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[rust.git] / src / test / ui / feature-gates / feature-gate-allow-internal-unsafe-nested-macro.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 // gate-test-allow_internal_unsafe
12
13 #![allow(unused_macros)]
14
15 macro_rules! bar {
16     () => {
17         // more layers don't help:
18         #[allow_internal_unsafe] //~ ERROR allow_internal_unsafe side-steps
19         macro_rules! baz {
20             () => {}
21         }
22     }
23 }
24
25 bar!();
26
27 fn main() {}