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1 | // Copyright 2016 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 | mod stuff { | |
12 | pub struct Item { | |
13 | c_object: Box<CObj>, | |
14 | } | |
15 | pub struct CObj { | |
16 | name: Option<String>, | |
17 | } | |
18 | impl Item { | |
19 | pub fn new() -> Item { | |
20 | Item { | |
21 | c_object: Box::new(CObj { name: None }), | |
22 | } | |
23 | } | |
24 | } | |
25 | } | |
26 | ||
27 | macro_rules! check_ptr_exist { | |
28 | ($var:expr, $member:ident) => ( | |
29 | (*$var.c_object).$member.is_some() | |
30 | //~^ ERROR field `name` of struct `stuff::CObj` is private | |
31 | //~^^ ERROR field `c_object` of struct `stuff::Item` is private | |
32 | ); | |
33 | } | |
34 | ||
35 | fn main() { | |
36 | let item = stuff::Item::new(); | |
37 | println!("{}", check_ptr_exist!(item, name)); | |
7453a54e | 38 | } |