src/test/ui/imports/extern-prelude-extern-crate-fail.rs

   1 // aux-build:two_macros.rs
   2 // compile-flags:--extern non_existent
   3
   4 mod n {
   5     extern crate two_macros;
   6 }
   7
   8 mod m {
   9     fn check() {
  10         two_macros::m!(); //~ ERROR failed to resolve. Use of undeclared type or module `two_macros`
  11     }
  12 }
  13
  14 macro_rules! define_std_as_non_existent {
  15     () => {
  16         extern crate std as non_existent;
  17         //~^ ERROR `extern crate` items cannot shadow names passed with `--extern`
  18     }
  19 }
  20 define_std_as_non_existent!();
  21
  22 fn main() {}