src/test/ui/proc-macro/macros-in-extern.rs

   1 // aux-build:test-macros.rs
   2 // ignore-wasm32
   3
   4 extern crate test_macros;
   5
   6 use test_macros::{nop_attr, no_output, emit_input};
   7
   8 fn main() {
   9     assert_eq!(unsafe { rust_get_test_int() }, 0isize);
  10     assert_eq!(unsafe { rust_dbg_extern_identity_u32(0xDEADBEEF) }, 0xDEADBEEF);
  11 }
  12
  13 #[link(name = "rust_test_helpers", kind = "static")]
  14 extern {
  15     #[no_output]
  16     //~^ ERROR macro invocations in `extern {}` blocks are experimental
  17     fn some_definitely_unknown_symbol_which_should_be_removed();
  18
  19     #[nop_attr]
  20     //~^ ERROR macro invocations in `extern {}` blocks are experimental
  21     fn rust_get_test_int() -> isize;
  22
  23     emit_input!(fn rust_dbg_extern_identity_u32(arg: u32) -> u32;);
  24     //~^ ERROR macro invocations in `extern {}` blocks are experimental
  25 }