src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.rs

   1 // aux-build:two_macros.rs
   2
   3 macro_rules! define_vec {
   4     () => {
   5         extern crate std as Vec;
   6     }
   7 }
   8
   9 define_vec!();
  10
  11 mod m {
  12     fn check() {
  13         Vec::panic!(); //~ ERROR `Vec` is ambiguous
  14     }
  15 }
  16
  17 macro_rules! define_other_core {
  18     () => {
  19         extern crate std as core;
  20         //~^ ERROR macro-expanded `extern crate` items cannot shadow names passed with `--extern`
  21     }
  22 }
  23
  24 define_other_core!();
  25
  26 fn main() {}