src/test/compile-fail/hygiene/fields.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 // ignore-pretty pretty-printing is unhygienic
  12
  13 #![feature(decl_macro)]
  14
  15 mod foo {
  16     struct S { x: u32 }
  17     struct T(u32);
  18
  19     pub macro m($S:ident, $x:ident) {{
  20         struct $S {
  21             $x: u32,
  22             x: i32,
  23         }
  24
  25         let s = S { x: 0 }; //~ ERROR type `foo::S` is private
  26         let _ = s.x; //~ ERROR type `foo::S` is private
  27
  28         let t = T(0); //~ ERROR type `foo::T` is private
  29         let _ = t.0; //~ ERROR type `foo::T` is private
  30
  31         let s = $S { $x: 0, x: 1 };
  32         assert_eq!((s.$x, s.x), (0, 1));
  33         s
  34     }}
  35 }
  36
  37 fn main() {
  38     let s = foo::m!(S, x);
  39     assert_eq!(s.x, 0);
  40 }