern_identity_u32(arg: u32) -> u32;
  23     );
  24 }