src/test/ui/run-pass/hygiene/items.rs

   1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // run-pass
  12 // ignore-pretty pretty-printing is unhygienic
  13
  14 #![feature(decl_macro)]
  15
  16 pub macro m($foo:ident, $f:ident, $e:expr) {
  17     mod foo {
  18         pub fn f() -> u32 { 0 }
  19         pub fn $f() -> u64 { 0 }
  20     }
  21
  22     mod $foo {
  23         pub fn f() -> i32 { 0 }
  24         pub fn $f() -> i64 { 0  }
  25     }
  26
  27     let _: u32 = foo::f();
  28     let _: u64 = foo::$f();
  29     let _: i32 = $foo::f();
  30     let _: i64 = $foo::$f();
  31     let _: i64 = $e;
  32 }
  33
  34 fn main() {
  35     m!(foo, f, foo::f());
  36     let _: i64 = foo::f();
  37 }