tests/ui/hygiene/legacy_interaction.rs

   1 // check-pass
   2 #![allow(dead_code)]
   3
   4 // aux-build:legacy_interaction.rs
   5
   6 #![feature(decl_macro)]
   7 #[allow(unused)]
   8
   9 extern crate legacy_interaction;
  10 // ^ defines
  11 // ```rust
  12 //  macro_rules! m {
  13 //     () => {
  14 //         fn f() {} // (1)
  15 //         g() // (2)
  16 //     }
  17 // }
  18 // ```rust
  19
  20 mod def_site {
  21     // Unless this macro opts out of hygiene, it should resolve the same wherever it is invoked.
  22     pub macro m2() {
  23         ::legacy_interaction::m!();
  24         f(); // This should resolve to (1)
  25         fn g() {} // We want (2) resolve to this, not to (4)
  26     }
  27 }
  28
  29 mod use_site {
  30     fn test() {
  31         fn f() -> bool { true } // (3)
  32         fn g() -> bool { true } // (4)
  33
  34         ::def_site::m2!();
  35
  36         let _: bool = f(); // This should resolve to (3)
  37         let _: bool = g(); // This should resolve to (4)
  38     }
  39 }
  40
  41 fn main() {}